/* ============================================================
   Mqora — Stylesheet
   Light theme, clean, modern dashboard look
   ============================================================ */

:root {
    --bg:        #f0f2f5;
    --surface:   #ffffff;
    --primary:   #2563eb;
    --primary-d: #1d4ed8;
    --text:      #1e293b;
    --text-mut:  #64748b;
    --border:    #e2e8f0;
    --green:     #16a34a;
    --amber:     #d97706;
    --red:       #dc2626;
    --purple:    #7c3aed;
    --teal:      #0d9488;
    --radius:    12px;
    --shadow:    0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 30px rgba(0,0,0,0.10);
}

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

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

/* ---- Navigation ---- */
.topnav {
    background: var(--surface);
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    height: 64px;
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary);
}

.logo-icon { font-size: 1.5rem; }

.nav-links {
    display: flex;
    gap: 4px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-mut);
    padding: 8px 16px;
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.15s;
}

.nav-links a:hover {
    background: var(--bg);
    color: var(--text);
}

.nav-links a.active {
    background: var(--primary);
    color: #fff;
}

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

.page-header {
    margin-bottom: 24px;
}

.page-header h1 {
    font-size: 1.6rem;
    font-weight: 700;
}

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

/* ---- Cards ---- */
.card {
    background: var(--surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 20px;
    margin-bottom: 20px;
}

.card-title {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-mut);
    margin-bottom: 12px;
}

/* ---- Stat cards ---- */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 20px;
    text-align: center;
    transition: transform 0.15s;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.stat-card .stat-value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary);
}

.stat-card .stat-label {
    font-size: 0.85rem;
    color: var(--text-mut);
    margin-top: 4px;
}

.stat-card.green .stat-value  { color: var(--green); }
.stat-card.amber .stat-value  { color: var(--amber); }
.stat-card.purple .stat-value { color: var(--purple); }
.stat-card.teal .stat-value   { color: var(--teal); }

/* ---- Grid layout ---- */
.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.grid-3 {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 20px;
}

@media (max-width: 900px) {
    .grid-2, .grid-3 { grid-template-columns: 1fr; }
    .nav-links { flex-wrap: wrap; }
}

/* ---- Tables ---- */
table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    text-align: left;
    padding: 10px 12px;
    border-bottom: 1px solid var(--border);
}

th {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-mut);
    font-weight: 600;
}

tbody tr:hover { background: var(--bg); }

/* ---- Badges ---- */
.badge {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-blue   { background: #dbeafe; color: #1d4ed8; }
.badge-green  { background: #dcfce7; color: #15803d; }
.badge-amber { background: #fef3c7; color: #b45309; }
.badge-purple{ background: #ede9fe; color: #6d28d9; }
.badge-teal  { background: #ccfbf1; color: #0f766e; }
.badge-red   { background: #fee2e2; color: #b91c1c; }
.badge-gray  { background: #f1f5f9; color: #475569; }

/* ---- Category colors ---- */
.cat-Bakery         { color: #b45309; }
.cat-Dairy          { color: #1d4ed8; }
.cat-Produce        { color: #15803d; }
.cat-Snacks         { color: #c026d3; }
.cat-Beverages      { color: #0d9488; }
.cat-Household      { color: #475569; }
.cat-Personal\ Care { color: #7c3aed; }
.cat-Frozen         { color: #0284c7; }
.cat-Meat           { color: #dc2626; }
.cat-Pantry         { color: #d97706; }

/* ---- Buttons ---- */
.btn {
    display: inline-block;
    padding: 10px 20px;
    border-radius: 8px;
    border: none;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s;
    text-decoration: none;
    font-size: 0.9rem;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
}

.btn-primary:hover { background: var(--primary-d); }

.btn-outline {
    background: transparent;
    border: 2px solid var(--border);
    color: var(--text);
}

.btn-outline:hover { border-color: var(--primary); color: var(--primary); }

/* ---- Search ---- */
.search-box {
    width: 100%;
    padding: 10px 16px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 0.95rem;
    margin-bottom: 16px;
}

