/* ---------- Design tokens (repris de l'identité Projet Eichen) ---------- */
:root {
  --teal:        #6f9ea4;
  --teal-light:  #a8cdd1;
  --teal-dim:    #4a6b70;
  --slate:       #253335;

  --bg:          #0a0a0a;
  --bg-2:        #10171a;
  --bg-card:     rgba(20, 28, 29, 0.6);
  --border:      rgba(111, 158, 164, 0.18);
  --border-hover:rgba(111, 158, 164, 0.5);

  --text:        #eef3f3;
  --text-muted:  #93a8aa;
  --text-dim:    #57676a;

  --grad-main:   linear-gradient(135deg, var(--teal-light), var(--teal));
  --shadow-glow: 0 0 30px rgba(111, 158, 164, 0.22);
  --shadow-card: 0 8px 40px rgba(0, 0, 0, 0.5);

  --font-display: 'Cinzel Decorative', serif;
  --font-heading: 'Cinzel', serif;
  --font-body:    'Raleway', sans-serif;

  --nav-height: 76px;
  --max-width: 1000px;
  --ease-magic: cubic-bezier(0.16, 1, 0.3, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 16px;
  line-height: 1.75;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3 { font-family: var(--font-heading); font-weight: 600; margin: 0; }
p { margin: 0 0 1em; }
ul { margin: 0; padding: 0; list-style: none; }

.wrap { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; position: relative; z-index: 1; }

/* ---------- Ambient background ---------- */
.orb {
  position: fixed; border-radius: 50%; filter: blur(90px);
  pointer-events: none; z-index: 0;
  animation: orb-drift 20s ease-in-out infinite alternate;
}
.orb-1 { width: 520px; height: 520px; background: radial-gradient(circle, rgba(111,158,164,.14), transparent 70%); top: -160px; left: -140px; }
.orb-2 { width: 460px; height: 460px; background: radial-gradient(circle, rgba(37,51,53,.5), transparent 70%); bottom: -140px; right: -100px; animation-delay: -7s; }
@keyframes orb-drift { from { transform: translate(0,0) scale(1); } to { transform: translate(30px,40px) scale(1.1); } }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50; height: var(--nav-height);
  display: flex; align-items: center;
  background: rgba(10,10,10,.82); backdrop-filter: blur(16px) saturate(1.4);
  border-bottom: 1px solid var(--border);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; width: 100%; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--text); }
.brand-mark { width: 34px; height: 34px; flex: none; filter: drop-shadow(0 0 8px rgba(111,158,164,.35)); }
.brand-text { font-family: var(--font-display); font-weight: 700; font-size: 1rem; letter-spacing: .16em; white-space: nowrap; background: var(--grad-main); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.brand-sub { display: block; font-family: var(--font-body); font-size: .62rem; letter-spacing: .18em; text-transform: uppercase; color: var(--text-dim); margin-top: 2px; }

.primary-nav { display: flex; gap: 26px; align-items: center; }
.primary-nav a {
  text-decoration: none; color: var(--text-muted); font-size: 13px;
  letter-spacing: .05em; text-transform: uppercase; transition: color .2s ease;
  white-space: nowrap;
}
.primary-nav a:hover, .primary-nav a.active { color: var(--teal-light); }

/* ---------- Buttons ---------- */
.cta-row { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 30px; border-radius: 999px; text-decoration: none;
  font-family: var(--font-heading); font-size: 14px; letter-spacing: .06em;
  text-transform: uppercase; border: 1px solid transparent;
  transition: all .25s var(--ease-magic); cursor: pointer;
}
.btn-primary { background: var(--grad-main); color: #0a0a0a; font-weight: 600; box-shadow: var(--shadow-glow); }
.btn-primary:hover { filter: brightness(1.1); box-shadow: 0 0 40px rgba(111,158,164,.4); transform: translateY(-1px); }
.btn-ghost { color: var(--text); border-color: var(--border); background: rgba(255,255,255,.02); }
.btn-ghost:hover { border-color: var(--teal); color: var(--teal-light); box-shadow: var(--shadow-glow); }
.btn-whatsapp { background: #25D366; color: #06210f; font-weight: 600; box-shadow: 0 0 30px rgba(37,211,102,.25); }
.btn-whatsapp:hover { filter: brightness(1.08); box-shadow: 0 0 40px rgba(37,211,102,.4); transform: translateY(-1px); }

