/*
 * POC.ai Design System
 * Production stylesheet for marketing site
 *
 * Usage: <link rel="stylesheet" href="/styles.css">
 */

/* ========================================================================
   Custom Properties
   ======================================================================== */

:root {
  /* Core palette */
  --color-bg: #07090f;
  --color-bg-raised: #0c1019;
  --color-bg-surface: rgba(255, 255, 255, 0.035);
  --color-bg-surface-hover: rgba(255, 255, 255, 0.06);
  --color-bg-overlay: rgba(7, 9, 15, 0.92);
  --color-border: rgba(255, 255, 255, 0.07);
  --color-border-hover: rgba(255, 255, 255, 0.13);
  --color-border-active: rgba(96, 165, 250, 0.4);

  /* Text */
  --color-text-primary: #f1f5f9;
  --color-text-secondary: #94a3b8;
  --color-text-tertiary: #64748b;
  --color-text-inverse: #07090f;

  /* Accent */
  --color-accent: #60a5fa;
  --color-accent-hover: #93bbfd;
  --color-accent-muted: rgba(96, 165, 250, 0.12);
  --color-accent-glow: rgba(96, 165, 250, 0.2);

  /* Semantic */
  --color-success: #4ade80;
  --color-success-muted: rgba(74, 222, 128, 0.12);
  --color-warning: #fbbf24;
  --color-warning-muted: rgba(251, 191, 36, 0.12);
  --color-error: #f87171;

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  --font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Fira Code', monospace;

  /* Spacing */
  --max-width: 1200px;
  --max-width-narrow: 880px;
  --max-width-wide: 1400px;
  --nav-height: 64px;
  --section-pad: clamp(64px, 10vw, 120px);
  --gutter: clamp(20px, 5vw, 48px);

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 60px var(--color-accent-glow);

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --duration-fast: 150ms;
  --duration-normal: 250ms;
}

/* ========================================================================
   Reset & Base
   ======================================================================== */

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-height) + 32px);
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text-secondary);
  background-color: var(--color-bg);
  overflow-x: hidden;
}

img, svg { display: inline-block; max-width: 100%; height: auto; }
input, button, textarea, select { font: inherit; color: inherit; }

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-out);
}
a:hover { color: var(--color-accent-hover); }

h1, h2, h3, h4, h5, h6 {
  line-height: 1.15;
  letter-spacing: -0.025em;
  color: var(--color-text-primary);
  font-weight: 700;
}

p { color: var(--color-text-secondary); line-height: 1.65; }
code, pre { font-family: var(--font-mono); }
code { font-size: 0.9em; color: var(--color-accent); }

::selection {
  background: var(--color-accent-muted);
  color: var(--color-text-primary);
}

:focus { outline: none; }
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ========================================================================
   Keyframe Animations
   ======================================================================== */

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

/* ========================================================================
   Navigation
   ======================================================================== */

nav {
  position: sticky;
  top: 0;
  z-index: 200;
  background: var(--color-bg-overlay);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--duration-normal) var(--ease-out),
              border-color var(--duration-normal) var(--ease-out);
}

nav.scrolled {
  border-bottom-color: rgba(255, 255, 255, 0.1);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width-wide);
  margin: 0 auto;
  padding: 0 var(--gutter);
  height: var(--nav-height);
}

.logo {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-text-primary);
  letter-spacing: -0.03em;
  text-decoration: none;
}
.logo:hover { color: var(--color-text-primary); text-decoration: none; }
.logo-dot { color: var(--color-accent); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: color var(--duration-fast) var(--ease-out);
}
.nav-links a:hover { color: var(--color-text-primary); text-decoration: none; }

.nav-cta {
  background: var(--color-accent) !important;
  color: var(--color-text-inverse) !important;
  padding: 8px 20px !important;
  border-radius: var(--radius-md) !important;
  font-weight: 600 !important;
  transition: background var(--duration-fast) var(--ease-out),
              transform var(--duration-fast) var(--ease-out) !important;
}
.nav-cta:hover {
  background: var(--color-accent-hover) !important;
  transform: translateY(-1px);
}

