/* ============================================================
   VIEWPOINT PORTFOLIO — Design System
   Theme: Dark Premium + Purple Accents
   ============================================================ */

/* === Google Fonts === */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@300;400;500;600;700;800;900&display=swap');

/* === CSS Custom Properties === */
:root {
  /* Colors */
  --bg-primary: #06060b;
  --bg-secondary: #0d0d14;
  --bg-card: rgba(15, 15, 25, 0.7);
  --bg-card-hover: rgba(25, 20, 45, 0.85);
  --bg-glass: rgba(15, 12, 30, 0.6);
  --bg-overlay: rgba(6, 6, 11, 0.92);

  --purple-100: #ede9fe;
  --purple-200: #ddd6fe;
  --purple-300: #c4b5fd;
  --purple-400: #a78bfa;
  --purple-500: #8B5CF6;
  --purple-600: #7C3AED;
  --purple-700: #6D28D9;
  --purple-800: #5B21B6;
  --purple-900: #4C1D95;
  --purple-glow: rgba(139, 92, 246, 0.15);
  --purple-glow-strong: rgba(139, 92, 246, 0.35);

  --text-primary: #f1f0f5;
  --text-secondary: #a09cb2;
  --text-muted: #5e5a6e;

  --border-subtle: rgba(139, 92, 246, 0.08);
  --border-hover: rgba(139, 92, 246, 0.25);

  /* Typography */
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-heading: 'Outfit', 'Inter', sans-serif;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  /* Borders */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Shadows */
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.3), 0 0 0 1px var(--border-subtle);
  --shadow-card-hover: 0 8px 40px rgba(139, 92, 246, 0.12), 0 0 0 1px var(--border-hover);
  --shadow-modal: 0 24px 80px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 40px var(--purple-glow), 0 0 80px var(--purple-glow);

  /* Layout */
  --max-width: 1400px;
  --header-height: 72px;
}

/* === Reset & Base === */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

/* === Scrollbar === */
::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: var(--purple-800);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--purple-600);
}

/* === Ambient Background === */
.ambient-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.ambient-bg::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(ellipse at 20% 20%, var(--purple-glow) 0%, transparent 50%),
              radial-gradient(ellipse at 80% 80%, rgba(109, 40, 217, 0.06) 0%, transparent 50%),
              radial-gradient(ellipse at 50% 50%, rgba(92, 36, 182, 0.03) 0%, transparent 70%);
  animation: ambientMove 20s ease-in-out infinite alternate;
}

@keyframes ambientMove {
  0% { transform: translate(0, 0) rotate(0deg); }
  33% { transform: translate(2%, -1%) rotate(1deg); }
  66% { transform: translate(-1%, 2%) rotate(-0.5deg); }
  100% { transform: translate(1%, -2%) rotate(0.5deg); }
}

/* Grain texture overlay */
.ambient-bg::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0.015;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='1'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 128px 128px;
}

/* === Header === */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 var(--space-xl);
  background: rgba(6, 6, 11, 0.5);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border-bottom: 1px solid var(--border-subtle);
  transition: var(--transition-base);
}

.site-header.scrolled {
  background: rgba(6, 6, 11, 0.85);
  border-bottom-color: var(--border-hover);
}

.site-header.header-hidden {
  transform: translateY(-100%);
}

.header-content {
  width: 100%;
  max-width: var(--max-width);
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
  color: var(--text-primary);
}

.logo img {
  height: 18px;
  width: auto;
  filter: brightness(1.1);
}

.logo-text {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--purple-300) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.header-tagline {
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--text-muted);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

/* === Hero Section === */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-video-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.15;
  filter: blur(2px) saturate(0.6);
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, 
    rgba(6, 6, 11, 0.3) 0%, 
    rgba(6, 6, 11, 0.1) 40%,
    rgba(6, 6, 11, 0.6) 80%, 
    var(--bg-primary) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
  padding: 0 var(--space-xl);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-xs) var(--space-md);
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--purple-300);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--space-lg);
  backdrop-filter: blur(12px);
  animation: fadeInUp 0.8s ease-out;
}

.hero-badge .dot {
  width: 6px;
  height: 6px;
  background: var(--purple-500);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 7vw, 5rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-lg);
  animation: fadeInUp 0.8s ease-out 0.15s both;
}

.hero h1 .highlight {
  background: linear-gradient(135deg, var(--purple-400) 0%, var(--purple-600) 50%, var(--purple-400) 100%);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradientShift 4s ease-in-out infinite;
}

@keyframes gradientShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.hero-description {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto var(--space-2xl);
  line-height: 1.7;
  animation: fadeInUp 0.8s ease-out 0.3s both;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  background: linear-gradient(135deg, var(--purple-600), var(--purple-700));
  color: white;
  text-decoration: none;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.9375rem;
  letter-spacing: 0.02em;
  border: none;
  cursor: pointer;
  transition: var(--transition-base);
  animation: fadeInUp 0.8s ease-out 0.45s both;
  position: relative;
  overflow: hidden;
}