.search-box:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

/* ---- Network graph ---- */
#network-container {
    height: 600px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    overflow: hidden;
}

/* ---- Chart containers ---- */
.chart-container {
    position: relative;
    height: 320px;
}

.chart-container-sm {
    position: relative;
    height: 240px;
}

/* ---- Arrangement groups ---- */
.zone-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
}

.zone-card {
    background: var(--surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 16px;
    border-left: 4px solid var(--primary);
}

.zone-card .zone-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.zone-card .zone-title {
    font-weight: 700;
    font-size: 1rem;
}

.zone-card .zone-score {
    font-size: 0.8rem;
    color: var(--text-mut);
}

.zone-products {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.zone-product {
    background: var(--bg);
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 0.82rem;
}

/* ---- Upload area ---- */
.upload-area {
    border: 2px dashed var(--border);
    border-radius: var(--radius);
    padding: 40px;
    text-align: center;
    transition: all 0.2s;
}

.upload-area:hover, .upload-area.dragover {
    border-color: var(--primary);
    background: rgba(37, 99, 235, 0.04);
}

.upload-area input[type="file"] {
    display: none;
}

/* ---- Code blocks ---- */
pre, code {
    font-family: 'Cascadia Code', 'Fira Code', 'Consolas', monospace;
    font-size: 0.85rem;
}

pre {
    background: #1e293b;
    color: #e2e8f0;
    padding: 16px;
    border-radius: 8px;
    overflow-x: auto;
    line-height: 1.5;
}

code.inline {
    background: var(--bg);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.85em;
    color: var(--primary);
}

/* ---- API docs ---- */
.endpoint {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
}

.method-badge {
    padding: 4px 10px;
    border-radius: 6px;
    font-weight: 700;
    font-size: 0.75rem;
    min-width: 50px;
    text-align: center;
}

.method-GET  { background: #dcfce7; color: #15803d; }
.method-POST { background: #dbeafe; color: #1d4ed8; }

.endpoint-path {
    font-family: monospace;
    font-weight: 600;
    color: var(--text);
}

.endpoint-desc {
    color: var(--text-mut);
    font-size: 0.9rem;
    margin-top: 2px;
}

/* ---- Misc ---- */
.text-mut { color: var(--text-mut); }
.text-sm  { font-size: 0.85rem; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }
.full-w { width: 100%; }

.flash {
    background: #dcfce7;
    color: #15803d;
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 16px;
}

#toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: #1e293b;
    color: #fff;
    padding: 12px 20px;
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    z-index: 9999;
    display: none;
    font-size: 0.9rem;
}

/* ---- Loading spinner ---- */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* ---- Footer ---- */
.footer {
    text-align: center;
    padding: 24px;
    color: var(--text-mut);
    font-size: 0.85rem;
}

/* ---- Nav auth area ---- */
.nav-auth {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-left: auto;
    font-size: 0.85rem;
}
.nav-auth a { color: var(--text-mut); text-decoration: none; }
.nav-auth a:hover { color: var(--primary); }
.nav-tenant {
    font-weight: 600;
    color: var(--text);
    max-width: 140px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.nav-auth .nav-login { font-weight: 600; color: var(--text); }
.nav-auth .nav-cta {
    background: var(--primary);
    color: #fff !important;
    padding: 6px 14px;
    border-radius: 6px;
    font-weight: 600;
}
.nav-auth .nav-cta:hover { background: var(--primary-d); }

/* ---- Auth pages (login) ---- */
.auth-container {
    max-width: 420px;
    margin: 40px auto;
    background: var(--surface);
    border-radius: var(--radius);
    padding: 32px;
    box-shadow: var(--shadow);
}
.auth-container h1 { font-size: 1.5rem; margin-bottom: 6px; }
.auth-sub { color: var(--text-mut); font-size: 0.9rem; margin-bottom: 24px; }
.auth-error {
    background: #fef2f2;
    border-left: 4px solid var(--red);
    color: #991b1b;
    padding: 10px 14px;
    border-radius: 6px;
    font-size: 0.88rem;
    margin-bottom: 16px;
}
.auth-container form label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-mut);
    margin-bottom: 6px;
}
.auth-input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 0.9rem;
    font-family: monospace;
    margin-bottom: 16px;
}
.auth-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
}
.btn-block { width: 100%; }
.auth-help {
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
    font-size: 0.85rem;
    color: var(--text-mut);
}
.auth-help a { color: var(--primary); }