/* Mobile toggle */
.mobile-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.mobile-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text-secondary);
  border-radius: 2px;
  transition: transform var(--duration-fast) var(--ease-out),
              opacity var(--duration-fast) var(--ease-out);
}
.mobile-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.mobile-toggle.active span:nth-child(2) { opacity: 0; }
.mobile-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

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

.hero {
  position: relative;
  padding: clamp(80px, 12vw, 140px) var(--gutter) clamp(60px, 8vw, 100px);
  text-align: center;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  top: -40%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 600px;
  background: radial-gradient(ellipse, rgba(96, 165, 250, 0.12) 0%, rgba(96, 165, 250, 0.04) 40%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-block;
  background: var(--color-accent-muted);
  border: 1px solid rgba(96, 165, 250, 0.25);
  color: var(--color-accent);
  padding: 6px 18px;
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  margin-bottom: 28px;
  animation: fadeInUp 0.6s var(--ease-out) both;
}

.hero h1 {
  font-size: clamp(2rem, 6vw, 3.75rem);
  line-height: 1.1;
  letter-spacing: -0.035em;
  margin-bottom: 24px;
  animation: fadeInUp 0.6s var(--ease-out) 0.1s both;
}
.hero h1 em {
  font-style: normal;
  background: linear-gradient(135deg, var(--color-accent), #a78bfa, #f472b6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: clamp(1rem, 2.5vw, 1.2rem);
  max-width: 640px;
  margin: 0 auto 40px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  animation: fadeInUp 0.6s var(--ease-out) 0.2s both;
}

/* ========================================================================
   Signup Form
   ======================================================================== */

.signup-form {
  animation: fadeInUp 0.6s var(--ease-out) 0.3s both;
}

.signup-row {
  display: flex;
  gap: 10px;
  max-width: 500px;
  margin: 0 auto;
}

.signup-row input {
  flex: 1;
  padding: 14px 18px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-bg-surface);
  color: var(--color-text-primary);
  font-size: 1rem;
  outline: none;
  transition: border-color var(--duration-fast) var(--ease-out),
              box-shadow var(--duration-fast) var(--ease-out);
}
.signup-row input::placeholder { color: var(--color-text-tertiary); }
.signup-row input:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-muted);
}
.signup-row input:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.signup-row button {
  background: var(--color-accent);
  color: var(--color-text-inverse);
  border: none;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
  transition: background var(--duration-fast) var(--ease-out),
              transform var(--duration-fast) var(--ease-out),
              box-shadow var(--duration-fast) var(--ease-out);
}
.signup-row button:hover {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 20px var(--color-accent-glow);
}
.signup-row button:active { transform: translateY(0); }
.signup-row button:disabled {
  cursor: not-allowed;
  transform: none;
}
.signup-row button.signup-success {
  background: var(--color-success);
}

.signup-note {
  text-align: center;
  margin-top: 14px;
  font-size: 0.8125rem;
  color: var(--color-text-tertiary);
}

/* ========================================================================
   Integration Logos
   ======================================================================== */

.integrations {
  margin-top: 56px;
  animation: fadeInUp 0.6s var(--ease-out) 0.4s both;
}

.integrations-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-tertiary);
  margin-bottom: 16px;
  font-weight: 600;
}

.integration-logos {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}

.int-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: border-color var(--duration-fast) var(--ease-out),
              color var(--duration-fast) var(--ease-out),
              background var(--duration-fast) var(--ease-out);
}
.int-badge:hover {
  border-color: var(--color-border-hover);
  color: var(--color-text-primary);
  background: var(--color-bg-surface-hover);
}
.int-badge svg { flex-shrink: 0; }

/* ========================================================================
   Social Proof Bar
   ======================================================================== */

.proof-bar {
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-raised);
  padding: 32px var(--gutter);
}

.proof-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  text-align: center;
}

.proof-headline {
  font-size: 0.875rem;
  color: var(--color-text-tertiary);
  margin-bottom: 24px;
  letter-spacing: 0.02em;
}
.proof-headline strong {
  color: var(--color-text-primary);
}

.proof-stats {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 40px;
  flex-wrap: wrap;
}

.proof-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.proof-num {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--color-text-primary);
  letter-spacing: -0.03em;
}

