/* ============================================
   TB-SMTP-RELAY ADMIN // MISSION CONTROL
   A command center for email infrastructure
   ============================================ */

/* Google Fonts Import */
@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;500;600;700;800;900&family=JetBrains+Mono:wght@300;400;500;600;700&family=Space+Grotesk:wght@300;400;500;600;700&display=swap');

/* ============================================
   CSS VARIABLES - DARK MODE (DEFAULT)
   ============================================ */
:root {
    /* Core Colors */
    --bg-void: #030308;
    --bg-deep: #0a0a12;
    --bg-surface: #0f0f1a;
    --bg-elevated: #161625;
    --bg-card: #1a1a2e;

    /* Accent Colors - Neon Palette */
    --cyan: #00ffd0;
    --cyan-glow: rgba(0, 255, 208, 0.15);
    --cyan-muted: #00c4a3;

    --magenta: #ff00aa;
    --magenta-glow: rgba(255, 0, 170, 0.15);

    --purple: #8b5cf6;
    --purple-glow: rgba(139, 92, 246, 0.15);

    /* Status Colors */
    --success: #00ff88;
    --success-glow: rgba(0, 255, 136, 0.2);

    --warning: #ffcc00;
    --warning-glow: rgba(255, 204, 0, 0.2);

    --error: #ff4466;
    --error-glow: rgba(255, 68, 102, 0.2);

    --processing: #00aaff;
    --processing-glow: rgba(0, 170, 255, 0.2);

    /* Text Colors */
    --text-primary: #e4e4f0;
    --text-secondary: #8888aa;
    --text-muted: #555566;

    /* Grid & Lines */
    --grid-line: rgba(0, 255, 208, 0.03);
    --border-subtle: rgba(255, 255, 255, 0.05);
    --border-accent: rgba(0, 255, 208, 0.2);

    /* Typography */
    --font-display: 'Orbitron', sans-serif;
    --font-body: 'Space Grotesk', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================
   CSS VARIABLES - LIGHT MODE
   ============================================ */
[data-theme="light"] {
    /* Core Colors - Light palette */
    --bg-void: #f5f5f8;
    --bg-deep: #eaeaef;
    --bg-surface: #ffffff;
    --bg-elevated: #f8f8fc;
    --bg-card: #ffffff;

    /* Accent Colors - Teal for light mode */
    --cyan: #0099aa;
    --cyan-glow: rgba(0, 153, 170, 0.1);
    --cyan-muted: #007788;

    --magenta: #cc0088;
    --magenta-glow: rgba(204, 0, 136, 0.1);

    --purple: #7c4ddb;
    --purple-glow: rgba(124, 77, 219, 0.1);

    /* Status Colors - Darker for contrast */
    --success: #00aa55;
    --success-glow: rgba(0, 170, 85, 0.15);

    --warning: #cc9900;
    --warning-glow: rgba(204, 153, 0, 0.15);

    --error: #dd3355;
    --error-glow: rgba(221, 51, 85, 0.15);

    --processing: #0088cc;
    --processing-glow: rgba(0, 136, 204, 0.15);

    /* Text Colors */
    --text-primary: #1a1a2e;
    --text-secondary: #555577;
    --text-muted: #8888aa;

    /* Grid & Lines */
    --grid-line: rgba(0, 153, 170, 0.05);
    --border-subtle: rgba(0, 0, 0, 0.08);
    --border-accent: rgba(0, 153, 170, 0.3);
}

/* ============================================
   GLOBAL RESET & BASE STYLES
   ============================================ */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background: var(--bg-void);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Animated grid background */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background:
        linear-gradient(var(--grid-line) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
    z-index: -2;
}

/* Subtle radial gradient overlay */
body::after {
    content: '';
    position: fixed;
    inset: 0;
    background: radial-gradient(ellipse at 50% 0%, rgba(0, 255, 208, 0.03) 0%, transparent 60%);
    pointer-events: none;
    z-index: -1;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

h1 {
    font-size: 1.75rem;
    background: linear-gradient(135deg, var(--cyan) 0%, var(--text-primary) 50%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

h2 {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
}

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

a:hover {
    color: var(--text-primary);
    text-shadow: 0 0 20px var(--cyan);
}