/* ---- Revenue impact tracker ---- */
.impact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
}
.impact-metric {
    background: #f8fafc;
    border-radius: 8px;
    padding: 14px 16px;
    border-left: 3px solid var(--primary);
}
.impact-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--text-mut);
    letter-spacing: 0.5px;
    margin-bottom: 6px;
}
.impact-values {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.95rem;
    margin-bottom: 4px;
}
.impact-before { color: var(--text-mut); }
.impact-arrow { color: #94a3b8; }
.impact-after { font-weight: 700; color: var(--text); }
.impact-delta { font-size: 0.85rem; font-weight: 700; }
.impact-delta.up { color: var(--green); }
.impact-delta.down { color: var(--red); }
.impact-delta.neutral { color: var(--text-mut); }
.attribution-note {
    margin-top: 16px;
    font-size: 0.78rem;
    color: #94a3b8;
    font-style: italic;
    line-height: 1.5;
}

/* ---- Demo data banner (shown to logged-out visitors) ---- */
.demo-banner {
    display: flex;
    align-items: center;
    gap: 12px;
    background: linear-gradient(135deg, #eff6ff, #dbeafe);
    border: 1px solid #93c5fd;
    border-radius: var(--radius);
    padding: 12px 18px;
    margin-bottom: 20px;
    font-size: 0.88rem;
}
.demo-icon { font-size: 1.3rem; flex-shrink: 0; }
.demo-text { color: #1e40af; }
.demo-text strong { color: var(--text); }
.demo-text a { color: var(--primary); font-weight: 600; }

/* ---- Upgrade banner (plan usage) ---- */
.upgrade-banner {
    background: linear-gradient(135deg, #fffbeb, #fef3c7);
    border: 1px solid #fcd34d;
    border-radius: var(--radius);
    padding: 16px 20px;
    margin-bottom: 24px;
}
.upgrade-banner.danger {
    background: linear-gradient(135deg, #fef2f2, #fee2e2);
    border-color: #fca5a5;
}
.upgrade-content {
    display: flex;
    align-items: center;
    gap: 24px;
    flex-wrap: wrap;
}
.upgrade-text { flex: 1 1 260px; }
.upgrade-text strong { display: block; font-size: 1rem; margin-bottom: 2px; }
.upgrade-text p { font-size: 0.88rem; color: #78350f; margin: 0; }
.upgrade-banner.danger .upgrade-text p { color: #991b1b; }
.upgrade-meter { flex: 1 1 220px; min-width: 180px; }
.meter-bar {
    height: 8px;
    background: #fbbf24;
    border-radius: 4px;
    overflow: hidden;
    background: #e5e7eb;
}
.meter-fill {
    height: 100%;
    background: var(--amber);
    border-radius: 4px;
    transition: width 0.4s ease;
}
.meter-fill.danger { background: var(--red); }
.usage-label {
    display: block;
    font-size: 0.78rem;
    color: var(--text-mut);
    margin-top: 4px;
}

/* ---- Analytics page ---- */
.subtitle { color: var(--text-mut); margin-bottom: 20px; }

.stats-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}
.stat-card {
    background: var(--surface);
    border-radius: var(--radius);
    padding: 20px;
    text-align: center;
    box-shadow: var(--shadow);
}
.stat-value {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--primary);
}
.stat-label {
    font-size: 0.8rem;
    color: var(--text-mut);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 4px;
}

.insights-banner {
    background: linear-gradient(135deg, #eff6ff, #dbeafe);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 24px;
}
.insights-banner h2 {
    font-size: 1.1rem;
    margin-bottom: 12px;
}
#insightsContainer {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 12px;
}
.insight-card {
    background: var(--surface);
    border-radius: 8px;
    padding: 14px 16px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--primary);
}
.insight-card.insight-high { border-left-color: var(--red); }
.insight-card.insight-medium { border-left-color: var(--amber); }
.insight-icon { font-size: 1.4rem; line-height: 1; }