/* ---------- Hero ---------- */
.hero { position: relative; padding: 90px 0 70px; text-align: center; overflow: hidden; }
.hero-inner { max-width: 760px; margin: 0 auto; }
.kicker { text-transform: uppercase; letter-spacing: .2em; font-size: 12px; color: var(--teal-light); margin-bottom: 14px; }
.hero-title {
  font-family: var(--font-display); font-weight: 700;
  font-size: clamp(1.8rem, 5vw, 3.2rem); letter-spacing: .04em;
  margin-bottom: 20px; background: var(--grad-main);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  filter: drop-shadow(0 0 26px rgba(111,158,164,.22));
}
.hero-sub { font-size: 1.05rem; font-weight: 300; color: var(--text-muted); max-width: 620px; margin: 0 auto 34px; }

.hero-visual {
  max-width: 640px; margin: 0 auto 40px; border-radius: 20px;
  border: 1px solid var(--border); background: linear-gradient(180deg, var(--bg-2), var(--bg));
  padding: 28px; box-shadow: var(--shadow-card);
}
.hero-visual img { border-radius: 10px; margin: 0 auto; }
.hero-visual-caption { margin-top: 16px; font-size: .85rem; color: var(--text-dim); text-align: center; letter-spacing: .04em; }

/* ---------- Support banner ---------- */
.support-banner {
  max-width: 680px; margin: 0 auto 44px; text-align: center;
  border: 1px solid var(--border); border-radius: 14px;
  background: var(--bg-card); backdrop-filter: blur(10px);
  padding: 18px 26px; font-size: .92rem; color: var(--text-muted);
}
.support-banner strong { color: var(--teal-light); }

/* ---------- Sections ---------- */
.section { padding: 80px 0; position: relative; }
.section-alt { background: var(--bg-2); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section h2 { font-size: clamp(1.6rem, 3.2vw, 2.2rem); margin-bottom: 24px; }
.prose { max-width: 640px; color: var(--text-muted); font-size: 1rem; font-weight: 300; }
.prose p:last-child { margin-bottom: 0; }

/* ---------- Feature grid ---------- */
.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; margin-top: 36px; }
.feature-card {
  border: 1px solid var(--border); border-radius: 14px; background: var(--bg-card);
  backdrop-filter: blur(10px); padding: 26px; transition: border-color .2s ease, transform .2s ease;
}
.feature-card:hover { border-color: var(--border-hover); transform: translateY(-2px); }
.feature-icon { font-size: 1.4rem; color: var(--teal-light); margin-bottom: 12px; }
.feature-card h3 { font-size: 1.02rem; margin-bottom: 8px; }
.feature-card p { color: var(--text-muted); font-size: .9rem; margin: 0; }

/* ---------- Pricing ---------- */
.price-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 20px; margin-top: 36px; }
.price-card {
  border: 1px solid var(--border); border-radius: 16px; background: var(--bg-card);
  backdrop-filter: blur(10px); padding: 30px 24px; text-align: center;
}
.price-value { font-family: var(--font-heading); font-size: 2.1rem; color: var(--teal-light); margin-bottom: 6px; }
.price-value sup { font-size: 1rem; }
.price-label { font-size: .98rem; color: var(--text); margin-bottom: 4px; }
.price-detail { font-size: .82rem; color: var(--text-dim); letter-spacing: .03em; }

