/* TeaTube - Premium YouTube Clone Design */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* YouTube Dark Theme Colors - Premium */
  --yt-spec-base-background: #0f0f0f;
  --yt-spec-raised-background: #1a1a1a;
  --yt-spec-menu-background: #212121;
  --yt-spec-10-percent-layer: rgba(255, 255, 255, 0.1);
  --yt-spec-text-primary: #f1f1f1;
  --yt-spec-text-secondary: #aaaaaa;
  --yt-spec-text-disabled: #717171;
  --yt-spec-icon-inactive: #909090;
  --yt-spec-brand-background-solid: #ff0000;
  --yt-spec-brand-background-hover: #cc0000;
  --yt-spec-static-overlay-background-heavy: rgba(0, 0, 0, 0.85);
  --yt-spec-static-overlay-background-medium: rgba(0, 0, 0, 0.6);
  --yt-spec-call-to-action: #3ea6ff;
  --yt-spec-wordmark-text: #ffffff;
  --yt-spec-input-background: #121212;
  --yt-spec-border: rgba(255, 255, 255, 0.12);
  
  /* Spacing */
  --ytd-masthead-height: 56px;
  --ytd-sidebar-width: 240px;
  --ytd-transition-timing: cubic-bezier(0.05, 0, 0, 1);
}

body {
  font-family: "Roboto", "Arial", sans-serif;
  background: var(--yt-spec-base-background);
  color: var(--yt-spec-text-primary);
  overflow-x: hidden;
  line-height: 1.4;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ==================== HEADER ==================== */
#masthead {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--ytd-masthead-height);
  background: linear-gradient(135deg, 
    color-mix(in srgb, var(--yt-spec-brand-background-solid) 15%, var(--yt-spec-base-background) 85%) 0%,
    var(--yt-spec-base-background) 60%
  );
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  padding: 0 12px;
  z-index: 2020;
  border-bottom: 1px solid color-mix(in srgb, var(--yt-spec-brand-background-solid) 30%, transparent 70%);
  overflow: hidden;
}

#masthead-container {
  display: flex;
  align-items: center;
  width: 100%;
  height: 100%;
  gap: 8px;
  min-width: 0;
}

/* Start - Logo ve hamburger */
#start {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
  min-width: 0;
}

#logo {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  flex-shrink: 0;
  text-decoration: none;
}

#logo img {
  height: 36px;
  width: auto;
  object-fit: contain;
  flex-shrink: 0;
}

#logo span {
  font-weight: 700;
  font-size: 16px;
  letter-spacing: -0.3px;
  color: var(--yt-spec-text-primary);
  white-space: nowrap;
}

/* Center - Arama: flex ile ortada */
#center {
  flex: 1;
  display: flex;
  justify-content: center;
  min-width: 0;
  max-width: 560px;
  margin: 0 auto;
}

#center form {
  width: 100%;
  max-width: 480px;
  display: flex;
}

/* End - Sağ butonlar */
#end {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

#end img {
  width: 32px !important;
  height: 32px !important;
  max-width: 32px !important;
  max-height: 32px !important;
  border-radius: 50%;
  object-fit: cover;
  cursor: pointer;
}

.yt-icon-button {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: transparent;
  border: none;
  color: var(--yt-spec-text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  transition: background 0.15s var(--ytd-transition-timing);
  position: relative;
}

.yt-icon-button:hover {
  background: var(--yt-spec-touch-response);
}

.yt-icon-button:active {
  background: rgba(255, 255, 255, 0.15);
}

#logo {
  display: flex;
  align-items: center;
  gap: 4px;
  text-decoration: none;
  color: var(--yt-spec-wordmark-text);
  font-size: 20px;
  font-weight: 700;
  cursor: pointer;
  padding: 18px 14px 18px 16px;
  margin-left: -16px;
  transition: opacity 0.1s;
}

#logo:hover {
  opacity: 0.9;
}

#logo i {
  color: var(--yt-spec-brand-background-solid);
  font-size: 32px;
  filter: drop-shadow(0 0 8px rgba(255, 0, 0, 0.3));
}


#search-form {
  display: flex;
  width: 100%;
  max-width: 560px;
  height: 40px;
}

#search-input,
#searchInput,
.search-input {
  flex: 1;
  height: 100%;
  padding: 0 4px 0 16px;
  background: var(--yt-spec-base-background);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-right: none;
  border-radius: 40px 0 0 40px;
  color: var(--yt-spec-text-primary);
  font-size: 16px;
  outline: none;
  transition: border-color 0.1s;
  min-width: 0;
}

#search-input:focus,
#searchInput:focus,
.search-input:focus {
  border-color: var(--yt-spec-call-to-action);
}

#search-input::placeholder,
#searchInput::placeholder,
.search-input::placeholder {
  color: var(--yt-spec-text-disabled);
}

#search-button {
  width: 56px;
  height: 100%;
  background: var(--yt-spec-10-percent-layer);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-left: none;
  border-radius: 0 40px 40px 0;
  color: var(--yt-spec-text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  transition: background 0.1s;
}

#search-button:hover {
  background: rgba(255, 255, 255, 0.15);
}

.yt-icon-button .badge {
  position: absolute;
  top: 6px;
  right: 6px;
  background: var(--yt-spec-brand-background-solid);
  color: white;
  font-size: 10px;
  padding: 2px 5px;
  border-radius: 10px;
  font-weight: 600;
  min-width: 16px;
  text-align: center;
}

#user-avatar,
#userPhoto {
  width: 32px !important;
  height: 32px !important;
  min-width: 32px;
  min-height: 32px;
  max-width: 32px;
  max-height: 32px;
  border-radius: 50%;
  object-fit: cover;
  cursor: pointer;
  transition: transform 0.1s;
  background: var(--yt-spec-10-percent-layer);
  display: block;
}

#user-avatar:hover,
#userPhoto:hover {
  transform: scale(1.05);
}

/* Upload Progress Bar */
.upload-progress-overlay {
  position: fixed;
  top: var(--ytd-masthead-height);
  left: 0;
  right: 0;
  background: var(--yt-spec-raised-background);
  padding: 12px 24px;
  z-index: 2015;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  display: none;
  animation: slideDown 0.3s var(--ytd-transition-timing);
}

@keyframes slideDown {
  from {
    transform: translateY(-100%);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.upload-progress-overlay.show {
  display: block;
}

.upload-progress-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 16px;
}

.upload-progress-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--yt-spec-10-percent-layer);
  border-radius: 50%;
}

.upload-progress-icon i {
  font-size: 20px;
  color: var(--yt-spec-brand-background-solid);
}

.upload-progress-details {
  flex: 1;
  min-width: 0;
}

.upload-progress-title {
  font-size: 14px;
  font-weight: 500;
  color: var(--yt-spec-text-primary);
  margin-bottom: 4px;
}

.upload-progress-status {
  font-size: 12px;
  color: var(--yt-spec-text-secondary);
}

.upload-progress-bar-container {
  flex: 1;
  height: 4px;
  background: var(--yt-spec-10-percent-layer);
  border-radius: 2px;
  overflow: hidden;
  position: relative;
}

.upload-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--yt-spec-brand-background-solid) 0%, #ff6b6b 100%);
  border-radius: 2px;
  transition: width 0.3s ease-out;
  position: relative;
  overflow: hidden;
}

.upload-progress-bar::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg, transparent 0%, rgba(255, 255, 255, 0.3) 50%, transparent 100%);
  animation: shimmer 2s infinite;
}

@keyframes shimmer {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}

.upload-progress-percentage {
  font-size: 14px;
  font-weight: 500;
  color: var(--yt-spec-text-primary);
  min-width: 50px;
  text-align: right;
}

/* ==================== SIDEBAR ==================== */
#guide {
  position: fixed;
  top: var(--ytd-masthead-height);
  left: 0;
  width: var(--ytd-sidebar-width);
  height: calc(100vh - var(--ytd-masthead-height));
  background: var(--yt-spec-base-background);
  overflow-y: auto;
  overflow-x: hidden;
  z-index: 2010;
  transition: width 0.2s var(--ytd-transition-timing);
  scrollbar-width: thin;
}

#guide::-webkit-scrollbar { width: 4px; }
#guide::-webkit-scrollbar-track { background: transparent; }
#guide::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.15); border-radius: 4px; }

