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

:root {
  /* Colors */
  --bg-primary: #09090b;
  --bg-secondary: #18181b;
  --bg-card: rgba(255, 255, 255, 0.03);
  --bg-card-hover: rgba(255, 255, 255, 0.06);
  --text-primary: #fafafa;
  --text-secondary: #a1a1aa;
  --text-muted: #71717a;
  --text-dim: #52525b;
  --accent: #a78bfa;
  --accent-dim: rgba(167, 139, 250, 0.12);
  --border: rgba(255, 255, 255, 0.06);
  --border-hover: rgba(255, 255, 255, 0.12);

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 12px;
  --space-lg: 16px;
  --space-xl: 24px;
  --space-2xl: 32px;
  --space-3xl: 48px;
  --space-4xl: 64px;
  --space-5xl: 96px;

  /* Typography */
  --font-sans: 'Inter', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
  --font-display: 'Space Grotesk', 'Outfit', 'Inter', sans-serif;
  --fs-xs: 12px;
  --fs-sm: 14px;
  --fs-base: 16px;
  --fs-md: 18px;
  --fs-lg: 20px;
  --fs-xl: 24px;
  --fs-2xl: 30px;
  --fs-3xl: 36px;
  --fs-4xl: 48px;
  --fs-5xl: 60px;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;
}

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

body {
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  display: block;
}

/* ===== Container ===== */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 48px;
}

@media (max-width: 768px) {
  .container {
    padding: 0 24px;
  }
}

/* ===== Navigation ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(9, 9, 11, 0.8);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition-base);
}

.nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 48px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-display);
  font-size: var(--fs-lg);
  font-weight: 400;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.nav-links {
  display: flex;
  gap: var(--space-2xl);
}

.nav-links a {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  transition: color var(--transition-fast);
  font-weight: 400;
}

.nav-links a:hover {
  color: var(--text-primary);
}

.nav-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: var(--space-sm);
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  z-index: 99;
  background: rgba(9, 9, 11, 0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  padding: var(--space-xl) 24px;
  flex-direction: column;
  gap: var(--space-lg);
  transform: translateY(-10px);
  opacity: 0;
  transition: var(--transition-base);
}

.mobile-menu.active {
  display: flex;
  transform: translateY(0);
  opacity: 1;
}

.mobile-menu a {
  font-size: var(--fs-base);
  color: var(--text-secondary);
  padding: var(--space-sm) 0;
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .nav-menu-btn {
    display: block;
  }
  .nav-inner {
    padding: 0 24px;
  }
}

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

.hero-bg-glow {
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(167, 139, 250, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  text-align: center;
  position: relative;
  z-index: 1;
}

.hero-tag {
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--accent);
  margin-bottom: var(--space-xl);
  font-weight: 500;
}

.hero-title {
  font-family: var(--font-display);
  font-size: var(--fs-5xl);
  font-weight: 300;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-2xl);
  color: var(--text-primary);
}

.text-accent {
  color: var(--accent);
}

.text-muted {
  color: var(--text-dim);
}

.hero-subtitle {
  font-size: var(--fs-md);
  color: var(--text-secondary);
  font-weight: 300;
  letter-spacing: 0.01em;
}

.hero-scroll {
  margin-top: var(--space-5xl);
}

.scroll-hint {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--fs-xs);
  color: var(--text-dim);
  transition: color var(--transition-base);
}

.scroll-hint:hover {
  color: var(--text-secondary);
}

.scroll-hint .icon-sm {
  width: 16px;
  height: 16px;
  animation: float 2s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(4px); }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: var(--fs-3xl);
  }
  .hero-subtitle {
    font-size: var(--fs-base);
  }
}

/* ===== Sections ===== */
.section {
  padding: var(--space-5xl) 0;
}

.section-alt {
  background: var(--bg-secondary);
}

.section-title {
  font-family: var(--font-display);
  font-size: var(--fs-3xl);
  font-weight: 300;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-md);
}

