/* ─────────────────────────────────────────────────────────────
   DrillFlow Landing — Design System
   Dark, glassmorphism, gradient accents, motion
────────────────────────────────────────────────────────────── */
:root {
  --bg: #070b14;
  --bg-2: #0b1222;
  --surface: rgba(255, 255, 255, 0.04);
  --surface-2: rgba(255, 255, 255, 0.06);
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --text: #eaf0ff;
  --text-dim: #9aa7c4;
  --text-muted: #64708a;
  --cyan: #38bdf8;
  --blue: #3b82f6;
  --green: #34d399;
  --amber: #fbbf24;
  --red: #f87171;
  --violet: #a78bfa;
  --grad: linear-gradient(135deg, #38bdf8 0%, #6366f1 50%, #a78bfa 100%);
  --radius: 20px;
  --radius-sm: 12px;
  --shadow: 0 30px 80px -20px rgba(0, 0, 0, 0.6);
  --font-sans: "Manrope", "Inter", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Background */
.bg-mesh { position: fixed; inset: 0; z-index: -1; pointer-events: none; }
.orb { position: absolute; border-radius: 50%; filter: blur(90px); opacity: 0.35; }
.orb-1 { width: 560px; height: 560px; top: -180px; right: -140px; background: radial-gradient(circle, #1d4ed8 0%, transparent 70%); }
.orb-2 { width: 480px; height: 480px; bottom: -160px; left: -120px; background: radial-gradient(circle, #0891b2 0%, transparent 70%); }
.grid-overlay {
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at center, black 0%, transparent 75%);
}

.container { width: min(1120px, 92%); margin: 0 auto; }

/* Typography */
h1, h2, h3 { font-weight: 800; letter-spacing: -0.02em; line-height: 1.12; }
h1 { font-size: clamp(2.4rem, 5.4vw, 4.2rem); }
h2 { font-size: clamp(1.8rem, 3.6vw, 2.7rem); }
h3 { font-size: 1.12rem; font-weight: 700; }
p { color: var(--text-dim); }
.grad {
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.muted { color: var(--text-muted); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 24px; border-radius: 12px; font-weight: 600; font-size: 0.95rem;
  text-decoration: none; transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s;
  border: 1px solid transparent; cursor: pointer;
}
.btn-primary {
  background: var(--grad); color: #fff;
  box-shadow: 0 12px 32px -10px rgba(99, 102, 241, 0.7);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 18px 40px -10px rgba(99, 102, 241, 0.8); }
.btn-ghost {
  background: var(--surface); border-color: var(--border); color: var(--text);
  backdrop-filter: blur(8px);
}
.btn-ghost:hover { background: var(--surface-2); border-color: var(--border-strong); transform: translateY(-2px); }

/* Nav */
.nav { position: sticky; top: 0; z-index: 50; backdrop-filter: blur(16px); background: rgba(7, 11, 20, 0.72); border-bottom: 1px solid var(--border); }
.nav-inner { width: min(1200px, 94%); margin: 0 auto; display: flex; align-items: center; gap: 28px; padding: 14px 0; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text); }
.brand-mark {
  width: 34px; height: 34px; border-radius: 9px; background: var(--grad);
  display: grid; place-items: center; font-weight: 800; color: #fff; font-size: 1.1rem;
  box-shadow: 0 8px 20px -6px rgba(99, 102, 241, 0.7);
}
.brand-name { font-weight: 800; font-size: 1.15rem; letter-spacing: -0.02em; }
.brand-badge { font-size: 0.72rem; color: var(--text-muted); font-weight: 500; padding-left: 10px; border-left: 1px solid var(--border); }
.nav-links { display: flex; gap: 24px; margin-left: auto; }
.nav-links a { color: var(--text-dim); text-decoration: none; font-size: 0.92rem; font-weight: 500; transition: color 0.2s; }
.nav-links a:hover { color: var(--text); }
.nav-cta { font-size: 0.88rem; padding: 10px 18px; }
.menu-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 6px; }
.menu-toggle span { width: 22px; height: 2px; background: var(--text); border-radius: 2px; transition: 0.3s; }

/* Hero */
.hero { padding: 90px 0 70px; }
.hero-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 60px; align-items: center; }
.chip {
  display: inline-flex; align-items: center; gap: 8px; padding: 7px 14px; border-radius: 999px;
  font-size: 0.78rem; font-weight: 600; background: rgba(56, 189, 248, 0.12); color: var(--cyan);
  border: 1px solid rgba(56, 189, 248, 0.25); margin-bottom: 20px; letter-spacing: 0.02em;
}
.chip-dark { background: var(--surface); color: var(--text-dim); border-color: var(--border); }
.hero-sub { font-size: 1.12rem; max-width: 540px; margin: 22px 0 30px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-stats { list-style: none; display: flex; gap: 32px; margin-top: 40px; flex-wrap: wrap; }
.hero-stats li { display: flex; flex-direction: column; }
.hero-stats strong { font-size: 1.9rem; font-weight: 800; font-family: var(--font-mono); letter-spacing: -0.03em; }
.hero-stats span { font-size: 0.8rem; color: var(--text-muted); }

/* Hero dashboard mock */
.hero-visual { position: relative; }
.dashboard-mock {
  background: linear-gradient(160deg, rgba(255,255,255,0.08), rgba(255,255,255,0.02));
  border: 1px solid var(--border-strong); border-radius: var(--radius);
  box-shadow: var(--shadow); backdrop-filter: blur(12px); overflow: hidden;
}
.mock-bar { display: flex; align-items: center; gap: 8px; padding: 12px 16px; border-bottom: 1px solid var(--border); background: rgba(0,0,0,0.2); }
.dot { width: 10px; height: 10px; border-radius: 50%; }
.dot.red { background: #f87171; } .dot.amber { background: #fbbf24; } .dot.green { background: #34d399; }
.mock-title { margin-left: 8px; font-size: 0.78rem; color: var(--text-muted); font-family: var(--font-mono); }
.mock-body { padding: 20px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.mock-kpi { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 14px; }
.mock-kpi small { display: block; font-size: 0.7rem; color: var(--text-muted); }
.mock-kpi b { display: block; font-size: 1.4rem; font-family: var(--font-mono); margin: 4px 0; }
.mock-kpi em { font-style: normal; font-size: 0.72rem; font-weight: 600; }
.em.up, .up { color: var(--green); } .em.down, .down { color: var(--red); } .em.neutral, .neutral { color: var(--amber); }
.mock-chart { grid-column: 1 / -1; display: flex; align-items: flex-end; gap: 8px; height: 130px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 16px; }
.mock-chart span { flex: 1; background: var(--grad); border-radius: 6px 6px 2px 2px; height: var(--h); opacity: 0.85; animation: grow 0.8s ease both; }
.float-tag {
  position: absolute; padding: 10px 16px; border-radius: 12px; font-size: 0.78rem; font-weight: 600;
  background: rgba(7, 11, 20, 0.85); border: 1px solid var(--border-strong); backdrop-filter: blur(8px);
  box-shadow: 0 14px 30px -12px rgba(0,0,0,0.7); animation: float 5s ease-in-out infinite;
}
.tag-1 { top: -16px; right: 8px; color: var(--green); }
.tag-2 { bottom: -16px; left: 8px; color: var(--cyan); animation-delay: 1.2s; }

/* Screenshot frame (real UI) */
.shot {
  position: relative; margin: 0;
  border-radius: 18px; overflow: hidden;
  border: 1px solid var(--border-strong);
  background: linear-gradient(160deg, rgba(255,255,255,0.09), rgba(255,255,255,0.02));
  box-shadow: var(--shadow), 0 0 0 1px rgba(56,189,248,0.12);
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}
.shot::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(120deg, rgba(56,189,248,0.10), transparent 42%, transparent 60%, rgba(167,139,250,0.10));
  opacity: 0; transition: opacity 0.3s ease;
}
.shot:hover { transform: translateY(-6px); border-color: rgba(56,189,248,0.5);
  box-shadow: 0 40px 90px -24px rgba(0,0,0,0.75), 0 0 0 1px rgba(56,189,248,0.35); }
.shot:hover::after { opacity: 1; }
.shot-bar {
  display: flex; align-items: center; gap: 8px; padding: 12px 16px;
  border-bottom: 1px solid var(--border); background: rgba(0,0,0,0.28);
}
.shot-url {
  margin-left: 10px; font-size: 0.74rem; color: var(--text-muted);
  font-family: var(--font-mono); background: rgba(255,255,255,0.04);
  padding: 3px 10px; border-radius: 999px; border: 1px solid var(--border);
}
.shot img { display: block; width: 100%; height: auto; }
.shot figcaption { padding: 14px 18px; font-size: 0.86rem; color: var(--text-dim); border-top: 1px solid var(--border); }

.shots-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }

/* Section */
.section { padding: 90px 0; }
.section-alt { background: linear-gradient(180deg, transparent, rgba(255,255,255,0.02), transparent); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 50px; }
.section-head.left { text-align: left; margin: 0 0 30px; }
.section-head h2 { margin: 10px 0 14px; }
.section-head p { font-size: 1.02rem; }

/* Modules grid */
.grid { display: grid; gap: 18px; }
.grid.modules { grid-template-columns: repeat(3, 1fr); }
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; transition: transform 0.25s ease, border-color 0.25s, background 0.25s;
}
.card:hover { transform: translateY(-4px); border-color: var(--border-strong); background: var(--surface-2); }
.icon {
  width: 44px; height: 44px; border-radius: 11px; display: grid; place-items: center; font-size: 1.3rem;
  margin-bottom: 16px;
}
.icon.cyan { background: rgba(56,189,248,0.14); } .icon.green { background: rgba(52,211,153,0.14); }
.icon.amber { background: rgba(251,191,36,0.14); } .icon.red { background: rgba(248,113,113,0.14); }
.icon.blue { background: rgba(59,130,246,0.14); } .icon.violet { background: rgba(167,139,250,0.14); }
.card p { font-size: 0.9rem; margin-top: 6px; }

/* Steps */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.step { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; position: relative; overflow: hidden; }
.step-num { font-family: var(--font-mono); font-size: 2.6rem; font-weight: 600; color: rgba(56,189,248,0.35); display: block; line-height: 1; }
.step h3 { margin: 14px 0 8px; }
.step p { font-size: 0.92rem; }

/* Roles */
.grid.roles { grid-template-columns: repeat(4, 1fr); }
.role { text-align: center; padding: 30px 18px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); transition: transform 0.25s, border-color 0.25s; }
.role:hover { transform: translateY(-4px); border-color: var(--border-strong); }
.role-emoji { font-size: 2.2rem; display: block; margin-bottom: 12px; }
.role p { font-size: 0.88rem; margin-top: 6px; }

/* Analytics */
.analytics-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 60px; align-items: center; }
.checklist { list-style: none; margin-top: 22px; display: grid; gap: 12px; }
.checklist li { display: flex; gap: 10px; align-items: flex-start; color: var(--text-dim); font-size: 0.95rem; }
.checklist li::before { content: "✓"; color: var(--green); font-weight: 800; flex-shrink: 0; }
.panel { background: var(--surface); border: 1px solid var(--border-strong); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow); }
.panel-head { display: flex; justify-content: space-between; align-items: center; font-size: 0.82rem; color: var(--text-dim); margin-bottom: 22px; }
.legend i { display: inline-block; width: 10px; height: 10px; border-radius: 3px; background: var(--surface-2); border: 1px solid var(--border-strong); margin-left: 8px; }
.legend i.fact { background: var(--grad); border: 0; }
.bars { display: grid; gap: 18px; }
.bar { display: grid; grid-template-columns: 1fr; align-items: center; gap: 6px; position: relative; }
.bar i { display: block; height: 18px; border-radius: 6px; background: var(--surface-2); width: var(--p); position: relative; transition: width 0.6s ease; }
.bar i.fact { background: var(--grad); height: 10px; margin-top: -4px; }
.bar label { position: absolute; right: 0; top: -2px; font-size: 0.72rem; color: var(--text-muted); font-family: var(--font-mono); }