/* Mini mod: genişlik 72px, ikonlar görünür kalır */
#guide.collapsed { width: 72px; }

#guide.collapsed .guide-item span {
  opacity: 0;
  width: 0;
  overflow: hidden;
  display: inline-block;
}

.guide-section {
  border-bottom: 1px solid rgba(255,255,255,0.08);
  padding: 8px 0;
}
.guide-section:last-child { border-bottom: none; }

.guide-item {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 0 24px;
  height: 40px;
  color: var(--yt-spec-text-primary);
  cursor: pointer;
  transition: background 0.15s;
  font-size: 14px;
  font-weight: 400;
  position: relative;
  white-space: nowrap;
}

.guide-item:hover { background: var(--yt-spec-10-percent-layer); }

.guide-item.active {
  background: var(--yt-spec-10-percent-layer);
  font-weight: 500;
}

.guide-item.active::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--yt-spec-brand-background-solid);
  border-radius: 0 2px 2px 0;
}

.guide-item i {
  font-size: 20px;
  min-width: 24px;
  width: 24px;
  text-align: center;
  flex-shrink: 0;
}

/* ==================== MAIN CONTENT ==================== */
#content {
  margin-left: var(--ytd-sidebar-width);
  margin-top: var(--ytd-masthead-height);
  padding: 24px 24px 40px 24px;
  min-height: calc(100vh - var(--ytd-masthead-height));
  transition: margin-left 0.2s var(--ytd-transition-timing);
}

#content.sidebar-collapsed { margin-left: 72px; }

/* ==================== VIDEO GRID ==================== */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px 16px;
}

.video-card {
  cursor: pointer;
  transition: transform 0.1s;
}

.video-card:hover {
  transform: scale(1.02);
}

.video-thumbnail-container {
  position: relative;
  width: 100%;
  aspect-ratio: 16/9;
  border-radius: 12px;
  overflow: hidden;
  background: var(--yt-spec-raised-background);
}

.video-thumbnail {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.2s;
}

.video-card:hover .video-thumbnail {
  transform: scale(1.05);
}

.video-duration {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: var(--yt-spec-static-overlay-background-heavy);
  color: white;
  padding: 3px 4px;
  border-radius: 2px;
  font-size: 12px;
  font-weight: 500;
  line-height: 1.2;
}

.video-info {
  display: flex;
  gap: 12px;
  padding: 12px 0 0 0;
}

.channel-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.video-details {
  flex: 1;
  min-width: 0;
}

.video-title {
  font-size: 14px;
  font-weight: 500;
  line-height: 20px;
  color: var(--yt-spec-text-primary);
  margin-bottom: 4px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  word-break: break-word;
}

.video-channel {
  font-size: 12px;
  color: var(--yt-spec-text-secondary);
  margin-bottom: 2px;
  line-height: 18px;
}

.video-metadata {
  font-size: 12px;
  color: var(--yt-spec-text-secondary);
  display: flex;
  gap: 4px;
  line-height: 18px;
}

/* ==================== AUTH SCREEN ==================== */
.auth-screen {
  width: 100vw;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #0a0a0a;
  position: relative;
  overflow: hidden;
}

.auth-screen::before {
  content: '';
  position: absolute;
  top: -30%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255,0,51,0.12) 0%, transparent 70%);
  pointer-events: none;
}

.auth-container {
  background: rgba(255,255,255,0.04);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 48px 44px;
  border-radius: 20px;
  width: 420px;
  max-width: 92%;
  border: 1px solid rgba(255,255,255,0.08);
  box-shadow: 0 24px 64px rgba(0,0,0,0.6), 0 0 0 1px rgba(255,0,51,0.08);
  position: relative;
  z-index: 1;
}

.auth-logo {
  text-align: center;
  margin-bottom: 36px;
}

.auth-logo i {
  font-size: 64px;
  color: var(--yt-spec-brand-background-solid);
  margin-bottom: 16px;
  filter: drop-shadow(0 0 16px rgba(255, 0, 0, 0.4));
}

.auth-logo h1 {
  font-size: 30px;
  font-weight: 700;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, #ff0033 0%, #ff6b6b 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 4px;
}

.auth-form h2 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 24px;
  color: var(--yt-spec-text-primary);
}

.auth-form .yt-input {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 10px;
  height: 50px;
  transition: border-color 0.2s, background 0.2s;
}

.auth-form .yt-input:focus {
  border-color: rgba(255,0,51,0.5);
  background: rgba(255,255,255,0.09);
  box-shadow: 0 0 0 3px rgba(255,0,51,0.1);
}

.yt-input {
  display: block;
  width: 100%;
  height: 48px;
  padding: 0 16px;
  background: var(--yt-spec-input-background);
  border: 1px solid var(--yt-spec-border);
  border-radius: 4px;
  color: var(--yt-spec-text-primary);
  font-size: 14px;
  margin-bottom: 16px;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  box-sizing: border-box;
}

.yt-input:focus {
  border-color: var(--yt-spec-call-to-action);
  box-shadow: 0 0 0 2px rgba(62, 166, 255, 0.15);
}

.yt-input::placeholder {
  color: var(--yt-spec-text-disabled);
}

.yt-textarea {
  width: 100%;
  min-height: 100px;
  padding: 12px 16px;
  background: var(--yt-spec-input-background);
  border: 1px solid var(--yt-spec-border);
  border-radius: 4px;
  color: var(--yt-spec-text-primary);
  font-size: 14px;
  font-family: inherit;
  resize: vertical;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  box-sizing: border-box;
}

.yt-textarea:focus {
  border-color: var(--yt-spec-call-to-action);
  box-shadow: 0 0 0 2px rgba(62, 166, 255, 0.15);
}

.yt-textarea::placeholder {
  color: var(--yt-spec-text-disabled);
}

.yt-select {
  width: 100%;
  height: 48px;
  padding: 0 16px;
  background: var(--yt-spec-input-background);
  border: 1px solid var(--yt-spec-border);
  border-radius: 4px;
  color: var(--yt-spec-text-primary);
  font-size: 14px;
  outline: none;
  cursor: pointer;
  transition: border-color 0.2s;
}

.yt-select:focus {
  border-color: var(--yt-spec-call-to-action);
}

.yt-input[type="file"] {
  padding: 12px 16px;
  cursor: pointer;
  height: auto;
}

.yt-input[type="file"]::-webkit-file-upload-button {
  background: var(--yt-spec-10-percent-layer);
  color: var(--yt-spec-text-primary);
  border: 1px solid var(--yt-spec-border);
  border-radius: 4px;
  padding: 6px 14px;
  cursor: pointer;
  margin-right: 12px;
  font-size: 13px;
}

.yt-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 36px;
  padding: 0 16px;
  width: auto;
  background: linear-gradient(135deg, var(--yt-spec-brand-background-solid) 0%, #cc0000 100%);
  color: white;
  border: none;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: opacity 0.15s, transform 0.1s;
  white-space: nowrap;
  flex-shrink: 0;
}

.yt-btn:hover:not(:disabled) {
  opacity: 0.85;
}

.yt-btn:active:not(:disabled) {
  transform: scale(0.98);
}

.yt-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.yt-btn-secondary {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--yt-spec-text-primary);
}

.yt-btn-secondary:hover:not(:disabled) {
  background: var(--yt-spec-10-percent-layer);
  opacity: 1;
}

/* Auth ekranındaki buton tam genişlik */
.auth-form .yt-btn {
  width: 100%;
  height: 50px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.3px;
  background: linear-gradient(135deg, #ff0033 0%, #cc0022 100%);
  box-shadow: 0 4px 16px rgba(255,0,51,0.3);
  margin-top: 4px;
}

.yt-checkbox-label {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 16px 0;
  font-size: 14px;
  color: var(--yt-spec-text-secondary);
  cursor: pointer;
}

.yt-checkbox {
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: var(--yt-spec-brand-background-solid);
}

.auth-link {
  text-align: center;
  margin-top: 20px;
  font-size: 13px;
  color: rgba(255,255,255,0.4);
}

.auth-link a {
  color: #ff4466;
  text-decoration: none;
  font-weight: 600;
  transition: opacity 0.2s;
}

.auth-link a:hover {
  opacity: 0.8;
  text-decoration: underline;
}

/* ==================== MODAL ==================== */
.yt-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--yt-spec-static-overlay-background-heavy);
  z-index: 3000;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(4px);
}

