/* ============================================================
   PORTFOLIO — OUAMRANE Younes
   Thème : navy profond + accent jaune (inspiré maquette)
   ============================================================ */

:root {
  --bg: #0a1420;
  --bg-2: #0d1928;
  --surface: #101f30;
  --surface-2: #142639;
  --border: rgba(255, 255, 255, 0.08);
  --text: #eaf0f8;
  --muted: #97a8bc;
  --accent: #f6c945;
  --accent-dark: #e0b02f;
  --accent-ink: #142033;
  --radius: 14px;
  --radius-lg: 22px;
  --nav-h: 76px;
  --font-display: "Space Grotesk", sans-serif;
  --font-body: "Inter", sans-serif;
  --font-mono: "JetBrains Mono", monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16.5px;
  line-height: 1.7;
  overflow-x: hidden;
}

::selection { background: var(--accent); color: var(--accent-ink); }

/* ---------- fond ambiant (grille réseau) ---------- */
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -2;
  background-image:
    linear-gradient(rgba(246, 201, 69, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(246, 201, 69, 0.035) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 30%, transparent 75%);
}

.bg-glow {
  position: fixed;
  z-index: -1;
  width: 620px;
  height: 620px;
  border-radius: 50%;
  filter: blur(140px);
  opacity: 0.14;
  pointer-events: none;
}
.bg-glow--1 { background: var(--accent); top: -240px; right: -160px; }
.bg-glow--2 { background: #2e6bd6; bottom: -280px; left: -200px; opacity: 0.10; }

/* ---------- conteneurs ---------- */
.container { width: min(1160px, 92%); margin-inline: auto; }
.container--narrow { width: min(860px, 92%); margin-inline: auto; }

section { padding: 96px 0; }

/* ---------- typographie ---------- */
h1, h2, h3, h4 { font-family: var(--font-display); line-height: 1.15; letter-spacing: -0.01em; }

h1 { font-size: clamp(2.4rem, 5.4vw, 4rem); font-weight: 700; }
h2 { font-size: clamp(1.7rem, 3.4vw, 2.4rem); font-weight: 700; margin-bottom: 18px; }
h3 { font-size: 1.25rem; font-weight: 600; }

p { color: var(--muted); }
p strong { color: var(--text); }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  display: block;
  margin-bottom: 14px;
}

.section-head { max-width: 640px; margin-bottom: 48px; }

/* ---------- navbar ---------- */
.nav-wrap {
  position: fixed;
  top: 18px;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  justify-content: center;
  padding-inline: 4%;
}

.nav {
  display: flex;
  align-items: center;
  gap: 34px;
  background: rgba(13, 25, 40, 0.72);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 10px 14px 10px 26px;
  transition: box-shadow 0.3s, background 0.3s;
}
.nav.scrolled { box-shadow: 0 14px 44px rgba(0, 0, 0, 0.5); background: rgba(13, 25, 40, 0.92); }

.nav__logo {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text);
}
.nav__logo:hover { text-decoration: none; }
.nav__logo span { color: var(--accent); }

.nav__links { display: flex; gap: 26px; list-style: none; }
.nav__links a {
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 500;
  position: relative;
  padding-block: 6px;
}
.nav__links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 2px;
  background: var(--accent);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}
.nav__links a:hover, .nav__links a.active { color: var(--text); text-decoration: none; }
.nav__links a:hover::after, .nav__links a.active::after { transform: scaleX(1); }

.nav__burger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.nav__burger span { width: 22px; height: 2px; background: var(--text); border-radius: 2px; transition: 0.3s; }
.nav__burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__burger.open span:nth-child(2) { opacity: 0; }
.nav__burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- boutons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.98rem;
  padding: 13px 26px;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s;
}
.btn:hover { text-decoration: none; transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn--primary { background: var(--accent); color: var(--accent-ink); }
.btn--primary:hover { background: var(--accent-dark); box-shadow: 0 10px 28px rgba(246, 201, 69, 0.28); }

.btn--ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn--ghost:hover { border-color: var(--accent); color: var(--accent); }

/* ---------- hero ---------- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-h);
}

