/* =======================================================================
   style.css — Portfolio Jonathan GRAVELAT
   Thème sombre, flat, accent unique, typo mono pour les titres.
   Utilisé par toutes les pages du site.
   ======================================================================= */

@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@500;700;800&family=Inter:wght@400;500;600;700&display=swap');

/* ------------------------------ RESET ---------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { margin: 0; line-height: 1.65; -webkit-font-smoothing: antialiased; }
img, svg, video, canvas { display: block; max-width: 100%; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; padding: 0; margin: 0; }
button { font: inherit; cursor: pointer; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

/* ------------------------------ THEME ----------------------------------
   Thème sombre par défaut. body.dark-mode = mode clair (le bouton bascule
   vers un thème clair, l'inverse de son nom historique).
   ------------------------------------------------------------------------ */
:root {
  --font-ui: 'Inter', system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --font-display: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --bg: #0e0f12;
  --surface: #16181d;
  --surface-2: #1d2027;
  --text: #eeeff1;
  --muted: #93989f;
  --border: #2a2d34;
  --accent: #f2a340;
  --accent-dim: #8a6428;
  --success: #7fbf8f;
  --danger: #d97878;

  --radius: 4px;
  --radius-lg: 6px;
  --radius-xl: 8px;
  --shadow-sm: 0 1px 0 rgba(0,0,0,.4);
  --shadow: 0 8px 24px rgba(0,0,0,.35);
  --container: 1160px;
}

/* Mode clair (togglé par #darkModeToggle) */
body.dark-mode {
  --bg: #fafaf8;
  --surface: #ffffff;
  --surface-2: #f1f1ee;
  --text: #17181a;
  --muted: #62666d;
  --border: #dedcd5;
  --accent: #b6591a;
  --accent-dim: #e2a161;
  --shadow-sm: 0 1px 0 rgba(0,0,0,.06);
  --shadow: 0 10px 26px rgba(20,20,20,.08);
}

/* ------------------------------ GLOBAL ---------------------------------- */
body {
  font-family: var(--font-ui);
  color: var(--text);
  background: var(--bg);
  min-height: 100dvh;
}

.container { width: min(100% - 2.5rem, var(--container)); margin-inline: auto; }
section { padding: clamp(2rem, 5vw, 3.5rem) 1rem; }
h1, h2, h3 { line-height: 1.2; letter-spacing: -.01em; font-family: var(--font-display); color: var(--text); font-weight: 700; }
h1 { font-size: clamp(1.9rem, 4.6vw, 3rem); margin: 0 0 .8rem; }
h2 { font-size: clamp(1.3rem, 2.6vw, 1.7rem); margin: 0 0 1rem; display: flex; align-items: center; gap: .55rem; }
h2::before { content: ""; width: 10px; height: 10px; background: var(--accent); flex: none; }
h3 { font-size: clamp(1rem, 1.8vw, 1.15rem); margin: .3rem 0; }
p { color: var(--muted); max-width: 72ch; }
strong { color: var(--text); font-weight: 700; }
a { color: var(--accent); }

section > h2, section > p, section > h3 { max-width: var(--container); margin-inline: auto; }
section > p { width: 100%; }

/* ------------------------------ NAVBAR ---------------------------------- */
header {
  position: sticky; top: 0; z-index: 100;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}
nav { width: min(100% - 2.5rem, var(--container)); margin-inline: auto; padding: 1.1rem 0; }
.nav-links { display: flex; align-items: center; gap: .4rem; flex-wrap: wrap; padding-left: 100px; padding-right: 130px; }
.logo { position: absolute; left: 1rem; top: 50%; transform: translateY(-50%); height: 68px; width: 68px; margin-right: 0; }
.nav-links li a {
  position: relative;
  display: inline-flex; align-items: center; gap: .35rem;
  padding: .55rem .75rem; font-weight: 600; font-size: .88rem;
  color: var(--muted); transition: color .15s ease;
}
.nav-links li a::after {
  content: ""; position: absolute; left: .75rem; right: .75rem; bottom: 0; height: 2px;
  background: var(--accent); transform: scaleX(0); transform-origin: left;
  transition: transform .25s ease;
}
.nav-links li a:hover { color: var(--text); }
.nav-links li a:hover::after { transform: scaleX(1); }
.nav-links li a.active, .nav-links li a[aria-current="page"] { color: var(--text); }
.nav-links li a.active::after, .nav-links li a[aria-current="page"]::after { transform: scaleX(1); }

