/* ==========================================================
   HEAD EASE — feuille de style
   ========================================================== */

:root {
  --bg: #0a0b10;
  --bg-alt: #0f111a;
  --surface: #151826;
  --surface-2: #1b1f30;
  --border: rgba(255, 255, 255, 0.08);
  --text: #eef0f7;
  --text-muted: #9aa0b4;
  --accent: #00e5a0;       /* vert néon */
  --accent-2: #7c5cff;     /* violet électrique */
  --accent-ink: #04140e;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-head: "Space Grotesk", "Inter", system-ui, sans-serif;
  --nav-h: 72px;
}

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

html { scroll-behavior: smooth; scroll-padding-top: var(--nav-h); }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { font-family: var(--font-head); line-height: 1.15; margin: 0 0 0.6em; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); }
h3 { font-size: 1.25rem; }
p { margin: 0 0 1em; }

.container { width: min(1160px, 100% - 32px); margin-inline: auto; }

.accent { color: var(--accent); }

.gradient-text {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

/* ---------- Boutons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.9rem 1.5rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.98rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease;
  font-family: inherit;
}
.btn:hover { transform: translateY(-2px); }
.btn--primary {
  background: var(--accent);
  color: var(--accent-ink);
  box-shadow: 0 8px 30px rgba(0, 229, 160, 0.3);
}
.btn--primary:hover { box-shadow: 0 12px 40px rgba(0, 229, 160, 0.45); }
.btn--ghost { border-color: var(--border); color: var(--text); background: rgba(255, 255, 255, 0.03); }
.btn--ghost:hover { border-color: rgba(255, 255, 255, 0.25); }
.btn--small { padding: 0.6rem 1.1rem; font-size: 0.9rem; }
.btn--full { width: 100%; }

/* ---------- Navigation ---------- */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--nav-h);
  z-index: 50;
  transition: background 0.3s ease, border-color 0.3s ease;
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
  background: rgba(10, 11, 16, 0.8);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-color: var(--border);
}
.nav__inner { height: 100%; display: flex; align-items: center; justify-content: space-between; }

.logo { display: inline-flex; align-items: center; gap: 0.6rem; font-family: var(--font-head); font-weight: 700; }
.logo__mark {
  display: grid; place-items: center;
  width: 34px; height: 34px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: var(--accent-ink);
  font-size: 1.05rem;
}
.logo__text { font-size: 1.15rem; letter-spacing: 0.04em; }

.nav__menu { display: flex; align-items: center; gap: 2rem; }
.nav__menu a:not(.btn) { color: var(--text-muted); font-weight: 500; font-size: 0.95rem; transition: color 0.2s; }
.nav__menu a:not(.btn):hover { color: var(--text); }

.nav__toggle { display: none; background: none; border: 0; padding: 8px; cursor: pointer; }
.nav__toggle span { display: block; width: 24px; height: 2px; margin: 5px 0; background: var(--text); border-radius: 2px; transition: transform 0.3s, opacity 0.3s; }
.nav__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--nav-h) + 60px) 0 80px;
  overflow: hidden;
}
.hero__glow {
  position: absolute;
  inset: -20% -10% auto auto;
  width: 70vw; height: 70vw;
  max-width: 900px; max-height: 900px;
  background: radial-gradient(circle, rgba(124, 92, 255, 0.35), transparent 60%),
              radial-gradient(circle at 30% 70%, rgba(0, 229, 160, 0.25), transparent 55%);
  filter: blur(40px);
  pointer-events: none;
}
.hero__grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at center, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, #000 30%, transparent 75%);
  pointer-events: none;
}
.hero__inner { position: relative; max-width: 900px; }
.hero__title { font-size: clamp(2.3rem, 6vw, 4.2rem); margin-bottom: 0.5em; }
.hero__lead { font-size: clamp(1.05rem, 1.6vw, 1.25rem); color: var(--text-muted); max-width: 640px; }
.hero__cta { display: flex; flex-wrap: wrap; gap: 1rem; margin: 2rem 0 3.5rem; }

.hero__stats {
  list-style: none; padding: 0; margin: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  max-width: 480px;
}
.hero__stats li {
  padding: 1rem 1.2rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.02);
}
.hero__stats strong { display: block; font-family: var(--font-head); font-size: 1.6rem; color: var(--accent); }
.hero__stats span { font-size: 0.88rem; color: var(--text-muted); }

.eyebrow {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-size: 0.8rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.14em;
  color: var(--accent);
  margin-bottom: 1rem;
}
.eyebrow .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 rgba(0, 229, 160, 0.6);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(0, 229, 160, 0.6); }
  70% { box-shadow: 0 0 0 10px rgba(0, 229, 160, 0); }
  100% { box-shadow: 0 0 0 0 rgba(0, 229, 160, 0); }
}

/* ---------- Sections ---------- */
.section { padding: 110px 0; }
.section--alt { background: var(--bg-alt); border-block: 1px solid var(--border); }
.section__head { max-width: 680px; margin-bottom: 3.5rem; }
.section__lead { color: var(--text-muted); font-size: 1.08rem; }

