/* =========================================================
   HITOP v2 – style.css
   Fluid typography · Container Queries · prefers-reduced-motion
   ========================================================= */

:root {
  --c-bg:       #0b0c10;
  --c-surface:  #13151d;
  --c-border:   #1e2130;
  --c-text:     #e8eaf2;
  --c-muted:    #8b90a8;
  --c-accent:   #5b8dee;
  --c-accent2:  #c471ed;
  --ff-head:    'Syne', sans-serif;
  --ff-body:    'DM Sans', sans-serif;
  --radius:     12px;
  --trans:      .25s cubic-bezier(.4,0,.2,1);

  /* Typographie fluide – s'adapte sans breakpoints */
  --fs-xs:   clamp(.75rem,  1.5vw, .85rem);
  --fs-sm:   clamp(.875rem, 2vw,   1rem);
  --fs-base: clamp(1rem,    2.5vw, 1.125rem);
  --fs-h3:   clamp(1rem,    2.5vw, 1.2rem);
  --fs-h2:   clamp(1.6rem,  4vw,   2.8rem);
  --fs-h1:   clamp(2rem,    6vw,   4.5rem);

  /* Espacement fluide */
  --sp-sm:   clamp(.75rem,  2vw,   1.25rem);
  --sp-md:   clamp(1.5rem,  4vw,   3rem);
  --sp-lg:   clamp(3rem,    8vw,   7rem);

  /* Touch targets accessibles (WCAG 2.5.5) */
  --touch-min: 48px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

/* Désactive le scroll smooth si l'utilisateur le préfère */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}

body {
  background: var(--c-bg);
  color: var(--c-text);
  font-family: var(--ff-body);
  font-size: var(--fs-base);
  font-weight: 300;
  line-height: 1.7;
  overflow-x: hidden;
  /* Améliore le rendu texte sur tous les OS */
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* Skip link accessibilité */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  background: var(--c-accent);
  color: #fff;
  padding: .5rem 1rem;
  border-radius: 0 0 var(--radius) var(--radius);
  font-family: var(--ff-head);
  font-size: var(--fs-sm);
  z-index: 9999;
  text-decoration: none;
}
.skip-link:focus { top: 0; }

a { color: var(--c-accent); text-decoration: none; transition: color var(--trans); }
a:hover { color: var(--c-accent2); }
/* Focus visible pour navigation clavier */
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--c-accent);
  outline-offset: 3px;
  border-radius: 4px;
}

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

.container { max-width: 1100px; margin: 0 auto; padding: 0 var(--sp-sm); }

/* ── Honeypot (invisible mais pas display:none pour éviter les détections) ── */
.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px; height: 1px;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
}

/* ── Boutons (touch target min 48px) ──────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  min-height: var(--touch-min);
  padding: .75rem 1.75rem;
  border-radius: 999px;
  font-family: var(--ff-head);
  font-size: var(--fs-sm);
  font-weight: 600;
  letter-spacing: .03em;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--trans);
  white-space: nowrap;
  /* Prevent tap highlight on mobile */
  -webkit-tap-highlight-color: transparent;
}
.btn-primary {
  background: linear-gradient(135deg, var(--c-accent), var(--c-accent2));
  color: #fff;
}
@media (hover: hover) {
  .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(91,141,238,.45);
    color: #fff;
  }
  .btn-ghost:hover {
    border-color: var(--c-accent);
    color: var(--c-accent);
    transform: translateY(-2px);
  }
}
.btn-ghost {
  background: transparent;
  color: var(--c-text);
  border-color: var(--c-border);
}
.btn-full { width: 100%; }

/* ── Navigation ──────────────────────────────────────── */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(11,12,16,.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--c-border);
  transition: background var(--trans);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.nav-logo {
  font-family: var(--ff-head);
  font-weight: 800;
  font-size: clamp(1rem, 2.5vw, 1.2rem);
  color: var(--c-text);
  letter-spacing: .05em;
  min-height: var(--touch-min);
  display: flex;
  align-items: center;
}
.nav-logo:hover { color: var(--c-accent); }