/* Sous-menu déroulant (Stage / Alternance) */
.nav-links li.has-dropdown { position: relative; }
.nav-links li.has-dropdown > a::before {
  content: "▾"; margin-left: .3rem; font-size: .7rem; color: var(--muted);
}
.nav-links .dropdown {
  display: none; flex-direction: column; position: absolute; top: 100%; left: 0;
  min-width: 170px; background: var(--surface); border: 1px solid var(--border);
  z-index: 150; padding: .3rem 0;
}
.nav-links li.has-dropdown:hover .dropdown,
.nav-links li.has-dropdown:focus-within .dropdown { display: flex; }
.nav-links .dropdown li { width: 100%; }
.nav-links .dropdown li a {
  display: block; width: 100%; padding: .55rem .9rem; font-size: .85rem;
}
.nav-links .dropdown li a::after { display: none; }
.nav-links .dropdown li a:hover { background: var(--surface-2); }

#darkModeToggle {
  position: absolute; right: 1rem; top: 50%; transform: translateY(-50%);
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: .5rem .9rem; color: var(--text); font-weight: 600; font-size: .82rem;
  display: inline-flex; align-items: center; gap: .4rem;
}
#darkModeToggle:hover { border-color: var(--accent); color: var(--accent); }

/* ------------------------------- HERO ----------------------------------- */
.parallax { position: relative; border-bottom: 1px solid var(--border); }
.hero-content { width: min(100% - 2.5rem, var(--container)); margin: 0 auto; text-align: left; padding: 2.5rem 0 2rem 5.5rem; }
.hero-content > * { max-width: 760px; }
.hero-content p { font-size: clamp(1rem, 2vw, 1.12rem); }
.titre-portfolio, #hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 5vw, 3rem);
  text-align: left; margin: .3rem 0 .8rem; font-weight: 800; color: var(--text);
}
.hero-tagline {
  display: inline-flex; align-items: center; color: var(--accent);
  font-family: var(--font-display); font-weight: 700; font-size: .82rem;
  margin-top: 0;
  max-width: 100%; overflow: hidden; white-space: nowrap;
  border-right: 2px solid var(--accent);
  animation: typing 1.6s steps(30, end) 1 both, blink-caret .8s step-end infinite;
}
.hero-tagline::before { content: "// "; color: var(--muted); }
@keyframes typing { from { width: 0; } to { width: calc(var(--chars, 30) * 1ch + 3px); } }
@keyframes blink-caret { 0%, 100% { border-color: var(--accent); } 50% { border-color: transparent; } }
@media (prefers-reduced-motion: reduce) {
  .hero-tagline { animation: none; width: auto; border-right: none; }
}
.hero-badges { display: flex; flex-wrap: wrap; justify-content: flex-start; gap: .5rem; margin: 1.2rem 0; }

/* ------------------------------ BADGES ---------------------------------- */
.badge {
  display: inline-flex; align-items: center; gap: .4rem;
  background: var(--surface); color: var(--muted);
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: .35rem .7rem; font-weight: 600; font-size: .8rem; font-family: var(--font-display);
}
.badge.brand { color: var(--text); border-color: var(--accent-dim); }
.badge.accent { color: var(--accent); border-color: var(--accent-dim); }
.badge.success { color: var(--success); }

/* ------------------------------ BOUTONS ---------------------------------- */
.btn, .hover-glow, .download-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .55rem;
  padding: .75rem 1.2rem; border-radius: var(--radius); border: 1px solid var(--accent);
  background: var(--accent); color: #16181d; font-weight: 700; font-size: .9rem;
  transition: background .15s ease, color .15s ease, transform .1s ease;
}
.btn:hover, .hover-glow:hover, .download-btn:hover { background: transparent; color: var(--accent); }
.btn:active { transform: translateY(1px); }
.btn.outline { background: transparent; color: var(--text); border-color: var(--border); }
.btn.outline:hover { border-color: var(--accent); color: var(--accent); }

