* {
  box-sizing: border-box;
}

:root {
  --bg: #07111f;
  --bg-soft: #0d1b2a;
  --panel: rgba(15, 23, 42, 0.88);
  --panel-strong: #101b2d;
  --muted: #9aa9bb;
  --text: #eaf2ff;
  --text-soft: #b7c2d3;
  --primary: #7c3aed;
  --primary-2: #8b5cf6;
  --primary-3: #a78bfa;
  --accent: #1dd1a1;
  --accent-soft: rgba(29, 209, 161, 0.15);
  --warning: #fbbf24;
  --card-border: rgba(148, 163, 184, 0.18);
  --shadow: 0 30px 60px rgba(12, 17, 29, 0.45);
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(124, 58, 237, 0.35), transparent 28%),
    radial-gradient(circle at bottom right, rgba(29, 209, 161, 0.2), transparent 25%),
    var(--bg);
  color: var(--text);
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input {
  font: inherit;
}

.container {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: rgba(7, 17, 31, 0.72);
  border-bottom: 1px solid rgba(148, 163, 184, 0.12);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 78px;
  gap: 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  letter-spacing: -0.04em;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  box-shadow: 0 20px 35px rgba(124, 58, 237, 0.45);
}

.nav-links,
.nav-actions,
.hero-actions,
.footer-inner,
.footer-links {
  display: flex;
  align-items: center;
}

.nav-links {
  gap: 22px;
  color: var(--text-soft);
  font-size: 0.95rem;
}

.nav-links a {
  transition: color 0.2s ease;
}

.nav-links a:hover {
  color: var(--text);
}

.nav-actions {
  gap: 12px;
}

.btn {
  border: none;
  border-radius: 999px;
  padding: 0.9rem 1.25rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-ghost {
  background: rgba(148, 163, 184, 0.08);
  color: var(--text);
  border: 1px solid rgba(148, 163, 184, 0.12);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  color: white;
  box-shadow: 0 20px 30px rgba(124, 58, 237, 0.35);
}

.btn-secondary {
  background: rgba(148, 163, 184, 0.08);
  color: var(--text);
  border: 1px solid rgba(148, 163, 184, 0.16);
}

.hero {
  padding: 72px 0 48px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.eyebrow {
  display: inline-block;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--primary-3);
  font-size: 0.72rem;
  font-weight: 700;
  margin-bottom: 18px;
}

.hero-copy h1 {
  font-size: clamp(2.8rem, 5vw, 5rem);
  line-height: 1;
  letter-spacing: -0.06em;
  margin: 0 0 20px;
  max-width: 620px;
}

.hero-copy p {
  margin: 0;
  max-width: 620px;
  color: var(--text-soft);
  font-size: 1.08rem;
  line-height: 1.7;
}

.hero-actions {
  gap: 16px;
  margin-top: 28px;
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 36px;
}

.hero-stats div {
  min-width: 150px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.hero-stats strong {
  font-size: clamp(1.3rem, 3vw, 2rem);
  letter-spacing: -0.05em;
}

.hero-stats span {
  color: var(--text-soft);
  font-size: 0.88rem;
}

.hero-card-wrap {
  position: relative;
}

.panel-glow {
  position: relative;
  z-index: 1;
  padding: 20px 20px 12px;
  border-radius: 28px;
  background: linear-gradient(180deg, rgba(17, 24, 39, 0.98), rgba(9, 15, 24, 0.92));
  border: 1px solid rgba(148, 163, 184, 0.14);
  box-shadow: var(--shadow);
}

.panel-glow::before {
  content: "";
  position: absolute;
  inset: -24px 36px auto auto;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: rgba(124, 58, 237, 0.24);
  filter: blur(40px);
  z-index: -1;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}

.muted-label {
  color: var(--muted);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.panel-header h3 {
  margin: 8px 0 0;
  font-size: 1.4rem;
}

.chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 0.4rem 0.7rem;
  font-size: 0.72rem;
  font-weight: 700;
}

.chip.success {
  background: rgba(29, 209, 161, 0.14);
  color: #7bf5d2;
}

.chip.neutral {
  background: rgba(148, 163, 184, 0.12);
  color: var(--text-soft);
}

.mini-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 14px;
}

.metric-box {
  background: rgba(148, 163, 184, 0.06);
  border: 1px solid rgba(148, 163, 184, 0.08);
  border-radius: 18px;
  padding: 15px 14px;
  min-height: 92px;
}

.metric-box.accent {
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.22), rgba(139, 92, 246, 0.08));
}

.metric-box span,
.metric-box small {
  display: block;
  color: var(--text-soft);
}

.metric-box strong {
  display: block;
  margin: 8px 0 4px;
  font-size: clamp(1.2rem, 2vw, 1.7rem);
  letter-spacing: -0.05em;
}

.chart-bars {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  align-items: end;
  gap: 10px;
  height: 120px;
  padding: 16px 8px 10px;
  margin: 10px 0 16px;
  background: rgba(15, 23, 42, 0.75);
  border-radius: 18px;
  border: 1px solid rgba(148, 163, 184, 0.07);
}

.chart-bars span {
  display: block;
  border-radius: 999px 999px 8px 8px;
  background: linear-gradient(180deg, #a78bfa, #7c3aed);
  min-height: 24px;
}

