/* ════════════════════════════════════════════════
   Jean Echalier — Landing pages (Pack de Démarrage / LaunchPad IA)
   Réutilise les tokens du portfolio (classic.css / style.css)
   ════════════════════════════════════════════════ */

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

:root {
  --white: #fafaf9;
  --white-2: #f1efec;
  --black: #111110;
  --gray-300: #d6d3d1;
  --gray-500: #78716c;
  --gray-700: #44403c;
  --gold: #9c6e49;
  --gold-2: #b98a5e;
  --font-sans: 'Inter', system-ui, sans-serif;
  --font-serif: 'Playfair Display', Georgia, serif;
  --max-w: 860px;
  --section-gap: clamp(56px, 9vw, 100px);
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--white);
  color: var(--black);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

/* ── Header ── */
.l-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 28px clamp(20px, 5vw, 0px);
}
.l-header .logo {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.1rem;
  text-decoration: none;
  letter-spacing: 0.04em;
}
.l-header .back-link {
  font-size: 0.85rem;
  color: var(--gray-700);
  text-decoration: none;
  border-bottom: 1px solid var(--gray-300);
  padding-bottom: 2px;
}
.l-header .back-link:hover { color: var(--gold); border-color: var(--gold); }

/* ── Layout helpers ── */
.l-section { padding: var(--section-gap) clamp(20px, 5vw, 0px); }
.l-inner { max-width: var(--max-w); margin: 0 auto; }
.l-inner--narrow { max-width: 620px; }

/* ── Hero / banner ── */
.l-hero {
  background: var(--white-2);
  border-radius: 20px;
  padding: clamp(40px, 7vw, 72px) clamp(24px, 6vw, 56px);
  text-align: center;
}
.l-eyebrow {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 18px;
  display: block;
}
.l-h1 {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(2rem, 4.4vw, 3.2rem);
  line-height: 1.12;
  margin-bottom: 20px;
}
.l-lede {
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  color: var(--gray-700);
  max-width: 620px;
  margin: 0 auto;
}

/* ── Section titles ── */
.l-h2 {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  line-height: 1.2;
  margin-bottom: 28px;
  text-align: center;
}

/* ── Grids ── */
.l-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}
.l-grid-3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 24px;
}
@media (max-width: 720px) {
  .l-grid-2, .l-grid-3 { grid-template-columns: 1fr; }
}
.l-card h3 {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.15rem;
  margin-bottom: 10px;
}
.l-card p { color: var(--gray-700); font-size: 0.97rem; }

/* ── Highlight box ── */
.l-box {
  background: var(--white-2);
  border: 1px solid var(--gray-300);
  border-radius: 16px;
  padding: clamp(24px, 5vw, 40px);
}
.l-box h3 { text-align: center; margin-bottom: 20px; }

/* ── Program list ── */
.l-program { list-style: none; }
.l-program li {
  padding: 14px 0;
  border-bottom: 1px solid var(--gray-300);
  font-size: 0.98rem;
}
.l-program li:last-child { border-bottom: none; }
.l-program strong { font-family: var(--font-serif); color: var(--gold); }

/* ── FAQ ── */
.l-faq { max-width: 680px; margin: 0 auto; }
.l-faq details {
  border-bottom: 1px solid var(--gray-300);
  padding: 18px 0;
}
.l-faq summary {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.05rem;
  cursor: pointer;
  list-style: none;
}
.l-faq summary::-webkit-details-marker { display: none; }
.l-faq summary::after { content: '+'; float: right; color: var(--gold); font-size: 1.3rem; }
.l-faq details[open] summary::after { content: '–'; }
.l-faq p { margin-top: 12px; color: var(--gray-700); }

/* ── Buttons ── */
.l-btn {
  display: inline-block;
  background: var(--black);
  color: var(--white);
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 1rem;
  padding: 16px 36px;
  border-radius: 999px;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: background 0.25s ease, transform 0.25s ease;
}
.l-btn:hover { background: var(--gold); transform: translateY(-1px); }
.l-btn-wrap { text-align: center; }
.l-price-note { font-size: 0.85rem; color: var(--gray-500); margin-top: 12px; }

/* ── Capture form ── */
.l-form {
  max-width: 420px;
  margin: 32px auto 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.l-form input {
  width: 100%;
  font-family: var(--font-sans);
  font-size: 1rem;
  padding: 14px 18px;
  border: 1px solid var(--gray-300);
  border-radius: 10px;
  background: var(--white);
  color: var(--black);
}
.l-form input:focus { outline: 2px solid var(--gold); outline-offset: 1px; }
.l-form button { margin-top: 4px; }
.l-form-note { font-size: 0.8rem; color: var(--gray-500); margin-top: 10px; }
.l-thanks {
  display: none;
  max-width: 420px;
  margin: 32px auto 0;
  background: var(--white);
  border: 1px solid var(--gold);
  border-radius: 12px;
  padding: 20px;
  text-align: center;
}
.l-thanks.is-visible { display: block; }
.l-thanks p { font-family: var(--font-serif); font-weight: 700; }

/* ── Table of contents (formation) ── */
.l-toc {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin: 28px 0 0;
}
.l-toc a {
  font-size: 0.85rem;
  text-decoration: none;
  color: var(--gray-700);
  background: var(--white);
  border: 1px solid var(--gray-300);
  border-radius: 999px;
  padding: 8px 16px;
  transition: border-color 0.2s ease, color 0.2s ease;
}
.l-toc a:hover { border-color: var(--gold); color: var(--gold); }

/* ── Day module (formation) ── */
.l-day {
  border-top: 1px solid var(--gray-300);
  padding: var(--section-gap) 0;
  scroll-margin-top: 24px;
}
.l-day:first-of-type { border-top: none; }
.l-day-kicker {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  display: block;
  margin-bottom: 10px;
}
.l-day h2 {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-bottom: 18px;
}
.l-day h4 {
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--gray-500);
  margin: 22px 0 8px;
}
.l-day ul { padding-left: 20px; color: var(--gray-700); }
.l-day li { margin-bottom: 8px; }
.l-day p { color: var(--gray-700); }

/* ── Prompt block (copyable) ── */
.l-prompt {
  background: var(--black);
  color: var(--white);
  border-radius: 14px;
  padding: 22px 24px;
  margin-top: 10px;
  position: relative;
}
.l-prompt p {
  color: var(--white-2);
  font-size: 0.92rem;
  line-height: 1.6;
  white-space: pre-wrap;
  padding-right: 90px;
}
.l-copy-btn {
  position: absolute;
  top: 18px;
  right: 18px;
  background: var(--gold);
  color: var(--black);
  border: none;
  border-radius: 999px;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 500;
  padding: 7px 14px;
  cursor: pointer;
  transition: background 0.2s ease;
}
.l-copy-btn:hover { background: var(--gold-2); }
.l-copy-btn.is-copied { background: #4caf7d; color: var(--white); }

/* ── Footer ── */
.l-footer {
  text-align: center;
  padding: 40px 20px 60px;
  font-size: 0.82rem;
  color: var(--gray-500);
}
.l-footer a { color: var(--gray-700); text-decoration: underline; }