/* =========================================
   ERICGAMEPlay.com - Design System
   COLORFUL LIGHT THEME FOR CHILDREN
   Neurodivergent-Friendly with High Contrast
   ========================================= */

/* CSS Custom Properties - Light Theme (Default) */
:root {
    /* === PRIMARY COLORS FROM LOGO === */
    --color-yellow: #F7B924;
    --color-green: #2ECC71;
    --color-blue: #3498DB;
    --color-red: #E74C3C;

    /* === BACKGROUNDS === */
    --color-bg-primary: #FFFFFF;
    --color-bg-secondary: #F8FAFC;
    --color-bg-tertiary: #EEF2F7;
    --color-bg-card: #FFFFFF;
    --color-bg-hover: #F0F4F8;

    /* === TEXT COLORS (High Contrast) === */
    --color-text-primary: #1A202C;
    --color-text-secondary: #4A5568;
    --color-text-muted: #718096;
    --color-text-light: #A0AEC0;

    /* === ACCENT COLORS === */
    --color-primary: #3498DB;
    --color-primary-hover: #2980B9;
    --color-secondary: #2ECC71;
    --color-secondary-hover: #27AE60;
    --color-accent: #F7B924;
    --color-accent-hover: #E5A91C;
    --color-danger: #E74C3C;
    --color-danger-hover: #C0392B;

    /* === BORDERS === */
    --color-border: #E2E8F0;
    --color-border-hover: #CBD5E0;
    --color-border-focus: #3498DB;

    /* === SHADOWS === */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);
    --shadow-color: 0 4px 14px rgba(52, 152, 219, 0.3);

    /* === GRADIENTS === */
    --gradient-rainbow: linear-gradient(135deg, #F7B924 0%, #2ECC71 25%, #3498DB 50%, #E74C3C 100%);
    --gradient-yellow: linear-gradient(135deg, #F7B924, #F5A623);
    --gradient-green: linear-gradient(135deg, #2ECC71, #27AE60);
    --gradient-blue: linear-gradient(135deg, #3498DB, #2980B9);
    --gradient-red: linear-gradient(135deg, #E74C3C, #C0392B);

    /* === TYPOGRAPHY === */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Outfit', 'Comic Sans MS', var(--font-primary);

    /* === SPACING === */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;

    /* === BORDER RADIUS === */
    --radius-sm: 0.375rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;

    /* === TRANSITIONS === */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;

    /* === LAYOUT === */
    --container-max: 1280px;
    --header-height: 70px;
}

/* === DARK MODE === */
[data-theme="dark"] {
    --color-bg-primary: #1A202C;
    --color-bg-secondary: #2D3748;
    --color-bg-tertiary: #4A5568;
    --color-bg-card: #2D3748;
    --color-bg-hover: #4A5568;

    --color-text-primary: #F7FAFC;
    --color-text-secondary: #E2E8F0;
    --color-text-muted: #A0AEC0;
    --color-text-light: #718096;

    --color-border: #4A5568;
    --color-border-hover: #718096;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);
}

/* === RESET & BASE === */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

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

a {
    color: inherit;
    text-decoration: none;
}

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

button {
    cursor: pointer;
    font-family: inherit;
}

ul,
ol {
    list-style: none;
}

/* === TYPOGRAPHY === */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-text-primary);
}

h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
}

h2 {
    font-size: clamp(1.5rem, 4vw, 2.5rem);
}

h3 {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
}

h4 {
    font-size: 1.25rem;
}

p {
    color: var(--color-text-secondary);
}

/* === CONTAINER === */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* === HEADER / NAVIGATION === */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: var(--color-bg-primary);
    border-bottom: 3px solid var(--color-rainbow, var(--color-blue));
    box-shadow: var(--shadow-md);
    z-index: 1000;
}

.header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-rainbow);
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

/* === LOGO === */
.logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-text-primary);
}

.logo-icon {
    width: 45px;
    height: 45px;
    border-radius: var(--radius-md);
    overflow: hidden;
}

.logo-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.logo-image {
    height: 50px;
    width: auto;
    object-fit: contain;
    transition: transform var(--transition-fast);
}

.logo-image:hover {
    transform: scale(1.05);
}

.logo-text {
    display: flex;
    gap: 0;
}

.logo-text .e {
    color: var(--color-yellow);
}

.logo-text .r {
    color: var(--color-green);
}

.logo-text .i {
    color: var(--color-blue);
}

.logo-text .c {
    color: var(--color-red);
}

.logo-text .rest {
    color: var(--color-text-primary);
}

/* === NAVIGATION MENU === */
.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
}

.nav-link {
    font-weight: 600;
    color: var(--color-text-secondary);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.nav-link:hover {
    color: var(--color-primary);
    background: var(--color-bg-hover);
}

.nav-link.active {
    color: var(--color-bg-primary);
    background: var(--color-primary);
}

/* === THEME TOGGLE === */
.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: var(--color-bg-tertiary);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: 1.25rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.theme-toggle:hover {
    border-color: var(--color-primary);
    transform: rotate(15deg);
}

/* === SEARCH BOX === */
.search-box {
    position: relative;
    width: 240px;
}

