/**
 * MailHealth Design System & Stylesheet
 * Location: /web/assets/css/style.css
 * Enterprise DMARC & DNS Deliverability Sentinel
 */

/* =====================================================================
   1. Design Tokens & CSS Custom Properties
   ===================================================================== */
:root {
    /* Tinted Dark Slate Neutrals */
    --bg-base: #0c1017;
    --bg-surface: #131924;
    --bg-surface-elevated: #1a2232;
    --bg-surface-subtle: #161e2c;
    --bg-surface-glass: rgba(19, 25, 36, 0.88);
    
    /* Technical Structural Borders */
    --border-color: #222d3f;
    --border-subtle: #182232;
    --border-focus: #3b82f6;
    
    /* Text Hierarchy (Tinted off-whites to meet WCAG AA contrast) */
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --text-inverse: #0c1017;
    
    /* Primary Accent (Technical Royal Blue) */
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --primary-subtle: rgba(37, 99, 235, 0.12);
    --primary-border: rgba(37, 99, 235, 0.35);
    
    /* Secondary Accent (Subdued Cyan) */
    --secondary-accent: #0ea5e9;
    --secondary-subtle: rgba(14, 165, 233, 0.12);
    
    /* Semantic State Indicators */
    --success: #10b981;
    --success-bg: rgba(16, 185, 129, 0.1);
    --success-border: rgba(16, 185, 129, 0.3);
    --success-text: #34d399;

    --danger: #ef4444;
    --danger-bg: rgba(239, 68, 68, 0.1);
    --danger-border: rgba(239, 68, 68, 0.3);
    --danger-text: #f87171;

    --warning: #f59e0b;
    --warning-bg: rgba(245, 158, 11, 0.1);
    --warning-border: rgba(245, 158, 11, 0.3);
    --warning-text: #fbbf24;

    --info: #06b6d4;
    --info-bg: rgba(6, 182, 212, 0.1);
    --info-border: rgba(6, 182, 212, 0.3);
    --info-text: #38bdf8;

    /* Restrained, Purposeful Radii (Sharp & Technical) */
    --radius-chip: 4px;
    --radius-input: 6px;
    --radius-button: 6px;
    --radius-card: 8px;
    --radius-modal: 10px;

    /* Typographic Hierarchy */
    --font-display: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-ui: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    /* Smooth Micro-interaction Transitions */
    --transition-fast: 150ms cubic-bezier(0.16, 1, 0.3, 1);
    --transition-base: 200ms cubic-bezier(0.16, 1, 0.3, 1);
}

/* =====================================================================
   2. Reset & Document Foundation
   ===================================================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    background-color: var(--bg-base);
    color-scheme: dark;
    overflow-x: hidden;
}

body {
    font-family: var(--font-ui);
    background-color: var(--bg-base);
    color: var(--text-primary);
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Accessible focus visible styling */
:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: #60a5fa;
}

button {
    font-family: inherit;
    cursor: pointer;
}

code, pre, .font-mono {
    font-family: var(--font-mono);
    font-feature-settings: "tnum" 1;
}

.font-display {
    font-family: var(--font-display);
    letter-spacing: -0.025em;
}

.font-semibold { font-weight: 600; }
.text-muted { color: var(--text-muted); }
.text-success { color: var(--success-text); }
.text-danger { color: var(--danger-text); }
.text-warning { color: var(--warning-text); }
.text-info { color: var(--info-text); }
.text-center { text-align: center; }
.text-right { text-align: right; }
.d-none { display: none !important; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }
.py-4 { padding-top: 1.5rem; padding-bottom: 1.5rem; }

/* =====================================================================
   3. Buttons & Interactive Controls (Micro-interactions)
   ===================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.625rem 1.125rem;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-button);
    border: 1px solid transparent;
    transition: background-color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
    line-height: 1.25;
    white-space: nowrap;
    min-height: 38px;
}

.btn:active {
    transform: scale(0.98);
}

.btn-primary {
    background-color: var(--primary);
    border-color: rgba(255, 255, 255, 0.1);
    color: #ffffff;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: var(--bg-surface-elevated);
    border-color: var(--border-color);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background-color: #222d3f;
    border-color: #334155;
    color: #ffffff;
    transform: translateY(-1px);
}

