/* ============================================================
   StockPit - Motorsport-Inspired Dark Theme
   ============================================================ */

:root {
    /* Pit Lane Colors */
    --m-blue: #0066B1;
    --m-red: #E4002B;
    --m-purple: #6C2D82;
    --m-light-blue: #009DDC;

    /* Dark theme palette */
    --bg-primary: #0D0D0F;
    --bg-secondary: #161619;
    --bg-card: #1C1C21;
    --bg-card-hover: #22222A;
    --bg-input: #25252D;
    --bg-tertiary: #2A2A32;
    --bg-modal: #1A1A20;

    --border-color: #2A2A35;
    --border-light: #35354A;

    --text-primary: #F0F0F5;
    --text-secondary: #9999AA;
    --text-muted: #666678;

    --primary: #0066B1;
    --accent: #0066B1;
    --accent-hover: #0077CC;
    --success: #00C853;
    --warning: #FFB300;
    --danger: #E4002B;
    --info: #009DDC;

    --radius: 8px;
    --radius-lg: 12px;
    --shadow: 0 2px 12px rgba(0,0,0,0.4);
    --transition: all 0.2s ease;
}

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

body {
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* ---- Scrollbar ---- */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--border-light); border-radius: 4px; }

/* ---- Header / Nav ---- */
.top-nav {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 0 24px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 100;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 20px;
    font-weight: 700;
    letter-spacing: 1px;
}

.brand-accent {
    background: linear-gradient(135deg, var(--m-blue), var(--m-red));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.m-stripe {
    display: flex;
    gap: 2px;
    height: 24px;
}

.m-stripe span {
    width: 4px;
    border-radius: 2px;
}

.m-stripe .s1 { background: var(--m-light-blue); }
.m-stripe .s2 { background: var(--m-blue); }
.m-stripe .s3 { background: var(--m-red); }

.nav-tabs {
    display: flex;
    gap: 4px;
    height: 100%;
    align-items: stretch;
}

.nav-tab {
    background: none;
    border: none;
    color: var(--text-secondary);
    padding: 0 16px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 6px;
}

.nav-tab:hover { color: var(--text-primary); }
.nav-tab.active {
    color: var(--text-primary);
    border-bottom-color: var(--accent);
}

/* ---- Layout ---- */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 24px;
}

/* ---- Stats Cards ---- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 20px;
    transition: var(--transition);
}

.stat-card:hover {
    border-color: var(--border-light);
    transform: translateY(-1px);
    box-shadow: var(--shadow);
}

.stat-label {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.stat-value {
    font-size: 28px;
    font-weight: 700;
}

.stat-value.blue { color: var(--m-blue); }
.stat-value.green { color: var(--success); }
.stat-value.red { color: var(--m-red); }
.stat-value.purple { color: var(--m-purple); }

/* ---- Cards / Panels ---- */
.panel {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    margin-bottom: 24px;
    overflow: hidden;
}

.panel-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.panel-title {
    font-size: 16px;
    font-weight: 600;
}

.panel-body { padding: 20px; }

/* ---- Buttons ---- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: var(--radius);
    border: 1px solid transparent;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

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

.btn-danger { background: var(--danger); color: white; }
.btn-danger:hover { opacity: 0.9; }

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border-color: var(--border-color);
}
.btn-ghost:hover {
    color: var(--text-primary);
    border-color: var(--border-light);
    background: var(--bg-card-hover);
}

.btn-sm { padding: 5px 10px; font-size: 12px; }

/* ---- Table ---- */
.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th {
    text-align: left;
    padding: 10px 16px;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border-color);
    font-weight: 600;
}

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

.data-table tbody tr {
    transition: var(--transition);
    cursor: pointer;
}

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

/* ---- Status Badges ---- */
.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-acquired { background: rgba(0,102,177,0.15); color: var(--m-blue); }
.badge-in_stock { background: rgba(0,200,83,0.15); color: var(--success); }
.badge-on_deal { background: rgba(255,179,0,0.15); color: var(--warning); }
.badge-sold { background: rgba(108,45,130,0.15); color: var(--m-purple); }
.badge-technical_hold { background: rgba(229,57,53,0.15); color: var(--danger); }
.badge-archived { background: rgba(102,102,120,0.15); color: var(--text-muted); }

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

.form-group label {
    display: block;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-control {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-size: 14px;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(0,102,177,0.2);
}

