@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');

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

:root {
    --primary-dark: #0a1929;
    --secondary-dark: #132f4c;
    --tertiary-dark: #1e3a5f;
    --accent-blue: #2e7de9;
    --accent-light: #5ba8ff;
    --accent-glow: #1c5cb8;
    --text-primary: #ffffff;
    --text-secondary: #b0bec5;
    --success: #4caf50;
    --error: #f44336;
    --warning: #ff9800;
}

body {
    font-family: 'Poppins', sans-serif;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--secondary-dark) 100%);
    color: var(--text-primary);
    overflow-x: hidden;
}

/* ==================== ANIMATIONS ==================== */
@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.1); opacity: 0.8; }
}

@keyframes shimmer {
    0% { background-position: 0% center; }
    100% { background-position: 200% center; }
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

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

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

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

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

/* ==================== LOADING SCREEN ==================== */
#loadingScreen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #0a1929 0%, #1a2332 50%, #0a1929 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    transition: opacity 0.5s, visibility 0.5s;
}

#loadingScreen.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.loading-logo {
    font-size: 64px;
    margin-bottom: 30px;
    animation: pulse 2s infinite;
}

.loading-text {
    font-size: 28px;
    font-weight: 600;
    background: linear-gradient(90deg, #2e7de9, #5ba8ff, #2e7de9);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: shimmer 3s linear infinite;
    margin-bottom: 20px;
}

.loading-subtitle {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.loader {
    width: 60px;
    height: 60px;
    border: 4px solid var(--tertiary-dark);
    border-top: 4px solid var(--accent-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* ==================== SERVER OFFLINE SCREEN ==================== */
#offlineScreen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #0a1929 0%, #1a2332 100%);
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    padding: 40px;
}

#offlineScreen.active {
    display: flex;
}

.offline-icon {
    font-size: 120px;
    color: var(--warning);
    margin-bottom: 30px;
    animation: float 3s ease-in-out infinite;
}

.offline-title {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 20px;
    text-align: center;
}

.offline-message {
    font-size: 18px;
    color: var(--text-secondary);
    text-align: center;
    max-width: 600px;
    line-height: 1.6;
    margin-bottom: 40px;
}

.contact-card {
    background: var(--secondary-dark);
    padding: 30px 40px;
    border-radius: 20px;
    border: 2px solid var(--tertiary-dark);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    margin-bottom: 30px;
}

.contact-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--accent-light);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 12px 0;
    font-size: 16px;
}

.contact-item i {
    color: var(--accent-blue);
    font-size: 20px;
    width: 30px;
}

.contact-item a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.3s;
}

.contact-item a:hover {
    color: var(--accent-light);
}

.retry-btn {
    padding: 15px 40px;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-glow));
    border: none;
    border-radius: 50px;
    color: white;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.3s, box-shadow 0.3s;
    box-shadow: 0 4px 20px rgba(46, 125, 233, 0.4);
}

.retry-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 30px rgba(46, 125, 233, 0.6);
}

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

/* ==================== SCROLLBAR ==================== */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--primary-dark);
}

::-webkit-scrollbar-thumb {
    background: var(--tertiary-dark);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-blue);
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 768px) {
    .loading-text {
        font-size: 22px;
    }

    .offline-title {
        font-size: 28px;
    }

    .offline-message {
        font-size: 16px;
    }

    .offline-icon {
        font-size: 80px;
    }

    .contact-card {
        padding: 20px 25px;
    }
}

@media (max-width: 480px) {
    .loading-logo {
        font-size: 48px;
    }

    .loading-text {
        font-size: 20px;
    }

    .offline-title {
        font-size: 24px;
    }

    .offline-message {
        font-size: 14px;
        padding: 0 15px;
    }

    .contact-card {
        padding: 15px 20px;
    }

    .contact-item {
        font-size: 14px;
    }
}