.search-input {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    padding-left: 2.5rem;
    background: var(--color-bg-tertiary);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-full);
    color: var(--color-text-primary);
    font-size: 0.875rem;
    outline: none;
    transition: all var(--transition-fast);
}

.search-input::placeholder {
    color: var(--color-text-muted);
}

.search-input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
}

.search-icon {
    position: absolute;
    left: var(--space-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-muted);
    width: 16px;
    height: 16px;
}

/* === MOBILE MENU TOGGLE === */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    padding: var(--space-sm);
}

.menu-toggle span {
    width: 24px;
    height: 3px;
    background: var(--color-text-primary);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

/* === MAIN CONTENT === */
main {
    padding-top: calc(var(--header-height) + var(--space-xl));
    min-height: 100vh;
}

/* === HERO SECTION === */
.hero {
    padding: var(--space-3xl) 0;
    text-align: center;
    background: var(--color-bg-primary);
    border-radius: var(--radius-xl);
    margin: var(--space-xl) auto;
    max-width: var(--container-max);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    background: var(--gradient-yellow);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    color: #1A202C;
    margin-bottom: var(--space-lg);
    box-shadow: var(--shadow-md);
}

.hero-title {
    margin-bottom: var(--space-lg);
    color: var(--color-text-primary);
}

.hero-title .highlight {
    background: var(--gradient-rainbow);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    max-width: 600px;
    margin: 0 auto var(--space-xl);
    font-size: 1.125rem;
    color: var(--color-text-secondary);
}

/* === BUTTONS === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    font-weight: 700;
    font-size: 1rem;
    border-radius: var(--radius-lg);
    border: none;
    transition: all var(--transition-normal);
    cursor: pointer;
}

.btn-primary {
    background: var(--gradient-blue);
    color: white;
    box-shadow: var(--shadow-color);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(52, 152, 219, 0.4);
}

.btn-secondary {
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
    border: 2px solid var(--color-border);
}

.btn-secondary:hover {
    background: var(--color-bg-hover);
    border-color: var(--color-primary);
}

.btn-success {
    background: var(--gradient-green);
    color: white;
}

.btn-warning {
    background: var(--gradient-yellow);
    color: #1A202C;
}

.btn-danger {
    background: var(--gradient-red);
    color: white;
}

/* === SECTION HEADERS === */
.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-xl);
    flex-wrap: wrap;
    gap: var(--space-md);
}

.section-title {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.section-icon {
    width: 56px;
    height: 56px;
    background: var(--gradient-blue);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    box-shadow: var(--shadow-md);
}

.section-icon.yellow {
    background: var(--gradient-yellow);
}

.section-icon.green {
    background: var(--gradient-green);
}

.section-icon.red {
    background: var(--gradient-red);
}

.view-all {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    color: var(--color-primary);
    font-weight: 600;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.view-all:hover {
    background: var(--color-bg-hover);
    gap: var(--space-sm);
}

/* === GAMES GRID === */
.games-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-lg);
}

/* === GAME CARD === */
.game-card {
    background: var(--color-bg-card);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-normal);
    position: relative;
}

.game-card:hover {
    transform: translateY(-8px);
    border-color: var(--color-primary);
    box-shadow: var(--shadow-lg);
}

.game-card-image {
    position: relative;
    aspect-ratio: 16/10;
    overflow: hidden;
}

.game-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.game-card:hover .game-card-image img {
    transform: scale(1.05);
}

.game-card-badge {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    padding: var(--space-xs) var(--space-sm);
    background: var(--color-bg-primary);
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--color-secondary);
    box-shadow: var(--shadow-md);
}

.game-card-content {
    padding: var(--space-lg);
}

.game-card-title {
    font-size: 1.125rem;
    margin-bottom: var(--space-sm);
    color: var(--color-text-primary);
}

.game-card:hover .game-card-title {
    color: var(--color-primary);
}

.game-card-description {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-md);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.game-card-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.game-card-difficulty {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.difficulty-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--color-border);
}

.difficulty-dot.easy {
    background: var(--color-green);
}

.difficulty-dot.medium {
    background: var(--color-yellow);
}

.difficulty-dot.hard {
    background: var(--color-red);
}

/* === CATEGORIES === */
.categories {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
    margin-bottom: var(--space-xl);
}

.category-btn {
    padding: var(--space-sm) var(--space-lg);
    background: var(--color-bg-card);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-full);
    color: var(--color-text-secondary);
    font-weight: 600;
    transition: all var(--transition-fast);
}

.category-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.category-btn.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
}

/* === AD PLACEHOLDERS === */
.ad-container {
    background: var(--color-bg-tertiary);
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted);
    font-size: 0.75rem;
    min-height: 90px;
}

.ad-leaderboard {
    width: 100%;
    max-width: 728px;
    height: 90px;
    margin: var(--space-xl) auto;
}

.ad-sidebar {
    width: 300px;
    height: 250px;
}

.ad-content-break {
    width: 100%;
    max-width: 336px;
    height: 280px;
    margin: var(--space-xl) auto;
}

