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

:root {
  --bg: #0d1117;
  --bg2: #161b22;
  --bg3: #1c2128;
  --border: #30363d;
  --text: #e6edf3;
  --text2: #8b949e;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: #dbeafe;
  --green: #16a34a;
  --green-bg: #052e16;
  --red: #dc2626;
  --red-bg: #450a0a;
  --blue-bg: #0c1a3a;
  --radius: 12px;
  --font: 'Inter', sans-serif;
}

html { scroll-behavior: smooth; }
body { background: var(--bg); color: var(--text); font-family: var(--font); line-height: 1.6; }

.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

/* HEADER */
header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(13,17,23,0.85); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
}
.header-inner { display: flex; align-items: center; justify-content: space-between; }
.logo { display: flex; align-items: center; gap: 8px; }
.logo-icon { font-size: 24px; }
.logo-text { font-size: 18px; font-weight: 700; color: var(--text); }
.logo-badge { font-size: 11px; color: var(--text2); background: var(--bg3); border: 1px solid var(--border); border-radius: 20px; padding: 2px 8px; }

/* BUTTONS */
.btn { display: inline-flex; align-items: center; gap: 6px; border-radius: 8px; font-weight: 600; font-size: 14px; text-decoration: none; transition: all .2s; cursor: pointer; border: none; }
.btn-primary { background: var(--primary); color: #fff; padding: 10px 20px; }
.btn-primary:hover { background: var(--primary-hover); transform: translateY(-1px); }
.btn-outline { background: transparent; color: var(--text); border: 1px solid var(--border); padding: 9px 18px; }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }
.btn-ghost { background: transparent; color: var(--text2); padding: 10px 18px; }
.btn-ghost:hover { color: var(--text); }
.btn-large { padding: 14px 32px; font-size: 16px; border-radius: 10px; }

/* HERO */
.hero { padding: 80px 0 60px; }
.hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.pill { display: inline-block; font-size: 13px; color: var(--primary); background: rgba(37,99,235,.12); border: 1px solid rgba(37,99,235,.3); border-radius: 20px; padding: 4px 14px; margin-bottom: 20px; }
h1 { font-size: clamp(32px, 4vw, 48px); font-weight: 800; line-height: 1.15; margin-bottom: 20px; }
.subtitle { font-size: 17px; color: var(--text2); max-width: 480px; margin-bottom: 32px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 16px; }
.hero-note { font-size: 12px; color: var(--text2); }

/* MOCKUP */
.mockup-card { background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; box-shadow: 0 24px 64px rgba(0,0,0,.4); }
.mockup-bar { background: var(--bg3); padding: 12px 16px; display: flex; align-items: center; gap: 8px; border-bottom: 1px solid var(--border); }
.dot { width: 10px; height: 10px; border-radius: 50%; }
.dot.red { background: #ff5f57; }
.dot.yellow { background: #febc2e; }
.dot.green { background: #28c840; }
.mockup-title { font-size: 12px; color: var(--text2); margin-left: 8px; }
.mockup-body { padding: 20px; display: flex; flex-direction: column; gap: 12px; }
.mockup-stat { padding: 14px 16px; border-radius: 8px; display: flex; justify-content: space-between; align-items: center; }
.mockup-stat.green { background: var(--green-bg); border: 1px solid var(--green); }
.mockup-stat.red { background: var(--red-bg); border: 1px solid var(--red); }
.mockup-stat.blue { background: var(--blue-bg); border: 1px solid var(--primary); }
.stat-label { font-size: 13px; color: var(--text2); }
.stat-value { font-size: 16px; font-weight: 700; }
.mockup-stat.green .stat-value { color: #4ade80; }
.mockup-stat.red .stat-value { color: #f87171; }
.mockup-stat.blue .stat-value { color: #60a5fa; }
.mockup-row { font-size: 13px; color: var(--text2); padding: 8px 0; border-top: 1px solid var(--border); }

/* FEATURES */
.features { padding: 80px 0; }
.section-title { font-size: 32px; font-weight: 800; text-align: center; margin-bottom: 48px; }
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature-card { background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px 24px; transition: border-color .2s; }
.feature-card:hover { border-color: var(--primary); }
.feature-icon { font-size: 28px; margin-bottom: 14px; }
.feature-card h3 { font-size: 16px; font-weight: 600; margin-bottom: 8px; }
.feature-card p { font-size: 14px; color: var(--text2); }

/* STEPS */
.steps { padding: 80px 0; background: var(--bg2); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.steps-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; margin-bottom: 48px; }
.step { display: flex; gap: 20px; align-items: flex-start; }
.step-num { width: 40px; height: 40px; border-radius: 50%; background: var(--primary); color: #fff; font-weight: 800; font-size: 18px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.step-content h3 { font-size: 16px; font-weight: 600; margin-bottom: 6px; }
.step-content p { font-size: 14px; color: var(--text2); }

.download-box {
  background: var(--bg3); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px 32px; display: flex; align-items: center; justify-content: space-between;
  gap: 24px; margin-bottom: 16px;
}
.download-name { font-size: 18px; font-weight: 700; display: block; }
.download-meta { font-size: 13px; color: var(--text2); margin-top: 4px; display: block; }
.download-note { font-size: 13px; color: var(--text2); text-align: center; }
.download-note a { color: var(--text2); text-decoration: underline; }

/* FOOTER */
footer { padding: 28px 0; border-top: 1px solid var(--border); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; font-size: 13px; color: var(--text2); }
footer a { color: var(--text2); text-decoration: underline; }

/* RESPONSIVE */
@media (max-width: 768px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
  .features-grid { grid-template-columns: 1fr 1fr; }
  .steps-grid { grid-template-columns: 1fr; }
  .download-box { flex-direction: column; text-align: center; }
  .footer-inner { flex-direction: column; gap: 8px; text-align: center; }
}
@media (max-width: 480px) {
  .features-grid { grid-template-columns: 1fr; }
}