:root {
    --bg: #0f1419;
    --surface: #1a2332;
    --border: #2d3a4d;
    --text: #e6edf3;
    --text-muted: #8b949e;
    --accent: #58a6ff;
    --accent-hover: #79b8ff;
    --success: #3fb950;
    --error: #f85149;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
}

/* Login */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.login-card {
    width: 100%;
    max-width: 360px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
}

.login-card h1 {
    margin: 0 0 0.25rem;
    font-size: 1.5rem;
}

.login-card .subtitle {
    margin: 0 0 1.5rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.login-card .error {
    color: var(--error);
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.login-card label {
    display: block;
    margin-bottom: 0.35rem;
    font-size: 0.875rem;
    color: var(--text-muted);
}

.login-card input {
    width: 100%;
    padding: 0.6rem 0.75rem;
    margin-bottom: 1rem;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text);
    font-size: 1rem;
}

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

.login-card button {
    width: 100%;
    padding: 0.7rem;
    background: var(--accent);
    border: none;
    border-radius: 6px;
    color: #fff;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
}

.login-card button:hover {
    background: var(--accent-hover);
}

/* Portal */
.portal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border);
    background: var(--surface);
}

.portal-header h1 {
    margin: 0;
    font-size: 1.25rem;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.status-badge {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.btn {
    padding: 0.5rem 1rem;
    border-radius: 6px;
    text-decoration: none;
    font-size: 0.9rem;
}

.btn-outline {
    color: var(--accent);
    border: 1px solid var(--border);
}

.btn-outline:hover {
    background: var(--surface);
    border-color: var(--accent);
}

.portal-main {
    max-width: 900px;
    margin: 0 auto;
    padding: 1.5rem;
}

.stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-bottom: 2rem;
}

.stat {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1.25rem;
    text-align: center;
}

.stat-value {
    display: block;
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--accent);
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.files-section h2 {
    margin: 0 0 1rem;
    font-size: 1.1rem;
}

.files-loading {
    color: var(--text-muted);
}

.files-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.file-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
}

.file-row.downloaded {
    border-left: 3px solid var(--success);
}

.file-name {
    font-family: ui-monospace, monospace;
    font-size: 0.9rem;
}

.file-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.file-size {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.file-status {
    font-size: 0.8rem;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
}

.file-status.done {
    background: rgba(63, 185, 80, 0.2);
    color: var(--success);
}

.file-status.pending {
    color: var(--text-muted);
}

.file-row a.download-btn {
    padding: 0.4rem 0.8rem;
    background: var(--accent);
    color: #fff;
    text-decoration: none;
    border-radius: 6px;
    font-size: 0.85rem;
}

.file-row a.download-btn:hover {
    background: var(--accent-hover);
}

.file-row a.download-btn.downloaded-link {
    background: var(--border);
    color: var(--text-muted);
}

.file-row a.download-btn.downloaded-link:hover {
    background: var(--text-muted);
    color: var(--surface);
}

/* Admin */
.admin-main {
    max-width: 720px;
}

.flash-messages {
    list-style: none;
    margin: 0 0 1rem;
    padding: 0;
}

.flash {
    padding: 0.6rem 1rem;
    border-radius: 6px;
    margin-bottom: 0.5rem;
}

.flash.success {
    background: rgba(63, 185, 80, 0.2);
    color: var(--success);
}

.flash.error {
    background: rgba(248, 81, 73, 0.2);
    color: var(--error);
}

.admin-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.admin-card h2 {
    margin: 0 0 1rem;
    font-size: 1rem;
}

.admin-form .form-row {
    margin-bottom: 1rem;
}

.admin-form label {
    display: block;
    margin-bottom: 0.35rem;
    font-size: 0.875rem;
    color: var(--text-muted);
}

.admin-form label .muted {
    font-weight: normal;
    color: var(--text-muted);
}

.admin-form input,
.admin-form select {
    width: 100%;
    max-width: 280px;
    padding: 0.5rem 0.75rem;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text);
    font-size: 1rem;
}

.admin-form .form-actions {
    display: flex;
    gap: 0.75rem;
    margin-top: 1rem;
}

.btn-primary {
    background: var(--accent);
    color: #fff;
    border: none;
    cursor: pointer;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-size: 0.9rem;
}

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

.btn-sm {
    padding: 0.35rem 0.65rem;
    font-size: 0.8rem;
}

.btn-danger {
    background: transparent;
    color: var(--error);
    border: 1px solid var(--error);
}

.btn-danger:hover {
    background: rgba(248, 81, 73, 0.2);
}

.inline-form {
    display: inline;
}

.table-wrap {
    overflow-x: auto;
}

.users-table {
    width: 100%;
    border-collapse: collapse;
}

.users-table th,
.users-table td {
    padding: 0.6rem 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.users-table th {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 600;
}

.users-table .actions {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.role-badge {
    display: inline-block;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-size: 0.8rem;
}

.role-badge.admin {
    background: rgba(88, 166, 255, 0.2);
    color: var(--accent);
}

.role-badge.user {
    background: rgba(139, 148, 158, 0.2);
    color: var(--text-muted);
}