:root {
    --blue: #079fd3;
    --blue-dark: #087ba5;
    --blue-deep: #075c7b;
    --aqua: #54d1d1;
    --navy: #163344;
    --mint: #e8f8f4;
    --sky: #eef9fd;
    --coral: #ff8f7d;
    --sand: #fffaf0;
    --white: #fff;
    --muted: #5f7480;
    --border: #d8ebf1;
    --shadow: 0 18px 50px rgba(20, 74, 94, .12);
    --radius: 22px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--navy); background: #fff; font-family: Nunito, system-ui, sans-serif; font-size: 16px; line-height: 1.65; }
a { color: inherit; }
img { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
h1, h2, h3 { margin: 0 0 .65rem; line-height: 1.12; font-weight: 900; }
h1 { font-size: clamp(2.5rem, 6vw, 5.2rem); }
h2 { font-size: clamp(2rem, 4vw, 3.2rem); }
h3 { font-size: 1.35rem; }
p { margin: 0 0 1rem; }
.container { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }
.narrow { max-width: 820px; }
.center { text-align: center; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

.site-header { position: sticky; top: 0; z-index: 50; border-bottom: 1px solid rgba(216,235,241,.85); background: rgba(255,255,255,.94); backdrop-filter: blur(14px); }
.header-inner { display: flex; min-height: 76px; align-items: center; justify-content: space-between; gap: 30px; }
.brand { display: inline-flex; align-items: center; gap: 12px; color: var(--blue-dark); font-size: 1.06rem; font-weight: 900; text-decoration: none; }
.brand-logo { display: block; width: 52px; height: 52px; flex: 0 0 auto; border: 2px solid #fff; border-radius: 50%; object-fit: cover; box-shadow: 0 5px 20px rgba(7,159,211,.24); }
.brand-logo-footer { margin-bottom: 14px; border-color: rgba(255,255,255,.55); }
.main-nav { display: flex; align-items: center; gap: 28px; }
.main-nav a { font-weight: 800; text-decoration: none; }
.main-nav > a:not(.button):hover { color: var(--blue); }
.menu-toggle { display: none; width: 46px; height: 42px; padding: 9px; border: 0; border-radius: 12px; background: var(--sky); cursor: pointer; }
.menu-toggle span:not(.sr-only) { display: block; height: 2px; margin: 5px 0; border-radius: 3px; background: var(--blue-dark); }

.button { display: inline-flex; min-height: 50px; align-items: center; justify-content: center; padding: 13px 24px; border: 0; border-radius: 999px; color: #fff; background: linear-gradient(135deg, var(--blue), #0a8fbd); box-shadow: 0 11px 25px rgba(0,153,207,.25); font-weight: 900; text-decoration: none; cursor: pointer; transition: transform .2s, box-shadow .2s; }
.button:hover { transform: translateY(-2px); box-shadow: 0 15px 30px rgba(0,153,207,.33); }
.button-small { min-height: 40px; padding: 9px 18px; font-size: .91rem; }
.button-light { color: var(--blue-dark); background: #fff; box-shadow: 0 11px 25px rgba(13,64,85,.15); }
.text-link { color: var(--blue-dark); font-weight: 900; text-decoration: none; }
.eyebrow { display: block; margin-bottom: 14px; color: rgba(255,255,255,.9); font-size: .8rem; font-weight: 900; letter-spacing: .14em; text-transform: uppercase; }
.text-blue { color: var(--blue-dark); }

