/* EZCorp Design System - EZ AI Pipeline Landing Page */

/* ============================================
   CSS Variables (Design Tokens)
   ============================================ */
:root {
  /* Colors - Light Mode */
  --color-bg: #FAFAFA;
  --color-bg-secondary: #F5F5F5;
  --color-fg: #171717;
  --color-fg-muted: #737373;
  --color-border: #E5E5E5;
  --color-hover: #F5F5F5;

  /* Accent Colors */
  --color-accent: #F4C430;
  --color-accent-hover: #D88420;
  --color-blue: #0066FF;
  --color-green: #00CC66;
  --color-purple: #8B5CF6;
  --color-error: #EF4444;

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

  /* Font Sizes */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.25rem;
  --text-xl: 1.5rem;
  --text-2xl: 1.75rem;
  --text-3xl: 2.25rem;
  --text-4xl: 3rem;

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-xl: 12px;

  /* Transitions */
  --transition-fast: 100ms ease-in-out;
  --transition-normal: 150ms ease-in-out;
  --transition-slow: 200ms ease-in-out;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);

  /* Layout */
  --max-width: 1280px;
}

/* Dark Mode */
@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #0A0A0A;
    --color-bg-secondary: #1A1A1A;
    --color-fg: #EDEDED;
    --color-fg-muted: #737373;
    --color-border: #262626;
    --color-hover: #1A1A1A;
  }
}

/* ============================================
   Reset & Base Styles
   ============================================ */
*, *::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: var(--text-sm);
  line-height: 1.5;
  color: var(--color-fg);
  background-color: var(--color-bg);
}

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

img {
  max-width: 100%;
  height: auto;
}

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 { font-size: var(--text-3xl); }
h2 { font-size: var(--text-2xl); }
h3 { font-size: var(--text-lg); }

@media (min-width: 768px) {
  h1 { font-size: var(--text-4xl); }
  h2 { font-size: var(--text-3xl); }
}

/* ============================================
   Layout
   ============================================ */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

@media (min-width: 768px) {
  .container {
    padding: 0 var(--space-lg);
  }
}

section {
  padding: var(--space-3xl) 0;
}

@media (max-width: 767px) {
  section {
    padding: var(--space-2xl) 0;
  }
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto var(--space-3xl);
}

.section-subtitle {
  color: var(--color-fg-muted);
  margin-top: var(--space-md);
  font-size: var(--text-base);
}

/* ============================================
   Navigation
   ============================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(8px);
  background: rgba(var(--color-bg), 0.9);
}

@media (prefers-color-scheme: dark) {
  .nav {
    background: rgba(10, 10, 10, 0.9);
  }
}

@media (prefers-color-scheme: light) {
  .nav {
    background: rgba(250, 250, 250, 0.9);
  }
}

.nav-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.logo {
  font-weight: 600;
  font-size: var(--text-base);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.logo-ez {
  color: var(--color-accent);
  font-weight: 700;
}

.logo-icon {
  flex-shrink: 0;
}

.nav-links {
  display: none;
  align-items: center;
  gap: var(--space-lg);
}

.nav-links a {
  font-size: var(--text-sm);
  color: var(--color-fg-muted);
  transition: color var(--transition-normal);
}

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

@media (min-width: 768px) {
  .nav-links {
    display: flex;
  }
}

.mobile-menu-btn {
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
}

.mobile-menu-btn span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-fg);
  transition: var(--transition-normal);
}

@media (min-width: 768px) {
  .mobile-menu-btn {
    display: none;
  }
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: var(--text-sm);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-normal);
  border: none;
  text-decoration: none;
}

.btn:active {
  transform: scale(0.98);
}

.btn-sm {
  height: 32px;
  padding: 0 var(--space-md);
  font-size: var(--text-xs);
}

.btn-md {
  height: 40px;
  padding: 0 var(--space-lg);
}

.btn-lg {
  height: 48px;
  padding: 0 var(--space-xl);
  font-size: var(--text-base);
}

.btn-primary {
  background: var(--color-accent);
  color: #0A0A0A;
}

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

.btn-secondary {
  background: transparent;
  color: var(--color-fg);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  background: var(--color-hover);
  border-color: var(--color-fg-muted);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
  padding-top: calc(64px + var(--space-3xl));
  padding-bottom: var(--space-2xl);
  text-align: center;
}

.hero-badge {
  margin-bottom: var(--space-lg);
}

.badge {
  display: inline-block;
  padding: var(--space-xs) var(--space-md);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: 100px;
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-fg-muted);
}

.hero-title {
  font-size: var(--text-3xl);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: var(--space-lg);
}

@media (min-width: 768px) {
  .hero-title {
    font-size: var(--text-4xl);
  }
}

.hero-title .highlight {
  color: var(--color-accent);
}

.hero-subtitle {
  font-size: var(--text-base);
  color: var(--color-fg-muted);
  max-width: 600px;
  margin: 0 auto var(--space-xl);
  line-height: 1.6;
}

@media (min-width: 768px) {
  .hero-subtitle {
    font-size: var(--text-lg);
  }
}

.hero-cta {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  justify-content: center;
  align-items: center;
}

@media (min-width: 480px) {
  .hero-cta {
    flex-direction: row;
  }
}

.hero-note {
  margin-top: var(--space-lg);
  font-size: var(--text-xs);
  color: var(--color-fg-muted);
}

/* ============================================
   Terminal Demo
   ============================================ */
.terminal-section {
  padding: 0 0 var(--space-3xl);
}

.terminal {
  max-width: 800px;
  margin: 0 auto;
  background: #1A1A1A;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.terminal-header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  background: #262626;
  border-bottom: 1px solid #333;
}

