/* 707 IA Solutions — feuille de style unique
   Palette : blanc / gris anthracite #1a1a1a / teal #0ea5a0
*/

:root {
  --color-ink: #1a1a1a;
  --color-ink-soft: #3a3a3a;
  --color-muted: #6b6b6b;
  --color-line: #e7e7e7;
  --color-bg: #ffffff;
  --color-bg-soft: #fafafa;
  --color-accent: #0ea5a0;
  --color-accent-dark: #0a827e;
  --color-accent-bg: #e6f7f6;
  --color-success: #16a34a;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.04), 0 2px 8px rgba(0,0,0,.04);
  --shadow-md: 0 4px 20px rgba(0,0,0,.06);
  --font: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --maxw: 1140px;
}

/* Reset minimal */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-ink);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; display: block; }
a { color: var(--color-accent-dark); text-decoration: none; }
a:hover { text-decoration: underline; }
button, input, textarea, select { font: inherit; color: inherit; }
h1, h2, h3, h4 { line-height: 1.2; margin: 0 0 .5em; letter-spacing: -.02em; }
h1 { font-size: clamp(2.1rem, 5vw, 3.4rem); font-weight: 800; }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.3rem); font-weight: 700; }
h3 { font-size: 1.2rem; font-weight: 700; }
p { margin: 0 0 1em; color: var(--color-ink-soft); }

/* Layout */
.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-alt { background: var(--color-bg-soft); }
.section-dark { background: var(--color-ink); color: #fff; }
.section-dark p { color: #cfcfcf; }

.text-center { text-align: center; }
.eyebrow {
  display: inline-block;
  font-size: .8rem;
  text-transform: uppercase;
  letter-spacing: .14em;
  color: var(--color-accent);
  font-weight: 700;
  margin-bottom: 12px;
}

/* Header / Nav */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-line);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  height: 68px;
}
.brand {
  font-weight: 800; font-size: 1.3rem; letter-spacing: -.02em;
  color: var(--color-ink);
}
.brand-dot { color: var(--color-accent); }
.nav-links {
  display: flex; gap: 28px; list-style: none; margin: 0; padding: 0;
}
.nav-links a {
  color: var(--color-ink-soft); font-weight: 500; font-size: .95rem;
}
.nav-links a:hover { color: var(--color-accent); text-decoration: none; }
.nav-cta {
  background: var(--color-ink); color: #fff;
  padding: 10px 18px; border-radius: var(--radius-sm);
  font-weight: 600; font-size: .9rem;
}
.nav-cta:hover { background: var(--color-accent); text-decoration: none; }
.nav-burger { display: none; background: none; border: 0; cursor: pointer; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 26px;
  border-radius: var(--radius-sm);
  font-weight: 600; font-size: 1rem;
  text-decoration: none;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform .15s ease, background .15s ease, color .15s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--color-accent); color: #fff; }
.btn-primary:hover { background: var(--color-accent-dark); color: #fff; }
.btn-secondary { background: var(--color-ink); color: #fff; }
.btn-secondary:hover { background: #000; color: #fff; }
.btn-ghost { border-color: var(--color-line); color: var(--color-ink); background: #fff; }
.btn-ghost:hover { border-color: var(--color-accent); color: var(--color-accent); }

/* Hero */
.hero {
  padding: 96px 0 80px;
  background: radial-gradient(1200px 500px at 50% -10%, rgba(14,165,160,.10), transparent 60%),
              var(--color-bg);
  text-align: center;
}
.hero h1 { max-width: 18ch; margin-left: auto; margin-right: auto; }
.hero-sub {
  font-size: 1.2rem; color: var(--color-ink-soft);
  max-width: 58ch; margin: 20px auto 32px;
}
.hero-cta-row { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.hero-micro {
  margin-top: 18px; font-size: .9rem; color: var(--color-muted);
  display: inline-flex; align-items: center; gap: 10px;
}
.hero-micro .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--color-success); }

/* Cards grid */
.grid {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(380px, 1fr)); }

.card {
  background: #fff;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  transition: transform .15s ease, box-shadow .15s ease;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.card h3 { margin-top: 14px; }
.card p { margin-bottom: 0; }

.icon-chip {
  width: 48px; height: 48px;
  background: var(--color-accent-bg);
  color: var(--color-accent-dark);
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
}
.icon-chip svg { width: 26px; height: 26px; }

/* Steps */
.steps {
  display: grid; gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  counter-reset: step;
}
.step {
  background: #fff;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 28px;
  position: relative;
}
.step::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  top: -18px; left: 20px;
  width: 36px; height: 36px;
  background: var(--color-accent); color: #fff;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700;
}

/* Public / badges */
.tags { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
.tag {
  background: #fff;
  border: 1px solid var(--color-line);
  padding: 8px 16px;
  border-radius: 100px;
  font-size: .9rem;
  color: var(--color-ink-soft);
  font-weight: 500;
}

/* Témoignages */
.quote {
  background: #fff;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 28px;
  position: relative;
}
.quote p { font-size: 1.02rem; color: var(--color-ink); font-style: italic; }
.quote-author {
  display: flex; align-items: center; gap: 12px;
  margin-top: 18px; font-size: .9rem; color: var(--color-muted);
}
.avatar {
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--color-accent-bg);
  color: var(--color-accent-dark);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700;
}

