/* ===================================================================
   Raed Ouiriemmi — portfolio
   Senior-designer pass: spotlight cards, tilt, aurora, grain, marquee.
   =================================================================== */

/* ===== Theme tokens ===== */
:root {
  --bg: #060912;
  --bg-soft: #0c1322;
  --card: #0e1626;
  --card-hover: #131e33;
  --border: #1d2740;
  --border-soft: #161f33;
  --text: #eaeff8;
  --muted: #93a0bd;
  --faint: #56627e;
  --accent: #5b8cff;
  --accent-2: #a06bff;
  --accent-3: #22d3ee;
  --ok: #34d399;
  --grad: linear-gradient(115deg, var(--accent-3), var(--accent) 48%, var(--accent-2));
  --grad-soft: linear-gradient(115deg, rgba(34,211,238,.16), rgba(91,140,255,.16), rgba(160,107,255,.16));
  --shadow: 0 24px 60px -24px rgba(0, 0, 0, .7);
  --shadow-glow: 0 20px 50px -20px rgba(91, 140, 255, .45);
  --radius: 18px;
  --radius-sm: 11px;
  --maxw: 1120px;
  --ease: cubic-bezier(.22, 1, .36, 1);
}
:root[data-theme="light"] {
  --bg: #f5f7fc;
  --bg-soft: #ffffff;
  --card: #ffffff;
  --card-hover: #ffffff;
  --border: #e4e9f4;
  --border-soft: #eef2f9;
  --text: #101728;
  --muted: #56607a;
  --faint: #c2cbdd;
  --shadow: 0 24px 60px -28px rgba(40, 60, 120, .28);
  --shadow-glow: 0 20px 50px -22px rgba(91, 140, 255, .35);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
::selection { background: color-mix(in srgb, var(--accent) 45%, transparent); color: #fff; }
html { scroll-behavior: smooth; scroll-padding-top: 96px; }
body {
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  transition: background .5s var(--ease), color .5s var(--ease);
}
h1, h2, h3 { font-family: "Space Grotesk", "Inter", sans-serif; line-height: 1.12; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* ===== Scroll progress ===== */
.scroll-progress {
  position: fixed; top: 0; left: 0; height: 3px; width: 0%;
  background: var(--grad); z-index: 100; border-radius: 0 3px 3px 0;
  box-shadow: 0 0 14px rgba(91, 140, 255, .6);
}

/* ===== Film grain ===== */
.grain {
  position: fixed; inset: -50%; z-index: 90; pointer-events: none;
  opacity: .04; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
:root[data-theme="light"] .grain { opacity: .03; mix-blend-mode: multiply; }

/* ===== Cursor glow (desktop) ===== */
.cursor-glow {
  position: fixed; top: 0; left: 0; z-index: 0; pointer-events: none;
  width: 460px; height: 460px; margin: -230px 0 0 -230px; border-radius: 50%;
  background: radial-gradient(circle, rgba(91,140,255,.16), transparent 62%);
  filter: blur(8px); opacity: 0; transition: opacity .4s var(--ease);
  will-change: transform;
}
body.has-cursor .cursor-glow { opacity: 1; }
:root[data-theme="light"] .cursor-glow { background: radial-gradient(circle, rgba(91,140,255,.20), transparent 62%); }

