/* ===== CSS Variables & Reset ===== */
:root {
  /* Colors - Light Theme */
  --primary: #3776ab;
  --primary-dark: #2d5f88;
  --primary-light: #4b8bbe;
  --secondary: #ffd43b;
  --secondary-dark: #f0c419;
  --accent: #306998;

  /* Backgrounds */
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  --bg-dark: #0f172a;

  /* Text */
  --text-primary: #1e293b;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --text-inverse: #ffffff;

  /* Borders */
  --border-color: #e2e8f0;
  --border-light: #f1f5f9;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1),
    0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1),
    0 8px 10px -6px rgb(0 0 0 / 0.1);

  /* 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;

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

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

  /* Typography */
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    sans-serif;
  --font-mono: "Fira Code", "Monaco", "Consolas", monospace;
}

/* Dark Theme */
[data-theme="dark"] {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #334155;
  --bg-dark: #020617;

  --text-primary: #f1f5f9;
  --text-secondary: #cbd5e1;
  --text-muted: #64748b;
  --text-inverse: #0f172a;

  --border-color: #334155;
  --border-light: #1e293b;

  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.3);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.4), 0 2px 4px -2px rgb(0 0 0 / 0.3);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.4),
    0 4px 6px -4px rgb(0 0 0 / 0.3);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.5),
    0 8px 10px -6px rgb(0 0 0 / 0.4);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--primary-dark);
}

img {
  max-width: 100%;
  height: auto;
}

ul {
  list-style: none;
}

/* ===== Container ===== */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* ===== Section ===== */
.section {
  padding: var(--space-3xl) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.section-badge {
  display: inline-block;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  color: white;
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

.section-action {
  text-align: center;
  margin-top: var(--space-2xl);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-lg);
  font-weight: 600;
  font-size: 0.9375rem;
  cursor: pointer;
  transition: all var(--transition-base);
  border: 2px solid transparent;
  text-decoration: none;
}

.btn-sm {
  padding: var(--space-xs) var(--space-md);
  font-size: 0.875rem;
  border-radius: var(--radius-md);
}

.btn-lg {
  padding: var(--space-md) var(--space-xl);
  font-size: 1rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  color: white;
  border-color: var(--primary);
}

.btn-primary:hover {
  background: linear-gradient(
    135deg,
    var(--primary-dark) 0%,
    var(--primary) 100%
  );
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: white;
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--border-color);
}

.btn-outline:hover {
  background: var(--bg-secondary);
  border-color: var(--primary);
  color: var(--primary);
}

.btn-white {
  background: white;
  color: var(--primary);
  border-color: white;
}

.btn-white:hover {
  background: var(--bg-secondary);
  transform: translateY(-2px);
  color: var(--primary);
}

.btn-outline-white {
  background: transparent;
  color: white;
  border-color: rgba(255, 255, 255, 0.5);
}

.btn-outline-white:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: white;
  color: white;
}

/* ===== Navigation ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: #1a1a2e;
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  transition: all var(--transition-base);
}

[data-theme="dark"] .navbar {
  background: rgba(2, 6, 23, 0.95);
}

.navbar.scrolled {
  box-shadow: var(--shadow-md);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-md) var(--space-lg);
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  text-decoration: none;
  color: white;
  font-weight: 700;
  font-size: 1.1rem;
  transition: opacity 0.3s ease;
}

.nav-logo:hover {
  opacity: 0.9;
  color: white;
}

.nav-logo img {
  height: 40px;
  width: auto;
  border-radius: 4px;
}

.nav-logo span {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  white-space: nowrap;
  color: white;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.nav-link {
  padding: var(--space-sm) var(--space-md);
  color: rgba(255, 255, 255, 0.8);
  font-weight: 500;
  font-size: 0.9rem;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: white;
  background: rgba(255, 255, 255, 0.1);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.1);
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.theme-toggle:hover {
  background: rgba(255, 255, 255, 0.2);
  color: white;
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: none;
  background: transparent;
  cursor: pointer;
}

.hamburger {
  display: block;
  width: 24px;
  height: 2px;
  background: white;
  position: relative;
  transition: all var(--transition-fast);
}

.hamburger::before,
.hamburger::after {
  content: "";
  position: absolute;
  left: 0;
  width: 24px;
  height: 2px;
  background: white;
  transition: all var(--transition-fast);
}

.hamburger::before {
  top: -8px;
}

.hamburger::after {
  top: 8px;
}

/* ===== Hero Section ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: var(--space-2xl);
  padding: calc(80px + var(--space-2xl)) var(--space-lg) var(--space-2xl);
  max-width: 1200px;
  margin: 0 auto;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(
      circle at 30% 20%,
      rgba(55, 118, 171, 0.1) 0%,
      transparent 50%
    ),
    radial-gradient(
      circle at 70% 80%,
      rgba(255, 212, 59, 0.1) 0%,
      transparent 50%
    );
  z-index: -1;
}

.hero-content {
  max-width: 600px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  background: var(--bg-secondary);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
  border: 1px solid var(--border-color);
}

