/* ==========================================================================
   QUARTERMASTERS DESIGN SYSTEM (CSS)
   Clean, modern, industrial-precision, responsive.
   ========================================================================== */

:root {
  --bg-main: #0c1017;
  --bg-surface: #131923;
  --bg-surface-elevated: #1a2230;
  --bg-input: #0e131b;
  
  --border-subtle: #232d3d;
  --border-active: #3b82f6;
  --border-focus: #60a5fa;

  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  --text-dim: #6b7280;
  
  --accent-primary: #3b82f6;
  --accent-hover: #2563eb;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;
  --accent-danger: #ef4444;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Consolas, monospace;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 12px 0 rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 12px 28px -4px rgba(0, 0, 0, 0.6);

  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-main);
  color: var(--text-main);
}

body {
  font-family: var(--font-sans);
  line-height: 1.6;
  letter-spacing: -0.011em;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Typography Helpers */
h1, h2, h3, h4 {
  color: var(--text-main);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.025em;
}

p {
  color: var(--text-muted);
}

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

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

.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-primary);
  margin-bottom: 8px;
}

.section-header {
  margin-bottom: 48px;
}

.section-title {
  font-size: 2.25rem;
  margin-bottom: 12px;
}

.section-desc {
  font-size: 1.1rem;
  max-width: 640px;
  margin: 0 auto;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
  outline: none;
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 14px 28px;
  font-size: 1.05rem;
}

.btn-block {
  width: 100%;
}

.btn-primary {
  background-color: var(--accent-primary);
  color: #ffffff;
}

.btn-primary:hover {
  background-color: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background-color: transparent;
  border-color: var(--border-subtle);
  color: var(--text-main);
}

.btn-outline:hover {
  background-color: var(--bg-surface-elevated);
  border-color: var(--text-muted);
}

/* Header & Nav */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(12, 16, 23, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
  padding: 16px 0;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}

.logo-mark {
  background-color: var(--accent-primary);
  color: #fff;
  padding: 4px 7px;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
}

.logo-text {
  color: var(--text-main);
}

.logo-tld {
  color: var(--accent-primary);
  font-family: var(--font-mono);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

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

/* Hero Section */
.hero-section {
  padding: 80px 0 60px;
  text-align: center;
  background: radial-gradient(circle at 50% 10%, rgba(59, 130, 246, 0.08) 0%, transparent 60%);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 6px 14px;
  border-radius: 9999px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent-emerald);
  box-shadow: 0 0 8px var(--accent-emerald);
}

.hero-title {
  font-size: 3.5rem;
  letter-spacing: -0.035em;
  margin-bottom: 20px;
}

.highlight-text {
  color: #93c5fd;
}

.hero-subtitle {
  font-size: 1.25rem;
  max-width: 720px;
  margin: 0 auto 36px;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 56px;
}

.hero-metrics {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px 32px;
  max-width: 860px;
  margin: 0 auto;
}

.metric-item {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.metric-num {
  font-size: 1.75rem;
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--text-main);
}

.metric-label {
  font-size: 0.8rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.metric-divider {
  width: 1px;
  height: 36px;
  background-color: var(--border-subtle);
}

/* Contrast / Anti-Agency Section */
.contrast-section {
  padding: 80px 0;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  background-color: #0e131b;
}

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

.contrast-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.contrast-card.good {
  border-color: rgba(59, 130, 246, 0.4);
  background-color: #111827;
}

.contrast-card h3 {
  font-size: 1.3rem;
  margin-bottom: 20px;
}

.badge-good {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--accent-primary);
  letter-spacing: 0.05em;
  margin-bottom: 6px;
}

.comparison-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.comparison-list li {
  font-size: 0.95rem;
  color: var(--text-muted);
}

.contrast-card.good .comparison-list li {
  color: var(--text-main);
}

/* Services Grid */
.services-section {
  padding: 80px 0;
}

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

.service-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.service-card:hover {
  transform: translateY(-2px);
  border-color: var(--border-active);
}

.service-card.highlight-card {
  border-color: rgba(59, 130, 246, 0.5);
  background: linear-gradient(180deg, rgba(30, 58, 138, 0.15) 0%, var(--bg-surface) 100%);
}

.service-icon {
  font-size: 1.8rem;
  margin-bottom: 16px;
}

.service-card h3 {
  font-size: 1.2rem;
  margin-bottom: 10px;
}

.service-card p {
  font-size: 0.92rem;
  margin-bottom: 24px;
  flex-grow: 1;
}

.service-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border-subtle);
  padding-top: 16px;
  font-size: 0.85rem;
}

.turnaround {
  font-family: var(--font-mono);
  color: var(--text-dim);
}

.price-hint {
  font-weight: 600;
  color: var(--accent-primary);
}

/* ROI Calculator */
.calculator-section {
  padding: 80px 0;
  background-color: #0e131b;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.calculator-card {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 40px;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 40px;
  max-width: 960px;
  margin: 0 auto;
}

.calc-inputs {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-main);
  margin-bottom: 8px;
}

.input-with-val {
  display: flex;
  align-items: center;
  gap: 16px;
}

input[type="range"] {
  flex-grow: 1;
  accent-color: var(--accent-primary);
}

.val-badge {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 600;
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-main);
  min-width: 110px;
  text-align: center;
}

input[type="text"]:disabled {
  width: 100%;
  background-color: var(--bg-input);
  border: 1px solid var(--border-subtle);
  padding: 10px 14px;
  border-radius: var(--radius-md);
  color: var(--text-dim);
  font-size: 0.9rem;
}

