/* ============================================================
   PALETTE — générée depuis #C79A7A (sable chaud / terracotta)
   Inspirée de la convention Radix UI (12 stops)
   ============================================================ */
:root {
  --sand-1:  #fdfaf7;   /* fond page */
  --sand-2:  #f9f3ec;   /* fond alt */
  --sand-3:  #f3e8da;   /* hover subtil */
  --sand-4:  #eccfc0;   /* border légère */
  --sand-5:  #e5bba7;   /* border medium */
  --sand-6:  #dba88f;   /* border forte */
  --sand-7:  #c79a7a;   /* couleur principale */
  --sand-8:  #b0815f;   /* hover accent */
  --sand-9:  #9a6847;   /* accent fort */
  --sand-10: #7d5138;   /* accent sombre */
  --sand-11: #5e3a26;   /* texte sur fond clair */
  --sand-12: #311a0d;   /* texte foncé / titres */

  /* Alias sémantiques */
  --color-bg:        var(--sand-1);
  --color-bg-alt:    var(--sand-2);
  --color-bg-card:   #ffffff;
  --color-border:    var(--sand-4);
  --color-border-md: var(--sand-6);
  --color-accent:    var(--sand-7);
  --color-accent-hover: var(--sand-8);
  --color-text:      var(--sand-12);
  --color-text-muted: var(--sand-10);
  --color-text-faint: var(--sand-9);

  /* Typo */
  --font-display: 'Comfortaa', Georgia, serif;
  --font-body:    'Noto Sans', system-ui, sans-serif;

  /* Espacements */
  --section-pad: 7rem 0;
  --radius-sm: 4px;
  --radius-md: 10px;
  --radius-lg: 18px;

  /* Transitions */
  --ease: cubic-bezier(.25, .46, .45, .94);
}

/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  overflow-x: hidden;
}

img { display: block; max-width: 100%; }

a { color: inherit; text-decoration: none; }

ul { list-style: none; }

/* ============================================================
   UTILITAIRES
   ============================================================ */
.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 2rem;
}

.section { padding: var(--section-pad); }

.section--alt { background: var(--color-bg-alt); }

.section__header { margin-bottom: 3.5rem; }

.section__tag {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: .75rem;
}

.section__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 300;
  line-height: 1.15;
  color: var(--color-text);
}

/* Boutons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .75rem 1.75rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: .875rem;
  font-weight: 500;
  letter-spacing: .04em;
  cursor: pointer;
  transition: all .22s var(--ease);
  border: 1.5px solid transparent;
}

.btn--primary {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}
.btn--primary:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  transform: translateY(-2px);
}

.btn--outline {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border-md);
}
.btn--outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  transform: translateY(-2px);
}

.btn--full { width: 100%; justify-content: center; }

/* Badge tech */
.badge {
  display: inline-block;
  padding: .2rem .65rem;
  background: var(--sand-3);
  color: var(--sand-11);
  border-radius: 999px;
  font-size: .75rem;
  font-weight: 500;
  letter-spacing: .03em;
  border: 1px solid var(--sand-5);
}

/* ============================================================
   NAVIGATION
   ============================================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 2.5rem;
  transition: background .3s var(--ease), box-shadow .3s var(--ease);
}

.nav.scrolled {
  background: rgba(253, 250, 247, .94);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--color-border);
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: .75rem;
}

.nav__initials {
  width: 36px; height: 36px;
  background: var(--color-accent);
  color: #fff;
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: .02em;
}

.nav__name {
  font-size: .9rem;
  font-weight: 500;
  color: var(--color-text);
}

.nav__links {
  display: flex;
  gap: 2.5rem;
}

.nav__link {
  font-size: .85rem;
  font-weight: 400;
  color: var(--color-text-muted);
  transition: color .2s;
  position: relative;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -3px; left: 0; right: 0;
  height: 1px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .25s var(--ease);
}

.nav__link:hover, .nav__link.active {
  color: var(--color-text);
}
.nav__link:hover::after, .nav__link.active::after {
  transform: scaleX(1);
}

.nav__burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  z-index: 101;
  position: relative;
}

.nav__burger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all .28s var(--ease);
  transform-origin: center;
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding: 6rem 2rem 4rem;
  position: relative;
  overflow: hidden;
}

.hero__bg-svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  user-select: none;
  z-index: 0;
  overflow: hidden;
}

.hero__bg-svg svg {
  width: 100%;
  height: 100%;
}

.hero__content {
  max-width: 1080px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
  width: 100%;
}

.hero__eyebrow {
  font-size: .8rem;
  font-weight: 500;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 1.5rem;
  opacity: 0;
  animation: fadeUp .6s var(--ease) .2s forwards;
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(4rem, 11vw, 10rem);
  font-weight: 300;
  line-height: 1;
  letter-spacing: -.01em;
  color: var(--color-text);
  margin-bottom: 1.5rem;
  opacity: 0;
  animation: fadeUp .7s var(--ease) .35s forwards;
}