.hero-badge i {
  color: var(--primary);
  font-size: 1rem;
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: var(--space-lg);
  color: var(--text-primary);
}

.gradient-text {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
}

.hero-stats {
  display: flex;
  gap: var(--space-xl);
}

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

.stat-number {
  display: block;
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--primary);
}

.stat-label {
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* Code Window */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.code-window {
  background: var(--bg-dark);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  max-width: 500px;
  width: 100%;
}

.code-header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md);
  background: rgba(0, 0, 0, 0.3);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.dot.red {
  background: #ff5f57;
}
.dot.yellow {
  background: #febc2e;
}
.dot.green {
  background: #28c840;
}

.code-title {
  margin-left: auto;
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.5);
  font-family: var(--font-mono);
}

.code-content {
  padding: var(--space-lg);
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.7;
  color: #e2e8f0;
  margin: 0;
}

.code-content .keyword {
  color: #c792ea;
}
.code-content .class-name {
  color: #ffcb6b;
}
.code-content .function {
  color: #82aaff;
}
.code-content .param {
  color: #f07178;
}
.code-content .string {
  color: #c3e88d;
}
.code-content .builtin {
  color: #89ddff;
}

/* ===== Announcement Banner ===== */
.announcement {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  padding: var(--space-md) 0;
}

.announcement-content {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

.announcement-icon {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
}

.announcement-text {
  color: white;
  font-size: 0.9375rem;
}

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

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

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}

.feature-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.5rem;
  margin-bottom: var(--space-lg);
}

.feature-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

/* ===== Meetups Grid ===== */
.meetups-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--space-lg);
}

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

.meetup-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}

.meetup-number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary);
  opacity: 0.3;
  line-height: 1;
}

.meetup-content {
  flex: 1;
}

.meetup-content h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
}

.meetup-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
  font-size: 0.875rem;
  color: var (--text-muted);
}

.meetup-meta span {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.meetup-talks {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.talk-badge {
  background: var(--bg-tertiary);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.meetup-link {
  width: 40px;
  height: 40px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: all var(--transition-fast);
}

.meetup-card:hover .meetup-link {
  background: var(--primary);
  color: white;
}

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

.platform-card {
  background: var(--bg-secondary);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-color);
  padding: var(--space-xl);
  text-align: center;
  transition: all var(--transition-base);
  color: var(--text-primary);
}

.platform-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  color: var(--text-primary);
}

.platform-card.facebook:hover {
  border-color: #1877f2;
}
.platform-card.meetup:hover {
  border-color: #f64060;
}
.platform-card.github:hover {
  border-color: #333;
}
.platform-card.youtube:hover {
  border-color: #ff0000;
}
.platform-card.twitter:hover {
  border-color: #1da1f2;
}
.platform-card.discord:hover {
  border-color: #5865f2;
}

.platform-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  margin: 0 auto var(--space-lg);
}

.platform-card.facebook .platform-icon {
  background: #1877f2;
  color: white;
}
.platform-card.meetup .platform-icon {
  background: #f64060;
  color: white;
}
.platform-card.github .platform-icon {
  background: #333;
  color: white;
}
.platform-card.youtube .platform-icon {
  background: #ff0000;
  color: white;
}
.platform-card.twitter .platform-icon {
  background: #000;
  color: white;
}
.platform-card.discord .platform-icon {
  background: #5865f2;
  color: white;
}

.platform-card h3 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.platform-card p {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-bottom: var(--space-md);
}

.platform-action {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  color: var(--primary);
  font-weight: 600;
  font-size: 0.875rem;
}

/* ===== CTA Section ===== */
.cta {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  text-align: center;
  color: white;
}

.cta-content {
  max-width: 700px;
  margin: 0 auto;
  padding: var(--space-2xl);
}

.cta h2 {
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 800;
  margin-bottom: var(--space-md);
}

.cta p {
  font-size: 1.125rem;
  opacity: 0.9;
  margin-bottom: var(--space-xl);
}

.cta-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-md);
}

/* ===== Footer ===== */
.footer {
  background: var(--bg-dark);
  color: var(--text-inverse);
  padding: var(--space-3xl) 0 var(--space-xl);
}

[data-theme="dark"] .footer {
  background: #020617;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.7);
  margin: var(--space-md) 0;
  font-size: 0.9375rem;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 1rem;
}

.footer-logo img {
  height: 36px;
  width: auto;
  border-radius: 4px;
}

.footer-logo span {
  font-size: 0.95rem;
  font-weight: 600;
}

.footer-social {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

.footer-social a {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  transition: all var(--transition-fast);
}

.footer-social a:hover {
  background: var(--primary);
  transform: translateY(-2px);
}

.footer-links h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: var(--space-lg);
  color: white;
}

.footer-links ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9375rem;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: white;
}

.footer-bottom {
  text-align: center;
  padding-top: var(--space-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.875rem;
}

