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

:root {
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --bg-tertiary: #21262d;
    --text-primary: #c9d1d9;
    --text-secondary: #8b949e;
    --accent: #58a6ff;
    --accent-hover: #4493e6;
    --border: #30363d;
    --success: #3fb950;
    --error: #f85149;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
}

.login-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 20px;
}

.login-container h1 {
    margin-bottom: 24px;
    font-size: 28px;
    font-weight: 600;
}

.login-container form {
    width: 100%;
    max-width: 340px;
    padding: 24px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
}

.admin-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.admin-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
}

.admin-header h1 {
    font-size: 20px;
    font-weight: 600;
}

.admin-content {
    flex: 1;
    padding: 24px;
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
}

.toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.toolbar h2 {
    font-size: 24px;
    font-weight: 600;
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    font-size: 14px;
}

.form-group input[type="text"],
.form-group input[type="password"],
.form-group input[type="datetime-local"],
.form-group input[type="file"] {
    width: 100%;
    padding: 10px 12px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 14px;
}

.form-group input:focus {
    outline: none;
    border-color: var(--accent);
}

.form-group small {
    display: block;
    margin-top: 6px;
    color: var(--text-secondary);
    font-size: 12px;
}

.btn-primary {
    padding: 10px 20px;
    background: var(--accent);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

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

.btn-secondary {
    padding: 10px 20px;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: background 0.2s;
    display: inline-block;
}

.btn-secondary:hover {
    background: var(--bg-secondary);
}

.btn-logout {
    padding: 8px 16px;
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 14px;
    text-decoration: none;
    transition: all 0.2s;
}

.btn-logout:hover {
    color: var(--text-primary);
    border-color: var(--text-secondary);
}

.btn-small {
    padding: 6px 12px;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: 13px;
    text-decoration: none;
    cursor: pointer;
    transition: background 0.2s;
}

.btn-small:hover {
    background: var(--bg-secondary);
}

.error-box {
    padding: 12px 16px;
    background: rgba(248, 81, 73, 0.15);
    border: 1px solid var(--error);
    border-radius: 6px;
    color: var(--error);
    margin-bottom: 20px;
    font-size: 14px;
}

.success-box {
    padding: 12px 16px;
    background: rgba(63, 185, 80, 0.15);
    border: 1px solid var(--success);
    border-radius: 6px;
    color: var(--success);
    margin-bottom: 20px;
    font-size: 14px;
}

.empty-state {
    padding: 40px 20px;
    text-align: center;
    color: var(--text-secondary);
    font-size: 15px;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
}

.data-table thead {
    background: var(--bg-tertiary);
}

.data-table th {
    padding: 12px 16px;
    text-align: left;
    font-weight: 600;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
}

.data-table td {
    padding: 12px 16px;
    border-top: 1px solid var(--border);
    font-size: 14px;
}

.data-table tbody tr:hover {
    background: var(--bg-tertiary);
}

.data-table code {
    padding: 2px 6px;
    background: var(--bg-tertiary);
    border-radius: 3px;
    font-size: 12px;
    color: var(--accent);
}

.card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 24px;
    margin-bottom: 24px;
}

.card h2 {
    font-size: 18px;
    margin-bottom: 20px;
    font-weight: 600;
}

.stats {
    display: flex;
    gap: 24px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

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

.stat-label {
    font-size: 13px;
    color: var(--text-secondary);
}

.stat-value {
    font-size: 16px;
    font-weight: 600;
}

.upload-form {
    margin-top: 20px;
}

.success-card {
    background: rgba(63, 185, 80, 0.1);
    border-color: var(--success);
}

.success-card h2 {
    color: var(--success);
}

.link-display {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.link-url input {
    width: 100%;
    padding: 10px 12px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 13px;
    margin-top: 8px;
    font-family: 'Courier New', monospace;
}

.link-token {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.link-token code {
    padding: 10px 12px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 13px;
    word-break: break-all;
}

.link-token small {
    color: #f0883e;
    font-weight: 500;
}

.qr-code {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 20px;
}

.qr-code img {
    max-width: 300px;
    border-radius: 8px;
    background: white;
    padding: 10px;
}

.status-active {
    color: var(--success);
}

.status-expired {
    color: var(--text-secondary);
}

.form-box {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 24px;
    max-width: 600px;
}

.form-group textarea {
    width: 100%;
    padding: 10px 12px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
    resize: vertical;
}

.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
}

.filter-box {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 24px;
}

.filter-form {
    display: flex;
    gap: 16px;
    align-items: flex-end;
    flex-wrap: wrap;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    min-width: 180px;
    flex: 1;
}

.filter-group label {
    font-weight: 500;
    font-size: 13px;
    color: var(--text-secondary);
}

.filter-group select,
.filter-group input[type="date"] {
    width: 100%;
    padding: 8px 12px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 14px;
}

.filter-group select:focus,
.filter-group input[type="date"]:focus {
    outline: none;
    border-color: var(--accent);
}

.filter-actions {
    display: flex;
    gap: 8px;
    align-items: center;
}

.btn-filter {
    padding: 8px 16px;
    background: var(--accent);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

.btn-filter:hover {
    background: var(--accent-hover);
}

.btn-reset {
    padding: 8px 16px;
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 14px;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-reset:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

.create-sermon-form {
    margin-top: 20px;
}

.form-row-2col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 16px;
}

@media (max-width: 768px) {
    .admin-content {
        padding: 16px;
    }

    .toolbar {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }

    .data-table {
        font-size: 13px;
    }

    .data-table th,
    .data-table td {
        padding: 8px 12px;
    }

    .stats {
        flex-direction: column;
        gap: 12px;
    }

    .filter-form {
        flex-direction: column;
        align-items: stretch;
    }

    .filter-group {
        min-width: 100%;
    }

    .filter-actions {
        width: 100%;
    }

    .btn-filter,
    .btn-reset {
        flex: 1;
    }

    .form-row-2col {
        grid-template-columns: 1fr;
    }
}