.yt-modal.show {
  display: flex;
  animation: fadeIn 0.2s var(--ytd-transition-timing);
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.yt-modal-content {
  background: var(--yt-spec-raised-background);
  border-radius: 12px;
  width: 90%;
  max-width: 800px;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.6);
  animation: slideUp 0.3s var(--ytd-transition-timing);
}

@keyframes slideUp {
  from {
    transform: translateY(40px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.yt-modal-header {
  padding: 16px 24px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  background: var(--yt-spec-raised-background);
  z-index: 1;
}

.yt-modal-title {
  font-size: 20px;
  font-weight: 400;
  color: var(--yt-spec-text-primary);
}

.yt-modal-close {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: transparent;
  border: none;
  color: var(--yt-spec-text-primary);
  cursor: pointer;
  font-size: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s;
}

.yt-modal-close:hover {
  background: var(--yt-spec-touch-response);
}

.yt-modal-body {
  padding: 24px;
}

/* Form Group */
.yt-form-group {
  margin-bottom: 20px;
}

.yt-form-label {
  display: block;
  margin-bottom: 8px;
  font-size: 14px;
  font-weight: 500;
  color: var(--yt-spec-text-primary);
}

/* ==================== LOADING ==================== */
.yt-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
}

.yt-spinner {
  width: 48px;
  height: 48px;
  border: 4px solid rgba(255, 255, 255, 0.1);
  border-top-color: var(--yt-spec-brand-background-solid);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ==================== TOAST ==================== */
.yt-toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--yt-spec-raised-background);
  color: var(--yt-spec-text-primary);
  padding: 12px 24px;
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.5);
  z-index: 4000;
  animation: toastSlideUp 0.3s var(--ytd-transition-timing);
  min-width: 200px;
  text-align: center;
}

@keyframes toastSlideUp {
  from {
    transform: translateX(-50%) translateY(100px);
    opacity: 0;
  }
  to {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
  }
}

/* ==================== SIDEBAR OVERLAY ==================== */
.sidebar-overlay {
  display: none;
  position: fixed;
  top: var(--ytd-masthead-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--yt-spec-static-overlay-background-medium);
  z-index: 2000;
  backdrop-filter: blur(2px);
}

.sidebar-overlay.show {
  display: block;
  animation: fadeIn 0.2s;
}

/* ==================== RESPONSIVE ==================== */

/* Mobil: Sidebar overlay olarak açılır */
@media (max-width: 1312px) {
  #guide {
    transform: translateX(-100%);
    width: var(--ytd-sidebar-width) !important;
    box-shadow: 2px 0 16px rgba(0,0,0,0.5);
    transition: transform 0.2s var(--ytd-transition-timing);
  }
  
  #guide.show {
    transform: translateX(0);
  }
  
  #guide.collapsed {
    transform: translateX(-100%);
    width: var(--ytd-sidebar-width) !important;
  }
  
  /* Mobilde mini mod yok */
  #guide.collapsed .guide-item span { opacity: 1; width: auto; overflow: visible; }
  
  #content, #content.sidebar-collapsed {
    margin-left: 0 !important;
  }
}

@media (min-width: 1313px) {
  .sidebar-overlay { display: none !important; }
}

@media (max-width: 768px) {
  .video-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }
}

@media (max-width: 480px) {
  .video-grid { grid-template-columns: 1fr; }
  #logo span { display: none; }
  #center { display: none; }
  #mobileSearchBtn { display: flex !important; }
  .auth-container { padding: 24px 16px; }
}

/* ==================== CATEGORY BAR ==================== */
.category-bar {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 12px;
  scrollbar-width: none;
  position: sticky;
  top: var(--ytd-masthead-height);
  background: var(--yt-spec-base-background);
  z-index: 100;
  padding-top: 4px;
  margin-bottom: 4px;
}

.category-bar::-webkit-scrollbar {
  display: none;
}

.category-chip {
  flex-shrink: 0;
  height: 32px;
  padding: 0 12px;
  background: var(--yt-spec-raised-background);
  border: none;
  border-radius: 8px;
  color: var(--yt-spec-text-primary);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s;
  white-space: nowrap;
}

.category-chip:hover {
  background: rgba(255,255,255,0.15);
}

.category-chip.active {
  background: var(--yt-spec-text-primary);
  color: var(--yt-spec-base-background);
}

/* ==================== SECTION HEADERS ==================== */
.section-header {
  font-size: 20px;
  font-weight: 500;
  margin: 0 0 16px 0;
  padding-top: 8px;
  color: var(--yt-spec-text-primary);
}

/* ==================== SETTINGS CARDS ==================== */
.settings-card {
  background: var(--yt-spec-raised-background);
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 16px;
}

.settings-card-title {
  font-size: 16px;
  font-weight: 500;
  color: var(--yt-spec-text-primary);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.settings-card .yt-input {
  margin-bottom: 12px;
}

.settings-card .yt-input:last-of-type {
  margin-bottom: 0;
}

/* ==================== THEME GRID ==================== */
.theme-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 12px;
}

.theme-option {
  cursor: pointer;
  border-radius: 10px;
  overflow: hidden;
  border: 2px solid transparent;
  transition: border-color 0.2s, transform 0.1s;
}

.theme-option:hover {
  transform: scale(1.03);
  border-color: rgba(255,255,255,0.3);
}

.theme-option.active {
  border-color: var(--yt-spec-brand-background-solid);
  box-shadow: 0 0 12px rgba(255,0,0,0.3);
}

.theme-preview {
  height: 70px;
  padding: 10px;
  border-radius: 8px 8px 0 0;
}

.theme-name {
  display: block;
  text-align: center;
  font-size: 12px;
  padding: 8px 4px;
  background: var(--yt-spec-raised-background);
  color: var(--yt-spec-text-primary);
  font-weight: 500;
}
.gradient-text {
  background: linear-gradient(135deg, #ff0000 0%, #ff6b6b 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.glow-effect {
  filter: drop-shadow(0 0 8px rgba(255, 0, 0, 0.3));
}

.smooth-transition {
  transition: all 0.2s var(--ytd-transition-timing);
}


/* ==================== SHORTS ==================== */
.shorts-container {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: calc(100vh - var(--ytd-masthead-height) - 48px);
}

.shorts-player-wrap {
  display: flex;
  align-items: flex-end;
  gap: 16px;
  position: relative;
}

.shorts-video-box {
  width: 360px;
  height: 640px;
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  background: #000;
  box-shadow: 0 8px 32px rgba(0,0,0,0.6);
}

.shorts-info {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 16px;
  background: linear-gradient(to top, rgba(0,0,0,0.85) 0%, transparent 100%);
  color: white;
}

.shorts-actions {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding-bottom: 8px;
}

.shorts-action-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  background: rgba(255,255,255,0.12);
  border: none;
  border-radius: 50%;
  width: 52px;
  height: 52px;
  color: white;
  cursor: pointer;
  font-size: 22px;
  transition: background 0.15s, transform 0.1s;
  justify-content: center;
}

.shorts-action-btn:hover {
  background: rgba(255,255,255,0.22);
  transform: scale(1.08);
}

.shorts-action-btn span {
  font-size: 11px;
  margin-top: 2px;
}

.shorts-nav {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.shorts-nav-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--yt-spec-raised-background);
  border: none;
  color: var(--yt-spec-text-primary);
  cursor: pointer;
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s, transform 0.1s;
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.shorts-nav-btn:hover:not(:disabled) {
  background: rgba(255,255,255,0.15);
  transform: scale(1.08);
}

.shorts-nav-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

@media (max-width: 600px) {
  .shorts-video-box { width: 100vw; height: 80vh; border-radius: 0; }
  .shorts-player-wrap { gap: 8px; }
}

/* Ses slider mobilde gizli, hover/touch ile görünür */
.short-vol-slider {
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  border-radius: 2px;
  background: rgba(255,255,255,0.3);
  outline: none;
}
.short-vol-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #ff0033;
  cursor: pointer;
}
@media (max-width: 768px) {
  .short-vol-slider { width: 60px !important; }
}

/* Shorts Sol Kontroller */
.shorts-left-controls {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding-bottom: 8px;
}