.btn-danger {
    background-color: var(--danger-bg);
    border-color: var(--danger-border);
    color: var(--danger-text);
}

.btn-danger:hover {
    background-color: var(--danger);
    border-color: var(--danger);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.25);
    transform: translateY(-1px);
}

.btn-ghost {
    background: transparent;
    border-color: transparent;
    color: var(--text-secondary);
}

.btn-ghost:hover {
    background-color: var(--bg-surface-elevated);
    color: var(--text-primary);
}

.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.8125rem;
    border-radius: var(--radius-button);
    min-height: 32px;
}

.btn-icon {
    width: 34px;
    height: 34px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-input);
}

.btn-icon svg {
    width: 16px;
    height: 16px;
}

.btn-block {
    width: 100%;
}

.btn-arrow {
    width: 16px;
    height: 16px;
    transition: transform var(--transition-fast);
}

.btn-primary:hover .btn-arrow {
    transform: translateX(3px);
}

/* =====================================================================
   4. Authentication Portal (Asymmetric 2-Column Architectural Layout)
   ===================================================================== */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1.5rem;
    background: radial-gradient(circle at 50% 0%, #151d2c 0%, #0c1017 65%);
}

.auth-wrapper {
    display: grid;
    grid-template-columns: 1.15fr 1fr;
    max-width: 920px;
    width: 100%;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-modal);
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.45);
    overflow: hidden;
}

.auth-context-panel {
    background: var(--bg-surface-subtle);
    border-right: 1px solid var(--border-color);
    padding: 3rem 2.5rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.context-brand {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.brand-icon-wrapper {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-card);
    background-color: var(--primary);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255, 255, 255, 0.15);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
    flex-shrink: 0;
}

.brand-shield {
    width: 26px;
    height: 26px;
}

.brand-kicker {
    font-size: 0.6875rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    font-weight: 700;
}

.brand-headline {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.1;
    letter-spacing: -0.02em;
}

.context-lead {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 2rem;
    max-width: 42ch;
}

.context-spec-list {
    border-top: 1px solid var(--border-subtle);
    padding-top: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.spec-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.8125rem;
}

.spec-key {
    color: var(--text-muted);
}

.spec-val {
    color: var(--text-primary);
    font-size: 0.75rem;
    background: var(--bg-surface-elevated);
    padding: 0.15rem 0.5rem;
    border-radius: var(--radius-chip);
    border: 1px solid var(--border-color);
}

.auth-main {
    padding: 3rem 2.5rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.auth-header {
    margin-bottom: 1.75rem;
}

.auth-title {
    font-family: var(--font-display);
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.auth-subtitle {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
}

.form-label {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.input-affix-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-icon {
    position: absolute;
    left: 12px;
    width: 18px;
    height: 18px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    pointer-events: none;
}

.input-icon svg {
    width: 18px;
    height: 18px;
}

.form-input {
    width: 100%;
    padding: 0.6875rem 1rem 0.6875rem 2.625rem;
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-input);
    color: var(--text-primary);
    font-size: 0.9375rem;
    font-family: inherit;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-subtle);
}

.auth-footer {
    margin-top: 1.75rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--border-subtle);
    text-align: center;
}

.security-chip {
    font-size: 0.6875rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
    line-height: 1.4;
    display: inline-block;
}

/* Lockout Alert Box */
.lockout-panel {
    background: var(--danger-bg);
    border: 1px solid var(--danger-border);
    border-radius: var(--radius-card);
    padding: 1.5rem;
    text-align: center;
}

.lockout-icon {
    color: var(--danger);
    margin-bottom: 0.75rem;
    display: flex;
    justify-content: center;
}

.lockout-panel h2 {
    font-family: var(--font-display);
    font-size: 1.125rem;
    color: var(--danger-text);
    margin-bottom: 0.5rem;
}

.lockout-panel p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.lockout-timer {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--text-primary);
    background: rgba(0, 0, 0, 0.35);
    display: inline-block;
    padding: 0.35rem 0.75rem;
    border-radius: var(--radius-chip);
    border: 1px solid var(--border-color);
}

