:root {
    --bg: #f5f7fa;
    --card-bg: #ffffff;
    --text-main: #0080ff;
    --text-sub: #71767b;
    --pdf-red: #e74c3c;
    --border: #ffffff;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
}


.wrapper {
    width: 100%;
    max-width: 750px;
    margin-top: 90px;
}

.header {
    text-align: center;
    margin-bottom: 40px;
}

.header h1 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 8px;
    color: #0080ff;
}

.header p {
    color: var(--text-sub);
    font-size: 16px;
}

/* Container */
.list {
    background: var(--card-bg);
    border-radius: 12px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}

/* Row */
.row {
    display: flex;
    align-items: center;
    padding: 18px 24px;
    border-bottom: 1px solid var(--border);
    transition: background 0.2s ease;
}

.row:last-child {
    border-bottom: none;
}

.row:hover {
    background-color: #fcfcfc;
}

/* PDF Icon Styling */
.pdf-icon {
    background: #fff5f5;
    color: var(--pdf-red);
    width: 48px;
    height: 48px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 20px;
}

/* Text details */
.details {
    flex-grow: 1;
}

.filename {
    display: block;
    font-weight: 600;
    font-size: 16px;
    margin-bottom: 4px;
    color: #0080ff;
}

.meta {
    font-size: 13px;
    color: var(--text-sub);
    font-weight: 400;
}

/* Download Button */
.btn-download {
    text-decoration: none;
    background: var(--text-main);
    color: white;
    font-weight: 600;
    font-size: 13px;
    padding: 10px 18px;
    border-radius: 8px;
    transition: opacity 0.2s;
}

.btn-download:hover {
    opacity: 0.85;
}

.footer {
    margin-top: 30px;
    text-align: center;
    color: var(--text-sub);
    font-size: 14px;
    line-height: 1.6;
}

.footer a { color: var(--pdf-red); text-decoration: none; }

/* Responsive */
@media (max-width: 600px) {
    .row { padding: 15px; }
    .pdf-icon { width: 40px; height: 40px; margin-right: 12px; }
    .filename { font-size: 14px; }
    .btn-download { padding: 8px 12px; font-size: 12px; }
}