/* ========================================
   BBL Plan-Check — Area Management Platform
   Component Styles
   ======================================== */

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

/* Global Focus Indicators — keyboard accessibility baseline */
*:focus-visible {
    outline: 3px solid var(--color-focus);
    outline-offset: 2px;
}
:focus:not(:focus-visible) {
    outline: none;
}

body {
    font-family: var(--font-family-primary);
    background: var(--color-bg-page);
    color: var(--color-text-primary);
    min-height: 100vh;
    display: flex; flex-direction: column;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ========================================
   Shared Patterns — merged by visual role
   ======================================== */

/* -- Code badge: monospace identifier text --
   Used for rule IDs, entity types, code refs.
   Merge of: .rules-row__code,
   .vside-item__rule-id, .api-docs__type, .api-docs__status,
   .api-docs__method, .api-docs__version, .feature-popup__badge */
.rules-row__code,
.vside-item__rule-id,
.api-docs__type,
.api-docs__status,
.api-docs__method,
.api-docs__version,
.feature-popup__badge,
.api-docs__required {
    font-family: var(--font-family-mono);
    font-weight: var(--font-weight-semibold);
    white-space: nowrap;
    line-height: var(--line-height-tight);
}

/* -- Filled badge: code badge with background pill --
   Merge of: .feature-popup__badge,
   .api-docs__method, .api-docs__version, .api-docs__status */
.rules-row__code,
.vside-item__rule-id,
.feature-popup__badge,
.api-docs__method,
.api-docs__version,
.api-docs__status {
    display: inline-block;
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    background: var(--color-primary-light);
    color: var(--color-primary);
}

/* -- Uppercase label: section/column headers --
   Merge of: .panel__header, .info-grid__label,
   .info-grid__download-label, .val-kpi-title,
   .api-docs__section-label,
   .api-docs__schema th, .rules-cat-sep */
.panel__header,
.info-grid__label,
.info-grid__download-label,
.val-kpi-title,
.api-docs__section-label,
.api-docs__schema th,
.rules-cat-sep {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-caps);
    color: var(--color-text-secondary);
}

/* -- Color indicator dot --
   Merge of: .feature-popup__color-swatch,
   .vside-item__icon, .val-donut-legend__color */
.feature-popup__color-swatch,
.vside-item__icon,
.val-donut-legend__color {
    display: inline-block;
    flex-shrink: 0;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-swatch-border);
}

/* -- Muted description text --
   Merge of: .vside-item__elem-ref, .vside-item__desc,
   .vside-item__name, .rules-row__desc, .feature-popup__label */
.vside-item__elem-ref,
.vside-item__desc,
.vside-item__name,
.rules-row__desc,
.feature-popup__label {
    color: var(--color-text-secondary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* -- Mono numeric value --
   Merge of: .vside-item__value, .rules-row__count,
   .val-donut-legend__pct, .rules-cat-sep__stats,
   .val-kpi-table .kpi-value, .val-kpi-table .kpi-pct */
.vside-item__value,
.rules-row__count,
.val-donut-legend__pct,
.rules-cat-sep__stats {
    font-family: var(--font-family-mono);
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
}

/* -- Section bar: background + border separator --
   Merge of: .panel__header, .validation-side__toolbar,
   .validation-side__summary, .validation-tabs, .rules-cat-sep */
.panel__header,
.validation-side__toolbar,
.validation-side__summary,
.validation-tabs,
.rules-cat-sep {
    background: var(--color-bg-secondary);
    border-bottom: 1px solid var(--color-border);
}

/* -- Table cell: uniform padding across all tables --
   Merge of: .val-kpi-table td, .api-docs__schema th/td */
.val-kpi-table td,
.api-docs__schema th,
.api-docs__schema td {
    padding: var(--space-2) var(--space-3);
}

/* -- Chevron indicator: expand/collapse toggle --
   Merge of: .panel__chevron, .rules-cat-sep__chevron */
.panel__chevron,
.rules-cat-sep__chevron {
    width: 18px; height: 18px; flex-shrink: 0;
    display: inline-flex; align-items: center; justify-content: center;
    transition: transform var(--duration-normal);
}
.panel__chevron::after,
.rules-cat-sep__chevron::after {
    content: ''; display: block;
    width: 5px; height: 5px;
    border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor;
    transform: rotate(45deg); margin-top: -2px;
}

/* -- Viewer overlay: glass HUD elements --
   Merge of: .viewer__coords, .viewer__scale-bar */
.viewer__coords,
.viewer__scale-bar {
    background: var(--overlay-glass);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-sm);
    pointer-events: none;
}

/* -- Nav link: interactive text links with hover --
   Merge of: .header__nav-link, .footer__link,
   .validation-tabs__tab */
.header__nav-link,
.footer__link,
.validation-tabs__tab {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color var(--duration-normal);
    min-height: var(--min-target-size);
    display: inline-flex;
    align-items: center;
    white-space: nowrap;
}
.header__nav-link:hover,
.footer__link:hover,
.validation-tabs__tab:hover {
    color: var(--color-primary);
}

/* ----------------------------------------
   Header
   ---------------------------------------- */
.header {
    flex-shrink: 0;
    background: var(--color-bg-primary);
    border-bottom: 1px solid var(--color-border);
}
.header__content {
    display: flex; align-items: center;
    max-width: var(--container-max-width); margin: 0 auto;
    padding: var(--space-4) var(--space-5); gap: var(--space-4);
}
.header__brand {
    display: flex; align-items: flex-start; gap: 0;
    text-decoration: none; min-width: 0; flex-shrink: 1;
}
.header__flag { flex-shrink: 0; height: 33px; width: 30px; display: block; margin-right: var(--space-3); }
.header__name { height: 50px; width: auto; display: block; }
.header__sep {
    width: 1px; height: 50px; background: var(--color-border); margin: 0 var(--space-4); flex-shrink: 0;
}
.header__titles { display: flex; flex-direction: column; gap: var(--space-1); }
.header__org { font-size: var(--font-size-sm); font-weight: var(--font-weight-bold); color: var(--color-text-primary); line-height: var(--line-height-tight); }
.header__app { font-size: var(--font-size-sm); font-weight: var(--font-weight-regular); color: var(--color-text-secondary); line-height: var(--line-height-tight); }
.header__nav { display: flex; align-items: center; gap: var(--space-4); margin-left: auto; order: 9; }
.header__nav-link {
    /* shared via nav-link group above */
    font-size: var(--font-size-sm);
}

/* Language Selector */
.lang-selector { display: flex; align-items: center; gap: 0; border-left: 1px solid var(--color-border); padding-left: var(--space-4); order: 10; }
.lang-selector__item {
    font-size: var(--font-size-sm); font-weight: var(--font-weight-semibold); color: var(--color-text-secondary); text-decoration: none;
    padding: var(--space-1) var(--space-2); border-radius: var(--radius-sm); transition: all var(--duration-normal); cursor: pointer;
    border: none; background: none; font-family: inherit;
    min-height: var(--min-target-size); min-width: var(--min-target-size);
    display: inline-flex; align-items: center; justify-content: center;
}
.lang-selector__item:hover { color: var(--color-primary); background: var(--color-primary-light); }
.lang-selector__item--active { color: var(--color-primary); background: var(--color-primary-light); }

/* ----------------------------------------
   Footer
   ---------------------------------------- */
.footer {
    flex-shrink: 0;
    background: var(--color-bg-secondary); margin-top: auto;
    border-top: 1px solid var(--color-border);
}
.footer__content {
    max-width: var(--container-max-width); margin: 0 auto;
    padding: var(--space-1) var(--space-5);
    display: flex; justify-content: space-between; align-items: center;
    color: var(--color-text-secondary); font-size: var(--font-size-xs);
}
.footer__links { display: flex; align-items: center; gap: var(--space-3); flex-wrap: wrap; }
.footer__link {
    /* shared via nav-link group above */
}
.footer__sep { color: var(--color-border); }
.footer__version { color: var(--color-text-secondary); }

/* ----------------------------------------
   Container
   ---------------------------------------- */
.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: var(--space-4) auto;
    padding: 0 var(--space-5);
    display: flex; flex-direction: column; gap: var(--space-5);
}

/* ----------------------------------------
   Upload Zone
   ---------------------------------------- */
.upload-zone {
    display: flex; flex-direction: column; align-items: center; gap: var(--space-3);
    background: var(--color-bg-primary);
    border: 2px dashed var(--color-border); border-radius: var(--radius-md);
    padding: var(--space-6) var(--space-5);
    text-align: center;
    cursor: pointer;
    transition: border-color var(--duration-slow), background var(--duration-slow);
}
.upload-zone:hover, .upload-zone.dragover {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
}
.upload-zone svg { width: 40px; height: 40px; color: var(--color-text-secondary); opacity: 0.6; }
.upload-zone:hover svg { color: var(--color-primary); opacity: 1; }
.upload-zone p,
.upload-zone .hint,
.upload-zone__demo-hint { color: var(--color-text-secondary); font-size: var(--font-size-sm); margin: 0; }
.upload-zone__demo-link { color: var(--color-primary); font-weight: var(--font-weight-semibold); }


/* ----------------------------------------
   Button
   ---------------------------------------- */
.btn {
    display: inline-flex; align-items: center; gap: var(--space-2);
    padding: var(--button-padding-y) var(--button-padding-x); border: none;
    font-size: var(--font-size-sm); font-weight: var(--font-weight-semibold); cursor: pointer;
    transition: all var(--duration-normal);
    min-height: var(--min-target-size);
    border-radius: var(--radius-sm);
}
.btn--primary { background: var(--color-primary); color: var(--color-text-inverse); }
.btn--primary:hover { background: var(--color-primary-hover); }

/* ----------------------------------------
   Status
   ---------------------------------------- */
.status {
    padding: var(--space-3) var(--space-4); border-radius: var(--radius-md);
    font-size: var(--font-size-sm); display: none; font-weight: var(--font-weight-medium);
}
.status--loading { background: var(--color-primary-light); color: var(--color-primary); display: flex; align-items: center; gap: var(--space-3); }
.status--success { background: var(--color-success-light); color: var(--color-success); display: flex; align-items: center; }
.status--error { background: var(--color-error-light); color: var(--color-error); }