/* ============================================
   LAYOUT
   ============================================ */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--space-xl);
}

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
    background: linear-gradient(180deg, var(--bg-surface) 0%, var(--bg-deep) 100%);
    border-bottom: 1px solid var(--border-accent);
    padding: 0 var(--space-xl);
    display: flex;
    align-items: center;
    height: 70px;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}

.navbar::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--cyan), transparent);
    opacity: 0.5;
}

.nav-brand {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.1rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--cyan);
    margin-right: var(--space-2xl);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.nav-brand::before {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--cyan);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--cyan), 0 0 20px var(--cyan);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(0.9); }
}

.nav-links {
    display: flex;
    gap: var(--space-xs);
    flex-grow: 1;
}

.nav-links a {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--text-secondary);
    padding: var(--space-sm) var(--space-md);
    border-radius: 4px;
    border: 1px solid transparent;
    transition: var(--transition-base);
    position: relative;
}

.nav-links a:hover {
    color: var(--cyan);
    background: var(--cyan-glow);
    border-color: var(--border-accent);
    text-shadow: 0 0 10px var(--cyan);
}

.nav-links a.active {
    color: var(--cyan);
    background: var(--cyan-glow);
    border-color: var(--cyan);
}

.nav-user {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
}

.nav-user span {
    padding: var(--space-xs) var(--space-sm);
    background: var(--bg-elevated);
    border-radius: 4px;
    border: 1px solid var(--border-subtle);
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: var(--space-sm) var(--space-md);
    border: 1px solid var(--border-subtle);
    border-radius: 4px;
    background: var(--bg-elevated);
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition-base);
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    text-decoration: none;
}

.btn:hover {
    background: var(--bg-card);
    color: var(--text-primary);
    border-color: var(--text-muted);
    transform: translateY(-1px);
}

.btn-primary {
    background: linear-gradient(135deg, var(--cyan-muted) 0%, var(--cyan) 100%);
    border-color: var(--cyan);
    color: var(--bg-void);
    box-shadow: 0 0 20px var(--cyan-glow);
}

.btn-primary:hover {
    background: var(--cyan);
    color: var(--bg-void);
    box-shadow: 0 0 30px var(--cyan-glow), 0 0 60px var(--cyan-glow);
    transform: translateY(-2px);
}

.btn-danger {
    background: linear-gradient(135deg, #cc3355 0%, var(--error) 100%);
    border-color: var(--error);
    color: white;
    box-shadow: 0 0 20px var(--error-glow);
}

.btn-danger:hover {
    background: var(--error);
    box-shadow: 0 0 30px var(--error-glow), 0 0 60px var(--error-glow);
    transform: translateY(-2px);
}

.btn-warning {
    background: linear-gradient(135deg, #cc9900 0%, var(--warning) 100%);
    border-color: var(--warning);
    color: var(--bg-void);
    box-shadow: 0 0 20px var(--warning-glow);
}

.btn-warning:hover {
    background: var(--warning);
    color: var(--bg-void);
    box-shadow: 0 0 30px var(--warning-glow), 0 0 60px var(--warning-glow);
    transform: translateY(-2px);
}

.btn-sm {
    padding: var(--space-xs) var(--space-sm);
    font-size: 0.65rem;
}

.btn-block {
    width: 100%;
    justify-content: center;
}

.inline {
    display: inline;
}

/* ============================================
   FORMS
   ============================================ */
.form-group {
    margin-bottom: var(--space-lg);
}

.form-group label {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
}

.form-group input {
    width: 100%;
    padding: var(--space-md);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    background: var(--bg-deep);
    border: 1px solid var(--border-subtle);
    border-radius: 4px;
    color: var(--text-primary);
    transition: var(--transition-base);
}

.form-group input:focus {
    outline: none;
    border-color: var(--cyan);
    box-shadow: 0 0 0 3px var(--cyan-glow), 0 0 30px var(--cyan-glow);
}