.hero { position: relative; display: grid; min-height: 720px; place-items: center; overflow: hidden; color: #fff; text-align: center; background-color: #168db5; background-image: linear-gradient(180deg, rgba(5,64,88,.22), rgba(5,76,102,.68)), url('../images/hero.jpg'); background-position: center; background-size: cover; }
.hero::before { position: absolute; inset: 0; content: ''; background: radial-gradient(circle at 50% 35%, transparent 0 20%, rgba(1,45,64,.16) 70%); }
.hero-content { position: relative; z-index: 2; max-width: 1040px; padding-block: 90px; }
.hero h1 { color: #fff; text-shadow: 0 5px 24px rgba(0,35,49,.26); }
.hero-lead { margin-bottom: .4rem; font-size: clamp(1.25rem, 2.7vw, 2rem); font-weight: 900; }
.hero-content > p:not(.hero-lead) { font-size: clamp(1rem, 2vw, 1.25rem); }
.hero-actions { display: flex; justify-content: center; gap: 16px; margin: 32px 0 24px; }
.hero-goodbye { font-size: 1.25rem; }
.section { padding: 100px 0; }
.section-tint { background: linear-gradient(180deg, var(--sky), #f9fdff); }
.intro { background: #fff; }
.large-text { color: var(--muted); font-size: 1.18rem; }
.experience-section { padding-top: 30px; }
.experience-grid { display: grid; grid-template-columns: 1.1fr .9fr; align-items: center; gap: clamp(35px, 7vw, 90px); }
.experience-photo { min-height: 560px; border-radius: 30px; background: linear-gradient(180deg, transparent, rgba(4,42,58,.18)), url('../images/coucher-soleil.jpg') center / cover; box-shadow: var(--shadow); }
.experience-points { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }
.experience-points span { padding: 8px 13px; border-radius: 999px; color: var(--blue-dark); background: var(--sky); font-size: .84rem; font-weight: 900; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 30px; margin-bottom: 42px; }
.activity-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.activity-card { overflow: hidden; border: 1px solid var(--border); border-radius: var(--radius); background: #fff; box-shadow: var(--shadow); }
.activity-visual { display: grid; height: 220px; place-items: center; overflow: hidden; color: rgba(255,255,255,.88); background-color: var(--blue); background-position: center; background-size: cover; }
.activity-visual span { display: grid; width: 82px; height: 82px; place-items: center; border: 2px solid rgba(255,255,255,.7); border-radius: 50%; background: rgba(255,255,255,.15); backdrop-filter: blur(10px); font-size: 2rem; font-weight: 900; }
.activity-pedalo .activity-visual { background-image: linear-gradient(135deg, rgba(0,146,192,.38), rgba(4,82,119,.5)), url('../images/pedalo.jpg'); }
.activity-kayak .activity-visual { background-image: linear-gradient(135deg, rgba(0,146,192,.38), rgba(4,82,119,.5)), url('../images/kayak.jpg'); }
.activity-paddle .activity-visual { background-image: linear-gradient(135deg, rgba(0,146,192,.38), rgba(4,82,119,.5)), url('../images/paddle.jpg'); }
.activity-toboggan .activity-visual { background-image: linear-gradient(135deg, rgba(0,146,192,.38), rgba(4,82,119,.5)), url('../images/toboggan.jpg'); }
.activity-pedalo-toboggan .activity-visual { background-image: linear-gradient(135deg, rgba(0,146,192,.38), rgba(4,82,119,.5)), url('../images/toboggan.jpg'); }
.activity-velo-eau .activity-visual { background-image: linear-gradient(135deg, rgba(0,146,192,.38), rgba(4,82,119,.5)), url('../images/velo-eau.jpg'); }
.activity-body { padding: 26px; }
.activity-body p { color: var(--muted); }
.activity-tag { display: inline-block; margin-bottom: 12px; padding: 5px 11px; border-radius: 999px; color: var(--blue-dark); background: var(--sky); font-size: .75rem; font-weight: 900; text-transform: uppercase; }
.card-footer { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-top: 22px; }
.pricing-section { background: #fff; }
.pricing-note { max-width: 390px; color: var(--muted); }
.pricing-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.price-card { padding: 25px 22px; border: 1px solid var(--border); border-radius: 19px; background: linear-gradient(180deg, #fff, #f8fdff); box-shadow: 0 12px 32px rgba(20,74,94,.07); }
.price-card h3 { min-height: 3rem; font-size: 1.12rem; }
.price-card dl { margin: 20px 0; }
.price-card dl div { display: flex; justify-content: space-between; gap: 10px; padding: 10px 0; border-bottom: 1px solid var(--border); }
.price-card dt { color: var(--muted); }
.price-card dd { margin: 0; color: var(--blue-dark); font-weight: 900; }
.price-card .text-link { font-size: .86rem; }
.info-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.info-card { padding: 30px; border: 1px solid var(--border); border-top-width: 5px; border-radius: var(--radius); background: #fff; box-shadow: 0 12px 36px rgba(20,74,94,.08); }
.info-card p { color: var(--muted); }
.info-icon { display: grid; width: 44px; height: 44px; margin-bottom: 18px; place-items: center; border-radius: 14px; color: var(--blue-dark); background: var(--sky); font-size: 1.3rem; font-weight: 900; }
.accent-green { border-top-color: #58c9a5; }
.accent-blue { border-top-color: var(--blue); }
.accent-coral { border-top-color: var(--coral); }
.cta-section { padding-top: 20px; }
.cta-card { display: flex; align-items: center; justify-content: space-between; gap: 35px; padding: 46px; border-radius: 30px; color: #fff; background: linear-gradient(135deg, var(--blue), var(--blue-deep)); box-shadow: var(--shadow); }

