/* ===========================================
   KPI Dashboard V2 Styles v1.0

   Namespaced with kpi-* prefix.
   Uses CSS custom properties for theming
   (set by KpiThemeManager).
   =========================================== */

/* ============================================
   CSS CUSTOM PROPERTY DEFAULTS (Light theme)
   ============================================ */

#panel-kpi-dashboard {
    --kpi-bg: #F3F4F6;
    --kpi-surface: #FFFFFF;
    --kpi-surface-hover: #F9FAFB;
    --kpi-text-primary: #1F2937;
    --kpi-text-secondary: #6B7280;
    --kpi-text-muted: #9CA3AF;
    --kpi-border: #E5E7EB;
    --kpi-border-strong: #D1D5DB;
    --kpi-primary: #0088FE;
    --kpi-primary-bg: #DBEAFE;
    --kpi-secondary: #00C49F;
    --kpi-success: #10B981;
    --kpi-success-bg: #D1FAE5;
    --kpi-warning: #F59E0B;
    --kpi-warning-bg: #FEF3C7;
    --kpi-error: #EF4444;
    --kpi-error-bg: #FEE2E2;
    --kpi-info: #3B82F6;
    --kpi-info-bg: #DBEAFE;
    --kpi-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --kpi-shadow-lg: 0 2px 8px rgba(0, 0, 0, 0.1);
    --kpi-chart-1: #0088FE;
    --kpi-chart-2: #00C49F;
    --kpi-chart-3: #FFBB28;
    --kpi-chart-4: #FF8042;
    --kpi-chart-5: #8884D8;
}

/* ============================================
   NAVIGATION TABS (top-level views)
   ============================================ */

.kpi-nav-tabs {
    display: flex;
    gap: 0;
    overflow-x: auto;
}

.kpi-nav-tab {
    padding: 12px 20px;
    border: none;
    background: transparent;
    color: var(--kpi-text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    white-space: nowrap;
    transition: color 0.15s, border-color 0.15s, background 0.15s;
}

.kpi-nav-tab:hover {
    color: var(--kpi-text-primary);
    background: rgba(0, 0, 0, 0.03);
}

.kpi-nav-tab--active {
    color: var(--kpi-primary);
    border-bottom-color: var(--kpi-primary);
    font-weight: 600;
}

/* ============================================
   DASHBOARD TAB BAR (multi-tab within dashboard view)
   ============================================ */

.kpi-tab-bar {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 0 16px;
    background: var(--kpi-surface);
    border-bottom: 1px solid var(--kpi-border);
    overflow-x: auto;
}

.kpi-tab-list {
    display: flex;
    gap: 2px;
}

.kpi-tab {
    padding: 10px 16px;
    border: none;
    background: transparent;
    color: var(--kpi-text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: color 0.15s, border-color 0.15s;
}

.kpi-tab:hover {
    color: var(--kpi-text-primary);
    background: var(--kpi-surface-hover);
}

.kpi-tab--active {
    color: var(--kpi-primary);
    border-bottom-color: var(--kpi-primary);
    font-weight: 600;
}

.kpi-tab--add {
    color: var(--kpi-text-muted);
    font-size: 1.25rem;
    padding: 8px 12px;
    border-radius: 4px;
}

.kpi-tab--add:hover {
    color: var(--kpi-primary);
    background: var(--kpi-primary-bg);
}

.kpi-tab__close {
    font-size: 1rem;
    opacity: 0.5;
    cursor: pointer;
}

.kpi-tab__close:hover {
    opacity: 1;
    color: var(--kpi-error);
}

/* ============================================
   GRID WIDGETS
   ============================================ */

.kpi-widget {
    background: var(--kpi-surface);
    border-radius: 8px;
    box-shadow: var(--kpi-shadow);
    height: 100%;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.kpi-widget__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    border-bottom: 1px solid var(--kpi-border);
    min-height: 44px;
}

.kpi-widget__title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--kpi-text-primary);
    margin: 0;
}

.kpi-widget__actions {
    display: flex;
    align-items: center;
    gap: 6px;
}

.kpi-widget__remove {
    background: none;
    border: none;
    font-size: 1.2rem;
    color: var(--kpi-text-muted);
    cursor: pointer;
    padding: 2px 6px;
    border-radius: 4px;
    line-height: 1;
}

.kpi-widget__remove:hover {
    color: var(--kpi-error);
    background: var(--kpi-error-bg);
}

.kpi-widget__content {
    flex: 1;
    padding: 16px;
    overflow: auto;
}

.kpi-widget__loading {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--kpi-text-muted);
    font-size: 0.875rem;
}

/* ============================================
   BADGES / STICKERS
   ============================================ */

.kpi-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.625rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.kpi-badge--live {
    background: var(--kpi-success);
    color: white;
}

.kpi-badge--wip {
    background: var(--kpi-error);
    color: white;
}

.kpi-badge--default {
    background: var(--kpi-info-bg);
    color: var(--kpi-info);
}

/* ============================================
   MODAL / WIZARD
   ============================================ */

.kpi-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.kpi-modal {
    background: var(--kpi-surface, #FFFFFF);
    border-radius: 12px;
    max-width: 700px;
    width: 90%;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.kpi-modal__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid var(--kpi-border, #E5E7EB);
}

.kpi-modal__header h2 {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--kpi-text-primary, #1F2937);
}

.kpi-modal__close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--kpi-text-muted, #9CA3AF);
    line-height: 1;
}

.kpi-modal__close:hover {
    color: var(--kpi-text-primary, #1F2937);
}

/* Wizard Tabs */

.kpi-wizard__tabs {
    display: flex;
    border-bottom: 1px solid var(--kpi-border, #E5E7EB);
    padding: 0 24px;
}

.kpi-wizard__tab {
    padding: 12px 20px;
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    font-size: 0.875rem;
    color: var(--kpi-text-secondary, #6B7280);
    font-weight: 500;
}

.kpi-wizard__tab:hover {
    color: var(--kpi-text-primary, #1F2937);
}

.kpi-wizard__tab--active {
    color: var(--kpi-primary, #3B82F6);
    border-bottom-color: var(--kpi-primary, #3B82F6);
    font-weight: 600;
}

.kpi-wizard__body {
    padding: 24px;
    overflow-y: auto;
    flex: 1;
}

.kpi-wizard__footer {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 16px 24px;
    border-top: 1px solid var(--kpi-border, #E5E7EB);
}

/* ============================================
   FORM ELEMENTS
   ============================================ */

.kpi-form-group {
    margin-bottom: 16px;
}

.kpi-form-group > label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--kpi-text-primary, #374151);
    margin-bottom: 6px;
}

.kpi-input {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--kpi-border-strong, #D1D5DB);
    border-radius: 6px;
    font-size: 0.875rem;
    color: var(--kpi-text-primary, #1F2937);
    background: var(--kpi-surface, #FFFFFF);
    box-sizing: border-box;
}

.kpi-input:focus {
    outline: none;
    border-color: var(--kpi-primary, #3B82F6);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.kpi-input-color {
    width: 60px;
    height: 36px;
    padding: 2px;
    border: 1px solid var(--kpi-border-strong, #D1D5DB);
    border-radius: 6px;
    cursor: pointer;
}

.kpi-textarea {
    min-height: 80px;
    font-family: 'Courier New', monospace;
    resize: vertical;
}

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

.kpi-checkbox-group {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.kpi-checkbox-label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.875rem;
    color: var(--kpi-text-secondary, #6B7280);
    cursor: pointer;
}

/* ============================================
   THEME SELECTOR
   ============================================ */

.kpi-theme-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
}

.kpi-theme-bar label {
    font-size: 0.8rem;
    color: var(--kpi-text-secondary);
    font-weight: 500;
}

.kpi-theme-bar select {
    padding: 4px 8px;
    border: 1px solid var(--kpi-border-strong);
    border-radius: 4px;
    font-size: 0.8rem;
    background: var(--kpi-surface);
    color: var(--kpi-text-primary);
}