.form-group input::placeholder {
    color: var(--text-muted);
}

.form-inline {
    display: flex;
    gap: var(--space-md);
    align-items: flex-end;
}

.form-inline .form-group {
    margin-bottom: 0;
    flex: 1;
}

/* ============================================
   LOGIN PAGE
   ============================================ */
.login-page {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: var(--bg-void);
    position: relative;
    overflow: hidden;
}

.login-page::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        linear-gradient(var(--grid-line) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
    background-size: 40px 40px;
    animation: grid-move 20s linear infinite;
}

@keyframes grid-move {
    0% { transform: translate(0, 0); }
    100% { transform: translate(40px, 40px); }
}

.login-page::after {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--cyan-glow) 0%, transparent 70%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: login-glow 4s ease-in-out infinite alternate;
}

@keyframes login-glow {
    0% { opacity: 0.3; transform: translate(-50%, -50%) scale(1); }
    100% { opacity: 0.6; transform: translate(-50%, -50%) scale(1.1); }
}

.login-container {
    position: relative;
    z-index: 1;
    background: linear-gradient(135deg, var(--bg-surface) 0%, var(--bg-elevated) 100%);
    border: 1px solid var(--border-accent);
    border-radius: 8px;
    padding: var(--space-2xl);
    width: 100%;
    max-width: 400px;
    box-shadow:
        0 0 60px var(--cyan-glow),
        inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.login-container::before {
    content: '';
    position: absolute;
    top: -1px;
    left: 20%;
    right: 20%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--cyan), transparent);
}

.login-container h1 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    text-align: center;
    margin-bottom: var(--space-2xl);
    letter-spacing: 0.2em;
}

/* ============================================
   ALERTS
   ============================================ */
.alert {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    padding: var(--space-md);
    border-radius: 4px;
    margin-bottom: var(--space-lg);
    border-left: 3px solid;
}

.alert-error {
    background: var(--error-glow);
    border-color: var(--error);
    color: var(--error);
}

.alert-success {
    background: var(--success-glow);
    border-color: var(--success);
    color: var(--success);
}

/* ============================================
   STATS GRID - DASHBOARD
   ============================================ */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-2xl);
}

.stat-card {
    background: linear-gradient(135deg, var(--bg-surface) 0%, var(--bg-card) 100%);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    padding: var(--space-lg);
    position: relative;
    overflow: hidden;
    transition: var(--transition-base);
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--cyan), transparent);
    opacity: 0;
    transition: var(--transition-base);
}

.stat-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-accent);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3), 0 0 40px var(--cyan-glow);
}

.stat-card:hover::before {
    opacity: 1;
}

.stat-value {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
    margin-bottom: var(--space-xs);
}

.stat-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: var(--space-md);
}

.stat-link {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--cyan);
    opacity: 0.7;
    transition: var(--transition-fast);
}

.stat-link:hover {
    opacity: 1;
}

/* Stat card variations */
.stat-success .stat-value {
    color: var(--success);
    text-shadow: 0 0 30px var(--success-glow);
}
.stat-success::before { background: linear-gradient(90deg, transparent, var(--success), transparent); }

.stat-error .stat-value {
    color: var(--error);
    text-shadow: 0 0 30px var(--error-glow);
}
.stat-error::before { background: linear-gradient(90deg, transparent, var(--error), transparent); }

.stat-warning .stat-value {
    color: var(--warning);
    text-shadow: 0 0 30px var(--warning-glow);
}
.stat-warning::before { background: linear-gradient(90deg, transparent, var(--warning), transparent); }

.stat-processing .stat-value {
    color: var(--processing);
    text-shadow: 0 0 30px var(--processing-glow);
}
.stat-processing::before { background: linear-gradient(90deg, transparent, var(--processing), transparent); }

.stat-spam .stat-value {
    color: var(--magenta);
    text-shadow: 0 0 30px var(--magenta-glow);
}
.stat-spam::before { background: linear-gradient(90deg, transparent, var(--magenta), transparent); }

