/* ================================================================
   Paint Correction AI — ERP-matched Stylesheet
   Palette / layout mirrors the Workshop ERP system (co.whedinburgh.ltd)
   ================================================================ */

:root {
    --primary:        #1e3a5f;
    --primary-dark:   #152b47;
    --primary-light:  #2e5086;
    --sidebar-width:  260px;
    --topbar-height:  60px;
    --font:           'Cairo', system-ui, sans-serif;
    --shadow:         0 2px 12px rgba(0,0,0,.10);
    --shadow-lg:      0 8px 24px rgba(0,0,0,.14);
    --transition:     0.22s ease;

    /* Kept variable names so existing inline JS styles reskin automatically */
    --bg:       #dde3ea;
    --surface:  #f2f5f9;
    --surface2: #e7ecf2;
    --border:   #dee2e6;
    --text:     #1a2332;
    --text2:    #6b7a8d;
    --accent:   #1e3a5f;
    --accent2:  #f97316;
    --danger:   #dc2626;
    --green:    #16a34a;
    --yellow:   #d97706;
    --blue:     #2563eb;
    --purple:   #7c3aed;
    --radius:   10px;
}

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

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    font-size: 0.95rem;
}

/* ── Layout: Sidebar + Main ─────────────────────────────────── */
.sidebar {
    position: fixed;
    top: 0; bottom: 0; left: 0;
    width: var(--sidebar-width);
    background: var(--primary);
    color: #fff;
    display: flex;
    flex-direction: column;
    z-index: 1040;
    overflow-y: auto;
    transition: transform var(--transition);
}

.sidebar-brand {
    display: flex; align-items: center; gap: 10px;
    padding: 20px 18px 16px;
    font-size: 1.1rem; font-weight: 800;
    border-bottom: 1px solid rgba(255,255,255,.12);
    color: #fff; white-space: nowrap;
}
.sidebar-brand-icon {
    width: 36px; height: 36px; border-radius: 9px;
    background: linear-gradient(135deg, var(--accent2), #ea6a0a);
    display: flex; align-items: center; justify-content: center;
    font-size: 16px; font-weight: 800; flex-shrink: 0;
}

.sidebar-nav { list-style: none; padding: 10px 0; margin: 0; flex: 1; }
.sidebar-nav li a, .sidebar-nav li button {
    display: flex; align-items: center; gap: 10px;
    width: 100%; padding: 11px 18px;
    color: rgba(255,255,255,.78);
    text-decoration: none; background: none; border: none;
    font-size: 0.9rem; font-weight: 500; text-align: left;
    border-left: 3px solid transparent;
    transition: all var(--transition);
    cursor: pointer;
}
.sidebar-nav li a:hover, .sidebar-nav li button:hover,
.sidebar-nav li.active a, .sidebar-nav li.active button {
    background: rgba(255,255,255,.12);
    color: #fff;
    border-left-color: var(--accent2);
}
.sidebar-nav li a i, .sidebar-nav li button i { font-size: 1.05rem; min-width: 18px; }
.nav-label {
    font-size: 0.65rem; text-transform: uppercase; letter-spacing: 1px;
    color: rgba(255,255,255,.4); padding: 12px 18px 4px;
}

.sidebar-footer { padding: 14px 16px; border-top: 1px solid rgba(255,255,255,.12); font-size: 0.75rem; color: rgba(255,255,255,.5); }

.sidebar-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,.5); z-index: 1039; }
.sidebar-overlay.active { display: block; }

.main-content {
    min-height: 100vh;
    margin-left: var(--sidebar-width);
    padding-top: calc(var(--topbar-height) + 20px);
    padding-bottom: 40px;
    transition: margin var(--transition);
}
.main-inner { max-width: 1400px; margin: 0 auto; padding: 0 24px; }

/* ── Topbar ─────────────────────────────────────────────────── */
.topbar {
    position: fixed; top: 0; left: var(--sidebar-width); right: 0;
    height: var(--topbar-height);
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    display: flex; align-items: center; gap: 12px;
    padding: 0 20px; z-index: 1030;
    box-shadow: var(--shadow);
    transition: left var(--transition);
}
.topbar-toggler {
    display: none;
    background: none; border: none; color: var(--text);
    font-size: 1.4rem; cursor: pointer; padding: 4px 8px; border-radius: 6px;
}
.topbar-title { font-weight: 700; font-size: 1.05rem; color: var(--primary); flex: 1; }

/* ── Page Header ─────────────────────────────────────────────── */
.page-header { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; margin-bottom: 20px; }
.page-header h1 { font-size: 1.3rem; margin: 0; color: var(--primary); font-weight: 800; }
.page-header .subtitle { font-size: 0.85rem; color: var(--text2); margin-top: 2px; }

h2 { font-size: 17px; margin-bottom: 16px; color: var(--primary); font-weight: 700; }

/* ── Steps ──────────────────────────────────────────────────── */
.steps { display: flex; gap: 8px; margin-bottom: 24px; flex-wrap: wrap; }
.step-ind {
    display: flex; align-items: center; gap: 8px; padding: 10px 20px;
    background: var(--surface); border: 1px solid var(--border);
    border-radius: 24px; font-size: 14px; color: var(--text2);
    cursor: pointer; transition: all 0.2s; box-shadow: var(--shadow);
}
.step-ind.active { background: var(--accent); border-color: var(--accent); color: white; }
.step-ind.done { border-color: var(--green); color: var(--green); }
.step-num {
    width: 24px; height: 24px; border-radius: 50%; background: var(--surface2);
    display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 700;
}
.step-ind.active .step-num { background: rgba(255,255,255,0.25); color: white; }
.step-ind.done .step-num { background: var(--green); color: white; }

/* ── Panels (card style) ────────────────────────────────────── */
.panel {
    display: none; background: var(--surface); border: none;
    border-radius: var(--radius); box-shadow: var(--shadow);
    padding: 24px;
}
.panel.active { display: block; }

/* ── Upload Zones ───────────────────────────────────────────── */
.upload-zone {
    border: 2px dashed #a8b4c0; border-radius: var(--radius); padding: 40px 20px;
    text-align: center; cursor: pointer; transition: all 0.2s; position: relative;
    background: #f8fafc;
}
.upload-zone:hover { border-color: var(--accent); background: rgba(30,58,95,0.04); }
.upload-zone.has-files { border-color: var(--green); border-style: solid; padding: 16px; background: rgba(22,163,74,0.04); }
.upload-zone input[type="file"] { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.upload-icon { font-size: 44px; margin-bottom: 12px; opacity: 0.55; }
.upload-label { font-size: 16px; margin-bottom: 4px; font-weight: 600; color: var(--text); }
.upload-hint { font-size: 13px; color: var(--text2); }
.preview-grid { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; justify-content: center; }
.preview-grid img { width: 80px; height: 80px; object-fit: cover; border-radius: 8px; border: 2px solid var(--border); }

/* ── Forms ──────────────────────────────────────────────────── */
.car-info { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px; margin-bottom: 20px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
label { display: block; font-size: 13px; color: var(--text2); font-weight: 600; margin-bottom: 4px; }
input[type="text"], input[type="number"], textarea {
    width: 100%; background: #f8fafc; border: 2px solid #a8b4c0;
    color: var(--text); padding: 9px 12px; border-radius: 8px; font-size: 14px; font-family: inherit;
    transition: border-color var(--transition), box-shadow var(--transition);
}
input:focus, textarea:focus {
    outline: none; border-color: var(--accent); background: #fff;
    box-shadow: 0 0 0 0.2rem rgba(30,58,95,.15);
}
textarea { min-height: 80px; resize: vertical; }

/* ── Buttons ────────────────────────────────────────────────── */
.btn {
    padding: 11px 22px; border: none; border-radius: 8px; font-size: 14px; font-weight: 700;
    cursor: pointer; transition: all 0.2s; display: inline-flex; align-items: center; gap: 8px;
}
.btn-primary { background: var(--accent); color: white; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-primary:disabled { background: #c3cbd4; color: #fff; cursor: not-allowed; }
.btn-secondary { background: #fff; color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); }
.btn-success { background: var(--green); color: white; }
.btn-success:hover { background: #15803d; }
.btn-danger { background: var(--danger); color: white; font-size: 13px; padding: 8px 14px; }
.btn-danger:hover { background: #b91c1c; }
.actions { display: flex; justify-content: space-between; margin-top: 20px; }

/* ── Tables ─────────────────────────────────────────────────── */
.formula-table { width: 100%; border-collapse: collapse; margin-top: 12px; }
.formula-table th {
    background: var(--primary); color: #fff; padding: 10px 12px;
    text-align: left; font-size: 13px; font-weight: 600;
}
.formula-table td { padding: 10px 12px; border-bottom: 1px solid var(--border); font-size: 14px; }
.formula-table tbody tr:hover { background: rgba(30,58,95,.04); }
.formula-table td[contenteditable]:focus { background: rgba(30,58,95,0.08); outline: 1px solid var(--accent); border-radius: 4px; }

/* ── Result Cards / Badges ─────────────────────────────────── */
.result-card { background: var(--surface2); border-radius: var(--radius); padding: 20px; margin-bottom: 16px; }
.severity-badge { display: inline-block; padding: 4px 12px; border-radius: 20px; font-size: 12px; font-weight: 700; text-transform: uppercase; }
.severity-slight { background: rgba(22,163,74,0.15); color: var(--green); }
.severity-moderate { background: rgba(217,119,6,0.15); color: var(--yellow); }
.severity-significant { background: rgba(220,38,38,0.15); color: var(--danger); }
.severity-unknown { background: rgba(107,122,141,0.15); color: var(--text2); }

.adjustment-row {
    display: grid; grid-template-columns: 2fr 1fr 1fr 1fr 1fr 2fr;
    gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--border); align-items: center;
}
.adjustment-row:last-child { border-bottom: none; }
.adj-header { font-size: 12px; color: var(--text2); font-weight: 700; text-transform: uppercase; }
.adj-action { padding: 4px 10px; border-radius: 6px; font-size: 13px; font-weight: 700; }
.adj-increase { background: rgba(22,163,74,0.15); color: var(--green); }
.adj-decrease { background: rgba(220,38,38,0.15); color: var(--danger); }

