/* ── Reset & base ──────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 17px; }

:root {
    --bg:           #0f1117;
    --bg-card:      #1a1d27;
    --bg-input:     #252832;
    --bg-hover:     #2a2d3a;
    --border:       #2e3140;
    --text:         #e4e6ed;
    --text-muted:   #8b8fa3;
    --accent:       #4f8cff;
    --accent-hover: #3a7aff;
    --success:      #34d399;
    --warning:      #fbbf24;
    --danger:       #f87171;
    --radius:       8px;
    --sidebar-w:    240px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
    min-height: 100vh;
}

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

h1 { font-size: 1.5rem; font-weight: 600; }
h2 { font-size: 1.3rem; font-weight: 600; margin-bottom: 0.75rem; }
h3 { font-size: 1.05rem; font-weight: 600; }

/* ── Buttons ──────────────────────────────────────────────────────────────── */
.btn {
    display: inline-flex; align-items: center; gap: 0.4rem;
    padding: 0.5rem 1rem; border: none; border-radius: var(--radius);
    font-size: 0.9rem; font-weight: 500; cursor: pointer;
    transition: background 0.15s, opacity 0.15s;
}
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-primary   { background: var(--accent); color: #fff; }
.btn-primary:hover:not(:disabled) { background: var(--accent-hover); }

.btn-secondary { background: var(--bg-input); color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover:not(:disabled) { background: var(--bg-hover); }

.btn-danger    { background: var(--danger); color: #fff; }
.btn-text      { background: none; color: var(--text-muted); padding: 0.4rem 0.6rem; }
.btn-text:hover { color: var(--text); }

.btn-block { width: 100%; justify-content: center; }

.btn-icon {
    display: inline-flex; align-items: center; justify-content: center;
    width: 1.6rem; height: 1.6rem; padding: 0; border: none; border-radius: var(--radius);
    background: none; color: var(--text-muted); font-size: 1rem; cursor: pointer;
    transition: background 0.15s, color 0.15s;
}
.btn-icon:hover { background: var(--danger); color: #fff; }

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

/* ── Inputs ───────────────────────────────────────────────────────────────── */
input[type="text"], input[type="password"], input[type="email"],
input[type="number"], input[type="search"], select, textarea {
    width: 100%; padding: 0.5rem 0.75rem;
    background: var(--bg-input); color: var(--text);
    border: 1px solid var(--border); border-radius: var(--radius);
    font-size: 0.9rem;
}
input:focus, select:focus, textarea:focus {
    outline: none; border-color: var(--accent);
}

.input-search { max-width: 260px; }

.form-group { margin-bottom: 1rem; }
.form-group label { display: block; margin-bottom: 0.3rem; font-size: 0.85rem; color: var(--text-muted); }

.error-text { color: var(--danger); font-size: 0.85rem; margin-top: 0.5rem; }

/* ── Cards ────────────────────────────────────────────────────────────────── */
.card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 1.25rem;
}
.card-stat { font-size: 2rem; font-weight: 700; margin: 0.5rem 0 0.2rem; }
.card-label { font-size: 0.875rem; color: var(--text-muted); }
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 1rem; margin-top: 1rem; }

/* ── Upload zone ──────────────────────────────────────────────────────────── */
.upload-zone {
    border: 2px dashed var(--border); border-radius: var(--radius);
    padding: 3rem 2rem; text-align: center; cursor: pointer;
    transition: border-color 0.2s, background 0.2s;
    margin-bottom: 1.5rem;
}
.upload-zone:hover, .upload-zone.drag-over {
    border-color: var(--accent); background: rgba(79, 140, 255, 0.05);
}
.upload-hint { font-size: 0.85rem; color: var(--text-muted); margin-top: 0.5rem; }

/* ── Action bar ───────────────────────────────────────────────────────────── */
.action-bar {
    display: flex; align-items: center; justify-content: space-between;
    gap: 1rem; flex-wrap: wrap;
    padding: 1rem 0; margin-top: 1rem;
    border-top: 1px solid var(--border);
}

/* Left group: option flags (checkboxes) + mode select */
.action-bar-flags {
    display: flex; align-items: center; gap: 1.25rem; flex-wrap: wrap;
}
.action-bar-flags label {
    font-size: 0.9rem; display: flex; align-items: center; gap: 0.4rem; cursor: pointer;
}
.action-bar-flags label input[type="checkbox"] { cursor: pointer; }

/* Right group: action buttons, separated by a thin rule */
.action-bar-buttons {
    display: flex; align-items: center; gap: 0.5rem;
}
.action-bar-buttons::before {
    content: ""; display: block;
    width: 1px; height: 1.5rem;
    background: var(--border);
    margin-right: 0.25rem;
}

/* ── Inline select (width-constrained, used inside flex rows) ─────────────── */
.select-inline { width: auto; min-width: 140px; }

/* ── Placeholder ──────────────────────────────────────────────────────────── */
.placeholder-text { color: var(--text-muted); font-style: italic; padding: 2rem 0; }

/* ── Page header ──────────────────────────────────────────────────────────── */
.page-header {
    display: flex; justify-content: space-between; align-items: center;
    flex-wrap: wrap; gap: 1rem; margin-bottom: 1.25rem;
}
.page-actions { display: flex; gap: 0.5rem; align-items: center; }