.shorts-volume-slider {
  -webkit-appearance: none;
  appearance: none;
  writing-mode: vertical-lr;
  direction: rtl;
  width: 6px;
  height: 120px;
  background: rgba(255,255,255,0.2);
  border-radius: 3px;
  outline: none;
  cursor: pointer;
}

.shorts-volume-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: white;
  cursor: pointer;
  box-shadow: 0 1px 4px rgba(0,0,0,0.4);
}

.shorts-volume-slider::-webkit-slider-runnable-track {
  background: rgba(255,255,255,0.3);
  border-radius: 3px;
}

/* ==================== SHORTS GRID (Anasayfa) ==================== */
.shorts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 12px;
}

.short-card {
  cursor: pointer;
  transition: transform 0.15s;
}

.short-card:hover {
  transform: scale(1.03);
}

.short-card-thumb {
  position: relative;
  aspect-ratio: 9/16;
  border-radius: 12px;
  overflow: hidden;
  background: var(--yt-spec-raised-background);
}

.short-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.2s;
}

.short-card:hover .short-card-thumb img {
  transform: scale(1.05);
}

.short-badge {
  position: absolute;
  top: 8px;
  left: 8px;
  background: var(--yt-spec-brand-background-solid);
  color: white;
  font-size: 10px;
  font-weight: 600;
  padding: 3px 7px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  gap: 4px;
}

.short-duration-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.2);
  opacity: 0;
  transition: opacity 0.2s;
}

.short-card:hover .short-duration-overlay {
  opacity: 1;
}

.short-card-info {
  padding: 8px 4px 0;
}

.short-card-title {
  font-size: 13px;
  font-weight: 500;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  color: var(--yt-spec-text-primary);
}

.short-card-meta {
  font-size: 12px;
  color: var(--yt-spec-text-secondary);
  margin-top: 3px;
}

/* ==================== MESAJLAŞMA ==================== */
.messages-layout {
  display: flex;
  height: calc(100vh - var(--ytd-masthead-height) - 48px);
  gap: 0;
  border-radius: 12px;
  overflow: hidden;
  background: var(--yt-spec-raised-background);
}

/* Sol: Arkadaş Listesi */
.messages-sidebar {
  width: 300px;
  flex-shrink: 0;
  border-right: 1px solid rgba(255,255,255,0.08);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.friends-list {
  flex: 1;
  overflow-y: auto;
}

.friend-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  cursor: pointer;
  transition: background 0.15s;
  position: relative;
}

.friend-item:hover {
  background: rgba(255,255,255,0.06);
}

.friend-item.active {
  background: rgba(255,255,255,0.1);
}

.online-dot {
  position: absolute;
  bottom: 0;
  right: 0;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: #4caf50;
  border: 2px solid var(--yt-spec-raised-background);
  display: none;
}

.online-dot.show {
  display: block;
}

/* ── Toplu Mesaj Seçim ───────────────────────────────────────────────────── */
.select-toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  background: var(--yt-spec-raised-background);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  flex-shrink: 0;
  animation: slideDown 0.15s ease;
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.msg-select-check {
  display: none;
  align-items: center;
  justify-content: center;
  width: 28px;
  flex-shrink: 0;
  cursor: pointer;
}

.msg-checkbox {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.3);
  transition: border-color 0.15s, background 0.15s;
  flex-shrink: 0;
}

.msg-checkbox.checked {
  background: var(--yt-spec-brand-background-solid);
  border-color: var(--yt-spec-brand-background-solid);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 10'%3E%3Cpath d='M1 5l3 3 7-7' stroke='white' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  background-size: 10px;
}

/* Seçim modu aktifken checkbox'ları göster */
.chat-messages.select-mode .msg-select-check {
  display: flex;
}

.chat-messages.select-mode .chat-msg {
  cursor: pointer;
  border-radius: 8px;
  transition: background 0.1s;
}

.chat-messages.select-mode .chat-msg:hover {
  background: rgba(255,255,255,0.04);
}

.chat-msg.selected {
  background: rgba(255, 0, 0, 0.08) !important;
}

/* Seçim modunda balonlara tıklama */
.chat-messages.select-mode .chat-bubble {
  pointer-events: none;
}
/* ─────────────────────────────────────────────────────────────────────────── */

/* Upload type seçim butonları */
.upload-type-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 14px 10px;
  border-radius: 10px;
  border: 2px solid rgba(255,255,255,0.15);
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  text-align: center;
  gap: 4px;
  font-size: 13px;
  font-weight: 500;
  color: var(--yt-spec-text-secondary);
}

.upload-type-btn small {
  font-size: 11px;
  font-weight: 400;
  opacity: 0.7;
}

.upload-type-btn.active {
  border-color: var(--yt-spec-brand-background-solid);
  background: rgba(255,0,0,0.08);
  color: var(--yt-spec-text-primary);
}

.upload-type-btn:hover {
  border-color: rgba(255,255,255,0.35);
}

/* Chat fotoğraf gönder butonu */
.chat-photo-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  color: var(--yt-spec-text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
  transition: background 0.15s, color 0.15s;
  align-self: flex-end;
}

.chat-photo-btn:hover {
  background: rgba(255,255,255,0.15);
  color: var(--yt-spec-text-primary);
}

/* Yazıyor animasyonu */
.typing-indicator {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  vertical-align: middle;
}

.typing-indicator span {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--yt-spec-brand-background-solid);
  animation: typingBounce 1.2s infinite ease-in-out;
}

.typing-indicator span:nth-child(1) { animation-delay: 0s; }
.typing-indicator span:nth-child(2) { animation-delay: 0.2s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.4s; }

@keyframes typingBounce {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
  30% { transform: translateY(-5px); opacity: 1; }
}

.unread-badge {
  background: var(--yt-spec-brand-background-solid);
  color: white;
  font-size: 11px;
  font-weight: 600;
  min-width: 18px;
  height: 18px;
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 5px;
}

/* Sağ: Chat Alanı */
.messages-chat {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.chat-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  flex-shrink: 0;
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  scrollbar-width: thin;
}

.chat-msg {
  display: flex;
  max-width: 70%;
}

.chat-msg-me {
  align-self: flex-end;
  flex-direction: row;
  justify-content: flex-end;
}

.chat-msg-them {
  align-self: flex-start;
}

.chat-bubble {
  padding: 10px 14px;
  border-radius: 18px;
  font-size: 14px;
  line-height: 1.5;
  cursor: context-menu;
  word-break: break-word;
  position: relative;
}

.chat-msg-me .chat-bubble {
  background: linear-gradient(135deg, var(--yt-spec-brand-background-solid), #cc0000);
  color: white;
  border-bottom-right-radius: 4px;
}

.chat-msg-them .chat-bubble {
  background: var(--yt-spec-raised-background);
  border: 1px solid rgba(255,255,255,0.1);
  color: var(--yt-spec-text-primary);
  border-bottom-left-radius: 4px;
}

.chat-meta {
  font-size: 11px;
  opacity: 0.7;
  margin-top: 4px;
  display: flex;
  align-items: center;
  gap: 4px;
  justify-content: flex-end;
}

.chat-input-area {
  display: flex;
  gap: 8px;
  padding: 12px 16px;
  border-top: 1px solid rgba(255,255,255,0.08);
  flex-shrink: 0;
}

.chat-input-wrapper {
  display: flex;
  flex-direction: column;
  border-top: 1px solid rgba(255,255,255,0.08);
  flex-shrink: 0;
}

.chat-input-wrapper .chat-input-area {
  border-top: none;
  padding-top: 8px;
}

.chat-input {
  flex: 1;
  height: 44px;
  padding: 0 16px;
  background: var(--yt-spec-input-background);
  border: 1px solid var(--yt-spec-border);
  border-radius: 22px;
  color: var(--yt-spec-text-primary);
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s;
}

.chat-textarea {
  height: auto;
  min-height: 44px;
  max-height: 120px;
  padding: 10px 16px;
  border-radius: 14px;
  resize: none;
  line-height: 1.5;
  overflow-y: auto;
  font-family: inherit;
}

.chat-input:focus {
  border-color: var(--yt-spec-brand-background-solid);
}

.chat-send-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--yt-spec-brand-background-solid);
  border: none;
  color: white;
  cursor: pointer;
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.15s, transform 0.1s;
  flex-shrink: 0;
}

