/* ============================================
   Ferti-Gains — Modern Agritech Theme
   Global CSS Variables, Resets & Base Styles
   ============================================ */

/* --- Google Font --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

/* ============================================
   CSS VARIABLES — Light (default)
   ============================================ */
:root {
    /* Primary palette */
    --color-primary: #2E7D32;
    --color-primary-light: #4CAF50;
    --color-primary-dark: #1B5E20;

    /* Backgrounds */
    --color-bg: #FFFFFF;
    --color-bg-secondary: #F5F7F5;
    --color-surface: #FFFFFF;

    /* Text */
    --color-text: #212121;
    --color-text-secondary: #616161;
    --color-text-muted: #9E9E9E;

    /* Borders & Misc */
    --color-border: #E0E0E0;
    --color-error: #D32F2F;
    --color-success: #388E3C;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.10);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);

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

    /* Border radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
}

/* ============================================
   CSS VARIABLES — Dark Mode
   ============================================ */
[data-theme="dark"] {
    --color-primary: #66BB6A;
    --color-primary-light: #81C784;
    --color-primary-dark: #43A047;

    --color-bg: #1A1A2E;
    --color-bg-secondary: #16213E;
    --color-surface: #202040;

    --color-text: #E0E0E0;
    --color-text-secondary: #B0B0B0;
    --color-text-muted: #757575;

    --color-border: #3A3A5C;
    --color-error: #EF5350;
    --color-success: #66BB6A;

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.30);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.35);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.40);
}

/* ============================================
   CSS RESET
   ============================================ */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    transition: background-color var(--transition-base), color var(--transition-base);
    min-height: 100vh;
}

img {
    max-width: 100%;
    display: block;
}

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

a:hover {
    color: var(--color-primary-light);
}

ul,
ol {
    list-style: none;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    line-height: 1.3;
    color: var(--color-text);
}

h1 {
    font-size: 2rem;
}

h2 {
    font-size: 1.625rem;
}

h3 {
    font-size: 1.25rem;
}

h4 {
    font-size: 1.1rem;
}

p {
    margin-bottom: var(--space-md);
    color: var(--color-text-secondary);
}

/* ============================================
   FORM ELEMENTS
   ============================================ */
label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xs);
}

input[type="text"],
input[type="password"],
input[type="email"],
input[type="number"],
textarea,
select {
    width: 100%;
    padding: 0.75rem 1rem;
    font-family: inherit;
    font-size: 1rem;
    color: var(--color-text);
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    outline: none;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

input:focus,
textarea:focus,
select:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(46, 125, 50, 0.15);
}

[data-theme="dark"] input:focus,
[data-theme="dark"] textarea:focus,
[data-theme="dark"] select:focus {
    box-shadow: 0 0 0 3px rgba(102, 187, 106, 0.20);
}

button,
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 0.75rem 1.5rem;
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 600;
    color: #FFFFFF;
    background-color: var(--color-primary);
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

button:hover,
.btn:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

button:active,
.btn:active {
    transform: translateY(0);
}

/* ============================================
   LAYOUT UTILITIES
   ============================================ */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--space-lg) var(--space-md);
}

/* ============================================
   TOP NAVIGATION BAR
   ============================================ */
.navbar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) var(--space-lg);
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
    transition: background-color var(--transition-base), border-color var(--transition-base);
    gap: var(--space-md);
}

.has-sidebar .navbar {
    margin-left: 250px; /* Offset for sidebar on desktop */
}

.navbar__brand {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: -0.02em;
}

.navbar__actions {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.navbar__toggle {
    background: var(--color-bg-secondary);
    color: var(--color-text);
    border: 1px solid var(--color-border);
    padding: 0.5rem 0.9rem;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    cursor: pointer;
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.navbar__toggle:hover {
    background: var(--color-primary);
    color: #FFFFFF;
    transform: none;
    box-shadow: none;
}

.navbar__link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

.navbar__link:hover {
    color: var(--color-primary);
}

/* --- IoT Status Bar --- */
.status-bar {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: 0.3rem 0.8rem;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.status-bar__item {
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
}

.status-icon {
    display: none;
    margin-right: 4px;
}

.status-bar__label {
    font-weight: 600;
    color: var(--color-text);
}

.status-bar__pump {
    padding: 0.15rem 0.5rem;
    border-radius: 9999px;
    font-weight: 600;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.status-bar__pump--pumping {
    background: rgba(46, 125, 50, 0.12);
    color: #2E7D32;
}

