:root {
  --bg: #0f1117;
  --bg2: #161b27;
  --bg3: #1e2535;
  --text: #e8eaf0;
  --text-muted: #8a90a0;
  --primary: #3b82f6;
  --primary-dark: #2563eb;
  --accent: #f59e0b;
  --accent-light: #fcd34d;
  --danger: #ef4444;
  --success: #22c55e;
  --border: #2a3040;
  --card: #1a2030;
  --radius: 12px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: 'Inter', system-ui, sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; }
h1,h2,h3,h4 { font-weight: 800; line-height: 1.2; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }
.container-sm { max-width: 760px; margin: 0 auto; padding: 0 20px; }

/* BUTTONS */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 14px 28px; border-radius: 8px; font-weight: 700; font-size: 1rem; cursor: pointer; border: none; transition: all .2s; text-align: center; }
.btn-primary { background: linear-gradient(135deg, var(--primary), #6366f1); color: white; box-shadow: 0 4px 20px rgba(59,130,246,.4); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(59,130,246,.5); }
.btn-cta { background: linear-gradient(135deg, #f59e0b, #ef4444); color: white; font-size: 1.1rem; padding: 18px 36px; box-shadow: 0 4px 20px rgba(245,158,11,.4); }
.btn-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(245,158,11,.5); }
.btn-outline { background: transparent; border: 2px solid var(--border); color: var(--text); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }
.btn-green { background: linear-gradient(135deg, #16a34a, #22c55e); color: white; }
.btn-green:hover { transform: translateY(-2px); }
.btn-full { width: 100%; }

/* TOP BANNER */
.top-banner { background: var(--primary-dark); color: white; padding: 10px 20px; text-align: center; font-weight: 600; font-size: .9rem; position: sticky; top: 0; z-index: 100; }
.top-banner a { color: white; text-decoration: underline; }

/* CARDS */
.card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; }
.card-highlight { border: 2px solid var(--primary); box-shadow: 0 0 30px rgba(59,130,246,.15); }

/* BADGES */
.badge { display: inline-flex; align-items: center; gap: 6px; padding: 6px 16px; border-radius: 999px; font-size: .8rem; font-weight: 700; letter-spacing: .05em; }
.badge-primary { background: rgba(59,130,246,.15); color: var(--primary); }
.badge-accent { background: linear-gradient(135deg, var(--accent), #f97316); color: #1a1a1a; }
.badge-danger { background: rgba(239,68,68,.15); color: var(--danger); }
.badge-success { background: rgba(34,197,94,.15); color: var(--success); }

/* SECTIONS */
section { padding: 64px 0; }
.section-dark { background: var(--bg2); }
.section-darker { background: var(--bg3); }

/* TEXT UTILITIES */
.text-primary { color: var(--primary); }
.text-accent { color: var(--accent); }
.text-danger { color: var(--danger); }
.text-success { color: var(--success); }
.text-muted { color: var(--text-muted); }
.text-center { text-align: center; }
.font-black { font-weight: 900; }
.text-sm { font-size: .875rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }
.text-2xl { font-size: 1.5rem; }
.text-3xl { font-size: 1.875rem; }
.text-4xl { font-size: 2.25rem; }
.text-5xl { font-size: 3rem; }

/* GRADIENT TEXT */
.grad-text { background: linear-gradient(135deg, var(--primary), var(--accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.grad-text-red { background: linear-gradient(135deg, var(--danger), #dc2626); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

/* GRID */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 24px; }
@media(max-width:768px) { .grid-2, .grid-3 { grid-template-columns: 1fr; } }

/* FORM */
.form-group { margin-bottom: 16px; }
.form-label { display: block; font-size: .875rem; font-weight: 600; margin-bottom: 6px; color: var(--text-muted); }
.form-input { width: 100%; padding: 12px 16px; background: var(--bg2); border: 1.5px solid var(--border); border-radius: 8px; color: var(--text); font-size: 1rem; transition: border-color .2s; }
.form-input:focus { outline: none; border-color: var(--primary); }

/* DIVIDER */
.divider { border: none; border-top: 1px solid var(--border); margin: 24px 0; }

/* CHECK ITEM */
.check-item { display: flex; gap: 12px; align-items: flex-start; margin-bottom: 12px; }
.check-icon { flex-shrink: 0; width: 22px; height: 22px; border-radius: 50%; background: rgba(34,197,94,.2); color: var(--success); display: flex; align-items: center; justify-content: center; font-size: 12px; margin-top: 2px; }
.x-icon { flex-shrink: 0; width: 22px; height: 22px; border-radius: 50%; background: rgba(239,68,68,.2); color: var(--danger); display: flex; align-items: center; justify-content: center; font-size: 12px; margin-top: 2px; }

