/* ============================================================
   SPACE PORTFOLIO — Yaseen Asaliya
   ============================================================ */

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

:root {
  --bg:        #020817;
  --bg2:       #0a1628;
  --accent:    #38bdf8;
  --accent2:   #818cf8;
  --purple:    #7c3aed;
  --glow:      #38bdf8;
  --text:      #e2e8f0;
  --muted:     #94a3b8;
  --card-bg:   rgba(14, 26, 50, 0.7);
  --border:    rgba(56, 189, 248, 0.15);
  --radius:    14px;
  --font-head: 'Orbitron', sans-serif;
  --font-body: 'Inter', sans-serif;
  --nav-h:     72px;
  --transition: 0.35s cubic-bezier(.4,0,.2,1);
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
ul { list-style: none; }

/* ---------- Starfield ---------- */
#starfield {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

/* ---------- Nebula blobs ---------- */
.nebula {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.18;
  pointer-events: none;
  z-index: 0;
  animation: nebula-drift 20s ease-in-out infinite alternate;
}
.nebula-1 { width: 600px; height: 600px; background: #7c3aed; top: -150px; left: -150px; animation-delay: 0s; }
.nebula-2 { width: 500px; height: 500px; background: #0ea5e9; top: 40%; right: -100px; animation-delay: -7s; }
.nebula-3 { width: 400px; height: 400px; background: #6d28d9; bottom: -100px; left: 30%; animation-delay: -14s; }

@keyframes nebula-drift {
  from { transform: translate(0,0) scale(1); }
  to   { transform: translate(40px, 30px) scale(1.1); }
}

/* ---------- NAV ---------- */
#nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 5%;
  z-index: 100;
  background: rgba(2, 8, 23, 0.6);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}
#nav.scrolled { background: rgba(2, 8, 23, 0.92); }

.nav-logo {
  font-family: var(--font-head);
  font-size: 1.4rem;
  font-weight: 900;
  letter-spacing: 2px;
  color: var(--text);
}
.logo-bracket { color: var(--accent); }

.nav-links { display: flex; gap: 2.2rem; }
.nav-links a {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: 0.5px;
  transition: color var(--transition);
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 2px;
  background: var(--accent);
  transition: width var(--transition);
}
.nav-links a:hover { color: var(--accent); }
.nav-links a:hover::after { width: 100%; }

/* Hamburger */
.hamburger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 4px; }
.hamburger span { display: block; width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: var(--transition); }
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile Menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: var(--nav-h);
  left: 0; right: 0;
  background: rgba(2, 8, 23, 0.97);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  z-index: 99;
  padding: 1.5rem 0;
}
.mobile-menu.open { display: block; }
.mobile-menu ul { display: flex; flex-direction: column; align-items: center; gap: 1.2rem; }
.mob-link { font-size: 1.1rem; font-weight: 500; color: var(--muted); }
.mob-link:hover { color: var(--accent); }

/* ---------- HERO ---------- */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: calc(var(--nav-h) + 2rem) 7% 4rem;
  overflow: hidden;
  gap: 3rem;
}

/* Orbital rings */
.hero-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(56, 189, 248, 0.1);
  pointer-events: none;
}
.hero-ring-1 { width: 600px; height: 600px; top: 50%; left: 50%; transform: translate(-50%,-50%); animation: spin 60s linear infinite; }
.hero-ring-2 { width: 850px; height: 850px; top: 50%; left: 50%; transform: translate(-50%,-50%); animation: spin 90s linear infinite reverse; }
.hero-ring-3 { width: 1100px; height: 1100px; top: 50%; left: 50%; transform: translate(-50%,-50%); animation: spin 130s linear infinite; }
@keyframes spin { to { transform: translate(-50%,-50%) rotate(360deg); } }

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 600px;
}

.hero-greeting {
  font-size: 1rem;
  color: var(--accent);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
  font-weight: 500;
}

.hero-name {
  font-family: var(--font-head);
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 900;
  line-height: 1.1;
  background: linear-gradient(135deg, #fff 30%, var(--accent) 70%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1rem;
  filter: drop-shadow(0 0 20px rgba(56,189,248,0.3));
}