.proof-label {
  font-size: 0.8125rem;
  color: var(--color-text-tertiary);
  font-weight: 500;
}

.proof-divider {
  width: 1px;
  height: 40px;
  background: var(--color-border);
}

/* ========================================================================
   Section Layout
   ======================================================================== */

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto clamp(40px, 6vw, 64px);
}

.section-header h2 {
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  margin-bottom: 12px;
}

.section-header p {
  font-size: 1.0625rem;
  color: var(--color-text-secondary);
}

.section-header em {
  font-style: normal;
  color: var(--color-accent);
}

/* ========================================================================
   Product Demo
   ======================================================================== */

.demo-section {
  padding: var(--section-pad) var(--gutter);
}

.demo-inner {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: clamp(32px, 5vw, 64px);
  align-items: center;
  max-width: var(--max-width);
  margin: 0 auto;
}

.demo-text h2 {
  font-size: clamp(1.5rem, 3.5vw, 2.25rem);
  margin-bottom: 20px;
}
.demo-text h2 code {
  font-size: 0.85em;
  background: var(--color-accent-muted);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
}
.demo-text > p {
  margin-bottom: 16px;
  font-size: 1.0625rem;
}
.demo-text > p code {
  background: var(--color-accent-muted);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 0.875em;
}

.demo-features {
  list-style: none;
  margin-top: 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.demo-features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}
.demo-features li svg { flex-shrink: 0; margin-top: 2px; }

/* Terminal */
.demo-terminal {
  background: #0a0e18;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5),
              0 0 0 1px rgba(255, 255, 255, 0.04),
              inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.terminal-chrome {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

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

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.dot-red { background: #ff5f57; }
.dot-yellow { background: #ffbd2e; }
.dot-green { background: #28c840; }

.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-tertiary);
}

.terminal-body {
  padding: 20px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.85;
  overflow-x: auto;
}

.term-line {
  white-space: nowrap;
}

.term-blank { height: 8px; }

.term-line-divider {
  height: 1px;
  background: rgba(255, 255, 255, 0.06);
  margin: 4px 0;
}

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

.term-cmd {
  color: var(--color-text-primary);
  font-weight: 600;
}

.term-muted { color: #5a6578; }
.term-white { color: var(--color-text-primary); }
.term-success { color: var(--color-success); font-weight: 600; }
.term-warn { color: var(--color-warning); font-weight: 600; }
.term-url { color: #f59e0b; text-decoration: underline; text-underline-offset: 2px; }
.term-time { color: var(--color-text-tertiary); font-size: 0.75rem; margin-left: 8px; }

.term-badge-fw {
  display: inline-block;
  padding: 0 6px;
  background: rgba(74, 222, 128, 0.1);
  color: var(--color-success);
  border-radius: 3px;
  font-size: 0.6875rem;
  margin-left: 6px;
  font-weight: 600;
}

.term-dots-anim {
  color: var(--color-text-tertiary);
  letter-spacing: 2px;
}

.bold { font-weight: 700; }

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

.features-section {
  padding: var(--section-pad) var(--gutter);
  background: var(--color-bg-raised);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.features-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.feature-card {
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: transform var(--duration-normal) var(--ease-out),
              border-color var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
}
.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-border-hover);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.feature-icon {
  margin-bottom: 20px;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.feature-card h3 {
  font-size: 1.125rem;
  margin-bottom: 10px;
  font-weight: 600;
}

.feature-card p {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.65;
  margin-bottom: 16px;
}

.framework-logos {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: auto;
}

.fw-badge {
  display: inline-block;
  padding: 3px 10px;
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-tertiary);
  font-family: var(--font-mono);
  transition: border-color var(--duration-fast), color var(--duration-fast);
}
.fw-badge:hover {
  border-color: var(--color-border-hover);
  color: var(--color-text-secondary);
}

.feature-detail {
  margin-top: 4px;
  padding: 8px 12px;
  background: rgba(0, 0, 0, 0.3);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--color-text-tertiary);
  overflow-x: auto;
}
.feature-detail code {
  color: var(--color-accent);
  font-size: inherit;
  background: none;
  padding: 0;
}