.terminal-dots {
  display: flex;
  gap: var(--space-sm);
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.dot.red { background: #FF5F56; }
.dot.yellow { background: #FFBD2E; }
.dot.green { background: #27CA40; }

.terminal-title {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: #737373;
}

.terminal-body {
  padding: var(--space-lg);
  overflow-x: auto;
}

.terminal-body pre {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  line-height: 1.6;
  color: #EDEDED;
}

@media (min-width: 768px) {
  .terminal-body pre {
    font-size: var(--text-sm);
  }
}

.terminal-body .prompt { color: var(--color-accent); }
.terminal-body .success { color: var(--color-green); }
.terminal-body .muted { color: #737373; }
.terminal-body .stage { color: var(--color-blue); }
.terminal-body .spinner { color: var(--color-accent); }
.terminal-body .check { color: var(--color-green); }

/* ============================================
   Features Section
   ============================================ */
.features {
  background: var(--color-bg-secondary);
}

.features-grid {
  display: grid;
  gap: var(--space-lg);
}

@media (min-width: 768px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.feature-card {
  padding: var(--space-lg);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-slow);
}

.feature-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: var(--color-bg-secondary);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
  color: var(--color-accent);
}

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

.feature-card p {
  color: var(--color-fg-muted);
  font-size: var(--text-sm);
  line-height: 1.6;
}

/* ============================================
   How It Works Section
   ============================================ */
.steps {
  max-width: 640px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.step {
  display: flex;
  gap: var(--space-lg);
  align-items: flex-start;
}

.step-number {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent);
  color: #0A0A0A;
  font-weight: 700;
  border-radius: 50%;
}

.step-content {
  flex: 1;
}

.step-content h3 {
  margin-bottom: var(--space-md);
}

.code-block {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow-x: auto;
}

.code-block code {
  flex: 1;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  white-space: nowrap;
}

.copy-btn {
  flex-shrink: 0;
  padding: var(--space-xs) var(--space-sm);
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  color: var(--color-fg-muted);
  cursor: pointer;
  transition: all var(--transition-normal);
}

.copy-btn:hover {
  background: var(--color-hover);
  color: var(--color-fg);
}

.copy-btn.copied {
  background: var(--color-green);
  border-color: var(--color-green);
  color: #0A0A0A;
}

/* ============================================
   Code Example Section
   ============================================ */
.code-example {
  background: var(--color-bg-secondary);
}

.code-showcase {
  max-width: 800px;
  margin: 0 auto;
}

.code-window {
  background: #1A1A1A;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.code-header {
  padding: var(--space-md);
  background: #262626;
  border-bottom: 1px solid #333;
}

.code-filename {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: #737373;
}

.code-content {
  padding: var(--space-lg);
  margin: 0;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  line-height: 1.6;
  color: #EDEDED;
}

@media (min-width: 768px) {
  .code-content {
    font-size: var(--text-sm);
  }
}

.code-content .keyword { color: #C678DD; }
.code-content .string { color: #98C379; }
.code-content .type { color: #E5C07B; }
.code-content .comment { color: #5C6370; font-style: italic; }

/* ============================================
   Providers Section
   ============================================ */
.provider-logos {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  max-width: 800px;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .provider-logos {
    flex-direction: row;
    justify-content: center;
  }
}

.provider {
  flex: 1;
  text-align: center;
  padding: var(--space-lg);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.provider-name {
  display: block;
  font-weight: 600;
  font-size: var(--text-lg);
  margin-bottom: var(--space-sm);
}

.provider-models {
  display: block;
  font-size: var(--text-sm);
  color: var(--color-fg-muted);
}

/* ============================================
   Get Started Section
   ============================================ */
.get-started {
  background: var(--color-bg-secondary);
}

.get-started-content {
  max-width: 640px;
  margin: 0 auto var(--space-xl);
}

.install-box {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.install-step {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.install-label {
  font-size: var(--text-sm);
  color: var(--color-fg-muted);
}

.cta-buttons {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  justify-content: center;
  align-items: center;
}

@media (min-width: 480px) {
  .cta-buttons {
    flex-direction: row;
  }
}

/* ============================================
   Footer
   ============================================ */
.footer {
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
  padding: var(--space-3xl) 0 var(--space-xl);
}

.footer-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xl);
}

@media (min-width: 768px) {
  .footer-content {
    flex-direction: row;
    justify-content: space-between;
  }
}

.footer-brand {
  max-width: 280px;
}

.footer-brand .logo {
  margin-bottom: var(--space-md);
}

.footer-tagline {
  font-size: var(--text-lg);
  color: var(--color-fg-muted);
  margin-bottom: var(--space-sm);
}

.footer-note {
  font-size: var(--text-sm);
  color: var(--color-fg-muted);
}

.footer-note a {
  color: var(--color-accent);
  transition: color var(--transition-normal);
}

.footer-note a:hover {
  color: var(--color-accent-hover);
}

.footer-links {
  display: grid;
  gap: var(--space-xl);
  grid-template-columns: repeat(2, 1fr);
}

@media (min-width: 768px) {
  .footer-links {
    grid-template-columns: repeat(3, 1fr);
  }
}

.footer-column h4 {
  font-size: var(--text-sm);
  font-weight: 600;
  margin-bottom: var(--space-md);
}

.footer-column a {
  display: block;
  font-size: var(--text-sm);
  color: var(--color-fg-muted);
  padding: var(--space-xs) 0;
  transition: color var(--transition-normal);
}

.footer-column a:hover {
  color: var(--color-fg);
}

.footer-bottom {
  margin-top: var(--space-3xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.footer-bottom p {
  font-size: var(--text-xs);
  color: var(--color-fg-muted);
}

/* ============================================
   Utility Classes
   ============================================ */
.text-center { text-align: center; }
.text-muted { color: var(--color-fg-muted); }