/* Spinner */
.spinner {
    width: var(--icon-size-md); height: var(--icon-size-md);
    border: 2px solid var(--color-border); border-top-color: var(--color-primary);
    border-radius: var(--radius-full); animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ----------------------------------------
   Panel
   ---------------------------------------- */
.panel { display: none; background: var(--color-bg-primary); overflow: hidden; border: 1px solid var(--color-border); border-radius: var(--radius-md); }
.panel.visible { display: block; box-shadow: var(--shadow-sm); }
.panel__header {
    /* bg + border shared via section-bar group above */
    padding: var(--space-3) var(--space-4);
    display: flex; justify-content: space-between; align-items: center;
    /* font shared via .panel__header in uppercase-label group above */
    color: var(--color-text-primary);
}

/* ----------------------------------------
   Info Grid
   ---------------------------------------- */
.info-grid {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1px; background: var(--color-border);
}
.info-grid__item { background: var(--color-bg-primary); padding: var(--space-3) var(--space-4); }
.info-grid__label {
    /* font shared via uppercase-label group above */
    margin-bottom: var(--space-1); font-weight: var(--font-weight-medium);
}
.info-grid__value { font-size: var(--font-size-lg); font-weight: var(--font-weight-bold); color: var(--color-text-primary); font-variant-numeric: tabular-nums; }
.info-grid__download { background: var(--color-bg-primary); padding: var(--space-3) var(--space-4); display: flex; flex-direction: column; justify-content: center; gap: var(--space-1); }
.info-grid__download-label {
    /* font shared via uppercase-label group above */
    font-weight: var(--font-weight-medium);
}
.info-grid__download-links { display: flex; gap: var(--space-2); flex-wrap: wrap; }
.info-grid__dl-btn {
    display: inline-flex; align-items: center; gap: var(--space-1);
    padding: var(--space-1) var(--space-3); font-size: var(--font-size-sm); font-weight: var(--font-weight-semibold);
    border: 1px solid var(--color-primary); background: var(--color-primary-light);
    color: var(--color-primary); cursor: pointer; transition: all var(--duration-normal);
    font-family: inherit; text-decoration: none;
    min-height: var(--min-target-size);
}
.info-grid__dl-btn:hover { background: var(--color-primary); color: var(--color-text-inverse); }
.info-grid__dl-btn svg { width: var(--icon-size-sm); height: var(--icon-size-sm); flex-shrink: 0; }

/* ----------------------------------------
   Viewer Controls
   ---------------------------------------- */
.viewer__controls {
    position: absolute; top: 50%; right: var(--space-3); transform: translateY(-50%);
    z-index: var(--z-index-controls);
    display: flex; flex-direction: column; gap: var(--space-1); align-items: center;
    background: var(--color-label-bg); backdrop-filter: blur(4px);
    padding: var(--space-1); border-radius: var(--radius-sm);
}
.viewer__controls > button {
    width: var(--min-target-size); height: var(--min-target-size); border: 1px solid var(--color-border);
    background: var(--color-bg-primary); cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    color: var(--color-text-secondary); transition: all var(--duration-normal);
}
.viewer__controls > button:hover { background: var(--color-primary-light); color: var(--color-primary); border-color: var(--color-primary); }
.viewer__controls > button > svg { width: var(--icon-size-md); height: var(--icon-size-md); }
.viewer__controls .viewer__sep { width: 100%; height: 1px; background: var(--color-border); margin: var(--space-1) 0; }

/* ----------------------------------------
   Status Filter (Segmented Button Group)
   ---------------------------------------- */
.status-filter {
    display: flex;
    margin-left: auto;
    padding-left: var(--space-4);
    margin-top: var(--space-2);
    margin-bottom: var(--space-2);
}
.status-filter__btn {
    display: inline-flex; align-items: center; gap: var(--space-1);
    padding: var(--space-1) var(--space-3);
    font-family: inherit; font-size: var(--font-size-sm); font-weight: var(--font-weight-semibold);
    color: var(--color-text-secondary); background: var(--color-bg-primary);
    border: 1px solid var(--color-border); cursor: pointer;
    transition: all var(--duration-normal); white-space: nowrap;
    min-height: var(--min-target-size);
}
.status-filter__btn + .status-filter__btn { margin-left: -1px; }
.status-filter__btn:first-child { border-radius: var(--radius-sm) 0 0 var(--radius-sm); }
.status-filter__btn:last-child { border-radius: 0 var(--radius-sm) var(--radius-sm) 0; }
.status-filter__btn:hover { color: var(--color-text-primary); z-index: 1; }
.status-filter__btn:focus-visible { outline: none; box-shadow: var(--shadow-focus); z-index: 2; }
.status-filter__btn--active {
    background: var(--color-bg-inverse); color: var(--color-text-inverse);
    border-color: var(--color-bg-inverse); z-index: 1;
}
.status-filter__btn--active:hover { color: var(--color-text-inverse); }
.status-filter__btn svg { width: var(--icon-size-sm); height: var(--icon-size-sm); }