.hero__grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 64px;
  align-items: center;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 7px 16px;
  margin-bottom: 26px;
}
.hero__badge .dot {
  width: 8px; height: 8px;
  background: #4ade80;
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.5); }
  50% { box-shadow: 0 0 0 7px rgba(74, 222, 128, 0); }
}

.hero h1 .accent { color: var(--accent); }
.hero__sub { margin: 24px 0 36px; font-size: 1.1rem; max-width: 520px; }
.hero__cta { display: flex; gap: 16px; flex-wrap: wrap; }

.hero__socials { display: flex; gap: 14px; margin-top: 40px; }
.hero__socials a {
  width: 44px; height: 44px;
  display: grid;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--muted);
  transition: 0.25s;
}
.hero__socials a:hover {
  color: var(--accent-ink);
  background: var(--accent);
  border-color: var(--accent);
  transform: translateY(-3px);
  text-decoration: none;
}
.hero__socials svg { width: 20px; height: 20px; }

/* ---------- terminal (signature) ---------- */
.terminal {
  background: #0b1524;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.55);
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: 0.86rem;
  transform: perspective(1200px) rotateY(-4deg) rotateX(2deg);
  transition: transform 0.5s ease;
}
.terminal:hover { transform: perspective(1200px) rotateY(0) rotateX(0); }

.terminal__bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 13px 18px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.terminal__bar i { width: 11px; height: 11px; border-radius: 50%; }
.terminal__bar i:nth-child(1) { background: #ff5f57; }
.terminal__bar i:nth-child(2) { background: #febc2e; }
.terminal__bar i:nth-child(3) { background: #28c840; }
.terminal__title { margin-left: 10px; color: var(--muted); font-size: 0.78rem; }

.terminal__body { padding: 22px 24px; min-height: 300px; line-height: 1.9; }
.terminal__body .prompt { color: var(--accent); }
.terminal__body .cmd { color: var(--text); }
.terminal__body .out { color: var(--muted); }
.terminal__body .ok { color: #4ade80; }
.cursor {
  display: inline-block;
  width: 9px; height: 17px;
  background: var(--accent);
  vertical-align: -3px;
  animation: blink 1s step-end infinite;
}
@keyframes blink { 50% { opacity: 0; } }

/* ---------- stats ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: -20px;
}
.stat {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  text-align: center;
  transition: 0.3s;
}
.stat:hover { border-color: rgba(246, 201, 69, 0.4); transform: translateY(-4px); }
.stat__num { font-family: var(--font-display); font-size: 2.2rem; font-weight: 700; color: var(--accent); }
.stat__label { font-size: 0.88rem; color: var(--muted); margin-top: 4px; }

/* ---------- timeline (parcours) ---------- */
.timeline { position: relative; padding-left: 34px; }
.timeline::before {
  content: "";
  position: absolute;
  left: 8px; top: 6px; bottom: 6px;
  width: 2px;
  background: linear-gradient(var(--accent), transparent);
}
.timeline__item { position: relative; padding-bottom: 42px; }
.timeline__item:last-child { padding-bottom: 0; }
.timeline__item::before {
  content: "";
  position: absolute;
  left: -32px; top: 7px;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--bg);
  border: 3px solid var(--accent);
}
.timeline__date {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
  letter-spacing: 0.06em;
}
.timeline__item h3 { margin: 6px 0 6px; }
.timeline__item p { font-size: 0.95rem; }

/* ---------- cartes ---------- */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.cards--2 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 30px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  position: relative;
  overflow: hidden;
  transition: transform 0.3s ease, border-color 0.3s, box-shadow 0.3s;
}
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(500px circle at var(--mx, 50%) var(--my, 0%), rgba(246, 201, 69, 0.07), transparent 45%);
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
}
.card:hover { transform: translateY(-6px); border-color: rgba(246, 201, 69, 0.35); box-shadow: 0 22px 50px rgba(0, 0, 0, 0.4); }
.card:hover::before { opacity: 1; }