/* ============================================
   EDIT MODE OVERRIDES
   ============================================ */

.kpi-edit-active .grid-stack-item {
    cursor: move;
}

.kpi-edit-active .kpi-widget {
    border: 2px dashed var(--kpi-primary, #3B82F6);
}

.kpi-edit-active .kpi-widget__remove {
    display: inline-block !important;
}

/* ============================================
   GRIDSTACK OVERRIDES
   ============================================ */

#panel-kpi-dashboard .grid-stack {
    background: transparent;
}

#panel-kpi-dashboard .grid-stack-item-content {
    background: transparent;
    border-radius: 8px;
    overflow: visible;
}

#panel-kpi-dashboard .grid-stack-placeholder > .placeholder-content {
    background: var(--kpi-primary-bg, #DBEAFE);
    border: 2px dashed var(--kpi-primary, #3B82F6);
    border-radius: 8px;
}

/* ============================================
   RESPONSIVE
   ============================================ */

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

    .kpi-tab-bar {
        padding: 0 8px;
    }

    .kpi-tab {
        padding: 8px 12px;
        font-size: 0.8rem;
    }

    .kpi-modal {
        width: 95%;
        max-height: 90vh;
    }
}

/* ============================================
   STANDALONE SHELL (E1)
   ============================================ */

.kpi-shell {
    display: flex;
    flex-direction: column;
    height: 100vh;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

.kpi-shell__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    height: 56px;
    background: var(--kpi-surface);
    border-bottom: 1px solid var(--kpi-border);
    box-shadow: var(--kpi-shadow);
}

.kpi-shell__logo {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--kpi-text-primary);
}

.kpi-shell__nav {
    display: flex;
    align-items: center;
    height: 44px;
    padding: 0 24px;
    background: var(--kpi-surface);
    border-bottom: 1px solid var(--kpi-border);
    gap: 4px;
    overflow-x: auto;
}

.kpi-shell__nav-item {
    padding: 10px 16px;
    border: none;
    background: transparent;
    color: var(--kpi-text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    white-space: nowrap;
}

.kpi-shell__nav-item:hover {
    color: var(--kpi-text-primary);
}

.kpi-shell__nav-item--active {
    color: var(--kpi-primary);
    border-bottom-color: var(--kpi-primary);
}

.kpi-shell__content {
    flex: 1;
    overflow-y: auto;
    background: var(--kpi-bg);
}

.kpi-shell__login {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    background: var(--kpi-bg);
}

.kpi-shell__login-form {
    background: var(--kpi-surface);
    padding: 40px;
    border-radius: 12px;
    box-shadow: var(--kpi-shadow-lg);
    width: 360px;
    max-width: 90%;
}

.kpi-shell__login-form h1 {
    margin: 0 0 24px 0;
    font-size: 1.5rem;
    color: var(--kpi-text-primary);
}

/* ============================================
   METRIC LIBRARY SIDEBAR
   ============================================ */

.kpi-sidebar {
    position: fixed;
    top: 0;
    right: 0;
    width: 400px;
    height: 100vh;
    background: var(--bg-primary, #ffffff);
    box-shadow: -4px 0 12px rgba(0, 0, 0, 0.15);
    z-index: 1000;
    overflow-y: auto;
}

.kpi-sidebar__header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border, #d1d5db);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.kpi-sidebar__title {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0;
    color: var(--text-primary, #0f172a);
}

.kpi-sidebar__close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-muted, #94a3b8);
    line-height: 1;
    padding: 4px;
    border-radius: 4px;
}

.kpi-sidebar__close:hover {
    color: var(--text-primary, #0f172a);
    background: var(--bg-tertiary, #f1f5f9);
}

.kpi-sidebar__content {
    padding: 1.5rem;
}

/* ============================================
   NAV TABS (Style Guide Compliance)
   ============================================ */

.kpi-nav-tabs {
    display: flex;
    background: var(--bg-secondary, #f8fafc);
    border-bottom: 2px solid var(--border, #d1d5db);
    padding: 0 1.5rem;
    overflow-x: auto;
}