/* 
   Future Think - Modern Redesign
   New Product Launch Splash Color Scheme
*/

/* CSS Custom Properties */
:root {
    /* Primary Brand Colors */
    --color-primary: #2E5CF0;      /* Vibrant Blue */
    --color-secondary: #FCCE00;    /* Bold Yellow */
    --color-accent: #10B981;       /* Fresh Green */
    
    /* Neutrals */
    --color-bg: #FAFAFA;           /* Light background */
    --color-surface: #FFFFFF;      /* White surface */
    --color-text: #1A1A2E;         /* Dark navy text */
    --color-text-muted: #6B7280;   /* Gray text */
    --color-border: #E5E7EB;       /* Light border */
    
    /* Typography */
    --font-sans: 'Atkinson Hyperlegible', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 5rem;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.07);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.1);
    --shadow-xl: 0 20px 40px rgba(0,0,0,0.12);
}

/* Reset */
*, *::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: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-text);
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.75rem); }

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

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

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

/* Container */
.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo img {
    height: 40px;
    width: auto;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text);
}

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

.nav-link {
    font-weight: 500;
    color: var(--color-text);
    padding: var(--spacing-xs) 0;
    position: relative;
}

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

.nav-link:hover::after {
    width: 100%;
}

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

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: calc(72px + var(--spacing-xl)) var(--spacing-lg) var(--spacing-xl);
    background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-bg) 100%);
}

.hero-content {
    max-width: 800px;
}

.hero-badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--color-secondary);
    color: var(--color-text);
    font-weight: 600;
    font-size: 0.875rem;
    border-radius: 50px;
    margin-bottom: var(--spacing-lg);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.hero h1 {
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--color-text) 0%, var(--color-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-xl);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 1rem;
    font-weight: 600;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
}

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

.btn-primary:hover {
    background: var(--color-accent);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-secondary:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

/* Projects Section */
.projects-section {
    padding: var(--spacing-2xl) 0;
    background: var(--color-surface);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

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

.section-header p {
    max-width: 600px;
    margin: 0 auto;
}

/* Project Grid */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-lg);
}

.project-card {
    background: var(--color-bg);
    border-radius: 16px;
    overflow: hidden;
    transition: all var(--transition-base);
    border: 1px solid var(--color-border);
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary);
}

.project-image {
    position: relative;
    aspect-ratio: 16/10;
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.project-card:hover .project-image img {
    transform: scale(1.05);
}

.project-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(26, 26, 46, 0.95) 0%, transparent 60%);
    opacity: 0;
    transition: opacity var(--transition-base);
    display: flex;
    align-items: flex-end;
    padding: var(--spacing-lg);
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.project-info h3 {
    color: white;
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
}

.project-info p {
    color: rgba(255,255,255,0.8);
    font-size: 0.9rem;
    margin: 0;
}

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

.project-content h3 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xs);
}

.project-content p {
    font-size: 0.9rem;
    margin: 0;
}

/* Contact Section */
.contact-section {
    padding: var(--spacing-2xl) 0;
    background: var(--color-bg);
    text-align: center;
}

.contact-content {
    max-width: 600px;
    margin: 0 auto;
}

.contact-email {
    display: inline-block;
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    font-weight: 700;
    color: var(--color-primary);
    padding: var(--spacing-md) var(--spacing-xl);
    background: var(--color-surface);
    border-radius: 12px;
    transition: all var(--transition-base);
    border: 2px solid var(--color-border);
}

.contact-email:hover {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
    transform: scale(1.02);
}

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

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

.footer-links {
    display: flex;
    gap: var(--spacing-lg);
    list-style: none;
}

.footer-links a {
    color: rgba(255,255,255,0.7);
    font-size: 0.9rem;
}

.footer-links a:hover {
    color: white;
}

.footer-copyright {
    color: rgba(255,255,255,0.5);
    font-size: 0.875rem;
}

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

.fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

.fade-in-up:nth-child(1) { animation-delay: 0.1s; }
.fade-in-up:nth-child(2) { animation-delay: 0.2s; }
.fade-in-up:nth-child(3) { animation-delay: 0.3s; }
.fade-in-up:nth-child(4) { animation-delay: 0.4s; }
.fade-in-up:nth-child(5) { animation-delay: 0.5s; }
.fade-in-up:nth-child(6) { animation-delay: 0.6s; }

/* Responsive */
@media (max-width: 768px) {
    .nav-list {
        display: none;
    }
    
    .header-inner {
        height: 64px;
    }
    
    .hero {
        padding-top: calc(64px + var(--spacing-lg));
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-inner {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
    }
}

/* Loader */
.loader {
    position: fixed;
    inset: 0;
    background: var(--color-surface);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loader.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader-spinner {
    width: 50px;
    height: 50px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Utility */
.text-center { text-align: center; }
.mb-0 { margin-bottom: 0; }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }