/* Simple, clean, functional styling. No gradients, no glassmorphism. */

:root {
    --border: #d7dbe0;
    --bg: #f5f6f8;
    --card: #ffffff;
    --text: #1f2430;
    --muted: #6b7280;
    --primary: #2456c9;
    --primary-dark: #1c449e;
    --danger: #c0392b;
    --danger-bg: #fdecea;
    --success: #1e8449;
    --success-bg: #eafaf1;
    --radius: 6px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 15px;
    line-height: 1.5;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.topbar {
    background: var(--card);
    border-bottom: 1px solid var(--border);
}
.topbar-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 12px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
}
.brand { font-weight: 700; font-size: 18px; color: var(--text); }
.brand:hover { text-decoration: none; }
.nav a {
    margin-left: 16px;
    color: var(--muted);
    font-size: 14px;
}
.nav a:hover { color: var(--primary); text-decoration: none; }
.nav a.active { color: var(--primary); font-weight: 600; }

.container {
    max-width: 1100px;
    margin: 24px auto;
    padding: 0 20px;
}

.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 20px;
}

.card h2, .card h3 { margin-top: 0; }

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
}

/* Auth pages */
.auth-wrap {
    min-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
}
.auth-card {
    width: 100%;
    max-width: 380px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
}
.auth-card h1 {
    font-size: 20px;
    margin: 0 0 20px 0;
    text-align: center;
}

label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 4px; margin-top: 12px; }
input[type=text], input[type=email], input[type=password], input[type=search], select, textarea {
    width: 100%;
    padding: 9px 10px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 14px;
    font-family: inherit;
    background: #fff;
    color: var(--text);
}
textarea { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 13px; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--primary); outline-offset: 1px; }

.btn {
    display: inline-block;
    padding: 9px 16px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: #fff;
    color: var(--text);
    font-size: 14px;
    cursor: pointer;
}
.btn:hover { background: #f0f1f3; text-decoration: none; }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-danger { background: var(--danger-bg); border-color: #f2c9c4; color: var(--danger); }
.btn-danger:hover { background: #fbdbd7; }
.btn-block { width: 100%; text-align: center; margin-top: 16px; }
.btn-sm { padding: 5px 10px; font-size: 13px; }

.alert { padding: 10px 14px; border-radius: var(--radius); font-size: 14px; margin-bottom: 14px; }
.alert-error { background: var(--danger-bg); color: var(--danger); border: 1px solid #f2c9c4; }
.alert-success { background: var(--success-bg); color: var(--success); border: 1px solid #bdeacb; }

.muted { color: var(--muted); font-size: 13px; }
.text-center { text-align: center; }

table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 9px 8px; border-bottom: 1px solid var(--border); vertical-align: middle; }
th { color: var(--muted); font-weight: 600; font-size: 13px; }
tr:hover td { background: #fafbfc; }

.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 12px; }
.badge-active { background: var(--success-bg); color: var(--success); }
.badge-disabled { background: var(--danger-bg); color: var(--danger); }
.badge-admin { background: #eef1fb; color: var(--primary); }

/* File manager */
.fm-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    margin-bottom: 14px;
}
.fm-path {
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 13px;
    color: var(--muted);
    background: #f0f1f3;
    padding: 6px 10px;
    border-radius: var(--radius);
    flex: 1 1 auto;
    overflow-x: auto;
    white-space: nowrap;
}
.fm-table td.name { display: flex; align-items: center; gap: 8px; }
.fm-table .icon { font-size: 16px; }
.fm-table .item-link { color: var(--text); }
.fm-table .item-link:hover { color: var(--primary); }
.fm-actions { white-space: nowrap; }
.fm-actions button, .fm-actions a { margin-right: 4px; }
.fm-select { margin-right: 6px; }

.modal-overlay {
    display: none;
    position: fixed; inset: 0;
    background: rgba(0,0,0,0.35);
    align-items: center; justify-content: center;
    z-index: 100;
}
.modal-overlay.open { display: flex; }
.modal {
    background: #fff;
    border-radius: var(--radius);
    padding: 20px;
    width: 100%;
    max-width: 480px;
    max-height: 85vh;
    overflow-y: auto;
}
.modal h3 { margin-top: 0; }
.modal-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 16px; }

.progress-bar {
    background: #eef0f2;
    border-radius: 999px;
    height: 8px;
    overflow: hidden;
}
.progress-bar-fill { background: var(--primary); height: 100%; }

.stat-value { font-size: 24px; font-weight: 700; }
.stat-label { color: var(--muted); font-size: 13px; }

pre.file-preview {
    background: #f7f8fa;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 14px;
    overflow-x: auto;
    font-size: 13px;
    white-space: pre-wrap;
    word-break: break-word;
}

footer.app-footer {
    text-align: center;
    color: var(--muted);
    font-size: 12px;
    padding: 20px;
}

@media (max-width: 640px) {
    .topbar-inner { flex-direction: column; align-items: flex-start; }
    .nav a { margin-left: 0; margin-right: 14px; }
}