/* ============================================================
   Base / Reset
   ============================================================ */
:root {
    --bg-dark:      #1e1e1e;
    --bg-mid:       #2b2b2b;
    --bg-light:     #333333;
    --border:       #444444;
    --text:         #eeeeee;
    --text-muted:   #999999;
    --accent:       #0066cc;
    --accent-hover: #0052a3;
    --accent-light: #0099ff;
    --success:      #1e5e1e;
    --success-text: #92d050;
    --sidebar-w:    240px;
    --console-text: #cccccc;
    --shadow-card:  rgba(0, 102, 204, 0.25);
    color-scheme: dark;
}

[data-theme="light"] {
    --bg-dark:      #f0f2f5;
    --bg-mid:       #ffffff;
    --bg-light:     #e4e6ea;
    --border:       #d0d3d8;
    --text:         #1a1a1a;
    --text-muted:   #5f6368;
    --accent:       #0066cc;
    --accent-hover: #0052a3;
    --accent-light: #0055aa;
    --success:      #d4edda;
    --success-text: #155724;
    --console-text: #333333;
    --shadow-card:  rgba(0, 0, 0, 0.1);
    color-scheme: light;
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-size: 14px;
    min-height: 100vh;
}

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

/* ============================================================
   Layout
   ============================================================ */
#wrapper { min-height: 100vh; }

#sidebar {
    width: var(--sidebar-w);
    min-height: 100vh;
    background-color: var(--bg-mid);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; left: 0;
    z-index: 100;
}

#main-content {
    margin-left: var(--sidebar-w);
    flex: 1;
    min-height: 100vh;
}

.content-inner {
    padding: 32px;
    max-width: 1200px;
}

/* ============================================================
   Sidebar
   ============================================================ */
.sidebar-header {
    padding: 20px 16px 16px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 10px;
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-hover) 100%);
}

.sidebar-icon { font-size: 22px; }
.sidebar-title { font-size: 15px; font-weight: 700; color: #fff; }

.sidebar-nav {
    list-style: none;
    padding: 12px 0;
    flex: 1;
    overflow-y: auto;
}

.nav-section-label {
    padding: 12px 16px 4px;
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    font-weight: 600;
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 16px;
    color: var(--text);
    transition: all 0.2s;
    font-size: 13px;
}

.sidebar-link:hover {
    background-color: var(--bg-light);
    color: var(--accent-light);
}

.sidebar-link.active {
    background-color: var(--accent);
    color: #fff;
    font-weight: 600;
}

.sidebar-link i { font-size: 15px; width: 18px; text-align: center; }

.sidebar-footer {
    padding: 12px 16px;
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 12px;
    color: var(--text-muted);
}

.sidebar-user { display: flex; align-items: center; gap: 6px; }

.sidebar-logout {
    color: var(--text-muted);
    font-size: 16px;
    transition: color 0.2s;
}
.sidebar-logout:hover { color: #ff6b6b; }

.theme-toggle {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 16px;
    cursor: pointer;
    padding: 0;
    transition: color 0.2s;
}
.theme-toggle:hover { color: var(--accent-light); }

/* ============================================================
   Page header
   ============================================================ */
.page-header {
    margin-bottom: 28px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
}

.page-header h1 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text);
}

.page-header p { color: var(--text-muted); margin-top: 4px; }

/* ============================================================
   Home tool cards
   ============================================================ */
.tool-card {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 20px;
    background-color: var(--bg-mid);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text);
    transition: all 0.25s;
    height: 100%;
}

.tool-card:hover {
    border-color: var(--accent);
    box-shadow: 0 4px 16px var(--shadow-card);
    transform: translateY(-2px);
    color: var(--text);
}

.tool-card-icon { font-size: 28px; flex-shrink: 0; margin-top: 2px; }
.tool-card-body h5 { font-size: 15px; font-weight: 700; margin-bottom: 6px; }
.tool-card-body p { font-size: 12px; color: var(--text-muted); margin: 0; }

/* ============================================================
   Forms
   ============================================================ */
.form-label { color: var(--text); font-weight: 500; margin-bottom: 4px; }

.form-control, .form-select {
    background-color: var(--bg-dark);
    border: 1px solid var(--border);
    color: var(--text);
    border-radius: 6px;
}

.form-control:focus, .form-select:focus {
    background-color: var(--bg-dark);
    border-color: var(--accent);
    color: var(--text);
    box-shadow: 0 0 0 2px rgba(0, 102, 204, 0.25);
}

.form-control::placeholder { color: var(--text-muted); }

.form-select option { background-color: var(--bg-mid); color: var(--text); }

.form-hint { font-size: 11px; color: var(--text-muted); margin-top: 4px; }

/* ============================================================
   Buttons
   ============================================================ */
.btn-primary {
    background-color: var(--accent);
    border-color: var(--accent);
}
.btn-primary:hover {
    background-color: var(--accent-hover);
    border-color: var(--accent-hover);
}

.btn-success {
    background-color: var(--success);
    border-color: var(--success);
}

/* ============================================================
   Tool panels
   ============================================================ */
.tool-panel {
    background-color: var(--bg-mid);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 24px;
    margin-bottom: 24px;
}

.tool-panel-title {
    font-size: 14px;
    font-weight: 700;
    color: var(--accent-light);
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ============================================================
   Progress / Console
   ============================================================ */
.progress {
    background-color: var(--bg-dark);
    border-radius: 4px;
    height: 10px;
}