.chat-send-btn:hover {
  opacity: 0.85;
  transform: scale(1.05);
}

@media (max-width: 768px) {
  .messages-sidebar { width: 72px; }
  .messages-sidebar .friend-item p { display: none; }
  .messages-sidebar .last-msg { display: none; }
}

/* ── Floating Mini Chat Widget ─────────────────────────────────────────── */
.float-chat-widget {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 320px;
  height: 420px;
  background: var(--yt-spec-base-background);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 14px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.5);
  display: flex;
  flex-direction: column;
  z-index: 8000;
  overflow: hidden;
  resize: both;
}

.float-chat-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  background: var(--yt-spec-raised-background);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  cursor: grab;
  user-select: none;
  flex-shrink: 0;
}

.float-chat-header:active { cursor: grabbing; }

.float-chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 5px;
  scrollbar-width: thin;
}

.float-msg {
  display: flex;
  align-items: flex-end;
  gap: 5px;
  max-width: 85%;
}

.float-msg-me {
  align-self: flex-end;
  flex-direction: row;
  justify-content: flex-end;
}

.float-msg-them {
  align-self: flex-start;
}

.float-msg-avatar {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.float-bubble {
  padding: 7px 11px;
  border-radius: 14px;
  font-size: 13px;
  line-height: 1.45;
  word-break: break-word;
}

.float-msg-me .float-bubble {
  background: linear-gradient(135deg, var(--yt-spec-brand-background-solid), #cc0000);
  color: white;
  border-bottom-right-radius: 3px;
}

.float-msg-them .float-bubble {
  background: var(--yt-spec-raised-background);
  border: 1px solid rgba(255,255,255,0.1);
  color: var(--yt-spec-text-primary);
  border-bottom-left-radius: 3px;
}

.float-meta {
  font-size: 10px;
  opacity: 0.6;
  display: block;
  margin-top: 3px;
  text-align: right;
}

.float-chat-input-area {
  display: flex;
  gap: 6px;
  padding: 8px 10px;
  border-top: 1px solid rgba(255,255,255,0.08);
  flex-shrink: 0;
  align-items: flex-end;
}

.float-chat-input {
  flex: 1;
  min-height: 34px;
  max-height: 80px;
  padding: 7px 12px;
  background: var(--yt-spec-input-background);
  border: 1px solid var(--yt-spec-border);
  border-radius: 10px;
  color: var(--yt-spec-text-primary);
  font-size: 13px;
  outline: none;
  resize: none;
  font-family: inherit;
  line-height: 1.4;
  overflow-y: auto;
  transition: border-color 0.2s;
}

.float-chat-input:focus { border-color: var(--yt-spec-brand-background-solid); }

.float-chat-send {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--yt-spec-brand-background-solid);
  border: none;
  color: white;
  cursor: pointer;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: opacity 0.15s;
}

.float-chat-send:hover { opacity: 0.85; }
/* ─────────────────────────────────────────────────────────────────────── */

/* ── Fotoğraf Sayfası ────────────────────────────────────────────────────── */
.photo-page {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 24px;
  align-items: start;
}

.photo-page-left {
  position: sticky;
  top: 80px;
  border-radius: 14px;
  overflow: hidden;
  background: var(--yt-spec-raised-background);
  display: flex;
  align-items: center;
  justify-content: center;
  max-height: calc(100vh - 100px);
}

.photo-page-left img {
  width: 100%;
  height: auto;
  max-height: calc(100vh - 100px);
  object-fit: contain;
  display: block;
  border-radius: 14px;
  transition: opacity 0.3s ease;
}

.photo-page-right {
  overflow-y: auto;
  max-height: calc(100vh - 100px);
  padding-right: 2px;
}

/* Fotoğraf aksiyon butonları - temiz dark stil */
.photo-action-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  background: var(--yt-spec-raised-background);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 20px;
  color: var(--yt-spec-text-primary);
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  transition: background 0.15s, border-color 0.15s;
}

.photo-action-btn:hover {
  background: rgba(255,255,255,0.12);
  border-color: rgba(255,255,255,0.2);
}

.photo-action-btn.active {
  background: rgba(255,0,0,0.15);
  border-color: var(--yt-spec-brand-background-solid);
  color: var(--yt-spec-brand-background-solid);
}

@media (max-width: 900px) {
  .photo-page { grid-template-columns: 1fr; }
  .photo-page-left { position: static; max-height: 80vw; }
  .photo-page-right { max-height: none; }
}

/* ── Fotoğraf Kare Grid ──────────────────────────────────────────────────── */
.photo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 8px;
  margin-bottom: 8px;
}

.photo-card {
  cursor: pointer;
  border-radius: 10px;
  overflow: hidden;
  background: var(--yt-spec-raised-background);
  transition: transform 0.15s, box-shadow 0.15s;
}

.photo-card:hover {
  transform: scale(1.02);
  box-shadow: 0 4px 16px rgba(0,0,0,0.4);
}

.photo-card-img {
  position: relative;
  overflow: hidden;
}

.photo-card-img img {
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: contain;
  display: block;
  transition: transform 0.3s ease;
}

.photo-card:hover .photo-card-img img {
  transform: scale(1.05);
}

.photo-card-overlay {
  position: absolute;
  top: 6px;
  right: 6px;
  background: rgba(0,0,0,0.55);
  border-radius: 6px;
  padding: 3px 6px;
  font-size: 11px;
  color: white;
}

.photo-card-info {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 8px;
  font-size: 12px;
  color: var(--yt-spec-text-secondary);
  overflow: hidden;
}

/* Video kartlarına video badge */
.video-type-badge {
  position: absolute;
  bottom: 6px;
  left: 6px;
  background: rgba(0,0,0,0.7);
  border-radius: 4px;
  padding: 2px 6px;
  font-size: 11px;
  color: white;
  pointer-events: none;
}

.video-duration {
  position: absolute;
  bottom: 6px;
  right: 6px;
  background: rgba(0,0,0,0.8);
  color: white;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
  backdrop-filter: blur(4px);
  pointer-events: none;
}

.video-thumbnail-container {
  position: relative;
}
/* ─────────────────────────────────────────────────────────────────────────── */

@keyframes slideInRight {
  from { transform: translateX(120%); opacity: 0; }
  to   { transform: translateX(0);    opacity: 1; }
}

/* Upload type buton - reklam alanı */
.upload-type-btn {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 14px 8px; border-radius: 10px; cursor: pointer; text-align: center;
  border: 2px solid rgba(255,255,255,0.1); background: var(--yt-spec-raised-background);
  transition: all 0.15s; gap: 4px;
}
.upload-type-btn small { font-size: 10px; color: var(--yt-spec-text-secondary); }
.upload-type-btn.active {
  border-color: var(--yt-spec-brand-background-solid);
  background: rgba(255,0,51,0.1);
  color: var(--yt-spec-brand-background-solid);
}

/* ==================== MOBİL UYUM ==================== */

/* Tablet (768px) */
@media (max-width: 768px) {
  /* Watch page */
  .watch-page { flex-direction: column; }
  .watch-primary, .watch-secondary { width: 100%; }

  /* Messages */
  .messages-layout { flex-direction: column; }
  .messages-sidebar { width: 100%; height: 180px; border-right: none; border-bottom: 1px solid rgba(255,255,255,0.1); }
  .messages-chat { height: calc(100vh - 290px); }

  /* Auth */
  .auth-container { padding: 32px 20px; }

  /* Upload */
  .upload-type-btn { padding: 10px 4px; font-size: 12px; }
  .upload-type-btn small { display: none; }

  /* Shorts grid */
  .shorts-grid { grid-template-columns: repeat(2, 1fr); }

  /* Content padding */
  #content { padding-bottom: 60px; }
}

/* Mobil (480px) */
@media (max-width: 480px) {
  /* Header */
  #logo img { height: 28px !important; }
  #logo span { display: none; }
  #center { display: none; }
  #mobileSearchBtn { display: flex !important; }
  #end { gap: 4px; }
  .yt-icon-button { width: 36px; height: 36px; }

  /* Video */
  .video-grid { grid-template-columns: 1fr; }
  .shorts-grid { grid-template-columns: 1fr; }

  /* Auth */
  .auth-container { padding: 24px 16px; border-radius: 0; min-height: 100vh; display: flex; flex-direction: column; justify-content: center; }
  .auth-screen { align-items: flex-start; }
  .auth-logo h1 { font-size: 24px; }

