/* ==========================================================================
   Loup_du_69 — Portfolio professionnel
   Design system : dossier / CV éditorial
   ========================================================================== */

:root {
  --bg:            #F6F4EF;
  --surface:       #FFFFFF;
  --ink:           #191C22;
  --ink-dim:       #5B606A;
  --ink-faint:     #93969E;
  --line:          #E4E1D6;
  --line-strong:   #D6D2C4;
  --accent:        #23395B;
  --accent-soft:   #E8ECF1;
  --accent-2:      #B8892F;
  --accent-2-soft: #F5EEDD;
  --radius-lg:     14px;
  --radius:        10px;
  --radius-sm:     6px;
  --shadow:        0 1px 2px rgba(25,28,34,0.04), 0 8px 24px rgba(25,28,34,0.05);
  --shadow-hover:  0 4px 10px rgba(25,28,34,0.06), 0 16px 36px rgba(25,28,34,0.08);
  --serif: 'Fraunces', Georgia, serif;
  --sans:  'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --mono:  'IBM Plex Mono', ui-monospace, monospace;
  --ease:  cubic-bezier(0.4, 0, 0.2, 1);
  --container: 1080px;
}

/* ---------- Reset & base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--ink);
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
button { cursor: pointer; font-family: inherit; border: none; background: none; color: inherit; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 3px;
}

::selection { background: var(--accent-2-soft); color: var(--ink); }

.wrap {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 2rem;
}

/* ---------- Eyebrow / labels ---------- */
.eyebrow {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-2);
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  margin-bottom: 1rem;
}
.eyebrow::before {
  content: '';
  width: 18px;
  height: 1px;
  background: var(--accent-2);
  display: inline-block;
}

/* ---------- Nav ---------- */
#main-nav {
  position: sticky; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(246,244,239,0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
#main-nav .wrap {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
}
.nav-logo {
  font-family: var(--serif);
  font-weight: 600; font-size: 1.15rem;
  letter-spacing: 0.01em;
  display: flex; align-items: baseline; gap: 0.4rem;
}
.nav-logo .mark {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent-2);
  display: inline-block;
  margin-right: 0.15rem;
}
.nav-logo .dim { color: var(--ink-faint); font-weight: 400; font-family: var(--sans); font-size: 0.95rem; }
.nav-links { display: flex; align-items: center; gap: 2.2rem; }
.nav-links a {
  font-size: 0.87rem; font-weight: 500; color: var(--ink-dim);
  transition: color 0.2s var(--ease);
  position: relative;
}
.nav-links a::after {
  content: ''; position: absolute; bottom: -6px; left: 0; right: 0; height: 2px;
  background: var(--accent-2); transform: scaleX(0); transform-origin: left;
  transition: transform 0.2s var(--ease);
}
.nav-links a:hover, .nav-links a.active-link { color: var(--ink); }
.nav-links a:hover::after, .nav-links a.active-link::after { transform: scaleX(1); }
.nav-cta {
  padding: 9px 18px; border-radius: var(--radius-sm);
  background: var(--accent); color: #fff !important;
  font-size: 0.85rem !important; font-weight: 600 !important;
}
.nav-cta::after { display: none; }
.nav-cta:hover { background: #1a2c48; }

.nav-toggle {
  display: none;
  width: 36px; height: 36px;
  flex-direction: column; align-items: center; justify-content: center; gap: 5px;
}
.nav-toggle span { width: 20px; height: 2px; background: var(--ink); transition: transform 0.2s var(--ease), opacity 0.2s var(--ease); }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 860px) {
  .nav-links {
    position: absolute; top: 72px; left: 0; right: 0;
    background: var(--surface); border-bottom: 1px solid var(--line);
    flex-direction: column; align-items: flex-start; gap: 0;
    padding: 0.5rem 2rem 1.2rem;
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links a { width: 100%; padding: 0.7rem 0; }
  .nav-links a::after { display: none; }
  .nav-cta { margin-top: 0.5rem; text-align: center; }
  .nav-toggle { display: flex; }
}

/* ---------- Hero ---------- */
.hero {
  padding: 6rem 0 5rem;
  border-bottom: 1px solid var(--line);
}
.hero-grid {
  display: grid; grid-template-columns: 1.3fr 1fr; gap: 3.5rem; align-items: center;
}
.hero-title {
  font-family: var(--serif);
  font-weight: 600; font-size: clamp(2.4rem, 4.6vw, 3.6rem);
  line-height: 1.08; letter-spacing: -0.01em; margin-bottom: 1.3rem;
  color: var(--ink);
}
.hero-title em { font-style: italic; color: var(--accent); font-weight: 500; }
.hero-sub {
  font-size: 1.05rem; color: var(--ink-dim); max-width: 46ch; margin-bottom: 2rem;
}
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }

.hero-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 1.8rem; box-shadow: var(--shadow);
}
.hero-card-top { display: flex; align-items: center; gap: 1rem; padding-bottom: 1.2rem; border-bottom: 1px solid var(--line); margin-bottom: 1.2rem; }
.hero-card-avatar { width: 56px; height: 56px; border-radius: 50%; object-fit: cover; border: 1px solid var(--line); }
.hero-card-top strong { font-family: var(--serif); font-size: 1.05rem; display: block; }
.hero-card-top span { font-size: 0.82rem; color: var(--ink-dim); }
.hero-facts { display: flex; flex-direction: column; gap: 0.75rem; }
.hero-fact { display: flex; justify-content: space-between; font-size: 0.85rem; gap: 1rem; }
.hero-fact dt { color: var(--ink-faint); }
.hero-fact dd { text-align: right; font-weight: 500; }

@media (max-width: 860px) {
  .hero { padding: 3rem 0 3rem; }
  .hero-grid { grid-template-columns: 1fr; gap: 2rem; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 13px 26px; border-radius: var(--radius-sm);
  font-size: 0.9rem; font-weight: 600;
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease), background 0.2s var(--ease);
}
.btn-primary { background: var(--accent); color: #fff; box-shadow: var(--shadow); }
.btn-primary:hover { background: #1a2c48; transform: translateY(-1px); box-shadow: var(--shadow-hover); }
.btn-outline { background: transparent; color: var(--ink); border: 1px solid var(--line-strong); }
.btn-outline:hover { border-color: var(--ink); background: var(--surface); }

/* ---------- Section scaffolding ---------- */
.section { padding: 5rem 0; border-bottom: 1px solid var(--line); }
.section:last-of-type { border-bottom: none; }
.section-header { max-width: 640px; margin-bottom: 3rem; }
.section-title {
  font-family: var(--serif); font-weight: 600; font-size: clamp(1.7rem, 3vw, 2.3rem);
  letter-spacing: -0.01em; margin-bottom: 0.9rem;
}
.section-sub { color: var(--ink-dim); font-size: 1rem; }

/* ---------- Cards / grids ---------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
@media (max-width: 900px) { .grid-3 { grid-template-columns: 1fr; } .grid-2 { grid-template-columns: 1fr; } }

.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 1.8rem; transition: box-shadow 0.2s var(--ease), transform 0.2s var(--ease), border-color 0.2s var(--ease);
}
.card:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); border-color: var(--line-strong); }
.card-icon {
  width: 40px; height: 40px; border-radius: var(--radius-sm);
  background: var(--accent-soft); color: var(--accent);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem; margin-bottom: 1.1rem;
}
.card h3 { font-family: var(--serif); font-size: 1.15rem; margin-bottom: 0.6rem; font-weight: 600; }
.card p { color: var(--ink-dim); font-size: 0.92rem; }
.card ul { margin-top: 1rem; display: flex; flex-direction: column; gap: 0.5rem; }
.card ul li { font-size: 0.85rem; color: var(--ink-dim); padding-left: 1.1rem; position: relative; }
.card ul li::before { content: '—'; position: absolute; left: 0; color: var(--accent-2); }

/* ---------- Tags / badges ---------- */
.tag {
  display: inline-flex; align-items: center; font-family: var(--mono);
  font-size: 0.72rem; padding: 3px 9px; border-radius: 99px;
  background: var(--accent-soft); color: var(--accent); font-weight: 500;
  letter-spacing: 0.01em;
}
.tag.gold { background: var(--accent-2-soft); color: var(--accent-2); }

/* ---------- About layout ---------- */
.about-layout { display: grid; grid-template-columns: 300px 1fr; gap: 3rem; }
.about-sidebar {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 1.8rem; height: fit-content; box-shadow: var(--shadow);
}
.about-avatar { width: 100%; aspect-ratio: 1; border-radius: var(--radius); overflow: hidden; margin-bottom: 1.2rem; border: 1px solid var(--line); }
.about-avatar img { width: 100%; height: 100%; object-fit: cover; }
.about-sidebar h3 { font-family: var(--serif); font-size: 1.2rem; }
.about-sidebar > p { color: var(--ink-dim); font-size: 0.88rem; margin-top: 0.2rem; margin-bottom: 1.4rem; }
.profile-stats { display: flex; flex-direction: column; gap: 0.9rem; border-top: 1px solid var(--line); padding-top: 1.2rem; }
.stat-item { display: flex; flex-direction: column; gap: 0.15rem; }
.stat-item span:first-child { font-family: var(--mono); font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--ink-faint); }
.stat-item span:last-child { font-size: 0.88rem; font-weight: 500; }
.about-main-content { display: flex; flex-direction: column; gap: 2.4rem; }
.about-main-content h3 { font-family: var(--serif); font-size: 1.3rem; margin-bottom: 0.8rem; }
.about-main-content p { color: var(--ink-dim); margin-bottom: 0.8rem; font-size: 0.96rem; }
.about-main-content p:last-child { margin-bottom: 0; }
.skill-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.1rem 1.3rem;
}
.skill-card strong { font-family: var(--serif); color: var(--accent); font-size: 1rem; display: block; margin-bottom: 0.3rem; }
.skill-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1rem; }

