/* ═══════════════════════════════════════════
   SRICHARD.SITE — MAIN CSS
   Dark Violet / Deep Blue / Gold accent
═══════════════════════════════════════════ */

:root {
  --bg:          #0d0b1e;
  --bg2:         #13112a;
  --bg3:         #1a1736;
  --violet:      #6c5ce7;
  --violet-dim:  #4834d4;
  --blue:        #0984e3;
  --gold:        #f9ca24;
  --text:        #e8e4f0;
  --text-muted:  #8b829e;
  --border:      rgba(108,92,231,0.18);
  --glow:        rgba(108,92,231,0.35);
  --ff-display:  'Cormorant Garamond', Georgia, serif;
  --ff-ui:       'Syne', sans-serif;
  --ff-mono:     'DM Mono', monospace;
  --radius:      12px;
  --nav-h:       70px;
  --transition:  0.3s cubic-bezier(0.4,0,0.2,1);
}

/* ─── Reset ─────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--ff-ui);
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

/* ─── Scrollbar ──────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--violet); border-radius: 3px; }

/* ─── NAV ────────────────────────────────── */
.site-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: var(--nav-h);
  background: rgba(13,11,30,0.85);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition), box-shadow var(--transition);
}
.site-nav.scrolled {
  background: rgba(13,11,30,0.97);
  box-shadow: 0 4px 30px rgba(0,0,0,0.4);
}
.nav-inner {
  max-width: 1200px; margin: 0 auto; padding: 0 2rem;
  height: 100%;
  display: flex; align-items: center; gap: 2rem;
}
.nav-logo img, .nav-logo .logo-text {
  height: 38px; width: auto;
}
.logo-text {
  font-family: var(--ff-display);
  font-size: 1.8rem; font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.05em;
  line-height: 1;
  display: flex; align-items: center;
}
.nav-links {
  display: flex; align-items: center; gap: 0.25rem;
  margin-left: auto;
}
.nav-link {
  font-family: var(--ff-ui);
  font-size: 0.875rem; font-weight: 600;
  letter-spacing: 0.08em; text-transform: uppercase;
  padding: 0.4rem 0.85rem;
  border-radius: 6px;
  color: var(--text-muted);
  transition: color var(--transition), background var(--transition);
}
.nav-link:hover, .nav-link.active {
  color: var(--text);
  background: rgba(108,92,231,0.15);
}
.nav-actions {
  display: flex; align-items: center; gap: 0.75rem;
  margin-left: 1rem;
}
.lang-toggle {
  background: none; border: 1px solid var(--border);
  border-radius: 6px; padding: 0.35rem 0.65rem;
  cursor: pointer; font-size: 1.1rem;
  transition: border-color var(--transition);
}
.lang-toggle:hover { border-color: var(--violet); }
.hamburger {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 4px;
}
.hamburger span {
  display: block; width: 24px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ─── HOME PAGE ─────────────────────────── */
.home-hero {
  min-height: 100vh;
  padding-top: var(--nav-h);
  display: flex; flex-direction: column; justify-content: center; align-items: center;
  text-align: center;
  position: relative; overflow: hidden;
  padding-bottom: 5rem;
}

/* Grid / star background */
.home-hero::before {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, rgba(108,92,231,0.25) 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at 80% 80%, rgba(9,132,227,0.15) 0%, transparent 60%);
  pointer-events: none;
}

/* Animated noise overlay */
.home-hero::after {
  content: '';
  position: absolute; inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none; opacity: 0.5;
}

.hero-content { position: relative; z-index: 1; max-width: 760px; padding: 0 2rem; }

/* Profile orb */
.hero-orb {
  position: relative;
  width: 180px; height: 180px;
  margin: 0 auto 2.5rem;
}
.hero-orb-ring {
  position: absolute; inset: -12px;
  border-radius: 50%;
  border: 2px solid transparent;
  background: conic-gradient(from 0deg, var(--violet), var(--blue), var(--gold), var(--violet)) border-box;
  -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: destination-out;
  mask-composite: exclude;
  animation: spin 8s linear infinite;
}
.hero-orb-ring2 {
  position: absolute; inset: -24px;
  border-radius: 50%;
  border: 1px solid rgba(108,92,231,0.2);
  animation: spin 14s linear infinite reverse;
}
@keyframes spin { to { transform: rotate(360deg); } }
.hero-orb img {
  width: 180px; height: 180px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--bg3);
}
.hero-orb-placeholder {
  width: 180px; height: 180px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--bg3), var(--bg2));
  display: flex; align-items: center; justify-content: center;
  font-family: var(--ff-display);
  font-size: 4rem; color: var(--violet); font-weight: 700;
}

