/* ============================================================
   PORTFOLIO — STYLES
   Thème clair par défaut, sombre via data-theme ou préférence OS
   ============================================================ */

:root {
  --bg: #f8fafc;
  --bg-alt: #eef2f7;
  --surface: #ffffff;
  --surface-2: #f1f5f9;
  --text: #0f172a;
  --text-soft: #475569;
  --text-faint: #94a3b8;
  --border: #e2e8f0;
  --accent: #4f46e5;
  --accent-soft: #eef2ff;
  --accent-contrast: #ffffff;
  --shadow: 0 1px 3px rgba(15, 23, 42, .06), 0 8px 24px rgba(15, 23, 42, .07);
  --shadow-lg: 0 4px 12px rgba(15, 23, 42, .1), 0 16px 40px rgba(15, 23, 42, .12);
  --radius: 14px;
  --terminal-bg: #0f172a;
  --terminal-text: #cbd5e1;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0b1120;
    --bg-alt: #0f172a;
    --surface: #131c31;
    --surface-2: #1a2440;
    --text: #e2e8f0;
    --text-soft: #94a3b8;
    --text-faint: #64748b;
    --border: #24304d;
    --accent: #818cf8;
    --accent-soft: #1e2547;
    --accent-contrast: #0b1120;
    --shadow: 0 1px 3px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .35);
    --shadow-lg: 0 4px 12px rgba(0, 0, 0, .4), 0 16px 40px rgba(0, 0, 0, .45);
    --terminal-bg: #060a14;
    --terminal-text: #cbd5e1;
  }
}
:root[data-theme="dark"] {
  --bg: #0b1120;
  --bg-alt: #0f172a;
  --surface: #131c31;
  --surface-2: #1a2440;
  --text: #e2e8f0;
  --text-soft: #94a3b8;
  --text-faint: #64748b;
  --border: #24304d;
  --accent: #818cf8;
  --accent-soft: #1e2547;
  --accent-contrast: #0b1120;
  --shadow: 0 1px 3px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .35);
  --shadow-lg: 0 4px 12px rgba(0, 0, 0, .4), 0 16px 40px rgba(0, 0, 0, .45);
  --terminal-bg: #060a14;
  --terminal-text: #cbd5e1;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }

.container { max-width: 1100px; margin: 0 auto; padding: 0 1.25rem; }

/* ===== Header ===== */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex; align-items: center; gap: 1.5rem;
  height: 62px;
}
.logo {
  font-weight: 800; font-size: 1.3rem; letter-spacing: -.02em;
}
.logo-dot { color: var(--accent); }
.main-nav { display: flex; gap: 1.4rem; margin-left: auto; }
.main-nav a {
  font-size: .93rem; font-weight: 500; color: var(--text-soft);
  transition: color .15s;
}
.main-nav a:hover { color: var(--text); }
.header-actions { display: flex; align-items: center; gap: .6rem; }

.lang-switch {
  display: flex; border: 1px solid var(--border); border-radius: 99px;
  overflow: hidden; background: var(--surface);
}
.lang-switch button {
  border: 0; background: transparent; color: var(--text-faint);
  font-size: .74rem; font-weight: 700; padding: .35rem .55rem;
  transition: all .15s;
}
.lang-switch button.active { background: var(--accent); color: var(--accent-contrast); }
.lang-switch button:not(.active):hover { color: var(--text); }

.theme-toggle {
  width: 34px; height: 34px; border-radius: 99px;
  border: 1px solid var(--border); background: var(--surface);
  color: var(--text-soft);
  display: grid; place-items: center;
}
.theme-toggle:hover { color: var(--text); }
.icon-moon { display: none; }
:root[data-theme="dark"] .icon-sun { display: none; }
:root[data-theme="dark"] .icon-moon { display: block; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .icon-sun { display: none; }
  :root:not([data-theme="light"]) .icon-moon { display: block; }
}

