/* ====== MarcoPolo static site: marine theme ====== */
:root{
  --bg: #f8fbff;
  --card: #ffffff;
  --text: #0f172a; /* slate-900-ish */
  --muted: #475569; /* slate-600-ish */
  --primary: #0ea5a7; /* teal */
  --primary-2: #0284c7; /* sky */
  --ring: rgba(2,132,199,0.25);
  --border: #e5eef7;
  --shadow: 0 8px 30px rgba(2, 132, 199, 0.08);
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Helvetica Neue, Arial, "Apple Color Emoji", "Segoe UI Emoji"; color:var(--text); background:linear-gradient(180deg,#f7fbff, #f1f9ff 30%, #eef7ff 60%, #f8fbff 100%)}

.container{max-width:1080px;margin:0 auto;padding:0 16px}
.header{display:flex;align-items:center;justify-content:space-between;padding:18px 0}
.brand{display:flex;align-items:center;gap:12px}
.brand__logo{height:52px;width:52px;object-fit:contain}
.brand__title{font-weight:700;font-size:1.25rem}
.brand__subtitle{font-size:.8rem;color:var(--muted)}

.nav{display:flex;align-items:center;gap:18px}
.nav a{color:var(--muted);text-decoration:none;font-size:.95rem}
.nav a:hover{color:var(--primary-2)}
.lang{display:flex;gap:6px;margin-left:6px}
.lang__btn{border:1px solid var(--border);background:#fff;border-radius:8px;padding:6px 10px;font-size:.85rem;color:var(--muted);cursor:pointer}
.lang__btn[aria-pressed="true"]{color:#fff;background:linear-gradient(90deg,var(--primary),var(--primary-2));border-color:transparent;box-shadow:0 0 0 3px var(--ring)}

.hero{padding:40px 0 24px}
.hero__title{font-size:2rem;line-height:1.2;margin:0 0 10px}
.hero__lead{color:#334155;max-width:70ch;margin:0 0 16px}
.cta{display:flex;gap:12px;flex-wrap:wrap}

.btn{display:inline-flex;align-items:center;gap:8px;border-radius:12px;padding:10px 16px;text-decoration:none}
.btn-primary{color:#fff;background:linear-gradient(90deg,var(--primary),var(--primary-2));box-shadow:var(--shadow)}
.btn-primary:hover{transform:translateY(-1px)}

.section{padding:28px 0}
.section__title{font-size:1.4rem;margin:0 0 14px}
.section__note{margin-top:10px;color:#334155}

.features{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px}
.feature{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:14px;box-shadow:var(--shadow)}
.feature__title{margin:0 0 6px;font-size:1.05rem}
.feature__text{margin:0;color:#334155}

.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:14px}
.card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:14px;box-shadow:var(--shadow)}
.card__label{font-size:.78rem;color:var(--muted);margin-bottom:6px}
.card__code{display:inline-block;background:#f7fbff;border:1px dashed #cfe7fb;border-radius:8px;padding:6px 8px;font-family:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;font-size:.9rem;word-break:break-all}

.notice{margin-top:14px;background:#eef7ff;border:1px solid #d9ecff;border-radius:12px;padding:12px;color:#0b3a52}

.contacts{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:12px}
.contact{display:flex;align-items:center;gap:10px;background:var(--card);border:1px solid var(--border);border-radius:14px;padding:12px;text-decoration:none;color:var(--text);box-shadow:var(--shadow)}
.contact:hover{outline:3px solid var(--ring)}
.contact__label{font-weight:600}
.contact__value{color:#1f2937}
.icon{display:inline-flex;align-items:center;justify-content:center;height:28px;width:28px;border-radius:50%;background:linear-gradient(135deg,rgba(14,165,167,0.15),rgba(2,132,199,0.15));color:#055160}
.icon svg{height:18px;width:18px}

.footer{display:flex;align-items:center;justify-content:space-between;padding:22px 0 40px;color:var(--muted);font-size:.9rem}
.footer__id code{font-family:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace}

/* Waves */
.wave{position:relative}
.wave svg{display:block;width:100%;height:120px}
.wave path{fill:url(#grad);} /* fallback will be set with filter below */

/* Create gradient via filter-fill approach for broad compatibility */
.wave-top svg path, .wave-bottom svg path{fill:#e0f2ff}
.wave-top{position:absolute;top:0;left:0;right:0;transform:translateY(-100%);}
.wave-bottom{position:fixed;bottom:0;left:0;right:0;pointer-events:none;opacity:.8}

@media (max-width:640px){
  .hero__title{font-size:1.6rem}
}