/* Coastal Digital Research Landing Page Styles */
/* Color Palette: #064789 (primary), #427AA1 (secondary), #679436 (accent), #1E293B (text), #F8FAFC (bg) */

/* Font Imports - Aileron (Futura-style) & JetBrains Mono */
@font-face {
    font-family: 'Aileron';
    src: url('fonts/Aileron-Regular.otf') format('opentype');
    font-weight: 400;
    font-style: normal;
}
@font-face {
    font-family: 'Aileron';
    src: url('fonts/Aileron-SemiBold.otf') format('opentype');
    font-weight: 600;
    font-style: normal;
}
@font-face {
    font-family: 'Aileron';
    src: url('fonts/Aileron-Bold.otf') format('opentype');
    font-weight: 700;
    font-style: normal;
}
@font-face {
    font-family: 'Aileron';
    src: url('fonts/Aileron-Heavy.otf') format('opentype');
    font-weight: 800;
    font-style: normal;
}

/* CSS Variables for Design System */
:root {
    --primary-color: #064789;
    --secondary-color: #427AA1;
    --accent-color: #679436;
    --text-color: #1E293B;
    --text-muted: #64748B;
    --background-primary: #F8FAFC;
    --background-secondary: #EBF2FA;
    
    --font-family: 'Inter', system-ui, -apple-system, sans-serif;
    --font-family-heading: 'Aileron', 'Inter', system-ui, -apple-system, sans-serif;
    --font-family-mono: 'JetBrains Mono', 'Fira Code', monospace;
    --font-weight-light: 300;
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;
    
    --transition-fast: 0.15s ease-out;
    --transition-normal: 0.25s ease-out;
    --transition-slow: 0.4s ease-out;
    
    --shadow-subtle: 0 2px 8px rgba(6, 71, 137, 0.06);
    --shadow-medium: 0 4px 12px rgba(6, 71, 137, 0.12);
    --shadow-strong: 0 8px 24px rgba(6, 71, 137, 0.15);
    
    --border-radius-sm: 6px;
    --border-radius-md: 12px;
    --border-radius-lg: 20px;
    
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
}

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

body {
    font-family: var(--font-family);
    font-weight: var(--font-weight-light);
    line-height: 1.7;
    color: var(--text-color);
    background-color: var(--background-primary);
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography System */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-heading);
    font-weight: var(--font-weight-semibold);
    line-height: 1.3;
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 600;
}

h3 { 
    font-size: clamp(1.5rem, 3vw, 2rem);
}

p {
    margin-bottom: var(--spacing-lg);
    font-size: 1.1rem;
    line-height: 1.8;
}

a {
    color: var(--secondary-color);
    text-decoration: none;
    transition: all var(--transition-fast);
    position: relative;
}

a:hover {
    color: var(--primary-color);
    transform: translateY(-1px);
}

/* Container System */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
}

/* Header & Navigation */
.header {
    background-color: rgba(251, 252, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: var(--shadow-subtle);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: all var(--transition-normal);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.logo {
    height: 75px;
    width: auto;
    border-radius: var(--border-radius-sm);
    transition: transform var(--transition-normal);
}

.logo:hover {
    transform: scale(1.05);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-2xl);
    align-items: center;
}

.nav-menu a {
    font-weight: var(--font-weight-regular);
    font-size: 1rem;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-md);
    transition: all var(--transition-normal);
    position: relative;
}

.nav-menu a:hover {
    background-color: var(--background-secondary);
    transform: translateY(-2px);
}

.nav-menu a.active {
    background-color: var(--primary-color);
    color: white;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: var(--spacing-3xl) 0;
    margin-top: 80px;
    position: relative;
    overflow: hidden;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
}

.hero-text h1 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-lg);
    animation: fadeInUp 0.8s ease-out;
}

.hero-text p {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-2xl);
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-lg);
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.hero-image {
    position: relative;
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

.hero-image img {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-strong);
    transition: transform var(--transition-slow);
}