/* === FOOTER === */
.footer {
    background: var(--color-bg-primary);
    border-top: 3px solid transparent;
    background-image: linear-gradient(var(--color-bg-primary), var(--color-bg-primary)), var(--gradient-rainbow);
    background-origin: padding-box, border-box;
    background-clip: padding-box, border-box;
    padding: var(--space-3xl) 0 var(--space-xl);
    margin-top: var(--space-3xl);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: var(--space-2xl);
    margin-bottom: var(--space-2xl);
}

.footer-brand {
    max-width: 320px;
}

.footer-brand p {
    margin-top: var(--space-md);
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.footer-title {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: var(--space-lg);
    color: var(--color-text-primary);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer-links a {
    color: var(--color-text-muted);
    font-size: 0.875rem;
    padding: var(--space-xs) 0;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-primary);
}

.footer-bottom {
    padding-top: var(--space-xl);
    border-top: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--space-md);
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.footer-social {
    display: flex;
    gap: var(--space-md);
}

.footer-social a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-full);
    font-size: 1.25rem;
    transition: all var(--transition-fast);
}

.footer-social a:hover {
    background: var(--color-primary);
    color: white;
    transform: translateY(-3px);
}

/* === RESPONSIVE === */
@media (max-width: 1024px) {
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .ad-sidebar {
        display: none;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: var(--color-bg-primary);
        padding: var(--space-xl);
        flex-direction: column;
        gap: var(--space-md);
        border-bottom: 1px solid var(--color-border);
        box-shadow: var(--shadow-lg);
    }

    .nav-menu.active {
        display: flex;
    }

    .menu-toggle {
        display: flex;
    }

    .search-box {
        width: 100%;
        order: -1;
    }

    .nav-link.active {
        background: var(--color-primary);
        color: white;
    }

    .hero {
        padding: var(--space-2xl) var(--space-md);
        margin: var(--space-md);
        border-radius: var(--radius-lg);
    }

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-brand {
        max-width: 100%;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .games-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-md);
    }

    .games-grid {
        grid-template-columns: 1fr;
    }

    .categories {
        overflow-x: auto;
        flex-wrap: nowrap;
        padding-bottom: var(--space-sm);
        -webkit-overflow-scrolling: touch;
    }

    .category-btn {
        flex-shrink: 0;
    }
}

/* === ANIMATIONS === */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

@keyframes bounce {

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

    50% {
        transform: translateY(-10px);
    }
}

@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.05);
    }
}

.animate-fade-in {
    animation: fadeIn 0.6s ease forwards;
}

.animate-bounce {
    animation: bounce 2s ease infinite;
}

.animate-pulse {
    animation: pulse 2s ease infinite;
}

/* Stagger animation delays */
.game-card:nth-child(1) {
    animation-delay: 0.1s;
}

.game-card:nth-child(2) {
    animation-delay: 0.15s;
}

.game-card:nth-child(3) {
    animation-delay: 0.2s;
}

.game-card:nth-child(4) {
    animation-delay: 0.25s;
}

.game-card:nth-child(5) {
    animation-delay: 0.3s;
}

.game-card:nth-child(6) {
    animation-delay: 0.35s;
}

.game-card:nth-child(7) {
    animation-delay: 0.4s;
}

.game-card:nth-child(8) {
    animation-delay: 0.45s;
}

/* === UTILITY CLASSES === */
.text-center {
    text-align: center;
}

.text-yellow {
    color: var(--color-yellow);
}

.text-green {
    color: var(--color-green);
}

.text-blue {
    color: var(--color-blue);
}

.text-red {
    color: var(--color-red);
}

.bg-yellow {
    background: var(--gradient-yellow);
}

.bg-green {
    background: var(--gradient-green);
}

.bg-blue {
    background: var(--gradient-blue);
}

.bg-red {
    background: var(--gradient-red);
}

.mb-0 {
    margin-bottom: 0;
}

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

.hidden {
    display: none;
}

/* === PAGE CONTENT (for static pages) === */
.page-content {
    background: var(--color-bg-card);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    margin: var(--space-xl) 0;
    box-shadow: var(--shadow-md);
}

.page-content h1 {
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-md);
    border-bottom: 3px solid var(--color-primary);
}

.page-content h2 {
    margin-top: var(--space-xl);
    margin-bottom: var(--space-md);
    color: var(--color-primary);
}

.page-content p {
    margin-bottom: var(--space-md);
    line-height: 1.8;
}

.page-content ul,
.page-content ol {
    margin-left: var(--space-xl);
    margin-bottom: var(--space-md);
}

.page-content li {
    margin-bottom: var(--space-sm);
    color: var(--color-text-secondary);
}

.page-content a {
    color: var(--color-primary);
    text-decoration: underline;
}

.page-content a:hover {
    color: var(--color-primary-hover);
}

/* === CONTACT FORM === */
.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: var(--space-lg);
}

.form-label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--space-sm);
    color: var(--color-text-primary);
}

.form-input,
.form-textarea {
    width: 100%;
    padding: var(--space-md);
    background: var(--color-bg-tertiary);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-size: 1rem;
    font-family: inherit;
    transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
}

.form-textarea {
    min-height: 150px;
    resize: vertical;
}