.hero-tagline {
  font-family: var(--ff-mono);
  font-size: 0.8rem; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--violet);
  margin-bottom: 1rem;
}
.hero-title {
  font-family: var(--ff-display);
  font-size: clamp(2.8rem, 7vw, 5.5rem);
  font-weight: 700; line-height: 1.1;
  color: var(--text);
  margin-bottom: 1.5rem;
}
.hero-title .accent { color: var(--gold); font-style: italic; }
.hero-subtitle {
  font-size: 1.1rem; color: var(--text-muted);
  max-width: 520px; margin: 0 auto 2.5rem;
}
.hero-ctas {
  display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap;
}

/* ─── BUTTONS ─────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius);
  font-family: var(--ff-ui); font-size: 0.9rem; font-weight: 700;
  letter-spacing: 0.04em;
  transition: all var(--transition);
  cursor: pointer; border: none;
}
.btn-primary {
  background: var(--violet);
  color: #fff;
  box-shadow: 0 0 24px rgba(108,92,231,0.45);
}
.btn-primary:hover {
  background: var(--violet-dim);
  transform: translateY(-2px);
  box-shadow: 0 0 36px rgba(108,92,231,0.6);
}
.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-outline:hover {
  border-color: var(--violet);
  color: var(--violet);
  transform: translateY(-2px);
}
.btn-sm { padding: 0.5rem 1.1rem; font-size: 0.8rem; }

/* ─── ACCORDION SECTIONS ─────────────── */
.accordion-section {
  max-width: 860px; margin: 5rem auto; padding: 0 2rem;
}
.accordion-title {
  font-family: var(--ff-display);
  font-size: 2.5rem; font-weight: 700; text-align: center;
  margin-bottom: 2rem;
  color: var(--text);
}
.accordion-item {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 1rem;
  overflow: hidden;
}
.accordion-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.25rem 1.75rem;
  cursor: pointer;
  transition: background var(--transition);
}
.accordion-head:hover { background: var(--bg3); }
.accordion-head h3 {
  font-family: var(--ff-ui); font-size: 1rem; font-weight: 700;
  letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--violet);
}
.accordion-icon {
  font-size: 1.2rem; color: var(--text-muted);
  transition: transform var(--transition);
}
.accordion-item.open .accordion-icon { transform: rotate(45deg); color: var(--violet); }
.accordion-body {
  display: none; padding: 0 1.75rem 1.5rem;
  color: var(--text-muted);
  font-size: 0.95rem;
}
.accordion-item.open .accordion-body { display: block; }

/* Education list */
.edu-entry { margin-bottom: 0.75rem; }
.edu-entry strong { color: var(--text); display: block; }
.edu-entry span { font-size: 0.85rem; color: var(--text-muted); font-family: var(--ff-mono); }

/* Tech bars */
.tech-bar-wrap { margin-bottom: 1rem; }
.tech-bar-label { display: flex; justify-content: space-between; margin-bottom: 0.3rem; font-size: 0.85rem; }
.tech-bar-label span:first-child { color: var(--text); font-weight: 600; }
.tech-bar-label span:last-child { color: var(--text-muted); font-family: var(--ff-mono); }
.tech-bar-track { height: 8px; background: var(--bg3); border-radius: 4px; overflow: hidden; }
.tech-bar-fill {
  height: 100%; border-radius: 4px;
  background: linear-gradient(90deg, var(--violet), var(--blue));
  width: 0; transition: width 1.2s cubic-bezier(0.4,0,0.2,1);
}

/* Skills grid */
.skills-grid { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 0.5rem; }
.skill-tag {
  background: rgba(108,92,231,0.12);
  border: 1px solid rgba(108,92,231,0.25);
  border-radius: 999px;
  padding: 0.3rem 0.9rem;
  font-size: 0.8rem; color: var(--text);
}

/* Offer cards */
.offer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px,1fr)); gap: 1rem; margin-top: 0.5rem; }
.offer-card {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  text-align: center;
  transition: border-color var(--transition), transform var(--transition);
}
.offer-card:hover { border-color: var(--violet); transform: translateY(-4px); }
.offer-card i { font-size: 1.8rem; color: var(--violet); margin-bottom: 0.75rem; display: block; }
.offer-card p { font-size: 0.875rem; color: var(--text-muted); }