.progress-bar { background-color: var(--accent); transition: width 0.3s; }

.console-box {
    background-color: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 12px;
    height: 200px;
    overflow-y: auto;
    font-family: 'Consolas', 'Courier New', monospace;
    font-size: 12px;
    color: var(--console-text);
    white-space: pre-wrap;
    word-break: break-all;
}

/* ============================================================
   Alerts
   ============================================================ */
.alert-danger {
    background-color: rgba(220, 53, 69, 0.15);
    border-color: rgba(220, 53, 69, 0.4);
    color: #f5a0a8;
}

.alert-warning {
    background-color: rgba(255, 193, 7, 0.1);
    border-color: rgba(255, 193, 7, 0.3);
    color: #ffc107;
}

.alert-success {
    background-color: rgba(25, 135, 84, 0.15);
    border-color: rgba(25, 135, 84, 0.4);
    color: #75c98a;
}

[data-theme="light"] .alert-danger  { color: #842029; }
[data-theme="light"] .alert-warning { color: #664d03; }
[data-theme="light"] .alert-success { color: #0f5132; }

/* ============================================================
   Login page
   ============================================================ */
.login-body {
    background-color: var(--bg-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

.login-wrapper {
    width: 100%;
    max-width: 400px;
    padding: 24px;
}

.login-card {
    background-color: var(--bg-mid);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 36px 32px;
}

.login-header { text-align: center; margin-bottom: 28px; }
.login-icon { font-size: 48px; margin-bottom: 12px; }
.login-title { font-size: 22px; font-weight: 700; color: var(--text); }
.login-subtitle { color: var(--text-muted); font-size: 13px; margin-top: 4px; }
.btn-login { padding: 10px; font-size: 15px; font-weight: 600; }

/* ============================================================
   File upload boxes (matching tool)
   ============================================================ */
.file-upload-box {
    padding: 20px;
    background-color: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 8px;
}

.file-upload-box.uploaded {
    border-color: var(--accent);
    background-color: rgba(0, 102, 204, 0.06);
}

[data-theme="light"] .file-upload-box.uploaded {
    background-color: rgba(0, 102, 204, 0.08);
}

.file-upload-label {
    font-size: 13px;
    font-weight: 700;
    color: var(--accent-light);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.4px;
}

/* Config panels (source/target/side-A/side-B) */
.config-panel {
    padding: 16px;
    background-color: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 8px;
}

.config-panel-title {
    font-size: 13px;
    font-weight: 700;
    color: var(--accent-light);
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    gap: 6px;
}

/* ============================================================
   Checkbox grid (sum column selector in graphs tool)
   ============================================================ */
.checkbox-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 6px 16px;
    padding: 12px;
    background-color: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 6px;
    max-height: 200px;
    overflow-y: auto;
}

.checkbox-grid .form-check-input {
    background-color: var(--bg-dark);
    border-color: var(--border);
}
.checkbox-grid .form-check-input:checked {
    background-color: var(--accent);
    border-color: var(--accent);
}
.checkbox-grid .form-check-label { color: var(--text); font-size: 13px; }

/* ============================================================
   Bootstrap component overrides (dark mode)
   ============================================================ */
.card {
    background-color: var(--bg-dark);
    border-color: var(--border);
    color: var(--text);
}

.card-header {
    background-color: var(--bg-light);
    border-color: var(--border);
    color: var(--text);
}

.card-body {
    background-color: var(--bg-dark);
    color: var(--text);
}

.form-check-input {
    background-color: var(--bg-light);
    border-color: var(--border);
}

.form-check-input:checked {
    background-color: var(--accent);
    border-color: var(--accent);
}

.form-check-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(0, 102, 204, 0.25);
}

.form-check-label { color: var(--text); }

.alert-info {
    background-color: rgba(13, 110, 253, 0.1);
    border-color: rgba(13, 110, 253, 0.3);
    color: #79b8f3;
}

[data-theme="light"] .alert-info {
    background-color: #cfe2ff;
    border-color: #9ec5fe;
    color: #084298;
}

/* Scrollable checkbox lists used in bin routing label selector */
.cb-scroll-list {
    max-height: 140px;
    overflow-y: auto;
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 6px 10px;
    background-color: var(--bg-dark);
}

/* ============================================================
   Collapsible section groups (m.section_group macro)
   ============================================================ */
.section-group {
    background-color: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 8px;
    margin-bottom: 16px;
    overflow: hidden;
}

.section-group[open] { background-color: var(--bg-dark); }

.section-group-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    cursor: pointer;
    list-style: none;
    user-select: none;
    font-weight: 600;
    color: var(--text);
    background-color: transparent;
    border-bottom: 1px solid transparent;
    transition: background-color 0.15s, border-color 0.15s;
}

.section-group-header::-webkit-details-marker { display: none; }
.section-group-header:hover { background-color: var(--bg-light); }

.section-group[open] > .section-group-header {
    border-bottom-color: var(--border);
}

.section-group-arrow {
    color: var(--text-muted);
    font-size: 12px;
    transition: transform 0.2s;
}

.section-group[open] > .section-group-header .section-group-arrow {
    transform: rotate(90deg);
}

.section-group-body {
    padding: 16px 20px 4px;
}

.section-group .section-group-body > .mb-3:last-child,
.section-group .section-group-body > .mb-4:last-child {
    margin-bottom: 4px !important;
}

/* Help drawer trigger button (.help-btn) and inline help link (.help-link)
   are defined in base.html alongside the offcanvas drawer they trigger. */

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 768px) {
    #sidebar { width: 100%; min-height: auto; position: relative; }
    #main-content { margin-left: 0; }
    #wrapper { flex-direction: column; }
    .content-inner { padding: 16px; }
}