  /* Watch */
  .watch-actions { flex-wrap: wrap; gap: 6px; }
  .watch-action-btn { font-size: 12px; padding: 6px 10px; }

  /* Category */
  .category-chip { font-size: 12px; padding: 6px 10px; }

  /* Modal — bottom sheet */
  #modal { align-items: flex-end; }
  .yt-modal-content {
    width: 100% !important;
    max-width: 100% !important;
    border-radius: 20px 20px 0 0;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    max-height: 92vh;
    overflow-y: auto;
    margin: 0;
  }

  /* Messages */
  .messages-sidebar { height: 150px; }
  .messages-chat { height: calc(100vh - 260px); }
  .chat-textarea { font-size: 16px; } /* iOS zoom engelle */

  /* Float chat */
  .float-chat-widget { width: calc(100vw - 16px) !important; right: 8px !important; bottom: 8px !important; }

  /* Settings */
  .settings-card { padding: 14px; }

  /* Genel */
  .section-header { font-size: 18px; }
}

/* Dokunmatik */
@media (hover: none) and (pointer: coarse) {
  .yt-btn { min-height: 44px; }
  .yt-input { min-height: 44px; font-size: 16px; }
  .yt-select { min-height: 44px; font-size: 16px; }
  .guide-item { min-height: 44px; }
  .category-chip { min-height: 36px; }
  .video-card, .short-card { -webkit-tap-highlight-color: transparent; }
}

/* ==================== MOBİL ALT BAR ==================== */

#mobileBottomBar {
  display: none;
}

@media (max-width: 768px) {
  /* Eski nav gizle */
  #mobileNav { display: none !important; }

  /* Yeni bottom bar */
  #mobileBottomBar {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: rgba(10,10,10,0.97);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-top: 1px solid rgba(255,255,255,0.08);
    z-index: 2010;
    align-items: center;
    justify-content: space-around;
    padding: 0 8px;
  }

  .mbb-btn {
    background: none;
    border: none;
    color: rgba(255,255,255,0.6);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    font-size: 20px;
    -webkit-tap-highlight-color: transparent;
    transition: color 0.15s;
    position: relative;
  }

  .mbb-btn:active { opacity: 0.7; }

  /* Reals ortada büyük kırmızı */
  .mbb-reals {
    width: 54px;
    height: 54px;
    background: var(--yt-spec-brand-background-solid);
    color: white !important;
    border-radius: 50%;
    font-size: 22px;
    box-shadow: 0 4px 16px rgba(255,0,51,0.4);
  }

  /* Content padding */
  #content { padding-bottom: 64px !important; }

  /* Sidebar gizle */
  #guide { display: none !important; }
  #guide-button { display: none !important; }

  /* Logo büyük */
  #logo img { height: 38px !important; }
  #logo span { display: none; }

  /* + butonu göster */
  #uploadPlusBtn { display: flex !important; align-items: center; font-size: 26px; }

  /* Mobil arama butonu göster */
  #mobileSearchBtn { display: flex !important; align-items: center; font-size: 18px; }

  /* Desktop'ta + butonu gizle */

  /* Header sağ — chat+bildirim+profil */
  #end { gap: 6px; display: flex; align-items: center; margin-left: auto; }
  #end .yt-icon-button { width: 36px; height: 36px; font-size: 18px; display: flex; }
  #end .yt-icon-button i { color: var(--yt-spec-text-primary); }
  #end .mobile-only i { color: var(--yt-spec-text-primary) !important; }
  #end img { width: 30px !important; height: 30px !important; display: block !important; }

  /* Masthead container flex */
  #masthead-container { justify-content: space-between; }
  #start { flex: 0 0 auto; display: flex; align-items: center; gap: 8px; }

  /* Arama gizle mobilde */
  #center { display: none; }

  /* Profil sayfası butonlar taşmasın */
  .profile-page > div[style*="display: flex"] {
    flex-wrap: wrap !important;
    gap: 6px !important;
  }
  .profile-page .yt-btn {
    font-size: 12px !important;
    padding: 0 10px !important;
    height: 32px !important;
    white-space: nowrap;
  }

  /* Genel overflow engeli */
  #pageContent, #content {
    overflow-x: hidden;
    max-width: 100vw;
  }
  body { overflow-x: hidden; }
}

/* ==================== MOBİL MESAJLAR ==================== */

.mobile-messages-page {
  height: calc(100vh - var(--ytd-masthead-height) - 60px);
  overflow-y: auto;
  overflow-x: hidden;
}

.mobile-friends-row {
  display: flex;
  gap: 12px;
  padding: 8px 16px 12px;
  overflow-x: auto;
  scrollbar-width: none;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.mobile-friends-row::-webkit-scrollbar { display: none; }

.mobile-friend-avatar {
  display: flex;
  flex-direction: column;
  align-items: center;
  cursor: pointer;
  flex-shrink: 0;
  width: 64px;
  -webkit-tap-highlight-color: transparent;
}

.mobile-chat-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  cursor: pointer;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  -webkit-tap-highlight-color: transparent;
  transition: background 0.1s;
}
.mobile-chat-row:active { background: rgba(255,255,255,0.05); }

/* Tam ekran chat */
.mobile-chat-fullscreen {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--yt-spec-base-background, #0f0f0f);
  display: flex;
  flex-direction: column;
  z-index: 500;
  overflow: hidden;
}

.mobile-chat-header {
  display: flex;
  align-items: center;
  padding: 8px 12px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  background: var(--yt-spec-raised-background);
  flex-shrink: 0;
  min-height: 56px;
}

.mobile-chat-fullscreen .chat-messages {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 12px;
  -webkit-overflow-scrolling: touch;
}

.mobile-chat-fullscreen .chat-input-wrapper {
  flex-shrink: 0;
  border-top: 1px solid rgba(255,255,255,0.08);
  background: var(--yt-spec-raised-background);
  padding: 8px;
}

/* Profil butonları taşmasın */
@media (max-width: 480px) {
  .profile-page [style*="display: flex"][style*="gap: 10px"] {
    flex-wrap: wrap;
    gap: 8px !important;
  }
  .profile-page .yt-btn {
    font-size: 12px;
    padding: 0 10px;
    height: 32px;
  }

  /* Genel taşma engeli */
  #pageContent {
    overflow-x: hidden;
    max-width: 100vw;
  }

  * {
    max-width: 100%;
    box-sizing: border-box;
  }
}

/* ==================== REALS SAĞ BUTONLAR (Instagram tarzı) ==================== */
.shorts-right-actions {
  position: absolute;
  right: 12px;
  bottom: 100px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  z-index: 10;
}

.sra-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  background: none;
  border: none;
  color: white;
  cursor: pointer;
  font-size: 26px;
  -webkit-tap-highlight-color: transparent;
  filter: drop-shadow(0 1px 3px rgba(0,0,0,0.6));
  transition: transform 0.15s;
}

.sra-btn:active { transform: scale(0.88); }

.sra-btn span {
  font-size: 12px;
  font-weight: 600;
  text-shadow: 0 1px 3px rgba(0,0,0,0.6);
}

.sra-btn.liked i { color: #ff0033; }

/* ==================== MOBİL REALS TAM EKRAN ==================== */
@media (max-width: 768px) {
  .shorts-container {
    min-height: calc(85vh - var(--ytd-masthead-height, 56px));
    padding: 0;
    align-items: stretch;
  }

  .shorts-player-wrap {
    flex-direction: row;
    align-items: center;
    gap: 8px;
    width: 100%;
    height: calc(100dvh - var(--ytd-masthead-height, 56px) - 60px);
    position: relative;
  }

  .shorts-video-box {
    width: 100% !important;
    height: 100% !important;
    border-radius: 0 !important;
    flex: 1;
  }

  .shorts-video-box video {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

  /* Navigasyon butonları mobilde gizle (swipe ile geçiş) */
  .shorts-player-wrap > div:last-child {
    display: none;
  }

  .shorts-nav-col { display: none; }

  .shorts-right-actions {
    right: 10px;
    bottom: 90px;
    gap: 22px;
  }

  .sra-btn { font-size: 28px; }
}

/* PC'de video kutusu yanında nav butonları */
@media (min-width: 769px) {
  .shorts-right-actions {
    right: 16px;
    bottom: 80px;
  }
}