/* Generic Alerts */
.alert {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.8125rem 1rem;
    border-radius: var(--radius-input);
    font-size: 0.875rem;
    margin-bottom: 1.25rem;
}

.alert-danger {
    background: var(--danger-bg);
    border: 1px solid var(--danger-border);
    color: var(--danger-text);
}

.alert-success {
    background: var(--success-bg);
    border: 1px solid var(--success-border);
    color: var(--success-text);
}

.alert-icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

/* =====================================================================
   5. App Header & Global Navigation
   ===================================================================== */
.dashboard-body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.app-header {
    background: var(--bg-surface-glass);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-container {
    max-width: 1560px;
    margin: 0 auto;
    padding: 0.75rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
}

.brand-group {
    display: flex;
    align-items: center;
    gap: 0.875rem;
}

.brand-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-card);
    background-color: var(--primary);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.brand-icon svg {
    width: 20px;
    height: 20px;
}

.brand-name {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.025em;
    color: var(--text-primary);
    line-height: 1.1;
}

.brand-tag {
    font-size: 0.6875rem;
    color: var(--text-muted);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    font-weight: 600;
}

.header-status-group {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.env-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-color);
    padding: 0.3rem 0.75rem;
    border-radius: var(--radius-chip);
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.chip-label {
    color: var(--text-muted);
    font-weight: 500;
}

.chip-val {
    color: var(--text-primary);
    font-size: 0.75rem;
}

.env-chip-server {
    color: var(--text-secondary);
}

.chip-icon {
    width: 14px;
    height: 14px;
    color: var(--text-muted);
}

.user-action-group {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.user-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.user-avatar {
    width: 30px;
    height: 30px;
    border-radius: var(--radius-chip);
    background: var(--bg-surface-elevated);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.75rem;
    border: 1px solid var(--border-color);
    font-family: var(--font-mono);
}

.user-name {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* =====================================================================
   6. Main Content & Asymmetric KPI Section
   ===================================================================== */
.main-content {
    max-width: 1560px;
    width: 100%;
    margin: 0 auto;
    padding: 1.75rem 1.5rem;
    flex: 1;
}

/* Asymmetric Grid: Hero health spans, secondary cards flank */
.kpi-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 1rem;
    margin-bottom: 2rem;
}

.kpi-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-card);
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: border-color var(--transition-fast), transform var(--transition-fast);
}

.kpi-card:hover {
    border-color: #334155;
    transform: translateY(-1px);
}

.kpi-card-hero {
    border-left: 3px solid var(--primary);
    background: var(--bg-surface-subtle);
}

.kpi-card-clean {
    border-left: 3px solid var(--border-color);
}

.kpi-card-danger {
    border-left: 3px solid var(--danger);
    background: var(--bg-surface-subtle);
}

.kpi-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 0.75rem;
}

.kpi-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.kpi-hero-stat {
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
    margin-top: 0.25rem;
}

.kpi-hero-unit {
    font-size: 0.875rem;
    color: var(--text-muted);
    font-weight: 600;
}

.kpi-value {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.1;
    letter-spacing: -0.03em;
}

.kpi-subval {
    font-size: 0.875rem;
    color: var(--text-muted);
    font-weight: 500;
}

.kpi-icon {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-chip);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.kpi-icon svg {
    width: 18px;
    height: 18px;
}

.icon-pass {
    background: var(--success-bg);
    color: var(--success-text);
}

.icon-fail {
    background: var(--danger-bg);
    color: var(--danger-text);
}

.icon-domains {
    background: var(--primary-subtle);
    color: #60a5fa;
}

.icon-lock {
    background: var(--warning-bg);
    color: var(--warning-text);
}

.kpi-meta {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.5rem;
}

.kpi-hero-breakdown {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    padding-top: 0.875rem;
    margin-top: 0.75rem;
    border-top: 1px solid var(--border-subtle);
}

.breakdown-col {
    display: flex;
    flex-direction: column;
}

.breakdown-label {
    font-size: 0.6875rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.breakdown-val {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-top: 0.15rem;
}

.breakdown-divider {
    width: 1px;
    height: 24px;
    background: var(--border-subtle);
}