.section-desc {
  font-size: var(--fs-base);
  color: var(--text-secondary);
  font-weight: 300;
  margin-bottom: var(--space-4xl);
}

/* ===== Bento Grid ===== */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.bento-wide {
  grid-column: span 2;
}

.bento-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.bento-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(167, 139, 250, 0.2), transparent);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.bento-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  transform: translateY(-2px);
}

.bento-card:hover::before {
  opacity: 1;
}

.bento-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-dim);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-lg);
}

.bento-icon .icon {
  width: 20px;
  height: 20px;
  color: var(--accent);
}

.bento-card h3 {
  font-family: var(--font-display);
  font-size: var(--fs-lg);
  font-weight: 400;
  margin-bottom: var(--space-md);
  letter-spacing: -0.01em;
}

.bento-card p {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-lg);
}

.bento-tag {
  font-size: var(--fs-xs);
  color: var(--text-dim);
  background: rgba(255, 255, 255, 0.04);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
}

@media (max-width: 1024px) {
  .bento-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .bento-grid {
    grid-template-columns: 1fr;
  }
  .bento-wide {
    grid-column: span 1;
  }
}

/* ===== Stories ===== */
.stories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-lg);
}

.story-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  transition: all var(--transition-base);
  position: relative;
}

.story-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  transform: translateY(-2px);
}

.story-number {
  font-family: var(--font-display);
  font-size: var(--fs-4xl);
  font-weight: 300;
  color: var(--text-dim);
  opacity: 0.4;
  line-height: 1;
  margin-bottom: var(--space-xl);
}

.story-card h3 {
  font-family: var(--font-display);
  font-size: var(--fs-xl);
  font-weight: 400;
  margin-bottom: var(--space-md);
  letter-spacing: -0.01em;
}

.story-card p {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-lg);
}

.story-label {
  font-size: var(--fs-xs);
  color: var(--text-dim);
  font-weight: 400;
}

/* ===== Projects ===== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-lg);
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  transition: all var(--transition-base);
}

.project-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  transform: translateY(-2px);
}

.project-header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.project-icon {
  width: 24px;
  height: 24px;
  color: var(--accent);
  flex-shrink: 0;
}

.project-card h3 {
  font-family: var(--font-display);
  font-size: var(--fs-lg);
  font-weight: 400;
  letter-spacing: -0.01em;
}

.project-card p {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-lg);
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.project-tags span {
  font-size: var(--fs-xs);
  color: var(--text-dim);
  background: rgba(255, 255, 255, 0.04);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
}

/* ===== Awards ===== */
.awards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg);
}

.award-card {
  display: flex;
  align-items: flex-start;
  gap: var(--space-lg);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: all var(--transition-base);
}

.award-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.award-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  background: var(--accent-dim);
  border-radius: var(--radius-md);
}

.award-icon .icon {
  width: 18px;
  height: 18px;
  color: var(--accent);
}

.award-info h4 {
  font-size: var(--fs-sm);
  font-weight: 500;
  margin-bottom: 4px;
}

.award-meta {
  font-size: var(--fs-xs);
  color: var(--text-dim);
}

/* ===== Contact ===== */
.contact-section {
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
}

.contact-links {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
}

.contact-item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-md);
  font-size: var(--fs-base);
  color: var(--text-secondary);
  padding: var(--space-md) var(--space-xl);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

a.contact-item:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
}

.contact-item .icon {
  width: 18px;
  height: 18px;
}

/* ===== Footer ===== */
.footer {
  border-top: 1px solid var(--border);
  padding: var(--space-2xl) 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-text {
  font-size: var(--fs-xs);
  color: var(--text-dim);
}

/* ===== Animations ===== */
.anim-fade {
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 400ms ease, transform 400ms ease;
}

.anim-fade.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Utilities ===== */
.icon {
  width: 20px;
  height: 20px;
}

.icon-sm {
  width: 16px;
  height: 16px;
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--text-dim);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* Selection */
::selection {
  background: var(--accent-dim);
  color: var(--text-primary);
}