/* Language switcher content */
[lang-version="fr"] { display: none; }

/* ─── SECTION WRAPPER ─────────────────── */
.section { padding: 5rem 2rem; }
.container { max-width: 1100px; margin: 0 auto; }
.section-label {
  font-family: var(--ff-mono); font-size: 0.75rem;
  letter-spacing: 0.25em; text-transform: uppercase;
  color: var(--violet); margin-bottom: 0.75rem;
}
.section-title {
  font-family: var(--ff-display); font-size: clamp(1.9rem, 4vw, 2.8rem);
  font-weight: 700; margin-bottom: 3rem;
  line-height: 1.2;
}
.section-title .accent { color: var(--gold); font-style: italic; }

/* ─── CARDS (articles/projects preview) ─ */
.cards-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px,1fr)); gap: 1.5rem; }
.card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  display: flex; flex-direction: column;
}
.card:hover {
  border-color: var(--violet);
  transform: translateY(-5px);
  box-shadow: 0 12px 40px rgba(108,92,231,0.2);
}
.card-img {
  aspect-ratio: 16/9; overflow: hidden;
  background: var(--bg3);
}
.card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.card:hover .card-img img { transform: scale(1.05); }
.card-img-placeholder {
  width: 100%; height: 100%;
  background: linear-gradient(135deg, var(--bg3) 0%, rgba(108,92,231,0.1) 100%);
  display: flex; align-items: center; justify-content: center;
  font-size: 2.5rem; color: var(--violet);
}
.card-body { padding: 1.5rem; flex: 1; display: flex; flex-direction: column; }
.card-cats { display: flex; gap: 0.4rem; flex-wrap: wrap; margin-bottom: 0.75rem; }
.cat-badge {
  background: rgba(108,92,231,0.15);
  border: 1px solid rgba(108,92,231,0.3);
  border-radius: 999px; padding: 0.15rem 0.7rem;
  font-size: 0.7rem; font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--violet);
}
.card-title {
  font-family: var(--ff-display); font-size: 1.35rem; font-weight: 700;
  line-height: 1.25; margin-bottom: 0.5rem; color: var(--text);
}
.card-excerpt { font-size: 0.875rem; color: var(--text-muted); flex: 1; margin-bottom: 1rem; }
.card-meta {
  font-family: var(--ff-mono); font-size: 0.75rem; color: var(--text-muted);
  display: flex; gap: 1rem; align-items: center;
  margin-bottom: 1rem;
}
.card-read-more {
  font-size: 0.85rem; font-weight: 700; color: var(--violet);
  display: inline-flex; align-items: center; gap: 0.4rem;
  transition: gap var(--transition);
}
.card-read-more:hover { gap: 0.7rem; }

/* ─── FOOTER ─────────────────────────── */
.site-footer {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  padding: 4rem 2rem 0;
  margin-top: 5rem;
}
.footer-inner {
  max-width: 1100px; margin: 0 auto;
  display: grid; grid-template-columns: 1fr 1fr auto; gap: 3rem;
  align-items: start;
  padding-bottom: 3rem;
}
.footer-logo { font-family: var(--ff-display); font-size: 2.5rem; font-weight: 700; color: var(--gold); }
.footer-quote {
  font-family: var(--ff-display); font-style: italic;
  color: var(--text-muted); margin-top: 0.5rem; font-size: 1.25rem;
}
.footer-links { display: flex; gap: 3rem; }
.footer-col { display: flex; flex-direction: column; gap: 0.6rem; }
.footer-col h4 { font-size: 0.75rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--violet); margin-bottom: 0.25rem; }
.footer-col a { font-size: 0.875rem; color: var(--text-muted); transition: color var(--transition); }
.footer-col a:hover { color: var(--text); }
.footer-social { display: flex; flex-direction: column; gap: 0.75rem; }
.footer-social a {
  width: 38px; height: 38px;
  border: 1px solid var(--border); border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  color: var(--text-muted); font-size: 0.95rem;
  transition: border-color var(--transition), color var(--transition), background var(--transition);
}
.footer-social a:hover { border-color: var(--violet); color: var(--violet); background: rgba(108,92,231,0.1); }
.footer-bottom {
  max-width: 1100px; margin: 0 auto;
  padding: 1.25rem 0;
  border-top: 1px solid var(--border);
  display: flex; justify-content: space-between; align-items: center;
  font-size: 0.8rem; color: var(--text-muted);
}
.footer-bottom a { color: var(--violet); }