.status-bar__pump--idle {
    background: rgba(158, 158, 158, 0.12);
    color: #757575;
}

[data-theme="dark"] .status-bar__pump--pumping {
    background: rgba(102, 187, 106, 0.15);
    color: #66BB6A;
}

[data-theme="dark"] .status-bar__pump--idle {
    background: rgba(189, 189, 189, 0.12);
    color: #BDBDBD;
}

/* --- Mobile Header Layout (max-width: 768px) --- */
@media (max-width: 768px) {
    .navbar__left {
        order: 1;
    }

    .navbar__actions {
        order: 2;
    }

    .status-bar {
        order: 3;
        width: 100%;
        justify-content: center;
    }

    .status-bar__label {
        display: none;
    }

    .status-icon {
        display: inline-block;
    }
}

/* ============================================
   LOGIN CARD
   ============================================ */
.login-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - 64px);
    padding: var(--space-lg);
}

.login-card {
    width: 100%;
    max-width: 420px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-2xl) var(--space-xl);
    box-shadow: var(--shadow-md);
    transition: background-color var(--transition-base), border-color var(--transition-base);
}

.login-card h1 {
    text-align: center;
    margin-bottom: var(--space-xs);
    font-size: 1.5rem;
}

.login-card .subtitle {
    text-align: center;
    color: var(--color-text-muted);
    font-size: 0.9rem;
    margin-bottom: var(--space-xl);
}

.form-group {
    margin-bottom: var(--space-lg);
}

.form-error {
    background-color: rgba(211, 47, 47, 0.08);
    color: var(--color-error);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    margin-bottom: var(--space-lg);
    border: 1px solid rgba(211, 47, 47, 0.2);
}

.login-card button[type="submit"] {
    width: 100%;
    padding: 0.85rem;
    font-size: 1rem;
}

/* ============================================
   DASHBOARD SKELETON
   ============================================ */
.dashboard-header {
    margin-bottom: var(--space-xl);
}

.dashboard-header h1 {
    font-size: 1.75rem;
    margin-bottom: var(--space-xs);
}

.dashboard-header .badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: 9999px;
    background: rgba(46, 125, 50, 0.1);
    color: var(--color-primary);
}

[data-theme="dark"] .dashboard-header .badge {
    background: rgba(102, 187, 106, 0.15);
}

.status-card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-xl);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-base), box-shadow var(--transition-base), background-color var(--transition-base), border-color var(--transition-base);
}

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

[data-theme="dark"] .status-card,
[data-theme="dark"] .sensor-card,
[data-theme="dark"] .recommendation-card,
[data-theme="dark"] .override-card {
    background-color: rgba(32, 32, 64, 0.7) !important;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-color: rgba(255, 255, 255, 0.1);
}

/* ============================================
   SECTIONS
   ============================================ */
.section {
    margin-bottom: var(--space-2xl);
}

.section__title {
    font-size: 1.35rem;
    margin-bottom: var(--space-xs);
}

.section__subtitle {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-lg);
}

/* ============================================
   ALERT BANNERS
   ============================================ */
.alert {
    padding: var(--space-md);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: var(--space-xl);
}

.alert--success {
    background-color: rgba(56, 142, 60, 0.1);
    color: var(--color-success);
    border: 1px solid rgba(56, 142, 60, 0.25);
}

[data-theme="dark"] .alert--success {
    background-color: rgba(102, 187, 106, 0.1);
    border-color: rgba(102, 187, 106, 0.25);
}

/* ============================================
   SENSOR GRID
   ============================================ */
.sensor-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--space-lg);
}

/* ============================================
   SENSOR CARD
   ============================================ */
.sensor-card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-xl) var(--space-lg);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-fast),
        box-shadow var(--transition-fast),
        background-color var(--transition-base),
        border-color var(--transition-base);
}

.sensor-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.sensor-card__icon {
    font-size: 2rem;
    margin-bottom: var(--space-sm);
}

.sensor-card__label {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    margin-bottom: var(--space-sm);
}

.sensor-card__value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.2;
}

.sensor-card__unit {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-text-muted);
}

/* ============================================
   RECOMMENDATION CARD
   ============================================ */
.recommendation-card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-base), box-shadow var(--transition-base), background-color var(--transition-base), border-color var(--transition-base);
}