/* ============================================
   DATA TABLES
   ============================================ */
.data-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    overflow: hidden;
}

.data-table th,
.data-table td {
    padding: var(--space-md) var(--space-lg);
    text-align: left;
    border-bottom: 1px solid var(--border-subtle);
}

.data-table th {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    background: var(--bg-deep);
    color: var(--text-secondary);
}

.data-table td {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-primary);
    transition: var(--transition-fast);
}

.data-table tbody tr {
    transition: var(--transition-fast);
}

.data-table tbody tr:hover {
    background: var(--cyan-glow);
}

.data-table tbody tr:hover td {
    color: var(--text-primary);
}

.data-table tbody tr:last-child td {
    border-bottom: none;
}

.data-table .actions {
    white-space: nowrap;
    display: flex;
    gap: var(--space-xs);
}

.data-table .actions form {
    display: inline;
}

.table-subtext {
    margin-top: var(--space-xs);
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--text-muted);
}

/* ============================================
   STATUS BADGES
   ============================================ */
.status {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-sm);
    border-radius: 20px;
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    border: 1px solid;
}

.status::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    animation: status-pulse 2s ease-in-out infinite;
}

@keyframes status-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.status-queued {
    background: var(--warning-glow);
    border-color: var(--warning);
    color: var(--warning);
}
.status-queued::before { background: var(--warning); }

.status-processing {
    background: var(--processing-glow);
    border-color: var(--processing);
    color: var(--processing);
}
.status-processing::before {
    background: var(--processing);
    animation: status-spin 1s linear infinite;
}

@keyframes status-spin {
    0% { transform: scale(1); }
    50% { transform: scale(0.5); }
    100% { transform: scale(1); }
}

.status-sent {
    background: var(--success-glow);
    border-color: var(--success);
    color: var(--success);
}
.status-sent::before { background: var(--success); animation: none; opacity: 1; }

.status-failed {
    background: var(--error-glow);
    border-color: var(--error);
    color: var(--error);
}
.status-failed::before { background: var(--error); }

.status-spam {
    background: var(--magenta-glow);
    border-color: var(--magenta);
    color: var(--magenta);
}
.status-spam::before { background: var(--magenta); }

/* ============================================
   PAGE HEADER
   ============================================ */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--border-subtle);
}

.page-header h1 {
    margin: 0;
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

/* ============================================
   FILTER TABS
   ============================================ */
.filter-tabs {
    display: flex;
    gap: var(--space-xs);
    background: var(--bg-deep);
    padding: var(--space-xs);
    border-radius: 6px;
    border: 1px solid var(--border-subtle);
}

.tab {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: var(--space-sm) var(--space-md);
    color: var(--text-muted);
    border-radius: 4px;
    transition: var(--transition-fast);
    border: 1px solid transparent;
}

.tab:hover {
    color: var(--text-secondary);
    background: var(--bg-elevated);
}

.tab.active {
    color: var(--cyan);
    background: var(--cyan-glow);
    border-color: var(--border-accent);
}

.email-filters {
    display: grid;
    grid-template-columns: minmax(260px, 1fr) minmax(220px, 320px) auto;
    gap: var(--space-md);
    align-items: end;
    margin-bottom: var(--space-xl);
    padding: var(--space-lg);
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
}

.filter-field {
    display: grid;
    gap: var(--space-xs);
}

.filter-field label {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-secondary);
}

.filter-actions {
    display: flex;
    gap: var(--space-sm);
    align-items: center;
}

/* ============================================
   AUTOCOMPLETE
   ============================================ */
.autocomplete {
    position: relative;
}

.autocomplete-menu {
    position: absolute;
    top: calc(100% + var(--space-xs));
    left: 0;
    right: 0;
    z-index: 50;
    margin: 0;
    padding: var(--space-xs);
    list-style: none;
    max-height: 280px;
    overflow-y: auto;
    background: var(--bg-elevated);
    border: 1px solid var(--border-accent);
    border-radius: 6px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5), 0 0 0 1px var(--cyan-glow);
    animation: autocomplete-in var(--transition-fast);
}

