/* ============================================================
   UPPERBOAT — Shared brand stylesheet
   Built on the Upperboat (Webflow-inspired) design system,
   adapted to the gold anchor-crest identity (#f6be1e) and a
   warm, encouraging mentor voice. Nautical accents throughout.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Inconsolata:wght@400;500;600&display=swap');

:root {
  /* fonts */
  --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'Inconsolata', ui-monospace, SFMono-Regular, Menlo, monospace;

  /* ink / canvas */
  --primary: #0f0e0d;     /* logo near-black — conversion + ink */
  --on-primary:#ffffff;
  --ink: #0f0e0d;
  --ink-strong:#000000;
  --body: #3a3937;
  --body-mid:#5e5c58;
  --mute: #8a8884;
  --mute-soft:#b0aea9;
  --hairline:#e3e0d9;
  --hairline-strong:#cfccc4;
  --canvas:#ffffff;
  --paper:#faf8f3;        /* warm off-white band */
  --night:#0f0e0d;        /* dark band */
  --night-2:#1a1916;      /* dark band raised */

  /* brand gold (guiding-light) */
  --gold:#f6be1e;
  --gold-soft:#fcd66a;
  --gold-deep:#d99e06;
  --gold-ink:#7a5a02;
  --gold-wash:#fdf4d8;

  /* sea / dawn accents */
  --sea-deep:#0e2438;
  --sea:#15466b;
  --sea-soft:#3b7ea8;
  --dawn-1:#fbe3b3;
  --dawn-2:#f6be1e;
  --dawn-3:#e9885a;

  /* spacing */
  --space-xxs:2px; --space-xs:4px; --space-sm:8px; --space-md:12px;
  --space-lg:16px; --space-xl:20px; --space-2xl:24px; --space-3xl:32px;
  --space-4xl:48px; --space-5xl:64px; --space-6xl:96px; --space-7xl:128px;

  /* radius */
  --radius-xs:2px; --radius-sm:4px; --radius-md:8px; --radius-lg:14px; --radius-full:9999px;

  /* shadows (layered, brand signature) */
  --shadow-1:0 1px 0 rgba(15,14,13,0.04);
  --shadow-2:0 84px 24px rgba(0,0,0,0),0 54px 22px rgba(0,0,0,.01),0 30px 18px rgba(0,0,0,.04),0 13px 13px rgba(0,0,0,.08),0 3px 7px rgba(0,0,0,.09);
  --shadow-3:0 84px 24px rgba(0,0,0,0),0 54px 22px rgba(0,0,0,.02),0 30px 18px rgba(0,0,0,.05),0 13px 13px rgba(0,0,0,.10),0 3px 7px rgba(0,0,0,.12);
  --shadow-4:0 24px 24px rgba(0,0,0,.26),0 6px 13px rgba(0,0,0,.29);
  --shadow-gold:0 18px 40px -12px rgba(217,158,6,.45);

  /* type scale */
  --display-xxl:600 80px/1.04 var(--font-sans);
  --display-xl:600 56px/1.04 var(--font-sans);
  --display-lg:600 44.8px/1.04 var(--font-sans);
  --display-md:600 32px/1.2 var(--font-sans);
  --display-sm:600 24px/1.3 var(--font-sans);
  --display-xs:600 20px/1.4 var(--font-sans);
  --body-lg:400 22px/1.6 var(--font-sans);
  --body-md:400 16px/1.6 var(--font-sans);
  --body-sm:400 14px/1.6 var(--font-sans);
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0; font:var(--body-md); letter-spacing:-.16px; color:var(--body);
  background:var(--canvas); -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;}
::selection{background:var(--gold);color:var(--ink);}

/* ---------- layout ---------- */
.wrap{max-width:1200px;margin:0 auto;padding:0 32px;}
.wrap-narrow{max-width:920px;margin:0 auto;padding:0 32px;}
.section{padding:96px 0;}
.section-sm{padding:64px 0;}
.band-paper{background:var(--paper);}
.band-night{background:var(--night);color:#d6d3cc;}
.band-night h1,.band-night h2,.band-night h3,.band-night h4{color:#fff;}

