/* ========================================
   DraftBridge Landing Page — style.css
   ======================================== */

:root {
  /* Color palette */
  --color-bg: #0a0e1a;
  --color-surface: #111827;
  --color-surface-hover: #1a2235;
  --color-surface-elevated: #1e293b;
  --color-border: rgba(255, 255, 255, 0.06);
  --color-border-accent: rgba(99, 131, 255, 0.2);
  --color-text: #e2e8f0;
  --color-text-muted: #94a3b8;
  --color-text-dim: #64748b;
  --color-heading: #f1f5f9;
  --color-primary: #6383ff;
  --color-primary-hover: #7c9aff;
  --color-primary-glow: rgba(99, 131, 255, 0.15);
  --color-accent: #38bdf8;
  --color-success: #34d399;
  --color-warning: #fbbf24;
  --color-danger: #f87171;

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  /* Shadows */
  --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.3), 0 0 0 1px var(--color-border);
  --shadow-elevated: 0 4px 24px rgba(0, 0, 0, 0.4), 0 0 0 1px var(--color-border);
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-text);
  background-color: var(--color-bg);
  overflow-x: hidden;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

h1, h2, h3 {
  color: var(--color-heading);
  line-height: 1.2;
  font-weight: 700;
}

h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  letter-spacing: -0.03em;
}

h2 {
  font-size: clamp(1.5rem, 3.5vw, 2.2rem);
  letter-spacing: -0.02em;
  text-align: center;
  margin-bottom: var(--space-md);
}

h3 {
  font-size: 1.15rem;
  font-weight: 600;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--color-primary-hover);
}

/* ========================================
   Buttons
   ======================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-weight: 600;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  white-space: nowrap;
}

.btn-sm {
  padding: 0.45rem 1rem;
  font-size: 0.875rem;
}

.btn-lg {
  padding: 0.85rem 2rem;
  font-size: 1.05rem;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 0 20px var(--color-primary-glow);
}

.btn-primary:hover {
  background: var(--color-primary-hover);
  color: #fff;
  box-shadow: 0 0 32px var(--color-primary-glow);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}

.btn-ghost:hover {
  color: var(--color-text);
  border-color: var(--color-text-dim);
  background: rgba(255, 255, 255, 0.03);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-border-accent);
}

.btn-outline:hover {
  color: var(--color-primary-hover);
  border-color: var(--color-primary);
  background: var(--color-primary-glow);
}

/* ========================================
   Header
   ======================================== */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 14, 26, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
}

.logo-icon {
  font-size: 1.5rem;
}

.logo-text {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-heading);
}

.header-nav {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

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

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

/* ========================================
   Hero
   ======================================== */

.hero {
  position: relative;
  padding: 10rem 0 6rem;
  text-align: center;
  overflow: hidden;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 720px;
  margin: 0 auto;
}

.hero-sub {
  font-size: 1.2rem;
  color: var(--color-text-muted);
  margin-top: var(--space-lg);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-actions {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  margin-top: var(--space-2xl);
  flex-wrap: wrap;
}

.hero-note {
  margin-top: var(--space-lg);
  font-size: 0.85rem;
  color: var(--color-text-dim);
}

.hero-glow {
  position: absolute;
  top: 30%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(ellipse at center, var(--color-primary-glow) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

/* ========================================
   Pain Section
   ======================================== */

.pain-section {
  padding: var(--space-4xl) 0;
}

.pain-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
}

.pain-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  transition: border-color 0.3s, transform 0.2s;
}

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

.pain-icon {
  font-size: 2rem;
  margin-bottom: var(--space-md);
}

.pain-card h3 {
  margin-bottom: var(--space-sm);
}

.pain-card p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

/* ========================================
   How It Works
   ======================================== */

.how-section {
  padding: var(--space-4xl) 0;
}

.section-sub {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 1.1rem;
  margin-bottom: var(--space-3xl);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
}

.step-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  position: relative;
  transition: border-color 0.3s, transform 0.2s;
}

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

.step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--color-primary-glow);
  border: 1px solid var(--color-border-accent);
  color: var(--color-primary);
  font-weight: 800;
  font-size: 1.1rem;
  margin-bottom: var(--space-lg);
}

.step-card h3 {
  margin-bottom: var(--space-sm);
}

.step-card p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

/* ========================================
   Features
   ======================================== */

.features-section {
  padding: var(--space-4xl) 0;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-xl);
  margin-top: var(--space-3xl);
}

.feature-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  transition: border-color 0.3s, transform 0.2s;
}

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

.feature-card h3 {
  margin-bottom: var(--space-sm);
}

.feature-card p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

/* ========================================
   Pricing
   ======================================== */

.pricing-section {
  padding: var(--space-4xl) 0;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-3xl);
}

.pricing-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  display: flex;
  flex-direction: column;
  position: relative;
  transition: border-color 0.3s, transform 0.2s;
}

.pricing-card:hover {
  transform: translateY(-3px);
}

.pricing-card--popular {
  border-color: var(--color-primary);
  box-shadow: 0 0 40px var(--color-primary-glow);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.3rem 1rem;
  border-radius: 99px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.pricing-name {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-heading);
  margin-bottom: var(--space-sm);
}

.pricing-price {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--color-heading);
  margin-bottom: var(--space-lg);
}

.pricing-price span {
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text-muted);
}

.pricing-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-bottom: var(--space-2xl);
  flex-grow: 1;
}

.pricing-features li {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  padding-left: 1.4rem;
  position: relative;
}

.pricing-features li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-success);
  font-weight: 700;
}

.pricing-card .btn {
  width: 100%;
}

/* ========================================
   CTA Section
   ======================================== */

.cta-section {
  padding: var(--space-4xl) 0;
}

.cta-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border-accent);
  border-radius: var(--radius-xl);
  padding: var(--space-3xl);
  text-align: center;
  box-shadow: 0 0 60px var(--color-primary-glow);
}

.cta-card h2 {
  margin-bottom: var(--space-md);
}

.cta-card > p {
  color: var(--color-text-muted);
  max-width: 560px;
  margin: 0 auto var(--space-2xl);
}

.cta-form {
  max-width: 560px;
  margin: 0 auto;
  text-align: left;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  margin-bottom: var(--space-md);
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-muted);
}

.form-group input,
.form-group textarea {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  padding: 0.65rem 0.85rem;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-glow);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--color-text-dim);
}

.cta-form .btn {
  width: 100%;
  margin-top: var(--space-sm);
}

.form-note {
  margin-top: var(--space-md);
  color: var(--color-text-dim);
  font-size: 0.9rem;
  line-height: 1.5;
  text-align: center;
}

.form-note + .form-note {
  margin-top: var(--space-sm);
}

.form-note a {
  color: var(--color-text);
}

.form-note-secondary {
  font-size: 0.85rem;
}

/* ========================================
   Footer
   ======================================== */

.site-footer {
  padding: var(--space-3xl) 0;
  border-top: 1px solid var(--color-border);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
  text-align: center;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
}

.footer-brand p {
  color: var(--color-text-dim);
  font-size: 0.9rem;
}

.footer-links {
  display: flex;
  gap: var(--space-xl);
  flex-wrap: wrap;
  justify-content: center;
}

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

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

.footer-copy {
  color: var(--color-text-dim);
  font-size: 0.8rem;
}

/* ========================================
   Responsive
   ======================================== */

@media (max-width: 768px) {
  .hero {
    padding: 7rem 0 4rem;
  }

  .header-nav a:not(.btn) {
    display: none;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 380px;
    margin-left: auto;
    margin-right: auto;
  }
}