/* ---------- Cartes services ---------- */
.cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.5rem; }
.card {
  position: relative;
  padding: 2rem;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--border);
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
  overflow: hidden;
}
.card::before {
  content: "";
  position: absolute; inset: 0 0 auto 0; height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  opacity: 0; transition: opacity 0.3s;
}
.card:hover { transform: translateY(-4px); border-color: rgba(0, 229, 160, 0.3); box-shadow: var(--shadow); }
.card:hover::before { opacity: 1; }
.card p { color: var(--text-muted); }
.card__icon {
  width: 52px; height: 52px;
  display: grid; place-items: center;
  border-radius: 12px;
  margin-bottom: 1.4rem;
  background: rgba(0, 229, 160, 0.1);
  color: var(--accent);
}
.card__icon svg { width: 26px; height: 26px; }
.card__list { list-style: none; padding: 0; margin: 1.2rem 0 0; display: grid; gap: 0.5rem; }
.card__list li { position: relative; padding-left: 1.6rem; font-size: 0.95rem; }
.card__list li::before {
  content: "";
  position: absolute; left: 0; top: 0.5em;
  width: 10px; height: 10px; border-radius: 3px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}

/* ---------- Étapes ---------- */
.steps { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.5rem; }
.step { padding: 2rem; border-radius: var(--radius); border: 1px solid var(--border); background: var(--surface); }
.step__num {
  display: inline-block;
  font-family: var(--font-head); font-weight: 700; font-size: 2.4rem;
  margin-bottom: 0.8rem;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.step p { color: var(--text-muted); margin: 0; }

/* ---------- À propos ---------- */
.about { display: grid; grid-template-columns: 1.3fr 1fr; gap: 4rem; align-items: center; }
.about__text p { color: var(--text-muted); font-size: 1.05rem; }
.about__text strong { color: var(--text); }
.about__facts { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.about__facts li {
  padding: 1.5rem;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--border);
}
.fact__label { display: block; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-muted); margin-bottom: 0.4rem; }
.fact__value { font-family: var(--font-head); font-size: 1.2rem; font-weight: 600; }

/* ---------- Contact ---------- */
.contact { display: grid; grid-template-columns: 1fr 1.2fr; gap: 4rem; align-items: start; }
.contact__intro p { color: var(--text-muted); font-size: 1.05rem; }
.contact__info { list-style: none; padding: 0; margin: 2rem 0 0; display: grid; gap: 1rem; }
.contact__info li { display: flex; flex-direction: column; }
.contact__label { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-muted); }
.contact__info a { color: var(--accent); font-weight: 600; }
.contact__info a:hover { text-decoration: underline; }

.form {
  padding: 2rem;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}
.form__row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.field { display: flex; flex-direction: column; gap: 0.4rem; margin-bottom: 1.2rem; }
.field label { font-size: 0.9rem; font-weight: 500; }
.optional { color: var(--text-muted); font-weight: 400; }
.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  font: inherit;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.field textarea { resize: vertical; min-height: 120px; }
.field input::placeholder,
.field textarea::placeholder { color: #646a80; }
.field input:focus,
.field select:focus,
.field textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(0, 229, 160, 0.15); }
.field.has-error input,
.field.has-error textarea { border-color: #ff5c7a; }
.form__status { margin: 1rem 0 0; font-size: 0.92rem; min-height: 1.4em; }
.form__status.is-success { color: var(--accent); }
.form__status.is-error { color: #ff5c7a; }

/* ---------- Footer ---------- */
.footer { padding: 3rem 0; border-top: 1px solid var(--border); }
.footer__inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1rem; }
.footer p { margin: 0; color: var(--text-muted); font-size: 0.9rem; }

/* ---------- Animations d'apparition ---------- */
.js .reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s ease, transform 0.7s ease; }
.js .reveal.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .js .reveal { opacity: 1; transform: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .about, .contact { grid-template-columns: 1fr; gap: 2.5rem; }
  .steps { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .nav__toggle { display: block; }
  .nav__menu {
    position: fixed;
    top: var(--nav-h); left: 0; right: 0;
    flex-direction: column; align-items: stretch;
    gap: 0;
    padding: 1rem 16px 1.5rem;
    background: rgba(10, 11, 16, 0.97);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
    transform: translateY(-120%);
    transition: transform 0.3s ease;
  }
  .nav__menu.is-open { transform: none; }
  .nav__menu a:not(.btn) { padding: 0.9rem 0; border-bottom: 1px solid var(--border); font-size: 1.05rem; }
  .nav__menu .btn { margin-top: 1rem; }
  .nav.menu-open { background: rgba(10, 11, 16, 0.97); }

  .cards { grid-template-columns: 1fr; }
  .hero__stats { grid-template-columns: 1fr; }
  .form__row { grid-template-columns: 1fr; gap: 0; }
  .section { padding: 80px 0; }
  .card, .step, .form { padding: 1.5rem; }
  .hero__cta .btn { flex: 1 1 100%; }
}

@media (max-width: 420px) {
  .about__facts { grid-template-columns: 1fr; }
}