/* MODAL */
.modal-overlay { display:none; position:fixed; inset:0; background:rgba(0,0,0,.85); z-index:1000; align-items:center; justify-content:center; padding:20px; }
.modal-overlay.active { display:flex; }
.modal-box { background: var(--card); border-radius: var(--radius); max-width: 700px; width:100%; max-height: 90vh; overflow-y:auto; position:relative; }
.modal-close { position:absolute; top:12px; right:16px; background:none; border:none; color: var(--text-muted); font-size:1.5rem; cursor:pointer; z-index:10; }

/* FOOTER */
footer { background: var(--primary-dark); color: white; padding: 32px 0; text-align: center; font-size: .875rem; opacity: .9; }

/* FAQ ACCORDION */
.faq-item { border-bottom: 1px solid var(--border); }
.faq-q { width:100%; text-align:left; background:none; border:none; color:var(--text); font-size:1rem; font-weight:600; padding:18px 0; cursor:pointer; display:flex; justify-content:space-between; align-items:center; gap:12px; }
.faq-q:hover { color: var(--primary); }
.faq-arrow { flex-shrink:0; transition: transform .3s; }
.faq-item.open .faq-arrow { transform: rotate(180deg); }
.faq-a { display:none; padding-bottom:18px; color: var(--text-muted); line-height:1.7; white-space:pre-wrap; font-size:.95rem; }
.faq-item.open .faq-a { display:block; }

/* PAYMENT METHOD SELECTOR */
.payment-option { width:100%; text-align:left; background: var(--bg2); border: 2px solid var(--border); border-radius: var(--radius); padding: 18px; cursor:pointer; transition: all .2s; margin-bottom:12px; display:flex; align-items:center; gap:16px; }
.payment-option:hover { border-color: var(--primary); }
.payment-option.selected { border-color: var(--primary); background: rgba(59,130,246,.08); }
.payment-radio { width:20px; height:20px; border-radius:50%; border: 2px solid var(--border); flex-shrink:0; margin-left:auto; display:flex; align-items:center; justify-content:center; }
.payment-option.selected .payment-radio { border-color: var(--primary); background: var(--primary); }
.payment-radio-dot { width:8px; height:8px; background:white; border-radius:50%; display:none; }
.payment-option.selected .payment-radio-dot { display:block; }

/* STEP INDICATOR */
.steps { display:flex; align-items:center; justify-content:center; gap:8px; margin-bottom:32px; }
.step-circle { width:44px; height:44px; border-radius:50%; display:flex; align-items:center; justify-content:center; font-weight:700; font-size:1rem; border: 2px solid var(--border); color: var(--text-muted); }
.step-circle.active { background: linear-gradient(135deg, var(--primary), #6366f1); border-color: transparent; color:white; box-shadow: 0 0 20px rgba(59,130,246,.4); }
.step-circle.done { background: var(--success); border-color: transparent; color:white; }
.step-line { width: 60px; height: 2px; background: var(--border); }
.step-line.done { background: var(--success); }

/* ANIMATIONS */
@keyframes bounce { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-8px)} }
.bounce { animation: bounce 2s infinite; }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.5} }
.pulse { animation: pulse 2s infinite; }
@keyframes fade-in { from{opacity:0;transform:translateY(20px)} to{opacity:1;transform:translateY(0)} }
.fade-in { animation: fade-in .6s ease both; }

/* COMPARISON TABLE */
.compare-table { width:100%; border-collapse:collapse; }
.compare-table th, .compare-table td { padding: 12px 16px; text-align:center; border-bottom: 1px solid var(--border); }
.compare-table th:first-child, .compare-table td:first-child { text-align:left; }
.compare-table thead tr { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); }
.compare-table thead th { color:white; font-weight:700; }
.compare-table tbody tr:nth-child(even) { background: var(--bg2); }
.check-green { color: var(--success); font-size:1.1rem; }
.x-red { color: var(--danger); font-size:1.1rem; }

/* MOBILE FIXES */
@media(max-width:600px) {
  .text-5xl { font-size:2.2rem; }
  .text-4xl { font-size:1.8rem; }
  .text-3xl { font-size:1.5rem; }
  section { padding: 48px 0; }
  .btn-cta { font-size:1rem; padding: 16px 24px; }
  .compare-table { font-size:.8rem; }
  .compare-table th, .compare-table td { padding: 8px 10px; }
}