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

.autocomplete-option {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    color: var(--text-primary);
    cursor: pointer;
    transition: background var(--transition-fast), color var(--transition-fast);
}

.autocomplete-option.active {
    background: var(--cyan-glow);
    color: var(--cyan);
}

.autocomplete-icon {
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.4rem;
    height: 1.4rem;
    border-radius: 4px;
    background: var(--bg-deep);
    color: var(--text-muted);
    font-size: 0.75rem;
    transition: color var(--transition-fast);
}

.autocomplete-option.active .autocomplete-icon {
    color: var(--cyan);
}

.autocomplete-label {
    flex: 1 1 auto;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.autocomplete-label mark {
    background: transparent;
    color: var(--cyan);
    font-weight: 700;
}

/* ============================================
   CARDS
   ============================================ */
.card {
    background: linear-gradient(135deg, var(--bg-surface) 0%, var(--bg-card) 100%);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    padding: var(--space-lg);
    margin-bottom: var(--space-lg);
}

.card h2 {
    font-size: 0.9rem;
}

/* ============================================
   ANALYTICS
   ============================================ */
.range-presets {
    display: flex;
    gap: var(--space-xs);
}

.chart-card .chart-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-md);
}

.chart-card h2 {
    margin: 0;
}

.chart-legend {
    display: flex;
    gap: var(--space-md);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.legend-swatch {
    width: 12px;
    height: 12px;
    border-radius: 2px;
    display: inline-block;
}

.swatch-sent { background: var(--success); }
.swatch-spam { background: var(--magenta); }
.swatch-failed { background: var(--error); }

.chart-svg {
    width: 100%;
    height: auto;
    display: block;
    overflow: visible;
}

.chart-axis-label {
    fill: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 11px;
}

.data-table .rank {
    font-family: var(--font-mono);
    color: var(--text-muted);
    width: 2rem;
}

.detail-card {
    background: linear-gradient(135deg, var(--bg-surface) 0%, var(--bg-card) 100%);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    padding: var(--space-lg);
    margin-bottom: var(--space-lg);
}

.detail-row {
    display: flex;
    padding: var(--space-md) 0;
    border-bottom: 1px solid var(--border-subtle);
    align-items: flex-start;
}

.detail-row:last-child {
    border-bottom: none;
}

.detail-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-muted);
    width: 140px;
    flex-shrink: 0;
}

.detail-value {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-primary);
    word-break: break-all;
}

.error-text {
    color: var(--error);
    background: var(--error-glow);
    padding: var(--space-sm) var(--space-md);
    border-radius: 4px;
    border-left: 3px solid var(--error);
}

.detail-card h3 {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
}

.velozes-card {
    border-color: var(--cyan-dim);
}

.override-card {
    border-color: var(--warning);
}

.override-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-md);
}

.override-meta {
    margin-top: var(--space-md);
}

/* ============================================
   ACTIONS SECTION
   ============================================ */
.actions-section {
    background: linear-gradient(135deg, var(--bg-surface) 0%, var(--bg-card) 100%);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    padding: var(--space-lg);
}

.actions-section h2 {
    margin-bottom: var(--space-lg);
}

.action-buttons {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

/* ============================================
   EMPTY STATE
   ============================================ */
.empty-state {
    text-align: center;
    padding: var(--space-2xl) var(--space-xl);
    color: var(--text-muted);
    background: var(--bg-surface);
    border: 1px dashed var(--border-subtle);
    border-radius: 8px;
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

/* ============================================
   PAGINATION
   ============================================ */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-lg);
    margin-top: var(--space-xl);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ============================================
   LOG VIEWER
   ============================================ */
.log-controls {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.status-badge {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: var(--space-xs) var(--space-sm);
    border-radius: 20px;
    border: 1px solid;
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
}

.status-badge::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
}

.status-connecting {
    background: var(--warning-glow);
    border-color: var(--warning);
    color: var(--warning);
}
.status-connecting::before {
    background: var(--warning);
    animation: status-pulse 1s ease-in-out infinite;
}

