/* ============================================
   CERABLOCK — design system
   Deep basin navy + clarity mint, engineered/technical type,
   grounded in the real 15-day capsule cycle.
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=IBM+Plex+Sans:wght@400;500;600&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root{
  --navy-deep:   #14202F;
  --navy-panel:  #1E3049;
  --navy-panel-2:#263A56;
  --mint:        #A9D6C4;
  --mint-bright: #C3E9D9;
  --porcelain:   #F3F0E8;
  --kraft:       #C9A66B;
  --steel:       #8993A0;
  --steel-dim:   #5C6675;
  --line:        rgba(243,240,232,0.12);
  --shadow:      0 4px 24px rgba(0,0,0,0.25);

  --display: 'Space Grotesk', sans-serif;
  --body: 'IBM Plex Sans', sans-serif;
  --mono: 'IBM Plex Mono', monospace;

  --max: 1180px;
}

:root[data-theme="light"]{
  --navy-deep:   #F3F0E8;
  --navy-panel:  #FFFFFF;
  --navy-panel-2:#EAE4D6;
  --mint:        #2F7A61;
  --mint-bright: #256349;
  --porcelain:   #17202B;
  --kraft:       #A9803F;
  --steel:       #5C6675;
  --steel-dim:   #8993A0;
  --line:        rgba(23,32,43,0.12);
  --shadow:      0 4px 24px rgba(23,32,43,0.08);
}

body{ transition:background-color .25s ease, color .25s ease; }

*{ box-sizing:border-box; margin:0; padding:0; }
html{ scroll-behavior:smooth; }
body{
  background:var(--navy-deep);
  color:var(--porcelain);
  font-family:var(--body);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ list-style:none; }

@media (prefers-reduced-motion: reduce){
  *{ animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important; scroll-behavior:auto !important; }
}

.wrap{ max-width:var(--max); margin:0 auto; padding:0 28px; }

/* ---------- type ---------- */
h1,h2,h3,h4{ font-family:var(--display); font-weight:600; letter-spacing:-0.01em; }
.eyebrow{
  font-family:var(--mono); font-size:12px; letter-spacing:0.14em; text-transform:uppercase;
  color:var(--mint); display:flex; align-items:center; gap:10px; margin-bottom:14px;
}
.eyebrow::before{ content:""; width:20px; height:1px; background:var(--mint); display:inline-block; }
.mono{ font-family:var(--mono); }

/* ---------- nav ---------- */
.site-nav{
  position:sticky; top:0; z-index:50;
  background:rgba(20,32,47,0.88);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.site-nav .wrap{ display:flex; align-items:center; justify-content:space-between; height:76px; }
.logo{ font-family:var(--display); font-weight:700; font-size:20px; letter-spacing:-0.01em; display:flex; align-items:center; gap:2px; }
.logo .b{ color:var(--mint); }
.nav-links{ display:flex; gap:34px; align-items:center; }
.nav-links a{ font-size:14px; color:var(--steel); transition:color .2s; position:relative; }
.nav-links a:hover, .nav-links a.active{ color:var(--porcelain); }
.nav-links a.active::after{ content:""; position:absolute; left:0; right:0; bottom:-26px; height:2px; background:var(--mint); }
.nav-cta{
  font-family:var(--mono); font-size:13px; letter-spacing:0.04em;
  background:var(--mint); color:var(--navy-deep); padding:10px 18px; border-radius:3px;
  font-weight:500; transition:background .2s, transform .2s;
}
.nav-cta:hover{ background:var(--mint-bright); transform:translateY(-1px); }
.cart-count{ font-family:var(--mono); font-size:12px; color:var(--steel); margin-left:6px; }
.nav-toggle{ display:none; background:none; border:none; color:var(--porcelain); font-size:24px; cursor:pointer; }
.nav-actions{ display:flex; align-items:center; gap:14px; }

.theme-toggle{
  width:38px; height:38px; border-radius:50%; border:1px solid var(--line); background:var(--navy-panel);
  color:var(--porcelain); cursor:pointer; display:flex; align-items:center; justify-content:center;
  font-size:16px; transition:border-color .2s, transform .2s; flex-shrink:0;
}
.theme-toggle:hover{ border-color:var(--mint); transform:rotate(15deg); }

.nav-right{ display:flex; align-items:center; gap:14px; }

@media (max-width: 860px){
  .nav-links{
    position:fixed; top:76px; left:0; right:0; bottom:0;
    background:var(--navy-deep); flex-direction:column; justify-content:flex-start;
    padding:36px 28px; gap:24px; transform:translateX(100%); transition:transform .3s ease;
  }
  .nav-links.open{ transform:translateX(0); }
  .nav-links a::after{ display:none; }
  .nav-toggle{ display:block; }
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex; align-items:center; gap:10px;
  font-family:var(--mono); font-size:14px; letter-spacing:0.03em;
  padding:14px 26px; border-radius:3px; cursor:pointer; border:1px solid transparent;
  transition:all .2s ease;
}
.btn-primary{ background:var(--mint); color:var(--navy-deep); font-weight:500; }
.btn-primary:hover{ background:var(--mint-bright); transform:translateY(-1px); }
.btn-ghost{ border-color:var(--line); color:var(--porcelain); }
.btn-ghost:hover{ border-color:var(--mint); color:var(--mint); }
.btn-arrow{ transition:transform .2s; }
.btn:hover .btn-arrow{ transform:translateX(3px); }

