/* ============================================================
   STAMP STUDIO PRO — Design System
   Palette: warm paper + ink-navy primary, seal-red secondary —
   grounded in the subject (stamp ink), not a generic accent.
   ============================================================ */

:root{
  --paper:        #F2EDE1;
  --paper-deep:   #E7DFC9;
  --surface:      #FFFFFF;
  --surface-glass: rgba(255,255,255,0.62);
  --ink-black:    #211C16;
  --ink-soft:     #665C4C;
  --ink-faint:    #9C917C;
  --line:         #DED2B8;
  --line-soft:    #ECE4CE;

  --navy:         #1B3550;
  --navy-deep:    #12283C;
  --navy-glow:    #4E7396;
  --seal:         #9E3B34;
  --seal-deep:    #7A2C27;
  --seal-glow:    #C96257;

  --font-display: 'Petrona', 'Iowan Old Style', serif;
  --font-body:    'Work Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono:    'IBM Plex Mono', ui-monospace, monospace;

  --radius-lg: 22px;
  --radius-md: 14px;
  --radius-sm: 8px;

  --shadow-soft: 0 1px 2px rgba(33,28,22,0.05), 0 12px 32px -12px rgba(33,28,22,0.18);
  --shadow-lift: 0 2px 4px rgba(33,28,22,0.08), 0 24px 48px -16px rgba(33,28,22,0.28);
}

[data-theme="dark"]{
  --paper:        #171410;
  --paper-deep:   #100E0A;
  --surface:      #211C16;
  --surface-glass: rgba(33,28,22,0.72);
  --ink-black:    #F1E9D8;
  --ink-soft:     #C2B69C;
  --ink-faint:    #766C58;
  --line:         #3A3226;
  --line-soft:    #2A2419;
  --shadow-soft: 0 1px 2px rgba(0,0,0,0.3), 0 12px 32px -12px rgba(0,0,0,0.55);
  --shadow-lift: 0 2px 4px rgba(0,0,0,0.4), 0 24px 48px -16px rgba(0,0,0,0.6);
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0; background:var(--paper); color:var(--ink-black); font-family:var(--font-body);
  -webkit-font-smoothing:antialiased; transition:background .3s ease, color .3s ease;
}
a{ color:inherit; text-decoration:none; }
img{ max-width:100%; display:block; }
::selection{ background:var(--seal-glow); color:#fff; }
@media (prefers-reduced-motion: reduce){ *{ animation-duration:.001ms !important; transition-duration:.001ms !important; } }

.container{ max-width:1200px; margin:0 auto; padding:0 32px; }

.site-nav{
  position:sticky; top:0; z-index:50; display:flex; align-items:center; justify-content:space-between;
  padding:18px 32px; background:var(--surface-glass); backdrop-filter:blur(14px) saturate(1.4);
  border-bottom:1px solid var(--line-soft);
}
.brand{ display:flex; align-items:center; gap:10px; font-family:var(--font-display); font-weight:600; font-size:1.15rem; }
.brand-mark{
  width:30px; height:30px; border-radius:50%; border:2px solid var(--seal); position:relative; flex-shrink:0;
}
.brand-mark::after{ content:""; position:absolute; inset:6px; border:1.2px solid var(--seal); border-radius:50%; }
.nav-links{ display:flex; align-items:center; gap:28px; }
.nav-links a{ font-size:.92rem; color:var(--ink-soft); transition:color .2s; }
.nav-links a:hover{ color:var(--ink-black); }

.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px; font-weight:600; font-size:.92rem;
  padding:12px 22px; border-radius:999px; border:1px solid transparent; cursor:pointer;
  transition:transform .15s ease, box-shadow .15s ease, background .2s ease; white-space:nowrap;
}
.btn:active{ transform:translateY(1px) scale(.99); }
.btn-primary{ background:linear-gradient(135deg, var(--seal) 0%, var(--seal-deep) 100%); color:#fff; box-shadow:var(--shadow-soft); }
.btn-primary:hover{ box-shadow:var(--shadow-lift); transform:translateY(-1px); }
.btn-ghost{ background:transparent; color:var(--ink-black); border-color:var(--line); }
.btn-ghost:hover{ border-color:var(--navy); color:var(--navy); }
.btn-sm{ padding:9px 16px; font-size:.82rem; }
.theme-toggle{ width:38px; height:38px; border-radius:50%; border:1px solid var(--line); background:var(--surface); display:flex; align-items:center; justify-content:center; cursor:pointer; color:var(--ink-soft); }

/* ---------- Hero ---------- */
.hero{ padding:88px 32px 60px; display:grid; grid-template-columns:1.05fr .95fr; gap:56px; align-items:center; max-width:1200px; margin:0 auto; }
.eyebrow{ font-family:var(--font-mono); font-size:.72rem; letter-spacing:.14em; text-transform:uppercase; color:var(--seal-deep); display:flex; align-items:center; gap:10px; margin-bottom:18px; }
.eyebrow::before{ content:""; width:22px; height:1px; background:var(--seal-deep); }
.hero h1{ font-family:var(--font-display); font-weight:600; font-size:clamp(2.4rem,4.6vw,3.6rem); line-height:1.08; letter-spacing:-.005em; margin:0 0 22px; }
.hero h1 em{ font-style:italic; color:var(--seal); }
.hero p.lede{ font-size:1.08rem; line-height:1.6; color:var(--ink-soft); max-width:46ch; margin:0 0 32px; }
.hero-ctas{ display:flex; gap:14px; margin-bottom:36px; flex-wrap:wrap; }
.hero-stats{ display:flex; gap:34px; }
.hero-stats div{ display:flex; flex-direction:column; }
.hero-stats b{ font-family:var(--font-display); font-size:1.5rem; }
.hero-stats span{ font-size:.78rem; color:var(--ink-faint); }

/* Signature element: a stamp thumping down onto paper, ink impression appears */
.stamp-stage{ position:relative; height:420px; display:flex; align-items:center; justify-content:center; }
.stamp-paper{
  width:300px; height:220px; background:#FBF8F0; border-radius:4px; box-shadow:var(--shadow-lift);
  position:relative; overflow:hidden;
}
.stamp-paper::before{
  content:""; position:absolute; inset:0; background-image:repeating-linear-gradient(#00000006 0 1px, transparent 1px 26px); opacity:.5;
}
.impression{
  position:absolute; left:50%; top:50%; width:150px; height:150px; transform:translate(-50%,-50%) scale(0);
  border-radius:50%; border:5px solid var(--seal); opacity:0;
  display:flex; align-items:center; justify-content:center; flex-direction:column;
  filter:url(#inkTexture);
  animation: thump 3.2s ease-in-out infinite;
}
.impression .ring2{ position:absolute; inset:10px; border:1.5px solid var(--seal); border-radius:50%; }
.impression b{ font-family:var(--font-display); font-size:.82rem; letter-spacing:.06em; color:var(--seal); text-transform:uppercase; z-index:2; }
.impression span{ font-family:var(--font-mono); font-size:.6rem; color:var(--seal); letter-spacing:.1em; z-index:2; }
.stamper{
  position:absolute; left:50%; top:50%; width:96px; height:150px; transform:translate(-50%,-120px);
  animation: stamp-down 3.2s ease-in-out infinite;
}
.stamper .handle{ width:26px; height:80px; background:linear-gradient(180deg,#3a3128,#221c16); margin:0 auto; border-radius:6px 6px 0 0; }
.stamper .base{ width:96px; height:34px; background:linear-gradient(180deg,#5a4c3a,#3a3128); border-radius:8px; margin-top:-2px; }
@keyframes stamp-down{
  0%,8%{ transform:translate(-50%,-130px) rotate(0deg); }
  22%{ transform:translate(-50%,-6px) rotate(-1deg); }
  30%{ transform:translate(-50%,-4px) rotate(1deg); }
  46%{ transform:translate(-50%,-130px) rotate(0deg); }
  100%{ transform:translate(-50%,-130px) rotate(0deg); }
}
@keyframes thump{
  0%,20%{ opacity:0; transform:translate(-50%,-50%) scale(.8); }
  28%{ opacity:.85; transform:translate(-50%,-50%) scale(1.04); }
  32%{ opacity:.8; transform:translate(-50%,-50%) scale(1); }
  92%{ opacity:.8; transform:translate(-50%,-50%) scale(1); }
  100%{ opacity:0; transform:translate(-50%,-50%) scale(1); }
}

section{ padding:76px 0; }
.section-head{ max-width:640px; margin:0 auto 48px; text-align:center; }
.section-head .eyebrow{ justify-content:center; }
.section-head h2{ font-family:var(--font-display); font-size:clamp(1.8rem,3vw,2.4rem); margin:0 0 12px; }
.section-head p{ color:var(--ink-soft); line-height:1.6; margin:0; }

