/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0f0f0f;
  --bg-alt: #181818;
  --bg-card: #1e1e1e;
  --fg: #fafafa;
  --fg-muted: #a0a0a0;
  --fg-dim: #606060;
  --accent: #ff5722;
  --accent-hover: #ff7043;
  --accent-dim: rgba(255, 87, 34, 0.15);
  --green: #00c853;
  --green-dim: rgba(0, 200, 83, 0.15);
  --border: #2a2a2a;
  --font-display: 'Instrument Sans', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--accent); color: #fff; }
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

/* ===== NAV ===== */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(15, 15, 15, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--fg);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.875rem;
  color: var(--fg-muted);
}

.nav-cta {
  font-size: 0.85rem;
  padding: 8px 18px;
}

.nav-tagline {
  display: none;
}

@media (max-width: 600px) {
  .nav-cta { display: none; }
  .nav-tagline { display: inline; }
}

/* ===== HERO ===== */
.hero {
  max-width: 1280px;
  margin: 0 auto;
  padding: 80px 32px 96px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.hero-label {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 28px;
}

.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--fg);
  margin-bottom: 24px;
}

.hero-headline em {
  font-style: normal;
  color: var(--accent);
}

.hero-sub {
  font-size: 1.125rem;
  color: var(--fg-muted);
  line-height: 1.7;
  max-width: 460px;
  margin-bottom: 32px;
}

.hero-cta-row {
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: flex-start;
}

.hero-cta-row .btn-primary {
  font-size: 1rem;
  padding: 14px 28px;
  border-radius: 10px;
}

.hero-cta-note {
  font-size: 0.8rem;
  color: var(--fg-dim);
}

/* Dashboard mock */
.dashboard-mock {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 32px 64px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(255, 255, 255, 0.04) inset;
}

.mock-header {
  background: var(--bg-alt);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--border);
}

.mock-dots {
  display: flex;
  gap: 6px;
}

.mock-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--border);
}

.mock-dots span:first-child { background: #ff5f57; }
.mock-dots span:nth-child(2) { background: #ffbd2e; }
.mock-dots span:nth-child(3) { background: #28ca41; }

.mock-title {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--fg-muted);
  margin-left: 8px;
}

.mock-body {
  padding: 24px;
}

.mock-stat-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.mock-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.mock-stat-val {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--fg);
}

.mock-stat-label {
  font-size: 0.75rem;
  color: var(--fg-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.mock-stat-delta {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: 4px;
  width: fit-content;
}

.mock-stat-delta.up {
  color: var(--green);
  background: var(--green-dim);
}

.mock-stat-delta.down {
  color: #ff5722;
  background: rgba(255, 87, 34, 0.15);
}

.mock-chart {
  background: var(--bg-alt);
  border-radius: 10px;
  padding: 16px;
  margin-bottom: 16px;
}

.chart-bars {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  height: 72px;
  margin-bottom: 10px;
}

.chart-bar {
  flex: 1;
  background: var(--border);
  border-radius: 4px 4px 0 0;
  transition: background 0.2s;
}

.chart-bar.active {
  background: var(--accent);
}

.chart-label {
  font-size: 0.7rem;
  color: var(--fg-dim);
}

.mock-insight {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background: rgba(255, 87, 34, 0.08);
  border: 1px solid rgba(255, 87, 34, 0.2);
  border-radius: 8px;
  padding: 12px;
}

.insight-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
  margin-top: 4px;
}

.mock-insight span {
  font-size: 0.8rem;
  color: var(--fg-muted);
  line-height: 1.5;
}

/* ===== ANALYTICS SECTION ===== */
.analytics-section {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 96px 32px;
}

.analytics-inner {
  max-width: 1280px;
  margin: 0 auto;
  text-align: center;
}

.analytics-tag, .features-tag {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 20px;
}

.analytics-headline, .features-headline, .closing-headline {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--fg);
  margin-bottom: 16px;
}

.analytics-sub, .closing-sub {
  font-size: 1.1rem;
  color: var(--fg-muted);
  max-width: 560px;
  margin: 0 auto 64px;
  line-height: 1.7;
}

.analytics-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  text-align: left;
}

.analytics-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 32px;
}

.card-icon {
  width: 48px;
  height: 48px;
  background: var(--accent-dim);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  margin-bottom: 20px;
}

.analytics-card h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--fg);
}

.analytics-card p {
  font-size: 0.9rem;
  color: var(--fg-muted);
  line-height: 1.6;
}

/* ===== FEATURES SECTION ===== */
.features-section {
  background: var(--bg);
  padding: 96px 32px;
}

.features-inner {
  max-width: 1280px;
  margin: 0 auto;
}

.features-headline {
  text-align: center;
  margin-bottom: 64px;
}

.features-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.feature-right {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px;
}

.feature-card--highlight {
  background: var(--bg-alt);
  border-color: rgba(255, 87, 34, 0.25);
}

.fcard-label {
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}

.feature-card h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--fg);
  margin-bottom: 10px;
  line-height: 1.4;
}

.feature-card p {
  font-size: 0.875rem;
  color: var(--fg-muted);
  line-height: 1.6;
  margin-bottom: 16px;
}

.fcard-confidence {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-dim);
  display: inline-block;
  padding: 4px 10px;
  border-radius: 6px;
}

.fcard-confidence.neutral {
  color: var(--fg-muted);
  background: var(--bg-alt);
}

.fcard-confidence.green {
  color: var(--green);
  background: var(--green-dim);
}

/* ===== METRICS SECTION ===== */
.metrics-section {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 64px 32px;
}

.metrics-inner {
  max-width: 1280px;
  margin: 0 auto;
}

.metrics-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
}

.metric-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0 64px;
  text-align: center;
}

.metric-val {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--fg);
  margin-bottom: 6px;
}

.metric-desc {
  font-size: 0.875rem;
  color: var(--fg-muted);
  max-width: 200px;
}

.metric-divider {
  width: 1px;
  height: 48px;
  background: var(--border);
}

/* ===== CLOSING SECTION ===== */
.closing-section {
  padding: 96px 32px;
  background: var(--bg);
}

.closing-inner {
  max-width: 1280px;
  margin: 0 auto;
  text-align: center;
}

.closing-headline {
  margin-bottom: 16px;
}

.closing-sub {
  margin-bottom: 64px;
}

.closing-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 40px;
}

.closing-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.closing-num {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--accent);
}

.closing-label {
  font-size: 0.875rem;
  color: var(--fg-muted);
}

.closing-plus {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--fg-dim);
  margin-bottom: 20px;
}

.closing-cta {
  margin-top: 56px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.closing-cta .btn-primary {
  font-size: 1rem;
  padding: 14px 32px;
  border-radius: 10px;
}

.closing-cta-note {
  font-size: 0.8rem;
  color: var(--fg-dim);
}

/* ===== BUTTONS ===== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
  padding: 10px 22px;
  border-radius: 8px;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.1s ease;
}
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-1px); }
.btn-primary:active { transform: translateY(0); }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  color: var(--fg-muted);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.875rem;
  padding: 8px 16px;
  border-radius: 8px;
  text-decoration: none;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

/* ===== FOOTER ===== */
.footer {
  border-top: 1px solid var(--border);
  padding: 48px 32px;
  background: var(--bg);
}

.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--fg);
}

.footer-tagline {
  font-size: 0.875rem;
  color: var(--fg-dim);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .hero-right {
    order: -1;
  }

  .hero-left {
    text-align: center;
  }

  .hero-sub {
    margin: 0 auto;
  }

  .analytics-grid {
    grid-template-columns: 1fr;
  }

  .features-layout {
    grid-template-columns: 1fr;
  }

  .metrics-row {
    flex-direction: column;
    gap: 40px;
  }

  .metric-divider {
    width: 48px;
    height: 1px;
  }

  .closing-visual {
    flex-direction: column;
    gap: 32px;
  }

  .closing-plus {
    display: none;
  }
}

@media (max-width: 600px) {
  .hero {
    padding: 48px 20px 64px;
  }

  .analytics-section,
  .features-section,
  .closing-section {
    padding: 64px 20px;
  }

  .metrics-section {
    padding: 48px 20px;
  }

  .mock-stat-row {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .nav-inner {
    padding: 0 20px;
  }

  .metric-item {
    padding: 0 32px;
  }
}