/* ===== Hero ===== */
.hero { padding: 4.5rem 0 4rem; }
.hero-inner {
  display: grid; grid-template-columns: 1.15fr .85fr;
  gap: 3rem; align-items: center;
}
.hero-hello {
  color: var(--accent); font-weight: 700; font-size: 1.05rem;
  margin-bottom: .4rem; letter-spacing: .01em;
}
.hero-title {
  font-size: clamp(2rem, 4.5vw, 3rem);
  line-height: 1.12; letter-spacing: -.03em; font-weight: 800;
  margin-bottom: 1.1rem;
}
.hero-tagline { color: var(--text-soft); font-size: 1.06rem; max-width: 34rem; margin-bottom: 1.8rem; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: .7rem; }

.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .68rem 1.25rem; border-radius: 10px;
  font-weight: 600; font-size: .93rem;
  border: 1px solid transparent;
  transition: all .15s;
}
.btn-primary { background: var(--accent); color: var(--accent-contrast); }
.btn-primary:hover { filter: brightness(1.1); transform: translateY(-1px); }
.btn-ghost { border-color: var(--border); background: var(--surface); color: var(--text); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

/* Menu CV */
.cv-menu { position: relative; display: inline-flex; }
.cv-menu .btn { width: 100%; justify-content: center; }
.cv-caret { transition: transform .15s; }
.cv-menu.open .cv-caret { transform: rotate(180deg); }
.cv-menu-list {
  position: absolute; top: calc(100% + 6px); left: 0; min-width: 100%;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 10px; box-shadow: var(--shadow-lg);
  padding: .35rem; z-index: 40;
  display: none; flex-direction: column; gap: .15rem;
}
.cv-menu.open .cv-menu-list { display: flex; }
.cv-menu-list a {
  display: flex; align-items: center; gap: .55rem;
  padding: .55rem .8rem; border-radius: 7px;
  font-size: .89rem; font-weight: 600; white-space: nowrap;
}
.cv-menu-list a:hover { background: var(--accent-soft); color: var(--accent); }
.cv-menu-list a svg { width: 15px; height: 15px; color: var(--accent); }

/* Terminal décoratif */
.terminal-card {
  background: var(--terminal-bg); border-radius: var(--radius);
  box-shadow: var(--shadow-lg); overflow: hidden;
  border: 1px solid rgba(255, 255, 255, .07);
}
.terminal-bar { display: flex; gap: 7px; padding: 12px 14px; }
.terminal-bar span { width: 11px; height: 11px; border-radius: 50%; background: #334155; }
.terminal-bar span:nth-child(1) { background: #f87171; }
.terminal-bar span:nth-child(2) { background: #fbbf24; }
.terminal-bar span:nth-child(3) { background: #34d399; }
.terminal-body {
  padding: .4rem 1.1rem 1.3rem;
  font-family: "Cascadia Code", "Consolas", monospace;
  font-size: .82rem; line-height: 1.75;
  color: var(--terminal-text);
  overflow-x: auto;
}
.t-prompt { color: #34d399; font-weight: 700; }
.t-out { color: #94a3b8; }
.t-ok { color: #34d399; }
.t-cursor { animation: blink 1.1s steps(1) infinite; color: #e2e8f0; }
@keyframes blink { 50% { opacity: 0; } }

/* ===== Sections ===== */
.section { padding: 4rem 0; }
.section-alt { background: var(--bg-alt); }
.section-head { margin-bottom: 2.2rem; }
.section-head h2 {
  font-size: clamp(1.5rem, 3vw, 2rem); letter-spacing: -.02em;
  margin-bottom: .3rem;
}
.section-head p { color: var(--text-soft); }

/* ===== Compétences ===== */
.skills-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1rem;
}
.skill-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.3rem;
  transition: transform .15s, box-shadow .15s;
}
.skill-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.skill-icon {
  width: 40px; height: 40px; border-radius: 10px;
  background: var(--accent-soft); color: var(--accent);
  display: grid; place-items: center; margin-bottom: .8rem;
}
.skill-icon svg { width: 21px; height: 21px; }
.skill-card h3 { font-size: 1rem; margin-bottom: .35rem; }
.skill-card p { font-size: .87rem; color: var(--text-soft); }