/* ===== Background decoration ===== */
.bg-grid {
  position: fixed; inset: 0; z-index: -2;
  background-image:
    linear-gradient(var(--border-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--border-soft) 1px, transparent 1px);
  background-size: 58px 58px;
  opacity: .6;
  mask-image: radial-gradient(ellipse 85% 60% at 50% -5%, #000 25%, transparent 72%);
  -webkit-mask-image: radial-gradient(ellipse 85% 60% at 50% -5%, #000 25%, transparent 72%);
}
.aurora { position: fixed; inset: 0; z-index: -1; overflow: hidden; pointer-events: none; }
.aurora span {
  position: absolute; border-radius: 50%; filter: blur(70px); opacity: .55;
  will-change: transform;
}
.aurora .a1 { width: 540px; height: 540px; top: -180px; left: 8%;  background: radial-gradient(circle, rgba(91,140,255,.55), transparent 60%); animation: drift1 22s var(--ease) infinite; }
.aurora .a2 { width: 460px; height: 460px; top: -120px; right: 6%; background: radial-gradient(circle, rgba(160,107,255,.45), transparent 60%); animation: drift2 27s var(--ease) infinite; }
.aurora .a3 { width: 420px; height: 420px; top: 36%;  left: 42%; background: radial-gradient(circle, rgba(34,211,238,.30), transparent 60%); animation: drift3 32s var(--ease) infinite; }
:root[data-theme="light"] .aurora span { opacity: .4; }
@keyframes drift1 { 0%,100% { transform: translate(0,0) scale(1); } 50% { transform: translate(60px,40px) scale(1.12); } }
@keyframes drift2 { 0%,100% { transform: translate(0,0) scale(1); } 50% { transform: translate(-50px,50px) scale(1.08); } }
@keyframes drift3 { 0%,100% { transform: translate(0,0) scale(1); } 50% { transform: translate(40px,-30px) scale(1.15); } }

/* ===== Navbar ===== */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 60;
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px clamp(20px, 5vw, 52px);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  background: color-mix(in srgb, var(--bg) 64%, transparent);
  border-bottom: 1px solid transparent;
  transition: border-color .3s, padding .3s, background .3s;
}
.nav.scrolled { border-bottom-color: var(--border); padding-top: 13px; padding-bottom: 13px; }
.nav__logo { font-family: "Space Grotesk"; font-weight: 700; font-size: 1.4rem; letter-spacing: .5px; }
.nav__logo span { color: var(--accent); }
.nav__links { display: flex; gap: 30px; }
.nav__links a { color: var(--muted); font-size: .94rem; font-weight: 500; position: relative; transition: color .2s; }
.nav__links a:hover, .nav__links a.active { color: var(--text); }
.nav__links a::after {
  content: ""; position: absolute; left: 0; bottom: -6px; height: 2px; width: 0;
  background: var(--grad); border-radius: 2px; transition: width .28s var(--ease);
}
.nav__links a:hover::after, .nav__links a.active::after { width: 100%; }
.nav__actions { display: flex; align-items: center; gap: 8px; }

.icon-btn {
  display: grid; place-items: center;
  width: 42px; height: 42px; border-radius: 11px;
  background: var(--card); border: 1px solid var(--border); color: var(--text);
  cursor: pointer; transition: background .2s, transform .2s, border-color .2s;
}
.icon-btn:hover { background: var(--card-hover); transform: translateY(-2px); border-color: var(--accent); }
.menu-btn { display: none; }
.icon-moon { display: none; }
:root[data-theme="light"] .icon-sun { display: none; }
:root[data-theme="light"] .icon-moon { display: block; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 24px; border-radius: 13px; font-weight: 600; font-size: .95rem;
  cursor: pointer; border: 1px solid transparent; position: relative;
  transition: transform .25s var(--ease), box-shadow .25s, background .2s, border-color .2s;
  will-change: transform;
}
.btn--primary { background: var(--grad); color: #fff; box-shadow: 0 10px 28px -10px rgba(91,140,255,.65); background-size: 160% 160%; }
.btn--primary:hover { box-shadow: 0 18px 38px -10px rgba(91,140,255,.8); }
.btn--ghost { background: var(--card); border-color: var(--border); color: var(--text); }
.btn--ghost:hover { background: var(--card-hover); border-color: var(--accent); transform: translateY(-3px); }
.btn--lg { padding: 17px 34px; font-size: 1.05rem; }

/* ===== Spotlight (shared) ===== */
.spot { position: relative; isolation: isolate; }
.spot::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; z-index: -1;
  background: radial-gradient(220px circle at var(--mx, 50%) var(--my, 0%),
              color-mix(in srgb, var(--accent) 20%, transparent), transparent 60%);
  opacity: 0; transition: opacity .35s var(--ease); pointer-events: none;
}
.spot:hover::before { opacity: 1; }