.detail-muted { color: var(--color-text-tertiary); font-size: 0.75rem; }
.detail-highlight {
  color: var(--color-warning);
  font-weight: 600;
}
.detail-success {
  color: var(--color-success);
  font-weight: 600;
}

/* ========================================================================
   Agents Section (Built for agents, safe for teams)
   ======================================================================== */

.agents-section {
  padding: var(--section-pad) var(--gutter);
}

.agents-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

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

.agents-col {
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
}

.agents-col-gov {
  background: rgba(74, 222, 128, 0.02);
  border-color: rgba(74, 222, 128, 0.1);
}

.agents-col-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 28px;
}

.agents-col-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-muted);
  border-radius: var(--radius-md);
}

.agents-col-icon-gov {
  background: var(--color-success-muted);
}

.agents-col-header h3 {
  font-size: 1.25rem;
  font-weight: 700;
}

.agents-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.agents-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.agents-check {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-muted);
  border-radius: 50%;
  margin-top: 2px;
}

.agents-check-gov {
  background: var(--color-success-muted);
}

.agents-list li div {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.agents-list li strong {
  font-size: 0.9375rem;
  color: var(--color-text-primary);
  font-weight: 600;
}

.agents-list li span {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

.agents-list li code {
  font-size: 0.825rem;
  background: var(--color-accent-muted);
  padding: 0 5px;
  border-radius: 3px;
}

/* ========================================================================
   Use Cases
   ======================================================================== */

.use-cases-section {
  padding: var(--section-pad) var(--gutter);
  background: var(--color-bg-raised);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.use-cases-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.use-cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.use-case-card {
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 40px 28px;
  text-align: center;
  transition: transform var(--duration-normal) var(--ease-out),
              border-color var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
}
.use-case-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-border-hover);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.use-case-featured {
  border-color: rgba(167, 139, 250, 0.2);
  background: rgba(167, 139, 250, 0.03);
}
.use-case-featured:hover {
  border-color: rgba(167, 139, 250, 0.35);
}

.use-case-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  margin: 0 auto 20px;
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.use-case-persona {
  display: inline-block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  font-weight: 700;
  margin-bottom: 10px;
}

.use-case-card h3 {
  font-size: 1.125rem;
  margin-bottom: 12px;
}

.use-case-card p {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.65;
}

.use-case-card code {
  font-size: 0.825rem;
  background: var(--color-accent-muted);
  padding: 1px 5px;
  border-radius: 3px;
}

/* ========================================================================
   Comparison Table
   ======================================================================== */

.comparison-section {
  padding: var(--section-pad) var(--gutter);
}

.comparison-inner {
  max-width: var(--max-width-narrow);
  margin: 0 auto;
}

.comparison-table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
}

.comparison-table th,
.comparison-table td {
  padding: 14px 20px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.comparison-table thead th {
  background: var(--color-bg-surface);
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-tertiary);
}

.comparison-table tbody tr:last-child td { border-bottom: none; }

.comparison-table tbody tr {
  transition: background var(--duration-fast);
}
.comparison-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.02);
}

.comparison-table td:first-child {
  color: var(--color-text-primary);
  font-weight: 500;
}

.comp-us { text-align: center; min-width: 100px; }
.comp-them { text-align: center; min-width: 100px; }

.comp-yes {
  color: var(--color-success);
  font-weight: 600;
  font-size: 0.875rem;
}

.comp-no {
  color: #ef4444;
  font-weight: 500;
  font-size: 0.875rem;
}

.comp-partial {
  color: var(--color-warning);
  font-weight: 500;
  font-size: 0.875rem;
}

/* ========================================================================
   Metrics Section
   ======================================================================== */

.metrics-section {
  padding: 56px var(--gutter);
  background: var(--color-bg-raised);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.metrics-inner {
  display: flex;
  justify-content: center;
  gap: 20px;
  max-width: var(--max-width);
  margin: 0 auto;
  flex-wrap: wrap;
}

.metric-card {
  flex: 1 1 200px;
  max-width: 240px;
  text-align: center;
  padding: 28px 20px;
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.metric-number {
  display: block;
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--color-text-primary);
  letter-spacing: -0.03em;
  margin-bottom: 6px;
}