.kpi-meta-tags {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.75rem;
    flex-wrap: wrap;
}

/* Structured technical tags (not bubbly pills) */
.tag-status {
    font-size: 0.6875rem;
    font-family: var(--font-mono);
    padding: 0.2rem 0.45rem;
    border-radius: var(--radius-chip);
    font-weight: 600;
    border: 1px solid transparent;
}

.tag-status-success {
    background: var(--success-bg);
    border-color: var(--success-border);
    color: var(--success-text);
}

.tag-status-warning {
    background: var(--warning-bg);
    border-color: var(--warning-border);
    color: var(--warning-text);
}

.tag-status-danger {
    background: var(--danger-bg);
    border-color: var(--danger-border);
    color: var(--danger-text);
}

/* =====================================================================
   7. Navigation Tabs & Search Toolbar
   ===================================================================== */
.tabs-nav-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.tabs-container {
    display: flex;
    gap: 0.25rem;
}

.tab-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    padding: 0.75rem 1rem;
    color: var(--text-secondary);
    font-family: var(--font-ui);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: color var(--transition-fast), border-color var(--transition-fast);
}

.tab-btn svg {
    width: 16px;
    height: 16px;
}

.tab-btn:hover {
    color: var(--text-primary);
}

.tab-btn.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.tab-count {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.tab-btn.active .tab-count {
    color: #60a5fa;
    font-weight: 700;
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
}

.tab-actions-bar {
    display: flex;
    align-items: center;
    padding-bottom: 0.25rem;
}

.search-box {
    position: relative;
    display: flex;
    align-items: center;
}

.search-icon {
    position: absolute;
    left: 10px;
    width: 15px;
    height: 15px;
    color: var(--text-muted);
    pointer-events: none;
}

.search-input {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-input);
    padding: 0.45rem 0.875rem 0.45rem 2rem;
    color: var(--text-primary);
    font-size: 0.8125rem;
    font-family: inherit;
    width: 230px;
    transition: width var(--transition-base), border-color var(--transition-fast);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary);
    width: 290px;
    box-shadow: 0 0 0 3px var(--primary-subtle);
}

/* =====================================================================
   8. Section Cards & Data Tables
   ===================================================================== */
.section-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-card);
    padding: 1.5rem;
}

.table-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1.25rem;
    flex-wrap: wrap;
}

.toolbar-heading-group {
    max-width: 65ch;
}

.section-title {
    font-family: var(--font-display);
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.015em;
}

.section-subtitle {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    margin-top: 0.2rem;
    line-height: 1.5;
}

.filter-toggle-group {
    display: inline-flex;
    background: var(--bg-surface-elevated);
    border-radius: var(--radius-input);
    padding: 0.2rem;
    border: 1px solid var(--border-color);
}

.filter-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 0.8125rem;
    font-weight: 600;
    padding: 0.35rem 0.75rem;
    border-radius: var(--radius-chip);
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.filter-btn:hover {
    color: var(--text-primary);
}

.filter-btn.active {
    background: var(--bg-surface);
    color: var(--text-primary);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.25);
}

.filter-count {
    font-size: 0.6875rem;
    font-family: var(--font-mono);
    padding: 0.1rem 0.4rem;
    border-radius: var(--radius-chip);
    font-weight: 700;
}

.filter-count-danger {
    background: var(--danger-bg);
    color: var(--danger-text);
    border: 1px solid var(--danger-border);
}

/* Data Table */
.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.data-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    font-size: 0.875rem;
}

.data-table th {
    background: var(--bg-surface-elevated);
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.6875rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 0.75rem 1rem;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    text-align: left;
    white-space: nowrap;
}

.data-table th:first-child {
    border-top-left-radius: var(--radius-chip);
    border-bottom-left-radius: var(--radius-chip);
}

.data-table th:last-child {
    border-top-right-radius: var(--radius-chip);
    border-bottom-right-radius: var(--radius-chip);
}

.data-table td {
    padding: 0.8125rem 1rem;
    border-bottom: 1px solid var(--border-subtle);
    vertical-align: middle;
    transition: background-color var(--transition-fast);
}