.hero__title em {
  font-style: italic;
  color: var(--color-accent);
}

.hero__subtitle {
  max-width: 520px;
  font-size: 1.05rem;
  color: var(--color-text-muted);
  margin-bottom: 2.5rem;
  opacity: 0;
  animation: fadeUp .7s var(--ease) .5s forwards;
}

.hero__actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp .7s var(--ease) .65s forwards;
}

.hero__scroll-hint {
  position: absolute;
  bottom: 2.5rem;
  right: 2.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .5rem;
  color: var(--color-text-faint);
  font-size: .7rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  opacity: 0;
  animation: fadeIn .8s var(--ease) 1s forwards;
}

.hero__scroll-line {
  width: 1px;
  height: 50px;
  background: linear-gradient(to bottom, var(--color-accent), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

/* ============================================================
   À PROPOS
   ============================================================ */
.about { background: var(--color-bg-alt); }

.about__grid {
  display: grid;
  grid-template-columns: 1.8fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about__image-wrap {
  display: flex;
  justify-content: center;
  align-items: center;
}

.about__image-placeholder {
  width: 220px;
  height: 220px;
  background: var(--sand-3);
  border: 3px solid var(--sand-5);
  border-radius: 50%;
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(199,154,122,.18);
  flex-shrink: 0;
}

.about__image-placeholder img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 15%;
}

.about__lead {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 300;
  line-height: 1.5;
  color: var(--color-text);
  margin-bottom: 1.25rem;
}

.about__text p { color: var(--color-text-muted); margin-bottom: 1.5rem; }
.about__text strong { color: var(--color-text); font-weight: 500; }

.about__facts { display: flex; flex-direction: column; gap: .75rem; margin-top: .5rem; }

.about__facts li {
  display: flex;
  align-items: flex-start;
  gap: .75rem;
  font-size: .9rem;
  color: var(--color-text-muted);
}

.about__fact-icon {
  color: var(--color-accent);
  font-size: .5rem;
  margin-top: .55rem;
  flex-shrink: 0;
}

/* ============================================================
   COMPÉTENCES
   ============================================================ */
.skills__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}

.skill-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s;
}

.skill-card:hover {
  transform: translateY(-5px);
  border-color: var(--color-accent);
  box-shadow: 0 12px 32px rgba(199,154,122,.15);
}

.skill-card__icon {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.skill-card__title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 400;
  margin-bottom: .75rem;
  color: var(--color-text);
}

.skill-card__list {
  list-style: none;
  margin-bottom: 1.25rem;
}

.skill-card__list li {
  font-size: .85rem;
  color: var(--color-text-muted);
  padding: .2rem 0;
  border-bottom: 1px solid var(--sand-3);
}
.skill-card__list li:last-child { border-bottom: none; }

.skill-card__bar {
  height: 3px;
  background: var(--sand-3);
  border-radius: 999px;
  overflow: hidden;
}

.skill-card__fill {
  height: 100%;
  width: 0;
  background: var(--color-accent);
  border-radius: 999px;
  transition: width 1s var(--ease);
}
.skill-card__fill.animated { width: var(--pct); }

/* ============================================================
   PROJETS
   ============================================================ */
.projects { background: var(--color-bg-alt); }

.projects__grid {
  display: flex;
  flex-direction: column;
  gap: 1.5px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.project-card {
  display: grid;
  grid-template-columns: 60px 1fr auto;
  align-items: center;
  gap: 2rem;
  padding: 2rem 2rem;
  background: var(--color-bg-card);
  border-bottom: 1px solid var(--color-border);
  transition: background .2s, transform .2s var(--ease);
}
.project-card:last-child { border-bottom: none; }
.project-card:hover { background: var(--sand-2); }

.project-card__num {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 300;
  color: var(--sand-5);
  line-height: 1;
}

.project-card__tag {
  display: inline-block;
  font-size: .7rem;
  font-weight: 500;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: .35rem;
}

.project-card__title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--color-text);
  margin-bottom: .5rem;
}

.project-card__desc {
  font-size: .875rem;
  color: var(--color-text-muted);
  max-width: 480px;
  margin-bottom: 1rem;
}

.project-card__stack {
  display: flex;
  gap: .5rem;
  flex-wrap: wrap;
}

.project-card__links {
  display: flex;
  flex-direction: column;
  gap: .5rem;
  align-items: flex-end;
}

.project-link {
  font-size: .8rem;
  font-weight: 500;
  color: var(--color-accent);
  letter-spacing: .03em;
  transition: color .2s, transform .2s;
  white-space: nowrap;
}
.project-link:hover { color: var(--color-accent-hover); transform: translateX(3px); }

/* ============================================================
   CONTACT
   ============================================================ */
.contact__solo {
  max-width: 560px;
}

.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 5rem;
  align-items: start;
}

.contact__lead {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 300;
  color: var(--color-text);
  margin-bottom: 2rem;
  line-height: 1.5;
}

.contact__links {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact__links li {
  display: flex;
  align-items: center;
  gap: .75rem;
  font-size: .9rem;
  color: var(--color-text-muted);
}

.contact__links a { transition: color .2s; }
.contact__links a:hover { color: var(--color-accent); }

.contact__icon {
  width: 32px; height: 32px;
  background: var(--sand-3);
  border: 1px solid var(--sand-5);
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  font-size: .75rem;
  font-weight: 600;
  color: var(--color-accent);
  flex-shrink: 0;
}

/* Formulaire */
.contact__form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: .4rem;
}

.form-group label {
  font-size: .8rem;
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: .04em;
}

.form-group input,
.form-group textarea {
  font-family: var(--font-body);
  font-size: .9rem;
  color: var(--color-text);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: .7rem 1rem;
  transition: border-color .2s, box-shadow .2s;
  resize: vertical;
  outline: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--sand-6);
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(199,154,122,.15);
}

.form-status {
  font-size: .85rem;
  color: var(--color-accent);
  min-height: 1.2rem;
  text-align: center;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  border-top: 1px solid var(--color-border);
  padding: 1.75rem 0;
  background: var(--color-bg);
}

.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: .8rem;
  color: var(--color-text-faint);
}

/* ============================================================
   ANIMATIONS
   ============================================================ */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes scrollPulse {
  0%, 100% { opacity: 1; transform: scaleY(1); }
  50%       { opacity: .4; transform: scaleY(.7); }
}

/* Reveal au scroll */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}
.reveal.visible {
  opacity: 1;
  transform: none;
}

/* ============================================================
   RESPONSIVE — TABLETTE (681px – 900px)
   ============================================================ */
@media (max-width: 900px) {
  .nav { padding: 1rem 1.5rem; }

  /* About : colonne unique, photo centrée en haut */
  .about__grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
    text-align: center;
  }
  .about__image-wrap { order: -1; }
  .about__image-placeholder { width: 180px; height: 180px; }
  .about__lead { font-size: 1.2rem; }
  .about__facts li { justify-content: center; text-align: left; }

  /* Skills : 2 colonnes */
  .skills__grid { grid-template-columns: repeat(2, 1fr); }

  /* Projects */
  .project-card {
    grid-template-columns: 48px 1fr;
    grid-template-rows: auto auto;
    gap: .75rem 1.5rem;
  }
  .project-card__links {
    grid-column: 2;
    flex-direction: row;
    align-items: center;
  }

  /* Contact */
  .contact__grid { grid-template-columns: 1fr; gap: 3rem; }
  .contact__solo { max-width: 100%; }
}

/* ============================================================
   RESPONSIVE — MOBILE (≤ 680px)
   ============================================================ */
@media (max-width: 680px) {
  :root { --section-pad: 4.5rem 0; }

  /* Nav */
  .nav { padding: .9rem 1.25rem; }
  .nav__links { display: none; }
  .nav__links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(253, 250, 247, .97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 6rem 2rem 2rem;
    gap: 2rem;
    align-items: center;
    justify-content: flex-start;
    z-index: 99;
    border: none;
  }
  .nav__links.open .nav__link {
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--color-text);
  }
  .nav__burger { display: flex; }

  /* Burger animé en × */
  .nav__burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav__burger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
  .nav__burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  /* Hero */
  .hero { padding: 5.5rem 1.25rem 3rem; }
  .hero__title {
    font-size: clamp(3rem, 17vw, 5rem);
    margin-bottom: 1rem;
  }
  .hero__subtitle {
    font-size: .95rem;
    margin-bottom: 2rem;
    max-width: 100%;
  }
  .hero__actions {
    flex-direction: column;
    align-items: stretch;
    gap: .75rem;
  }
  .hero__actions .btn { width: 100%; justify-content: center; }
  .hero__scroll-hint { display: none; }

  /* Layout */
  .container { padding: 0 1.25rem; }
  .section__header { margin-bottom: 2rem; }

  /* About */
  .about__grid { gap: 1.75rem; }
  .about__image-placeholder { width: 150px; height: 150px; }
  .about__lead { font-size: 1.05rem; }
  .about__facts li { font-size: .85rem; }

  /* Skills : 1 colonne */
  .skills__grid { grid-template-columns: 1fr; gap: 1rem; }
  .skill-card { padding: 1.25rem 1.5rem; }

  /* Projects */
  .project-card {
    grid-template-columns: 1fr;
    padding: 1.25rem;
    gap: .6rem;
  }
  .project-card__num { display: none; }
  .project-card__links { grid-column: 1; flex-direction: row; }
  .project-card__title { font-size: 1.1rem; }
  .project-card__desc { font-size: .85rem; max-width: 100%; margin-bottom: .75rem; }

  /* Contact */
  .contact__lead { font-size: 1.05rem; }
  .contact__links li { font-size: .875rem; }

  /* Footer */
  .footer__credit { display: none; }
  .footer__inner { justify-content: center; }
}

/* ============================================================
   RESPONSIVE — TRÈS PETIT MOBILE (≤ 375px)
   ============================================================ */
@media (max-width: 375px) {
  .hero__title { font-size: clamp(2.6rem, 19vw, 3.8rem); }
  .nav__name { font-size: .8rem; }
  .about__image-placeholder { width: 130px; height: 130px; }
  .skill-card { padding: 1rem 1.1rem; }
}