/* CTA section */
.cta-block {
  background: var(--color-ink);
  color: #fff;
  border-radius: var(--radius);
  padding: 56px 40px;
  text-align: center;
}
.cta-block h2 { color: #fff; }
.cta-block p { color: #cfcfcf; max-width: 52ch; margin: 0 auto 24px; }

/* Services packs */
.pack {
  background: #fff;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 32px;
  display: flex; flex-direction: column; gap: 16px;
}
.pack-featured {
  border: 2px solid var(--color-accent);
  background: linear-gradient(180deg, rgba(14,165,160,.05), #fff 50%);
  position: relative;
}
.pack-badge {
  position: absolute; top: -14px; left: 32px;
  background: var(--color-accent); color: #fff;
  padding: 4px 12px; border-radius: 100px;
  font-size: .75rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
}
.pack-name { font-size: 1.3rem; font-weight: 800; margin: 0; }
.pack-price { font-size: 2rem; font-weight: 800; color: var(--color-ink); margin: 0; }
.pack-price small { font-size: .9rem; font-weight: 500; color: var(--color-muted); }
.pack-desc { color: var(--color-ink-soft); font-size: .95rem; }
.pack-features { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }
.pack-features li {
  display: flex; gap: 10px; align-items: flex-start;
  font-size: .94rem; color: var(--color-ink-soft);
}
.pack-features svg { flex: 0 0 20px; color: var(--color-accent); margin-top: 2px; }

/* FAQ */
.faq details {
  border-top: 1px solid var(--color-line);
  padding: 18px 0;
}
.faq details:last-child { border-bottom: 1px solid var(--color-line); }
.faq summary {
  font-weight: 600; cursor: pointer; list-style: none;
  display: flex; justify-content: space-between; align-items: center;
  color: var(--color-ink);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: '+'; font-size: 1.4rem; color: var(--color-accent);
  transition: transform .2s ease;
}
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { margin-top: 14px; }

/* Forms */
.form-wrap {
  max-width: 620px; margin: 0 auto;
  background: #fff;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 36px;
  box-shadow: var(--shadow-sm);
}
.form-row { margin-bottom: 18px; }
.form-row label {
  display: block; margin-bottom: 6px;
  font-size: .88rem; font-weight: 600; color: var(--color-ink);
}
.form-row input, .form-row textarea, .form-row select {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  background: #fff;
  outline: none;
  transition: border-color .15s ease;
}
.form-row input:focus, .form-row textarea:focus, .form-row select:focus {
  border-color: var(--color-accent);
}
.form-row textarea { min-height: 110px; resize: vertical; }
.form-hp { position: absolute; left: -9999px; }
.form-note {
  font-size: .85rem; color: var(--color-muted); text-align: center;
  margin-top: 12px;
}
.form-reassure {
  display: flex; gap: 16px; justify-content: center; flex-wrap: wrap;
  font-size: .85rem; color: var(--color-muted);
  margin-bottom: 24px;
}
.form-reassure span { display: inline-flex; align-items: center; gap: 6px; }
.form-reassure svg { color: var(--color-success); width: 16px; height: 16px; }
.form-success {
  display: none;
  background: var(--color-accent-bg);
  border: 1px solid var(--color-accent);
  color: var(--color-accent-dark);
  padding: 18px;
  border-radius: var(--radius-sm);
  text-align: center;
  font-weight: 600;
}
.form-success.show { display: block; }

/* Footer */
.site-footer {
  background: var(--color-ink);
  color: #bdbdbd;
  padding: 56px 0 24px;
}
.site-footer a { color: #e7e7e7; }
.footer-grid {
  display: grid;
  gap: 40px;
  grid-template-columns: 1.3fr 1fr 1fr;
  margin-bottom: 36px;
}
.footer-brand .brand { color: #fff; }
.footer-brand p { color: #a0a0a0; }
.footer-col h4 { color: #fff; font-size: .9rem; text-transform: uppercase; letter-spacing: .08em; margin-bottom: 14px; }
.footer-col ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; font-size: .94rem; }
.footer-bottom {
  border-top: 1px solid #2a2a2a;
  padding-top: 20px;
  display: flex; justify-content: space-between; align-items: center;
  font-size: .85rem; color: #8a8a8a;
  flex-wrap: wrap; gap: 12px;
}
.social-icons { display: flex; gap: 14px; }
.social-icons a {
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  background: #2a2a2a; border-radius: 50%;
}
.social-icons a:hover { background: var(--color-accent); }
.social-icons svg { width: 18px; height: 18px; color: #fff; }

/* Responsive */
@media (max-width: 800px) {
  .nav-links { display: none; position: absolute; top: 68px; left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--color-line);
    padding: 18px 24px; flex-direction: column; gap: 14px; }
  .nav-links.open { display: flex; }
  .nav-burger { display: block; }
  .footer-grid { grid-template-columns: 1fr; }
  .section { padding: 56px 0; }
  .hero { padding: 64px 0 48px; }
  .cta-block { padding: 40px 24px; }
  .form-wrap { padding: 24px; }
}

/* Utilities */
.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}