*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
  --bg:#ffffff;--bg2:#f6f8fa;--bg3:#e8ecf0;
  --text:#1a1f36;--text2:#5a6378;
  --accent:#2b44a0;--accent2:#3b5fc0;--accent-glow:rgba(43,68,160,.12);
  --green:#10b981;--green2:#059669;--green-glow:rgba(16,185,129,.12);
  --radius:12px;
}
html{font-size:16px;scroll-behavior:smooth}
body{
  font-family:'Inter',system-ui,-apple-system,sans-serif;
  background:var(--bg);color:var(--text);
  line-height:1.6;min-height:100vh;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--accent2);text-decoration:none}
a:hover{text-decoration:underline}

/* Layout */
.container{max-width:720px;margin:0 auto;padding:0 24px}
.container--wide{max-width:860px;margin:0 auto;padding:0 24px}

/* Header */
header{
  padding:20px 0;border-bottom:1px solid var(--bg3);
  background:rgba(255,255,255,.9);backdrop-filter:blur(12px);
  position:sticky;top:0;z-index:10;
}
header .container{display:flex;align-items:center;justify-content:space-between}
.logo{font-size:1.1rem;font-weight:700;letter-spacing:-.02em;color:var(--text)}
.logo span{color:var(--accent2)}
.header-badge{
  font-size:.75rem;padding:4px 10px;border-radius:20px;
  background:var(--bg2);color:var(--text2);border:1px solid var(--bg3);
}

/* Hero */
.hero{padding:60px 0 40px;text-align:center}
.hero-logo{
  width:180px;margin:0 auto 24px;
  display:flex;align-items:center;justify-content:center;
}
.hero-logo img{width:180px;height:auto;object-fit:contain}
.hero h1{
  font-size:2.2rem;font-weight:800;letter-spacing:-.03em;
  line-height:1.15;margin-bottom:14px;color:var(--text);
}
.hero h1 .highlight{
  background:linear-gradient(135deg,var(--accent),var(--accent2));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
}
.hero p{font-size:1.05rem;color:var(--text2);max-width:480px;margin:0 auto}

/* Plans */
.plans{padding:20px 0 60px}
.plans-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;max-width:860px;margin:0 auto}
.plan-card{
  background:var(--bg2);border:1px solid var(--bg3);
  border-radius:16px;padding:32px 28px;
  display:flex;flex-direction:column;position:relative;
  transition:box-shadow .2s;
}
.plan-card:hover{box-shadow:0 8px 32px rgba(0,0,0,.06)}
.plan-card--white{
  border-color:rgba(16,185,129,.25);
  background:linear-gradient(170deg,rgba(16,185,129,.05) 0%,var(--bg2) 50%);
}
.plan-badge{
  position:absolute;top:-11px;right:20px;
  background:linear-gradient(135deg,var(--green),var(--green2));
  color:#fff;font-size:.7rem;font-weight:600;
  padding:4px 14px;border-radius:20px;
  letter-spacing:.03em;text-transform:uppercase;
}
.plan-header{display:flex;align-items:center;gap:14px;margin-bottom:16px}
.plan-icon{
  width:44px;height:44px;flex-shrink:0;
  background:var(--accent-glow);border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  color:var(--accent2);
}
.plan-icon svg{width:24px;height:24px}
.plan-icon--white{background:var(--green-glow);color:var(--green)}
.plan-card h3{font-size:1.15rem;font-weight:700;line-height:1.3}
.plan-subtitle{font-size:.78rem;color:var(--text2);font-weight:400}
.plan-desc{font-size:.85rem;color:var(--text2);line-height:1.6;margin-bottom:16px}
.plan-features{list-style:none;padding:0;margin:0 0 24px}
.plan-features li{
  font-size:.84rem;color:var(--text);
  padding:5px 0 5px 24px;position:relative;
}
.plan-features li::before{
  content:'';position:absolute;left:0;top:9px;
  width:16px;height:16px;border-radius:50%;
  background:var(--accent-glow);
}
.plan-features li::after{
  content:'✓';position:absolute;left:3px;top:5px;
  color:var(--accent2);font-weight:700;font-size:.7rem;
}
.plan-card--white .plan-features li::before{background:var(--green-glow)}
.plan-card--white .plan-features li::after{color:var(--green)}
.plan-price{margin-bottom:16px;margin-top:auto;padding-top:8px}
.plan-amount{
  font-size:2rem;font-weight:800;letter-spacing:-.03em;display:block;
  line-height:1.2;
}
.plan-amount small{font-size:.9rem;font-weight:600;opacity:.7}
.plan-period{font-size:.78rem;color:var(--text2);display:block;margin-top:2px}

