:root {
  --bg: #0b1020;
  --bg-elevated: #131b33;
  --bg-card: #17213e;
  --bg-input: #0e162b;
  --border: #273661;
  --border-accent: #3b82f6;
  --text: #f1f5f9;
  --text-muted: #94a3b8;
  --accent: #38bdf8;
  --accent-strong: #2563eb;
  --emerald: #10b981;
  --emerald-bg: rgba(16, 185, 129, 0.14);
  --amber: #f59e0b;
  --amber-bg: rgba(245, 158, 11, 0.14);
  --rose: #f43f5e;
  --rose-bg: rgba(244, 63, 94, 0.14);
  --purple: #a855f7;
  --radius: 14px;
  --shadow: 0 14px 34px rgba(0, 0, 0, 0.35);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Inter, Helvetica, Arial, sans-serif;
  background: radial-gradient(circle at top right, #172554 0%, var(--bg) 48%);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.15s ease;
}

a:hover {
  color: #7dd3fc;
}

.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* Header & Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11, 16, 32, 0.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 0;
  gap: 1rem;
  flex-wrap: wrap;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--text);
  letter-spacing: -0.02em;
}

.brand-badge {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.15rem;
  flex-wrap: wrap;
  font-size: 0.92rem;
}

.nav-links a {
  color: var(--text-muted);
  font-weight: 500;
}

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

/* Hero */
.hero {
  padding: 3.5rem 0 2.5rem;
  text-align: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  background: var(--emerald-bg);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.35);
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  font-size: 0.83rem;
  font-weight: 600;
  margin-bottom: 1.1rem;
}

.hero h1 {
  font-size: clamp(2rem, 4.2vw, 3.1rem);
  line-height: 1.15;
  letter-spacing: -0.03em;
  max-width: 880px;
  margin: 0 auto 1rem;
}

.hero p.lead {
  color: var(--text-muted);
  font-size: 1.12rem;
  max-width: 740px;
  margin: 0 auto 1.75rem;
}

.btn-row {
  display: flex;
  gap: 0.85rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.72rem 1.3rem;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.15s ease;
}

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

.btn-primary {
  background: linear-gradient(135deg, #2563eb, #0ea5e9);
  color: #ffffff;
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.35);
}

.btn-primary:hover {
  color: #ffffff;
}

.btn-emerald {
  background: linear-gradient(135deg, #059669, #10b981);
  color: #ffffff;
  box-shadow: 0 8px 20px rgba(16, 185, 129, 0.3);
}

.btn-emerald:hover {
  color: #ffffff;
}

.btn-outline {
  background: rgba(23, 33, 62, 0.75);
  color: var(--text);
  border-color: var(--border);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: #ffffff;
}

.btn-sm {
  padding: 0.48rem 0.9rem;
  font-size: 0.85rem;
  border-radius: 8px;
}

/* Section Layout */
section {
  padding: 2.4rem 0;
}

.section-head {
  margin-bottom: 1.6rem;
}

.section-head h2 {
  font-size: 1.75rem;
  letter-spacing: -0.02em;
  margin-bottom: 0.4rem;
}

.section-head p {
  color: var(--text-muted);
  font-size: 1rem;
}

/* Grids & Cards */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.35rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 1.35rem;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.card-highlight {
  border-color: rgba(56, 189, 248, 0.55);
  background: linear-gradient(180deg, rgba(30, 58, 138, 0.32) 0%, var(--bg-card) 100%);
}

.card-top {
  margin-bottom: 1.15rem;
}

.tag-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}

.pill {
  display: inline-block;
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  background: rgba(56, 189, 248, 0.14);
  color: var(--accent);
  border: 1px solid rgba(56, 189, 248, 0.3);
}

.pill-emerald {
  background: var(--emerald-bg);
  color: #34d399;
  border-color: rgba(16, 185, 129, 0.3);
}

.pill-amber {
  background: var(--amber-bg);
  color: #fbbf24;
  border-color: rgba(245, 158, 11, 0.3);
}

.card h3 {
  font-size: 1.3rem;
  margin-bottom: 0.45rem;
}

.card p {
  color: var(--text-muted);
  font-size: 0.94rem;
  margin-bottom: 0.85rem;
}

.feature-list {
  list-style: none;
  margin: 0.75rem 0 1.1rem;
}

.feature-list li {
  font-size: 0.9rem;
  color: #cbd5e1;
  padding: 0.25rem 0;
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
}