/* ----------------------------------------
   Canvas Viewer
   ---------------------------------------- */
.viewer__canvas-wrap {
    position: relative; width: 100%; height: 100%;
    overflow: hidden; background: var(--color-white); cursor: grab;
    touch-action: none;
}
.viewer__canvas-wrap:active { cursor: grabbing; }
.viewer__canvas-wrap canvas { position: absolute; left: 0; top: 0; }
.viewer__coords {
    /* bg, padding, radius, pointer-events shared via viewer-overlay group above */
    position: absolute; bottom: var(--space-2); right: var(--space-3);
    color: var(--color-text-secondary); font-size: var(--font-size-xs); font-family: var(--font-family-mono);
}
.viewer__scale-bar {
    /* bg, padding, radius, pointer-events shared via viewer-overlay group above */
    position: absolute; bottom: var(--space-2); left: var(--space-3);
    display: flex; align-items: flex-end; gap: var(--space-1);
}
.viewer__scale-bar-line {
    height: 6px; min-width: 20px;
    border-left: 1.5px solid var(--color-text-secondary);
    border-bottom: 1.5px solid var(--color-text-secondary);
    border-right: 1.5px solid var(--color-text-secondary);
}
.viewer__scale-bar-label {
    font-size: var(--font-size-xs); font-family: var(--font-family-mono);
    color: var(--color-text-secondary); line-height: 1; white-space: nowrap;
}

/* ----------------------------------------
   Feature Popup
   ---------------------------------------- */
.feature-popup {
    display: none;
    position: absolute;
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
    padding: var(--space-3) var(--space-4);
    font-size: var(--font-size-sm);
    min-width: 190px;
    max-width: 280px;
    z-index: var(--z-index-popup);
    pointer-events: none;
}
.feature-popup.visible { display: block; }
.feature-popup__title {
    font-weight: var(--font-weight-bold); font-size: var(--font-size-sm);
    margin-bottom: var(--space-2); display: flex; align-items: center; gap: var(--space-2);
    padding-bottom: var(--space-2); border-bottom: 1px solid var(--color-border-light);
}
.feature-popup__badge {
    /* shared via filled-badge + code-badge groups above */
    background: var(--color-primary); color: var(--color-text-inverse);
    letter-spacing: var(--letter-spacing-caps);
}
.feature-popup__row {
    display: flex; justify-content: space-between; gap: var(--space-3);
    padding: var(--space-1) 0;
}
.feature-popup__label {
    /* shared via muted-description group above */
    font-size: var(--font-size-sm);
}
.feature-popup__value { font-weight: var(--font-weight-semibold); text-align: right; font-family: var(--font-family-mono); font-size: var(--font-size-sm); word-break: break-all; }
.feature-popup__color-swatch {
    /* shared via color-dot group above */
    width: 12px; height: 12px;
    border: 1px solid rgba(0, 0, 0, 0.15); vertical-align: middle;
}

/* ----------------------------------------
   Console
   ---------------------------------------- */
#console-panel { display: block; }

/* Collapsible panels */
.panel__header--toggle { cursor: pointer; user-select: none; }
.panel__chevron {
    /* size, display, transition shared via chevron group above */
    margin-left: auto;
}
.panel:not(.open) .panel__chevron { transform: rotate(-90deg); }
.panel:not(.open) > :not(.panel__header) { display: none; }
.console-body {
    padding: var(--space-3) var(--space-4); max-height: 200px; overflow-y: auto;
    font-family: var(--font-family-mono); font-size: var(--font-size-sm); line-height: var(--line-height-relaxed); color: var(--color-text-primary);
}
.log-info { color: var(--color-primary); }
.log-success { color: var(--color-success); }
.log-error { color: var(--color-error); }
.log-warn { color: var(--color-warning); }

/* ----------------------------------------
   Fullscreen
   ---------------------------------------- */
#validation-panel:fullscreen {
    display: flex; flex-direction: column;
    background: var(--color-bg-primary); margin: 0;
}
#validation-panel:fullscreen .validation-body { flex: 1; display: flex; flex-direction: column; min-height: 0; }
#validation-panel:fullscreen .validation-split { flex: 1; height: auto; min-height: 0; }
#validation-panel:fullscreen .validation-viewer { flex: 1; min-height: 0; }
#validation-panel:fullscreen .viewer__canvas-wrap { height: 100%; }

/* ----------------------------------------
   Validation Panel – Split View
   ---------------------------------------- */
.validation-tabs {
    /* bg + border shared via section-bar group above */
    display: flex; gap: 0; padding: 0 var(--space-4); align-items: stretch;
    overflow-x: auto; overflow-y: hidden; flex-shrink: 0;
}
.validation-tabs__tab {
    /* shared via nav-link group above */
    padding: var(--space-2) var(--space-3); font-size: var(--font-size-sm); font-weight: var(--font-weight-semibold);
    border-bottom: 2px solid transparent; margin-bottom: -1px;
    transition: color var(--duration-normal), border-color var(--duration-normal);
}
.validation-tabs__tab--active {
    color: var(--color-text-primary); border-bottom: 2px solid var(--color-primary);
}

