/* ========================================
   CSS Variables & Design System
   ======================================== */
:root {
    /* Colors - Sophisticated Dark Theme */
    --color-bg-primary: #0a0a0f;
    --color-bg-secondary: #13131a;
    --color-bg-card: rgba(25, 25, 35, 0.6);
    --color-text-primary: #e8e8f0;
    --color-text-secondary: #a0a0b8;
    --color-accent: #6366f1;
    --color-accent-hover: #818cf8;
    --color-border: rgba(255, 255, 255, 0.1);

    /* Gradients */
    --gradient-accent: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    --gradient-card: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(139, 92, 246, 0.05) 100%);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 0.875rem;
    --font-size-sm: 1rem;
    --font-size-md: 1.125rem;
    --font-size-lg: 1.5rem;
    --font-size-xl: 2rem;
    --font-size-2xl: 3rem;
    --font-size-3xl: 4rem;

    /* Effects */
    --border-radius-sm: 0.5rem;
    --border-radius-md: 1rem;
    --border-radius-lg: 1.5rem;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.3);

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Animated background gradient */
body::before {
    content: '';
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 20% 50%, rgba(99, 102, 241, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(139, 92, 246, 0.08) 0%, transparent 50%);
    animation: gradientShift 15s ease infinite;
    z-index: -1;
}

@keyframes gradientShift {

    0%,
    100% {
        transform: translate(0, 0);
    }

    50% {
        transform: translate(-10%, -10%);
    }
}

/* ========================================
   Typography
   ======================================== */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

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

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

main {
    min-height: 100vh;
    max-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    text-align: center;
    animation: fadeInUp 0.8s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero__title {
    font-size: clamp(var(--font-size-xl), 5vw, var(--font-size-3xl));
    margin-bottom: 0.75rem;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 0.8s ease 0.2s backwards;
}

.hero__subtitle {
    font-size: clamp(var(--font-size-md), 2vw, var(--font-size-lg));
    color: var(--color-text-secondary);
    margin-bottom: 1rem;
    font-weight: 400;
    animation: fadeInUp 0.8s ease 0.3s backwards;
}

.hero__description {
    font-size: var(--font-size-md);
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto 2rem;
    line-height: 1.8;
    animation: fadeInUp 0.8s ease 0.4s backwards;
}

/* ========================================
   Social Links Grid
   ======================================== */
.social-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
    max-width: 900px;
    margin: 0 auto;
    animation: fadeInUp 0.8s ease 0.5s backwards;
}

.social-card {
    position: relative;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    transition: all var(--transition-medium);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    overflow: hidden;
    cursor: pointer;
}

/* Glassmorphism effect */
.social-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-card);
    opacity: 0;
    transition: opacity var(--transition-medium);
    z-index: -1;
}

.social-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-accent);
    box-shadow: var(--shadow-glow);
}

.social-card:hover::before {
    opacity: 1;
}

.social-card__icon {
    width: 48px;
    height: 48px;
    min-width: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-accent);
    border-radius: var(--border-radius-sm);
    transition: transform var(--transition-medium);
}

.social-card:hover .social-card__icon {
    transform: scale(1.1) rotate(5deg);
}

.social-card__icon svg {
    width: 24px;
    height: 24px;
    fill: white;
}

.social-card__content {
    flex: 1;
    min-width: 0;
    overflow: hidden;
}

.social-card__title {
    font-size: var(--font-size-md);
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: var(--color-text-primary);
}

.social-card__handle {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    font-family: 'Courier New', monospace;
    word-break: break-word;
    overflow-wrap: break-word;
    max-width: 100%;
    hyphens: none;
}

/* Arrow indicator */
.social-card__arrow {
    width: 20px;
    height: 20px;
    opacity: 0;
    transform: translateX(-10px);
    transition: all var(--transition-medium);
}

.social-card:hover .social-card__arrow {
    opacity: 1;
    transform: translateX(0);
}

.social-card__arrow svg {
    width: 100%;
    height: 100%;
    fill: var(--color-accent);
}

/* ========================================
   Footer
   ======================================== */
.footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    text-align: center;
    padding: 1rem var(--spacing-lg);
    color: var(--color-text-secondary);
    font-size: var(--font-size-xs);
    background: transparent;
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 768px) {
    .container {
        padding: var(--spacing-md);
    }

    .social-links {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }

    .hero__description {
        font-size: var(--font-size-sm);
    }

    main {
        padding: var(--spacing-lg) 0;
    }
}

@media (max-width: 480px) {
    .social-card {
        padding: var(--spacing-md);
    }

    .social-card__icon {
        width: 40px;
        height: 40px;
        min-width: 40px;
    }

    .social-card__icon svg {
        width: 20px;
        height: 20px;
    }
}

/* ========================================
   Accessibility
   ======================================== */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

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