*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --color-bg-app: #121212;
  --color-bg-sidebar: #1a1a1a;
  --color-bg-card: #1e1e1e;
  --color-bg-elevated: #252525;
  --color-primary: #00bcd4;
  --color-primary-hover: #00a0b8;
  --color-primary-glow: rgba(0, 188, 212, 0.18);
  --color-text-primary: #ffffff;
  --color-text-secondary: #a0a0a0;
  --color-text-muted: #6b7280;
  --color-border: rgba(255, 255, 255, 0.08);
  --color-success: #22c55e;
  --color-error: #f87171;
  --radius-card: 12px;
  --radius-button: 8px;
  --radius-pill: 9999px;
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

[data-theme="light"] {
  --color-bg-app: #f8fafc;
  --color-bg-sidebar: #ffffff;
  --color-bg-card: #ffffff;
  --color-bg-elevated: #f1f5f9;
  --color-text-primary: #0f172a;
  --color-text-secondary: #475569;
  --color-text-muted: #64748b;
  --color-border: rgba(15, 23, 42, 0.1);
  --color-primary-glow: rgba(0, 188, 212, 0.12);
}

html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--color-bg-app);
  color: var(--color-text-primary);
  line-height: 1.6;
}
.container { width: min(1120px, 100% - 48px); margin-inline: auto; }

.wave { position: fixed; pointer-events: none; z-index: 0; opacity: 0.35; }
.wave-tl { top: -40px; left: -60px; width: 320px; }
.wave-br { bottom: -80px; right: -40px; width: 380px; }

.nav {
  position: sticky; top: 0; z-index: 50; height: 64px;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 24px;
  background: color-mix(in srgb, var(--color-bg-app) 88%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}
.nav-logo { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--color-text-primary); font-weight: 700; }
.nav-logo img { width: 32px; height: 32px; object-fit: contain; }
.nav-links { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.nav-links a { color: var(--color-text-secondary); text-decoration: none; font-size: 0.92rem; }
.nav-links a:hover { color: var(--color-primary); }
.nav-cta { background: var(--color-primary); color: #fff !important; padding: 8px 16px; border-radius: var(--radius-button); font-weight: 600; }

.switch-group { display: inline-flex; border: 1px solid var(--color-border); border-radius: var(--radius-pill); overflow: hidden; }
.switch-btn { border: none; background: transparent; color: var(--color-text-secondary); padding: 5px 10px; font-size: 0.78rem; font-weight: 600; cursor: pointer; }
.switch-btn.is-active { background: var(--color-primary); color: #fff; }

.hero { position: relative; z-index: 1; padding: 72px 0 56px; }
.hero-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 48px; align-items: center; }
.hero-badge { display: inline-block; font-size: 0.78rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--color-primary); border: 1px solid color-mix(in srgb, var(--color-primary) 40%, transparent); background: var(--color-primary-glow); padding: 6px 12px; border-radius: var(--radius-pill); margin-bottom: 20px; }
.hero h1 { font-size: clamp(2rem, 4vw, 3rem); line-height: 1.12; margin-bottom: 18px; }
.hero h1 .accent, .accent { color: var(--color-primary); }
.hero-lead { font-size: 1.08rem; color: var(--color-text-secondary); max-width: 52ch; margin-bottom: 28px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 32px; }
.hero-stats { display: flex; gap: 28px; flex-wrap: wrap; }
.stat-value { display: block; font-size: 1.35rem; font-weight: 700; color: var(--color-primary); }
.stat-label { font-size: 0.82rem; color: var(--color-text-muted); }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border-radius: var(--radius-button); font-weight: 600; text-decoration: none; cursor: pointer; border: none; font-size: 0.95rem; padding: 12px 20px; }
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-hover); }
.btn-ghost { background: transparent; color: var(--color-text-primary); border: 1px solid var(--color-border); }
.btn-ghost:hover { border-color: var(--color-primary); color: var(--color-primary); }

.hero-preview { background: var(--color-bg-card); border: 1px solid var(--color-border); border-radius: 16px; overflow: hidden; box-shadow: 0 24px 60px rgba(0,0,0,0.35); }
.preview-topbar { display: flex; align-items: center; gap: 8px; padding: 12px 16px; background: var(--color-bg-sidebar); border-bottom: 1px solid var(--color-border); font-size: 0.78rem; color: var(--color-text-muted); }
.dot { width: 10px; height: 10px; border-radius: 50%; }
.dot.red { background: #ef4444; } .dot.yellow { background: #eab308; } .dot.green { background: #22c55e; }
.preview-body { display: grid; grid-template-columns: 140px 1fr; min-height: 240px; }
.preview-sidebar { background: var(--color-bg-sidebar); border-right: 1px solid var(--color-border); padding: 16px 12px; }
.preview-nav-item { font-size: 0.72rem; color: var(--color-text-secondary); padding: 8px 10px; border-radius: var(--radius-pill); margin-bottom: 6px; }
.preview-nav-item.active { background: var(--color-primary); color: #fff; }
.preview-main { padding: 20px; }
.preview-cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.preview-card { background: var(--color-bg-elevated); border-radius: 10px; padding: 12px; border: 1px solid var(--color-border); }
.preview-card .label { font-size: 0.62rem; text-transform: uppercase; color: var(--color-text-muted); }
.preview-card .value { font-size: 1.2rem; font-weight: 700; margin-top: 4px; }