.data-table tbody tr:hover td {
    background: rgba(255, 255, 255, 0.02);
}

/* Row Highlights (Left Border Emphasis, subtle background tint) */
.row-danger td {
    background: rgba(239, 68, 68, 0.04);
}

.row-danger td:first-child {
    border-left: 3px solid var(--danger);
}

.row-danger:hover td {
    background: rgba(239, 68, 68, 0.08) !important;
}

.row-warning td {
    background: rgba(245, 158, 11, 0.03);
}

.row-warning td:first-child {
    border-left: 3px solid var(--warning);
}

.row-warning:hover td {
    background: rgba(245, 158, 11, 0.07) !important;
}

.row-success td:first-child,
.row-clean td:first-child {
    border-left: 3px solid transparent;
}

.cell-domain {
    min-width: 220px;
}

.domain-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-primary);
    font-size: 0.9375rem;
}

.cell-meta {
    font-size: 0.75rem;
    margin-top: 0.2rem;
}

.cell-number {
    font-weight: 600;
}

.tabular-val {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    color: var(--text-secondary);
}

/* Failure Count Button (Semantic, Focusable & Accessible) */
.btn-fail-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    background: var(--danger-bg);
    border: 1px solid var(--danger-border);
    color: var(--danger-text);
    padding: 0.25rem 0.55rem;
    border-radius: var(--radius-chip);
    font-size: 0.8125rem;
    font-weight: 700;
    font-family: var(--font-mono);
    cursor: pointer;
    transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.btn-fail-pill:hover {
    background: var(--danger);
    color: #ffffff;
}

.inline-warn-icon {
    width: 14px;
    height: 14px;
}

/* Progress Bar */
.cell-progress {
    min-width: 120px;
}

.progress-bar-wrap {
    width: 80px;
    height: 5px;
    background: var(--bg-surface-elevated);
    border-radius: 2px;
    overflow: hidden;
    margin-bottom: 0.25rem;
}

.progress-bar-fill {
    height: 100%;
}

.fill-success { background: var(--success); }
.fill-warn { background: var(--warning); }

.progress-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
}

/* Status Indicators (Geometric Icon + Text, No Bubble Pills) */
.status-indicator {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.75rem;
    font-weight: 600;
    white-space: nowrap;
}

.status-icon {
    width: 14px;
    height: 14px;
    flex-shrink: 0;
}

.status-indicator-success {
    color: var(--success-text);
}

.status-indicator-danger {
    color: var(--danger-text);
}

.status-indicator-warning {
    color: var(--warning-text);
}

.status-indicator-neutral {
    color: var(--text-muted);
}

/* Technical DMARC Policy Chip */
.policy-chip {
    font-size: 0.6875rem;
    font-family: var(--font-mono);
    padding: 0.15rem 0.4rem;
    border-radius: var(--radius-chip);
    font-weight: 700;
    border: 1px solid transparent;
}

.policy-reject {
    background: rgba(16, 185, 129, 0.12);
    color: #34d399;
    border-color: rgba(16, 185, 129, 0.3);
}

.policy-quarantine {
    background: rgba(37, 99, 235, 0.12);
    color: #60a5fa;
    border-color: rgba(37, 99, 235, 0.3);
}

.policy-none {
    background: rgba(245, 158, 11, 0.12);
    color: #fbbf24;
    border-color: rgba(245, 158, 11, 0.3);
}

/* Classification Badges (Forensic Modal) */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.6875rem;
    font-weight: 600;
    padding: 0.2rem 0.5rem;
    border-radius: var(--radius-chip);
    font-family: var(--font-mono);
    border: 1px solid transparent;
}

.badge-info {
    background: var(--info-bg);
    border-color: var(--info-border);
    color: var(--info-text);
}

.badge-warning {
    background: var(--warning-bg);
    border-color: var(--warning-border);
    color: var(--warning-text);
}

.badge-danger {
    background: var(--danger-bg);
    border-color: var(--danger-border);
    color: var(--danger-text);
}

.badge-neutral {
    background: var(--bg-surface-elevated);
    border-color: var(--border-color);
    color: var(--text-muted);
}

/* Actions in tables */
.action-buttons-group {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 0.25rem;
}