.metric-label {
  display: block;
  font-size: 0.8125rem;
  color: var(--color-text-tertiary);
  font-weight: 500;
}

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

.pricing-section {
  padding: var(--section-pad) var(--gutter);
}

.pricing-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  align-items: start;
}

.pricing-card {
  position: relative;
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  text-align: center;
  transition: transform var(--duration-normal) var(--ease-out),
              border-color var(--duration-normal) var(--ease-out);
}
.pricing-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-border-hover);
}

.pricing-card-featured {
  border-color: var(--color-accent);
  background: rgba(96, 165, 250, 0.03);
  box-shadow: 0 0 0 1px var(--color-accent), 0 20px 60px rgba(96, 165, 250, 0.08);
  transform: scale(1.03);
}
.pricing-card-featured:hover {
  transform: scale(1.03) translateY(-4px);
  border-color: var(--color-accent-hover);
}

.pricing-popular {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-accent);
  color: var(--color-text-inverse);
  padding: 4px 16px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  white-space: nowrap;
}

.pricing-tier {
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-tertiary);
  margin-bottom: 8px;
}

.pricing-price {
  font-size: 3rem;
  font-weight: 800;
  color: var(--color-text-primary);
  letter-spacing: -0.04em;
  margin-bottom: 8px;
  line-height: 1;
}

.pricing-currency {
  font-size: 1.5rem;
  vertical-align: super;
  font-weight: 600;
  opacity: 0.7;
}

.pricing-period {
  font-size: 1rem;
  color: var(--color-text-tertiary);
  font-weight: 400;
}

.pricing-desc {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  margin-bottom: 28px;
  line-height: 1.5;
}

.pricing-features {
  list-style: none;
  text-align: left;
  margin-bottom: 32px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.pricing-features li {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  padding-left: 24px;
  position: relative;
  line-height: 1.5;
}

.pricing-features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 6px;
  width: 14px;
  height: 14px;
  background-image: url("data:image/svg+xml,%3Csvg width='14' height='14' viewBox='0 0 14 14' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M3 7l3 3 5-5' stroke='%234ade80' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
}

.pricing-cta {
  display: block;
  padding: 12px 24px;
  background: var(--color-bg-surface-hover);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
  font-weight: 600;
  text-align: center;
  transition: background var(--duration-fast) var(--ease-out),
              border-color var(--duration-fast) var(--ease-out),
              transform var(--duration-fast) var(--ease-out);
  text-decoration: none;
}
.pricing-cta:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--color-border-hover);
  transform: translateY(-1px);
  color: var(--color-text-primary);
  text-decoration: none;
}

.pricing-cta-featured {
  background: var(--color-accent);
  color: var(--color-text-inverse);
  border-color: var(--color-accent);
}
.pricing-cta-featured:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: var(--color-text-inverse);
}

.pricing-footer-note {
  text-align: center;
  margin-top: 28px;
  font-size: 0.875rem;
}
.pricing-footer-note a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ========================================================================
   Final CTA
   ======================================================================== */

.final-cta-section {
  position: relative;
  padding: var(--section-pad) var(--gutter);
  text-align: center;
  overflow: hidden;
  background: radial-gradient(ellipse at 50% 100%, rgba(96, 165, 250, 0.08) 0%, transparent 70%);
}

.final-cta-inner {
  position: relative;
  z-index: 1;
  max-width: 600px;
  margin: 0 auto;
}

.final-cta-inner h2 {
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  margin-bottom: 16px;
}

.final-cta-inner > p {
  font-size: 1.0625rem;
  color: var(--color-text-secondary);
  margin-bottom: 36px;
}

/* ========================================================================
   Share Section
   ======================================================================== */

.share-section {
  padding: 40px var(--gutter);
  border-top: 1px solid var(--color-border);
}

.share-inner {
  max-width: var(--max-width-narrow);
  margin: 0 auto;
  text-align: center;
}

.share-heading {
  font-size: 0.875rem;
  color: var(--color-text-tertiary);
  margin-bottom: 16px;
}