.feature-list li::before {
  content: "✓";
  color: var(--emerald);
  font-weight: 800;
}

.price-strip {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.7rem 0.95rem;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.9rem;
}

.price-strip strong {
  color: #ffffff;
  font-size: 1.05rem;
}

/* Interactive Calculators & Panels */
.calc-shell {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 1.75rem;
  box-shadow: var(--shadow);
}

.calc-grid {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 1.6rem;
  align-items: start;
}

@media (max-width: 860px) {
  .calc-grid {
    grid-template-columns: 1fr;
  }
}

.form-group {
  margin-bottom: 1rem;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.85rem;
}

label {
  display: block;
  font-size: 0.86rem;
  font-weight: 600;
  color: #cbd5e1;
  margin-bottom: 0.35rem;
}

.label-hint {
  font-weight: 400;
  color: var(--text-muted);
  font-size: 0.78rem;
}

input[type="number"],
input[type="text"],
select,
textarea {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 9px;
  padding: 0.62rem 0.8rem;
  color: var(--text);
  font-size: 0.95rem;
  font-family: inherit;
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.18);
}

.results-panel {
  background: var(--bg-card);
  border: 1px solid rgba(56, 189, 248, 0.38);
  border-radius: 14px;
  padding: 1.4rem;
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.85rem;
  margin: 1rem 0;
}

.kpi-box {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.85rem;
}

.kpi-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.kpi-value {
  font-size: 1.45rem;
  font-weight: 800;
  color: #ffffff;
  margin-top: 0.15rem;
}

.kpi-sub {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 0.15rem;
}

/* Progress Bar */
.progress-wrap {
  margin: 1rem 0;
}

.progress-header {
  display: flex;
  justify-content: space-between;
  font-size: 0.86rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
}

.progress-track {
  width: 100%;
  height: 12px;
  background: var(--bg-input);
  border-radius: 999px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #10b981, #38bdf8);
  border-radius: 999px;
  transition: width 0.25s ease;
}

.progress-fill.warn {
  background: linear-gradient(90deg, #f59e0b, #ef4444);
}

/* Preset Buttons */
.preset-bar {
  display: flex;
  gap: 0.55rem;
  flex-wrap: wrap;
  margin-bottom: 1.15rem;
}

.preset-btn {
  background: var(--bg-input);
  color: #cbd5e1;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.4rem 0.75rem;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
}

.preset-btn:hover {
  border-color: var(--accent);
  color: #ffffff;
}

/* Tables */
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--bg-card);
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.92rem;
}

th, td {
  padding: 0.8rem 1rem;
  border-bottom: 1px solid var(--border);
}

th {
  background: var(--bg-input);
  color: #cbd5e1;
  font-weight: 700;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

tr:last-child td {
  border-bottom: none;
}

/* CTA Funnel Banner */
.cta-funnel {
  margin-top: 2rem;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.28), rgba(16, 185, 129, 0.22));
  border: 1px solid rgba(56, 189, 248, 0.5);
  border-radius: 16px;
  padding: 1.65rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.cta-funnel h3 {
  font-size: 1.35rem;
  margin-bottom: 0.35rem;
}

.cta-funnel p {
  color: #cbd5e1;
  max-width: 680px;
  font-size: 0.95rem;
}

/* Code / JSON Preview */
pre.code-box {
  background: #070b16;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.95rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.82rem;
  color: #a5f3fc;
  overflow-x: auto;
  max-height: 300px;
  white-space: pre;
}

/* FAQ & Legal Content */
.faq-list {
  display: grid;
  gap: 1rem;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.2rem 1.4rem;
}

.faq-item h3 {
  font-size: 1.05rem;
  margin-bottom: 0.4rem;
  color: #ffffff;
}

.faq-item p {
  color: var(--text-muted);
  font-size: 0.93rem;
}

.legal-doc {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2.2rem;
  margin: 2rem 0;
}

.legal-doc h1 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.legal-doc h2 {
  font-size: 1.25rem;
  margin: 1.6rem 0 0.55rem;
  color: #ffffff;
}

.legal-doc p, .legal-doc li {
  color: #cbd5e1;
  margin-bottom: 0.65rem;
}

.legal-doc ul {
  padding-left: 1.4rem;
  margin-bottom: 1rem;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 0;
  margin-top: 3rem;
  color: var(--text-muted);
  font-size: 0.88rem;
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 2rem;
  flex-wrap: wrap;
}

.footer-links {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
}