/* ===== Filtres ===== */
.filters { display: flex; flex-wrap: wrap; gap: .5rem; margin-bottom: 1.8rem; }
.filter-btn {
  border: 1px solid var(--border); background: var(--surface);
  color: var(--text-soft); border-radius: 99px;
  padding: .42rem 1rem; font-size: .85rem; font-weight: 600;
  transition: all .15s;
}
.filter-btn:hover { border-color: var(--cat-color, var(--accent)); color: var(--text); }
.filter-btn.active {
  background: var(--cat-color, var(--accent));
  border-color: var(--cat-color, var(--accent));
  color: #fff;
}

/* ===== Cartes projets ===== */
.projects-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.3rem;
}
.project-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
  display: flex; flex-direction: column;
  transition: transform .18s, box-shadow .18s;
}
.project-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.card-cover {
  position: relative; aspect-ratio: 16/8.5;
  background: var(--surface-2); overflow: hidden;
}
.card-cover img { width: 100%; height: 100%; object-fit: cover; object-position: top; }
.card-cover-fallback {
  height: 100%; display: grid; place-items: center; color: var(--text-faint);
}
.card-cover-fallback svg { width: 44px; height: 44px; }
.card-cat {
  position: absolute; top: .7rem; left: .7rem;
  background: var(--cat-color, var(--accent)); color: #fff;
  font-size: .68rem; font-weight: 700; letter-spacing: .03em;
  padding: .25rem .65rem; border-radius: 99px;
  text-transform: uppercase;
}
.card-body { padding: 1.15rem 1.2rem 1.3rem; display: flex; flex-direction: column; flex: 1; }
.card-period { font-size: .76rem; color: var(--text-faint); font-weight: 600; letter-spacing: .02em; }
.card-body h3 { font-size: 1.06rem; line-height: 1.35; margin: .3rem 0 .45rem; }
.card-body p { font-size: .87rem; color: var(--text-soft); flex: 1; }
.card-tags { display: flex; flex-wrap: wrap; gap: .35rem; margin-top: .8rem; }
.card-tags span {
  font-size: .7rem; font-weight: 600;
  background: var(--accent-soft); color: var(--accent);
  padding: .18rem .55rem; border-radius: 99px;
}
.card-link {
  margin-top: .9rem; font-size: .86rem; font-weight: 700; color: var(--accent);
  display: inline-flex; align-items: center; gap: .35rem;
}
.card-link svg { width: 15px; height: 15px; transition: transform .15s; }
.project-card:hover .card-link svg { transform: translateX(3px); }

/* ===== Contact ===== */
.contact-inner .section-head { text-align: center; }
.contact-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: .8rem; }
.contact-btn {
  display: inline-flex; align-items: center; gap: .55rem;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 12px; padding: .8rem 1.4rem;
  font-weight: 600; font-size: .93rem;
  transition: all .15s;
}
.contact-btn svg { width: 19px; height: 19px; color: var(--accent); }
.contact-btn:hover { border-color: var(--accent); transform: translateY(-2px); box-shadow: var(--shadow); }

/* ===== Détail projet ===== */
.project-detail { padding: 2.5rem 1.25rem 4rem; }
.back-link {
  display: inline-flex; align-items: center; gap: .45rem;
  font-size: .89rem; font-weight: 600; color: var(--text-soft);
  margin-bottom: 1.8rem; transition: color .15s;
}
.back-link:hover { color: var(--accent); }
.back-link svg { width: 15px; height: 15px; transform: rotate(180deg); }

.detail-header { margin-bottom: 2.5rem; }
.detail-meta { display: flex; align-items: center; gap: .8rem; margin-bottom: .8rem; }
.detail-meta .card-cat { position: static; }
.detail-header h1 {
  font-size: clamp(1.6rem, 3.5vw, 2.3rem);
  letter-spacing: -.02em; line-height: 1.2; margin-bottom: .8rem;
}
.detail-tags { margin-top: 0; }
.btn-visit { margin-top: 1.1rem; }
.btn-visit svg { width: 15px; height: 15px; }

