/* ===================================
   CSS Custom Properties (Design Tokens)
   =================================== */
:root {
    /* Colors - light theme with AWS Console yellow accents */
    --color-bg-primary: #ffffff;
    --color-bg-secondary: #f8fafc;
    --color-bg-tertiary: #f1f5f9;
    --color-text-primary: #0f172a;
    --color-text-secondary: #475569;
    --color-text-muted: #64748b;
    --color-accent-primary: #f59e0b;
    --color-accent-secondary: #d97706;
    --color-accent-green: #059669;
    --color-border: #e2e8f0;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
    --gradient-subtle: linear-gradient(135deg, rgba(251, 191, 36, 0.1) 0%, rgba(245, 158, 11, 0.1) 100%);

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

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.2);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
}

/* ===================================
   Reset & Base Styles
   =================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===================================
   Typography
   =================================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-2xl); }

p {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-secondary);
}

a {
    color: var(--color-accent-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-accent-secondary);
}

/* ===================================
   Layout Components
   =================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-header h2 {
    margin-bottom: var(--spacing-sm);
}

.section-header p {
    font-size: var(--font-size-lg);
    color: var(--color-text-muted);
}

/* ===================================
   Navigation
   =================================== */
.nav {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    padding: var(--spacing-md) 0;
    box-shadow: var(--shadow-sm);
}

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

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 600;
    font-size: var(--font-size-lg);
}

.logo {
    font-size: var(--font-size-2xl);
}

.nav-links {
    display: flex;
    gap: var(--spacing-lg);
    list-style: none;
    align-items: center;
}

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

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

/* ===================================
   Buttons
   =================================== */
.btn-primary,
.btn-secondary,
.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: var(--font-size-base);
    cursor: pointer;
    transition: all var(--transition-base);
    border: none;
    text-decoration: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.btn-primary.large {
    padding: 1rem 2rem;
    font-size: var(--font-size-lg);
}

.btn-secondary {
    background: var(--color-bg-secondary);
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    background: var(--color-bg-tertiary);
    border-color: var(--color-accent-primary);
}

.btn-outline {
    background: transparent;
    color: var(--color-text-primary);
    border: 2px solid var(--color-border);
}

.btn-outline:hover {
    border-color: var(--color-accent-primary);
    background: rgba(251, 191, 36, 0.1);
}

.arrow {
    font-size: var(--font-size-xl);
    transition: transform var(--transition-base);
}

.btn-primary:hover .arrow {
    transform: translateX(4px);
}

/* ===================================
   Hero Section
   =================================== */
.hero {
    padding: var(--spacing-3xl) 0;
    background:
        radial-gradient(circle at 20% 50%, rgba(251, 191, 36, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(245, 158, 11, 0.08) 0%, transparent 50%),
        linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-3xl);
}

.hero-title {
    font-size: var(--font-size-5xl);
    margin-bottom: var(--spacing-md);
    line-height: 1.1;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.6;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-bottom: var(--spacing-lg);
}

.hero-waitlist {
    margin-bottom: var(--spacing-2xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-meta {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.5rem 1rem;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

/* ===================================
   Browser Mockup & Command Palette Preview
   =================================== */
.hero-visual {
    max-width: 900px;
    margin: 0 auto;
}

.browser-mockup {
    background: var(--color-bg-secondary);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--color-border);
}

.browser-bar {
    background: var(--color-bg-tertiary);
    padding: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.browser-dots {
    display: flex;
    gap: 0.5rem;
}

.browser-dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--color-border);
}

.browser-address {
    flex: 1;
    background: var(--color-bg-primary);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.browser-content {
    padding: var(--spacing-3xl) var(--spacing-xl);
    background: linear-gradient(180deg, #0f172a 0%, #1e293b 100%);
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.command-palette-preview {
    width: 100%;
    max-width: 600px;
    background: #1e293b;
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.3);
    border: 1px solid #334155;
}

.search-box {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: #334155;
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    border: 2px solid #f59e0b;
}

.search-icon {
    font-size: var(--font-size-xl);
}

.search-box input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: #f1f5f9;
    font-size: var(--font-size-base);
    font-family: var(--font-family);
}

.search-box kbd {
    background: #475569;
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-family: var(--font-family);
    border: 1px solid #64748b;
    color: #f1f5f9;
}

.results-preview {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.result-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast);
}

.result-item.active {
    background: #334155;
}

.service-icon {
    font-size: var(--font-size-2xl);
}

.result-text {
    flex: 1;
}

.result-title {
    font-weight: 600;
    color: #f1f5f9;
}

.result-subtitle {
    font-size: var(--font-size-sm);
    color: #94a3b8;
}

/* ===================================
   Features Section
   =================================== */
.features {
    padding: var(--spacing-3xl) 0;
    background: var(--color-bg-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.feature-card {
    padding: var(--spacing-xl);
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-accent-primary);
    box-shadow: var(--shadow-xl);
}

.feature-icon {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-md);
}

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

.feature-card p {
    margin-bottom: 0;
    color: var(--color-text-muted);
}

.feature-card kbd {
    background: var(--color-bg-secondary);
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    border: 1px solid var(--color-border);
    font-family: var(--font-family);
}

/* ===================================
   How It Works Section
   =================================== */
.how-it-works {
    padding: var(--spacing-3xl) 0;
}

.steps {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

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

.step-number {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-2xl);
    font-weight: 700;
}

.step-content h3 {
    margin-bottom: var(--spacing-sm);
}

.step-content p {
    margin-bottom: 0;
}

/* ===================================
   Installation Section
   =================================== */
.install {
    padding: var(--spacing-3xl) 0;
    background: var(--gradient-subtle);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.install-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.install-content h2 {
    margin-bottom: var(--spacing-md);
}

.install-content > p {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xl);
}

.install-options {
    margin-bottom: var(--spacing-md);
}

.install-note p {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin: 0;
}

/* ===================================
   Footer
   =================================== */
.footer {
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
    gap: var(--spacing-lg);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 600;
}

.footer-links {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

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

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

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

.footer-bottom p {
    margin: 0;
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 768px) {
    :root {
        --font-size-5xl: 2rem;
        --font-size-4xl: 1.75rem;
        --font-size-3xl: 1.5rem;
    }

    .hero-title {
        font-size: var(--font-size-4xl);
    }

    .hero-subtitle {
        font-size: var(--font-size-lg);
    }

    .hero-cta {
        flex-direction: column;
        align-items: stretch;
    }

    .nav-links {
        display: none;
    }

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

    .step {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }

    .browser-content {
        padding: var(--spacing-lg);
    }
}

@media (max-width: 480px) {
    .hero-meta {
        flex-direction: column;
        align-items: stretch;
    }

    .badge {
        justify-content: center;
    }
}