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}
.nav-links a {
  font-family: var(--ff-head);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--c-muted);
  position: relative;
  padding-bottom: 2px;
  min-height: var(--touch-min);
  display: flex;
  align-items: center;
}
.nav-links a::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 2px;
  background: var(--c-accent);
  transition: width var(--trans);
}
.nav-links a:hover { color: var(--c-text); }
.nav-links a:hover::after { width: 100%; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  min-width: var(--touch-min);
  min-height: var(--touch-min);
  align-items: center;
  justify-content: center;
}
.nav-toggle span {
  display: block;
  width: 24px; height: 2px;
  background: var(--c-text);
  border-radius: 2px;
  transition: all var(--trans);
}

@media (max-width: 640px) {
  .nav-toggle { display: flex; }
  .nav-links {
    position: fixed;
    inset: 64px 0 auto 0;
    background: var(--c-surface);
    flex-direction: column;
    padding: 1.5rem;
    gap: 0;
    border-bottom: 1px solid var(--c-border);
    transform: translateY(-110%);
    transition: transform var(--trans);
  }
  .nav-links li { border-bottom: 1px solid var(--c-border); }
  .nav-links li:last-child { border-bottom: none; }
  .nav-links a {
    padding: .85rem 0;
    font-size: var(--fs-sm);
  }
  .nav-links.open { transform: translateY(0); }
}

/* ── Hero ────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100svh; /* svh = small viewport height (corrige le bug mobile) */
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 64px;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}
.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: .18;
}
.blob-1 {
  width: clamp(300px, 50vw, 600px);
  height: clamp(300px, 50vw, 600px);
  top: -150px; left: -100px;
  background: radial-gradient(circle, var(--c-accent), transparent);
  animation: floatA 12s ease-in-out infinite alternate;
}
.blob-2 {
  width: clamp(250px, 40vw, 500px);
  height: clamp(250px, 40vw, 500px);
  bottom: -100px; right: -80px;
  background: radial-gradient(circle, var(--c-accent2), transparent);
  animation: floatB 15s ease-in-out infinite alternate;
}
@keyframes floatA { from { transform: translate(0,0) scale(1); } to { transform: translate(60px,40px) scale(1.1); } }
@keyframes floatB { from { transform: translate(0,0) scale(1); } to { transform: translate(-40px,-50px) scale(1.08); } }

.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--c-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--c-border) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: .35;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 700px;
  animation: fadeUp .9s ease both;
}
@keyframes fadeUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }

.hero-eyebrow {
  display: inline-block;
  font-family: var(--ff-head);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: .75rem;
}
.hero-title {
  font-family: var(--ff-head);
  font-weight: 800;
  font-size: var(--fs-h1);
  line-height: 1.08;
  letter-spacing: -.02em;
  margin-bottom: 1.25rem;
  background: linear-gradient(135deg, #fff 40%, var(--c-muted));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  font-size: var(--fs-sm);
  color: var(--c-muted);
  margin-bottom: 2.5rem;
  line-height: 1.6;
}
.hero-cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}
.hero-scroll-hint {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .5rem;
  z-index: 1;
  opacity: .5;
  font-size: var(--fs-xs);
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--c-muted);
}
.scroll-line {
  width: 1px; height: 48px;
  background: linear-gradient(to bottom, var(--c-muted), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse { 0%,100%{opacity:.3;transform:scaleY(.7)} 50%{opacity:1;transform:scaleY(1)} }

/* ── Sections ────────────────────────────────────────── */
.section { padding: var(--sp-lg) 0; }
.section-alt { background: var(--c-surface); }

.section-label {
  display: inline-block;
  font-family: var(--ff-head);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: .75rem;
}
.section-title {
  font-family: var(--ff-head);
  font-weight: 800;
  font-size: var(--fs-h2);
  line-height: 1.15;
  letter-spacing: -.02em;
  margin-bottom: 1.5rem;
}
.section-title em {
  font-style: normal;
  background: linear-gradient(135deg, var(--c-accent), var(--c-accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── À propos ────────────────────────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: var(--sp-md);
  align-items: center;
}
@media (max-width: 720px) {
  .about-grid { grid-template-columns: 1fr; gap: var(--sp-sm); }
}