.validation-body { position: relative; }

/* Split layout: side panel (35%) + viewer (65%) */
.validation-split {
    display: flex; height: clamp(500px, calc(100vh - 280px), 900px);
}
.validation-side {
    width: 35%; min-width: 280px; max-width: 420px;
    border-right: 1px solid var(--color-border);
    display: flex; flex-direction: column; overflow: hidden;
}
.validation-side__toolbar {
    /* bg + border shared via section-bar group above */
    display: flex; gap: var(--space-3); padding: var(--space-2) var(--space-4); align-items: center;
    flex-shrink: 0;
}
.validation-side__toolbar .layer-toggle {
    flex-shrink: 0; width: 18px; height: 18px;
}
.validation-side__toolbar .layers-search { flex: 1; min-width: 0; min-height: var(--min-target-size); font-size: var(--font-size-sm); padding: var(--space-2) var(--space-3); }
.validation-side__list { flex: 1; overflow-y: auto; }
.validation-side__summary {
    /* bg shared via section-bar group above; border-top instead of bottom */
    border-top: 1px solid var(--color-border); border-bottom: none;
    padding: var(--space-2) var(--space-4); flex-shrink: 0;
    font-size: var(--font-size-sm);
}
.validation-side__summary:empty { display: none; }
.validation-viewer { flex: 1; min-width: 0; position: relative; overflow: hidden; }

/* Dashboard (KPI) – full width, no viewer */
.validation-dashboard {
    display: none;
}
.kpi-dashboard-content { padding: var(--space-4); }

/* ----------------------------------------
   Side Panel List Items
   ---------------------------------------- */
.vside-item {
    display: flex; align-items: center; gap: var(--space-3);
    padding: var(--space-2) var(--space-4); font-size: var(--font-size-sm);
    cursor: pointer; user-select: none; transition: background var(--duration-fast);
    min-height: var(--min-target-size);
}
.vside-item + .vside-item { border-top: 1px solid var(--color-border-light); }
.vside-item:hover { background: var(--color-primary-light); }
.vside-item.hidden { opacity: 0.35; }
.vside-item--selected {
    background: var(--color-primary-alpha-12) !important;
    border-left: 3px solid var(--color-primary);
    padding-left: calc(var(--space-4) - 3px);
}
.vside-item--error .vside-item__status { color: var(--color-error); }
.vside-item--warning .vside-item__status { color: var(--color-warning); }
.vside-item--ok .vside-item__status { color: var(--color-success); }
.vside-item__toggle {
    width: 18px; height: 18px; flex-shrink: 0;
    cursor: pointer; accent-color: var(--color-primary);
}
.vside-item__icon {
    /* shared via color-dot group above */
    width: 14px; height: 14px;
}
.vside-item__name {
    /* truncation shared via muted-description group above */
    flex: 1;
}
/* Error tab: grid layout for aligned columns */
.vside-item--errors {
    display: grid;
    grid-template-columns: 18px 90px 120px 1fr;
    gap: var(--space-3);
}
.vside-item__rule-id {
    /* shared via filled-badge group above */
    font-weight: var(--font-weight-regular);
}
.vside-item__elem-ref {
    /* shared via muted-description group above; font-size inherited from .vside-item */
}
.vside-item__desc {
    /* shared via muted-description group above; font-size inherited from .vside-item */
}
.vside-item__value {
    /* shared via mono-value group above */
    color: var(--color-text-secondary);
    text-align: right;
}
.vside-item__status {
    font-weight: var(--font-weight-semibold); width: 18px; text-align: center; flex-shrink: 0;
}

/* ----------------------------------------
   KPI Dashboard
   ---------------------------------------- */
.val-kpi { display: grid; grid-template-columns: 55fr 45fr; gap: var(--space-6); }
.val-kpi > div { display: flex; flex-direction: column; gap: var(--space-5); }
.val-kpi-title { margin-bottom: var(--space-2); }
.val-kpi-table { width: 100%; border-collapse: collapse; font-size: var(--font-size-sm); border: 1px solid var(--color-border); overflow: hidden; }
.val-kpi-table td { /* padding via table-cell group */ border-bottom: 1px solid var(--color-border-light); }
.val-kpi-table tr:last-child td { border-bottom: none; }
.val-kpi-table tr:hover { background: var(--color-primary-light); }
.val-kpi-table .kpi-abbr { font-weight: var(--font-weight-semibold); white-space: nowrap; width: 70px; }
.val-kpi-table .kpi-value { text-align: right; font-variant-numeric: tabular-nums; font-family: var(--font-family-mono); white-space: nowrap; }
.val-kpi-table .kpi-pct { text-align: right; color: var(--color-text-secondary); width: 55px; font-variant-numeric: tabular-nums; }
.val-kpi-table .kpi-layer-cell { font-size: var(--font-size-xs); color: var(--color-text-secondary); }
.val-kpi-table .kpi-sep td { border-top: 1px solid var(--color-border); font-weight: var(--font-weight-semibold); }

/* Donut Chart */
.val-donut { display: flex; align-items: center; gap: var(--space-4); margin-top: var(--space-3); }
.val-donut svg { width: 160px; height: 160px; flex-shrink: 0; }
.val-donut-legend { display: flex; flex-direction: column; gap: var(--space-2); }
.val-donut-legend__item { display: flex; align-items: center; gap: var(--space-2); font-size: var(--font-size-sm); }
.val-donut-legend__color {
    /* shared via color-dot group above */
    width: 12px; height: 12px;
}
.val-donut-legend__pct {
    /* shared via mono-value group above */
    color: var(--color-text-secondary); margin-left: auto;
}

.val-empty { text-align: center; padding: var(--space-5) var(--space-4); color: var(--color-text-secondary); font-size: var(--font-size-sm); line-height: var(--line-height-normal); }

