/* ====== RESET & BASE ====== */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: "Roboto", sans-serif;
  background-color: #181818;
  color: white;
  display: flex;
}

body.light-mode {
  background-color: #f9f9f9;
  color: #000;
}

button {
  background: none;
  border: none;
  cursor: pointer;
}

/* ====== HEADER ====== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 60px;
  background: #212121;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  border-bottom: 1px solid #383838;
  z-index: 1000;
}

.header.light-mode {
  background: #fff;
  border-bottom: 1px solid #e5e5e5;
}

.left-section,
.right-section {
  display: flex;
  align-items: center;
  gap: 20px;
}

.middle-section {
  flex: 1;
  display: flex;
  align-items: center;
  max-width: 600px;
  margin: 0 30px;
}

.search-wrapper {
  display: flex;
  align-items: center;
  border: 1px solid #555;
  border-radius: 50px;
  overflow: hidden;
  flex: 1;
}

.search-bar {
  flex: 1;
  padding: 8px 12px;
  border: none;
  font-size: 14px;
  background-color: #303030;
  color: white;
}

.search-bar::placeholder {
  color: #aaa;
}

.search-button {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 16px;
  height: 100%;
  background-color: #303030;
  border-left: 1px solid #555;
}

.search-icon {
  height: 20px;
  filter: brightness(0) invert(1);
}

body.light-mode .search-wrapper {
  border: 1px solid #ccc;
  background: #fff;
}

body.light-mode .search-bar {
  background: #fff;
  color: black;
}

body.light-mode .search-button {
  background: #f0f0f0;
  border-left: 1px solid #ccc;
}

body.light-mode .search-icon {
  filter: none;
}

.voice-button {
  height: 36px;
  width: 36px;
  border-radius: 50%;
  background: #303030;
  margin-left: 10px;
}

.voice-icon,
.upload,
.ytapp,
.notification {
  height: 22px;
}

.channel-logo {
  height: 34px;
  border-radius: 50%;
}

.dark-toggle {
  font-size: 18px;
}

/* Logo Styling */
.bars {
  height: 24px;
  cursor: pointer;
}

.ytlogo {
  height: 22px;
  margin-left: 10px;
}

/* ====== SIDEBAR ====== */
.sidebar {
  position: fixed;
  top: 60px;
  left: 0;
  width: 80px;
  height: 100vh;
  background-color: #212121;
  border-right: 1px solid #383838;
  overflow: hidden;
  transition: width 0.3s;
  z-index: 999;
}

.sidebar.expanded {
  width: 220px;
}

.sidebar.light-mode {
  background-color: #fff;
  border-right: 1px solid #ccc;
}

.sidebar-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 16px;
  cursor: pointer;
  transition: background 0.2s;
}

.sidebar-item:hover {
  background-color: #383838;
}

.sidebar.light-mode .sidebar-item:hover {
  background-color: #f0f0f0;
}

.sidebar-item img {
  width: 24px;
}

.sidebar-item p {
  font-size: 14px;
  margin: 0;
  opacity: 0;
  white-space: nowrap;
  transition: opacity 0.3s;
}

.sidebar.expanded .sidebar-item p {
  opacity: 1;
}

.sidebar-item.active {
  background-color: #383838;
}

.sidebar.light-mode .sidebar-item.active {
  background-color: #e0e0e0;
}

/* ====== MAIN CONTENT ====== */
.content-wrapper {
  display: flex;
  width: 100%;
}

.main-content {
  margin-top: 60px;
  margin-left: 80px;
  padding: 20px;
  width: calc(100% - 80px);
  transition: margin-left 0.3s, width 0.3s;
}

.sidebar.expanded ~ .main-content {
  margin-left: 220px;
  width: calc(100% - 220px);
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  padding: 20px;
}

/* ====== VIDEO CARD ====== */
.video-preview {
  background: #212121;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 0 8px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s;
}

.video-preview:hover {
  transform: translateY(-4px);
}

body.light-mode .video-preview {
  background: #fff;
}

.thumbnail {
  width: 100%;
  display: block;
}

.video-details {
  display: flex;
  padding: 10px;
}

.channel-picture {
  margin-right: 12px;
}

.profile-picture {
  width: 40px;
  height: 40px;
  border-radius: 50%;
}

.video-info {
  flex: 1;
}

.video-title {
  font-size: 14px;
  font-weight: 500;
  margin: 0 0 6px;
}

.channel-name,
.video-stats {
  font-size: 12px;
  color: #aaa;
  margin: 0;
}

body.light-mode .channel-name,
body.light-mode .video-stats {
  color: #606060;
}

/* ====== MODAL ====== */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-content {
  position: relative;
  background: #212121;
  border-radius: 8px;
  padding: 20px;
  text-align: center;
}

body.light-mode .modal-content {
  background: #fff;
}

.modal-content iframe {
  width: 640px;
  height: 360px;
}

.close-btn {
  position: absolute;
  top: 8px;
  right: 12px;
  font-size: 28px;
  cursor: pointer;
}

.watch-later-btn {
  margin-top: 12px;
  padding: 8px 16px;
  font-size: 14px;
  background: #383838;
  border: none;
  color: white;
  cursor: pointer;
}

body.light-mode .watch-later-btn {
  background: #eee;
  color: black;
}

.hidden {
  display: none;
}

/* ====== WATCH LATER CARD ====== */
.video-preview.watch-later-style {
  border: 1px solid #444;
  padding: 10px;
  flex-direction: column;
  display: flex;
  transition: transform 0.2s;
}

.video-preview.watch-later-style:hover {
  transform: scale(1.01);
}

.remove-btn {
  margin-top: 8px;
  padding: 6px 12px;
  background: #ff4d4d;
  color: white;
  font-size: 13px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: background 0.3s ease;
}

.remove-btn:hover {
  background: #e60000;
}

body.light-mode .remove-btn {
  background: #c62828;
}

body.light-mode .remove-btn:hover {
  background: #b71c1c;
}

/* ====== RESPONSIVE ====== */
@media (max-width: 768px) {
  .sidebar {
    width: 60px;
  }

  .sidebar.expanded {
    width: 200px;
  }

  .main-content {
    margin-left: 60px;
    padding: 10px;
    width: calc(100% - 60px);
  }

  .middle-section {
    margin: 0 10px;
  }

  .modal-content iframe {
    width: 100%;
    height: auto;
  }

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

@media (max-width: 500px) {
  .grid {
    grid-template-columns: repeat(1, 1fr);
  }
}