/* ------------------------------ STATS ------------------------------------ */
.stats-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1px; background: var(--border); border: 1px solid var(--border);
  max-width: var(--container); margin: 1.5rem auto 0;
}
.stat-card {
  background: var(--surface); padding: 1.3rem 1rem; text-align: left;
}
.stat-card .stat-number {
  font-family: var(--font-display); font-size: 1.9rem; font-weight: 800; color: var(--accent);
}
.stat-card .stat-label { color: var(--muted); font-size: .82rem; font-weight: 600; margin-top: .3rem; }

/* ------------------------------ CARTES TECH (icons) ----------------------- */
.icons { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 1px; margin-top: 1.2rem; max-width: var(--container); margin-inline: auto; background: var(--border); border: 1px solid var(--border); }
.card {
  background: var(--surface);
  padding: 1.1rem; transition: background .15s ease;
  display: grid; place-items: center; gap: .6rem; min-height: 116px; text-align: center;
}
.card:hover { background: var(--surface-2); }
.card img { max-height: 44px; filter: grayscale(.15); transition: transform .25s ease, filter .25s ease; }
.card:hover img { transform: translateY(-4px) scale(1.08); filter: grayscale(0); }
.card span.tech-name { font-size: .78rem; font-weight: 700; color: var(--text); }
.card span.tech-ext { font-size: .68rem; font-weight: 600; color: var(--accent); font-family: var(--font-display); }

/* Logo GitHub (tracé noir) : inversé en blanc dans le thème sombre par défaut,
   remis en noir en thème clair (body.dark-mode = thème clair, voir plus haut). */
.card img.icon-invert-dark { filter: invert(1) grayscale(.15); }
.card:hover img.icon-invert-dark { filter: invert(1) grayscale(0); }
body.dark-mode .card img.icon-invert-dark { filter: grayscale(.15); }
body.dark-mode .card:hover img.icon-invert-dark { filter: grayscale(0); }

/* ------------------------------ TIMELINE (parcours) ------------------------ */
.timeline { max-width: var(--container); margin: 1.5rem auto 0; position: relative; padding-left: 1.6rem; border-left: 2px solid var(--border); }
.timeline-item { position: relative; padding: 0 0 1.8rem 1rem; }
.timeline-item::before {
  content: ""; position: absolute; left: -1.9rem; top: .25rem; width: 10px; height: 10px;
  background: var(--accent);
}
.timeline-item .timeline-date { font-size: .78rem; font-weight: 700; color: var(--accent); font-family: var(--font-display); }
.timeline-item h3 { margin-top: .2rem; }

/* ------------------------------ SECTIONS GÉNÉRIQUES ------------------------ */
#presentation, #bts-sio, #cta, #profil, #competences, #human-skills, .veille-section,
#contact, #hero, #description, #fonctionnalites, #structure, #technologies, #defis,
#video, #screenshots, #projets-intro, #projets, #activites, #conclusion, #entreprise,
#objectifs, #etapes, #problemes, #bilan, #doc, #doc-technique, #parcours {
  width: min(100% - 2.5rem, var(--container)); margin-inline: auto;
}

.section-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 1.6rem 1.8rem;
}

#cta {
  border: 1px solid var(--border); border-left: 3px solid var(--accent);
  background: var(--surface);
  text-align: left; padding: 2rem 1.75rem;
}

/* ------------------------------ LISTES À PUCES -------------------------- */
section ul:not(.nav-links):not(.human-skills-list):not(.timeline) { padding-left: 0; max-width: var(--container); margin-inline: auto; }
section ul:not(.nav-links):not(.human-skills-list):not(.timeline) li {
  margin: 0; color: var(--muted); list-style: none; padding: .55rem 0 .55rem 1.2rem;
  border-bottom: 1px solid var(--border); position: relative;
}
section ul:not(.nav-links):not(.human-skills-list):not(.timeline) li:last-child { border-bottom: none; }
section ul:not(.nav-links):not(.human-skills-list):not(.timeline) li::before {
  content: "-"; position: absolute; left: 0; color: var(--accent); font-weight: 700;
}
section ul:not(.nav-links):not(.human-skills-list):not(.timeline) li strong { color: var(--text); }