.status-connected {
    background: var(--success-glow);
    border-color: var(--success);
    color: var(--success);
}
.status-connected::before { background: var(--success); }

.status-disconnected {
    background: var(--error-glow);
    border-color: var(--error);
    color: var(--error);
}
.status-disconnected::before { background: var(--error); }

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    cursor: pointer;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.checkbox-label input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--cyan);
}

.log-container {
    background: var(--bg-void);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    padding: var(--space-md);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    max-height: 70vh;
    overflow-y: auto;
    position: relative;
}

/* Custom scrollbar */
.log-container::-webkit-scrollbar {
    width: 8px;
}

.log-container::-webkit-scrollbar-track {
    background: var(--bg-deep);
}

.log-container::-webkit-scrollbar-thumb {
    background: var(--border-accent);
    border-radius: 4px;
}

.log-container::-webkit-scrollbar-thumb:hover {
    background: var(--cyan);
}

.log-entry {
    padding: var(--space-sm) var(--space-md);
    border-radius: 4px;
    margin-bottom: 2px;
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    border-left: 3px solid transparent;
    transition: var(--transition-fast);
}

.log-entry:hover {
    background: rgba(255, 255, 255, 0.02);
}

.log-entry.log-ERROR {
    background: rgba(255, 68, 102, 0.08);
    border-left-color: var(--error);
}

.log-entry.log-WARN {
    background: rgba(255, 204, 0, 0.08);
    border-left-color: var(--warning);
}

.log-entry.log-INFO {
    border-left-color: var(--success);
}

.log-entry.log-DEBUG {
    border-left-color: var(--processing);
    opacity: 0.7;
}

.log-time {
    color: var(--text-muted);
    flex-shrink: 0;
}

.log-level {
    font-weight: 700;
    min-width: 50px;
    flex-shrink: 0;
}

.log-ERROR .log-level { color: var(--error); }
.log-WARN .log-level { color: var(--warning); }
.log-INFO .log-level { color: var(--success); }
.log-DEBUG .log-level { color: var(--processing); }

.log-message {
    color: var(--text-primary);
    flex: 1;
}

.log-attrs {
    color: var(--text-muted);
    font-size: 0.7rem;
    width: 100%;
    padding-left: calc(50px + var(--space-md) + 80px);
}

.log-attr {
    margin-right: var(--space-md);
    display: inline-block;
}

.log-attr::before {
    content: '';
    display: inline-block;
    width: 4px;
    height: 4px;
    background: var(--text-muted);
    border-radius: 50%;
    margin-right: var(--space-xs);
    vertical-align: middle;
}

.log-entry.log-new {
    animation: log-highlight 2s ease-out;
}

@keyframes log-highlight {
    0% {
        background-color: var(--cyan-glow);
        border-left-color: var(--cyan);
    }
    100% { background-color: transparent; }
}

/* ============================================
   EMAIL PREVIEW
   ============================================ */
.email-preview-section {
    background: linear-gradient(135deg, var(--bg-surface) 0%, var(--bg-card) 100%);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    padding: var(--space-lg);
    margin-top: var(--space-lg);
}

.email-preview-section h2 {
    font-size: 0.9rem;
    margin-bottom: var(--space-lg);
}

.preview-container {
    border: 1px solid var(--border-subtle);
    border-radius: 4px;
    overflow: hidden;
    background: white;
}

.email-preview-iframe {
    width: 100%;
    height: 500px;
    border: none;
    background: white;
}

.email-preview-text {
    padding: var(--space-lg);
    background: var(--bg-deep);
    white-space: pre-wrap;
    word-wrap: break-word;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-primary);
    margin: 0;
    max-height: 500px;
    overflow-y: auto;
}

/* ============================================
   RAW MESSAGE
   ============================================ */
.raw-message-section {
    background: linear-gradient(135deg, var(--bg-surface) 0%, var(--bg-card) 100%);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    padding: var(--space-lg);
    margin-top: var(--space-lg);
}

.raw-message-section h2 {
    margin: 0;
    display: flex;
    align-items: center;
}

.toggle-btn {
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    transition: var(--transition-fast);
}