/* ===== Hero ===== */
.hero {
  min-height: 100vh; display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; padding: 130px clamp(20px, 5vw, 48px) 90px; position: relative;
}
.hero__inner { max-width: 800px; }

.badge {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 7px 15px; border-radius: 100px; margin-bottom: 26px;
  background: color-mix(in srgb, var(--ok) 12%, var(--card));
  border: 1px solid color-mix(in srgb, var(--ok) 35%, var(--border));
  font-size: .82rem; font-weight: 500; color: var(--text); letter-spacing: .2px;
}
.badge__dot { width: 8px; height: 8px; border-radius: 50%; background: var(--ok); position: relative; }
.badge__dot::after {
  content: ""; position: absolute; inset: 0; border-radius: 50%; background: var(--ok);
  animation: ping 1.8s var(--ease) infinite;
}
@keyframes ping { 0% { transform: scale(1); opacity: .7; } 70%,100% { transform: scale(2.6); opacity: 0; } }

.hero__avatar {
  position: relative; width: 150px; height: 150px; margin: 0 auto 30px;
  border-radius: 50%; padding: 4px; background: var(--grad);
  box-shadow: 0 18px 50px -12px rgba(91, 140, 255, .55);
  animation: floaty 6s ease-in-out infinite;
}
.hero__avatar::before {
  content: ""; position: absolute; inset: -3px; border-radius: 50%; z-index: -1;
  background: conic-gradient(from 0deg, var(--accent-3), var(--accent), var(--accent-2), var(--accent-3));
  filter: blur(9px); opacity: .55; animation: spin 7s linear infinite;
}
.hero__avatar img,
.hero__avatar-fallback {
  width: 100%; height: 100%; border-radius: 50%; object-fit: cover;
  border: 4px solid var(--bg); display: block;
}
.hero__avatar-fallback {
  display: grid; place-items: center; background: var(--bg-soft);
  font-family: "Space Grotesk"; font-size: 3rem; font-weight: 700;
  background-image: var(--grad); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
@keyframes floaty { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-9px); } }
@keyframes spin { to { transform: rotate(360deg); } }

.hero__hi { color: var(--accent); font-weight: 600; letter-spacing: 1.5px; margin-bottom: 10px; text-transform: uppercase; font-size: .9rem; }
.hero__name {
  font-size: clamp(2.8rem, 9vw, 5.4rem); font-weight: 700; letter-spacing: -2px;
  background: linear-gradient(115deg, var(--text) 30%, var(--accent) 55%, var(--text) 78%);
  background-size: 220% 100%; -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
  animation: shimmer 6s linear infinite;
}
@keyframes shimmer { to { background-position: -220% 0; } }
.hero__role { font-size: clamp(1.15rem, 3.6vw, 2rem); font-weight: 600; color: var(--muted); margin-top: 12px; }
.grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero__tag { color: var(--muted); font-size: clamp(1rem, 2.4vw, 1.14rem); margin: 24px auto 0; max-width: 620px; }
.hero__cta { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; margin-top: 36px; }
.hero__socials { display: flex; gap: 18px; justify-content: center; margin-top: 32px; color: var(--muted); }
.hero__socials a {
  display: grid; place-items: center; width: 44px; height: 44px; border-radius: 12px;
  border: 1px solid transparent; transition: color .2s, transform .25s var(--ease), border-color .2s, background .2s;
}
.hero__socials a:hover { color: var(--accent); transform: translateY(-4px); border-color: var(--border); background: var(--card); }

.hero__scroll {
  position: absolute; bottom: 30px; left: 50%; transform: translateX(-50%);
  width: 26px; height: 42px; border: 2px solid var(--muted); border-radius: 14px; opacity: .55;
}
.hero__scroll span {
  position: absolute; top: 8px; left: 50%; transform: translateX(-50%);
  width: 4px; height: 8px; border-radius: 2px; background: var(--accent);
  animation: scrolldot 1.6s infinite;
}
@keyframes scrolldot { 0% { opacity: 0; top: 8px; } 40% { opacity: 1; } 80% { opacity: 0; top: 22px; } 100% { opacity: 0; } }