/* ---------- type utilities ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font:600 14px/1 var(--font-sans);letter-spacing:1.6px;text-transform:uppercase;
  color:var(--gold-deep);margin:0 0 20px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--gold);border-radius:2px;}
.eyebrow.center{justify-content:center;}
.band-night .eyebrow{color:var(--gold);}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.02em;}
h1{font:var(--display-xxl);}
h2{font:var(--display-lg);}
h3{font:var(--display-md);}
h4{font:var(--display-sm);}
.lead{font:var(--body-lg);letter-spacing:-.01em;color:var(--body-mid);max-width:60ch;}
.band-night .lead{color:#b9b6af;}
p{margin:0 0 1em;}
.mono{font:500 13px/1.5 var(--font-mono);letter-spacing:.02em;}
a{color:var(--gold-deep);text-decoration:none;}
a:hover{text-decoration:underline;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:9px;cursor:pointer;border:none;
  font:600 15px/1 var(--font-sans);letter-spacing:-.01em;
  padding:15px 22px;border-radius:var(--radius-sm);transition:.18s ease;white-space:nowrap;
  text-decoration:none;
}
.btn:hover{text-decoration:none;}
.btn svg{width:17px;height:17px;}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:#000;transform:translateY(-1px);}
.btn-gold{background:var(--gold);color:var(--ink);box-shadow:var(--shadow-gold);}
.btn-gold:hover{background:var(--gold-soft);transform:translateY(-1px);}
.btn-ghost{background:transparent;color:var(--ink);border:1px solid var(--hairline-strong);}
.btn-ghost:hover{border-color:var(--ink);}
.band-night .btn-ghost,.cta-band .btn-ghost{color:#fff;border-color:rgba(255,255,255,.28);}
.band-night .btn-ghost:hover,.cta-band .btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.06);}
.btn-lg{padding:18px 28px;font-size:16px;}
.btn .arrow{transition:transform .18s ease;}
.btn:hover .arrow{transform:translateX(3px);}

/* ---------- nav ---------- */
.nav{
  position:sticky;top:0;z-index:60;background:rgba(255,255,255,.92);
  backdrop-filter:saturate(140%) blur(8px);border-bottom:1px solid var(--hairline);
}
.nav-inner{display:flex;align-items:center;gap:32px;height:80px;}
.nav-logo{display:flex;align-items:center;gap:11px;margin-right:auto;}
.nav-logo img{height:48px;width:auto;}
.nav-logo .wordmark{font:600 23px/1 var(--font-sans);letter-spacing:.03em;color:var(--ink);}
.nav-links{display:flex;align-items:center;gap:30px;list-style:none;margin:0;padding:0;}
.nav-links a{font:500 15px/1 var(--font-sans);color:var(--body-mid);letter-spacing:-.01em;}
.nav-links a:hover{color:var(--ink);text-decoration:none;}
.nav-links a.active{color:var(--ink);}
.nav-right{display:flex;align-items:center;gap:14px;}
.nav-right .lang-toggle{order:2;}
.lang-toggle{
  display:inline-flex;border:1px solid var(--hairline-strong);border-radius:var(--radius-sm);
  overflow:hidden;font:600 13px/1 var(--font-sans);
}
.lang-toggle button{
  border:none;background:transparent;padding:8px 11px;cursor:pointer;color:var(--mute);
  font:inherit;transition:.15s;
}
.lang-toggle button.active{background:var(--ink);color:#fff;}
.nav-burger{display:none;background:none;border:none;cursor:pointer;padding:8px;}

/* ---------- CTA band (the Book Your Session bottom block) ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--night);color:#fff;padding:88px 0;}
.cta-band h2{color:#fff;max-width:18ch;}
.cta-band .lead{color:rgba(255,255,255,.72);}
.cta-anchor-bg{
  position:absolute;right:-40px;bottom:-60px;width:360px;opacity:.07;pointer-events:none;
}

/* ---------- footer ---------- */
.footer{background:#0a0a09;color:#8d8a83;padding:64px 0 36px;}
.footer a{color:#b8b5ad;}
.footer a:hover{color:#fff;text-decoration:none;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
.footer h5{font:600 13px/1 var(--font-sans);letter-spacing:1.2px;text-transform:uppercase;color:#fff;margin:0 0 18px;}
.footer ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:11px;font-size:14px;}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;gap:20px;
  margin-top:48px;padding-top:24px;border-top:1px solid rgba(255,255,255,.1);font-size:13px;color:#6f6c66;}

/* ---------- cards ---------- */
.card{background:#fff;border:1px solid var(--hairline);border-radius:var(--radius-md);padding:32px;transition:.2s ease;}
.card-hover:hover{border-color:var(--hairline-strong);box-shadow:var(--shadow-2);transform:translateY(-3px);}
.card-feature{box-shadow:var(--shadow-2);border-color:transparent;}

/* ---------- badge / chip ---------- */
.chip{
  display:inline-flex;align-items:center;gap:7px;padding:6px 12px;border-radius:var(--radius-sm);
  font:600 13px/1 var(--font-sans);letter-spacing:.01em;background:var(--gold-wash);color:var(--gold-ink);
}
.chip-dot{width:7px;height:7px;border-radius:50%;background:var(--gold-deep);}

