/* Base Variables - Aligned with Greek Official Website */
:root {
    --primary-color: #b01313; /* MRC Official Red */
    --secondary-color: #e8b007; /* MRC Official Gold */
    --light-bg: #ffffff;
    --section-bg: #f5f5f5;
    --text-dark: #333333;
    --text-light: #ffffff;
    --text-muted: #666666;
    --border-color: #e0e0e0;
    --transition: all 0.3s ease;
}

/* Reset & Typography */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', Arial, sans-serif;
}

body {
    background-color: var(--light-bg);
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: var(--primary-color);
    transition: var(--transition);
}

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

ul {
    list-style: none;
}

.highlight {
    color: var(--primary-color);
}

/* Buttons */
.btn-primary, .btn-secondary {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 4px;
    font-weight: 600;
    letter-spacing: 1px;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-align: center;
}

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

.btn-primary:hover {
    background-color: #ffffff;
    color: var(--primary-color);
}

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

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: var(--text-light);
}

.btn-small {
    padding: 8px 16px;
    font-size: 0.9rem;
}

/* Navbar */
#navbar {
    position: sticky;
    top: 0;
    width: 100%;
    z-index: 1000;
    background: var(--light-bg);
    border-bottom: 2px solid var(--primary-color);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 6px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-box {
    background: #ffffff;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    padding: 4px 20px;
    border-radius: 8px;
}

.official-logo {
    height: 60px; /* Enlarged by 1.5x from 40px */
    margin-right: 0;
}

.logo-icon {
    font-size: 2.5rem;
    color: var(--secondary-color);
    position: relative;
}
.logo-icon::after {
    content: "🔴";
    position: absolute;
    top: -5px;
    right: -5px;
    font-size: 1.2rem;
}

.logo-text-main {
    color: var(--primary-color);
    font-weight: 800;
    font-size: 1.6rem;
    letter-spacing: 2px;
    line-height: 1.2;
}

.logo-text-sub {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 0.825rem !important; /* Shrunk to 75% of 1.1rem */
    letter-spacing: 0.5px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links a {
    font-weight: 600;
    font-size: 1rem;
    color: var(--text-dark);
}

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

.global-link {
    background: var(--section-bg);
    padding: 8px 16px;
    border-radius: 20px;
    border: 1px solid var(--border-color);
}

/* Hero Section */
.hero {
    background-color: var(--section-bg);
    padding: 80px 20px;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 1rem;
    text-transform: uppercase;
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Sections */
.section {
    padding: 80px 20px;
}

.dark-bg {
    background-color: var(--section-bg);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    text-align: center;
    font-weight: 800;
    color: var(--primary-color);
    text-transform: uppercase;
}

/* Category Table /* GRID SYSTEM (5x6 Layout) */
.grid-cards {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 15px;
    margin-top: 30px;
}

@media (max-width: 1200px) {
    .grid-cards {
        grid-template-columns: repeat(4, 1fr);
    }
}
@media (max-width: 900px) {
    .grid-cards {
        grid-template-columns: repeat(3, 1fr);
    }
}
@media (max-width: 600px) {
    .grid-cards {
        grid-template-columns: repeat(2, 1fr);
    }
}

.card {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    text-align: center;
    text-decoration: none;
    color: var(--text-dark);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 2px 10px rgba(0,0,0,0.03);
    display: flex;
    flex-direction: column;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(176, 19, 19, 0.15);
    border-color: var(--primary-color);
}

.card-img-wrapper {
    width: 100%;
    aspect-ratio: 1 / 1;
    background-color: #f4f4f4;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.card-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.card h3 {
    margin: 10px;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-dark);
    flex-grow: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 5px;
}

.card-icon {
    display: none; /* Removed old icons */
}

/* YOUTUBE EMBED */
.video-container {
    max-width: 800px;
    margin: 30px auto;
    position: relative;
    padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
    height: 0;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    border: 3px solid rgba(255,255,255,0.2);
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* Master Classification Table */
.classification-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 30px;
    background: white;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.classification-table th, .classification-table td {
    border: 1px solid var(--border-color);
    padding: 15px;
    text-align: left;
}

.classification-table th {
    background-color: var(--primary-color);
    color: white;
    font-weight: 600;
}