.toggle-btn:hover {
    color: var(--cyan);
}

.toggle-btn::after {
    content: '+';
    font-family: var(--font-mono);
    font-size: 1.2rem;
    font-weight: 400;
}

.toggle-btn.active::after {
    content: '-';
}

.raw-message {
    background: var(--bg-void);
    border: 1px solid var(--border-subtle);
    color: var(--text-primary);
    padding: var(--space-lg);
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    white-space: pre-wrap;
    word-wrap: break-word;
    max-height: 400px;
    overflow-y: auto;
    margin-top: var(--space-lg);
    line-height: 1.8;
}

.raw-message-tabs {
    display: flex;
    gap: var(--space-xs);
    margin-top: var(--space-md);
    margin-bottom: var(--space-sm);
}

.tab-btn {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    padding: var(--space-sm) var(--space-md);
    background: var(--bg-deep);
    border: 1px solid var(--border-subtle);
    border-radius: 4px;
    color: var(--text-muted);
    cursor: pointer;
    transition: var(--transition-fast);
}

.tab-btn:hover {
    color: var(--text-secondary);
    border-color: var(--text-muted);
}

.tab-btn.active {
    background: var(--cyan-glow);
    border-color: var(--cyan);
    color: var(--cyan);
}

/* ============================================
   SCAN LINE EFFECT (OPTIONAL CRT AESTHETIC)
   ============================================ */
@keyframes scanline {
    0% { transform: translateY(-100%); }
    100% { transform: translateY(100vh); }
}

body.crt-effect::before {
    content: '';
    position: fixed;
    inset: 0;
    background: repeating-linear-gradient(
        0deg,
        rgba(0, 0, 0, 0.1) 0px,
        rgba(0, 0, 0, 0.1) 1px,
        transparent 1px,
        transparent 2px
    );
    pointer-events: none;
    z-index: 9999;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1024px) {
    .container {
        padding: var(--space-lg);
    }

    .stats-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    }

    .stat-value {
        font-size: 2rem;
    }
}

@media (max-width: 768px) {
    .navbar {
        flex-wrap: wrap;
        height: auto;
        padding: var(--space-md);
    }

    .nav-brand {
        margin-right: auto;
    }

    .nav-links {
        order: 3;
        width: 100%;
        justify-content: center;
        padding-top: var(--space-md);
        border-top: 1px solid var(--border-subtle);
        margin-top: var(--space-md);
    }

    .page-header {
        flex-direction: column;
        gap: var(--space-md);
        align-items: flex-start;
    }

    .filter-tabs {
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
    }

    .email-filters {
        grid-template-columns: 1fr;
    }

    .filter-actions {
        justify-content: flex-start;
    }

    .data-table {
        font-size: 0.75rem;
    }

    .data-table th,
    .data-table td {
        padding: var(--space-sm);
    }

    .form-inline {
        flex-direction: column;
    }

    .override-grid {
        grid-template-columns: 1fr;
    }

    .action-buttons {
        flex-direction: column;
    }

    .action-buttons .btn {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: var(--space-md);
    }

    h1 {
        font-size: 1.25rem;
    }

    .stat-value {
        font-size: 1.75rem;
    }

    .login-container {
        margin: var(--space-md);
        padding: var(--space-xl);
    }
}

/* ============================================
   THEME TOGGLE
   ============================================ */
.theme-toggle {
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: 20px;
    padding: var(--space-xs);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0;
    transition: var(--transition-base);
    position: relative;
    width: 60px;
    height: 28px;
}

.theme-toggle:hover {
    border-color: var(--border-accent);
}

.theme-toggle-icon {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    z-index: 1;
    transition: var(--transition-base);
}

.theme-toggle-slider {
    position: absolute;
    left: 3px;
    width: 22px;
    height: 22px;
    background: var(--cyan);
    border-radius: 50%;
    transition: var(--transition-base);
    box-shadow: 0 0 10px var(--cyan-glow);
}

