/* =========================================================
   TOKENS — thème sombre par défaut (console de données)
   ========================================================= */
:root {
  --bg: #0B1220;
  --surface: #121B2E;
  --surface-2: #182338;
  --border: #24314A;
  --text: #E8EDF5;
  --text-muted: #8CA0C0;
  --accent: #2DD4BF;
  --accent-dim: #1C8F82;
  --warn: #F2B84B;
  --danger: #F26B6B;

  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;

  --radius: 10px;
  --max-width: 1140px;
  --nav-h: 72px;
}

/* Thème clair (bascule via bouton) */
[data-theme="light"] {
  --bg: #F5F7FA;
  --surface: #FFFFFF;
  --surface-2: #EEF1F6;
  --border: #DBE1EB;
  --text: #101826;
  --text-muted: #57647A;
  --accent: #0E9488;
  --accent-dim: #0C7A70;
  --warn: #B4790E;
  --danger: #C24141;
}

/* =========================================================
   RESET DE BASE
   ========================================================= */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background .3s ease, color .3s ease;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
ul { list-style: none; margin: 0; padding: 0; }

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

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

h1, h2, h3 { font-family: var(--font-display); margin: 0; line-height: 1.15; }

/* =========================================================
   NAVIGATION
   ========================================================= */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  z-index: 100;
}
.nav__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  height: 100%;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav__logo {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}
.nav__logo-dot { color: var(--accent); }
.nav__links {
  display: flex;
  gap: 28px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}
.nav__links a {
  color: var(--text-muted);
  position: relative;
  transition: color .2s ease;
}
.nav__links a:hover, .nav__links a:focus-visible { color: var(--text); }
.nav__links a::before { content: "#"; color: var(--accent); margin-right: 2px; }

.nav__actions { display: flex; align-items: center; gap: 12px; }

.theme-toggle {
  width: 38px; height: 38px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  display: flex; align-items: center; justify-content: center;
}
.theme-toggle .icon-moon { display: none; }
[data-theme="light"] .theme-toggle .icon-sun { display: none; }
[data-theme="light"] .theme-toggle .icon-moon { display: block; }

.nav__burger {
  display: none;
  width: 38px; height: 38px;
  border: none; background: none;
  flex-direction: column; justify-content: center; align-items: center;
  gap: 5px;
}
.nav__burger span {
  width: 22px; height: 2px; background: var(--text);
  transition: transform .25s ease, opacity .25s ease;
}
.nav__burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* =========================================================
   BOUTONS
   ========================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  transition: transform .15s ease, background .2s ease, border-color .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn--primary { background: var(--accent); color: #06201C; }
.btn--primary:hover { background: var(--accent-dim); color: #fff; }
.btn--ghost { border-color: var(--border); color: var(--text); }
.btn--ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn--full { width: 100%; justify-content: center; }

/* =========================================================
   HERO — la requête SQL qui devient le profil de David
   ========================================================= */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--nav-h) + 40px) 24px 60px;
  overflow: hidden;
}
.hero__grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: 0.35;
  mask-image: radial-gradient(circle at 30% 40%, black, transparent 75%);
}
.hero__inner {
  position: relative;
  max-width: var(--max-width);
  margin: 0 auto;
  width: 100%;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 56px;
  align-items: center;
}
.hero__eyebrow {
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 0.9rem;
  margin: 0 0 14px;
}
.hero__title {
  font-size: clamp(2.6rem, 6vw, 4.2rem);
  font-weight: 700;
  margin-bottom: 18px;
}
.hero__subtitle {
  color: var(--text-muted);
  font-size: 1.15rem;
  max-width: 46ch;
  margin-bottom: 32px;
}
.hero__cta { display: flex; gap: 16px; flex-wrap: wrap; }

.hero__scroll {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  color: var(--text-muted);
  animation: bob 2s ease-in-out infinite;
}
@keyframes bob {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(6px); }
}

/* Console */
.console {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 20px 60px -20px rgba(0,0,0,0.5);
  overflow: hidden;
}
.console__bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
}
.console__dot { width: 10px; height: 10px; border-radius: 50%; }
.console__dot--red { background: var(--danger); }
.console__dot--yellow { background: var(--warn); }
.console__dot--green { background: var(--accent); }
.console__filename {
  margin-left: 8px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
}
.console__body { padding: 20px; }
.console__query {
  font-family: var(--font-mono);
  font-size: 0.92rem;
  color: var(--text);
  margin: 0 0 18px;
  white-space: pre-wrap;
  word-break: break-word;
}
.console__cursor {
  color: var(--accent);
  animation: blink 1s step-end infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.console__result {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity .5s ease, transform .5s ease;
}
.console__result.is-visible { opacity: 1; transform: translateY(0); }
.result-row {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
}
.result-row:last-child { border-bottom: none; }
.result-row--header { background: var(--surface-2); color: var(--text-muted); }
.result-tag { color: var(--accent); }

/* =========================================================
   SECTIONS GENERIQUES
   ========================================================= */
.section { padding: 110px 24px; }
.section--alt { background: var(--surface); }
.section__inner { max-width: var(--max-width); margin: 0 auto; }
.section__inner--split {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 60px;
  align-items: start;
}
.section__eyebrow {
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 0.85rem;
  margin: 0 0 10px;
}
.section__title {
  font-size: clamp(1.8rem, 3.4vw, 2.5rem);
  margin-bottom: 16px;
}
.section__note { color: var(--text-muted); font-size: 0.95rem; }

/* Fade / slide in au scroll */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* =========================================================
   A PROPOS
   ========================================================= */
.about__content { display: flex; flex-direction: column; gap: 28px; }
.about__text { font-size: 1.08rem; color: var(--text-muted); }
.about__photo-wrap {
  width: 180px; height: 180px;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
}
.about__photo { width: 100%; height: 100%; object-fit: cover; }

/* =========================================================
   TABLEAU DE COMPETENCES
   ========================================================= */
.skills-table {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.skills-table__row {
  display: grid;
  grid-template-columns: 1.2fr 0.7fr 2fr;
  gap: 16px;
  align-items: center;
  padding: 18px 22px;
  border-bottom: 1px solid var(--border);
}
.skills-table__row:last-child { border-bottom: none; }
.skills-table__row--head {
  background: var(--surface);
  font-family: var(--font-mono);
  color: var(--text-muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.skills-table__tool {
  display: flex; align-items: center; gap: 10px;
  font-weight: 600;
}
.badge {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 4px 10px;
  border-radius: 20px;
  display: inline-block;
}
.badge--expert { background: color-mix(in srgb, var(--accent) 18%, transparent); color: var(--accent); }
.badge--advanced { background: color-mix(in srgb, var(--warn) 18%, transparent); color: var(--warn); }

/* =========================================================
   PROJETS
   ========================================================= */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-top: 40px;
}
.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: border-color .2s ease, transform .2s ease;
}
.project-card:hover { border-color: var(--accent); transform: translateY(-4px); }
.project-card__head { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; }
.project-card__head h3 { font-size: 1.15rem; }
.project-card__tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
  border: 1px solid var(--accent-dim);
  padding: 3px 9px;
  border-radius: 20px;
  white-space: nowrap;
}
.project-card__context { color: var(--text-muted); font-size: 0.92rem; }
.project-card__tools { display: flex; gap: 8px; flex-wrap: wrap; }
.project-card__tools li {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  background: var(--surface-2);
  padding: 3px 8px;
  border-radius: 6px;
}
.project-card__result { font-size: 0.92rem; }
.project-card__link {
  margin-top: auto;
  color: var(--accent);
  font-weight: 600;
  font-size: 0.9rem;
}

/* =========================================================
   SERVICES
   ========================================================= */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 28px;
  margin-top: 40px;
}
.service-item svg { color: var(--accent); margin-bottom: 14px; }
.service-item h3 { font-size: 1.05rem; margin-bottom: 8px; }
.service-item p { color: var(--text-muted); font-size: 0.92rem; }

/* =========================================================
   CONTACT
   ========================================================= */
.contact-direct { display: flex; flex-direction: column; gap: 14px; margin-top: 28px; }
.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  width: fit-content;
  transition: border-color .2s ease, color .2s ease;
}
.contact-link:hover { border-color: var(--accent); color: var(--accent); }

.contact-form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-group label { font-size: 0.88rem; color: var(--text-muted); }
.form-group input, .form-group textarea {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  resize: vertical;
}
.form-group input:focus, .form-group textarea:focus {
  border-color: var(--accent);
  outline: none;
}
.form-group.has-error input, .form-group.has-error textarea { border-color: var(--danger); }
.form-error { color: var(--danger); font-size: 0.8rem; min-height: 1em; }
.form-note { text-align: center; font-size: 0.9rem; color: var(--accent); min-height: 1.2em; }

/* =========================================================
   FOOTER
   ========================================================= */
.footer {
  border-top: 1px solid var(--border);
  padding: 30px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.85rem;
  color: var(--text-muted);
  max-width: var(--max-width);
  margin: 0 auto;
}
.footer__links { display: flex; gap: 18px; }
.footer__links a:hover { color: var(--accent); }

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 900px) {
  .hero__inner { grid-template-columns: 1fr; }
  .hero__console { order: -1; }
  .section__inner--split { grid-template-columns: 1fr; }
  .about__content { flex-direction: column-reverse; }
}

@media (max-width: 720px) {
  .nav__links {
    position: fixed;
    top: var(--nav-h);
    left: 0; right: 0;
    flex-direction: column;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 20px 24px;
    gap: 18px;
    transform: translateY(-150%);
    transition: transform .3s ease;
  }
  .nav__links.is-open { transform: translateY(0); }
  .nav__burger { display: flex; }
  .section { padding: 80px 20px; }
  .skills-table__row { grid-template-columns: 1fr; gap: 6px; }
  .skills-table__row--head { display: none; }
}