.calc-results {
  display: flex;
  flex-direction: column;
  gap: 16px;
  justify-content: center;
}

.result-box {
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
}

.res-title {
  font-size: 0.8rem;
  text-transform: uppercase;
  color: var(--text-dim);
  font-weight: 600;
  letter-spacing: 0.05em;
}

.res-amount {
  font-size: 1.5rem;
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--text-main);
  margin: 4px 0;
}

.result-box.qm .res-amount {
  color: var(--accent-primary);
}

.res-sub {
  font-size: 0.78rem;
  color: var(--text-dim);
}

.savings-banner {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
}

.savings-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-emerald);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.savings-amount {
  font-size: 1.8rem;
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--accent-emerald);
}

/* Terminal Section */
.terminal-section {
  padding: 80px 0;
}

.terminal-wrapper {
  background-color: #0b0f17;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  overflow: hidden;
  max-width: 900px;
  margin: 0 auto;
  box-shadow: var(--shadow-lg);
}

.terminal-header {
  background-color: #131a24;
  border-bottom: 1px solid var(--border-subtle);
  padding: 12px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.terminal-dots {
  display: flex;
  gap: 8px;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.dot.red { background-color: #ef4444; }
.dot.yellow { background-color: #f59e0b; }
.dot.green { background-color: #10b981; }

.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-muted);
}

.terminal-status {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-emerald);
  font-weight: 600;
}

.terminal-body {
  padding: 32px;
}

.term-prompt {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text-main);
  margin-bottom: 16px;
}

.prompt-sym {
  color: var(--accent-primary);
  font-weight: 700;
}

.term-options-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 24px;
}

.term-btn {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: left;
}

.term-btn:hover {
  border-color: var(--text-muted);
}

.term-btn.active {
  border-color: var(--accent-primary);
  background-color: rgba(59, 130, 246, 0.1);
}

.opt-title {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 4px;
}

.opt-price {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--accent-primary);
}

.term-field {
  margin-bottom: 20px;
  flex: 1;
}

.term-field-row {
  display: flex;
  gap: 16px;
}

.term-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 8px;
}

textarea, input[type="email"], input[type="text"] {
  width: 100%;
  background-color: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  color: var(--text-main);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  outline: none;
  transition: border-color var(--transition-fast);
}

textarea:focus, input[type="email"]:focus, input[type="text"]:focus {
  border-color: var(--border-focus);
}

.terminal-summary {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  margin-bottom: 24px;
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.term-highlight {
  color: var(--accent-primary);
  font-weight: 700;
}

.terminal-success-box {
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-top: 24px;
}

.terminal-success-box h4 {
  color: var(--accent-emerald);
  margin-bottom: 12px;
  font-size: 1.1rem;
}

.terminal-success-box p {
  color: var(--text-main);
  font-size: 0.95rem;
  margin-bottom: 8px;
}

/* Pricing Grid */
.pricing-section {
  padding: 80px 0;
  background-color: #0e131b;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.currency-toggle-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-top: 24px;
}

.curr-label {
  font-size: 0.85rem;
  color: var(--text-dim);
}

.currency-toggle {
  display: flex;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 3px;
}

.curr-btn {
  background: none;
  border: none;
  padding: 6px 14px;
  font-size: 0.85rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.curr-btn.active {
  background-color: var(--accent-primary);
  color: #fff;
  font-weight: 600;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 48px;
}

.pricing-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  position: relative;
}

.pricing-card.featured {
  border-color: var(--accent-primary);
  background-color: #121a28;
  transform: scale(1.03);
  z-index: 2;
}

.popular-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--accent-primary);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 9999px;
  letter-spacing: 0.05em;
}

.price-tier-name {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 12px;
}

.price-tag {
  font-size: 2.25rem;
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--text-main);
  line-height: 1;
  margin-bottom: 6px;
}

.per-mo {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-dim);
}

.price-sub {
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-bottom: 24px;
}

.pricing-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 32px;
  flex-grow: 1;
}

.pricing-features li {
  font-size: 0.88rem;
  color: var(--text-muted);
}

.pricing-features li strong {
  color: var(--text-main);
}

/* How it Works */
.how-section {
  padding: 80px 0;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.step-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.step-number {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--accent-primary);
  margin-bottom: 16px;
}

.step-card h3 {
  font-size: 1.2rem;
  margin-bottom: 10px;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border-subtle);
  padding: 48px 0;
  background-color: #0a0d14;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 24px;
}

.footer-brand .logo-text {
  font-size: 1.1rem;
  font-weight: 800;
}

.footer-tagline {
  font-size: 0.88rem;
  margin-top: 4px;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  font-size: 0.85rem;
  color: var(--text-dim);
  transition: color var(--transition-fast);
}

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

.footer-meta {
  font-size: 0.8rem;
  color: var(--text-dim);
  border-top: 1px solid var(--border-subtle);
  padding-top: 20px;
  width: 100%;
}

/* Responsive */
@media (max-width: 1024px) {
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .pricing-card.featured {
    transform: none;
  }
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2.5rem;
  }
  .contrast-grid,
  .calculator-card,
  .services-grid,
  .pricing-grid,
  .steps-grid,
  .term-options-grid,
  .term-field-row {
    grid-template-columns: 1fr;
    flex-direction: column;
  }
  .hero-metrics {
    flex-direction: column;
    gap: 16px;
  }
  .metric-divider {
    display: none;
  }
  .nav-links {
    display: none;
  }
}