/* Base */
:root {
  --bg: #0b0f1a;
  --bg-alt: #101629;
  --text: #e6ebff;
  --muted: #b8c0ff;
  --primary: #7c5cff;
  --primary-700: #6a48ff;
  --outline: #27305a;
  --success: #3ddc97;
  --accent: #00d4ff;
  --shadow: 0 10px 30px rgba(0,0,0,0.35);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color: var(--text);
  background: radial-gradient(1200px 600px at 10% -20%, #151b3a 0%, #0b0f1a 45%), var(--bg);
}

.container { width: 100%; max-width: 1120px; margin: 0 auto; padding: 0 20px; }

a { color: var(--text); text-decoration: none; }
p { color: var(--muted); line-height: 1.7; }
h1, h2, h3 { margin: 0 0 10px; }
h1 { font-size: 2.75rem; letter-spacing: -0.02em; }
h2 { font-size: 2rem; letter-spacing: -0.01em; }
h3 { font-size: 1.2rem; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 50; backdrop-filter: saturate(170%) blur(8px); background: rgba(9, 13, 26, 0.75); border-bottom: 1px solid var(--outline); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 10px; letter-spacing: -0.01em; }
.brand-logo { width: 36px; height: 36px; border-radius: 8px; box-shadow: 0 6px 16px rgba(0,0,0,0.35); }
.brand-text { display: inline-flex; flex-direction: column; gap: 2px; }
.brand-title { font-weight: 800; line-height: 1.05; }
.brand-sub { color: var(--muted); font-weight: 600; font-size: 0.85rem; line-height: 1.1; }
.nav { display: flex; gap: 18px; align-items: center; }
.nav a { color: var(--muted); }
.nav .btn-sm { padding: 8px 12px; border: 1px solid var(--outline); border-radius: 10px; }
.menu-toggle { display: none; background: none; border: 1px solid var(--outline); color: var(--text); border-radius: 10px; padding: 6px 10px; }

/* Header left group with Home icon and brand */
.header-left { display: flex; align-items: center; gap: 12px; }
.home-link { display: inline-flex; align-items: center; justify-content: center; width: 28px; height: 28px; color: inherit; }
.home-link svg { width: 24px; height: 24px; }
.home-link:hover { opacity: 0.85; }

/* Buttons */
.btn { display: inline-block; padding: 12px 18px; border-radius: 12px; background: linear-gradient(135deg, var(--primary), var(--accent)); color: #0b0f1a; font-weight: 700; box-shadow: var(--shadow); }
.btn:hover { filter: brightness(1.05); }
.btn-outline { display: inline-block; padding: 12px 18px; border-radius: 12px; border: 1px solid var(--outline); color: var(--text); background: transparent; }

/* Hero */
.hero { position: relative; overflow: hidden; }
.hero:before { content: ""; position: absolute; inset: -80px -80px auto auto; width: 430px; height: 430px; background: radial-gradient(closest-side, rgba(124,92,255,0.25), rgba(0,212,255,0.1), transparent 70%); filter: blur(20px); }
.hero-content { padding: 80px 0 40px; text-align: center; }
.hero .sub { max-width: 820px; margin: 12px auto 24px; }
.hero .cta { display: flex; gap: 12px; align-items: center; justify-content: center; margin: 18px 0 26px; }
.stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; margin-top: 18px; }
.stat { background: linear-gradient(180deg, rgba(124,92,255,0.12), rgba(124,92,255,0.06)); border: 1px solid var(--outline); border-radius: 16px; padding: 16px; }
.stat span { display: block; font-size: 1.75rem; font-weight: 800; }
.stat small { color: var(--muted); }

/* Sections */
.section { padding: 64px 0; }
.section.alt { background: var(--bg-alt); border-top: 1px solid var(--outline); border-bottom: 1px solid var(--outline); }
.section-sub { color: var(--muted); margin-bottom: 22px; }

/* Grid */
.grid { display: grid; gap: 18px; }
.grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.services-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.card { background: #0d1326; border: 1px solid var(--outline); border-radius: 16px; padding: 18px; box-shadow: var(--shadow); }
.card p { margin: 6px 0 0; }

/* Icons */
.icon { display: inline-flex; align-items: center; justify-content: center; width: 34px; height: 34px; border-radius: 10px; margin-right: 10px; background: linear-gradient(180deg, rgba(124,92,255,0.18), rgba(0,212,255,0.12)); color: var(--accent); border: 1px solid var(--outline); }
.card .icon + h3 { display: inline-block; vertical-align: middle; }
.card h3 { display: inline-block; vertical-align: middle; }

.pill-stats { display: flex; flex-wrap: wrap; gap: 10px; }
.pill { display: inline-flex; align-items: center; gap: 8px; padding: 10px 12px; border-radius: 999px; border: 1px solid var(--outline); background: #0d1326; }

.results-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.result { background: linear-gradient(180deg, rgba(61,220,151,0.1), rgba(61,220,151,0.06)); border: 1px solid var(--outline); border-radius: 16px; padding: 18px; }
.result .value { font-size: 1.6rem; font-weight: 800; color: var(--success); }
.result .label { display: block; font-weight: 600; }
.result small { color: var(--muted); }

/* Charts */
.charts { margin-top: 22px; }
.line-chart { width: 100%; height: auto; }
.line-chart path.data { stroke-linecap: round; }
.line-chart .axis { stroke: rgba(184,192,255,0.35); stroke-width: 1; }
.line-chart .grid line { stroke: rgba(184,192,255,0.18); stroke-width: 1; }
.line-chart .labels text { fill: var(--muted); font-size: 12px; }
.line-chart .point { transform: scale(0); transform-origin: center; }
.chart .line-chart path.data { transition: stroke-dashoffset 1.8s ease-in-out; }
.chart.animate .line-chart .point { transform: scale(1); transition: transform 0.6s ease 0.2s; }
.bar-chart { display: grid; gap: 10px; }
.bar { display: grid; grid-template-columns: 140px 1fr auto; gap: 8px; align-items: center; }
.bar .label { color: var(--muted); font-weight: 600; }
.meter { background: #0b0f1a; border: 1px solid var(--outline); border-radius: 999px; overflow: hidden; height: 14px; }
.meter .fill { width: 0; height: 100%; background: linear-gradient(90deg, var(--primary), var(--accent)); box-shadow: 0 0 12px rgba(124,92,255,0.5); }
.chart.animate .meter .fill { width: calc(var(--value) * 1%); transition: width 1.2s cubic-bezier(0.22, 1, 0.36, 1); }
.bar .value { color: var(--text); font-weight: 700; font-variant-numeric: tabular-nums; min-width: 48px; text-align: right; }

/* Multi-series colors & legend */
.data.seo { stroke: #7c5cff; filter: drop-shadow(0 0 6px rgba(124,92,255,0.4)); }
.data.sem { stroke: #00d4ff; filter: drop-shadow(0 0 6px rgba(0,212,255,0.35)); }
.data.social { stroke: #ff5cf0; filter: drop-shadow(0 0 6px rgba(255,92,240,0.35)); }
.data.email { stroke: #61dc97; filter: drop-shadow(0 0 6px rgba(97,220,151,0.35)); }
.point.seo { fill: #7c5cff; }
.point.sem { fill: #00d4ff; }
.point.social { fill: #ff5cf0; }
.point.email { fill: #61dc97; }
.legend { display: flex; gap: 10px; align-items: center; margin: 8px 0 6px; }
.legend .chip { display: inline-flex; align-items: center; gap: 8px; padding: 6px 10px; border-radius: 999px; border: 1px solid var(--outline); background: #0d1326; color: var(--muted); font-weight: 600; }
.legend .chip.seo { color: #7c5cff; }
.legend .chip.sem { color: #00d4ff; }
.legend .chip.social { color: #ff5cf0; }
.legend .chip.email { color: #61dc97; }

/* Stars */
.stars { display: inline-flex; gap: 4px; color: #ffd166; margin: 8px 0; }

.testimonials-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.testimonial { background: #0d1326; border: 1px solid var(--outline); border-radius: 16px; padding: 18px; box-shadow: var(--shadow); }
.testimonial cite { display: block; margin-top: 8px; color: var(--muted); font-style: normal; }

.badges { display: flex; flex-wrap: wrap; gap: 10px; }
.badge { padding: 10px 12px; border-radius: 12px; border: 1px solid var(--outline); background: #0d1326; color: var(--muted); }
.learn { color: var(--accent); font-weight: 600; }
.learn:hover { text-decoration: underline; }

/* CTA */
.cta-section { padding: 56px 0; background: linear-gradient(135deg, rgba(124,92,255,0.2), rgba(0,212,255,0.15)); border-top: 1px solid var(--outline); }
.cta-inner { display: grid; grid-template-columns: 1.2fr 1fr; gap: 20px; align-items: center; }
.cta-form { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.cta-form input { padding: 12px 14px; border-radius: 12px; border: 1px solid var(--outline); background: #0d1326; color: var(--text); }
.cta-form button { grid-column: 1 / -1; }

/* Footer */
.site-footer { border-top: 1px solid var(--outline); background: #0b0f1a; }
.footer-inner { display: grid; grid-template-columns: 1fr auto auto; gap: 16px; align-items: center; padding: 24px 0; }
.foot-links { display: flex; gap: 12px; }
.foot-links a { color: var(--muted); }

/* Responsive */
@media (max-width: 1000px) {
  .services-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .results-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cta-inner { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  h1 { font-size: 2.2rem; }
  .grid.two { grid-template-columns: 1fr; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .nav { display: none; position: absolute; top: 64px; left: 0; right: 0; background: #0b0f1a; border-bottom: 1px solid var(--outline); padding: 14px 20px; }
  .nav.open { display: flex; flex-direction: column; gap: 10px; }
  .menu-toggle { display: inline-block; }
}

/* Chart animation hook */
.chart:not(.animate) .line-chart path.data { /* stroke dash set in JS, offset initially equals length */ }
.chart.animate .line-chart path.data { stroke-dashoffset: 0; }