/* Anthropic-Inspired Modern Design System */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Sophisticated Neutral Palette */
    --slate-950: #020617;
    --slate-900: #0f172a;
    --slate-800: #1e293b;
    --slate-700: #334155;
    --slate-600: #475569;
    --slate-500: #64748b;
    --slate-400: #94a3b8;
    --slate-300: #cbd5e1;
    --slate-200: #e2e8f0;
    --slate-100: #f1f5f9;
    --slate-50: #f8fafc;
    
    /* Accent Colors */
    --accent-primary: #cc785c;
    --accent-secondary: #3b82f6;
    --accent-tertiary: #8b5cf6;
    
    /* Semantic Colors */
    --text-primary: var(--slate-900);
    --text-secondary: var(--slate-600);
    --text-muted: var(--slate-500);
    --bg-primary: #ffffff;
    --bg-secondary: var(--slate-50);
    --bg-tertiary: #fafbfc;
    --border-subtle: rgba(0, 0, 0, 0.08);
    --border-default: rgba(0, 0, 0, 0.12);
    
    /* Typography Scale */
    --font-system: -apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    --font-mono: 'SF Mono', Monaco, 'Cascadia Code', monospace;
    
    /* Fluid Typography */
    --text-xs: clamp(0.75rem, 0.7rem + 0.2vw, 0.875rem);
    --text-sm: clamp(0.875rem, 0.8rem + 0.3vw, 1rem);
    --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
    --text-lg: clamp(1.125rem, 1rem + 0.5vw, 1.25rem);
    --text-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
    --text-2xl: clamp(1.5rem, 1.3rem + 1vw, 2rem);
    --text-3xl: clamp(1.875rem, 1.5rem + 1.5vw, 2.5rem);
    --text-4xl: clamp(2.25rem, 1.8rem + 2vw, 3.5rem);
    --text-5xl: clamp(3rem, 2rem + 3vw, 4.5rem);
    
    /* Spacing Scale */
    --space-xs: clamp(0.25rem, 0.2rem + 0.2vw, 0.375rem);
    --space-sm: clamp(0.5rem, 0.4rem + 0.4vw, 0.75rem);
    --space-md: clamp(1rem, 0.8rem + 0.8vw, 1.5rem);
    --space-lg: clamp(1.5rem, 1.2rem + 1.2vw, 2rem);
    --space-xl: clamp(2rem, 1.5rem + 2vw, 3rem);
    --space-2xl: clamp(3rem, 2rem + 3vw, 4.5rem);
    --space-3xl: clamp(4rem, 3rem + 4vw, 6rem);
    
    /* Shadows */
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    
    /* Animation Timing */
    --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
    --ease-out: cubic-bezier(0, 0, 0.2, 1);
    --duration-fast: 150ms;
    --duration-normal: 300ms;
    --duration-slow: 500ms;
}

/* Base Styles */
html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

body {
    font-family: var(--font-system);
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    overflow-x: hidden;
}

::selection {
    background: rgba(204, 120, 92, 0.2);
    color: var(--slate-900);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

h1 { 
    font-size: var(--text-5xl);
    font-weight: 700;
    letter-spacing: -0.03em;
}

h2 { 
    font-size: var(--text-3xl);
    margin-bottom: var(--space-md);
}

h3 { 
    font-size: var(--text-2xl);
    margin-bottom: var(--space-sm);
}

p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--space-md);
}

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

/* Navigation */
.navbar {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    border-bottom: 1px solid var(--border-subtle);
    transition: all var(--duration-normal) var(--ease-in-out);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow-sm);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 64px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--text-primary);
    text-decoration: none;
    transition: opacity var(--duration-fast) var(--ease-out);
}

.nav-brand:hover {
    opacity: 0.7;
}

.logo {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--slate-700) 0%, var(--slate-900) 100%);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: var(--text-base);
}

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

.nav-menu a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: var(--text-sm);
    padding: 8px 16px;
    border-radius: 6px;
    transition: all var(--duration-fast) var(--ease-out);
    position: relative;
}

.nav-menu a:hover {
    color: var(--text-primary);
    background: var(--bg-secondary);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 16px;
    right: 16px;
    height: 2px;
    background: var(--accent-primary);
    transform: scaleX(0);
    transition: transform var(--duration-normal) var(--ease-out);
}

.nav-menu a:hover::after {
    transform: scaleX(1);
}

/* Hero Section */
.hero {
    min-height: 90vh;
    display: flex;
    align-items: center;
    padding: var(--space-3xl) 0;
    margin-top: 64px;
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 100%;
    height: 200%;
    background: radial-gradient(circle, rgba(204, 120, 92, 0.05) 0%, transparent 50%);
    animation: float-slow 20s ease-in-out infinite;
}

@keyframes float-slow {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(-30px, -30px) scale(1.05); }
}

.hero-content {
    max-width: 800px;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: var(--text-5xl);
    font-weight: 700;
    margin-bottom: var(--space-lg);
    line-height: 1.1;
    color: var(--text-primary);
    opacity: 0;
    animation: fade-in-up 0.8s var(--ease-out) forwards;
}

.hero-title span {
    background: linear-gradient(135deg, var(--slate-700) 0%, var(--accent-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: var(--text-2xl);
    color: var(--text-primary);
    margin-bottom: var(--space-md);
    font-weight: 500;
    opacity: 0;
    animation: fade-in-up 0.8s 0.1s var(--ease-out) forwards;
}

.hero-description {
    font-size: var(--text-lg);
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
    line-height: 1.7;
    opacity: 0;
    animation: fade-in-up 0.8s 0.2s var(--ease-out) forwards;
}

@keyframes fade-in-up {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.cta-button {
    display: inline-block;
    padding: 12px 28px;
    background: var(--slate-900);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 500;
    font-size: var(--text-base);
    transition: all var(--duration-normal) var(--ease-out);
    position: relative;
    overflow: hidden;
    opacity: 0;
    animation: fade-in-up 0.8s 0.3s var(--ease-out) forwards;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    opacity: 0;
    transition: opacity var(--duration-normal) var(--ease-out);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.cta-button:hover::before {
    opacity: 1;
}

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

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

.section-title {
    font-size: var(--text-4xl);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--space-md);
    color: var(--text-primary);
}

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: var(--text-lg);
    margin-bottom: var(--space-2xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

/* About Section */
.about {
    background: var(--bg-tertiary);
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
}

.about-text {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.about-text p {
    font-size: var(--text-lg);
    line-height: 1.7;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-lg);
}

.feature {
    background: var(--bg-primary);
    padding: var(--space-xl);
    border-radius: 12px;
    border: 1px solid var(--border-subtle);
    transition: all var(--duration-normal) var(--ease-out);
    text-align: center;
}

.feature:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-md);
    display: block;
    filter: grayscale(0.2);
    transition: transform var(--duration-normal) var(--ease-out);
}

.feature:hover .feature-icon {
    transform: scale(1.1);
}

.feature h3 {
    font-size: var(--text-xl);
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
}

.feature p {
    color: var(--text-secondary);
    font-size: var(--text-sm);
}

/* Services Grid */
.services {
    background: var(--bg-primary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: var(--space-lg);
    margin-top: var(--space-2xl);
}

.service-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    padding: var(--space-xl);
    transition: all var(--duration-normal) var(--ease-out);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--duration-normal) var(--ease-out);
}

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

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

.service-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    background: var(--bg-secondary);
    border-radius: 10px;
    margin-bottom: var(--space-md);
    transition: all var(--duration-normal) var(--ease-out);
}

.service-card:hover .service-icon {
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    transform: scale(1.1);
}

.service-card h3 {
    font-size: var(--text-xl);
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
    font-weight: 600;
}

.service-card p {
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
    font-size: var(--text-sm);
    line-height: 1.6;
}

.service-card ul {
    list-style: none;
}

.service-card li {
    padding: var(--space-xs) 0;
    color: var(--text-secondary);
    font-size: var(--text-sm);
    padding-left: 20px;
    position: relative;
}

.service-card li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--accent-primary);
    font-weight: 600;
}

/* Contact Section */
.contact {
    background: var(--bg-tertiary);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
    max-width: 1000px;
    margin: 0 auto;
}

.contact-info h3 {
    font-size: var(--text-2xl);
    margin-bottom: var(--space-md);
    color: var(--text-primary);
}

.contact-info p {
    font-size: var(--text-lg);
    margin-bottom: var(--space-lg);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.contact-icon {
    font-size: 1.5rem;
    color: var(--accent-primary);
    margin-top: 2px;
}

.contact-form {
    background: var(--bg-primary);
    padding: var(--space-xl);
    border-radius: 12px;
    box-shadow: var(--shadow-md);
}

.form-group {
    margin-bottom: var(--space-lg);
}

.form-group label {
    display: block;
    margin-bottom: var(--space-xs);
    color: var(--text-primary);
    font-weight: 500;
    font-size: var(--text-sm);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    font-size: var(--text-base);
    transition: all var(--duration-fast) var(--ease-out);
    background: var(--bg-primary);
    font-family: var(--font-system);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(204, 120, 92, 0.1);
}

.submit-button {
    width: 100%;
    padding: 12px 24px;
    background: var(--slate-900);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: var(--text-base);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-out);
    position: relative;
    overflow: hidden;
}

.submit-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    opacity: 0;
    transition: opacity var(--duration-normal) var(--ease-out);
}

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

.submit-button:hover::before {
    opacity: 1;
}

.submit-button span {
    position: relative;
    z-index: 1;
}

/* Footer */
.footer {
    background: var(--slate-900);
    color: var(--slate-300);
    padding: var(--space-2xl) 0 var(--space-xl);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-xl);
    margin-bottom: var(--space-xl);
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: var(--space-md);
    color: white;
    font-weight: 600;
}

.footer-section p {
    color: var(--slate-400);
    line-height: 1.6;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: var(--space-sm);
}

.footer-section a {
    color: var(--slate-400);
    text-decoration: none;
    transition: color var(--duration-fast) var(--ease-out);
    font-size: var(--text-sm);
}

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

.social-links {
    display: flex;
    gap: var(--space-sm);
    margin-top: var(--space-md);
}

.social-links a {
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--duration-fast) var(--ease-out);
}

.social-links a:hover {
    background: var(--accent-primary);
    transform: translateY(-2px);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--space-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--slate-500);
    font-size: var(--text-sm);
}

/* Responsive */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--bg-primary);
        flex-direction: column;
        padding: var(--space-lg);
        box-shadow: var(--shadow-lg);
        gap: 4px;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .hamburger {
        display: flex;
        flex-direction: column;
        cursor: pointer;
        padding: 8px;
    }
    
    .hamburger span {
        width: 20px;
        height: 2px;
        background: var(--text-secondary);
        margin: 2px 0;
        transition: var(--duration-normal);
        border-radius: 2px;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}

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

:focus-visible {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
}