.hero-typewriter {
  font-size: 1.3rem;
  color: var(--accent2);
  font-weight: 500;
  margin-bottom: 0.8rem;
  min-height: 2rem;
}
.cursor {
  display: inline-block;
  color: var(--accent);
  animation: blink 1s step-end infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.hero-sub {
  color: var(--muted);
  font-size: 0.95rem;
  margin-bottom: 2rem;
  letter-spacing: 0.5px;
}

.hero-btns { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 2rem; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0.7rem 1.6rem;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: none;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #000;
  box-shadow: 0 0 24px rgba(56,189,248,0.4);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 36px rgba(56,189,248,0.6);
}
.btn-secondary {
  background: transparent;
  color: var(--accent);
  border: 1.5px solid var(--accent);
}
.btn-secondary:hover {
  background: rgba(56,189,248,0.1);
  transform: translateY(-2px);
}

/* Social Icons */
.hero-socials { display: flex; gap: 1rem; align-items: center; }
.social-icon {
  display: flex;
  align-items: center;
  gap: 5px;
  color: var(--muted);
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  transition: var(--transition);
  font-size: 0.8rem;
  font-weight: 600;
}
.social-icon:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: rgba(56,189,248,0.08);
  transform: translateY(-2px);
}
.lc-icon { color: #ffa116; border-color: rgba(255,161,22,0.3); }
.lc-icon:hover { color: #ffa116; border-color: #ffa116; background: rgba(255,161,22,0.08); }

/* Hero photo */
.hero-photo-wrapper {
  position: relative;
  z-index: 2;
  flex-shrink: 0;
  width: 340px;
  height: 340px;
}
.hero-photo {
  width: 300px;
  height: 300px;
  object-fit: cover;
  object-position: top center;
  border-radius: 50%;
  border: 3px solid rgba(56,189,248,0.4);
  box-shadow: 0 0 60px rgba(56,189,248,0.25), 0 0 120px rgba(124,58,237,0.15);
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%,-50%);
}
.orbit-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1.5px dashed rgba(56,189,248,0.25);
  animation: spin 12s linear infinite;
}
.orbit-dot {
  position: absolute;
  width: 12px; height: 12px;
  background: var(--accent);
  border-radius: 50%;
  top: 0; left: 50%;
  transform: translateX(-50%);
  box-shadow: 0 0 10px var(--accent);
  animation: spin 12s linear infinite;
}

/* Scroll hint */
.scroll-hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 0.75rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  z-index: 2;
  animation: float 3s ease-in-out infinite;
}
.scroll-line {
  width: 1px;
  height: 50px;
  background: linear-gradient(to bottom, var(--accent), transparent);
}
@keyframes float { 0%,100% { transform: translateX(-50%) translateY(0); } 50% { transform: translateX(-50%) translateY(-8px); } }

/* ---------- SECTIONS ---------- */
.section {
  position: relative;
  z-index: 1;
  padding: 6rem 7%;
  max-width: 1200px;
  margin: 0 auto;
}

.section-tag {
  font-family: var(--font-head);
  font-size: 0.78rem;
  color: var(--accent);
  letter-spacing: 3px;
  margin-bottom: 0.6rem;
  opacity: 0.8;
}

.section-title {
  font-family: var(--font-head);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 700;
  margin-bottom: 3rem;
  color: var(--text);
}
.glow {
  color: var(--accent);
  text-shadow: 0 0 30px rgba(56,189,248,0.5);
}

/* Reveal animation */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- ABOUT ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}
.about-text p {
  color: var(--muted);
  margin-bottom: 1.2rem;
  font-size: 1.02rem;
}
.about-text strong { color: var(--text); }

.about-stats {
  display: flex;
  gap: 1.2rem;
  margin-top: 2rem;
  flex-wrap: wrap;
}
.stat-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.2rem 1.4rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1;
  min-width: 100px;
  backdrop-filter: blur(10px);
}
.stat-num {
  font-family: var(--font-head);
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--accent);
  line-height: 1;
}
.stat-label {
  font-size: 0.75rem;
  color: var(--muted);
  text-align: center;
  margin-top: 4px;
}

.about-cards { display: flex; flex-direction: column; gap: 1rem; }
.info-card {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.2rem 1.4rem;
  backdrop-filter: blur(10px);
  transition: border-color var(--transition), transform var(--transition);
}
.info-card:hover { border-color: var(--accent); transform: translateX(4px); }
.info-card-icon { font-size: 1.6rem; flex-shrink: 0; }
.info-card h4 { font-size: 0.9rem; font-weight: 600; color: var(--accent); margin-bottom: 4px; }
.info-card p { font-size: 0.88rem; color: var(--muted); line-height: 1.6; }
.info-card em { color: var(--accent2); font-style: normal; }

.cert-card {
  border-color: rgba(255, 161, 22, 0.3);
  cursor: pointer;
}
.cert-card:hover {
  border-color: #ffa116;
  transform: translateX(4px);
  box-shadow: 0 0 20px rgba(255,161,22,0.12);
}
.cert-verify {
  color: #ffa116 !important;
  font-size: 0.8rem;
  font-style: normal;
}

.cert-badge {
  margin-left: auto;
  background: rgba(255,161,22,0.12);
  border: 1px solid rgba(255,161,22,0.4);
  color: #ffa116;
  border-radius: 50px;
  padding: 2px 10px;
  font-size: 0.72rem;
  font-weight: 600;
  white-space: nowrap;
  transition: var(--transition);
  font-family: var(--font-body);
}
.cert-badge:hover {
  background: rgba(255,161,22,0.22);
  box-shadow: 0 0 12px rgba(255,161,22,0.3);
}

/* AI group */
.ai-group { border-color: rgba(168, 85, 247, 0.25); }
.ai-group:hover { border-color: rgba(168, 85, 247, 0.5); }
.ai-group .skill-group-title { color: #c084fc; }
.ai-pills span {
  background: rgba(168,85,247,0.1) !important;
  border-color: rgba(168,85,247,0.3) !important;
  color: #c084fc !important;
}
.ai-pills span:hover {
  background: rgba(168,85,247,0.2) !important;
  border-color: #c084fc !important;
}

/* ---------- TIMELINE ---------- */
.timeline {
  position: relative;
  padding-left: 2.5rem;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent), var(--purple), transparent);
  border-radius: 2px;
}

.timeline-item {
  position: relative;
  margin-bottom: 2.5rem;
}
.timeline-dot {
  position: absolute;
  left: -2.9rem;
  top: 1.2rem;
  width: 14px; height: 14px;
  background: var(--accent);
  border-radius: 50%;
  border: 2px solid var(--bg);
  box-shadow: 0 0 10px var(--accent);
}

.timeline-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.6rem 1.8rem;
  backdrop-filter: blur(12px);
  transition: border-color var(--transition), transform var(--transition);
}
.timeline-card:hover {
  border-color: rgba(56,189,248,0.4);
  transform: translateX(4px);
}

.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 1rem;
}
.timeline-header h3 { font-size: 1.05rem; font-weight: 600; color: var(--text); }
.company { font-size: 0.88rem; color: var(--accent); display: block; margin-top: 2px; }
.company em { color: var(--muted); font-style: normal; }

.date-badge {
  background: rgba(56,189,248,0.1);
  border: 1px solid rgba(56,189,248,0.25);
  color: var(--accent);
  border-radius: 50px;
  padding: 3px 12px;
  font-size: 0.78rem;
  font-weight: 500;
  white-space: nowrap;
  flex-shrink: 0;
}

.timeline-bullets { padding-left: 1.1rem; margin-bottom: 1rem; }
.timeline-bullets li {
  list-style: disc;
  color: var(--muted);
  font-size: 0.93rem;
  margin-bottom: 0.4rem;
}

.timeline-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.timeline-tags span {
  background: rgba(129,140,248,0.1);
  border: 1px solid rgba(129,140,248,0.25);
  color: var(--accent2);
  border-radius: 6px;
  padding: 2px 10px;
  font-size: 0.78rem;
  font-weight: 500;
}

/* ---------- SKILLS ---------- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}
.skill-group {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  backdrop-filter: blur(12px);
  transition: border-color var(--transition);
}
.skill-group:hover { border-color: rgba(56,189,248,0.35); }