.card__icon {
  width: 50px; height: 50px;
  display: grid;
  place-items: center;
  background: rgba(246, 201, 69, 0.1);
  border: 1px solid rgba(246, 201, 69, 0.25);
  border-radius: 13px;
  color: var(--accent);
  font-size: 1.3rem;
}
.card p { font-size: 0.95rem; flex-grow: 1; }

.card__link {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.93rem;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.card__link::after { content: "→"; transition: transform 0.25s; }
.card__link:hover { text-decoration: none; }
.card__link:hover::after { transform: translateX(5px); }

.tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 4px 12px;
  border-radius: 999px;
  background: rgba(246, 201, 69, 0.08);
  border: 1px solid rgba(246, 201, 69, 0.22);
  color: var(--accent);
}

/* ---------- compétences ---------- */
.skills-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.skill-block {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 30px;
}
.skill-block h3 { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; }
.skill-block h3 .card__icon { width: 40px; height: 40px; font-size: 1.05rem; border-radius: 10px; }

.skill { margin-bottom: 16px; }
.skill:last-child { margin-bottom: 0; }
.skill__row { display: flex; justify-content: space-between; font-size: 0.9rem; margin-bottom: 7px; }
.skill__row span:last-child { font-family: var(--font-mono); color: var(--accent); font-size: 0.8rem; }
.skill__bar { height: 7px; background: var(--bg-2); border-radius: 99px; overflow: hidden; }
.skill__fill {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--accent-dark), var(--accent));
  border-radius: 99px;
  transition: width 1.2s cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------- tableau (style maquette) ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; font-size: 0.95rem; }
thead { background: var(--surface-2); }
th {
  text-align: left;
  padding: 15px 20px;
  font-family: var(--font-display);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  border-bottom: 1px solid var(--border);
}
td { padding: 15px 20px; border-bottom: 1px solid var(--border); color: var(--muted); }
td:first-child { color: var(--text); font-weight: 500; }
tbody tr { transition: background 0.2s; }
tbody tr:hover { background: rgba(246, 201, 69, 0.04); }
tbody tr:last-child td { border-bottom: none; }

/* ---------- page article (sommaire + contenu) ---------- */
.page-hero { padding: calc(var(--nav-h) + 80px) 0 48px; }
.page-hero p { max-width: 640px; font-size: 1.05rem; }

.breadcrumb {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 20px;
}
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb .sep { margin: 0 8px; opacity: 0.5; }

.article-layout {
  display: grid;
  grid-template-columns: 250px 1fr;
  gap: 64px;
  align-items: start;
  padding-bottom: 96px;
}

.toc {
  position: sticky;
  top: calc(var(--nav-h) + 30px);
}
.toc__title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 16px;
}
.toc ul { list-style: none; }
.toc li { margin-bottom: 4px; }
.toc a {
  display: block;
  color: var(--muted);
  font-size: 0.92rem;
  padding: 7px 14px;
  border-left: 2px solid var(--border);
  transition: 0.2s;
}
.toc a:hover { color: var(--text); text-decoration: none; }
.toc a.active { color: var(--accent); border-left-color: var(--accent); background: rgba(246, 201, 69, 0.05); }

.article h2 { margin-top: 56px; scroll-margin-top: calc(var(--nav-h) + 30px); }
.article h2:first-child { margin-top: 0; }
.article h3 { margin: 32px 0 12px; color: var(--accent); }
.article p { margin-bottom: 16px; }
.article ul, .article ol { color: var(--muted); padding-left: 24px; margin-bottom: 16px; }
.article li { margin-bottom: 8px; }
.article .table-wrap { margin: 24px 0; }
.article code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: rgba(246, 201, 69, 0.09);
  color: var(--accent);
  padding: 2px 7px;
  border-radius: 6px;
}

.codeblock {
  background: #0b1524;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.8;
  color: var(--muted);
  overflow-x: auto;
  margin: 24px 0;
}
.codeblock .c-accent { color: var(--accent); }
.codeblock .c-ok { color: #4ade80; }

.callout {
  display: flex;
  gap: 16px;
  background: rgba(246, 201, 69, 0.06);
  border: 1px solid rgba(246, 201, 69, 0.25);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin: 24px 0;
}
.callout p { margin: 0; font-size: 0.95rem; }