.classification-table tr:nth-child(even) {
    background-color: #fafafa;
}

/* =========================================
   聯絡我們 (Contact Us)
   ========================================= */
.contact-section {
    padding: 60px 0;
    text-align: center;
    background: var(--section-bg);
}

.social-container {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
    padding-top: 30px;
}

.social-card {
    text-decoration: none;
    color: var(--text-dark);
    perspective: 1000px;
    animation: floatingCard 4s ease-in-out infinite;
}

.social-card:nth-child(2) { animation-delay: 0.5s; }
.social-card:nth-child(3) { animation-delay: 1s; }

.card-inner {
    width: 140px;
    height: 160px;
    background: var(--light-bg);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
}

.card-inner::after {
    content: '';
    position: absolute;
    top: -100%;
    left: -100%;
    width: 300%;
    height: 300%;
    background: linear-gradient(45deg, transparent, rgba(176, 19, 19, 0.05), transparent);
    transition: 0.5s;
}

.icon-box {
    width: 60px;
    height: 60px;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.social-icon {
    width: 100%;
    height: 100%;
    object-fit: contain;
    fill: var(--primary-color);
    transition: transform 0.3s;
}

.social-card:hover .card-inner {
    transform: translateY(-10px) rotateX(10deg) scale(1.05);
    border-color: var(--primary-color);
    box-shadow: 0 10px 25px rgba(176, 19, 19, 0.2);
}

.social-card:hover .card-inner::after {
    top: -50%;
    left: -50%;
}

.social-card:hover .social-icon {
    transform: scale(1.1);
}

.social-card span {
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 1px;
    color: var(--text-dark);
}

@keyframes floatingCard {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* Footer */
footer {
    background: var(--primary-color);
    padding: 40px 20px 20px;
    color: white;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 40px;
    margin-bottom: 30px;
}

.footer-left h3 {
    color: var(--secondary-color);
    margin-bottom: 10px;
}

.footer-left p {
    color: #ffd6d6;
    font-size: 0.9rem;
}

.footer-right h4 {
    margin-bottom: 15px;
}

.footer-right ul li {
    margin-bottom: 10px;
}

.footer-right a {
    color: white;
    font-size: 0.9rem;
    text-decoration: underline;
}

.footer-right a:hover {
    color: var(--secondary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.2);
    font-size: 0.8rem;
}

/* =========================================
   Mobile Responsive Optimizations
========================================= */

@media (max-width: 900px) {
    .nav-container {
        flex-direction: column;
        gap: 15px;
        padding: 15px;
    }
    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: 1rem;
    }
    .hero h1 {
        font-size: 2.8rem;
    }
}

@media (max-width: 600px) {
    .official-logo {
        height: 45px;
    }
    .logo-text-main {
        font-size: 1.2rem;
    }
    .logo-text-sub {
        font-size: 0.75rem !important;
    }
    
    .hero {
        padding: 50px 15px;
    }
    .hero h1 {
        font-size: 2rem;
    }
    .hero p {
        font-size: 1rem;
    }
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    .hero-buttons .btn-primary, .hero-buttons .btn-secondary {
        width: 100%;
        box-sizing: border-box;
    }

    .section {
        padding: 50px 15px;
    }
    .section-title {
        font-size: 1.8rem;
    }
    
    .footer-content {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 25px;
    }

    /* Rules Pages Overrides */
    .rules-container {
        margin: 15px auto !important;
        padding: 20px !important;
        border-top-width: 3px !important;
    }
    .rules-container h1 {
        font-size: 1.6rem !important;
    }
    .original-link {
        font-size: 0.85rem !important;
        padding: 8px 12px !important;
    }
    .translated-content {
        padding: 15px !important;
        font-size: 1rem !important;
    }
    .translated-content h2 {
        font-size: 1.4rem !important;
        margin-top: 30px !important;
    }
    .translated-content h3 {
        font-size: 1.2rem !important;
        margin-top: 20px !important;
    }
    .raw-content {
        font-size: 0.8rem !important;
        padding: 10px !important;
    }
}

@media (max-width: 400px) {
    .grid-cards {
        grid-template-columns: 1fr;
    }
    .social-cards {
        grid-template-columns: 1fr !important;
    }
}