.hero-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--purple-500), var(--purple-600));
  opacity: 0;
  transition: var(--transition-base);
}

.hero-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(139, 92, 246, 0.35);
}

.hero-cta:hover::before {
  opacity: 1;
}

.hero-cta span {
  position: relative;
  z-index: 1;
}

.hero-cta svg {
  position: relative;
  z-index: 1;
  transition: var(--transition-base);
}

.hero-cta:hover svg {
  transform: translateY(3px);
}

.hero-scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  color: var(--text-muted);
  font-size: 0.6875rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  animation: fadeIn 1s ease-out 1s both;
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--purple-500), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; height: 40px; }
  50% { opacity: 1; height: 55px; }
}

/* === Section Shared === */
.section {
  position: relative;
  z-index: 1;
  padding: var(--space-4xl) var(--space-xl);
}

.section-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--purple-400);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: var(--space-md);
}

.section-label::before,
.section-label::after {
  content: '';
  width: 24px;
  height: 1px;
  background: var(--purple-700);
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1.0625rem;
  margin-top: var(--space-md);
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

/* === Stats Bar === */
.stats-bar {
  display: flex;
  justify-content: center;
  gap: var(--space-3xl);
  padding: var(--space-2xl) 0;
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
}

.stat-item {
  text-align: center;
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--text-primary), var(--purple-300));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-top: var(--space-xs);
}

/* === Category Filter === */
.filter-bar {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-3xl);
  flex-wrap: wrap;
}

.filter-btn {
  padding: var(--space-sm) var(--space-lg);
  background: transparent;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition-base);
  position: relative;
  overflow: hidden;
}

.filter-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--purple-600), var(--purple-700));
  opacity: 0;
  transition: var(--transition-base);
  border-radius: inherit;
}

.filter-btn:hover {
  border-color: var(--purple-600);
  color: var(--text-primary);
}

.filter-btn.active {
  border-color: var(--purple-600);
  color: white;
  background: linear-gradient(135deg, var(--purple-600), var(--purple-700));
  box-shadow: 0 4px 16px rgba(139, 92, 246, 0.25);
}

.filter-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 20px;
  padding: 0 6px;
  background: rgba(139, 92, 246, 0.15);
  border-radius: var(--radius-full);
  font-size: 0.6875rem;
  font-weight: 600;
  margin-left: var(--space-xs);
  color: var(--purple-300);
}

.filter-btn.active .filter-count {
  background: rgba(255, 255, 255, 0.2);
  color: white;
}

/* === Projects Grid === */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
  gap: var(--space-xl);
}

/* === Project Card === */
.project-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  cursor: pointer;
  transition: var(--transition-base);
  box-shadow: var(--shadow-card);
  opacity: 0;
  transform: translateY(20px);
  animation: cardReveal 0.6s ease-out forwards;
}

.project-card.hidden {
  display: none;
}

.project-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-card-hover);
}

@keyframes cardReveal {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.card-thumbnail {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--bg-secondary);
}

.card-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-slow);
  filter: brightness(0.85) saturate(0.9);
}

.project-card:hover .card-thumbnail img {
  transform: scale(1.06);
  filter: brightness(1) saturate(1);
}

.card-play-icon {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.9);
  width: 60px;
  height: 60px;
  background: rgba(139, 92, 246, 0.85);
  backdrop-filter: blur(8px);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition-base);
  box-shadow: 0 4px 24px rgba(139, 92, 246, 0.4);
}

.project-card:hover .card-play-icon {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

.card-play-icon svg {
  width: 22px;
  height: 22px;
  fill: white;
  margin-left: 3px;
}

.card-category-badge {
  position: absolute;
  top: var(--space-md);
  left: var(--space-md);
  padding: 4px 12px;
  background: rgba(6, 6, 11, 0.7);
  backdrop-filter: blur(8px);
  border-radius: var(--radius-full);
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--purple-300);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border: 1px solid rgba(139, 92, 246, 0.15);
}

.card-video-count {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  padding: 4px 10px;
  background: rgba(6, 6, 11, 0.7);
  backdrop-filter: blur(8px);
  border-radius: var(--radius-full);
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 4px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.card-video-count svg {
  width: 12px;
  height: 12px;
  opacity: 0.7;
}

.card-info {
  padding: var(--space-lg);
}

.card-title {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
  line-height: 1.3;
}

.card-meta {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

/* === Video Modal === */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: var(--bg-overlay);
  backdrop-filter: blur(16px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-xl);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-base);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-container {
  width: 100%;
  max-width: 1100px;
  max-height: 90vh;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-modal);
  transform: scale(0.95) translateY(20px);
  transition: var(--transition-spring);
  display: flex;
  flex-direction: column;
}