.feature-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:22px; }
.feature-card{ background:var(--surface); border:1px solid var(--line-soft); border-radius:var(--radius-md); padding:28px 26px; box-shadow:var(--shadow-soft); transition:transform .2s ease, box-shadow .2s ease; }
.feature-card:hover{ transform:translateY(-3px); box-shadow:var(--shadow-lift); }
.feature-icon{ width:42px; height:42px; border-radius:11px; margin-bottom:16px; background:linear-gradient(135deg, var(--navy-glow), var(--navy)); display:flex; align-items:center; justify-content:center; color:#fff; }
.feature-card h3{ font-size:1.02rem; margin:0 0 8px; font-family:var(--font-display); font-weight:600; }
.feature-card p{ font-size:.9rem; color:var(--ink-soft); line-height:1.55; margin:0; }

.why-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:18px; }
.why-card{ text-align:center; padding:22px 16px; }
.why-card .num{ font-family:var(--font-mono); font-size:.7rem; color:var(--seal); letter-spacing:.1em; margin-bottom:10px; }
.why-card h4{ font-family:var(--font-display); font-size:1rem; margin:0 0 8px; }
.why-card p{ font-size:.84rem; color:var(--ink-soft); line-height:1.5; margin:0; }

.template-strip{ display:grid; grid-template-columns:repeat(5,1fr); gap:16px; }
.tpl-card{ aspect-ratio:1/1; border-radius:12px; cursor:pointer; transition:transform .2s ease; box-shadow:var(--shadow-soft); display:flex; align-items:center; justify-content:center; background:var(--surface); border:1px solid var(--line-soft); }
.tpl-card:hover{ transform:translateY(-4px) scale(1.03); }
.tpl-more{ border-radius:12px; border:1.5px dashed var(--line); display:flex; align-items:center; justify-content:center; color:var(--ink-faint); font-size:.8rem; text-align:center; padding:16px; }

.cta-band{ margin:0 32px; border-radius:28px; padding:64px 48px; text-align:center; background:linear-gradient(135deg, var(--navy-deep), var(--navy)); color:#E9EEF3; }
.cta-band h2{ font-family:var(--font-display); font-size:clamp(1.8rem,3.4vw,2.6rem); margin:0 0 14px; }
.cta-band p{ color:#AEC0CF; margin:0 0 30px; }
.cta-band .btn-primary{ background:linear-gradient(135deg,var(--seal-glow),var(--seal)); }

footer.site-footer{ padding:56px 32px 32px; border-top:1px solid var(--line-soft); margin-top:40px; }
.footer-grid{ max-width:1200px; margin:0 auto; display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:32px; }
.footer-grid h4{ font-size:.8rem; letter-spacing:.06em; text-transform:uppercase; color:var(--ink-faint); margin:0 0 14px; }
.footer-grid a{ display:block; font-size:.88rem; color:var(--ink-soft); margin-bottom:10px; }
.footer-grid a:hover{ color:var(--seal); }
.footer-bottom{ max-width:1200px; margin:36px auto 0; padding-top:24px; border-top:1px solid var(--line-soft); display:flex; justify-content:space-between; font-size:.78rem; color:var(--ink-faint); }

@media (max-width: 980px){
  .hero{ grid-template-columns:1fr; padding-top:56px; }
  .feature-grid{ grid-template-columns:1fr 1fr; }
  .why-grid{ grid-template-columns:1fr 1fr; }
  .template-strip{ grid-template-columns:repeat(2,1fr); }
  .footer-grid{ grid-template-columns:1fr 1fr; }
  .nav-links{ display:none; }
}