.summary-chip {
    font-size: 0.75rem;
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-color);
    padding: 0.25rem 0.6rem;
    border-radius: var(--radius-chip);
    color: var(--text-secondary);
    font-weight: 600;
}

/* =====================================================================
   9. Bulk Analyzer Panel
   ===================================================================== */
.import-card {
    border-left: 3px solid var(--primary);
}

.import-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.import-heading-group {
    max-width: 65ch;
}

.import-actions {
    display: flex;
    gap: 0.5rem;
}

.textarea-wrapper {
    margin-bottom: 0.5rem;
}

.bulk-textarea {
    width: 100%;
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-input);
    color: var(--text-primary);
    padding: 0.8125rem 1rem;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    line-height: 1.6;
    resize: vertical;
    transition: border-color var(--transition-fast);
}

.bulk-textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-subtle);
}

.form-footer-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 1rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.legend-group {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    font-size: 0.75rem;
    color: var(--text-muted);
    flex-wrap: wrap;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.legend-swatch {
    width: 8px;
    height: 8px;
    border-radius: 2px;
}

.swatch-danger { background: var(--danger); }
.swatch-warning { background: var(--warning); }
.swatch-success { background: var(--success); }

/* Progress bar in bulk DNS execution */
.analysis-progress-container {
    margin-top: 1.25rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-subtle);
}

.progress-info {
    display: flex;
    justify-content: space-between;
    font-size: 0.8125rem;
    margin-bottom: 0.4rem;
    color: var(--text-secondary);
}

.progress-track {
    width: 100%;
    height: 6px;
    background: var(--bg-surface-elevated);
    border-radius: 2px;
    overflow: hidden;
}

.progress-bar-indicator {
    height: 100%;
    background-color: var(--primary);
    width: 0%;
    transition: width 0.25s ease;
}

.spinner {
    width: 14px;
    height: 14px;
    border: 2px solid rgba(255, 255, 255, 0.25);
    border-top-color: #ffffff;
    border-radius: 50%;
    animation: spin 0.75s linear infinite;
    display: inline-block;
}

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

/* =====================================================================
   10. Failure Forensics Modal
   ===================================================================== */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(12, 16, 23, 0.85);
    backdrop-filter: blur(8px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    animation: fadeIn var(--transition-fast) ease-out;
}

.modal-dialog {
    width: 100%;
    max-width: 900px;
    max-height: 85vh;
    display: flex;
}

.modal-content {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-modal);
    width: 100%;
    display: flex;
    flex-direction: column;
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.55);
    overflow: hidden;
}

.modal-header {
    padding: 1.25rem 1.75rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-pretitle {
    font-size: 0.6875rem;
    color: var(--danger-text);
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.modal-title {
    font-family: var(--font-display);
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-top: 0.15rem;
    letter-spacing: -0.02em;
}

.modal-close-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    line-height: 1;
    padding: 0.35rem;
    border-radius: var(--radius-chip);
    transition: color var(--transition-fast), background-color var(--transition-fast);
}

.modal-close-btn:hover {
    color: var(--text-primary);
    background-color: var(--bg-surface-elevated);
}

.modal-body {
    padding: 1.5rem 1.75rem;
    overflow-y: auto;
}

.modal-summary-box {
    display: grid;
    grid-template-columns: auto auto 1fr;
    gap: 1.5rem;
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-card);
    padding: 1rem 1.25rem;
    align-items: center;
}

.summary-metric {
    display: flex;
    flex-direction: column;
}

.metric-label {
    font-size: 0.6875rem;
    text-transform: uppercase;
    color: var(--text-muted);
    font-weight: 700;
    letter-spacing: 0.05em;
}

.metric-val {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-top: 0.15rem;
}

.metric-desc {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    line-height: 1.45;
}

.modal-footer {
    padding: 1rem 1.75rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    background: var(--bg-surface-subtle);
}

/* =====================================================================
   11. Skeleton Loaders & Micro-Animations
   ===================================================================== */
.skeleton-wrap {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    padding: 1rem 0;
}