.hero-image:hover img {
    transform: scale(1.02) rotate(1deg);
}

/* Button System */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--border-radius-md);
    font-weight: var(--font-weight-semibold);
    font-size: 1rem;
    text-decoration: none;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: rgba(255,255,255,0.1);
    transition: left var(--transition-slow);
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
    box-shadow: var(--shadow-medium), 0 2px 4px rgba(0, 0, 0, 0.15);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-strong), 0 4px 8px rgba(0, 0, 0, 0.2);
}

.btn-secondary {
    background: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
}

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

/* Section Styling */
.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-3xl);
}

.section-header h2 {
    margin-bottom: var(--spacing-lg);
    color: var(--primary-color);
}

.section-header p {
    font-size: 1.2rem;
    color: var(--text-muted);
}

/* About Section */
.about {
    padding: var(--spacing-3xl) 0;
    background-color: var(--background-secondary);
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-2xl);
    margin-top: var(--spacing-3xl);
}

.about-card {
    background: white;
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-subtle);
    transition: all var(--transition-normal);
    border: 1px solid rgba(6, 71, 137, 0.08);
}

.about-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-strong);
    border-color: var(--secondary-color);
}

.about-card h3 {
    color: var(--primary-color);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-md);
}

/* Services Section */
.services {
    padding: var(--spacing-3xl) 0;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-2xl);
    margin-top: var(--spacing-3xl);
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

.service-card {
    background: white;
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-lg);
    text-align: center;
    box-shadow: var(--shadow-subtle);
    transition: all var(--transition-normal);
    border: 1px solid rgba(6, 71, 137, 0.08);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--accent-color);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-strong);
}

.service-icon {
    margin-bottom: var(--spacing-lg);
    width: 100px;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-color);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-medium), 0 2px 4px rgba(0, 0, 0, 0.15);
    transition: all var(--transition-normal);
    margin: 0 auto var(--spacing-lg);
}

.service-icon img {
    transition: transform var(--transition-normal);
    filter: brightness(1.2) contrast(1.1);
}

.service-card:hover .service-icon {
    transform: translateY(-5px);
    box-shadow: var(--shadow-strong), 0 4px 8px rgba(0, 0, 0, 0.2);
    background: var(--accent-color);
}

.service-card:hover .service-icon img {
    transform: scale(1.1);
}

.service-card h3 {
    color: var(--primary-color);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-md);
}

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

/* CTA Section */
.cta {
    padding: var(--spacing-3xl) 0;
    background: var(--primary-color);
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="20" cy="20" r="1" fill="white" opacity="0.05"/><circle cx="80" cy="40" r="1" fill="white" opacity="0.05"/><circle cx="40" cy="80" r="1" fill="white" opacity="0.05"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>') repeat;
}

.cta-content {
    position: relative;
    z-index: 1;
}

.cta h2 {
    color: white;
    margin-bottom: var(--spacing-lg);
}

.cta p {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-2xl);
    opacity: 0.9;
}

/* Footer */
.footer {
    background-color: var(--primary-color);
    color: white;
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-xl);
}

.footer-section h3,
.footer-section h4 {
    color: white;
    margin-bottom: var(--spacing-md);
    font-weight: var(--font-weight-semibold);
}

.footer-section p {
    opacity: 0.8;
    margin-bottom: var(--spacing-sm);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.7;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Design */
@media (max-width: 968px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-2xl);
    }
    
    .hero-buttons {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .nav-menu {
        gap: var(--spacing-lg);
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-xl: 1rem;
        --spacing-2xl: 2rem;
        --spacing-3xl: 3rem;
    }
    
    .nav-container {
        height: 70px;
        padding: 0 var(--spacing-md);
    }
    
    .nav-menu {
        gap: var(--spacing-md);
    }
    
    .nav-menu a {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: 0.9rem;
    }
    
    .hero {
        margin-top: 70px;
        padding: var(--spacing-2xl) 0;
    }
    
    .btn {
        padding: var(--spacing-sm) var(--spacing-lg);
        font-size: 0.9rem;
    }
    
    .services-grid,
    .about-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
}

@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }
}

/* Focus and Accessibility */
a:focus-visible,
button:focus-visible,
.btn:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

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