/* ===========================
   CSS Variables & Reset
   =========================== */

:root {
    /* Colors */
    --color-bg: #000000;
    --color-text: #FFD4E5;
    --color-text-secondary: #FFB3D1;
    --color-accent: #FFD4E5;
    --color-border: #333333;

    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    --font-size-base: 16px;
    --font-size-small: 14px;
    --font-size-large: 20px;
    --font-size-hero: clamp(32px, 5vw, 64px);

    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 48px;
    --spacing-xl: 72px;

    /* Layout */
    --max-width: 1200px;
    --header-height: 80px;
}

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

/* ===========================
   Base Styles
   =========================== */

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    min-height: 100vh;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--color-text-secondary);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ===========================
   Header Navigation
   =========================== */

.site-header {
    position: sticky;
    top: 0;
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: var(--spacing-md) var(--spacing-lg);
    z-index: 1000;
}

.header-content {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-left {
    display: flex;
    align-items: baseline;
    gap: var(--spacing-sm);
}

.site-title {
    font-size: var(--font-size-large);
    font-weight: 700;
    letter-spacing: 0.5px;
}

.site-title a {
    color: var(--color-text);
}

.site-subtitle {
    font-size: var(--font-size-small);
    color: var(--color-text-secondary);
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.main-nav {
    display: flex;
    align-items: baseline;
    gap: var(--spacing-md);
}

.nav-link {
    font-size: var(--font-size-small);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: var(--spacing-xs) 0;
    border-bottom: 2px solid transparent;
    transition: border-color 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    border-bottom-color: var(--color-text);
}

/* ===========================
   Dropdown Menu
   =========================== */

.dropdown {
    position: relative;
    display: flex;
    align-items: baseline;
}

.dropdown-toggle {
    cursor: pointer;
    display: inline-block;
}

.dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    min-width: 200px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    margin-top: 0;
    padding-top: var(--spacing-xs);
}

.dropdown:hover .dropdown-menu,
.dropdown-menu:hover {
    display: block;
}

.dropdown-item {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-small);
    font-weight: 500;
    color: var(--color-text);
    text-decoration: none;
    transition: background-color 0.3s ease;
    border-bottom: 1px solid var(--color-border);
}

.dropdown-item:last-child {
    border-bottom: none;
}

.dropdown-item:hover {
    background-color: var(--color-text);
    color: var(--color-bg);
}

/* ===========================
   Footer
   =========================== */

.site-footer {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
    margin-top: var(--spacing-xl);
}

.footer-social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm);
    transition: opacity 0.3s ease;
}

.footer-social-link:hover {
    opacity: 0.6;
}

.footer-social-link svg {
    stroke: var(--color-text);
}

/* ===========================
   Typography
   =========================== */

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

p {
    margin-bottom: var(--spacing-sm);
}

/* ===========================
   Utilities
   =========================== */

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

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

/* ===========================
   Responsive Design
   =========================== */

@media (max-width: 768px) {
    :root {
        --spacing-lg: 24px;
        --spacing-xl: 48px;
        --header-height: 60px;
    }

    .site-header {
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .header-left {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
    }

    .site-title {
        font-size: var(--font-size-base);
    }

    .site-subtitle {
        font-size: 12px;
    }

    .main-nav {
        gap: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .nav-link {
        font-size: 12px;
    }

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