.skeleton-line {
    height: 14px;
    background: var(--bg-surface-elevated);
    border-radius: 3px;
    animation: shimmer 1.5s infinite ease-in-out;
}

.skeleton-shimmer {
    width: 100%;
}

@keyframes shimmer {
    0% { opacity: 0.4; }
    50% { opacity: 0.8; }
    100% { opacity: 0.4; }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeSlideIn {
    from {
        opacity: 0;
        transform: translateY(4px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.staggered-entry {
    animation: fadeSlideIn 0.25s cubic-bezier(0.16, 1, 0.3, 1) both;
}

/* Empty State */
.empty-state {
    padding: 3.5rem 1rem !important;
}

.empty-state-icon {
    color: var(--text-muted);
    margin-bottom: 0.75rem;
    display: flex;
    justify-content: center;
}

.empty-state p {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.empty-state-hint {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
    display: inline-block;
}

/* =====================================================================
   12. Responsive Breakpoints & Accessibility
   ===================================================================== */
@media (max-width: 1200px) {
    .kpi-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 860px) {
    .auth-wrapper {
        grid-template-columns: 1fr;
    }
    .auth-context-panel {
        display: none;
    }
    .header-container {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    .header-status-group {
        flex-wrap: wrap;
    }
    .kpi-grid {
        grid-template-columns: 1fr;
    }
    .modal-summary-box {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }
    .search-input {
        width: 100%;
    }
    .search-input:focus {
        width: 100%;
    }
}

/* =====================================================================
   13. Expandable Domain List & Raw DMARC XML Dropdown Drawer
   ===================================================================== */
.domain-main-row {
    transition: background-color var(--transition-fast);
}

.domain-main-row.is-expanded {
    background: rgba(37, 99, 235, 0.07) !important;
}

.domain-main-row.is-expanded td {
    border-bottom-color: transparent !important;
}

.domain-expand-trigger {
    display: flex;
    align-items: flex-start;
    gap: 0.625rem;
    cursor: pointer;
    user-select: none;
    padding: 0.25rem 0.35rem;
    margin: -0.25rem -0.35rem;
    border-radius: var(--radius-chip);
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.domain-expand-trigger:hover {
    background: rgba(255, 255, 255, 0.04);
}

.domain-expand-trigger:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

.expand-chevron-wrap {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    margin-top: 2px;
    border-radius: var(--radius-chip);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    flex-shrink: 0;
    transition: transform var(--transition-base), background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}

.domain-expand-trigger:hover .expand-chevron-wrap {
    border-color: var(--primary-border);
    color: var(--primary);
    background: var(--primary-subtle);
}

.domain-expand-trigger[aria-expanded="true"] .expand-chevron-wrap {
    transform: rotate(90deg);
    border-color: var(--primary);
    background: var(--primary);
    color: #ffffff;
    box-shadow: 0 0 10px rgba(37, 99, 235, 0.4);
}

.domain-expand-trigger:hover .domain-name {
    color: #60a5fa;
}

.domain-title-text {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
    min-width: 0;
}

.btn-xml-toggle {
    color: var(--text-muted);
    padding: 0.35rem;
    border-radius: var(--radius-chip);
    transition: all var(--transition-fast);
}

.btn-xml-toggle:hover {
    color: var(--secondary-accent);
    background: var(--secondary-subtle);
}

.btn-xml-toggle.active {
    color: var(--primary);
    background: var(--primary-subtle);
}

/* Dropdown Drawer Row */
.xml-dropdown-row {
    background-color: #0b0f17;
}

.xml-dropdown-cell {
    padding: 0 !important;
    border-bottom: 2px solid var(--border-color) !important;
}

.xml-drawer-container {
    padding: 1.25rem 1.5rem 1.5rem 1.5rem;
    background: linear-gradient(180deg, rgba(14, 20, 31, 0.98) 0%, rgba(9, 13, 20, 1) 100%);
    border-left: 3px solid var(--primary);
    box-shadow: inset 0 4px 12px rgba(0, 0, 0, 0.5);
    animation: drawerSlideDown 200ms cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes drawerSlideDown {
    from {
        opacity: 0;
        transform: translateY(-6px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.xml-drawer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    border-bottom: 1px solid var(--border-subtle);
    padding-bottom: 0.875rem;
}