.skill-group-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 8px;
}
.skill-icon { font-size: 1.1rem; }
.skill-pills { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.skill-pills span {
  background: rgba(56,189,248,0.08);
  border: 1px solid rgba(56,189,248,0.2);
  color: var(--accent);
  border-radius: 6px;
  padding: 4px 12px;
  font-size: 0.82rem;
  font-weight: 500;
  transition: var(--transition);
  cursor: default;
}
.skill-pills span:hover {
  background: rgba(56,189,248,0.18);
  border-color: var(--accent);
}

/* ---------- PROJECTS ---------- */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.8rem;
  margin-bottom: 3rem;
}
.project-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  backdrop-filter: blur(12px);
  transition: border-color var(--transition), transform var(--transition);
}
.project-card:hover { border-color: rgba(56,189,248,0.4); transform: translateY(-6px); }

.project-img-wrapper { position: relative; overflow: hidden; height: 200px; }
.project-img-wrapper img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.project-card:hover .project-img-wrapper img { transform: scale(1.06); }

.project-overlay {
  position: absolute;
  inset: 0;
  background: rgba(2,8,23,0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition);
}
.project-card:hover .project-overlay { opacity: 1; }
.overlay-btn {
  padding: 0.6rem 1.4rem;
  border: 1.5px solid var(--accent);
  border-radius: 50px;
  color: var(--accent);
  font-size: 0.88rem;
  font-weight: 600;
  transition: var(--transition);
}
.overlay-btn:hover { background: var(--accent); color: #000; }

.project-body { padding: 1.4rem; }
.project-body h3 { font-size: 1.05rem; font-weight: 600; margin-bottom: 0.6rem; }
.project-body p { color: var(--muted); font-size: 0.9rem; margin-bottom: 1rem; }
.project-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.project-tags span {
  background: rgba(129,140,248,0.1);
  border: 1px solid rgba(129,140,248,0.25);
  color: var(--accent2);
  border-radius: 6px;
  padding: 2px 9px;
  font-size: 0.76rem;
  font-weight: 500;
}

.github-cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}
.github-cta p { color: var(--muted); font-size: 0.95rem; }

/* ---------- CONTACT ---------- */
.contact-sub {
  color: var(--muted);
  font-size: 1rem;
  margin-bottom: 2.5rem;
  margin-top: -1.5rem;
}
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1.2rem;
}
.contact-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.8rem;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  text-align: center;
  backdrop-filter: blur(12px);
  transition: border-color var(--transition), transform var(--transition);
  cursor: pointer;
}
.contact-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(56,189,248,0.12);
}
.contact-card-icon {
  width: 56px; height: 56px;
  background: rgba(56,189,248,0.1);
  border: 1px solid rgba(56,189,248,0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  transition: var(--transition);
}
.contact-card:hover .contact-card-icon {
  background: rgba(56,189,248,0.2);
  box-shadow: 0 0 20px rgba(56,189,248,0.3);
}
.contact-card h4 { font-size: 0.95rem; font-weight: 600; color: var(--text); }
.contact-card p { font-size: 0.84rem; color: var(--muted); word-break: break-all; }

/* ---------- FOOTER ---------- */
footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border);
  padding: 2.5rem 5%;
  text-align: center;
}
.footer-inner { display: flex; flex-direction: column; align-items: center; gap: 0.5rem; }
.footer-logo {
  font-family: var(--font-head);
  font-size: 1.2rem;
  font-weight: 900;
  margin-bottom: 0.3rem;
}
footer p { color: var(--muted); font-size: 0.88rem; }
.footer-copy { font-size: 0.8rem; opacity: 0.6; }

/* ---------- RESPONSIVE ---------- */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }

  #hero {
    flex-direction: column-reverse;
    justify-content: center;
    text-align: center;
    padding-top: calc(var(--nav-h) + 3rem);
  }
  .hero-photo-wrapper { width: 240px; height: 240px; }
  .hero-photo { width: 210px; height: 210px; }
  .hero-btns, .hero-socials { justify-content: center; }

  .about-grid { grid-template-columns: 1fr; }
  .timeline { padding-left: 1.8rem; }
  .timeline-dot { left: -2.2rem; }
  .timeline-header { flex-direction: column; }
}

@media (max-width: 550px) {
  .section { padding: 4rem 5%; }
  .about-stats { justify-content: center; }
  .projects-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr 1fr; }
  .hero-name { font-size: 2rem; }
}