.section { position: relative; z-index: 1; padding: 72px 0; }
.section-alt { background: color-mix(in srgb, var(--color-bg-card) 55%, var(--color-bg-app)); border-block: 1px solid var(--color-border); }
.section-title { font-size: clamp(1.6rem, 3vw, 2.2rem); text-align: center; margin-bottom: 10px; }
.section-subtitle { text-align: center; color: var(--color-text-secondary); max-width: 60ch; margin: 0 auto 40px; }

.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px; }
.feature-card { background: var(--color-bg-card); border: 1px solid var(--color-border); border-radius: var(--radius-card); padding: 22px; }
.feature-icon { font-size: 1.5rem; margin-bottom: 10px; }
.feature-card h3 { font-size: 1rem; margin-bottom: 8px; }
.feature-card p { font-size: 0.9rem; color: var(--color-text-secondary); }

.pricing-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; max-width: 760px; margin-inline: auto; }
.price-card, .pricing-card { border-radius: var(--radius-card); overflow: hidden; border: 2px solid var(--color-border); background: var(--color-bg-card); }
.price-card.featured, .pricing-card-standard { border-color: var(--color-primary); box-shadow: 0 0 0 1px var(--color-primary-glow); }
.pricing-card-individual { border-color: #fff; }
.price-header, .pricing-header { padding: 20px; text-align: center; }
.price-card.featured .price-header, .pricing-card-standard .pricing-header { background: var(--color-primary); color: #fff; }
.price-card:not(.featured) .price-header, .pricing-card-individual .pricing-header { background: var(--color-bg-elevated); }
.pricing-header.alt { background: #fff; color: var(--color-primary); }
.price-header h3, .pricing-header { font-size: 0.85rem; letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 6px; font-weight: 700; }
.price-amount { font-size: 1.8rem; font-weight: 800; }
.price-body, .pricing-card ul { padding: 22px 24px 28px; list-style: none; }
.price-body li, .pricing-card li { position: relative; padding-left: 18px; margin-bottom: 10px; font-size: 0.92rem; color: var(--color-text-secondary); }
.price-body li::before, .pricing-card li::before { content: ""; position: absolute; left: 0; top: 0.55em; width: 6px; height: 6px; border-radius: 50%; background: var(--color-primary); }
.price-body .brand, .pricing-card strong { color: var(--color-primary); font-weight: 600; }

.faq-list { max-width: 720px; margin-inline: auto; }
.faq-item { border-bottom: 1px solid var(--color-border); }
.faq-question { width: 100%; background: none; border: none; color: var(--color-text-primary); text-align: left; padding: 18px 0; font-size: 1rem; font-weight: 600; cursor: pointer; display: flex; justify-content: space-between; gap: 16px; }
.faq-answer { display: none; padding-bottom: 18px; color: var(--color-text-secondary); font-size: 0.92rem; }
.faq-item.is-open .faq-answer { display: block; }
.faq-chevron { color: var(--color-primary); transition: transform 0.2s; }
.faq-item.is-open .faq-chevron { transform: rotate(180deg); }

.cta-band { text-align: center; padding: 56px 24px; background: linear-gradient(135deg, color-mix(in srgb, var(--color-primary) 22%, var(--color-bg-card)), var(--color-bg-card)); border: 1px solid var(--color-border); border-radius: 20px; }
.cta-band h2 { font-size: clamp(1.4rem, 3vw, 2rem); margin-bottom: 10px; }
.cta-band p { color: var(--color-text-secondary); margin-bottom: 22px; }

.footer { position: relative; z-index: 1; padding: 40px 0 32px; border-top: 1px solid var(--color-border); color: var(--color-text-muted); font-size: 0.85rem; }
.footer-inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px; align-items: center; }
.footer a { color: var(--color-text-secondary); text-decoration: none; }
.footer a:hover { color: var(--color-primary); }

.modal-overlay { position: fixed; inset: 0; z-index: 100; background: rgba(0,0,0,0.65); display: none; align-items: center; justify-content: center; padding: 24px; }
.modal-overlay.is-open { display: flex; }
.modal-wrap { position: relative; }
.modal { width: min(440px, 100%); background: var(--color-bg-card); border: 1px solid var(--color-border); border-radius: 16px; padding: 28px; box-shadow: 0 24px 80px rgba(0,0,0,0.45); }
.modal h2 { font-size: 1.25rem; margin-bottom: 8px; }
.modal p { color: var(--color-text-secondary); font-size: 0.9rem; margin-bottom: 18px; }
.form-field { margin-bottom: 14px; }
.form-field label { display: block; font-size: 0.85rem; margin-bottom: 6px; color: var(--color-text-secondary); }
.form-field input[type="email"] { width: 100%; padding: 11px 14px; border-radius: var(--radius-button); border: 1px solid var(--color-border); background: var(--color-bg-elevated); color: var(--color-text-primary); }
.checkbox-row { display: flex; gap: 10px; align-items: flex-start; font-size: 0.85rem; color: var(--color-text-secondary); }
.checkbox-row a { color: var(--color-primary); }
.hp-field { position: absolute; left: -9999px; opacity: 0; height: 0; width: 0; overflow: hidden; }
.form-status { min-height: 1.4em; font-size: 0.85rem; margin-top: 10px; }
.form-status.is-error { color: var(--color-error); }
.form-status.is-success { color: var(--color-success); }
.modal-close { position: absolute; top: 16px; right: 16px; background: none; border: none; color: var(--color-text-muted); font-size: 1.4rem; cursor: pointer; }

@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-preview { order: -1; }
  .nav-links a:not(.nav-cta):not([data-demo-href]) { display: none; }
}
@media (max-width: 520px) {
  .container { width: min(1120px, 100% - 32px); }
  .preview-body { grid-template-columns: 1fr; }
  .preview-sidebar { display: none; }
}