.page-hero { padding: 75px 0; color: #fff; background: linear-gradient(135deg, var(--blue), var(--blue-deep)); }
.page-hero h1 { font-size: clamp(2.4rem, 5vw, 4.2rem); }
.booking-section { background: var(--sky); }
.booking-layout { display: grid; grid-template-columns: .75fr 1.75fr; align-items: start; gap: 30px; }
.notice-card, .form-card, .contact-mini { border: 1px solid var(--border); border-radius: var(--radius); background: #fff; box-shadow: var(--shadow); }
.notice-card { padding: 28px; }
.notice-card h2 { font-size: 1.35rem; }
.notice-card ul { margin: 18px 0 0; padding-left: 20px; color: var(--muted); }
.notice-card li + li { margin-top: 10px; }
.contact-mini { display: flex; flex-direction: column; margin-top: 20px; padding: 22px 26px; }
.contact-mini a { color: var(--blue-dark); font-weight: 900; text-decoration: none; }
.form-card { padding: clamp(24px, 4vw, 44px); }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 22px; }
.field { display: grid; gap: 8px; font-size: .92rem; font-weight: 900; }
.field-full { grid-column: 1 / -1; }
.field input, .field select, .field textarea { width: 100%; min-height: 52px; padding: 12px 15px; border: 1px solid #c9dfe7; border-radius: 12px; outline: none; color: var(--navy); background: #fff; font-weight: 600; transition: border .2s, box-shadow .2s; }
.field textarea { resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--blue); box-shadow: 0 0 0 4px rgba(7,159,211,.12); }
.form-submit { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-top: 30px; padding-top: 24px; border-top: 1px solid var(--border); }
.form-submit p { margin: 0; color: var(--blue-dark); font-weight: 900; }
.flash { margin-top: 18px; padding: 16px 20px; border-radius: 14px; font-weight: 700; }
.flash-error { color: #8f2b2b; background: #fff0ee; border: 1px solid #ffc8c0; }
.flash-success { color: #176445; background: #e9fff5; border: 1px solid #b8efd9; }
.success-section { min-height: 70vh; display: grid; place-items: center; background: var(--sky); }
.success-card { padding: 50px; border-radius: 30px; background: #fff; box-shadow: var(--shadow); }
.success-icon { display: grid; width: 78px; height: 78px; margin: 0 auto 25px; place-items: center; border-radius: 50%; color: #fff; background: #50c59c; font-size: 2.1rem; font-weight: 900; }
.reference { margin: 25px auto; padding: 14px 20px; border-radius: 12px; background: var(--sky); }
.success-dialog { width: min(540px, calc(100% - 32px)); max-height: calc(100vh - 32px); padding: 0; overflow: auto; border: 0; border-radius: 28px; color: var(--navy); background: #fff; box-shadow: 0 30px 90px rgba(7, 50, 70, .32); }
.success-dialog::backdrop { background: rgba(7, 38, 53, .64); backdrop-filter: blur(5px); }
.success-dialog-content { padding: clamp(30px, 6vw, 48px); text-align: center; }
.success-dialog-content h2 { font-size: clamp(1.8rem, 5vw, 2.5rem); }
.success-dialog-content p { color: var(--muted); }
.success-dialog-content .success-icon { width: 72px; height: 72px; margin-bottom: 20px; }
.success-dialog-content .button { min-width: 190px; }

.site-footer { position: relative; margin-top: 70px; padding: 90px 0 24px; color: rgba(255,255,255,.92); background: var(--blue); }
.wave { position: absolute; top: -40px; left: 0; width: 100%; height: 70px; border-radius: 50% 50% 0 0 / 100% 100% 0 0; background: var(--blue); }
.footer-grid { display: grid; grid-template-columns: 1.25fr 1fr 1fr; gap: 50px; }
.site-footer h2, .site-footer h3 { color: #fff; }
.site-footer a { color: #fff; text-decoration: none; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; margin-top: 45px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.22); font-size: .88rem; }

@media (max-width: 850px) {
    .menu-toggle { display: block; }
    .main-nav { position: absolute; top: 76px; right: 20px; left: 20px; display: none; align-items: stretch; padding: 20px; border: 1px solid var(--border); border-radius: 18px; background: #fff; box-shadow: var(--shadow); }
    .main-nav.is-open { display: grid; }
    .main-nav .button { width: 100%; }
    .activity-grid, .info-grid, .footer-grid { grid-template-columns: 1fr; }
    .pricing-grid { grid-template-columns: repeat(2, 1fr); }
    .experience-grid { grid-template-columns: 1fr; }
    .experience-photo { min-height: 430px; }
    .booking-layout { grid-template-columns: 1fr; }
    .section { padding: 75px 0; }
    .section-heading, .cta-card { align-items: flex-start; flex-direction: column; }
}

@media (min-width: 851px) and (max-width: 1100px) {
    .info-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 580px) {
    .container { width: min(100% - 26px, 1180px); }
    .brand span:last-child { font-size: .9rem; }
    .brand-logo { width: 46px; height: 46px; }
    .hero { min-height: 650px; }
    .hero-actions { flex-direction: column; }
    .hero-actions .button { width: 100%; }
    .form-grid { grid-template-columns: 1fr; }
    .pricing-grid { grid-template-columns: 1fr; }
    .field-full { grid-column: auto; }
    .form-submit { align-items: stretch; flex-direction: column; }
    .form-submit .button { width: 100%; }
    .card-footer { align-items: flex-start; flex-direction: column; }
    .cta-card { padding: 30px 24px; }
    .footer-bottom { flex-direction: column; }
    .success-dialog-content { padding: 28px 22px; }
}