/* ============================================================
   BUSINESS CARD STUDIO PRO — Design System
   Palette: warm brass-on-paper luxury, not the generic
   cream+terracotta AI default — accent is a deep brass/gold,
   paired with an ink near-black and an emerald counter-accent.
   ============================================================ */

:root{
  --paper:        #F3EEE2;
  --paper-deep:   #E9E0CC;
  --surface:      #FFFFFF;
  --surface-glass: rgba(255,255,255,0.6);
  --ink:          #24201A;
  --ink-soft:     #6B6255;
  --ink-faint:    #9A917E;
  --line:         #E1D6BE;
  --line-soft:    #ECE4D2;

  --brass:        #A9803D;
  --brass-deep:   #7E5E28;
  --brass-glow:   #D9B978;
  --emerald:      #1F4A3D;
  --emerald-deep: #143229;
  --danger:       #B23A2E;

  --font-display: 'Fraunces', 'Iowan Old Style', serif;
  --font-body:    'Manrope', -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(36,32,26,0.04), 0 12px 32px -12px rgba(36,32,26,0.16);
  --shadow-lift: 0 2px 4px rgba(36,32,26,0.06), 0 24px 48px -16px rgba(36,32,26,0.24);
}

[data-theme="dark"]{
  --paper:        #17140F;
  --paper-deep:   #100E0A;
  --surface:      #211D16;
  --surface-glass: rgba(33,29,22,0.7);
  --ink:          #F2EBDD;
  --ink-soft:     #C4B9A4;
  --ink-faint:    #7C7160;
  --line:         #3A3327;
  --line-soft:    #2A251C;
  --shadow-soft: 0 1px 2px rgba(0,0,0,0.3), 0 12px 32px -12px rgba(0,0,0,0.5);
  --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);
  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(--brass-glow); color:var(--emerald-deep); }

@media (prefers-reduced-motion: reduce){
  *{ animation-duration:.001ms !important; transition-duration:.001ms !important; }
}

/* ---------- Layout shell ---------- */
.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; letter-spacing:.01em;
}
.brand-mark{
  width:30px; height:30px; border-radius:7px;
  background:linear-gradient(135deg, var(--brass) 0%, var(--brass-deep) 100%);
  position:relative; flex-shrink:0;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.25);
}
.brand-mark::after{
  content:""; position:absolute; inset:7px 7px 7px 7px;
  border:1.4px solid rgba(255,255,255,.55); border-radius:3px;
}
.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); }

.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  font-family:var(--font-body); 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(--brass) 0%, var(--brass-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); border-color:var(--line);
}
.btn-ghost:hover{ border-color:var(--brass); color:var(--brass-deep); }
.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(--brass-deep); display:flex; align-items:center; gap:10px; margin-bottom:18px;
}
.eyebrow::before{ content:""; width:22px; height:1px; background:var(--brass-deep); }
.hero h1{
  font-family:var(--font-display); font-weight:600; font-size:clamp(2.4rem,4.6vw,3.6rem);
  line-height:1.06; letter-spacing:-.01em; margin:0 0 22px;
}
.hero h1 em{ font-style:italic; color:var(--brass-deep); }
.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: tilting card stack */
.card-stage{
  perspective:1400px; display:flex; align-items:center; justify-content:center; height:420px;
}
.card-stack{
  position:relative; width:340px; height:200px; transform-style:preserve-3d;
  transform:rotateX(10deg) rotateY(-18deg); transition:transform .25s ease-out;
}
.stage-card{
  position:absolute; inset:0; border-radius:14px; overflow:hidden;
  box-shadow:0 30px 60px -20px rgba(20,16,8,.45);
  display:flex; flex-direction:column; justify-content:space-between; padding:22px 24px;
}
.stage-card.back{ transform:translate(14px,16px) translateZ(-24px); opacity:.55; }
.stage-card.front{
  background:linear-gradient(155deg, var(--emerald-deep) 0%, var(--emerald) 62%, #24543f 100%);
  color:#EFE7D2;
}
.stage-card.front .sc-name{ font-family:var(--font-display); font-size:1.28rem; font-weight:600; }
.stage-card.front .sc-role{ font-size:.72rem; letter-spacing:.08em; text-transform:uppercase; color:#C9B98A; margin-top:4px; }
.stage-card.front .sc-mark{ width:34px; height:34px; border:1.4px solid #C9B98A; border-radius:8px; position:relative; }
.stage-card.front .sc-mark::after{ content:""; position:absolute; inset:8px; border:1px solid #C9B98A; border-radius:3px; }
.sc-foil{
  position:absolute; top:0; left:-60%; width:40%; height:100%;
  background:linear-gradient(100deg, transparent, rgba(255,255,255,.28), transparent);
  animation:foilsweep 4.5s ease-in-out infinite;
}
@keyframes foilsweep{
  0%,60%{ left:-60%; } 100%{ left:130%; }
}
.stage-card.back{
  background:repeating-linear-gradient(135deg, var(--paper-deep), var(--paper-deep) 8px, var(--paper) 8px, var(--paper) 16px);
}

/* ---------- Sections ---------- */
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(--brass-glow), var(--brass));
  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; }

.template-strip{ display:grid; grid-template-columns:repeat(5,1fr); gap:16px; }
.tpl-card{
  aspect-ratio:1.75/1; border-radius:12px; padding:16px; position:relative; overflow:hidden;
  box-shadow:var(--shadow-soft); cursor:pointer; transition:transform .2s ease;
  display:flex; flex-direction:column; justify-content:space-between;
}
.tpl-card:hover{ transform:translateY(-4px) scale(1.02); }
.tpl-card .tn{ font-family:var(--font-display); font-weight:600; font-size:.92rem; }
.tpl-card .tr{ font-size:.6rem; letter-spacing:.08em; text-transform:uppercase; opacity:.75; }
.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:.82rem; text-align:center; padding:16px;
}

.cta-band{
  margin:0 32px; border-radius:28px; padding:64px 48px; text-align:center;
  background:linear-gradient(135deg, var(--emerald-deep), var(--emerald));
  color:#EFE7D2;
}
.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:#C9BFA0; margin:0 0 30px; }
.cta-band .btn-primary{ background:linear-gradient(135deg,var(--brass-glow),var(--brass)); }

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(--brass-deep); }
.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; }
  .template-strip{ grid-template-columns:repeat(2,1fr); }
  .footer-grid{ grid-template-columns:1fr 1fr; }
  .nav-links{ display:none; }
}