/* ═══════════════════════════════════════════════════════════
   Ibrahim Yasin — Portfolio  |  style.css
   Dark purple/indigo theme · Glassmorphism · Responsive
═══════════════════════════════════════════════════════════ */

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

:root {
  --bg:          #070511;
  --bg-card:     rgba(18, 14, 38, 0.7);
  --border:      rgba(139, 92, 246, 0.18);
  --border-hover:rgba(139, 92, 246, 0.5);
  --primary:     #a855f7;
  --primary-glow:rgba(168, 85, 247, 0.55);
  --fg:          #f0eeff;
  --fg-muted:    #8b8aaa;
  --grad-start:  #818cf8;
  --grad-mid:    #a855f7;
  --grad-end:    #c084fc;
  --radius:      1rem;
  --nav-h:       72px;
  --font:        'Inter', system-ui, -apple-system, sans-serif;
  --transition:  0.3s ease;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background-color: var(--bg);
  color: var(--fg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  background-image:
    radial-gradient(circle at 15% 50%, rgba(99,102,241,0.07) 0%, transparent 50%),
    radial-gradient(circle at 85% 30%, rgba(168,85,247,0.07) 0%, transparent 50%);
  background-attachment: fixed;
}

a { text-decoration: none; color: inherit; }
img, svg { display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

/* ── Typography helpers ───────────────────────────────── */
.text-gradient {
  background: linear-gradient(135deg, var(--grad-start), var(--grad-mid), var(--grad-end));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ── Ambient orbs ─────────────────────────────────────── */
.orbs { position: fixed; inset: 0; pointer-events: none; z-index: -1; overflow: hidden; }
.orb  { position: absolute; border-radius: 50%; filter: blur(120px); mix-blend-mode: screen; }
.orb-1 { top: -10%; left: -10%; width: 42%; height: 42%; background: rgba(99,102,241,0.10); animation: blob 18s ease-in-out infinite; }
.orb-2 { top: 20%;  right: -10%; width: 32%; height: 40%; background: rgba(168,85,247,0.10); animation: blob 22s ease-in-out infinite 3s; }
.orb-3 { bottom: -10%; left: 20%; width: 42%; height: 40%; background: rgba(236,72,153,0.08); animation: blob 20s ease-in-out infinite 6s; }

@keyframes blob {
  0%,100% { transform: translate(0,0) scale(1); }
  33%      { transform: translate(40px,-30px) scale(1.08); }
  66%      { transform: translate(-25px,20px) scale(0.94); }
}

/* ── Glassmorphism card ───────────────────────────────── */
.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  position: relative;
  overflow: hidden;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.glass-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
  pointer-events: none;
}
.glass-card:hover {
  border-color: var(--border-hover);
  box-shadow: 0 0 32px rgba(168,85,247,0.12);
}

/* ── Buttons ──────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 600;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--grad-start), var(--grad-mid));
  color: #fff;
  box-shadow: 0 0 36px -8px var(--primary-glow);
}
.btn-primary:hover {
  box-shadow: 0 0 56px -6px var(--primary-glow);
  transform: translateY(-2px);
  opacity: 0.92;
}
.btn-outline {
  border: 1px solid var(--border);
  color: var(--fg);
  background: rgba(255,255,255,0.04);
}
.btn-outline:hover { background: rgba(255,255,255,0.09); border-color: var(--border-hover); }
.btn-outline:disabled, .btn-outline[aria-disabled="true"] {
  opacity: 0.4; cursor: not-allowed; pointer-events: none;
}
.btn-ghost {
  background: rgba(255,255,255,0.05);
  color: var(--fg-muted);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius);
  padding: 0.6rem 1.1rem;
  font-size: 0.85rem;
  font-weight: 500;
  width: 100%;
  justify-content: center;
}
.btn-ghost:hover { background: rgba(255,255,255,0.10); color: var(--fg); }

/* ── Badges ───────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 500;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.10);
  color: rgba(240,238,255,0.8);
  transition: background var(--transition);
}
.badge:hover { background: rgba(255,255,255,0.10); }

.coming-soon-badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.10);
  color: var(--fg-muted);
  margin-bottom: 0.75rem;
}

/* ── Layout containers ────────────────────────────────── */
.container    { width: 100%; margin-inline: auto; padding-inline: 1.5rem; }
.container--md { max-width: 56rem; }
.container--lg { max-width: 68rem; }
.container--xl { max-width: 80rem; }
.section       { padding: 5.5rem 1.5rem; }

/* ── Scroll-reveal animation ──────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Hero entrance animations */
.animate-in {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.6s ease forwards;
  animation-delay: var(--delay, 0s);
}
@keyframes fadeUp {
  to { opacity: 1; transform: translateY(0); }
}

/* ══════════════════════════════════════════════════════
   NAVIGATION
══════════════════════════════════════════════════════ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 100;
  background: rgba(7,5,17,0.6);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255,255,255,0.07);
  transition: background var(--transition), box-shadow var(--transition);
}
.navbar.scrolled {
  background: rgba(7,5,17,0.85);
  box-shadow: 0 4px 32px rgba(0,0,0,0.3);
}
.nav-inner {
  max-width: 80rem;
  margin-inline: auto;
  padding-inline: 1.5rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Logo */
.nav-logo .logo-svg {
  filter: drop-shadow(0 0 8px rgba(168,85,247,0.45));
  transition: filter var(--transition), transform var(--transition);
}
.nav-logo:hover .logo-svg {
  filter: drop-shadow(0 0 18px rgba(168,85,247,0.85));
  transform: scale(1.1);
}

/* Nav links */
.nav-links {
  display: flex;
  list-style: none;
  gap: 2.25rem;
}
.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--fg-muted);
  transition: color var(--transition);
  position: relative;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -3px; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(135deg, var(--grad-start), var(--grad-end));
  transform: scaleX(0);
  transition: transform var(--transition);
  transform-origin: left;
}
.nav-link:hover          { color: var(--fg); }
.nav-link:hover::after   { transform: scaleX(1); }
.nav-link.active         { color: var(--fg); }
.nav-link.active::after  { transform: scaleX(1); }

/* Hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 0.4rem;
  z-index: 110;
}
.nav-hamburger span {
  display: block;
  width: 22px; height: 2px;
  background: var(--fg-muted);
  border-radius: 2px;
  transition: all var(--transition);
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ══════════════════════════════════════════════════════
   HERO
══════════════════════════════════════════════════════ */
.hero {
  min-height: calc(100svh - var(--nav-h));
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--nav-h) + 2rem) 1.5rem 4rem;
}
.hero-inner { max-width: 52rem; margin-inline: auto; text-align: center; }

.hero-logo { display: flex; justify-content: center; margin-bottom: 2rem; }
.logo-hero {
  filter: drop-shadow(0 0 18px rgba(168,85,247,0.65));
  transition: filter 0.4s ease, transform 0.4s ease;
}
.logo-hero:hover {
  filter: drop-shadow(0 0 32px rgba(168,85,247,1));
  transform: scale(1.08);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 1.1rem;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 500;
  border: 1px solid rgba(168,85,247,0.35);
  background: rgba(168,85,247,0.08);
  color: var(--fg);
  margin-bottom: 1.5rem;
}
.badge-icon { color: var(--primary); }

.hero-name {
  font-size: clamp(2.8rem, 9vw, 6rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: 1rem;
}
.hero-title {
  font-size: clamp(1.1rem, 3vw, 1.6rem);
  font-weight: 500;
  color: var(--fg-muted);
  margin-bottom: 1.5rem;
}
.hero-desc {
  font-size: clamp(1rem, 2vw, 1.15rem);
  color: rgba(139,138,170,0.85);
  max-width: 38rem;
  margin-inline: auto;
  margin-bottom: 2.5rem;
  line-height: 1.75;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}
.hero-actions .btn { min-width: 160px; }

/* ══════════════════════════════════════════════════════
   SECTION HEADINGS
══════════════════════════════════════════════════════ */
.section-title {
  font-size: clamp(1.8rem, 5vw, 3rem);
  font-weight: 800;
  margin-bottom: 3rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}
.section-line {
  flex: 1;
  height: 1px;
  background: rgba(255,255,255,0.08);
}
.section-sub {
  font-size: 1.1rem;
  color: var(--fg-muted);
  margin-bottom: 3.5rem;
}
.projects-heading {
  font-size: clamp(1.8rem, 5vw, 3rem);
  font-weight: 800;
  margin-bottom: 1rem;
}
.text-center { text-align: center; }

/* ══════════════════════════════════════════════════════
   ABOUT
══════════════════════════════════════════════════════ */
.about-card {
  padding: 2.5rem 3rem;
  border-radius: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  font-size: 1.05rem;
  line-height: 1.85;
  color: var(--fg-muted);
}

/* ══════════════════════════════════════════════════════
   SKILLS
══════════════════════════════════════════════════════ */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.25rem;
}
.skill-card {
  padding: 1.5rem;
  transition: transform var(--transition), border-color var(--transition);
}
.skill-card:hover { transform: translateY(-6px); }
.skill-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}
.skill-icon {
  padding: 0.65rem;
  background: rgba(255,255,255,0.05);
  border-radius: 0.75rem;
  transition: background var(--transition);
}
.skill-card:hover .skill-icon { background: rgba(255,255,255,0.10); }
.skill-header h3 { font-size: 0.95rem; font-weight: 600; }
.badge-group { display: flex; flex-wrap: wrap; gap: 0.5rem; }

