/*
  Futuristic Responsive UI — Aaqil's Personal Site
  Shared styles for index.html, education.html, coding.html
  Font: Outfit (Google Fonts)
  Theme: Dark with neon accents + glassmorphism
*/

:root {
  --bg-dark: #0a0a0a; /* Deep black background */
  --bg-card: rgba(255, 255, 255, 0.05);
  --bg-glass: rgba(255, 255, 255, 0.08);
  --text-light: #f8fafc; 
  --text-muted: #94a3b8;
  --accent: #00f7ff; /* Neon blue */
  --accent2: #00c6ff; /* Lighter cyan for gradients */
  --radius: 1rem;
  --shadow: 0 8px 24px rgba(0,0,0,0.6);
}

html {
  font-family: 'Outfit', sans-serif;
  background-color: var(--bg-dark);
  color: var(--text-light);
  line-height: 1.6;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Accessibility skip link */
.skip-link {
  position: absolute;
  left: -999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.skip-link:focus {
  left: 0;
  top: 0;
  width: auto;
  height: auto;
  padding: .5rem 1rem;
  background: var(--accent);
  color: #000;
  z-index: 1000;
}

/* Layout */
.container {
  width: min(90%, 1200px);
  margin-inline: auto;
}

header.site-header {
  background: var(--bg-dark);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}
.logo {
  font-weight: 700;
  font-size: 1.25rem;
  display: flex;
  align-items: center;
  gap: .25rem;
  text-decoration: none;
  color: var(--accent);
}
.logo-mark { color: var(--accent2); }

.site-nav ul {
  list-style: none;
  display: flex;
  gap: 1rem;
  margin: 0;
  padding: 0;
}
.site-nav a {
  color: var(--text-light);
  text-decoration: none;
  font-weight: 500;
  transition: color .3s;
}
.site-nav a:hover,
.site-nav a.active {
  color: var(--accent);
}

.menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--accent);
  color: var(--accent);
  padding: .5rem .75rem;
  border-radius: .5rem;
}

/* Hero */
.hero, .page-hero {
  padding: 4rem 0;
  display: grid;
  gap: 2rem;
  align-items: center;
}
.hero {
  grid-template-columns: repeat(auto-fit, minmax(280px,1fr));
}
.hero h1, .page-hero h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 1.2;
}
.hero .accent { color: var(--accent); }
.greeting { color: var(--accent2); font-weight: 600; }

.hero-ctas { display: flex; gap: 1rem; margin-top: 1.5rem; }

.btn {
  background: var(--accent);
  color: #000;
  text-decoration: none;
  padding: .75rem 1.25rem;
  border-radius: var(--radius);
  font-weight: 600;
  box-shadow: var(--shadow);
  transition: background .3s;
}
.btn:hover { background: #0ea5e9; }
.btn.ghost {
  background: transparent;
  border: 2px solid var(--accent);
  color: var(--accent);
}
.btn.ghost:hover { background: rgba(56,189,248,0.1); }

/* Card base */
.card, .skill-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
  border: 2px solid transparent;
  transition: all 0.3s ease;
}

/* Card hover effect */
.card:hover, .skill-card:hover {
  transform: translateY(-10px) scale(1.05);
  border-color: var(--accent);
  box-shadow: 0 12px 30px rgba(0, 247, 255, 0.4);
}

/* Text/icon glow on hover */
.card:hover h3, 
.card:hover p, 
.skill-card:hover h3, 
.skill-card:hover p {
  color: var(--accent);
  text-shadow: 0 0 8px rgba(0, 247, 255, 0.7);
}

.card-top { display: flex; justify-content: space-between; margin-bottom: 1rem; }
.chip {
  background: var(--accent2);
  color: #000;
  padding: .25rem .5rem;
  border-radius: .5rem;
  font-size: .75rem;
  font-weight: 600;
}
.pulse {
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.4); opacity: 0.5; }
  100% { transform: scale(1); opacity: 1; }
}

/* Features */
.features {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(240px,1fr));
  padding: 2rem 0;
}
.features h4 { color: var(--accent); }

/* Timeline */
.timeline {
  margin: 3rem 0;
  border-left: 2px solid var(--accent2);
  padding-left: 1.5rem;
}
.timeline-item { margin-bottom: 2rem; }
.timeline-content h3 { color: var(--accent); margin-top: 0; }

/* Skills grid */
.skills-grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(250px,1fr));
  margin: 2rem 0;
}

/* Page nav */
.page-nav {
  display: flex;
  justify-content: space-between;
  margin: 3rem 0;
}

/* Contact */
.contact-cta {
  text-align: center;
  margin: 3rem 0;
  background: var(--bg-glass);
  padding: 2rem;
  border-radius: var(--radius);
}

/* Footer */
footer.site-footer {
  margin-top: auto;
  padding: 2rem 0;
  text-align: center;
  font-size: .875rem;
  color: var(--text-muted);
  border-top: 1px solid rgba(255,255,255,0.1);
}

/* Background layers */
.background {
  position: fixed;
  inset: 0;
  overflow: hidden;
  z-index: -1;
}
.bg-grid {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 40px 40px;
}
.bg-glow {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at calc(var(--mx,0.5)*100%) calc(var(--my,0.5)*100%), rgba(56,189,248,0.15), transparent 50%);
  transition: background-position .2s;
}

/* Responsive nav */
@media (max-width: 768px) {
  .site-nav ul {
    position: absolute;
    top: 100%;
    right: 0;
    flex-direction: column;
    background: var(--bg-dark);
    padding: 1rem;
    border-radius: .5rem;
    box-shadow: var(--shadow);
    display: none;
  }
  .site-nav.open ul { display: flex; }
  .menu-toggle { display: block; }

.projects-grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  margin: 2rem 0;
}

.project-card {
  background: var(--bg-card);
  padding: 1.5rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: transform .3s, border .3s;
}

.project-card:hover {
  transform: translateY(-8px);
  border: 2px solid var(--accent);
}

.project-card h2 {
  color: var(--accent2);
  margin-top: 0;
}
}