/* ---------- reveal-on-scroll ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.7,.2,1);}
.reveal.in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none;}}

/* ---------- lang visibility (zht / zhs / en) ---------- */
html[data-lang="en"] .zht-only,html[data-lang="en"] .zhs-only,html[data-lang="en"] .zh-only{display:none!important;}
html[data-lang="zht"] .en-only,html[data-lang="zht"] .zhs-only{display:none!important;}
html[data-lang="zhs"] .en-only,html[data-lang="zhs"] .zht-only{display:none!important;}
html[data-lang="en"] .page-hero h1{max-width:22ch;}
html[data-lang="en"] h2{max-width:none;}

/* ---------- sub-page hero ---------- */
.page-hero{position:relative;overflow:hidden;background:var(--night);color:#fff;padding:118px 0 88px;}
.page-hero::after{content:"";position:absolute;left:0;right:0;bottom:0;height:140px;
  background:linear-gradient(180deg,transparent,rgba(246,190,30,.06));pointer-events:none;}
.page-hero .eyebrow{color:var(--gold);}
.page-hero h1{color:#fff;max-width:16ch;}
.page-hero .lead{color:rgba(255,255,255,.78);margin-top:22px;}
.page-hero-mark{position:absolute;right:-30px;top:50%;transform:translateY(-50%);width:330px;opacity:.06;pointer-events:none;}
.page-hero-wave{position:absolute;left:0;right:0;bottom:0;height:60px;opacity:.5;
  background:repeating-linear-gradient(90deg,transparent 0 18px,rgba(246,190,30,.25) 18px 19px);
  -webkit-mask:radial-gradient(80% 100% at 50% 100%,#000,transparent);mask:radial-gradient(80% 100% at 50% 100%,#000,transparent);}

/* ---------- phased timeline ---------- */
.phase{display:grid;grid-template-columns:220px 1fr;gap:40px;padding:44px 0;border-top:1px solid var(--hairline);}
.phase:first-of-type{border-top:none;}
.phase-tag{position:sticky;top:96px;align-self:start;}
.phase-tag .pn{font:600 13px/1 var(--font-mono);letter-spacing:2px;color:var(--gold-deep);}
.phase-tag h3{font-size:26px;margin:12px 0 8px;}
.phase-tag p{font-size:14px;color:var(--mute);margin:0;}
.phase-steps{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.step-card{padding:22px;border:1px solid var(--hairline);border-radius:var(--radius-md);background:#fff;transition:.2s;}
.step-card:hover{border-color:var(--gold);box-shadow:var(--shadow-2);}
.step-card .sc-top{display:flex;align-items:center;gap:10px;margin-bottom:10px;}
.step-card .sc-ic{width:34px;height:34px;border-radius:var(--radius-sm);background:var(--gold-wash);color:var(--gold-deep);display:grid;place-items:center;flex:none;}
.step-card .sc-ic svg{width:18px;height:18px;}
.step-card h5{font:600 16px/1.3 var(--font-sans);color:var(--ink);margin:0;}
.step-card p{font-size:14px;color:var(--body-mid);margin:0;line-height:1.55;}

/* ---------- feature rows / value props ---------- */
.feat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:48px;}
.feat{display:flex;gap:18px;padding:28px;border:1px solid var(--hairline);border-radius:var(--radius-md);background:#fff;}
.feat-ic{width:48px;height:48px;flex:none;border-radius:var(--radius-sm);background:var(--ink);color:var(--gold);display:grid;place-items:center;}
.feat-ic svg{width:23px;height:23px;}
.feat h4{font-size:19px;margin-bottom:8px;}
.feat p{font-size:15px;color:var(--body-mid);margin:0;}

/* ---------- responsive ---------- */
@media (max-width:900px){
  h1{font-size:54px;} h2{font-size:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .phase{grid-template-columns:1fr;gap:20px;}.phase-tag{position:static;}
  .phase-steps{grid-template-columns:1fr;}.feat-grid{grid-template-columns:1fr;}
  .nav-links{position:fixed;inset:80px 0 auto 0;background:#fff;flex-direction:column;
    align-items:flex-start;gap:0;padding:8px 0;border-bottom:1px solid var(--hairline);
    box-shadow:var(--shadow-2);display:none;}
  .nav-links.open{display:flex;}
  .nav-links li{width:100%;}
  .nav-links a{display:block;padding:14px 32px;width:100%;}
  .nav-burger{display:inline-flex;}
  .section{padding:72px 0;}
}
@media (max-width:560px){
  h1{font-size:42px;} h2{font-size:30px;} .wrap,.wrap-narrow{padding:0 20px;}
  .lead{font-size:18px;} .footer-grid{grid-template-columns:1fr 1fr;}
}