.xml-drawer-title-group {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.xml-file-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 0.9375rem;
    color: var(--text-primary);
    letter-spacing: -0.01em;
}

.xml-file-badge svg {
    width: 18px;
    height: 18px;
    color: var(--secondary-accent);
    flex-shrink: 0;
}

.xml-report-meta {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    font-family: var(--font-mono);
    color: var(--text-secondary);
    flex-wrap: wrap;
}

.xml-report-meta .meta-item {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-subtle);
    padding: 0.2rem 0.5rem;
    border-radius: var(--radius-chip);
}

.xml-drawer-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.xml-select-group {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    margin-right: 0.25rem;
}

.xml-select-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 600;
}

.xml-report-select {
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: var(--radius-chip);
    padding: 0.32rem 0.65rem;
    font-size: 0.75rem;
    font-family: var(--font-mono);
    outline: none;
    cursor: pointer;
    transition: border-color var(--transition-fast);
}

.xml-report-select:focus {
    border-color: var(--primary);
}

.btn-drawer-close {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    border-radius: var(--radius-chip);
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-drawer-close svg {
    width: 16px;
    height: 16px;
}

.btn-drawer-close:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--border-color);
}

/* XML Code Display Container */
.xml-code-container {
    background: #06090e;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-card);
    padding: 1rem 1.25rem;
    max-height: 480px;
    overflow-y: auto;
    overflow-x: auto;
    position: relative;
    box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.7);
}

.xml-code-container::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

.xml-code-container::-webkit-scrollbar-track {
    background: #0a0e16;
}

.xml-code-container::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

.xml-code-container::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

.xml-code-block {
    margin: 0;
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    line-height: 1.65;
    color: #cbd5e1;
    white-space: pre;
    tab-size: 2;
}

/* XML Syntax Highlighting Tokens */
.xml-decl {
    color: #ec4899;
    font-weight: 600;
}

.xml-tag {
    color: #38bdf8;
}

.xml-attr-name {
    color: #fbbf24;
}

.xml-attr-val {
    color: #34d399;
}

.xml-text {
    color: #f1f5f9;
}

.xml-comment {
    color: #64748b;
    font-style: italic;
}

.xml-empty-state {
    padding: 2.5rem 1rem;
    text-align: center;
}

.xml-empty-state p {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* Skeleton Loading Shimmer for XML */
.xml-loading-skeleton {
    padding: 0.5rem 0;
}

/* =====================================================================
   14. Date Range Filter & Custom Date Picker Styles
   ===================================================================== */
.title-timeframe-tag {
    font-size: 0.875rem;
    color: var(--secondary-accent);
    font-weight: 600;
}

.timeframe-group {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.filter-label {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
}

.timeframe-pills {
    display: inline-flex;
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-input);
    padding: 0.2rem;
    gap: 0.15rem;
}

.timeframe-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 0.8125rem;
    font-weight: 600;
    padding: 0.35rem 0.65rem;
    border-radius: var(--radius-chip);
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.timeframe-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.04);
}

.timeframe-btn.active {
    background: var(--primary);
    color: #ffffff;
    box-shadow: 0 1px 4px rgba(37, 99, 235, 0.3);
}

/* Custom Date Container & Form */
.custom-date-container {
    margin-top: 0.75rem;
    margin-bottom: 1rem;
    animation: drawerSlideDown 150ms ease forwards;
}

.custom-date-form {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-input);
    padding: 0.5rem 0.875rem;
    flex-wrap: wrap;
}

.custom-form-label {
    font-size: 0.8125rem;
    color: var(--text-primary);
}

.date-input-wrap {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.date-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 600;
}

.date-input {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: var(--radius-chip);
    padding: 0.3rem 0.55rem;
    font-size: 0.8125rem;
    font-family: var(--font-mono);
    outline: none;
    color-scheme: dark;
    transition: border-color var(--transition-fast);
}

.date-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px var(--primary-subtle);
}

.date-sep {
    color: var(--text-muted);
    font-weight: bold;
}

.btn-apply-date {
    padding: 0.35rem 0.75rem;
    font-size: 0.8125rem;
}