/* ===== Marquee ===== */
.marquee {
  position: relative; overflow: hidden; padding: 22px 0; margin: 10px 0 30px;
  border-top: 1px solid var(--border-soft); border-bottom: 1px solid var(--border-soft);
  background: color-mix(in srgb, var(--bg-soft) 50%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}
.marquee__track { display: flex; gap: 0; width: max-content; animation: scrollx 32s linear infinite; }
.marquee:hover .marquee__track { animation-play-state: paused; }
.marquee__track span {
  display: inline-flex; align-items: center; gap: 10px; padding: 0 30px;
  font-family: "Space Grotesk"; font-weight: 600; font-size: 1.05rem; color: var(--muted);
  white-space: nowrap;
}
.marquee__track span::before { content: "✦"; color: var(--accent); font-size: .8rem; }
@keyframes scrollx { to { transform: translateX(-50%); } }

/* ===== Sections ===== */
.section { max-width: var(--maxw); margin: 0 auto; padding: 96px clamp(20px, 5vw, 48px); position: relative; }
.section__head { position: relative; display: flex; align-items: baseline; gap: 14px; margin-bottom: 46px; }
.section__num { font-family: "Space Grotesk"; color: var(--accent); font-weight: 600; font-size: 1rem; }
.section__title { font-size: clamp(1.8rem, 5vw, 2.6rem); font-weight: 700; letter-spacing: -.5px; }
.section__ghost {
  position: absolute; right: 0; top: 50%; transform: translateY(-58%);
  font-family: "Space Grotesk"; font-weight: 700; font-size: clamp(4rem, 14vw, 8rem);
  line-height: 1; color: transparent; -webkit-text-stroke: 1.5px var(--border);
  opacity: .55; pointer-events: none; user-select: none; z-index: -1;
}

/* ===== About ===== */
.about { display: grid; grid-template-columns: 1.4fr 1fr; gap: 44px; align-items: start; }
.about__text p { color: var(--muted); margin-bottom: 16px; }
.about__text strong { color: var(--text); }
.about__facts { display: flex; flex-direction: column; gap: 11px; margin-top: 24px; }
.fact { display: flex; align-items: center; gap: 11px; font-size: .95rem; color: var(--muted); }
.fact__k { font-size: 1.1rem; }
.about__stats { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.stat {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px 18px; text-align: center; transition: transform .3s var(--ease), border-color .3s, box-shadow .3s;
}
.stat:hover { transform: translateY(-5px); border-color: var(--accent); box-shadow: var(--shadow); }
.stat__n { display: block; font-family: "Space Grotesk"; font-size: 2.4rem; font-weight: 700; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat__l { color: var(--muted); font-size: .85rem; }

/* ===== Skills ===== */
.skills { display: grid; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); gap: 18px; }
.skill-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px; transition: transform .3s var(--ease), border-color .3s, box-shadow .3s;
}
.skill-card:hover { transform: translateY(-6px); border-color: var(--accent); box-shadow: var(--shadow); }
.skill-card h3 { font-size: 1.08rem; margin-bottom: 16px; display: flex; align-items: center; gap: 9px; }
.skill-card h3::before { content: ""; width: 18px; height: 3px; border-radius: 3px; background: var(--grad); }
.tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tags span {
  background: var(--bg-soft); border: 1px solid var(--border); color: var(--muted);
  font-size: .82rem; padding: 6px 12px; border-radius: 9px; transition: color .2s, border-color .2s, transform .2s;
}
.skill-card:hover .tags span, .project:hover .tags span { color: var(--text); }
.tags span:hover { border-color: var(--accent); transform: translateY(-2px); }