/* ----------------------------------------
   Validation Rules Tab (Flat Table)
   ---------------------------------------- */
.rules-row {
    display: flex; align-items: center; gap: var(--space-3);
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-sm); cursor: pointer;
    transition: background var(--duration-fast);
    min-height: var(--min-target-size);
}
.rules-row + .rules-row { border-top: 1px solid var(--color-border-light); }
.rules-row:hover { background: var(--color-primary-light); }
.rules-row__code {
    /* shared via filled-badge group above; layout-only here */
    font-weight: var(--font-weight-regular);
    width: 90px; flex-shrink: 0;
}
.rules-row__sev {
    width: 20px; flex-shrink: 0; text-align: center;
    font-weight: var(--font-weight-bold);
}
.rules-row__sev--pass { color: var(--color-success); }
.rules-row__sev--fail { color: var(--color-error); }
.rules-row__sev--warn { color: var(--color-warning); }
.rules-row__desc {
    /* shared via muted-description group above */
    flex: 1;
}
.rules-row__count {
    /* shared via mono-value group above */
    width: 40px; flex-shrink: 0; text-align: right;
    color: var(--color-text-secondary);
}
.rules-row__count--active { color: var(--color-error); font-weight: var(--font-weight-semibold); }
.rules-cat-sep {
    /* font shared via uppercase-label group; bg + border via section-bar group */
    display: flex; align-items: center; gap: var(--space-3);
    padding: var(--space-2) var(--space-4);
    cursor: pointer; user-select: none;
    min-height: var(--min-target-size);
}
.rules-cat-sep:hover { background: var(--color-primary-light); }
/* chevron: size, display, transition, ::after shared via chevron group above */
.rules-cat-sep--collapsed .rules-cat-sep__chevron { transform: rotate(-90deg); }
.rules-cat-sep__label { flex: 1; }
.rules-cat-sep__stats {
    /* shared via mono-value group above */
    font-size: var(--font-size-xs);
}

/* ========================================
   Responsive: Tablet & Phone (max-width: 768px)
   ======================================== */
@media (max-width: 768px) {

    /* -- Header -- */
    .header__content {
        flex-wrap: wrap;
        padding: var(--space-3) var(--space-4);
    }
    .header__name { display: none; }
    .header__sep { display: none; }
    .header__titles { display: none; }
    .lang-selector {
        border-left: none;
        padding-left: 0;
        margin-left: auto;
        gap: var(--space-1);
    }
    .lang-selector__item {
        min-width: var(--min-target-size-touch); min-height: var(--min-target-size-touch);
    }
    .header__menu-btn {
        display: flex;
        align-items: center; justify-content: center;
        width: var(--min-target-size-touch); height: var(--min-target-size-touch);
        border: none; background: none; cursor: pointer;
        color: var(--color-text-secondary);
        margin-left: var(--space-1);
    }
    .header__menu-btn > svg { width: var(--icon-size-lg); height: var(--icon-size-lg); }
    .header__nav {
        display: none;
        flex-basis: 100%;
        flex-direction: column;
        gap: 0;
        border-top: 1px solid var(--color-border);
        padding-top: var(--space-2);
        margin-top: var(--space-2);
        overflow: hidden;
        order: 20;
        margin-left: 0;
    }
    .header__nav.open { display: flex; }
    .header__nav-link {
        padding: var(--space-3) 0;
        font-size: var(--font-size-sm);
        min-height: var(--min-target-size-touch);
        display: flex; align-items: center;
        border-bottom: 1px solid var(--color-border-light);
    }
    .header__nav-link:last-child { border-bottom: none; }

    /* -- Container -- */
    .container { padding: 0 var(--space-4); margin: var(--space-4) auto; }

    /* -- Upload Zone -- */
    .upload-zone { padding: var(--space-5) var(--space-4); }
    .upload-zone svg { width: 36px; height: 36px; }
    .upload-zone .btn { width: 100%; justify-content: center; }

    /* -- Validation Tabs (wrap on mobile) -- */
    .validation-tabs {
        flex-wrap: wrap;
        padding: 0 var(--space-2);
    }
    .validation-tabs__tab {
        font-size: var(--font-size-xs);
        padding: var(--space-2);
        min-height: var(--min-target-size-touch);
    }
    .validation-tabs .status-filter {
        width: 100%;
        justify-content: flex-end;
        margin-left: 0;
        padding-left: 0;
        border-top: 1px solid var(--color-border-light);
    }

    /* -- Viewer Controls Overlay (compact on mobile) -- */
    .viewer__controls {
        gap: var(--space-1);
        padding: var(--space-1);
    }

    /* -- Validation Split (vertical stack, flex-based) -- */
    .validation-split { flex-direction: column; height: auto; }
    .validation-side {
        width: 100%; max-width: none; min-width: 0;
        border-right: none;
        border-bottom: 1px solid var(--color-border);
        flex-shrink: 0;
    }
    .validation-side__list {
        max-height: 30vh;
    }
    .validation-side__toolbar {
        padding: var(--space-2) var(--space-4);
    }
    .validation-side__toolbar .layers-search {
        padding: var(--space-2) var(--space-3);
        min-height: var(--min-target-size-touch);
        font-size: var(--font-size-sm);
    }
    .validation-side__toolbar .layer-toggle {
        width: 22px; height: 22px;
    }
    .validation-viewer {
        flex: none;
        height: 50vh;
        min-height: 300px;
    }

    /* -- Touch Targets -- */
    .viewer__controls > button {
        width: var(--min-target-size-touch); height: var(--min-target-size-touch);
    }
    .vside-item {
        min-height: var(--min-target-size-touch);
        padding: var(--space-2) var(--space-4);
    }
    .vside-item__toggle {
        width: 22px; height: 22px;
    }
    .vside-item--errors {
        grid-template-columns: 18px 80px 1fr;
    }
    .vside-item--errors .vside-item__elem-ref {
        display: none;
    }
    .status-filter__btn {
        min-height: var(--min-target-size-touch);
        padding: var(--space-2) var(--space-3);
    }

    /* -- Feature Popup (bottom card) -- */
    .feature-popup {
        bottom: var(--space-3);
        left: var(--space-3);
        right: var(--space-3);
        top: auto !important;
        max-width: none;
        min-width: 0;
        pointer-events: auto;
        border-radius: var(--radius-lg);
        box-shadow: var(--shadow-xl);
    }

    /* -- Coords Display (hidden on mobile) -- */
    .viewer__coords { display: none; }

    /* -- Info Grid -- */
    .info-grid { grid-template-columns: repeat(2, 1fr); }
    .info-grid__value { font-size: var(--font-size-base); }

    /* -- KPI -- */
    .val-kpi { grid-template-columns: 1fr; }

    /* -- Footer -- */
    .footer__content {
        flex-direction: column; gap: var(--space-2);
        text-align: center; padding: var(--space-3) var(--space-4);
    }
    .footer__sep { display: none; }
    .footer__links {
        justify-content: center;
        gap: var(--space-3);
    }
}

/* Hidden on desktop */
.header__menu-btn { display: none; order: 11; }

/* ========================================
   Responsive: Small Phone (max-width: 480px)
   ======================================== */
@media (max-width: 480px) {
    .container { padding: 0 var(--space-3); }
    .upload-zone { padding: var(--space-5) var(--space-3); }
    .panel__header { padding: var(--space-2) var(--space-3); }

    /* Compact lang selector */
    .lang-selector__item {
        min-width: 36px; min-height: 36px;
        font-size: var(--font-size-xs);
    }

    /* Single column info grid on very small screens */
    .info-grid { grid-template-columns: 1fr; }

    /* Tighter side panel list */
    .validation-side__list { max-height: 25vh; }

    /* Give viewer more space */
    .validation-viewer { height: 55vh; }

    /* Compact metrics */
    .val-metrics { grid-template-columns: repeat(2, 1fr); gap: var(--space-2); }
    .val-metric { padding: var(--space-2) var(--space-3); }
    .val-metric__value { font-size: var(--font-size-base); }

    /* Donut chart responsive */
    .val-donut { flex-direction: column; align-items: flex-start; }
    .val-donut svg { width: 120px; height: 120px; }

    /* Footer — tighter on small phones */
    .footer__links { gap: var(--space-2); flex-wrap: wrap; }
    .footer__link { font-size: var(--font-size-xs); min-height: 36px; }
}

/* ========================================
   API Documentation View
   ======================================== */
.api-docs {
    width: 100%; max-width: var(--container-max-width); margin: 0 auto;
    padding: var(--space-5) var(--space-5) var(--space-8);
}
.api-docs__main { max-width: 100%; }

/* Hero */
.api-docs__hero { margin-bottom: var(--space-6); }
.api-docs__title {
    font-size: var(--font-size-heading-2); font-weight: var(--font-weight-bold);
    color: var(--color-text-primary); margin-bottom: var(--space-3);
}
.api-docs__meta {
    display: flex; align-items: center; gap: var(--space-3); margin-bottom: var(--space-4);
}
.api-docs__version {
    /* shared via filled-badge + code-badge groups above */
    background: var(--color-primary); color: var(--color-text-inverse);
    padding: var(--space-1) var(--space-3);
}
.api-docs__server {
    font-size: var(--font-size-sm); color: var(--color-text-secondary);
    font-family: var(--font-family-mono); background: var(--color-bg-secondary);
    padding: var(--space-1) var(--space-3); border-radius: var(--radius-sm);
}
.api-docs__intro {
    font-size: var(--font-size-sm); color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed); max-width: 720px;
}

/* Auth & Groups */
.api-docs__auth, .api-docs__group { margin-bottom: var(--space-6); }
.api-docs__auth p, .api-docs__group-desc {
    font-size: var(--font-size-sm); color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed); margin-bottom: var(--space-3);
}
.api-docs__auth code, .api-docs__desc code {
    background: var(--color-bg-secondary); padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-sm); font-family: var(--font-family-mono);
    font-size: var(--font-size-sm);
}
.api-docs__group-title {
    font-size: var(--font-size-heading-4); font-weight: var(--font-weight-bold);
    color: var(--color-text-primary); margin-bottom: var(--space-3);
    padding-bottom: var(--space-2); border-bottom: 1px solid var(--color-border);
}