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

.recommendation-card__header {
    padding: var(--space-lg);
    background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
    color: #FFFFFF;
}

.recommendation-card__header h2 {
    color: #FFFFFF;
    font-size: 1.2rem;
    margin: 0;
}

.recommendation-card__body {
    padding: var(--space-xl) var(--space-lg);
}

.recommendation-card__body p {
    margin-bottom: var(--space-lg);
}

.btn--lg {
    padding: 0.9rem 2rem;
    font-size: 1rem;
}

/* ============================================
   DATA TABLES
   ============================================ */
.table-wrapper {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
    background-color: var(--color-surface);
    transition: background-color var(--transition-base);
}

.data-table thead {
    background-color: var(--color-bg-secondary);
}

.data-table th {
    padding: 0.75rem 1rem;
    text-align: left;
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    border-bottom: 2px solid var(--color-border);
    white-space: nowrap;
}

.data-table td {
    padding: 0.7rem 1rem;
    color: var(--color-text);
    border-bottom: 1px solid var(--color-border);
    white-space: nowrap;
}

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

.data-table tbody tr:hover {
    background-color: var(--color-bg-secondary);
}

.data-table__empty {
    text-align: center;
    color: var(--color-text-muted);
    padding: var(--space-xl) !important;
    font-style: italic;
}

/* --- Table Badges --- */
.table-badge {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    font-size: 0.7rem;
    font-weight: 600;
    border-radius: 9999px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.table-badge--ai {
    background: rgba(46, 125, 50, 0.1);
    color: var(--color-primary);
}

.table-badge--manual {
    background: rgba(33, 150, 243, 0.1);
    color: #1E88E5;
}

.table-badge--status {
    background: rgba(255, 152, 0, 0.1);
    color: #F57C00;
}

[data-theme="dark"] .table-badge--ai {
    background: rgba(102, 187, 106, 0.15);
}

[data-theme="dark"] .table-badge--manual {
    background: rgba(66, 165, 245, 0.15);
    color: #42A5F5;
}

[data-theme="dark"] .table-badge--status {
    background: rgba(255, 183, 77, 0.15);
    color: #FFB74D;
}

.table-badge--event {
    background: rgba(211, 47, 47, 0.1);
    color: #D32F2F;
}

[data-theme="dark"] .table-badge--event {
    background: rgba(239, 83, 80, 0.15);
    color: #EF5350;
}

/* ============================================
   OVERRIDE CARD
   ============================================ */
.override-card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: background-color var(--transition-base), border-color var(--transition-base);
}

.override-card__header {
    padding: var(--space-lg);
    background: linear-gradient(135deg, #1565C0, #1E88E5);
    color: #FFFFFF;
}

.override-card__header h2 {
    color: #FFFFFF;
    font-size: 1.2rem;
    margin: 0;
}

.override-card__body {
    padding: var(--space-xl) var(--space-lg);
}

.override-card__body p {
    margin-bottom: var(--space-lg);
}

/* --- Override Form Layout --- */
.override-form__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

/* ============================================
   SECTION HEADER ROW (title + filter inline)
   ============================================ */
.section__header-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
    flex-wrap: wrap;
}

/* --- Filter Button Group --- */
.filter-group {
    display: flex;
    gap: 4px;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 3px;
}

.filter-btn {
    padding: 0.35rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    background: transparent;
    border-radius: calc(var(--radius-sm) - 2px);
    text-decoration: none;
    transition: background-color var(--transition-fast), color var(--transition-fast);
    cursor: pointer;
}

.filter-btn:hover {
    color: var(--color-primary);
    background: rgba(46, 125, 50, 0.06);
    transform: none;
    box-shadow: none;
}

.filter-btn--active {
    background: var(--color-primary);
    color: #FFFFFF;
}

.filter-btn--active:hover {
    background: var(--color-primary);
    color: #FFFFFF;
}

[data-theme="dark"] .filter-btn:hover {
    background: rgba(102, 187, 106, 0.1);
}

[data-theme="dark"] .filter-btn--active {
    background: #388E3C;
    color: #FFFFFF;
}

/* ============================================
   CALIBRATION CARDS
   ============================================ */
.calibration-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.calibration-grid--half {
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.calibration-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    text-align: center;
    transition: background-color var(--transition-base), border-color var(--transition-base);
}

.calibration-card__icon {
    font-size: 1.8rem;
    margin-bottom: var(--space-sm);
}

