/* ============================================
   Ambervault Design System
   ============================================ */

/* CSS Variables */
:root {
    --color-primary: #0A84FF;
    --color-primary-dark: #0066CC;
    --color-background: #0B0C10;
    --color-surface: #111318;
    --color-text-primary: #F5F7FA;
    --color-text-secondary: #C7CFD9;
    --color-accent: #FFD166;
    
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Inter, Arial, sans-serif;
    
    --max-width: 1200px;
    --padding-mobile: 24px;
    --padding-desktop: 32px;
    
    --transition: 0.2s ease;
}

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

html {
    scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

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

/* Skip Link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--color-primary);
    color: var(--color-text-primary);
    padding: 8px 16px;
    text-decoration: none;
    z-index: 100;
}

.skip-link:focus {
    top: 0;
}

/* Container */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--padding-mobile);
}

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

/* Header */
.header {
    background-color: var(--color-surface);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(10px);
    background-color: rgba(17, 19, 24, 0.9);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 0;
}

.logo {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text-primary);
    text-decoration: none;
    transition: color var(--transition);
}

.logo:hover,
.logo:focus {
    color: var(--color-primary);
    outline: none;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 32px;
    align-items: center;
}

.nav-link {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color var(--transition);
    position: relative;
}

.nav-link:hover,
.nav-link:focus {
    color: var(--color-text-primary);
    outline: none;
}

.nav-link.active {
    color: var(--color-primary);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--color-primary);
}

@media (max-width: 767px) {
    .nav-list {
        gap: 20px;
    }
    
    .nav-link {
        font-size: 0.9rem;
    }
}

/* Hero Section */
.hero {
    padding: 80px 0;
    text-align: center;
    background: linear-gradient(135deg, rgba(10, 132, 255, 0.1) 0%, rgba(17, 19, 24, 0.5) 100%);
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    margin-bottom: 24px;
    line-height: 1.2;
    color: var(--color-text-primary);
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2vw, 1.25rem);
    color: var(--color-text-secondary);
    max-width: 700px;
    margin: 0 auto 32px;
    line-height: 1.6;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 14px 32px;
    background-color: var(--color-primary);
    color: var(--color-text-primary);
    text-decoration: none;
    border-radius: 6px;
    font-weight: 500;
    font-size: 1rem;
    transition: all var(--transition);
    border: none;
    cursor: pointer;
    font-family: inherit;
}

.btn:hover,
.btn:focus {
    background-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(10, 132, 255, 0.3);
    outline: none;
}

.btn:active {
    transform: translateY(0);
}

.btn-small {
    padding: 10px 24px;
    font-size: 0.9rem;
}

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

/* Sections */
.content-section {
    padding: 80px 0;
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.5rem);
    font-weight: 700;
    margin-bottom: 32px;
    color: var(--color-text-primary);
}

.section-text {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    margin-bottom: 16px;
    line-height: 1.7;
    max-width: 800px;
}

.section-text:last-child {
    margin-bottom: 0;
}

.section-text a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition);
}

.section-text a:hover,
.section-text a:focus {
    color: var(--color-primary-dark);
    text-decoration: underline;
    outline: none;
}

/* Features Grid */
.features {
    padding: 80px 0;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
    margin-top: 48px;
}

.feature-card {
    background-color: var(--color-surface);
    padding: 32px;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all var(--transition);
}

.feature-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-primary);
    box-shadow: 0 8px 24px rgba(10, 132, 255, 0.15);
}

.feature-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--color-text-primary);
}

.feature-description {
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* Workflow */
.workflow {
    display: grid;
    gap: 32px;
    margin-top: 48px;
}

.workflow-step {
    display: flex;
    gap: 24px;
    align-items: flex-start;
}

.workflow-number {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    background-color: var(--color-primary);
    color: var(--color-text-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.25rem;
}

.workflow-content {
    flex: 1;
}

.workflow-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--color-text-primary);
}

.workflow-description {
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.workflow-note {
    margin-top: 32px;
    font-style: italic;
    color: var(--color-text-secondary);
}

/* Principles */
.principles-list {
    list-style: none;
    margin-top: 32px;
}

.principle-item {
    padding: 24px;
    margin-bottom: 16px;
    background-color: var(--color-surface);
    border-left: 3px solid var(--color-primary);
    border-radius: 4px;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.principle-item strong {
    color: var(--color-text-primary);
    display: block;
    margin-bottom: 8px;
}

/* Roadmap */
.roadmap {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
    margin-top: 48px;
}

.roadmap-item {
    background-color: var(--color-surface);
    padding: 24px;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.roadmap-quarter {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 12px;
}

.roadmap-description {
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.roadmap-note {
    margin-top: 32px;
    padding: 24px;
    background-color: var(--color-surface);
    border-left: 3px solid var(--color-accent);
    border-radius: 4px;
    color: var(--color-text-secondary);
    font-style: italic;
    line-height: 1.7;
}

/* CTA Section */
.cta {
    padding: 80px 0;
    text-align: center;
    background: linear-gradient(135deg, rgba(10, 132, 255, 0.1) 0%, rgba(17, 19, 24, 0.5) 100%);
}

.cta-title {
    font-size: clamp(2rem, 4vw, 2.5rem);
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--color-text-primary);
}

.cta-description {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    margin-bottom: 32px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Footer */
.footer {
    background-color: var(--color-surface);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 48px 0 24px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 32px;
    margin-bottom: 32px;
}

.footer-section {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-company {
    font-weight: 600;
    color: var(--color-text-primary);
}

.footer-email a {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color var(--transition);
}

.footer-email a:hover,
.footer-email a:focus {
    color: var(--color-primary);
    outline: none;
}

.footer-nav {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-nav a {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color var(--transition);
}

.footer-nav a:hover,
.footer-nav a:focus {
    color: var(--color-primary);
    outline: none;
}

.footer-bottom {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--color-text-secondary);
    font-size: 0.9rem;
}

/* Cookie Notice */
.cookie-notice {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: var(--color-surface);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 20px;
    z-index: 100;
    transform: translateY(100%);
    transition: transform var(--transition);
    display: none;
}

.cookie-notice.show {
    transform: translateY(0);
    display: block;
}

.cookie-content {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
    flex-wrap: wrap;
}

.cookie-content p {
    color: var(--color-text-secondary);
    flex: 1;
    min-width: 250px;
}

/* Responsive Adjustments */
@media (max-width: 767px) {
    .hero {
        padding: 60px 0;
    }
    
    .content-section {
        padding: 60px 0;
    }
    
    .features {
        padding: 60px 0;
    }
    
    .cta {
        padding: 60px 0;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
    
    .workflow-step {
        flex-direction: column;
        gap: 16px;
    }
    
    .cookie-content {
        flex-direction: column;
        text-align: center;
    }
    
    .cookie-content p {
        margin-bottom: 16px;
    }
}

/* Focus Styles for Accessibility */
a:focus,
button:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Print Styles */
@media print {
    .header,
    .footer,
    .cookie-notice {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
}