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

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%239999AA' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

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

.form-row-3 {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 16px;
}

/* ---- Modal ---- */
.modal-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.7);
    z-index: 200;
    align-items: center;
    justify-content: center;
}

.modal-backdrop.active { display: flex; }

.modal {
    background: var(--bg-modal);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 700px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0,0,0,0.6);
}

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h2 { font-size: 18px; font-weight: 600; }

.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 20px;
    cursor: pointer;
    padding: 4px 8px;
}
.modal-close:hover { color: var(--text-primary); }

.modal-body { padding: 24px; }

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

/* ---- Search ---- */
.search-bar {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
}

.search-bar input {
    flex: 1;
}

/* ---- Filters ---- */
.filter-row {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.filter-chip {
    padding: 6px 14px;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    background: transparent;
    color: var(--text-secondary);
    font-size: 12px;
    cursor: pointer;
    transition: var(--transition);
}

.filter-chip:hover, .filter-chip.active {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
}

/* ---- Detail Panel ---- */
.detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.detail-item label {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
}

.detail-item .value {
    font-size: 15px;
    color: var(--text-primary);
    margin-top: 2px;
}

/* ---- Tab content sections ---- */
.tab-content { display: none; }
.tab-content.active { display: block; }

/* ---- Settings Layout ---- */
.settings-layout {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 24px;
    min-height: 600px;
}
.settings-nav {
    position: sticky;
    top: 16px;
    align-self: start;
}
.settings-nav-header {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    padding: 0 12px 10px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 6px;
}
.settings-nav-item {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    padding: 9px 12px;
    border: none;
    background: none;
    color: var(--text-secondary);
    font-size: 13px;
    font-family: inherit;
    cursor: pointer;
    border-radius: var(--radius);
    transition: background 0.15s, color 0.15s;
    text-align: left;
}
.settings-nav-item:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}
.settings-nav-item.active {
    background: var(--primary);
    color: #fff;
}
.settings-nav-icon {
    font-size: 14px;
    width: 18px;
    text-align: center;
    flex-shrink: 0;
}
.settings-content {
    min-width: 0;
}
.settings-section {
    display: none;
}
.settings-section.active {
    display: block;
}
.settings-section-header {
    margin-bottom: 20px;
}
.settings-section-header h2 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 4px;
}
.settings-section-header p {
    font-size: 13px;
    color: var(--text-muted);
    margin: 0;
}

/* Feature cards */
.feature-card {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    margin-bottom: 8px;
    transition: background 0.15s;
}
.feature-card:hover {
    background: var(--bg-tertiary);
}
.feature-card .feature-status {
    flex-shrink: 0;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-top: 5px;
}
.feature-card .feature-status.live { background: var(--success); }
.feature-card .feature-status.planned { background: var(--text-muted); }
.feature-card .feature-info { flex: 1; min-width: 0; }
.feature-card .feature-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}
.feature-card .feature-desc {
    font-size: 12px;
    color: var(--text-muted);
}
.feature-card .feature-phase {
    flex-shrink: 0;
    font-size: 11px;
    padding: 2px 8px;
    border-radius: 10px;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    font-weight: 600;
}

@media (max-width: 768px) {
    .settings-layout {
        grid-template-columns: 1fr;
    }
    .settings-nav {
        position: static;
        display: flex;
        gap: 4px;
        overflow-x: auto;
        padding-bottom: 8px;
        border-bottom: 1px solid var(--border-color);
        margin-bottom: 16px;
    }
    .settings-nav-header { display: none; }
    .settings-nav-item { white-space: nowrap; padding: 6px 12px; }
}

/* ---- Collapsible Sections ---- */
.collapsible-section .collapsible-body { display: none; }
.collapsible-section.expanded .collapsible-body { display: block; }
.collapsible-section .collapse-arrow { transition: transform 0.2s; }
.collapsible-section.expanded .collapse-arrow { transform: rotate(90deg); }

/* ---- Audit Log ---- */
.audit-entry {
    display: flex;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
    align-items: flex-start;
}

.audit-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
    margin-top: 6px;
    flex-shrink: 0;
}

.audit-time {
    font-size: 12px;
    color: var(--text-muted);
}

/* ---- Toast notifications ---- */
.toast-container {
    position: fixed;
    top: 72px;
    right: 24px;
    z-index: 300;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.toast {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-left: 3px solid var(--success);
    border-radius: var(--radius);
    padding: 12px 16px;
    font-size: 13px;
    box-shadow: var(--shadow);
    animation: slideIn 0.3s ease;
    min-width: 280px;
}

