/* World Atlas Styles - Dark Theme Redesign */

:root {
    --atlas-bg: #000011;
    --atlas-text: #e2e2e6;
    --atlas-text-muted: #a0a0a0;
    --atlas-primary: #4caf50;
    --atlas-secondary: #64b5f6;
    --atlas-accent: #ff9800;

    /* Glassmorphism Variables */
    --glass-bg: rgba(30, 30, 30, 0.6);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    --glass-blur: 20px;
}

body {
    background-color: var(--atlas-bg);
    color: var(--atlas-text);
    font-family: 'Lexend', sans-serif;
    line-height: 1.6;
    margin: 0;
    min-height: 100vh;
    background-image:
        radial-gradient(circle at 15% 50%, rgba(76, 175, 80, 0.08), transparent 25%),
        radial-gradient(circle at 85% 30%, rgba(64, 196, 255, 0.08), transparent 25%);
}

/* Navigation */
.main-nav {
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-weight: 700;
    font-size: 1.5rem;
    text-decoration: none;
    color: white;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-link {
    text-decoration: none;
    color: var(--atlas-text-muted);
    font-weight: 500;
    transition: color 0.2s;
}

.nav-link:hover,
.nav-link.active {
    color: var(--atlas-secondary);
}

/* Atlas Index */
.atlas-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1.5rem 4rem;
}

.atlas-header {
    text-align: center;
    color: var(--atlas-text-muted);
    font-size: 1.1rem;
}

.alphabet-nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 3rem;
    padding: 1rem;
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    box-shadow: var(--glass-shadow);
}

.alphabet-nav a {
    text-decoration: none;
    color: var(--atlas-text);
    font-weight: 600;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    transition: all 0.2s;
    border: 1px solid transparent;
}

.alphabet-nav a:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.countries-grid {
    display: grid;
    gap: 3rem;
}

.letter-section h2 {
    border-bottom: 1px solid var(--glass-border);
    padding-bottom: 0.5rem;
    margin-bottom: 1.5rem;
    color: var(--atlas-secondary);
    font-size: 2rem;
    display: inline-block;
}

.country-links {
    list-style: none;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1rem;
}

.country-links a {
    display: flex;
    align-items: center;
    gap: 1rem;
    text-decoration: none;
    color: var(--atlas-text);
    padding: 1rem;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 12px;
    border: 1px solid var(--glass-border);
    transition: all 0.2s;
}

.country-links a:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--atlas-secondary);
    transform: translateY(-3px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.country-links .flag {
    font-size: 1.5rem;
    line-height: 1;
}

.country-links .name {
    font-weight: 500;
}

/* Country Detail Page - Two Column Layout */
.country-detail {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem 1.5rem 4rem;
    display: grid;
    grid-template-columns: 350px 1fr;
    gap: 3rem;
    align-items: start;
}

/* Left Sidebar - Flag and Basic Info */
.country-hero {
    position: sticky;
    top: 90px;
    text-align: center;
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    padding: 2.5rem 1.5rem;
    border-radius: 24px;
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
}

.flag-large img {
    height: 180px;
    width: auto;
    max-width: 100%;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
    margin-bottom: 1.5rem;
    border: 2px solid rgba(255, 255, 255, 0.1);
}

.country-hero h1 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: white;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
    line-height: 1.2;
}

.quick-stats {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--glass-border);
}

.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.stat .label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--atlas-text-muted);
    margin-bottom: 0.5rem;
}

.stat .value {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--atlas-secondary);
}

/* Right Content Area */
.country-content {
    display: grid;
    gap: 2rem;
    min-width: 0;
}

.fact-section {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    padding: 2.5rem;
    border-radius: 20px;
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
}

.fact-section h2 {
    color: var(--atlas-secondary);
    margin-bottom: 1.5rem;
    font-size: 1.8rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.fact-section h3 {
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: var(--atlas-primary);
    font-size: 1.3rem;
}

.fact-section p {
    margin-bottom: 1rem;
    line-height: 1.8;
}

.fact-list {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 1rem 3rem;
}

.fact-list dt {
    font-weight: 600;
    color: var(--atlas-text-muted);
}

.fact-list dd {
    margin: 0;
    font-weight: 400;
}

.back-link {
    margin-top: 2rem;
    text-align: center;
}

.back-link a {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    background: rgba(255, 255, 255, 0.05);
    color: white;
    text-decoration: none;
    border-radius: 50px;
    border: 1px solid var(--glass-border);
    transition: all 0.3s;
    font-weight: 600;
}

.back-link a:hover {
    background: var(--atlas-secondary);
    border-color: var(--atlas-secondary);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(100, 181, 246, 0.4);
}

.site-footer {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--atlas-text-muted);
    border-top: 1px solid var(--glass-border);
    margin-top: auto;
    background: rgba(0, 0, 0, 0.3);
}

.site-footer a {
    color: var(--atlas-secondary);
    text-decoration: none;
    transition: color 0.2s;
}

.site-footer a:hover {
    color: white;
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .country-detail {
        grid-template-columns: 300px 1fr;
        gap: 2rem;
    }
}

@media (max-width: 968px) {
    .country-detail {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .country-hero {
        position: static;
        margin-bottom: 2rem;
    }

    .country-hero h1 {
        font-size: 2.5rem;
    }

    .flag-large img {
        height: 140px;
    }

    .quick-stats {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 2rem;
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .atlas-header h1 {
        font-size: 2.5rem;
    }

    .country-hero h1 {
        font-size: 2rem;
    }

    .quick-stats {
        gap: 1.5rem;
    }

    .fact-list {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }

    .fact-list dt {
        margin-top: 1rem;
        color: var(--atlas-secondary);
        font-size: 0.9rem;
        text-transform: uppercase;
        letter-spacing: 1px;
    }

    .fact-section {
        padding: 1.5rem;
    }
}