.modal-overlay.active .modal-container {
  transform: scale(1) translateY(0);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg) var(--space-xl);
  border-bottom: 1px solid var(--border-subtle);
  flex-shrink: 0;
}

.modal-title-area {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.modal-project-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
}

.modal-project-category {
  font-size: 0.75rem;
  color: var(--purple-400);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 500;
}

.modal-close {
  width: 40px;
  height: 40px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
  flex-shrink: 0;
}

.modal-close:hover {
  border-color: var(--purple-600);
  color: var(--text-primary);
  background: var(--purple-glow);
}

.modal-close svg {
  width: 18px;
  height: 18px;
}

.modal-body {
  overflow-y: auto;
  flex: 1;
}

.modal-video-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #000;
}

.modal-video-wrapper video {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

/* Video selector tabs (for multi-video projects) */
.video-tabs {
  display: flex;
  gap: var(--space-xs);
  padding: var(--space-md) var(--space-xl);
  border-top: 1px solid var(--border-subtle);
  overflow-x: auto;
  flex-shrink: 0;
  scrollbar-width: none;
}

.video-tabs::-webkit-scrollbar {
  display: none;
}

.video-tab {
  padding: var(--space-sm) var(--space-md);
  background: transparent;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition-fast);
  white-space: nowrap;
  flex-shrink: 0;
}

.video-tab:hover {
  border-color: var(--purple-600);
  color: var(--text-primary);
}

.video-tab.active {
  background: var(--purple-700);
  border-color: var(--purple-600);
  color: white;
}

/* === Footer === */
.site-footer {
  position: relative;
  z-index: 1;
  padding: var(--space-3xl) var(--space-xl);
  border-top: 1px solid var(--border-subtle);
}

.footer-content {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.footer-logo img {
  height: 28px;
  width: auto;
  opacity: 0.7;
}

.footer-logo-text {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.footer-copy {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

/* === Animations === */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-16px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Intersection Observer reveal */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease-out, transform 0.7s ease-out;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Staggered card animations */
.project-card:nth-child(1) { animation-delay: 0.05s; }
.project-card:nth-child(2) { animation-delay: 0.1s; }
.project-card:nth-child(3) { animation-delay: 0.15s; }
.project-card:nth-child(4) { animation-delay: 0.2s; }
.project-card:nth-child(5) { animation-delay: 0.25s; }
.project-card:nth-child(6) { animation-delay: 0.3s; }
.project-card:nth-child(7) { animation-delay: 0.35s; }
.project-card:nth-child(8) { animation-delay: 0.4s; }
.project-card:nth-child(9) { animation-delay: 0.45s; }

/* === Responsive === */
@media (max-width: 1024px) {
  .projects-grid {
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--space-lg);
  }
  
  .stats-bar {
    gap: var(--space-xl);
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 60px;
  }
  
  .section {
    padding: var(--space-3xl) var(--space-md);
  }
  
  .projects-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
  
  .hero h1 {
    font-size: clamp(2rem, 8vw, 3rem);
  }
  
  .hero-description {
    font-size: 1rem;
  }
  
  .stats-bar {
    gap: var(--space-lg);
  }
  
  .stat-number {
    font-size: 2rem;
  }
  
  .filter-bar {
    gap: 6px;
  }
  
  .filter-btn {
    padding: var(--space-xs) var(--space-md);
    font-size: 0.8125rem;
  }
  
  .modal-overlay {
    padding: 0;
  }
  
  .modal-container {
    max-height: 100vh;
    border-radius: 0;
    height: 100vh;
  }
  
  .modal-header {
    padding: var(--space-md);
  }
  
  .video-tabs {
    padding: var(--space-sm) var(--space-md);
  }
  
  .header-tagline {
    display: none;
  }
  
  .footer-content {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .projects-grid {
    grid-template-columns: 1fr;
  }
  
  .hero-badge {
    font-size: 0.6875rem;
  }
  
  .hero-cta {
    width: 100%;
    justify-content: center;
  }
}

/* === Loading States === */
.skeleton {
  background: linear-gradient(90deg, 
    var(--bg-card) 25%, 
    rgba(139, 92, 246, 0.05) 50%, 
    var(--bg-card) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* Video loading spinner */
.video-loader {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 48px;
  height: 48px;
  border: 3px solid var(--border-subtle);
  border-top-color: var(--purple-500);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: translate(-50%, -50%) rotate(360deg); }
}

/* === No Results === */
.no-results {
  text-align: center;
  padding: var(--space-4xl) var(--space-xl);
  color: var(--text-muted);
  display: none;
}

.no-results.visible {
  display: block;
}

.no-results svg {
  width: 48px;
  height: 48px;
  margin-bottom: var(--space-md);
  opacity: 0.4;
}

.no-results p {
  font-size: 1rem;
}