/* Email input in plan card */
.plan-email-input{
  display:block;width:100%;margin-top:10px;padding:9px 14px;
  border-radius:8px;border:1px solid var(--bg3);
  background:var(--bg);color:var(--text);
  font-size:.82rem;font-family:inherit;outline:none;
  transition:border-color .15s;-webkit-appearance:none;appearance:none;
}
.plan-email-input:focus{border-color:var(--accent2)}
.plan-email-input::placeholder{color:#9ca3af;font-size:.82rem}
.plan-card--white .plan-email-input:focus{border-color:var(--green)}

/* Plan buy button */
.btn-plan{
  display:flex;align-items:center;justify-content:center;
  width:100%;padding:14px 20px;border-radius:var(--radius);border:none;
  background:linear-gradient(135deg,var(--accent),var(--accent2));
  color:#fff;font-size:1rem;font-weight:600;cursor:pointer;
  transition:transform .15s,box-shadow .15s;
  box-shadow:0 4px 20px var(--accent-glow);
}
.btn-plan:hover{transform:translateY(-1px);box-shadow:0 6px 28px var(--accent-glow)}
.btn-plan:active{transform:translateY(0)}
.btn-plan:disabled{opacity:.6;cursor:not-allowed;transform:none}
.btn-plan--white{
  background:linear-gradient(135deg,var(--green),var(--green2));
  box-shadow:0 4px 20px var(--green-glow);
}
.btn-plan--white:hover{box-shadow:0 6px 28px var(--green-glow)}

/* Expandable instructions */
.plan-instructions{margin-top:16px}
.plan-instructions summary{
  font-size:.82rem;font-weight:500;color:var(--text2);
  cursor:pointer;padding:8px 0;
  list-style:none;display:flex;align-items:center;gap:6px;
  user-select:none;transition:color .15s;
}
.plan-instructions summary:hover{color:var(--text)}
.plan-instructions summary::-webkit-details-marker{display:none}
.plan-instructions summary::before{
  content:'';width:0;height:0;
  border-left:5px solid var(--text2);border-top:4px solid transparent;border-bottom:4px solid transparent;
  transition:transform .2s;
}
.plan-instructions[open] summary::before{transform:rotate(90deg)}
.plan-instructions-body{
  padding:14px 16px;background:#fff;border:1px solid var(--bg3);
  border-radius:var(--radius);margin-top:6px;
}
.plan-instructions-body ol{padding-left:18px;margin:0}
.plan-instructions-body li{
  font-size:.82rem;color:var(--text2);line-height:1.7;margin-bottom:6px;
}
.plan-instructions-body b{color:var(--text)}
.plan-instructions-body a{font-size:.82rem}

/* Features section */
.features{padding:60px 0;border-top:1px solid var(--bg3)}
.features h2{
  text-align:center;font-size:1.4rem;font-weight:700;
  margin-bottom:32px;letter-spacing:-.02em;
}
.features-grid{display:flex;flex-direction:column;gap:16px}
.feature-card{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--bg2);border:1px solid var(--bg3);
  border-radius:var(--radius);padding:20px;
}
.feature-icon{
  width:44px;height:44px;min-width:44px;flex-shrink:0;
  background:var(--accent-glow);border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  color:var(--accent2);
}
.feature-icon svg{width:22px;height:22px;min-width:22px;max-width:22px}
.feature-card h3{font-size:.9rem;font-weight:600;margin-bottom:4px}
.feature-card p{font-size:.82rem;color:var(--text2);line-height:1.5}

/* Product (legacy compat) */
.product{padding:60px 0;border-top:1px solid var(--bg3)}
.product h2{text-align:center;font-size:1.4rem;font-weight:700;margin-bottom:32px;letter-spacing:-.02em}
.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:32px}
.product-card{background:var(--bg2);border:1px solid var(--bg3);border-radius:var(--radius);padding:24px 18px}
.product-icon{width:40px;height:40px;margin-bottom:14px;color:var(--accent2)}
.product-icon svg{width:100%;height:100%}
.product-card h3{font-size:.9rem;font-weight:600;margin-bottom:8px}
.product-card p{font-size:.82rem;color:var(--text2);line-height:1.5}

/* Use cases */
.usecases{padding:50px 0;border-top:1px solid var(--bg3)}
.usecases h2{text-align:center;font-size:1.4rem;font-weight:700;margin-bottom:32px;letter-spacing:-.02em}

/* Footer */
footer{
  padding:32px 0;border-top:1px solid var(--bg3);
  text-align:center;font-size:.8rem;color:var(--text2);
}
.footer-info p{margin-bottom:6px}
.footer-links{display:flex;justify-content:center;gap:8px;align-items:center;flex-wrap:wrap}
.footer-sep{opacity:.3}
footer a{color:var(--text2)}
footer a:hover{color:var(--text)}

