@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;600;800&display=swap');

:root {
  /* Material Design 3 - Dark (WCAG AA Compliant) */
  --bg-color: #1c1b1f;
  --text-color: #e6e1e5;
  --text-muted: #cac4d0;
  --accent-primary: #d0bcff;
  --accent-secondary: #b6c4ff;
  --on-accent: #381e72; /* Dark text for light accent */
  --glass-bg: #2b2930;
  --glass-border: #49454f;
  --card-bg: #2b2930;
  --header-bg: rgba(28, 27, 31, 0.9);
  --card-shadow: rgba(0, 0, 0, 0.3);
  --font-main: 'Outfit', sans-serif;
  --radius-lg: 1.75rem;
  --radius-md: 1rem;
  --gradient-bg: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
}

[data-theme="light"] {
  /* Material Design 3 - Light (WCAG AA Compliant) */
  --bg-color: #cbd5e1;
  --text-color: #334155; /* Dark Gray instead of Black */
  --text-muted: #475569;
  --accent-primary: #6750a4;
  --accent-secondary: #4355b9;
  --on-accent: #ffffff; /* White text for dark accent */
  --glass-bg: #f8fafc;
  --glass-border: #94a3b8;
  --card-bg: #f8fafc;
  --header-bg: rgba(229, 231, 235, 0.9);
  --card-shadow: rgba(15, 23, 42, 0.1);
}

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

body {
  font-family: var(--font-main);
  background-color: var(--bg-color);
  color: var(--text-color);
  min-height: 100vh;
  line-height: 1.6;
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Background Blobs */
.blob {
  position: fixed;
  width: 600px;
  height: 600px;
  background: var(--gradient-bg);
  filter: blur(100px);
  border-radius: 50%;
  z-index: -1;
  opacity: 0.1;
  animation: float 25s infinite alternate;
}

.blob-1 { top: -200px; left: -200px; }
.blob-2 { bottom: -200px; right: -200px; animation-delay: -12s; }

@keyframes float {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(150px, 80px) scale(1.1); }
  100% { transform: translate(-80px, 150px) scale(0.9); }
}

/* Header */
.site-header {
  padding: 1rem 0;
  border-bottom: 1px solid var(--glass-border);
  background: var(--header-bg);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.theme-toggle {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-color);
  transition: all 0.3s ease;
}

.theme-toggle:hover {
  background: var(--glass-border);
  border-color: var(--accent-primary);
  transform: rotate(15deg);
}

.theme-toggle svg {
  width: 20px;
  height: 20px;
  position: absolute;
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Toggle Logic with opacity/transform */
[data-theme="light"] .sun-icon { opacity: 0; transform: scale(0) rotate(90deg); }
[data-theme="dark"] .moon-icon { opacity: 0; transform: scale(0) rotate(-90deg); }
:root:not([data-theme="light"]) .moon-icon { opacity: 0; transform: scale(0) rotate(-90deg); }

.nav-button {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.2rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 2rem;
  color: var(--text-color);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  transition: all 0.3s ease;
}

.nav-button:hover {
  background: var(--glass-border);
  border-color: var(--accent-primary);
  transform: translateY(-1px);
}

.icon-external {
  width: 14px;
  height: 14px;
  opacity: 0.7;
}

.site-title {
  font-size: 1.5rem;
  font-weight: 800;
  text-decoration: none;
  color: var(--accent-primary);
  letter-spacing: -0.02em;
}

/* Hero Section */
.hero {
  text-align: center;
  padding: 6rem 0;
  animation: fadeIn 1s ease-out;
}

h1 {
  font-size: 4rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
  background: var(--gradient-bg);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.02em;
}

.hero p {
  font-size: 1.25rem;
  color: rgba(255, 255, 255, 0.6);
  max-width: 700px;
  margin: 0 auto;
  font-weight: 300;
}

/* Controls (Search & Sort) */
.controls {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 1.5rem;
  margin-top: 2.5rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

.search-box input,
.sort-box select {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 0.8rem 1.5rem;
  color: var(--text-color);
  font-family: var(--font-main);
  font-size: 0.95rem;
  outline: none;
  transition: all 0.3s ease;
}