.detail-section {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.6rem 1.7rem;
  margin-bottom: 1.2rem;
}
.detail-section-head {
  display: flex; align-items: center; gap: .8rem; margin-bottom: 1rem;
}
.detail-num {
  width: 30px; height: 30px; flex-shrink: 0;
  background: var(--accent); color: var(--accent-contrast);
  border-radius: 9px; display: grid; place-items: center;
  font-weight: 800; font-size: .9rem;
}
.detail-section-head h2 { font-size: 1.15rem; letter-spacing: -.01em; }
.detail-text { color: var(--text-soft); font-size: .96rem; white-space: pre-line; }

.detail-gallery {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: .9rem; margin-top: 1.2rem;
}
.gallery-img {
  border-radius: 10px; border: 1px solid var(--border);
  cursor: zoom-in; transition: transform .15s;
  width: 100%; object-fit: cover;
}
.gallery-img:hover { transform: scale(1.015); }

/* Docs */
.docs-list { display: grid; grid-template-columns: minmax(0, 1fr); gap: .6rem; }
.doc-item {
  display: flex; align-items: center; gap: .9rem; min-width: 0;
  border: 1px solid var(--border); border-radius: 11px;
  padding: .75rem 1rem; background: var(--surface-2);
  transition: all .15s;
}
.doc-item:hover { border-color: var(--accent); }
.doc-icon {
  width: 38px; height: 38px; flex-shrink: 0; border-radius: 9px;
  background: #fee2e2; color: #dc2626;
  display: grid; place-items: center;
}
:root[data-theme="dark"] .doc-icon { background: #3f1d1d; color: #f87171; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .doc-icon { background: #3f1d1d; color: #f87171; }
}
.doc-icon svg { width: 19px; height: 19px; }
.doc-info { display: flex; flex-direction: column; min-width: 0; flex: 1; }
.doc-name { font-weight: 600; font-size: .91rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.doc-size { font-size: .76rem; color: var(--text-faint); }
.doc-dl { color: var(--text-faint); }
.doc-dl svg { width: 17px; height: 17px; }
.doc-item:hover .doc-dl { color: var(--accent); }

/* Compétences détail */
.skills-blocks { display: grid; gap: 1.1rem; }
.skills-block h3 {
  font-size: .95rem; color: var(--accent); margin-bottom: .45rem;
}
.skills-block ul { padding-left: 1.2rem; display: grid; gap: .3rem; }
.skills-block li { font-size: .89rem; color: var(--text-soft); }

/* ===== Footer ===== */
.site-footer { border-top: 1px solid var(--border); padding: 1.6rem 0; }
.footer-inner {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: .5rem;
  font-size: .84rem; color: var(--text-faint);
}

/* ===== Lightbox ===== */
.lightbox[hidden] { display: none; }
.lightbox {
  position: fixed; inset: 0; z-index: 100;
  background: rgba(2, 6, 23, .88);
  display: flex; align-items: center; justify-content: center;
  padding: 2rem; cursor: zoom-out;
}
.lightbox img {
  max-width: 95%; max-height: 92vh;
  border-radius: 10px; box-shadow: var(--shadow-lg);
}
.lightbox-close {
  position: absolute; top: 1rem; right: 1.4rem;
  background: transparent; border: 0; color: #fff;
  font-size: 2.4rem; line-height: 1;
}

/* ===== Responsive ===== */
@media (max-width: 860px) {
  .hero-inner { grid-template-columns: 1fr; gap: 2.2rem; }
  .hero { padding: 3rem 0 2.8rem; }
  .hero-visual { max-width: 480px; }
}
@media (max-width: 640px) {
  .main-nav { display: none; }
  .header-inner { gap: .8rem; }
  .logo { margin-right: auto; }
  .section { padding: 2.8rem 0; }
  .detail-section { padding: 1.2rem 1.1rem; }
  .hero-ctas .btn { flex: 1 1 auto; justify-content: center; }
}