/* OozyJoy Portal CSS */

:root {
    --primary-gradient-start: #667eea;
    --primary-gradient-end: #764ba2;
    --card-bg: #ffffff;
    --card-shadow: rgba(0, 0, 0, 0.1);
    --card-shadow-hover: rgba(102, 126, 234, 0.3);
    --text-primary: #2d3748;
    --text-secondary: #718096;
    --text-muted: #a0aec0;
    --accent-color: #667eea;
    --warning-bg: #fff3cd;
    --warning-text: #856404;
    --body-bg: #f7fafc;
    --gradient-opacity: 0.05;
    --border-color: rgba(102, 126, 234, 0.1);
}

/* Dark Mode Colors */
@media (prefers-color-scheme: dark) {
    :root {
        --primary-gradient-start: #a5b4fc;
        --primary-gradient-end: #c4b5fd;
        --card-bg: #1e293b;
        --card-shadow: rgba(0, 0, 0, 0.3);
        --card-shadow-hover: rgba(165, 180, 252, 0.4);
        --text-primary: #f1f5f9;
        --text-secondary: #cbd5e1;
        --text-muted: #94a3b8;
        --accent-color: #a5b4fc;
        --warning-bg: #422006;
        --warning-text: #fcd34d;
        --body-bg: #0f172a;
        --gradient-opacity: 0.15;
        --border-color: rgba(165, 180, 252, 0.2);
    }
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: var(--body-bg);
    color: var(--text-primary);
    overflow-x: hidden;
    min-height: 100vh;
}

/* Animated Gradient Background */
.gradient-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg,
        var(--primary-gradient-start) 0%,
        var(--primary-gradient-end) 100%);
    opacity: var(--gradient-opacity);
    z-index: 0;
}

.gradient-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 50%, rgba(102, 126, 234, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(118, 75, 162, 0.1) 0%, transparent 50%);
    animation: pulse 10s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.6;
    }
}

/* Portal Container */
.portal-container {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.portal-content {
    max-width: 1200px;
    width: 100%;
    animation: fadeInUp 0.8s ease-out;
}

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

/* Header Section */
.portal-header {
    text-align: center;
    margin-bottom: 3rem;
}

.portal-title {
    font-size: 4rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-gradient-start), var(--primary-gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
    letter-spacing: -1px;
}

.portal-subtitle {
    font-size: 1.5rem;
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 1.5rem;
}

.portal-divider {
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-gradient-start), var(--primary-gradient-end));
    margin: 1.5rem auto;
    border-radius: 2px;
}

.portal-description {
    font-size: 1.1rem;
    color: var(--text-muted);
    font-weight: 400;
}

/* Language Grid */
.language-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

/* Language Cards */
.language-card {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 2rem;
    text-decoration: none;
    color: var(--text-primary);
    box-shadow: 0 4px 6px var(--card-shadow);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    cursor: pointer;
    border: 2px solid transparent;
}

.language-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-gradient-start), var(--primary-gradient-end));
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 0;
}

.language-card:hover::before {
    opacity: 0.05;
}

.language-card:hover {
    box-shadow: 0 12px 24px var(--card-shadow-hover);
    border-color: var(--accent-color);
}

.card-inner {
    position: relative;
    z-index: 1;
    text-align: center;
}

.flag-emoji {
    font-size: 4rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
    min-height: 4rem;
}

/* Twemoji image styling for cross-platform compatibility */
.flag-emoji img.emoji {
    height: 4rem !important;
    width: 4rem !important;
    vertical-align: middle;
    margin: 0;
    display: inline-block;
}

.lang-name {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
}

.lang-native {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 0.75rem;
}

.lang-description {
    font-size: 0.875rem;
    color: var(--text-muted);
    line-height: 1.5;
    margin-bottom: 1rem;
    min-height: 3em;
}

.card-arrow {
    font-size: 1.5rem;
    color: var(--accent-color);
    font-weight: 700;
    opacity: 0;
    transform: translateX(-10px);
    transition: all 0.3s ease;
}

.language-card:hover .card-arrow {
    opacity: 1;
    transform: translateX(0);
}

/* Footer Section */
.portal-footer {
    text-align: center;
    padding: 2rem 1rem;
    border-top: 2px solid var(--border-color);
}

.notice-text {
    background-color: var(--warning-bg);
    color: var(--warning-text);
    padding: 1rem 1.5rem;
    border-radius: 8px;
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    display: inline-block;
    border-left: 4px solid #ffc107;
}

.credits {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.credits a {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.credits a:hover {
    color: var(--primary-gradient-end);
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 768px) {
    .portal-title {
        font-size: 2.5rem;
    }

    .portal-subtitle {
        font-size: 1.2rem;
    }

    .language-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .language-card {
        padding: 1.5rem;
    }

    .flag-emoji {
        font-size: 3rem;
        min-height: 3rem;
    }

    .flag-emoji img.emoji {
        height: 3rem !important;
        width: 3rem !important;
    }

    .portal-container {
        padding: 1rem;
    }
}

@media (max-width: 480px) {
    .portal-title {
        font-size: 2rem;
    }

    .portal-subtitle {
        font-size: 1rem;
    }

    .portal-description {
        font-size: 0.95rem;
    }
}

/* Accessibility */
.language-card:focus {
    outline: 3px solid var(--accent-color);
    outline-offset: 2px;
}

.language-card:focus:not(:focus-visible) {
    outline: none;
}

/* Print styles */
@media print {
    .gradient-bg {
        display: none;
    }

    .language-card {
        page-break-inside: avoid;
    }
}