/* ===== Projects ===== */
.projects { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 20px; }
.project {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px; display: flex; flex-direction: column;
  transition: transform .25s var(--ease), border-color .3s, box-shadow .3s;
  position: relative; overflow: hidden; transform-style: preserve-3d;
}
.project::after {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 3px; background: var(--grad);
  transform: scaleX(0); transform-origin: left; transition: transform .35s var(--ease);
}
.project:hover { border-color: var(--accent); box-shadow: var(--shadow-glow); }
.project:hover::after { transform: scaleX(1); }
.project__top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.project__icon {
  font-size: 1.5rem; width: 50px; height: 50px; display: grid; place-items: center;
  border-radius: 13px; background: var(--bg-soft); border: 1px solid var(--border);
}
.project__year { font-size: .78rem; color: var(--accent); font-weight: 600; background: var(--bg-soft); padding: 5px 11px; border-radius: 20px; border: 1px solid var(--border); }
.project h3 { font-size: 1.18rem; margin-bottom: 10px; }
.project p { color: var(--muted); font-size: .92rem; margin-bottom: 18px; flex: 1; }
.project .tags { margin-top: auto; }

/* ===== Timeline ===== */
.timeline { position: relative; padding-left: 30px; }
.timeline::before { content: ""; position: absolute; left: 6px; top: 8px; bottom: 8px; width: 2px; background: linear-gradient(var(--accent), var(--accent-2), transparent); }
.tl-item { position: relative; padding-bottom: 38px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-dot { position: absolute; left: -30px; top: 5px; width: 14px; height: 14px; border-radius: 50%; background: var(--grad); box-shadow: 0 0 0 4px var(--bg), 0 0 14px rgba(91,140,255,.6); }
.tl-date { font-size: .82rem; color: var(--accent); font-weight: 600; }
.tl-item h3 { font-size: 1.14rem; margin: 5px 0; }
.tl-sub { color: var(--muted); font-size: .9rem; margin-bottom: 8px; }
.tl-item p:not(.tl-sub) { color: var(--muted); font-size: .92rem; }
.tl-item strong { color: var(--text); }

/* ===== Contact ===== */
.section--contact { text-align: center; }
.contact {
  max-width: 720px; margin: 0 auto; padding: clamp(36px, 6vw, 64px) clamp(24px, 5vw, 56px);
  background: var(--card); border: 1px solid var(--border); border-radius: 26px;
  position: relative; overflow: hidden; box-shadow: var(--shadow);
}
.contact::before {
  content: ""; position: absolute; inset: 0; z-index: 0;
  background: radial-gradient(ellipse 70% 80% at 50% -20%, color-mix(in srgb, var(--accent) 16%, transparent), transparent 70%);
  pointer-events: none;
}
.contact > * { position: relative; z-index: 1; }
.contact__title { font-size: clamp(1.9rem, 6vw, 3rem); margin: 10px 0 16px; }
.contact__text { color: var(--muted); margin-bottom: 30px; }
.contact__alt { display: flex; gap: 14px; justify-content: center; align-items: center; margin-top: 24px; color: var(--muted); font-size: .92rem; flex-wrap: wrap; }
.contact__alt a { color: var(--muted); transition: color .2s; }
.contact__alt a:hover { color: var(--accent); }

/* ===== Footer ===== */
.footer { text-align: center; padding: 44px 20px; color: var(--muted); font-size: .88rem; border-top: 1px solid var(--border); margin-top: 40px; }
.footer a { color: var(--accent); }

/* ===== Reveal animation ===== */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

/* ===== Responsive ===== */
@media (max-width: 860px) {
  .about { grid-template-columns: 1fr; }
  .section__ghost { display: none; }
}
@media (max-width: 680px) {
  .nav__links {
    position: fixed; top: 72px; right: 16px; left: 16px;
    flex-direction: column; gap: 4px; padding: 14px;
    background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
    box-shadow: var(--shadow);
    transform: translateY(-12px); opacity: 0; pointer-events: none; transition: .28s var(--ease);
  }
  .nav__links.open { transform: none; opacity: 1; pointer-events: auto; }
  .nav__links a { padding: 11px 8px; }
  .nav__links a::after { display: none; }
  .menu-btn { display: grid; }
  .about__stats { grid-template-columns: 1fr 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; }
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}