/* ==================== WHATSAPP CHAT STİLİ ==================== */
.chat-msg {
  display: flex;
  max-width: 78%;
  margin-bottom: 2px;
}

.chat-msg-me {
  align-self: flex-end;
  flex-direction: row;
  justify-content: flex-end;
  max-width: 78%;
}

.chat-msg-them {
  align-self: flex-start;
  max-width: 78%;
}

.chat-bubble {
  padding: 8px 12px;
  border-radius: 16px;
  font-size: 14px;
  line-height: 1.5;
  cursor: context-menu;
  word-break: break-word;
  position: relative;
  max-width: 100%;
}

.chat-msg-me .chat-bubble {
  background: linear-gradient(135deg, #ff0033, #cc0022);
  color: white;
  border-bottom-right-radius: 4px;
}

.chat-msg-them .chat-bubble {
  background: #1e2a3a;
  color: var(--yt-spec-text-primary);
  border-bottom-left-radius: 4px;
}

/* Chat input WhatsApp stili */
.chat-input-area {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  padding: 8px 12px;
  background: var(--yt-spec-raised-background);
}

.chat-textarea {
  flex: 1;
  background: var(--yt-spec-input-background, rgba(255,255,255,0.08));
  border: 1px solid var(--yt-spec-border, rgba(255,255,255,0.1));
  border-radius: 20px;
  padding: 10px 16px;
  color: var(--yt-spec-text-primary);
  font-size: 14px;
  resize: none;
  max-height: 120px;
  min-height: 40px;
  outline: none;
  font-family: inherit;
  transition: border-color 0.2s;
}

.chat-textarea:focus {
  border-color: var(--yt-spec-brand-background-solid);
}

.chat-send-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: #ff0033;
  border: none;
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 16px;
}

.chat-photo-btn {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--yt-spec-text-secondary);
  cursor: pointer;
  font-size: 18px;
  flex-shrink: 0;
}

/* ==================== MOBİL FEED (Instagram stili) ==================== */

.mobile-feed {
  padding-bottom: 70px;
  overflow-x: hidden;
}

/* Kare fotoğraf grid */
.mobile-photo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  padding: 2px;
}

.mobile-photo-item {
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
  cursor: pointer;
  background: var(--yt-spec-raised-background);
  -webkit-tap-highlight-color: transparent;
}

.mobile-photo-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.2s;
}

.mobile-photo-item:active img { transform: scale(0.97); }

.mobile-photo-likes {
  position: absolute;
  bottom: 4px;
  left: 4px;
  background: rgba(0,0,0,0.6);
  color: white;
  font-size: 10px;
  padding: 2px 5px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  gap: 3px;
}

.mobile-photo-likes i { color: #ff4466; font-size: 9px; }


/* ═══════════════════════════════════════════════════════════════
   INSTAGRAM-STYLE OVERHAUL
   ═══════════════════════════════════════════════════════════════ */

/* ── Stories Bar ─────────────────────────────────────────────── */
.mobile-stories-bar {
  display: flex;
  gap: 14px;
  padding: 14px 16px 12px;
  overflow-x: auto;
  scrollbar-width: none;
  background: var(--yt-spec-base-background);
}

/* ── Photo Grid (Instagram 3-col) ────────────────────────────── */
.mobile-photo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
}
.mobile-photo-item {
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
  cursor: pointer;
  background: var(--yt-spec-raised-background);
  -webkit-tap-highlight-color: transparent;
}
.mobile-photo-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.2s;
}
.mobile-photo-item:active img { transform: scale(0.96); }
.mobile-photo-likes {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 18px 6px 5px;
  background: linear-gradient(transparent, rgba(0,0,0,0.55));
  color: white;
  font-size: 11px;
  display: flex;
  align-items: center;
  gap: 4px;
  font-weight: 600;
}
.mobile-photo-likes i { color: #fff; font-size: 10px; }

/* ── Reals Grid Cards ────────────────────────────────────────── */
.shorts-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
}
@media (min-width: 600px) {
  .shorts-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 10px; }
}
.short-card {
  cursor: pointer;
  position: relative;
  overflow: hidden;
  border-radius: 0;
  -webkit-tap-highlight-color: transparent;
}
@media (min-width: 600px) {
  .short-card { border-radius: 10px; }
}
.short-card-thumb {
  position: relative;
  aspect-ratio: 9/16;
  overflow: hidden;
  background: #111;
}
.short-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.25s;
}
.short-card:active .short-card-thumb img { transform: scale(0.97); }
.short-badge {
  position: absolute;
  top: 6px;
  left: 6px;
  background: rgba(0,0,0,0.55);
  color: #fff;
  font-size: 10px;
  padding: 2px 7px;
  border-radius: 20px;
  font-weight: 600;
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  gap: 4px;
}
.short-duration-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0);
  transition: background 0.2s;
}
.short-card:hover .short-duration-overlay { background: rgba(0,0,0,0.25); }
.short-card-info {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 20px 8px 6px;
  background: linear-gradient(transparent, rgba(0,0,0,0.7));
}
.short-card-title {
  font-size: 12px;
  font-weight: 600;
  color: #fff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin: 0 0 2px;
}
.short-card-meta {
  font-size: 10px;
  color: rgba(255,255,255,0.7);
  margin: 0;
}

/* ── Reals Player (TikTok/Instagram Reels style) ─────────────── */
.shorts-container {
  position: fixed;
  inset: 0;
  background: #000;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  /* Sadece Reals sayfasında aktif - diğer sayfalarda pageContent temizlenir */
}
.shorts-player-wrap {
  position: relative;
  width: 100%;
  max-width: 420px;
  height: 100%;
  display: flex;
  align-items: center;
}
.shorts-video-box {
  position: relative;
  width: 100%;
  height: 100%;
  max-height: 85vh;
  overflow: hidden;
  background: #000;
}
.shorts-video-box video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.shorts-info {
  position: absolute;
  bottom: 80px;
  left: 0;
  right: 72px;
  padding: 0 14px 14px;
  background: none;
  pointer-events: none;
}
.shorts-info > * { pointer-events: auto; }
.shorts-right-actions {
  position: absolute;
  right: 10px;
  bottom: 90px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
}
.sra-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  background: none;
  border: none;
  color: #fff;
  cursor: pointer;
  font-size: 13px;
  -webkit-tap-highlight-color: transparent;
  filter: drop-shadow(0 1px 3px rgba(0,0,0,0.6));
}
.sra-btn i { font-size: 26px; }
.sra-btn span { font-size: 12px; font-weight: 600; }
.sra-btn.liked i { color: #ff4466; }
.shorts-nav-col {
  position: absolute;
  right: -56px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 12px;
}
@media (max-width: 600px) {
  .shorts-nav-col { display: none; }
}
.shorts-nav-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
  border: none;
  color: #fff;
  cursor: pointer;
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(6px);
  transition: background 0.15s;
}
.shorts-nav-btn:hover { background: rgba(255,255,255,0.28); }
.shorts-nav-btn:disabled { opacity: 0.3; cursor: default; }

/* ── Mesajlar Sayfası ────────────────────────────────────────── */
.mobile-messages-page {
  background: var(--yt-spec-base-background);
  min-height: calc(100vh - var(--ytd-masthead-height) - 60px);
}
.mobile-friends-row {
  display: flex;
  gap: 14px;
  padding: 8px 16px 12px;
  overflow-x: auto;
  scrollbar-width: none;
}
.mobile-friends-row::-webkit-scrollbar { display: none; }
.mobile-friend-avatar {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  cursor: pointer;
  flex-shrink: 0;
  -webkit-tap-highlight-color: transparent;
}
.mobile-friend-avatar img {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid rgba(255,255,255,0.12);
}
.mobile-friend-avatar p {
  font-size: 11px;
  color: var(--yt-spec-text-primary);
  max-width: 60px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  text-align: center;
}
.mobile-chat-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  cursor: pointer;
  transition: background 0.15s;
  -webkit-tap-highlight-color: transparent;
}
.mobile-chat-row:active { background: rgba(255,255,255,0.05); }