.share-buttons {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}

.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: border-color var(--duration-fast) var(--ease-out),
              color var(--duration-fast) var(--ease-out),
              background var(--duration-fast) var(--ease-out);
}
.share-btn:hover {
  border-color: var(--color-border-hover);
  color: var(--color-text-primary);
  background: var(--color-bg-surface-hover);
}
.share-btn svg { flex-shrink: 0; }

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

.site-footer {
  padding: 64px var(--gutter) 32px;
  border-top: 1px solid var(--color-border);
  background: var(--color-bg-raised);
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(4, 1fr);
  gap: 40px;
  margin-bottom: 48px;
}

.footer-brand .logo {
  font-size: 1.25rem;
  display: inline-block;
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 0.9375rem;
  color: var(--color-text-tertiary);
  line-height: 1.5;
}

.footer-col h4 {
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-tertiary);
  margin-bottom: 16px;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col a {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  transition: color var(--duration-fast);
}
.footer-col a:hover {
  color: var(--color-text-primary);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
}

.footer-bottom p {
  font-size: 0.8125rem;
  color: var(--color-text-tertiary);
}

.footer-social {
  display: flex;
  gap: 16px;
}

.footer-social a {
  color: var(--color-text-tertiary);
  transition: color var(--duration-fast);
}
.footer-social a:hover {
  color: var(--color-text-primary);
}

/* ========================================================================
   Back to Top
   ======================================================================== */

.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-raised);
  border: 1px solid var(--color-border);
  border-radius: 50%;
  color: var(--color-text-secondary);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity var(--duration-normal) var(--ease-out),
              visibility var(--duration-normal),
              transform var(--duration-normal) var(--ease-out),
              color var(--duration-fast),
              border-color var(--duration-fast);
  z-index: 100;
  text-decoration: none;
  box-shadow: var(--shadow-md);
}
.back-to-top:hover {
  color: var(--color-text-primary);
  border-color: var(--color-border-hover);
}
.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

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

@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .demo-inner {
    grid-template-columns: 1fr;
  }

  .demo-terminal {
    order: -1;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 768px) {
  .mobile-toggle {
    display: flex;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--color-bg-overlay);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--color-border);
    padding: 20px var(--gutter);
    gap: 16px;
  }

  .nav-links.nav-open {
    display: flex;
  }

  .nav-cta {
    text-align: center;
    width: 100%;
    display: block !important;
  }

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

  .use-cases-grid {
    grid-template-columns: 1fr;
  }

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

  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
  }

  .pricing-card-featured {
    transform: none;
  }
  .pricing-card-featured:hover {
    transform: translateY(-4px);
  }

  .proof-stats {
    gap: 20px;
  }

  .proof-divider {
    display: none;
  }

  .proof-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    text-align: center;
  }

  .signup-row {
    flex-direction: column;
  }

  .signup-row button {
    width: 100%;
  }

  .hero h1 br { display: none; }

  .integration-logos {
    gap: 8px;
  }

  .int-badge {
    font-size: 0.75rem;
    padding: 5px 10px;
  }

  .comparison-table th,
  .comparison-table td {
    padding: 10px 14px;
    font-size: 0.875rem;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }

  .metrics-inner {
    gap: 12px;
  }

  .metric-card {
    flex: 1 1 140px;
    padding: 20px 12px;
  }

  .metric-number {
    font-size: 1.75rem;
  }

  .back-to-top {
    bottom: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
  }
}

@media (max-width: 480px) {
  .proof-stats {
    grid-template-columns: 1fr 1fr;
  }

  .hero-badge {
    font-size: 0.75rem;
    padding: 5px 14px;
  }

  .share-buttons {
    flex-direction: column;
    align-items: center;
  }

  .share-btn {
    width: 100%;
    justify-content: center;
  }
}

/* ========================================================================
   Print
   ======================================================================== */

@media print {
  nav,
  .hero-glow,
  .back-to-top,
  .share-section,
  .signup-form,
  .mobile-toggle {
    display: none !important;
  }

  body {
    background: white;
    color: #1a1a1a;
  }

  * {
    color: #1a1a1a !important;
    background: transparent !important;
    border-color: #ddd !important;
    box-shadow: none !important;
  }
}