/* Export */
.export-row { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.export-pill { padding: 12px 20px; border-radius: 999px; background: var(--surface); border: 1px solid var(--border); font-size: 0.9rem; font-weight: 600; color: var(--text-dim); transition: 0.2s; }
.export-pill:hover { border-color: var(--border-strong); color: var(--text); transform: translateY(-2px); }

/* CTA */
.cta { padding: 90px 0 100px; }
.cta-inner {
  background: linear-gradient(150deg, rgba(56,189,248,0.14), rgba(167,139,250,0.1)), var(--surface);
  border: 1px solid var(--border-strong); border-radius: 28px; padding: 60px 50px; text-align: center;
}
.cta-inner h2 { margin-bottom: 12px; }
.cta-inner p { max-width: 560px; margin: 0 auto 28px; }
.cta-form { display: flex; gap: 12px; max-width: 720px; margin: 0 auto; flex-wrap: wrap; justify-content: center; }
.cta-form input {
  flex: 1; min-width: 170px; padding: 13px 16px; border-radius: 12px; border: 1px solid var(--border-strong);
  background: rgba(7, 11, 20, 0.6); color: var(--text); font-family: var(--font-sans); font-size: 0.92rem; outline: none;
}
.cta-form input:focus { border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(56,189,248,0.2); }
.cta-note { font-size: 0.78rem; color: var(--text-muted); margin-top: 16px; }
.cta-note a { color: var(--cyan); text-decoration: none; }
.cta-note a:hover { text-decoration: underline; }

/* Footer */
.footer { border-top: 1px solid var(--border); padding: 44px 0; background: rgba(0,0,0,0.25); }
.footer-inner { display: grid; grid-template-columns: 1.4fr 0.6fr 0.8fr; gap: 40px; align-items: start; }
.footer-brand { display: flex; gap: 12px; }
.footer-brand strong { display: block; font-size: 1.1rem; }
.footer-brand p { font-size: 0.85rem; margin-top: 4px; }
.footer-links { display: grid; gap: 10px; }
.footer-links a { color: var(--text-dim); text-decoration: none; font-size: 0.9rem; }
.footer-links a:hover { color: var(--text); }
.footer-copy { text-align: right; font-size: 0.82rem; color: var(--text-muted); }
.footer-copy p { color: var(--text-muted); margin: 0; }

/* Reveal animation */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }
@keyframes grow { from { height: 0; } to { height: var(--h); } }

/* Responsive */
@media (max-width: 960px) {
  .hero-grid, .analytics-grid { grid-template-columns: 1fr; gap: 48px; }
  .grid.modules { grid-template-columns: repeat(2, 1fr); }
  .grid.roles { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: 1fr; }
  .shots-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: 28px; }
  .footer-copy { text-align: left; }
  .nav-links, .nav-cta { display: none; }
  .menu-toggle { display: flex; margin-left: auto; }
  .nav.open .nav-links {
    display: flex; flex-direction: column; position: absolute; top: 100%; left: 0; right: 0;
    background: rgba(7,11,20,0.98); padding: 20px 5%; gap: 16px; border-bottom: 1px solid var(--border);
  }
  .nav.open .nav-cta { display: inline-flex; margin-left: auto; }
}
@media (max-width: 600px) {
  .grid.modules, .grid.roles { grid-template-columns: 1fr; }
  .hero-stats { gap: 18px; }
  .cta-inner { padding: 40px 24px; }
  .cta-form input { min-width: 100%; }
}