.deal-list {
  display: grid;
  gap: 10px;
}

.deal-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 12px 12px;
  border-radius: 16px;
  background: rgba(148, 163, 184, 0.04);
  border: 1px solid rgba(148, 163, 184, 0.08);
}

.deal-item h4,
.deal-item p {
  margin: 0;
}

.deal-item p {
  margin-top: 2px;
  color: var(--text-soft);
  font-size: 0.82rem;
}

.section {
  padding: 96px 0;
}

.section-alt {
  background: rgba(12, 18, 30, 0.7);
  border-top: 1px solid rgba(148, 163, 184, 0.08);
  border-bottom: 1px solid rgba(148, 163, 184, 0.08);
}

.section-head {
  margin-bottom: 28px;
}

.section-head h2 {
  max-width: 720px;
  margin: 0;
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.06em;
}

.section-head.narrow h2 {
  max-width: 620px;
}

.feature-grid,
.monetization-grid,
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.feature-card,
.monetization-card,
.step-box {
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid var(--card-border);
  border-radius: 24px;
  padding: 24px;
}

.icon {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.2), rgba(29, 209, 161, 0.18));
  margin-bottom: 18px;
  font-size: 1.5rem;
}

.feature-card h3,
.monetization-card h3,
.step-box h3 {
  margin: 0 0 10px;
  font-size: 1.3rem;
}

.feature-card p,
.monetization-card p,
.step-box p,
.calculator-copy p,
.footer p {
  margin: 0;
  color: var(--text-soft);
  line-height: 1.7;
}

.card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
  font-size: 0.8rem;
  color: var(--text-soft);
}

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 0.45rem 0.7rem;
  font-weight: 700;
}

.badge.blue {
  background: rgba(96, 165, 250, 0.14);
  color: #7cc4ff;
}

.badge.purple {
  background: rgba(168, 85, 247, 0.15);
  color: #d4a7ff;
}

.badge.green {
  background: rgba(34, 197, 94, 0.14);
  color: #8ef0b3;
}

.badge.orange {
  background: rgba(251, 146, 60, 0.14);
  color: #f8c88c;
}

.calculator-layout {
  display: grid;
  grid-template-columns: 1fr 0.95fr;
  gap: 28px;
  align-items: center;
}

.calculator-copy h2 {
  font-size: clamp(2.1rem, 4vw, 3rem);
  letter-spacing: -0.06em;
  margin: 0 0 18px;
}

.check-list {
  list-style: none;
  padding: 0;
  margin: 24px 0 0;
  display: grid;
  gap: 12px;
  color: var(--text-soft);
}

.check-list li {
  position: relative;
  padding-left: 28px;
}

.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--accent);
  font-weight: 700;
}

.calculator-card {
  padding: 26px;
  background: linear-gradient(180deg, rgba(15, 23, 42, 0.98), rgba(9, 15, 24, 0.92));
  border: 1px solid var(--card-border);
  border-radius: 26px;
  box-shadow: var(--shadow);
}

.calculator-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}

.calculator-head h3 {
  margin: 0;
  font-size: 1.4rem;
}

.calculator-card label {
  display: block;
  margin-bottom: 10px;
  font-weight: 600;
  color: var(--text-soft);
}

.input-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(148, 163, 184, 0.06);
  border: 1px solid rgba(148, 163, 184, 0.12);
  border-radius: 14px;
  padding: 0 14px;
}

.input-wrap span {
  color: var(--text-soft);
  font-weight: 700;
}

.input-wrap input {
  width: 100%;
  border: none;
  outline: none;
  background: transparent;
  color: var(--text);
  padding: 0.95rem 0;
  font-size: 1.2rem;
}

.calc-breakdown {
  margin-top: 20px;
  display: grid;
  gap: 14px;
}

.calc-breakdown div {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  padding: 14px 0;
  border-top: 1px solid rgba(148, 163, 184, 0.1);
}

.calc-breakdown div:first-child {
  border-top: none;
}

.calc-breakdown span {
  color: var(--text-soft);
}

.steps-grid {
  margin-top: 18px;
}

.step-box {
  min-height: 220px;
}

.step-number {
  display: inline-block;
  margin-bottom: 14px;
  color: var(--primary-3);
  font-weight: 800;
  letter-spacing: 0.08em;
}

.footer {
  padding: 42px 0 64px;
}

.footer-inner {
  justify-content: space-between;
  gap: 20px;
  padding-top: 24px;
  border-top: 1px solid rgba(148, 163, 184, 0.1);
}

.footer-links {
  gap: 20px;
  color: var(--text-soft);
}

@media (max-width: 980px) {
  .hero-grid,
  .calculator-layout,
  .feature-grid,
  .monetization-grid,
  .steps-grid {
    grid-template-columns: 1fr;
  }

  .nav {
    flex-wrap: wrap;
    justify-content: center;
    padding: 16px 0;
  }

  .nav-links {
    order: 3;
    width: 100%;
    justify-content: center;
    flex-wrap: wrap;
  }
}

@media (max-width: 640px) {
  .nav-actions {
    width: 100%;
    justify-content: center;
  }

  .hero {
    padding-top: 48px;
  }

  .hero-copy h1 {
    font-size: 2.7rem;
  }

  .btn {
    width: 100%;
  }

  .hero-actions {
    flex-direction: column;
  }

  .feature-grid,
  .monetization-grid,
  .steps-grid {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}