/* Order page */
.order-page{padding:80px 0;text-align:center;min-height:70vh;display:flex;align-items:center}
.order-card{
  background:var(--bg2);border:1px solid var(--bg3);
  border-radius:16px;padding:48px 36px;max-width:480px;margin:0 auto;width:100%;
}
.order-card h1{font-size:1.6rem;font-weight:700;margin-bottom:12px}
.order-card p{color:var(--text2);margin-bottom:24px}
.status-badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:20px;font-size:.85rem;font-weight:500;margin-bottom:24px;
}
.status-pending{background:rgba(210,153,34,.12);color:#a67c10}
.status-paid{background:rgba(26,135,66,.1);color:#1a8742}
.status-failed{background:rgba(218,54,51,.1);color:#c53030}
.status-fulfilling{background:rgba(43,68,160,.1);color:var(--accent)}

.qr-wrap{
  background:#fff;border-radius:12px;padding:16px;
  display:inline-block;margin:20px 0;box-shadow:0 2px 8px rgba(0,0,0,.06);
}
.qr-wrap img{display:block;max-width:280px;width:100%}
.btn-download{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 28px;border-radius:var(--radius);border:none;
  background:var(--green);color:#fff;font-size:.95rem;
  font-weight:600;cursor:pointer;transition:opacity .15s;margin-top:16px;
}
.btn-download:hover{opacity:.9}
.instructions{
  text-align:left;background:#fff;border:1px solid var(--bg3);border-radius:var(--radius);
  padding:20px;margin-top:24px;font-size:.85rem;color:var(--text2);line-height:1.8;
}
.instructions strong{color:var(--text)}
.save-warning{
  margin-top:20px;padding:12px 16px;border-radius:8px;
  background:rgba(210,153,34,.08);border:1px solid rgba(210,153,34,.15);
  font-size:.8rem;color:#a67c10;
}

/* Spinner */
.spinner{
  width:32px;height:32px;border:3px solid var(--bg3);
  border-top-color:var(--accent2);border-radius:50%;
  animation:spin .8s linear infinite;margin:0 auto 16px;
}
@keyframes spin{to{transform:rotate(360deg)}}

/* Support bubble */
.support-section{padding:48px 0}
.support-bubble{
  background:var(--bg2);border:1px solid var(--bg3);
  border-radius:20px;padding:40px 32px;text-align:center;
  max-width:480px;margin:0 auto;box-shadow:0 4px 24px rgba(0,0,0,.04);
}
.support-icon{
  width:56px;height:56px;border-radius:50%;
  background:var(--accent-glow);color:var(--accent);
  display:flex;align-items:center;justify-content:center;margin:0 auto 16px;
}
.support-bubble h3{font-size:1.2rem;font-weight:700;margin-bottom:8px}
.support-bubble p{color:var(--text2);font-size:.9rem;line-height:1.6;margin-bottom:24px}
.btn-support{
  display:inline-flex;align-items:center;gap:8px;padding:16px 36px;
  background:#2AABEE;color:#fff;font-weight:600;
  border-radius:var(--radius);font-size:1.05rem;
  transition:all .2s;text-decoration:none;
  box-shadow:0 4px 16px rgba(42,171,238,.3);
}
.btn-support:hover{background:#229ED9;transform:translateY(-2px);box-shadow:0 6px 24px rgba(42,171,238,.4);text-decoration:none}
.btn-support:active{transform:translateY(0)}

/* Offer page */
.offer-page{padding:60px 0;min-height:70vh}
.offer-page h1{font-size:1.6rem;font-weight:700;margin-bottom:8px}
.offer-page .offer-date{color:var(--text2);font-size:.85rem;margin-bottom:32px}
.offer-page h2{font-size:1.1rem;font-weight:600;margin:28px 0 12px}
.offer-page p,.offer-page li{font-size:.88rem;color:var(--text2);line-height:1.7;margin-bottom:8px}
.offer-page ul,.offer-page ol{padding-left:20px}
.offer-page li{margin-bottom:6px}

/* Responsive */
@media(max-width:700px){
  .hero{padding:40px 0 28px}
  .hero h1{font-size:1.7rem}
  .hero p{font-size:.95rem}
  .hero-logo{width:140px}
  .hero-logo img{width:140px}
  .plans-grid{grid-template-columns:1fr;gap:16px}
  .plan-card{padding:24px 20px}
  .product-grid{grid-template-columns:1fr;gap:12px}
  .order-card{padding:32px 20px}
  .container--wide{padding:0 16px}
}