/* Endpoint Card */
.api-docs__endpoint {
    border: 1px solid var(--color-border); margin-bottom: var(--space-3);
    background: var(--color-bg-primary); transition: box-shadow var(--duration-normal);
}
.api-docs__endpoint.expanded { box-shadow: var(--shadow-sm); }
.api-docs__endpoint-header {
    display: flex; align-items: center; gap: var(--space-3);
    padding: var(--space-3) var(--space-4); cursor: pointer;
    transition: background var(--duration-fast);
    min-height: var(--min-target-size);
}
.api-docs__endpoint-header:hover { background: var(--color-bg-secondary); }
.api-docs__method {
    /* shared via filled-badge + code-badge groups above */
    font-weight: var(--font-weight-bold);
    color: var(--color-text-inverse);
    padding: var(--space-1) var(--space-3);
    min-width: 52px; text-align: center;
    letter-spacing: var(--letter-spacing-caps);
}
.api-docs__method--success { background: var(--color-success); }
.api-docs__method--primary { background: var(--color-primary); }
.api-docs__method--warning { background: var(--color-warning); }
.api-docs__method--error { background: var(--color-error); }
.api-docs__path {
    font-family: var(--font-family-mono); font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold); color: var(--color-text-primary);
}
.api-docs__param { color: var(--color-primary); }
.api-docs__summary {
    font-size: var(--font-size-sm); color: var(--color-text-secondary);
    margin-left: auto; white-space: nowrap;
}
.api-docs__chevron {
    width: 16px; height: 16px; color: var(--color-text-secondary); flex-shrink: 0;
    transition: transform var(--duration-normal);
}
.api-docs__endpoint.expanded .api-docs__chevron { transform: rotate(180deg); }

/* Detail Panel */
.api-docs__detail {
    display: none; padding: var(--space-4);
    border-top: 1px solid var(--color-border); background: var(--color-bg-secondary);
}
.api-docs__detail.open { display: block; }
.api-docs__desc {
    font-size: var(--font-size-sm); color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed); margin-bottom: var(--space-4);
}
.api-docs__section-label {
    /* font shared via uppercase-label group above */
    margin: var(--space-4) 0 var(--space-2);
}
.api-docs__section-label:first-child { margin-top: 0; }
.api-docs__content-type {
    font-weight: var(--font-weight-regular); text-transform: none;
    letter-spacing: 0; font-family: var(--font-family-mono);
}

/* Schema Table */
.api-docs__schema {
    width: 100%; border-collapse: collapse; font-size: var(--font-size-sm);
    margin-bottom: var(--space-3); border: 1px solid var(--color-border);
    background: var(--color-bg-primary);
}
.api-docs__schema th {
    /* font shared via uppercase-label group; padding via table-cell group */
    text-align: left;
    background: var(--color-bg-secondary); border-bottom: 1px solid var(--color-border);
}
.api-docs__schema td {
    /* padding via table-cell group */
    border-bottom: 1px solid var(--color-border-light);
    vertical-align: top;
}
.api-docs__schema tr:last-child td { border-bottom: none; }
.api-docs__schema code {
    background: var(--color-bg-secondary); padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-sm); font-family: var(--font-family-mono);
    font-size: var(--font-size-sm); font-weight: var(--font-weight-semibold);
}
.api-docs__type {
    /* shared via code-badge group above */
    font-size: var(--font-size-sm); color: var(--color-primary);
}
.api-docs__required {
    /* shared via code-badge group above */
    display: inline-block; font-size: var(--font-size-sm); color: var(--color-error);
}

/* Response Badges */
.api-docs__response {
    display: flex; align-items: center; gap: var(--space-3);
    padding: var(--space-2) 0; font-size: var(--font-size-sm);
}
.api-docs__status {
    /* shared via filled-badge + code-badge groups above */
    font-weight: var(--font-weight-bold);
}
.api-docs__status--success { background: var(--color-success-light); color: var(--color-success); }
.api-docs__status--error { background: var(--color-error-light); color: var(--color-error); }
.api-docs__status--warning { background: var(--color-warning-light); color: var(--color-warning); }

/* Code Example */
.api-docs__example {
    background: var(--color-bg-primary); border: 1px solid var(--color-border);
    padding: var(--space-3) var(--space-4); font-family: var(--font-family-mono);
    font-size: var(--font-size-sm); line-height: var(--line-height-relaxed);
    overflow-x: auto; margin-bottom: var(--space-3); white-space: pre-wrap;
    word-break: break-all;
}

/* API Docs Responsive */
@media (max-width: 768px) {
    .api-docs { padding: var(--space-4); }
    .api-docs__summary { display: none; }
    .api-docs__endpoint-header { padding: var(--space-3); }
    .api-docs__detail { padding: var(--space-3); }
    .api-docs__schema th, .api-docs__schema td { padding: var(--space-1) var(--space-2); }
    .api-docs__title { font-size: var(--font-size-heading-3); }
}

/* ========================================
   Safe area insets (notch phones)
   ======================================== */
@supports (padding: env(safe-area-inset-bottom)) {
    @media (max-width: 768px) {
        .footer__content {
            padding-bottom: calc(var(--space-3) + env(safe-area-inset-bottom));
        }
        .feature-popup {
            bottom: calc(var(--space-3) + env(safe-area-inset-bottom));
        }
    }
}