.human-skills-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1px; max-width: var(--container); margin-inline: auto; background: var(--border); border: 1px solid var(--border); }
.human-skills-list li {
  background: var(--surface);
  padding: .7rem 1rem; font-weight: 600; font-size: .92rem;
}

/* ------------------------------ PROJETS / GRILLE CARTES ------------------- */
.projects-container {
  display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  width: min(100% - 2.5rem, var(--container)); margin: 1.3rem auto 0;
}
.project-card {
  background: var(--surface); border: 1px solid var(--border);
  overflow: hidden; transition: border-color .15s ease, transform .15s ease;
  display: block;
}
.project-card:hover { border-color: var(--accent); transform: translateY(-3px); }
.project-card img { width: 100%; height: 160px; object-fit: cover; filter: grayscale(.25); }
.project-card:hover img { filter: grayscale(0); }
.project-card .card-content { padding: 1rem 1.1rem; border-top: 1px solid var(--border); }
.project-card .card-content h3 { margin: 0; font-size: 1rem; }
.project-card .card-content p { margin: .4rem 0 0; font-size: .82rem; }

/* ------------------------------ GALERIE / LIGHTBOX ------------------------ */
.image-gallery { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); max-width: var(--container); margin: 1rem auto 0; }
.image-gallery img {
  width: 100%; height: 190px; object-fit: cover; border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: border-color .15s ease;
}
.image-gallery a:hover img { border-color: var(--accent); }

.demo-video { width: 100%; max-width: var(--container); margin: 1rem auto 0; border-radius: var(--radius); border: 1px solid var(--border); display: block; }

/* Diagramme unique (ex: schéma BDD) : fond blanc propre pour un visuel qui a
   lui-même un fond blanc, assez grand pour rester lisible. */
.diagram-frame {
  display: block; width: fit-content; max-width: 100%; margin: 1rem auto 0;
  padding: .85rem; background: #ffffff; border: 1px solid var(--border); border-radius: var(--radius);
  transition: border-color .15s ease;
}
.diagram-frame:hover { border-color: var(--accent); }
.diagram-frame img { max-width: 100%; width: 560px; height: auto; border-radius: calc(var(--radius) - 2px); }
@media (max-width: 640px) { .diagram-frame img { width: 100%; } }

/* ------------------------------ VEILLE ------------------------------------ */
.veille-section { display: flex; flex-wrap: wrap; gap: 1rem; justify-content: center; }
.veille-card {
  flex: 1 1 440px; max-width: 600px; background: var(--surface); border: 1px solid var(--border);
  padding: 1.4rem;
}
.veille-card h2 { color: var(--text); }
.article { margin-bottom: 1.1rem; padding-bottom: 1.1rem; border-bottom: 1px solid var(--border); }
.article:last-child { border-bottom: none; }
.article h3 a { font-weight: 700; color: var(--text); text-decoration: underline; text-underline-offset: 3px; text-decoration-color: var(--accent); }
.article small { color: var(--muted); }
.intro { max-width: var(--container); margin: 0 auto 1rem; text-align: left; }

/* ------------------------------ TABLEAUX ---------------------------------- */
table { width: 100%; border-collapse: collapse; max-width: var(--container); margin-inline: auto; border: 1px solid var(--border); }
thead th { background: var(--surface-2); text-align: left; padding: .9rem 1rem; border-bottom: 1px solid var(--border); font-weight: 800; font-family: var(--font-display); font-size: .85rem; }
td { padding: .9rem 1rem; border-bottom: 1px solid var(--border); color: var(--muted); }
tbody tr:hover { background: var(--surface-2); }

/* ------------------------------ PROFIL ------------------------------------ */
.profile-container { display: grid; gap: 1.2rem; max-width: var(--container); margin-inline: auto; }
.profile-info { background: var(--surface); border: 1px solid var(--border); padding: 1.8rem; }
.profile-info ul { list-style: none; padding: 0; margin-top: 1rem; }
.profile-info li { margin: 0; }
#contact ul { padding-left: 0; }
#contact li { margin: 0; }