/* ===== Back to Top Button ===== */
.back-to-top {
  position: fixed;
  bottom: var(--space-xl);
  right: var(--space-xl);
  width: 48px;
  height: 48px;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-lg);
  z-index: 999;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background: var(--primary-dark);
  transform: translateY(-4px);
}

/* ===== Page Header ===== */
.page-header {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  padding: calc(80px + var(--space-2xl)) var(--space-lg) var(--space-2xl);
  text-align: center;
  color: white;
}

.page-header h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  margin-bottom: var(--space-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
}

.page-header p {
  font-size: 1.125rem;
  opacity: 0.9;
}

.page-content {
  padding: var(--space-2xl) var(--space-lg);
}

/* ===== Search Box ===== */
.search-box {
  max-width: 500px;
  margin: 0 auto var(--space-xl);
  position: relative;
}

.search-box input {
  width: 100%;
  padding: var(--space-md) var(--space-lg);
  padding-left: calc(var(--space-lg) + 24px);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-xl);
  font-size: 1rem;
  background: var(--bg-secondary);
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.search-box input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(55, 118, 171, 0.1);
}

.search-box i {
  position: absolute;
  left: var(--space-md);
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
}

/* ===== Developers Grid ===== */
.developers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-lg);
}

.developer-card {
  background: var(--bg-secondary);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-color);
  padding: var(--space-xl);
  text-align: center;
  transition: all var(--transition-base);
}

.developer-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}

.developer-avatar {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 auto var(--space-md);
}

.developer-card h3 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
  color: var(--text-primary);
}

.developer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-sm);
}

.developer-links a {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-sm);
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.developer-links a:hover {
  background: var(--primary);
  color: white;
}

/* ===== Companies Grid ===== */
.companies-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: var(--space-lg);
}

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

.company-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}

.company-card h3 {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
  color: var(--text-primary);
}

.company-card h3 i {
  color: var(--primary);
}

.company-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.company-info span {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.company-info span i {
  color: var(--text-muted);
  width: 16px;
  flex-shrink: 0;
  margin-top: 2px;
}

/* ===== Resources Section ===== */
.resources-section {
  background: var(--bg-secondary);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-color);
  padding: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.resources-section h2 {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
}

.resources-section h2 i {
  color: var(--primary);
}

.resources-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.resource-item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--bg-primary);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.resource-item:hover {
  background: var(--bg-tertiary);
}

.resource-item i {
  color: var(--primary);
  width: 20px;
  text-align: center;
}

.resource-item a {
  font-weight: 500;
}

/* ===== Videos Grid ===== */
.videos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: var(--space-lg);
}

.video-card {
  background: var(--bg-secondary);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-color);
  overflow: hidden;
  transition: all var(--transition-base);
}

.video-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}

.video-embed {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
}

.video-embed iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

.video-content {
  padding: var(--space-lg);
}

.video-content h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: var(--space-xs);
  color: var(--text-primary);
}

.video-content p {
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* ===== Meetup Detail ===== */
.meetup-detail {
  background: var(--bg-secondary);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-color);
  padding: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.meetup-detail h2 {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
  color: var(--text-primary);
}

.meetup-detail h2 i {
  color: var(--primary);
}

.meetup-detail-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--border-color);
}

.meetup-detail-meta span {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.9375rem;
  color: var(--text-secondary);
}

.meetup-detail-meta span i {
  color: var(--text-muted);
}

.talks-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.talk-item {
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  border: 1px solid var(--border-color);
}

.talk-item h4 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--space-xs);
  color: var(--text-primary);
}

.talk-item p {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  margin-bottom: var(--space-sm);
}

.talk-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.talk-links a {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-sm);
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.talk-links a:hover {
  background: var(--primary);
  color: white;
}

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
    min-height: auto;
    padding-top: calc(80px + var(--space-xl));
  }

  .hero-content {
    max-width: 100%;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-stats {
    justify-content: center;
  }

  .hero-visual {
    order: -1;
  }

  .code-window {
    max-width: 100%;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
  }
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    flex-direction: column;
    padding: var(--space-lg);
    border-bottom: 1px solid var(--border-color);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-lg);
  }

  .nav-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .nav-toggle.active .hamburger {
    background: transparent;
  }

  .nav-toggle.active .hamburger::before {
    top: 0;
    transform: rotate(45deg);
  }

  .nav-toggle.active .hamburger::after {
    top: 0;
    transform: rotate(-45deg);
  }

  .nav-actions .btn {
    display: none;
  }

  .hero-stats {
    flex-wrap: wrap;
    gap: var(--space-lg);
  }

  .stat-item {
    flex: 1 1 40%;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer-social {
    justify-content: center;
  }

  .meetups-grid,
  .videos-grid,
  .companies-grid {
    grid-template-columns: 1fr;
  }

  .announcement-content {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2rem;
  }

  .hero-actions {
    flex-direction: column;
  }

  .btn-lg {
    width: 100%;
  }

  .features-grid,
  .platforms-grid,
  .developers-grid {
    grid-template-columns: 1fr;
  }

  .meetup-card {
    flex-direction: column;
  }

  .meetup-number {
    font-size: 1.5rem;
  }
}