:root {
    --font-primary: "Poppins", sans-serif;
    --black: #111;
    --white: #fff;
    --primary-color: #3498db;
    --primary-hover: #2980b9;
    --gray-bg: #f4f6f9;
    --gray-card: #f8f9fa;
    --gray-border: #e2e8f0;
    --gray-text: #7f8c8d;
    --danger: #ff4d4d;
    --danger-bg: #fff5f5;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: var(--font-primary);
}

body {
    background-color: var(--gray-bg);
    color: var(--black);
    padding: 40px 20px;
}

.container {
    max-width: 900px;
    margin: 0 auto;
}

.search-section {
    margin-bottom: 25px;
}

.search-section input {
    width: 100%;
    padding: 15px 20px;
    font-size: 16px;
    border: 1px solid var(--gray-border);
    border-radius: 10px;
    background-color: var(--white);
    box-shadow: 0 4px 6px rgba(0,0,0,0.02);
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.search-section input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.1);
}

.results-wrapper {
    background: var(--white);
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    padding: 30px;
}

.results-header {
    color: #2c3e50;
    margin-bottom: 20px;
    border-bottom: 2px solid #ecf0f1;
    padding-bottom: 10px;
    font-size: 20px;
}

.file-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    background: var(--gray-card);
    border: 1px solid var(--gray-border);
    border-radius: 8px;
    margin-bottom: 12px;
    transition: transform 0.2s, box-shadow 0.2s;
}

.file-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.04);
}

.file-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.file-name {
    font-weight: 600;
    color: #2c3e50;
    font-size: 15px;
    word-break: break-all;
}

.file-meta {
    font-size: 13px;
    color: var(--gray-text);
}

.file-meta strong {
    color: #34495e;
}

.file-actions {
    display: flex;
    gap: 10px;
}

.btn {
    text-decoration: none;
    font-size: 13px;
    font-weight: 600;
    padding: 8px 16px;
    border-radius: 6px;
    transition: all 0.2s;
    display: inline-block;
    text-align: center;
}

.download-btn {
    background: var(--primary-color);
    color: var(--white);
}

.download-btn:hover {
    background: var(--primary-hover);
}

.delete-btn {
    background: var(--white);
    color: var(--danger);
    border: 1px solid #ffebeb;
}

.delete-btn:hover {
    background: var(--danger-bg);
    border-color: var(--danger);
}

.no-data-container {
    text-align: center;
    padding: 30px 10px;
}

.no-data-text {
    color: var(--gray-text);
    font-size: 15px;
}
.hidden-file {
    display: none !important;
}
.login-required-container {
    text-align: center;
    background: white;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    max-width: 500px;
    margin: 100px auto;
}
.login-btn {
    display: inline-block;
    margin-top: 20px;
    padding: 12px 24px;
    background: #111;
    color: #fff;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: background 0.2s;
}
.login-btn:hover {
    background: #333;
    color: #fff;
}