/* ---------- footer ---------- */
.site-footer{ border-top:1px solid var(--line); margin-top:140px; padding:64px 0 32px; }
.footer-grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:40px; margin-bottom:56px; }
.footer-grid h5{ font-family:var(--mono); font-size:12px; letter-spacing:0.1em; text-transform:uppercase; color:var(--steel); margin-bottom:16px; }
.footer-grid a{ display:block; font-size:14px; color:var(--porcelain); opacity:0.85; margin-bottom:10px; }
.footer-grid a:hover{ opacity:1; color:var(--mint); }
.footer-tagline{ color:var(--steel); font-size:14px; max-width:280px; margin-top:14px; }
.footer-bottom{ display:flex; justify-content:space-between; align-items:center; padding-top:28px; border-top:1px solid var(--line); font-size:12px; color:var(--steel-dim); font-family:var(--mono); }
@media (max-width:760px){ .footer-grid{ grid-template-columns:1fr 1fr; } .footer-bottom{ flex-direction:column; gap:10px; text-align:center; } }

/* ---------- generic section rhythm ---------- */
section{ padding:110px 0; }
.section-head{ max-width:640px; margin-bottom:56px; }
.section-head h2{ font-size:clamp(28px,4vw,42px); line-height:1.15; }
.section-head p{ color:var(--steel); margin-top:14px; font-size:16px; }

/* ---------- page hero (inner pages) ---------- */
.page-hero{ padding:72px 0 60px; border-bottom:1px solid var(--line); }
.page-hero h1{ font-size:clamp(34px,5vw,56px); line-height:1.08; }
.page-hero p{ color:var(--steel); max-width:560px; margin-top:16px; font-size:17px; }

/* ---------- cards ---------- */
.card{ background:var(--navy-panel); border:1px solid var(--line); border-radius:6px; padding:32px; }

/* ---------- utility ---------- */
.grid-3{ display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
.grid-2{ display:grid; grid-template-columns:1fr 1fr; gap:48px; }
@media (max-width:860px){ .grid-3{ grid-template-columns:1fr; } .grid-2{ grid-template-columns:1fr; } }

.reveal{ opacity:0; transform:translateY(18px); transition:opacity .6s ease, transform .6s ease; }
.reveal.in{ opacity:1; transform:none; }

/* ---------- plan toggle (one-time vs subscribe) ---------- */
.plan-toggle{ display:flex; gap:8px; background:var(--navy-deep); border:1px solid var(--line); border-radius:6px; padding:4px; margin-bottom:16px; }
.plan-option{ flex:1; text-align:center; padding:10px 8px; border-radius:4px; cursor:pointer; font-size:13px; transition:background .2s, color .2s; }
.plan-option.active{ background:var(--mint); color:var(--navy-deep); font-weight:600; }
.plan-option .save-badge{ display:block; font-family:var(--mono); font-size:10.5px; margin-top:2px; }
.plan-option.active .save-badge{ color:var(--navy-deep); opacity:0.75; }
.plan-option:not(.active) .save-badge{ color:var(--mint); }

.sub-callout{
  display:flex; align-items:center; gap:10px; background:rgba(169,214,196,0.1); border:1px dashed var(--mint);
  border-radius:6px; padding:10px 14px; font-size:12.5px; color:var(--mint); margin-bottom:16px;
}

/* ---------- promo code ---------- */
.promo-row{ display:flex; gap:10px; margin:20px 0; }
.promo-row input{
  flex:1; background:var(--navy-panel); border:1px solid var(--line); border-radius:4px; padding:12px 14px;
  color:var(--porcelain); font-family:var(--mono); font-size:13px; text-transform:uppercase;
}
.promo-row input:focus{ outline:none; border-color:var(--mint); }
.promo-msg{ font-size:12.5px; margin-top:-8px; margin-bottom:16px; }
.promo-msg.success{ color:var(--mint); }
.promo-msg.error{ color:#E08A6B; }

/* ---------- video section ---------- */
.video-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
.video-card{ border-radius:8px; overflow:hidden; border:1px solid var(--line); background:var(--navy-panel); }
.video-card video{ width:100%; display:block; aspect-ratio:9/16; object-fit:cover; background:#000; }
.video-card-label{ padding:14px 16px; font-size:13.5px; }
@media (max-width:860px){ .video-grid{ grid-template-columns:1fr; } .video-card video{ aspect-ratio:9/16; max-height:520px; margin:0 auto; } }