:root {
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --disabled: #9ca3af;
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    margin: 0;
    padding: 0;
    line-height: 1.6;
}

header {
    background: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    padding: 20px;
    text-align: center;
}

header h1 {
    margin: 0 0 10px 0;
    font-size: 24px;
    color: var(--primary);
}

.header-ads, .footer-ads, .mobile-extra-ads {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    max-width: 1200px;
    margin: 20px auto;
    padding: 0 15px;
}

.mobile-extra-ads {
    display: none;
}

.main-layout {
    display: grid;
    grid-template-columns: 260px 1fr 260px;
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

aside {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.content-area {
    background-color: var(--card-bg);
    padding: 30px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 6px rgba(0,0,0,0.02);
}

.content-area h2 {
    margin-top: 0;
    color: var(--text-main);
    font-size: 20px;
}

.text-block {
    margin-bottom: 25px;
    font-size: 15px;
    color: #334155;
}

.ad-box {
    background: linear-gradient(135deg, #eff6ff 0%, #f0fdf4 100%);
    border: 1px dashed var(--primary);
    border-radius: 8px;
    padding: 15px;
    text-align: left;
    box-shadow: 0 2px 4px rgba(0,0,0,0.01);
    transition: transform 0.2s;
}

.ad-box:hover {
    transform: translateY(-2px);
}

.ad-badge {
    display: inline-block;
    background-color: var(--primary);
    color: white;
    font-size: 9px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 2px 6px;
    border-radius: 4px;
    margin-bottom: 6px;
}

.ad-title {
    font-size: 14px;
    font-weight: bold;
    margin: 0 0 4px 0;
    color: var(--text-main);
}

.ad-desc {
    font-size: 12px;
    color: var(--text-muted);
    margin: 0 0 10px 0;
}

.ad-link {
    font-size: 12px;
    font-weight: 600;
    color: var(--primary);
    text-decoration: none;
    display: inline-block;
}

.ad-link:hover {
    text-decoration: underline;
}

.action-section {
    background: #f1f5f9;
    border-radius: 8px;
    padding: 20px;
    text-align: center;
    margin-top: 30px;
    border: 1px solid var(--border-color);
}

.action-btn {
    background-color: var(--primary);
    color: white;
    border: none;
    border-radius: 6px;
    padding: 14px 28px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    width: 100%;
    max-width: 350px;
    box-shadow: 0 4px 10px rgba(37, 99, 235, 0.2);
    transition: background-color 0.2s;
}

.action-btn:hover:not(:disabled) {
    background-color: var(--primary-hover);
}

.action-btn:disabled {
    background-color: var(--disabled);
    cursor: not-allowed;
    box-shadow: none;
}

#timer-text {
    margin-top: 10px;
    font-size: 13px;
    color: var(--text-muted);
}

.maintenance-box {
    background-color: #fef3c7;
    border: 1px solid #f59e0b;
    color: #92400e;
    padding: 20px;
    border-radius: 8px;
    text-align: center;
    font-weight: 600;
    margin-bottom: 25px;
}

@media (max-width: 1024px) {
    .main-layout {
        grid-template-columns: 1fr;
    }
    .desktop-only {
        display: none !important;
    }
    .mobile-extra-ads {
        display: grid;
    }
}