.search-box input {
  min-width: 300px;
}

.search-box input::placeholder {
  color: var(--text-muted);
}

.search-box input:focus,
.sort-box select:focus {
  border-color: var(--accent-primary);
  background-color: var(--glass-bg);
  box-shadow: 0 0 20px rgba(208, 188, 255, 0.1);
}

.sort-box select {
  cursor: pointer;
  appearance: none;
  padding-right: 3rem;
  background-repeat: no-repeat;
  background-position: right 1rem center;
  background-size: 1.2rem;
}

[data-theme="dark"] .sort-box select,
:root:not([data-theme="light"]) .sort-box select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23e6e1e5'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
}

[data-theme="light"] .sort-box select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23334155'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
}

/* Post Grid */
.post-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 2.5rem;
  margin-top: 0; /* Adjusted since controls have margin */
  padding-bottom: 6rem;
}

.post-card {
  position: relative;
  background: var(--card-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
}

.post-card:hover {
  transform: translateY(-8px);
  border-color: var(--accent-primary);
  box-shadow: 0 12px 30px -10px var(--card-shadow);
}

.post-card-image {
  position: relative;
  aspect-ratio: 16/9;
  display: block;
}

.post-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.play-overlay {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(0,0,0,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s;
}

.post-card:hover .play-overlay { opacity: 1; }

.play-overlay svg {
  width: 60px;
  height: 60px;
  color: white;
}

.post-card-content {
  padding: 1.5rem;
  flex-grow: 1;
}

.post-date {
  font-size: 0.8rem;
  color: var(--accent-primary);
  text-transform: uppercase;
  font-weight: 600;
  letter-spacing: 0.05em;
  display: block;
  margin-bottom: 0.5rem;
}

.post-card-title {
  font-size: 1.25rem;
  margin-bottom: 1rem;
}

.post-card-title a {
  text-decoration: none;
  color: var(--text-color);
  transition: color 0.3s;
}

.post-card-title a:hover { color: var(--accent-primary); }

.stretched-link::after {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 1;
  content: "";
}

.post-excerpt {
  font-size: 0.95rem;
  color: var(--text-muted);
  font-weight: 300;
}

/* Post Page */
.post {
  max-width: 900px;
  margin: 4rem auto;
  animation: fadeIn 0.8s ease-out;
}

.post-header {
  text-align: center;
  margin-bottom: 3rem;
}

.post-title {
  font-size: 3rem;
  margin-top: 1rem;
}

.video-container {
  position: relative;
  padding-bottom: 56.25%; /* 16:9 */
  height: 0;
  overflow: hidden;
  border-radius: var(--radius-lg);
  margin-bottom: 3rem;
  box-shadow: 0 20px 50px -10px var(--card-shadow);
  border: 1px solid var(--glass-border);
}

.video-container iframe {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
}

.post-content {
  font-size: 1.1rem;
  color: var(--text-color);
  opacity: 0.9;
  margin-bottom: 4rem;
}

.post-footer {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  margin-top: 2rem;
}

.post-footer .cta-button {
  flex: 1;
  max-width: 250px;
  text-align: center;
  white-space: nowrap;
}

/* Common UI */
.badge {
  display: inline-block;
  padding: 0.5rem 1rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  border-radius: 2rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent-primary);
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.cta-button {
  display: inline-block;
  padding: 1rem 2.5rem;
  background: var(--gradient-bg);
  color: var(--on-accent);
  text-decoration: none;
  border-radius: 3rem;
  font-weight: 600;
  transition: all 0.3s ease;
  box-shadow: 0 10px 20px -5px rgba(99, 102, 241, 0.5);
}

.cta-button.secondary {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-color);
  box-shadow: none;
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 30px -10px rgba(99, 102, 241, 0.6);
}

.site-footer {
  padding: 1.5rem 0;
  text-align: center;
  border-top: 1px solid var(--glass-border);
  color: var(--text-muted);
  font-size: 0.9rem;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 768px) {
  h1 { font-size: 2.5rem; }
  .post-title { font-size: 2rem; }
  .post-grid { grid-template-columns: 1fr; }
  
  .controls {
    flex-direction: column;
    align-items: stretch;
  }
  
  .search-box, .sort-box, .search-box input, .sort-box select {
    width: 100%;
    min-width: 0;
  }
}