.price-special {
  margin-top: 28px; border: 1px solid var(--border-hover); border-radius: 14px;
  background: var(--bg-card); padding: 24px 28px;
}
.price-special-tag {
  display: inline-block; font-size: .72rem; letter-spacing: .12em; text-transform: uppercase;
  color: var(--teal-light); border: 1px solid var(--border); border-radius: 999px;
  padding: 4px 12px; margin-bottom: 12px;
}
.price-special p { margin: 0; }
.price-special .route { font-family: var(--font-heading); font-size: 1.15rem; color: var(--text); margin-bottom: 14px; }
.price-special .note { font-size: .85rem; color: var(--text-dim); font-style: italic; margin-top: 14px; }

.price-special-tiers { display: flex; flex-direction: column; gap: 8px; }
.price-special-tiers li {
  display: flex; justify-content: space-between; align-items: center;
  padding: 8px 14px; border-radius: 8px; background: rgba(255,255,255,.02);
  border: 1px solid var(--border); font-size: .9rem; color: var(--text-muted);
}
.price-special-tiers li strong { color: var(--teal-light); font-family: var(--font-heading); font-weight: 600; }

.price-notes { margin-top: 30px; font-size: .85rem; color: var(--text-dim); }
.price-notes li { margin-bottom: 6px; padding-left: 18px; position: relative; }
.price-notes li::before { content: attr(data-n); position: absolute; left: 0; top: 0; color: var(--teal-light); }

/* ---------- Calculatrice de tarifs ---------- */
.calc-box {
  margin-top: 40px; border: 1px solid var(--border); border-radius: 16px;
  background: var(--bg-card); backdrop-filter: blur(10px); padding: 30px;
}
.calc-box h3 { font-size: 1.05rem; margin-bottom: 20px; }
.calc-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 16px; margin-bottom: 16px; }
.calc-field {
  display: flex; flex-direction: column; gap: 6px; font-size: .82rem;
  color: var(--text-muted); letter-spacing: .03em;
}
.calc-field input, .calc-field select {
  font-family: var(--font-body); font-size: .95rem; color: var(--text);
  background: var(--bg-2); border: 1px solid var(--border); border-radius: 8px;
  padding: 10px 12px; outline: none; transition: border-color .2s ease;
}
.calc-field input:focus, .calc-field select:focus { border-color: var(--border-hover); }
.calc-check {
  display: flex; align-items: center; gap: 10px; font-size: .88rem;
  color: var(--text-muted); margin-bottom: 18px; cursor: pointer;
}
.calc-check input { accent-color: var(--teal); width: 16px; height: 16px; }
.calc-result {
  display: flex; flex-direction: column; align-items: center; text-align: center;
  border-top: 1px solid var(--border); padding-top: 20px; margin-top: 4px;
}
.calc-result-value { font-family: var(--font-heading); font-size: 2rem; color: var(--teal-light); }
.calc-result-detail { font-size: .82rem; color: var(--text-dim); margin-top: 6px; }

/* ---------- Booking ---------- */
.booking-box {
  max-width: 640px; margin: 36px auto 0; border: 1px solid var(--border);
  border-radius: 18px; background: var(--bg-card); backdrop-filter: blur(10px);
  padding: 36px; text-align: center;
}
.booking-steps { text-align: left; max-width: 460px; margin: 0 auto 30px; }
.booking-steps li {
  display: flex; gap: 14px; margin-bottom: 16px; font-size: .95rem; color: var(--text-muted);
}
.booking-steps li:last-child { margin-bottom: 0; }
.step-num {
  flex: none; width: 26px; height: 26px; border-radius: 50%;
  border: 1px solid var(--border-hover); color: var(--teal-light);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-heading); font-size: .82rem;
}

