@import url('https://fonts.googleapis.com/css2?family=Press+Start+2P&display=swap');

/* ============================================
   CSS VARIABLES - RETRO GAMING THEME
   ============================================ */
:root {
    /* Primary Colors */
    --color-primary: #0044AA;
    --color-primary-light: #0088EE;
    --color-primary-dark: #0033AA;

    /* Accent Colors */
    --color-accent-gold: #FFD700;
    --color-accent-red: #DD0000;
    --color-accent-cyan: #00FFFF;
    --color-accent-yellow: #FFFF00;

    /* Neutral Colors */
    --color-black: #000000;
    --color-white: #FFFFFF;
    --color-gray: #888888;

    /* Typography */
    --font-primary: 'Press Start 2P', monospace;
    --font-size-title: clamp(24px, 5vw, 48px);
    --font-size-subtitle: clamp(10px, 2vw, 16px);
    --font-size-body: clamp(8px, 1.5vw, 12px);

    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;

    /* Borders & Shadows */
    --border-width: 4px;
    --border-radius: 8px;
    --shadow-default: 4px 4px 0px var(--color-black);
    --shadow-hover: 6px 6px 0px var(--color-black);
    --shadow-active: 2px 2px 0px var(--color-black);
}

/* ============================================
   GLOBAL RESET & BASE STYLES
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-primary);
    background: linear-gradient(180deg,
        var(--color-primary) 0%,
        #0066CC 50%,
        var(--color-primary-light) 100%);
    min-height: 100vh;
    color: var(--color-white);
    overflow-x: hidden;
    padding: var(--spacing-md);
}

/* ============================================
   PORTAL HEADER
   ============================================ */
.portal-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    animation: fadeInDown 0.6s ease-out;
}

.portal-title {
    font-size: var(--font-size-title);
    color: var(--color-accent-gold);
    text-shadow:
        3px 3px 0px #AA6600,
        4px 4px 0px var(--color-black);
    letter-spacing: 4px;
    margin-bottom: var(--spacing-sm);
}

.portal-subtitle {
    font-size: var(--font-size-subtitle);
    color: var(--color-accent-cyan);
    text-shadow: 2px 2px 0px var(--color-black);
    letter-spacing: 2px;
}

/* ============================================
   BREADCRUMB NAVIGATION
   ============================================ */
.breadcrumb {
    max-width: 1400px;
    margin: 0 auto var(--spacing-md);
    padding: 0 var(--spacing-md);
}

.back-link {
    display: inline-block;
    color: var(--color-accent-gold);
    text-decoration: none;
    font-family: var(--font-primary);
    font-size: clamp(8px, 1.5vw, 12px);
    text-shadow: 2px 2px 0px var(--color-black);
    transition: color 0.2s ease;
}

.back-link:hover {
    color: var(--color-accent-cyan);
}

/* ============================================
   CATEGORY GRID (HOME PAGE)
   ============================================ */
.category-grid {
    display: grid;
    gap: var(--spacing-xl);
    max-width: 900px;
    margin: 0 auto;
    padding: var(--spacing-md);
    grid-template-columns: 1fr;
}

@media (min-width: 768px) {
    .category-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Category Card */
.category-card {
    position: relative;
    background: rgba(0, 0, 0, 0.6);
    border: var(--border-width) solid var(--color-accent-gold);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-default);
    animation: fadeInUp 0.6s ease-out;
    animation-fill-mode: both;
    text-decoration: none;
    display: block;
    color: inherit;
    cursor: pointer;
}

.category-card:nth-child(1) { animation-delay: 0.1s; }
.category-card:nth-child(2) { animation-delay: 0.25s; }

.category-card:hover {
    transform: translate(-4px, -4px);
    box-shadow: var(--shadow-hover);
    border-color: var(--color-accent-cyan);
}

.category-card:active {
    transform: translate(2px, 2px);
    box-shadow: var(--shadow-active);
}

/* Category Card Thumbnail */
.category-card__thumbnail {
    position: relative;
    width: 100%;
    height: 0;
    padding-bottom: 75%;
    overflow: hidden;
    background: var(--color-black);
}

.category-card__thumbnail img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.category-card:hover .category-card__thumbnail img {
    transform: scale(1.1);
}

/* Category Card Overlay */
.category-card__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-sm);
    background: rgba(0, 0, 0, 0.6);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.category-card:hover .category-card__overlay {
    opacity: 1;
}

.category-card__icon {
    font-size: clamp(40px, 8vw, 64px);
}

.category-card__action {
    font-family: var(--font-primary);
    font-size: clamp(12px, 2.5vw, 18px);
    color: var(--color-accent-gold);
    text-shadow: 2px 2px 0px var(--color-black);
    letter-spacing: 3px;
}

/* Category Card Content */
.category-card__content {
    padding: var(--spacing-md);
    background: linear-gradient(180deg,
        rgba(0, 51, 170, 0.9) 0%,
        rgba(0, 68, 204, 0.9) 100%);
}

.category-card__content h2 {
    font-size: clamp(14px, 3vw, 22px);
    color: var(--color-white);
    text-shadow: 2px 2px 0px var(--color-black);
    margin-bottom: var(--spacing-xs);
    letter-spacing: 2px;
}

.category-card__content p {
    font-size: clamp(8px, 1.5vw, 11px);
    color: var(--color-accent-cyan);
    line-height: 1.8;
    margin-bottom: var(--spacing-sm);
}

/* ============================================
   GAMES GRID - RESPONSIVE LAYOUT
   ============================================ */
.games-grid {
    display: grid;
    gap: var(--spacing-lg);
    padding: var(--spacing-md);

    /* Mobile-first: 1 column */
    grid-template-columns: 1fr;
}

/* Tablet: 2 columns */
@media (min-width: 768px) {
    .games-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Desktop: 3 columns */
@media (min-width: 1024px) {
    .games-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ============================================
   SOCIAL LINKS
   ============================================ */
.social-links {
    text-align: center;
    margin-top: var(--spacing-xl);
}

.social-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-family: var(--font-primary);
    font-size: clamp(8px, 1.5vw, 12px);
    color: var(--color-white);
    text-decoration: none;
    background: #1877F2;
    border: var(--border-width) solid #1877F2;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-default);
    transition: all 0.3s ease;
    letter-spacing: 2px;
}

.social-link:hover {
    transform: translate(-2px, -2px);
    box-shadow: var(--shadow-hover);
    background: #166FE5;
    border-color: var(--color-accent-cyan);
}

.social-link:active {
    transform: translate(2px, 2px);
    box-shadow: var(--shadow-active);
}

.social-icon {
    width: 20px;
    height: 20px;
    fill: var(--color-white);
}

/* ============================================
   PORTAL FOOTER
   ============================================ */
.portal-footer {
    text-align: center;
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg);
    color: var(--color-white);
    font-size: var(--font-size-body);
    opacity: 0.8;
}

.portal-footer p {
    margin: var(--spacing-xs) 0;
    line-height: 1.8;
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.hidden {
    display: none !important;
}

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

.mt-lg {
    margin-top: var(--spacing-lg);
}

.mb-lg {
    margin-bottom: var(--spacing-lg);
}