.about-badge {
  position: relative;
  width: 180px; height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  justify-self: center;
}
.badge-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid transparent;
  background: linear-gradient(135deg, var(--c-accent), var(--c-accent2)) 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: rotateBorder 8s linear infinite;
}
@keyframes rotateBorder { to { transform: rotate(360deg); } }
.badge-initials {
  font-family: var(--ff-head);
  font-weight: 800;
  font-size: clamp(2rem, 5vw, 3rem);
  background: linear-gradient(135deg, var(--c-accent), var(--c-accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.about-text p { color: var(--c-muted); margin-bottom: 1rem; font-size: var(--fs-sm); }

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  list-style: none;
  margin-top: 1.5rem;
}
.tag-list li {
  font-family: var(--ff-head);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: .05em;
  padding: .35rem .85rem;
  min-height: calc(var(--touch-min) * .6);
  border-radius: 999px;
  border: 1px solid var(--c-border);
  color: var(--c-muted);
  transition: all var(--trans);
}
@media (hover: hover) {
  .tag-list li:hover { border-color: var(--c-accent); color: var(--c-accent); }
}

/* ── Cards services – Container Query ───────────────── */
.cards-container { container-type: inline-size; }
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 230px), 1fr));
  gap: 1.5rem;
  margin-top: var(--sp-md);
}
.card {
  container-type: inline-size;
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: clamp(1.25rem, 4cqi, 2rem) clamp(1rem, 3cqi, 1.5rem);
  transition: all var(--trans);
  cursor: default;
}
@media (hover: hover) {
  .card:hover {
    border-color: var(--c-accent);
    transform: translateY(-6px);
    box-shadow: 0 20px 40px rgba(91,141,238,.12);
  }
}
.card-icon { font-size: clamp(1.5rem, 5cqi, 2rem); margin-bottom: 1rem; }
.card h3 {
  font-family: var(--ff-head);
  font-weight: 600;
  font-size: var(--fs-h3);
  margin-bottom: .6rem;
}
.card p { font-size: var(--fs-xs); color: var(--c-muted); }

/* ── Contact ─────────────────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: var(--sp-md);
  align-items: start;
}
@media (max-width: 820px) {
  .contact-grid { grid-template-columns: 1fr; gap: var(--sp-sm); }
}
.contact-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
  margin-top: 2rem;
}
.contact-list li {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  font-size: var(--fs-sm);
}
.ci-icon { font-size: 1.2rem; flex-shrink: 0; line-height: 1.5; }
.contact-list a { color: var(--c-muted); }
.contact-list a:hover { color: var(--c-accent); }

.contact-form {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: clamp(1.5rem, 4vw, 2.5rem);
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}
@media (max-width: 500px) { .form-row { grid-template-columns: 1fr; } }

.form-group { display: flex; flex-direction: column; gap: .4rem; margin-bottom: 1rem; }
.form-group label {
  font-family: var(--ff-head);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: .05em;
  text-transform: uppercase;
  color: var(--c-muted);
}
.form-group input,
.form-group textarea {
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: 8px;
  color: var(--c-text);
  font-family: var(--ff-body);
  font-size: var(--fs-sm);
  padding: .7rem 1rem;
  min-height: var(--touch-min);
  transition: border-color var(--trans);
  outline: none;
  resize: vertical;
  /* Empêche le zoom iOS sur focus */
  font-size: max(16px, var(--fs-sm));
}
.form-group textarea { min-height: calc(var(--touch-min) * 2.5); }
.form-group input:focus,
.form-group textarea:focus { border-color: var(--c-accent); }
.form-group input:invalid:not(:placeholder-shown),
.form-group textarea:invalid:not(:placeholder-shown) {
  border-color: #ef5350;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--c-border); }

.form-feedback {
  margin-top: .75rem;
  font-size: var(--fs-xs);
  min-height: 1.2em;
  text-align: center;
}
.form-feedback.success { color: #4caf92; }
.form-feedback.error   { color: #ef5350; }

/* ── Footer ──────────────────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--c-border);
  padding: 1.75rem 0;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: .5rem;
  font-size: var(--fs-xs);
  color: var(--c-muted);
}

/* ── Révélation au scroll ────────────────────────────── */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }