:root {
    --primary: #000000;
    --secondary: #666666;
    --accent: #007AFF;
    --background: #FFFFFF;
    --surface: #F8F9FA;
    --text-light: #999999;
    --border: #E5E5E7;
    --shadow: rgba(0, 0, 0, 0.1);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--primary);
    background: var(--background);
    overflow-x: hidden;
    font-feature-settings: 'kern' 1, 'liga' 1, 'calt' 1;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    padding: 4rem 0;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 80%, rgba(0, 122, 255, 0.05) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(0, 122, 255, 0.03) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 1200px;
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.hero-left {
    display: flex;
    flex-direction: column;
}

.hero-right {
    display: flex;
    flex-direction: column;
}

.logo-inline {
    width: 80px;
    height: 80px;
    object-fit: contain;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero h1 {
    font-size: clamp(2.5rem, 8vw, 4.5rem);
    font-weight: 800;
    line-height: 1.05;
    margin-bottom: 1.5rem;
    letter-spacing: -0.03em;
    font-feature-settings: 'kern' 1, 'liga' 1, 'calt' 1;
}

.logo-title {
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    font-weight: 800;
    line-height: 1.05;
    margin-bottom: 1.5rem;
    letter-spacing: -0.03em;
    font-feature-settings: 'kern' 1, 'liga' 1, 'calt' 1;
    display: flex;
    align-items: center;
    gap: 1rem;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s ease-out 0.2s forwards;
}

.hero .tagline {
    font-size: clamp(1.125rem, 3vw, 1.5rem);
    font-weight: 500;
    color: var(--secondary);
    margin-bottom: 3rem;
    line-height: 1.6;
    letter-spacing: -0.01em;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    background: var(--primary);
    color: var(--background);
    text-decoration: none;
    border-radius: 50px;
    font-weight: 500;
    font-size: 1rem;
    transition: var(--transition);
    border: 2px solid transparent;
    align-self: flex-start;
}

.cta-button:hover {
    background: var(--background);
    color: var(--primary);
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px var(--shadow);
}

.cta-button:focus {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* About Section */
.about {
    padding: 8rem 0;
    background: var(--background);
    position: relative;
}

.about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 20%, rgba(0, 0, 0, 0.02) 0%, transparent 50%),
                radial-gradient(circle at 70% 80%, rgba(0, 122, 255, 0.02) 0%, transparent 50%);
    pointer-events: none;
}

.about-content {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 2;
}

.about h2 {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    margin-bottom: 2.5rem;
    letter-spacing: -0.02em;
    font-feature-settings: 'kern' 1, 'liga' 1, 'calt' 1;
    position: relative;
}

.about h2::after {
    content: '';
    position: absolute;
    bottom: -1rem;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--accent) 0%, transparent 100%);
    border-radius: 2px;
}

.about p {
    font-size: 1.25rem;
    color: var(--secondary);
    line-height: 1.8;
    margin: 0;
    text-align: left;
    max-width: 650px;
    margin: 0 auto;
}

.focus-grid {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-top: 2rem;
}

.focus-item {
    text-align: left;
    padding: 1.5rem;
    border-radius: 12px;
    background: var(--surface);
    transition: var(--transition);
    border-left: 4px solid var(--primary);
}

.focus-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px var(--shadow);
}

.focus-item h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.focus-item p {
    font-size: 0.9rem;
    color: var(--text-light);
    margin: 0;
}

/* Contact Section */
.contact {
    padding: 8rem 0;
    background: var(--surface);
    position: relative;
}

.contact::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 0%, rgba(0, 122, 255, 0.03) 0%, transparent 50%);
    pointer-events: none;
}

.contact-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.contact-header {
    margin-bottom: 3rem;
}

.contact h2 {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
    font-feature-settings: 'kern' 1, 'liga' 1, 'calt' 1;
}

.contact p {
    font-size: 1.25rem;
    color: var(--secondary);
    line-height: 1.7;
    max-width: 600px;
    margin: 0 auto;
}

.email-link {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--accent);
    text-decoration: none;
    padding: 1.25rem 2.5rem;
    border: 2px solid var(--border);
    border-radius: 50px;
    transition: var(--transition);
    background: var(--background);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.email-link:hover {
    border-color: var(--accent);
    background: var(--accent);
    color: var(--background);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 122, 255, 0.3);
}

.email-link:focus {
    outline: 2px solid var(--accent);
    outline-offset: 4px;
}

/* Footer */
.footer {
    padding: 3rem 0;
    border-top: 1px solid var(--border);
    text-align: center;
}

.footer p {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 1.5rem;
    }

    .hero {
        min-height: 90vh;
        padding: 2rem 0;
    }

    .hero-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .about, .contact {
        padding: 6rem 0;
    }

    .focus-grid {
        flex-direction: column;
        gap: 1rem;
    }

    .focus-item {
        padding: 1.25rem;
    }

            .cta-button, .email-link {
                padding: 0.875rem 1.5rem;
                font-size: 0.9rem;
            }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero .tagline {
        font-size: 1.125rem;
    }

    .about h2, .contact h2 {
        font-size: 2rem;
    }

    .about p, .contact p {
        font-size: 1.125rem;
    }
}

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

/* Focus styles for keyboard navigation */
*:focus {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* Skip link for accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--primary);
    color: var(--background);
    padding: 8px;
    text-decoration: none;
    border-radius: 4px;
    z-index: 1000;
}

.skip-link:focus {
    top: 6px;
}