/* ------------------------------ FORMULAIRE DE CONTACT ---------------------- */
.contact-grid { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.form-row { margin-bottom: 1rem; }
.form-row label {
  display: block; margin-bottom: .4rem; font-family: var(--font-display);
  font-size: .78rem; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: .04em;
}
.form-row input, .form-row textarea {
  width: 100%; background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius);
  padding: .7rem .8rem; color: var(--text); font-family: var(--font-ui); font-size: .95rem;
  transition: border-color .15s ease;
}
.form-row input:focus, .form-row textarea:focus { outline: none; border-color: var(--accent); }
.form-row textarea { resize: vertical; min-height: 120px; }
.honeypot { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-feedback {
  border: 1px solid var(--border); border-left: 3px solid var(--accent);
  padding: .8rem 1rem; margin-bottom: 1.2rem; font-size: .9rem;
}
.form-feedback.success { border-left-color: var(--success); color: var(--success); }
.form-feedback.error { border-left-color: var(--danger); color: var(--danger); }

/* ------------------------------ MINI-JEU (Snake) --------------------------- */
.snake-wrap { display: flex; flex-direction: column; align-items: center; gap: 1rem; max-width: 440px; margin: 0 auto; }
.snake-hud {
  display: flex; justify-content: space-between; width: 100%;
  font-family: var(--font-display); font-size: .85rem; color: var(--muted);
}
.snake-hud strong { color: var(--accent); }
#snakeCanvas { width: 100%; max-width: 400px; aspect-ratio: 1 / 1; border: 1px solid var(--border); }
.snake-message { min-height: 1.4em; color: var(--muted); font-size: .9rem; text-align: center; }
.snake-controls { display: none; flex-direction: column; align-items: center; gap: .4rem; }
.snake-controls-row { display: flex; gap: .4rem; }
.snake-controls button {
  width: 44px; height: 44px; background: var(--surface); border: 1px solid var(--border);
  color: var(--text); font-size: 1.1rem; border-radius: var(--radius);
}
.snake-controls button:active { border-color: var(--accent); color: var(--accent); }
@media (hover: none) and (pointer: coarse) {
  .snake-controls { display: flex; }
}

/* ------------------------------- FOOTER ------------------------------------ */
footer {
  border-top: 1px solid var(--border); color: var(--muted); padding: 2rem 1rem;
  margin-top: 3rem; text-align: left; font-size: .85rem; font-family: var(--font-display);
}
footer p { max-width: var(--container); margin-inline: auto; }
footer a { color: var(--muted); }

/* ------------------------------ UTILITAIRES -------------------------------- */
.center { display: grid; place-items: center; }
.mt-2 { margin-top: .5rem; } .mt-4 { margin-top: 1rem; } .mt-6 { margin-top: 1.5rem; } .mt-8 { margin-top: 2rem; }

/* ------------------------------ ANIMATIONS (ScrollReveal fallback) --------- */
.fade-in { opacity: 0; transform: translateY(10px); animation: fade .5s .05s both; }
.slide-up { opacity: 0; transform: translateY(16px); animation: fade .55s .08s both; }
.scroll-reveal { opacity: 0; transform: translateX(-12px); animation: fadeX .55s .08s both; }
@keyframes fade { to { opacity: 1; transform: none; } }
@keyframes fadeX { to { opacity: 1; transform: none; } }

/* ------------------------------ RESPONSIVE --------------------------------- */
@media (max-width: 760px) {
  .logo { height: 50px; width: 50px; left: .5rem; }
  .nav-links { gap: 0; padding-left: 74px; padding-right: 100px; }
  .nav-links li a { padding: .45rem .55rem; font-size: .8rem; }
  #darkModeToggle { right: .5rem; padding: .4rem .7rem; font-size: .75rem; }
  .project-card img { height: 130px; }
  .image-gallery img { height: 160px; }
}

/* ------------------------------ PRINT --------------------------------------- */
@media print {
  body { background: #fff; color: #000; }
  header, footer, #darkModeToggle { display: none !important; }
}