/* ── Chat Bubbles (WhatsApp/Instagram style) ─────────────────── */
.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 3px;
  background: var(--yt-spec-base-background);
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,0.1) transparent;
}
.chat-msg {
  display: flex;
  align-items: flex-end;
  gap: 6px;
  max-width: 78%;
  animation: msgIn 0.18s ease;
}
@keyframes msgIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}
.chat-msg-me {
  align-self: flex-end;
  flex-direction: row-reverse;
}
.chat-msg-them {
  align-self: flex-start;
}
.chat-bubble {
  padding: 9px 13px;
  border-radius: 18px;
  font-size: 14px;
  line-height: 1.5;
  cursor: context-menu;
  word-break: break-word;
  position: relative;
  max-width: 100%;
}
.chat-msg-me .chat-bubble {
  background: var(--yt-spec-brand-background-solid);
  color: #fff;
  border-bottom-right-radius: 5px;
}
.chat-msg-them .chat-bubble {
  background: var(--yt-spec-raised-background);
  color: var(--yt-spec-text-primary);
  border-bottom-left-radius: 5px;
  border: 1px solid rgba(255,255,255,0.07);
}
.chat-meta {
  font-size: 10px;
  color: rgba(255,255,255,0.55);
  text-align: right;
  margin-top: 4px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 3px;
}
.chat-msg-them .chat-meta { color: var(--yt-spec-text-secondary); }

/* ── Chat Input (Instagram style) ───────────────────────────── */
.chat-input-area {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  padding: 8px 12px;
  background: var(--yt-spec-base-background);
  border-top: 1px solid rgba(255,255,255,0.06);
}
.chat-textarea {
  flex: 1;
  background: var(--yt-spec-raised-background);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 22px;
  padding: 10px 16px;
  color: var(--yt-spec-text-primary);
  font-size: 14px;
  resize: none;
  max-height: 120px;
  min-height: 40px;
  outline: none;
  font-family: inherit;
  line-height: 1.4;
  transition: border-color 0.2s;
}
.chat-textarea:focus { border-color: var(--yt-spec-brand-background-solid); }
.chat-send-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--yt-spec-brand-background-solid);
  border: none;
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 15px;
  transition: transform 0.15s, opacity 0.15s;
}
.chat-send-btn:active { transform: scale(0.9); opacity: 0.85; }
.chat-photo-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--yt-spec-text-secondary);
  font-size: 16px;
  flex-shrink: 0;
  transition: background 0.15s;
}
.chat-photo-btn:hover { background: rgba(255,255,255,0.14); }

/* ── Mobile Chat Header ──────────────────────────────────────── */
.mobile-chat-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: var(--yt-spec-base-background);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(12px);
}

/* ── Video Feed Cards (Instagram post style) ─────────────────── */
.video-card {
  background: var(--yt-spec-base-background);
  border-radius: 0;
  overflow: hidden;
  cursor: pointer;
  transition: none;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
@media (min-width: 600px) {
  .video-card {
    background: var(--yt-spec-raised-background);
    border-radius: 12px;
    border-bottom: none;
    transition: transform 0.15s, box-shadow 0.15s;
  }
  .video-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(0,0,0,0.4);
  }
}
.video-thumbnail-container {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: #111;
}
.video-thumbnail {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.25s;
}
.video-card:hover .video-thumbnail { transform: scale(1.03); }
.video-info {
  display: flex;
  gap: 10px;
  padding: 10px 12px 12px;
  align-items: flex-start;
}
.channel-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}
.video-title {
  font-size: 14px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--yt-spec-text-primary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 3px;
}
.video-channel {
  font-size: 12px;
  color: var(--yt-spec-text-secondary);
  display: flex;
  align-items: center;
  gap: 3px;
  margin-bottom: 2px;
}
.video-metadata {
  font-size: 11px;
  color: var(--yt-spec-text-secondary);
  display: flex;
  gap: 6px;
}

/* ── Mobile Feed Layout ──────────────────────────────────────── */
.mobile-feed {
  background: var(--yt-spec-base-background);
  padding-bottom: 80px;
}

/* ── Unread Badge ────────────────────────────────────────────── */
.unread-badge {
  background: var(--yt-spec-brand-background-solid);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  min-width: 18px;
  height: 18px;
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 5px;
  border: 2px solid var(--yt-spec-base-background);
}

/* ── Online Dot ──────────────────────────────────────────────── */
.online-dot {
  width: 11px;
  height: 11px;
  background: #4caf50;
  border-radius: 50%;
  border: 2px solid var(--yt-spec-base-background);
  position: absolute;
  bottom: 1px;
  right: 1px;
}

/* ── Smooth page transitions ─────────────────────────────────── */
#pageContent {
  animation: pageIn 0.15s ease;
  animation-fill-mode: both;
}
@keyframes pageIn {
  from { opacity: 0.3; transform: translateY(4px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Bottom Nav (Instagram style) ───────────────────────────── */
.mobile-bottom-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 56px;
  background: var(--yt-spec-base-background);
  border-top: 1px solid rgba(255,255,255,0.07);
  display: flex;
  align-items: center;
  justify-content: space-around;
  z-index: 200;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}
.mbb-btn {
  flex: 1;
  height: 100%;
  background: none;
  border: none;
  color: var(--yt-spec-text-secondary);
  font-size: 22px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  transition: color 0.15s;
  -webkit-tap-highlight-color: transparent;
}
.mbb-btn:active { color: var(--yt-spec-brand-background-solid); transform: scale(0.88); }
.mbb-reals { font-size: 26px; }

/* ── Masthead (Instagram top bar) ───────────────────────────── */
#masthead {
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255,255,255,0.06) !important;
}

/* ── Photo card (desktop) ────────────────────────────────────── */
.photo-card {
  cursor: pointer;
  border-radius: 4px;
  overflow: hidden;
  background: var(--yt-spec-raised-background);
  transition: transform 0.15s;
  position: relative;
}
.photo-card:hover { transform: scale(1.02); }
.photo-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.photo-card-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
}
.photo-card:hover .photo-card-overlay { background: rgba(0,0,0,0.35); }
.photo-card-stats {
  display: flex;
  gap: 16px;
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  opacity: 0;
  transition: opacity 0.2s;
}
.photo-card:hover .photo-card-stats { opacity: 1; }
.photo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3px;
}

/* ── Group message input ─────────────────────────────────────── */
#groupMsgInput {
  background: none !important;
  border: none !important;
  outline: none !important;
  color: var(--yt-spec-text-primary) !important;
}

/* ── Instagram Post Card (mobil feed) ───────────────────────── */
.insta-post-card {
  cursor: pointer;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  background: var(--yt-spec-base-background);
  -webkit-tap-highlight-color: transparent;
  transition: opacity 0.15s;
}
.insta-post-card:active { opacity: 0.85; }
.insta-post-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px 8px;
}
.insta-post-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  border: 1.5px solid rgba(255,255,255,0.12);
}

/* ── Mobile Header Instagram style ──────────────────────────── */
@media (max-width: 768px) {
  #guide-button { display: none !important; }
  #uploadPlusBtn { display: flex !important; }
  #center { display: none !important; }
  #center-logo { display: flex !important; }
  .desktop-only { display: none !important; }
  .mobile-only { display: flex !important; }
  #masthead-container { position: relative; }
}
@media (min-width: 769px) {
  #center-logo { display: none !important; }
  #center { visibility: visible !important; pointer-events: auto !important; }
  .mobile-only { display: none !important; }
  #uploadPlusBtn { display: none !important; }
}

/* ── Bottom Nav active state ─────────────────────────────────── */
.mbb-btn.active { color: var(--yt-spec-text-primary) !important; }
.mbb-btn { color: var(--yt-spec-text-secondary); transition: color 0.15s, transform 0.1s; }
.mbb-btn:active { transform: scale(0.85); }
#mbb-profile img.active-profile { border-color: var(--yt-spec-brand-background-solid) !important; }

/* ── Mobil tam ekran anasayfa ────────────────────────────────── */
@media (max-width: 768px) {
  #content {
    margin-left: 0 !important;
    margin-top: var(--ytd-masthead-height) !important;
    padding: 0 !important;
    min-height: calc(100vh - var(--ytd-masthead-height) - 56px);
  }
  #pageContent {
    padding: 0 !important;
  }
  .mobile-feed {
    min-height: calc(100vh - var(--ytd-masthead-height) - 56px);
  }
  #tsMusicHeaderBtn { display: flex !important; align-items: center; }
}
@media (min-width: 769px) {
  #tsMusicHeaderBtn { display: none !important; }
}