.toast.error { border-left-color: var(--danger); }

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* ---- Notification Items ---- */
.notification-item {
    display: flex;
    gap: 10px;
    padding: 10px 12px;
    border-radius: var(--radius);
    margin-bottom: 4px;
    transition: background 0.15s;
    cursor: pointer;
    align-items: flex-start;
}
.notification-item:hover { background: var(--bg-card-hover); }
.notification-dot {
    flex-shrink: 0;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-top: 5px;
}
.notification-dot.critical { background: var(--danger); }
.notification-dot.warning { background: var(--warning); }
.notification-dot.info { background: var(--m-light-blue); }
.notification-dot.read { opacity: 0.3; }
.notification-item.read { opacity: 0.6; }
.notification-msg { font-size: 13px; color: var(--text-primary); line-height: 1.4; }
.notification-stock { font-size: 11px; color: var(--text-muted); margin-top: 2px; }
.notification-type-badge {
    font-size: 10px;
    padding: 1px 6px;
    border-radius: 8px;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.3px;
    flex-shrink: 0;
    margin-top: 2px;
}

/* ---- Mobile Nav Toggle ---- */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 24px;
    cursor: pointer;
    padding: 4px 8px;
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
    .form-row, .form-row-3 { grid-template-columns: 1fr; }
    .detail-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .container { padding: 12px; }

    /* Mobile nav: hamburger toggle */
    .mobile-menu-btn { display: block; }
    .top-nav { padding: 0 12px; height: 52px; flex-wrap: wrap; }
    .brand { font-size: 16px; gap: 8px; }
    .nav-tabs {
        display: none;
        width: 100%;
        flex-direction: column;
        gap: 0;
        height: auto;
        border-top: 1px solid var(--border-color);
        padding: 8px 0;
        order: 10;
    }
    .nav-tabs.mobile-open { display: flex; }
    .nav-tab {
        padding: 10px 16px;
        border-bottom: none;
        border-left: 2px solid transparent;
        font-size: 13px;
    }
    .nav-tab.active { border-left-color: var(--accent); border-bottom-color: transparent; }
    #user-display { font-size: 12px; }

    /* Stat cards */
    .stat-card { padding: 12px; }
    .stat-value { font-size: 20px; }
    .stat-label { font-size: 11px; }

    /* Panels */
    .panel-header { padding: 12px 16px; flex-wrap: wrap; gap: 8px; }
    .panel-body { padding: 12px 16px; }

    /* Table horizontal scroll */
    .data-table { font-size: 13px; }
    .data-table th, .data-table td { padding: 8px 10px; }

    /* Modals */
    .modal { width: 96%; max-height: 95vh; }
    .modal-header { padding: 16px; }
    .modal-body { padding: 16px; }
    .modal-footer { padding: 12px 16px; }

    /* Filter chips */
    .filter-row { gap: 6px; }
    .filter-chip { padding: 5px 10px; font-size: 11px; }

    /* Search bar */
    .search-bar { flex-direction: column; gap: 8px; }

    /* Toast at bottom on mobile */
    .toast-container { top: auto; bottom: 12px; right: 12px; left: 12px; }
    .toast { min-width: auto; }

    /* Feature cards */
    .feature-card { padding: 10px 12px; }

    /* Vehicle detail collapsible */
    .collapsible-section h3 { font-size: 13px !important; }

    /* Charts side-by-side → stacked */
    [style*="grid-template-columns: 1fr 1fr"] {
        grid-template-columns: 1fr !important;
    }
}

@media (max-width: 768px) {
    #notification-panel { width: calc(100vw - 24px) !important; right: 12px !important; left: 12px !important; }
}

@media (max-width: 480px) {
    .stats-grid { grid-template-columns: 1fr; }
    .brand { font-size: 14px; }
    .brand .m-stripe { height: 18px; }
    #user-display span { max-width: 80px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
}

/* ---- Loading spinner ---- */
.spinner {
    width: 24px;
    height: 24px;
    border: 3px solid var(--border-color);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 40px auto;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ---- Empty state ---- */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}

.empty-state h3 { font-size: 16px; margin-bottom: 8px; color: var(--text-secondary); }