.chart-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 24px;
}
.chart-card {
    background: var(--surface);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
}
.chart-card h3 {
    font-size: 0.85rem;
    text-transform: uppercase;
    color: var(--text-mut);
    margin-bottom: 12px;
}
.chart-wrap {
    height: 300px;
    position: relative;
}

.section-card {
    background: var(--surface);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 24px;
    box-shadow: var(--shadow);
}
.section-card h3 {
    font-size: 0.85rem;
    text-transform: uppercase;
    color: var(--text-mut);
    margin-bottom: 12px;
}

.table-wrap { overflow-x: auto; }
.data-table {
    width: 100%;
    border-collapse: collapse;
}
.data-table th, .data-table td {
    text-align: left;
    padding: 8px 10px;
    border-bottom: 1px solid var(--border);
    font-size: 0.85rem;
}
.data-table th {
    color: var(--text-mut);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.data-table tbody tr:hover { background: #f8fafc; }

.share-bar {
    height: 8px;
    background: var(--primary);
    border-radius: 4px;
    min-width: 4px;
    display: inline-block;
}

.premium-cta {
    text-align: center;
    background: linear-gradient(135deg, #faf5ff, #ede9fe);
    border: 2px dashed var(--purple);
}
.premium-cta h3 { color: var(--purple); }
.premium-cta p { color: var(--text-mut); margin-bottom: 16px; font-size: 0.9rem; }

/* ---- Logo ---- */
.nav-brand .logo-img {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    margin-right: 6px;
    vertical-align: middle;
}
.nav-brand .logo-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: var(--primary);
    color: #fff;
    border-radius: 8px;
    font-weight: 800;
    font-size: 1.1rem;
    margin-right: 6px;
}

/* ---- Terms page ---- */
.terms-container {
    max-width: 800px;
    margin: 0 auto;
    background: var(--surface);
    border-radius: var(--radius);
    padding: 40px;
    box-shadow: var(--shadow);
}
.terms-container h1 {
    font-size: 1.8rem;
    margin-bottom: 8px;
}
.terms-container .last-updated {
    color: var(--text-mut);
    font-size: 0.85rem;
    margin-bottom: 32px;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--border);
}
.terms-container h2 {
    font-size: 1.15rem;
    margin: 28px 0 12px;
    color: var(--text);
}
.terms-container h2::before {
    content: '';
    display: inline-block;
    width: 4px;
    height: 20px;
    background: var(--primary);
    border-radius: 2px;
    margin-right: 10px;
    vertical-align: middle;
}
.terms-container p {
    margin-bottom: 14px;
    color: #475569;
    font-size: 0.92rem;
    line-height: 1.7;
}
.terms-container ul {
    margin: 8px 0 16px 20px;
    color: #475569;
    font-size: 0.92rem;
    line-height: 1.7;
}
.terms-container ul li { margin-bottom: 6px; }
.terms-container .callout {
    background: #fef3c7;
    border-left: 4px solid var(--amber);
    padding: 12px 16px;
    border-radius: 8px;
    margin: 16px 0;
    font-size: 0.88rem;
}
.terms-container .callout strong { color: var(--text); }
.terms-toc {
    background: #f8fafc;
    border-radius: 8px;
    padding: 16px 20px;
    margin-bottom: 24px;
}
.terms-toc h3 { font-size: 0.85rem; text-transform: uppercase; color: var(--text-mut); margin-bottom: 8px; }
.terms-toc ol { margin-left: 20px; color: var(--primary); }
.terms-toc ol li { margin-bottom: 4px; }
.terms-toc ol li a { color: var(--primary); text-decoration: none; font-size: 0.9rem; }
.terms-toc ol li a:hover { text-decoration: underline; }

@media (max-width: 768px) {
    .chart-grid { grid-template-columns: 1fr; }
}