[data-theme="light"] .theme-toggle-slider {
    left: calc(100% - 25px);
}

.theme-toggle .icon-dark {
    opacity: 1;
}

.theme-toggle .icon-light {
    opacity: 0.4;
}

[data-theme="light"] .theme-toggle .icon-dark {
    opacity: 0.4;
}

[data-theme="light"] .theme-toggle .icon-light {
    opacity: 1;
}

/* Light mode body background adjustments */
[data-theme="light"] body::before {
    background:
        linear-gradient(var(--grid-line) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
}

[data-theme="light"] body::after {
    background: radial-gradient(ellipse at 50% 0%, rgba(0, 153, 170, 0.05) 0%, transparent 60%);
}

/* Light mode login page */
[data-theme="light"] .login-page {
    background: var(--bg-void);
}

[data-theme="light"] .login-page::before {
    background:
        linear-gradient(var(--grid-line) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
    background-size: 40px 40px;
}

[data-theme="light"] .login-page::after {
    background: radial-gradient(circle, var(--cyan-glow) 0%, transparent 70%);
}

[data-theme="light"] .login-container {
    background: linear-gradient(135deg, var(--bg-surface) 0%, var(--bg-elevated) 100%);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1), 0 0 60px var(--cyan-glow);
}

/* Light mode navbar */
[data-theme="light"] .navbar {
    background: linear-gradient(180deg, var(--bg-surface) 0%, var(--bg-elevated) 100%);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

/* Light mode cards */
[data-theme="light"] .stat-card,
[data-theme="light"] .card,
[data-theme="light"] .detail-card,
[data-theme="light"] .actions-section,
[data-theme="light"] .email-preview-section,
[data-theme="light"] .raw-message-section {
    background: var(--bg-surface);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

[data-theme="light"] .stat-card:hover {
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1), 0 0 30px var(--cyan-glow);
}

/* Light mode table */
[data-theme="light"] .data-table {
    background: var(--bg-surface);
}

[data-theme="light"] .data-table th {
    background: var(--bg-elevated);
}

[data-theme="light"] .data-table tbody tr:hover {
    background: var(--cyan-glow);
}

/* Light mode log viewer */
[data-theme="light"] .log-container {
    background: var(--bg-elevated);
}

[data-theme="light"] .log-entry:hover {
    background: rgba(0, 0, 0, 0.02);
}

[data-theme="light"] .raw-message {
    background: var(--bg-elevated);
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.mt-0 { margin-top: 0; }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }

.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }

.text-center { text-align: center; }
.text-mono { font-family: var(--font-mono); }

.hidden { display: none !important; }
.visible { display: block !important; }

/* ============================================
   CLASSIFICATION BADGES
   ============================================ */
.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-sm);
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    border: 1px solid;
}

.badge-spam {
    background: var(--error-glow);
    border-color: var(--error);
    color: var(--error);
}

.badge-safe {
    background: var(--success-glow);
    border-color: var(--success);
    color: var(--success);
}

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

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

/* Tags for red flags */
.tag {
    display: inline-block;
    padding: var(--space-xs) var(--space-sm);
    margin: 2px;
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
}

.tag-warning {
    background: var(--warning-glow);
    border-color: var(--warning);
    color: var(--warning);
}

/* Classification card */
.classification-card h3 {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
}

.muted {
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

/* Settings page */
.settings-form {
    width: 100%;
}

.form-control {
    width: 100%;
    padding: var(--space-md);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    background: var(--bg-deep);
    border: 1px solid var(--border-subtle);
    border-radius: 4px;
    color: var(--text-primary);
    transition: var(--transition-base);
}

.form-control:focus {
    outline: none;
    border-color: var(--cyan);
    box-shadow: 0 0 0 3px var(--cyan-glow), 0 0 30px var(--cyan-glow);
}

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%238888aa' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
    cursor: pointer;
}

textarea.form-control {
    min-height: 200px;
    resize: vertical;
    line-height: 1.6;
}

.form-text {
    display: block;
    margin-top: var(--space-xs);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-muted);
}

.form-actions {
    display: flex;
    gap: var(--space-md);
    margin-top: var(--space-lg);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--border-subtle);
}