@import url("https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;600&display=swap");
@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500&display=swap");

:root {
    /* Colors */
    --clr-bg: #000000;
    --clr-text: #ffffff;
    --clr-text-dim: rgba(255, 255, 255, 0.75);
    --clr-text-muted: rgba(255, 255, 255, 0.4);
    --clr-overlay: rgba(0, 0, 0, 0.85);

    /* Spacing Scale */
    --space-2xs: 0.25rem;
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;

    /* Typography */
    --font-display: "Playfair Display", Georgia, serif;
    --font-mono: "IBM Plex Mono", "Courier New", monospace;
    --text-xs: clamp(0.75rem, 1.5vw, 0.875rem);
    --text-base: clamp(0.55rem, 2.2vw, 0.3rem);
    --text-lg: clamp(1.25rem, 3vw, 1.75rem);
    --text-xl: clamp(3.5rem, 4vw, 3.25rem);

    /* Effects */
    --transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow-glow: 0 0 20px rgba(255, 255, 255, 0.1);

    /* Layout */
    --max-width: 52rem;
    --header-height: 5rem;
}

/* Reset & Base */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    height: 100%;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    min-height: 100%;
    background-color: var(--clr-bg);
    color: var(--clr-text);
    font-family: var(--font-display);
    position: relative;
    overflow: hidden;
}

/* Subtle Grain Texture */
.grain-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    opacity: 0.03;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
    z-index: 1;
}

.content-container {
    position: relative;
    z-index: 2;
    height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header Styles */
header {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: var(--space-lg) var(--space-xl);
    background: linear-gradient(
        180deg,
        var(--clr-bg) 0%,
        var(--clr-overlay) 60%,
        transparent 100%
    );
    backdrop-filter: blur(8px);
    pointer-events: none;
}

header nav {
    display: flex;
    justify-content: center;
    align-items: center;
}

.nav-home {
    color: var(--clr-text);
    text-decoration: none;
    font-size: var(--text-xl);
    font-weight: 600;
    letter-spacing: 0.02em;
    transition: var(--transition);
    display: inline-block;
    position: relative;
    pointer-events: auto;
}

.nav-home::after {
    content: "";
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--clr-text);
    transition: width 0.3s ease;
}

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

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

.nav-home:focus-visible {
    outline: 2px solid var(--clr-text-dim);
    outline-offset: 8px;
    border-radius: 2px;
}

/* Main Content */
main {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg);
    overflow-y: auto;
}

.about-wrapper {
    width: 100%;
    max-width: var(--max-width);
    animation: fadeInUp 0.8s ease-out;
}

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

.about-content {
    text-align: center;
    padding: var(--space-md);
}

.bio-text {
    font-family: var(--font-mono);
    font-size: var(--text-base);
    font-weight: 400;
    line-height: 2;
    letter-spacing: 0.03em;
    color: var(--clr-text-dim);
    text-align: center;
}

/* Footer Styles */
footer {
    padding: var(--space-xl) var(--space-lg) var(--space-lg);
    background: linear-gradient(
        0deg,
        var(--clr-bg) 0%,
        var(--clr-overlay) 60%,
        transparent 100%
    );
    backdrop-filter: blur(8px);
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 100;
    pointer-events: none;
}

.footer-wrapper {
    text-align: center;
}

.social-nav {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-lg);
    margin-bottom: var(--space-md);
    flex-wrap: wrap;
    pointer-events: auto;
}

.social-link {
    color: var(--clr-text);
    font-size: 2rem;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 3.5rem;
    height: 3.5rem;
    text-decoration: none;
    pointer-events: auto;
}

.social-link:hover {
    opacity: 0.7;
    transform: translateY(-4px) scale(1.08);
}

.social-link:focus-visible {
    outline: 2px solid var(--clr-text-dim);
    outline-offset: 4px;
}

.copyright {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--clr-text-muted);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    font-weight: 500;
}

/* Responsive Breakpoints */
@media (max-width: 1024px) {
    :root {
        --space-xl: 2.5rem;
        --space-2xl: 3rem;
    }
}

@media (max-width: 768px) {
    :root {
        --space-lg: 1.5rem;
        --space-xl: 2rem;
        --space-2xl: 2.5rem;
        --space-3xl: 4rem;
    }

    header {
        padding: var(--space-md) var(--space-lg);
    }

    main {
        padding: var(--space-md);
    }

    .social-nav {
        gap: var(--space-md);
    }

    .social-link {
        font-size: 1.75rem;
        width: 3rem;
        height: 3rem;
    }
}

@media (max-width: 480px) {
    :root {
        --space-md: 1rem;
        --space-lg: 1.25rem;
        --space-xl: 1.5rem;
        --header-height: 4rem;
    }

    header {
        padding: var(--space-sm) var(--space-md);
    }

    main {
        padding: var(--space-sm);
    }

    .about-content {
        padding: var(--space-sm);
    }

    .social-nav {
        gap: var(--space-sm);
    }

    .social-link {
        font-size: 1.5rem;
        width: 2.75rem;
        height: 2.75rem;
    }

    footer {
        padding: var(--space-lg) var(--space-sm) var(--space-md);
    }
}

/* Accessibility & Performance */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

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

@media (prefers-contrast: high) {
    :root {
        --clr-text-dim: var(--clr-text);
    }
}

/* Selection */
::selection {
    background-color: var(--clr-text);
    color: var(--clr-bg);
}

::-moz-selection {
    background-color: var(--clr-text);
    color: var(--clr-bg);
}

/* Focus visible for keyboard navigation */
:focus-visible {
    outline: 2px solid var(--clr-text-dim);
    outline-offset: 4px;
}