.comparison-images { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 20px; }
.comparison-images img { width: 100%; height: 200px; object-fit: cover; border-radius: 8px; border: 2px solid var(--border); }
.img-label { font-size: 12px; color: var(--text2); text-align: center; margin-top: 6px; font-weight: 600; }

.confidence-bar { height: 8px; background: var(--border); border-radius: 4px; overflow: hidden; margin-top: 8px; }
.confidence-fill { height: 100%; border-radius: 4px; transition: width 0.5s; }

/* ── Mode Tabs ──────────────────────────────────────────────── */
.mode-tabs { display: flex; gap: 4px; margin-bottom: 16px; background: var(--surface2); border-radius: 8px; padding: 4px; width: fit-content; }
.mode-tab { padding: 8px 20px; border-radius: 6px; font-size: 14px; font-weight: 600; cursor: pointer; color: var(--text2); border: none; background: none; }
.mode-tab.active { background: var(--accent); color: white; }

.manual-row { display: grid; grid-template-columns: 3fr 1fr 1fr auto; gap: 8px; margin-bottom: 8px; align-items: center; }
.manual-row input { padding: 8px 10px; }
.remove-btn { background: var(--danger); color: white; border: none; width: 32px; height: 32px; border-radius: 6px; cursor: pointer; font-size: 16px; }

/* ── Loading ────────────────────────────────────────────────── */
.loading { display: none; text-align: center; padding: 40px; }
.loading.active { display: block; }
.spinner { width: 48px; height: 48px; border: 4px solid var(--border); border-top-color: var(--accent); border-radius: 50%; animation: spin 0.8s linear infinite; margin: 0 auto 16px; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ── History ────────────────────────────────────────────────── */
.history-item {
    background: var(--surface); border-radius: var(--radius); padding: 16px; margin-bottom: 10px;
    display: flex; justify-content: space-between; align-items: center;
    border: 1px solid var(--border); box-shadow: var(--shadow); transition: all 0.2s;
}
.history-item:hover { border-color: var(--accent); transform: translateY(-1px); box-shadow: var(--shadow-lg); }

/* ── Mode Selection Cards ───────────────────────────────────── */
.mode-cards { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 20px; margin-top: 16px; }
.mode-card {
    background: var(--surface); border: 2px solid var(--border); border-radius: var(--radius);
    padding: 30px 24px; cursor: pointer; transition: all 0.3s; text-align: center;
    box-shadow: var(--shadow);
}
.mode-card:hover { border-color: var(--accent); transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.mode-card.spectral { border-color: rgba(124,58,237,0.35); }
.mode-card.spectral:hover { border-color: var(--purple); }
.mode-card-icon { font-size: 48px; margin-bottom: 16px; }
.mode-card-title { font-size: 20px; font-weight: 800; margin-bottom: 8px; color: var(--primary); }
.mode-card-desc { font-size: 14px; color: var(--text2); margin-bottom: 16px; line-height: 1.5; }
.mode-card-detail { font-size: 13px; color: var(--text2); line-height: 1.6; padding: 12px; background: var(--surface2); border-radius: 8px; margin-bottom: 12px; }
.mode-card-steps { font-size: 12px; color: var(--accent2); font-weight: 700; }

.mode-badge {
    display: inline-block; padding: 4px 14px; border-radius: 20px;
    font-size: 12px; font-weight: 700; text-transform: uppercase;
    margin-bottom: 16px;
}
.mode-badge.advisor { background: rgba(37,99,235,0.15); color: var(--blue); }
.mode-badge.compare { background: rgba(22,163,74,0.15); color: var(--green); }
.mode-badge.spectral { background: rgba(124,58,237,0.15); color: var(--purple); }

.spectral-ranges { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.spectral-range-item { background: var(--surface2); border-radius: 8px; padding: 12px; border: 1px solid var(--border); }

/* ── Job Modal ──────────────────────────────────────────────── */
#jobModal { background: rgba(15,23,42,0.6); }
#jobModal > div { box-shadow: var(--shadow-lg); }

/* ── Scrollbar ──────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #b8c2cc; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #98a4b0; }

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 991.98px) {
    .sidebar { transform: translateX(-100%); box-shadow: var(--shadow-lg); }
    .sidebar.open { transform: translateX(0); }
    .main-content { margin-left: 0; }
    .topbar { left: 0; }
    .topbar-toggler { display: inline-flex; }
}

@media (max-width: 768px) {
    .spectral-ranges { grid-template-columns: 1fr; }
    .mode-cards { grid-template-columns: 1fr; }
    .grid-2, .car-info { grid-template-columns: 1fr; }
    .adjustment-row { grid-template-columns: 1fr 1fr; gap: 6px; font-size: 13px; }
    .comparison-images { grid-template-columns: 1fr; }
    .steps { gap: 4px; }
    .step-ind { padding: 8px 12px; font-size: 12px; }
    .main-inner { padding: 0 14px; }
    .page-header h1 { font-size: 1.1rem; }
}