/* ---------- fiche méta (pages projet/ressource) ---------- */
.meta-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin: 32px 0 8px;
}
.meta-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
}
.meta-item span {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 4px;
}
.meta-item strong { font-size: 0.95rem; }

/* ---------- contact ---------- */
.contact-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 48px; }

.contact-info a { display: block; margin-bottom: 4px; }
.contact-list { list-style: none; margin-top: 24px; }
.contact-list li {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  color: var(--muted);
}
.contact-list .card__icon { width: 42px; height: 42px; font-size: 1.05rem; flex-shrink: 0; }

.form { display: flex; flex-direction: column; gap: 16px; }
.form input, .form textarea {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 15px 18px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: border-color 0.25s, box-shadow 0.25s;
}
.form input:focus, .form textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(246, 201, 69, 0.15);
}
.form textarea { min-height: 150px; resize: vertical; }
.form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* ---------- footer ---------- */
footer {
  border-top: 1px solid var(--border);
  padding: 44px 0;
  margin-top: 40px;
}
.footer__grid {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}
.footer__grid p { font-size: 0.88rem; }
.footer__links { display: flex; gap: 24px; list-style: none; }
.footer__links a { color: var(--muted); font-size: 0.9rem; }
.footer__links a:hover { color: var(--accent); }

/* ---------- barre de progression de lecture (bas de page) ---------- */
.progress-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  height: 4px;
  width: 0%;
  background: linear-gradient(90deg, var(--accent-dark), var(--accent));
  box-shadow: 0 0 12px rgba(246, 201, 69, 0.5);
  z-index: 200;
  transition: width 0.08s linear;
}

/* ---------- langues ---------- */
.langs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 24px;
}
.lang {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  text-align: center;
  transition: 0.3s;
}
.lang:hover { border-color: rgba(246, 201, 69, 0.4); transform: translateY(-4px); }
.lang__flag { font-size: 1.9rem; display: block; margin-bottom: 8px; }
.lang h4 { font-size: 1.02rem; margin-bottom: 2px; }
.lang span {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  letter-spacing: 0.06em;
}

@media (max-width: 700px) {
  .langs { grid-template-columns: repeat(2, 1fr); }
}

/* ---------- back to top ---------- */
.to-top {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 48px; height: 48px;
  display: grid;
  place-items: center;
  background: var(--accent);
  color: var(--accent-ink);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1.2rem;
  opacity: 0;
  transform: translateY(14px);
  pointer-events: none;
  transition: 0.3s;
  z-index: 90;
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.4);
}
.to-top.visible { opacity: 1; transform: translateY(0); pointer-events: auto; }
.to-top:hover { background: var(--accent-dark); }

/* ---------- reveal on scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.in { opacity: 1; transform: translateY(0); }
.reveal[data-delay="1"] { transition-delay: 0.12s; }
.reveal[data-delay="2"] { transition-delay: 0.24s; }
.reveal[data-delay="3"] { transition-delay: 0.36s; }

/* ---------- responsive ---------- */
@media (max-width: 980px) {
  .hero__grid { grid-template-columns: 1fr; gap: 48px; }
  .terminal { transform: none; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .skills-grid, .contact-grid, .cards--2 { grid-template-columns: 1fr; }
  .article-layout { grid-template-columns: 1fr; gap: 32px; }
  .toc { position: static; }
  .meta-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 700px) {
  section { padding: 72px 0; }
  .cards { grid-template-columns: 1fr; }
  .form .row { grid-template-columns: 1fr; }

  .nav { width: 100%; justify-content: space-between; }
  .nav__burger { display: flex; }
  .nav__links {
    position: absolute;
    top: calc(100% + 12px);
    left: 0; right: 0;
    flex-direction: column;
    gap: 4px;
    background: rgba(13, 25, 40, 0.97);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 18px;
    opacity: 0;
    transform: translateY(-8px);
    pointer-events: none;
    transition: 0.3s;
  }
  .nav__links.open { opacity: 1; transform: translateY(0); pointer-events: auto; }
  .nav__links a { display: block; padding: 10px 14px; }
  .nav .btn { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}