/* ─── 404 ─────────────────────────────── */
.page-404 {
  min-height: 100vh; padding-top: var(--nav-h);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; padding: var(--nav-h) 2rem 4rem;
}
.error-code {
  font-family: var(--ff-display); font-size: clamp(6rem, 20vw, 15rem);
  font-weight: 700; line-height: 1;
  background: linear-gradient(135deg, var(--violet), var(--blue));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.error-msg { font-size: 1.1rem; color: var(--text-muted); margin-bottom: 2rem; }

/* ─── SIMPLE PAGES ────────────────────── */
.simple-page {
  max-width: 780px; margin: 0 auto;
  padding: calc(var(--nav-h) + 3rem) 2rem 5rem;
}
.simple-page h1 {
  font-family: var(--ff-display); font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700; margin-bottom: 2rem;
}
.simple-page p { color: var(--text-muted); margin-bottom: 1rem; }
.simple-page h2 { font-family: var(--ff-display); font-size: 1.6rem; margin: 2rem 0 1rem; color: var(--gold); }

/* Contact form */
.contact-form { display: flex; flex-direction: column; gap: 1.25rem; margin-top: 2rem; }
.form-group { display: flex; flex-direction: column; gap: 0.5rem; }
.form-group label { font-size: 0.85rem; font-weight: 600; color: var(--text-muted); letter-spacing: 0.06em; text-transform: uppercase; }
.form-group input,
.form-group textarea,
.form-group select {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 0.85rem 1rem;
  color: var(--text); font-family: var(--ff-ui); font-size: 0.95rem;
  transition: border-color var(--transition);
  resize: vertical;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none; border-color: var(--violet);
  box-shadow: 0 0 0 3px rgba(108,92,231,0.15);
}

/* Sitemap */
.sitemap-list { padding-left: 1rem; }
.sitemap-list li { margin-bottom: 0.5rem; }
.sitemap-list a { color: var(--violet); }
.sitemap-list a:hover { text-decoration: underline; }

/* Projects page */
.proj-tabs {
  display: flex; gap: 0.5rem; flex-wrap: wrap;
  margin-bottom: 2.5rem;
}
.proj-tab {
  padding: 0.5rem 1.25rem; border-radius: 999px;
  border: 1px solid var(--border);
  font-size: 0.85rem; font-weight: 700; letter-spacing: 0.06em;
  cursor: pointer; background: none; color: var(--text-muted);
  transition: all var(--transition);
}
.proj-tab:hover, .proj-tab.active { background: var(--violet); border-color: var(--violet); color: #fff; }

/* Project type badge */
.type-badge {
  font-family: var(--ff-mono); font-size: 0.7rem; letter-spacing: 0.1em;
  text-transform: uppercase; padding: 0.2rem 0.65rem;
  border-radius: 999px; background: rgba(249,202,36,0.12);
  border: 1px solid rgba(249,202,36,0.3); color: var(--gold);
}

/* ─── RESPONSIVE ──────────────────────── */
@media (max-width: 900px) {
  .footer-inner { grid-template-columns: 1fr; gap: 2rem; }
  .footer-social { flex-direction: row; }
  .nav-extras { display: none; }
}

@media (max-width: 700px) {
  /* Show hamburger button */
  .hamburger { display: flex; }

  /* Hide nav links by default — slide them off-screen above */
  .nav-links {
    position: fixed;
    top: var(--nav-h);
    left: 0; right: 0;
    z-index: 999;
    background: rgba(13,11,30,0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: center;
    padding: 2rem 1rem 2.5rem;
    gap: 0.25rem;
    /* Hidden state */
    display: flex;
    visibility: hidden;
    opacity: 0;
    transform: translateY(-8px);
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s;
    border-bottom: 1px solid var(--border);
    pointer-events: none;
  }

  /* Open state */
  .nav-links.open {
    visibility: visible;
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }

  /* Make each link full-width and bigger on mobile */
  .nav-links .nav-link {
    width: 100%;
    text-align: center;
    padding: 0.85rem 1.5rem;
    font-size: 1rem;
    border-radius: 8px;
  }

  /* Show the extra links inside the mobile menu */
  .nav-extras {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    width: 100%;
  }

  .hero-orb { width: 140px; height: 140px; }
  .hero-orb img, .hero-orb-placeholder { width: 140px; height: 140px; }
  .footer-links { flex-direction: column; gap: 1.5rem; }
}