CSS

:root {
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --bg-body: #f1f5f9;
    --text-main: #0f172a;
    --text-muted: #475569;
    --white: #ffffff;
    --border: #e2e8f0;
}

* { box-sizing: border-box; }
body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-body);
    color: var(--text-main);
    margin: 0;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.wrapper { max-width: 1200px; margin: 0 auto; width: 100%; padding: 0 20px; }

header { background: var(--white); border-bottom: 1px solid var(--border); padding: 1.2rem 0; }
.header-content { display: flex; justify-content: space-between; align-items: center; }
.logo { font-size: 1.5rem; font-weight: 800; color: var(--primary); text-decoration: none; }
nav a { text-decoration: none; color: var(--text-muted); font-weight: 500; margin-left: 20px; }

.ad-container { display: flex; justify-content: center; align-items: center; background: #eef2f6; border: 1px dashed #cbd5e1; color: #94a3b8; font-size: 0.8rem; text-transform: uppercase; font-weight: bold; }
.header-ad { width: 100%; height: 90px; margin: 30px 0; }
.footer-ad { width: 100%; max-width: 728px; height: 90px; margin: 40px auto; }
.sidebar-ad { width: 300px; height: 600px; position: sticky; top: 20px; }

.main-grid { display: grid; grid-template-columns: 1fr 300px; gap: 40px; margin-bottom: 50px; }
.content-card { background: var(--white); padding: 40px; border-radius: 16px; box-shadow: 0 10px 15px -3px rgba(0,0,0,0.05); }

h1 { font-size: 2.5rem; margin-bottom: 20px; }
p { line-height: 1.8; color: var(--text-muted); }

footer { background: #0f172a; color: #94a3b8; padding: 50px 0; margin-top: auto; text-align: center; }
.footer-nav { margin-bottom: 20px; }
.footer-nav a { color: #f8fafc; text-decoration: none; margin: 0 15px; font-size: 0.9rem; }

@media (max-width: 992px) { .main-grid { grid-template-columns: 1fr; } .sidebar-ad { display: none; } }

.file-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    margin-top: 10px;
    font-size: 0.9rem;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.status {
    font-weight: 600;
}