/* ══════════════════════════════════════════════════════
   PROJECTS — timeline
══════════════════════════════════════════════════════ */
.timeline {
  position: relative;
  border-left: 1px solid rgba(255,255,255,0.10);
  padding-left: 2.5rem;
  margin-left: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 4.5rem;
}
.timeline-item { position: relative; }
.timeline-dot {
  position: absolute;
  left: calc(-2.5rem - 0.5rem + 1px);
  top: 0.35rem;
  width: 1rem; height: 1rem;
  border-radius: 50%;
  background: var(--primary);
  border: 2px solid var(--bg);
  box-shadow: 0 0 14px rgba(168,85,247,0.8);
}
.module-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: rgba(240,238,255,0.9);
}
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1.25rem;
}
.project-card {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 1.25rem;
}
.project-card:hover { border-color: var(--border-hover); }
.project-card h4 {
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.45;
  color: var(--fg);
}

/* ══════════════════════════════════════════════════════
   ROADMAP
══════════════════════════════════════════════════════ */
.roadmap-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.25rem;
  opacity: 0.72;
}
.roadmap-card {
  padding: 1.5rem;
}
.roadmap-card h3 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.6rem;
  color: var(--fg);
}
.roadmap-card p {
  font-size: 0.85rem;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* ══════════════════════════════════════════════════════
   CONTACT
══════════════════════════════════════════════════════ */
.contact-section { position: relative; padding-bottom: 6rem; }
.contact-glow {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 100%, rgba(168,85,247,0.10) 0%, transparent 65%);
  pointer-events: none;
}
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.25rem;
  margin-bottom: 1.25rem;
}
.contact-card {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  cursor: pointer;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.contact-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: 0 0 40px rgba(168,85,247,0.14);
}
/* Sweep shimmer effect */
.contact-sweep {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(168,85,247,0) 0%, rgba(168,85,247,0.06) 50%, rgba(168,85,247,0) 100%);
  transform: translateX(-110%);
  transition: transform 0.9s ease;
  pointer-events: none;
}
.contact-card:hover .contact-sweep { transform: translateX(110%); }
.contact-icon-row {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.contact-icon {
  padding: 0.75rem;
  background: rgba(255,255,255,0.05);
  border-radius: 0.75rem;
  flex-shrink: 0;
}
.contact-label { font-size: 0.8rem; color: var(--fg-muted); margin-bottom: 0.2rem; }
.contact-value { font-size: 0.95rem; font-weight: 600; }
.contact-btn { pointer-events: none; }

/* CV card */
.cv-card {
  text-align: center;
  padding: 2rem;
  border-style: dashed;
  border-color: rgba(255,255,255,0.15);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}
.cv-icon { color: var(--fg-muted); }
.cv-text  { font-size: 0.95rem; font-weight: 500; color: var(--fg-muted); }

/* ══════════════════════════════════════════════════════
   FOOTER
══════════════════════════════════════════════════════ */
.site-footer {
  border-top: 1px solid rgba(255,255,255,0.07);
  background: rgba(7,5,17,0.5);
  backdrop-filter: blur(12px);
  padding: 2.5rem 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  text-align: center;
}
.logo-footer {
  filter: drop-shadow(0 0 7px rgba(168,85,247,0.38));
  transition: filter var(--transition), transform var(--transition);
}
.logo-footer:hover {
  filter: drop-shadow(0 0 16px rgba(168,85,247,0.78));
  transform: scale(1.1);
}
.footer-name { font-size: 0.9rem; font-weight: 500; color: rgba(240,238,255,0.55); }
.footer-sub  { font-size: 0.8rem; color: rgba(139,138,170,0.4); }

/* ══════════════════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════════════════ */
@media (max-width: 768px) {
  :root { --nav-h: 64px; }

  .nav-hamburger { display: flex; }

  .nav-links {
    position: fixed;
    top: var(--nav-h); left: 0; right: 0;
    flex-direction: column;
    gap: 0;
    background: rgba(7,5,17,0.96);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255,255,255,0.07);
    padding: 1rem 0;
    transform: translateY(-110%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.35s ease, opacity 0.35s ease;
  }
  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-links li { width: 100%; }
  .nav-link {
    display: block;
    padding: 0.85rem 2rem;
    font-size: 1rem;
  }
  .nav-link::after { display: none; }

  .section { padding: 4rem 1.25rem; }
  .about-card { padding: 1.75rem; }

  .skills-grid,
  .projects-grid,
  .roadmap-grid,
  .contact-grid { grid-template-columns: 1fr; }

  .timeline { padding-left: 1.5rem; margin-left: 0.25rem; }
  .timeline-dot { left: calc(-1.5rem - 0.5rem + 1px); }
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .section-title { gap: 1rem; }
}