@media (max-width: 860px) { .about-layout { grid-template-columns: 1fr; } }

/* ---------- Portfolio filters & grid ---------- */
.portfolio-filters { display: flex; gap: 0.6rem; flex-wrap: wrap; margin-bottom: 2.2rem; }
.filter-btn {
  padding: 8px 16px; border-radius: 99px; border: 1px solid var(--line-strong);
  font-size: 0.82rem; font-weight: 500; color: var(--ink-dim);
  transition: all 0.2s var(--ease);
}
.filter-btn:hover { border-color: var(--ink); color: var(--ink); }
.filter-btn.active { background: var(--ink); border-color: var(--ink); color: #fff; }
.portfolio-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
@media (max-width: 860px) { .portfolio-grid { grid-template-columns: 1fr; } }
.portfolio-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg);
  overflow: hidden; transition: box-shadow 0.2s var(--ease), transform 0.2s var(--ease);
  cursor: pointer;
}
.portfolio-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.portfolio-card.hidden { display: none; }
.card-thumb { aspect-ratio: 16/9; background: var(--accent-soft); overflow: hidden; }
.card-thumb img { width: 100%; height: 100%; object-fit: cover; }
.card-thumb-bg { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; font-size: 2.2rem; }
.card-body { padding: 1.4rem 1.5rem 1.5rem; }
.card-title { font-family: var(--serif); font-size: 1.05rem; font-weight: 600; margin-bottom: 0.4rem; }
.card-desc { font-size: 0.88rem; color: var(--ink-dim); margin-bottom: 1rem; }
.card-footer { display: flex; gap: 0.5rem; flex-wrap: wrap; }

/* ---------- Modal (project detail) ---------- */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(25,28,34,0.5);
  display: none; align-items: center; justify-content: center; z-index: 2000; padding: 1.5rem;
}
.modal-overlay.open { display: flex; }
.modal-box {
  background: var(--surface); border-radius: var(--radius-lg); max-width: 560px; width: 100%;
  padding: 2rem; box-shadow: var(--shadow-hover); position: relative;
}
.modal-close { position: absolute; top: 1.2rem; right: 1.2rem; font-size: 1.3rem; color: var(--ink-faint); line-height: 1; }
.modal-close:hover { color: var(--ink); }
.modal-box h3 { font-family: var(--serif); font-size: 1.3rem; margin-bottom: 0.8rem; padding-right: 1.5rem; }
.modal-box p { color: var(--ink-dim); font-size: 0.95rem; }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
@media (max-width: 860px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 2rem;
}
.contact-card h3 { font-family: var(--serif); font-size: 1.15rem; margin-bottom: 0.7rem; }
.contact-card p { color: var(--ink-dim); font-size: 0.92rem; margin-bottom: 1.4rem; }
.contact-row {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 0.9rem 1.1rem; background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius);
  font-family: var(--mono); font-size: 0.85rem; margin-bottom: 0.8rem;
}
.contact-row button { font-size: 0.78rem; color: var(--accent); font-weight: 600; font-family: var(--sans); }
.copy-msg { font-size: 0.8rem; color: var(--accent-2); margin-top: 0.5rem; display: none; }
.copy-msg.show { display: block; }
.field { margin-bottom: 1.1rem; display: flex; flex-direction: column; gap: 0.4rem; }
.field label { font-size: 0.8rem; font-weight: 600; color: var(--ink-dim); }
.field input, .field textarea {
  font-family: var(--sans); font-size: 0.92rem; padding: 11px 13px;
  border: 1px solid var(--line-strong); border-radius: var(--radius-sm); background: var(--bg); color: var(--ink);
}
.field input:focus, .field textarea:focus { border-color: var(--accent); background: var(--surface); }
.field textarea { resize: vertical; min-height: 110px; }

/* ---------- Footer ---------- */
footer {
  background: var(--surface); border-top: 1px solid var(--line);
  padding: 2.5rem 0;
}
.footer-grid { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem; }
.footer-logo { font-family: var(--serif); font-weight: 600; font-size: 1rem; }
.footer-links { display: flex; gap: 1.5rem; }
.footer-links a { font-size: 0.85rem; color: var(--ink-dim); }
.footer-links a:hover { color: var(--ink); }
.footer-note { font-size: 0.78rem; color: var(--ink-faint); width: 100%; padding-top: 1.5rem; margin-top: 0.5rem; border-top: 1px solid var(--line); }

/* ---------- 404 ---------- */
.error-page { min-height: 70vh; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; padding: 4rem 2rem; }
.error-code { font-family: var(--serif); font-size: clamp(4rem, 12vw, 7rem); color: var(--accent-soft); -webkit-text-stroke: 1.5px var(--accent); color: transparent; font-weight: 600; }
.error-page h1 { font-family: var(--serif); font-size: 1.6rem; margin: 1rem 0 0.6rem; }
.error-page p { color: var(--ink-dim); margin-bottom: 1.8rem; max-width: 40ch; }

/* ---------- Page load fade ---------- */
.page-section { animation: fadeIn 0.4s var(--ease); }
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

/* ---------- Responsive misc ---------- */
@media (max-width: 640px) {
  .wrap { padding: 0 1.2rem; }
  .section { padding: 3.2rem 0; }
  .hero-actions .btn { width: 100%; justify-content: center; }
}