/* ---------- FAQ ---------- */
.faq-list { display: flex; flex-direction: column; gap: 12px; margin-top: 30px; max-width: 720px; }
.faq-item {
  border: 1px solid var(--border); border-radius: 12px; background: var(--bg-card);
  backdrop-filter: blur(10px); padding: 0; overflow: hidden;
}
.faq-item summary {
  cursor: pointer; list-style: none; padding: 18px 22px;
  font-family: var(--font-heading); font-size: .96rem; color: var(--text);
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  transition: color .2s ease;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::marker { content: ''; }
.faq-item summary::after {
  content: '+'; font-size: 1.2rem; color: var(--teal-light); flex: none;
  transition: transform .2s ease;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item[open] summary { color: var(--teal-light); }
.faq-item p {
  margin: 0; padding: 0 22px 18px; color: var(--text-muted); font-size: .9rem;
}

/* ---------- Calendrier de disponibilités ---------- */
.cal-wrap { margin: 40px 0; text-align: left; }
.cal-legend {
  display: flex; justify-content: center; gap: 24px; flex-wrap: wrap;
  margin-bottom: 28px; font-size: .82rem; color: var(--text-muted);
}
.cal-legend span { display: inline-flex; align-items: center; gap: 8px; }
.cal-dot { display: inline-block; width: 10px; height: 10px; border-radius: 50%; }
.cal-dot-available { background: var(--teal-light); }
.cal-dot-unavailable { background: #c96b6b; }
.cal-dot-past { background: var(--text-dim); }

.cal-months { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px; }
.cal-month {
  border: 1px solid var(--border); border-radius: 14px; background: var(--bg-card);
  backdrop-filter: blur(10px); padding: 20px;
}
.cal-month-label {
  text-align: center; font-size: .95rem; letter-spacing: .04em;
  color: var(--teal-light); margin-bottom: 14px; text-transform: uppercase;
}
.cal-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 6px; }
.cal-dow {
  text-align: center; font-size: .72rem; color: var(--text-dim);
  text-transform: uppercase; padding-bottom: 4px;
}
.cal-day {
  display: flex; align-items: center; justify-content: center;
  aspect-ratio: 1; border-radius: 8px; font-size: .82rem; font-family: var(--font-body);
  border: 1px solid transparent; background: none; color: var(--text); cursor: default;
}
.cal-day-empty { visibility: hidden; }
.cal-day-past { color: var(--text-dim); opacity: .4; }
.cal-day-available {
  background: rgba(111, 158, 164, 0.1); border-color: var(--border);
  color: var(--text);
}
.cal-day-unavailable {
  background: rgba(201, 107, 107, 0.14); border-color: rgba(201, 107, 107, 0.35);
  color: #e3a6a6;
}
button.cal-day { cursor: pointer; transition: transform .15s ease, border-color .15s ease; }
button.cal-day:hover:not(:disabled) { border-color: var(--border-hover); transform: translateY(-1px); }
button.cal-day:disabled { opacity: .5; cursor: wait; }
.cal-day-clickable { cursor: pointer; }
.cal-day-selected {
  background: var(--grad-main) !important; color: #0a0a0a !important;
  border-color: transparent !important; font-weight: 600;
  box-shadow: var(--shadow-glow);
}
.cal-status { text-align: center; font-size: .82rem; color: var(--teal-light); margin-top: 18px; min-height: 1.2em; }

/* ---------- Connexion admin ---------- */
.login-box {
  border: 1px solid var(--border); border-radius: 14px; background: var(--bg-card);
  backdrop-filter: blur(10px); padding: 30px;
}
.login-error { font-size: .85rem; color: #e3a6a6; margin-bottom: 14px; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--border); padding: 30px 0; }
.footer-inner { display: flex; flex-direction: column; align-items: center; gap: 8px; text-align: center; font-size: .82rem; color: var(--text-dim); }
.footer-inner a { text-decoration: none; color: var(--text-dim); }
.footer-inner a:hover { color: var(--teal-light); }

@media (max-width: 600px) {
  .primary-nav { gap: 16px; }
  .hero-visual { padding: 16px; }
  .booking-box { padding: 26px; }
}