.calibration-card__label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--space-md);
}

.calibration-card__input-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
}

.calibration-card__input-row input {
    width: 90px;
    padding: 0.5rem 0.6rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-bg-secondary);
    color: var(--color-text);
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    transition: border-color var(--transition-fast);
}

.calibration-card__input-row input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px rgba(46, 125, 50, 0.15);
}

.calibration-card__unit {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--color-text-secondary);
}

.calibration-card__hint {
    font-size: 0.72rem;
    color: var(--color-text-secondary);
    margin-top: var(--space-sm);
    margin-bottom: 0;
}

/* ============================================
   NUTRIENT BAR CHART
   ============================================ */
.nutrient-chart {
    display: flex;
    justify-content: center;
    align-items: flex-end;
    gap: var(--space-xl);
    padding: var(--space-xl) var(--space-lg);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    min-height: 260px;
    transition: background-color var(--transition-base), border-color var(--transition-base);
}

.nutrient-chart__bar-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    flex: 1;
    max-width: 120px;
}

.nutrient-chart__value {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--color-primary);
}

.nutrient-chart__subvalue {
    font-size: 0.68rem;
    font-weight: 400;
    color: var(--color-text-secondary);
    margin-top: -2px;
}

.nutrient-chart__track {
    width: 48px;
    height: 160px;
    background: var(--color-bg-secondary);
    border-radius: var(--radius-sm);
    position: relative;
    overflow: hidden;
    border: 1px solid var(--color-border);
}

.nutrient-chart__fill {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    background: linear-gradient(to top, var(--color-primary), #43A047);
    border-radius: var(--radius-sm);
    transition: height 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

[data-theme="dark"] .nutrient-chart__fill {
    background: linear-gradient(to top, #388E3C, #66BB6A);
}

.nutrient-chart__label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    text-align: center;
}

/* ============================================
   SIDEBAR LAYOUT
   ============================================ */
.dashboard-layout {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 250px;
    min-width: 250px;
    background-color: var(--color-surface);
    border-right: 1px solid var(--color-border);
    padding: var(--space-lg) 0;
    display: flex;
    flex-direction: column;
    height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 200;
    overflow-y: auto;
    transition: background-color var(--transition-base), border-color var(--transition-base), left var(--transition-base);

    /* Hide scrollbar visually but keep functionality */
    -ms-overflow-style: none; /* IE and Edge */
    scrollbar-width: none;    /* Firefox */
}

.sidebar::-webkit-scrollbar {
    display: none; /* Chrome, Safari, and Opera */
}

.sidebar__section {
    padding: 0 var(--space-lg);
    margin-bottom: var(--space-lg);
}

.sidebar__label {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text-muted);
    padding: 0 var(--space-lg);
    margin-bottom: var(--space-sm);
}

.sidebar__nav {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar__link {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 0.65rem var(--space-lg);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: background-color var(--transition-fast), color var(--transition-fast);
    border-left: 3px solid transparent;
}

.sidebar__link:hover {
    background-color: var(--color-bg-secondary);
    color: var(--color-primary);
}

.sidebar__link--active {
    color: var(--color-primary);
    background-color: rgba(46, 125, 50, 0.06);
    border-left-color: var(--color-primary);
    font-weight: 600;
}

[data-theme="dark"] .sidebar__link--active {
    background-color: rgba(102, 187, 106, 0.08);
}

.sidebar__divider {
    height: 1px;
    background: var(--color-border);
    margin: var(--space-md) var(--space-lg);
}

.main-content {
    flex-grow: 1;
    overflow-y: auto;
    min-width: 0;
}

.has-sidebar .main-content {
    margin-left: 250px; /* Offset for sidebar on desktop */
}

/* --- Mobile sidebar toggle button --- */
.sidebar-toggle {
    display: none;
    background: var(--color-bg-secondary);
    color: var(--color-text);
    border: 1px solid var(--color-border);
    padding: 0.45rem 0.7rem;
    border-radius: var(--radius-sm);
    font-size: 1.1rem;
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.sidebar-toggle:hover {
    background: var(--color-primary);
    color: #FFFFFF;
    transform: none;
    box-shadow: none;
}

/* --- Mobile overlay --- */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 199;
}

.sidebar-overlay.active {
    display: block;
}

/* ============================================
   NOTIFICATION DOT
   ============================================ */
.notif-dot {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 18px;
    height: 18px;
    padding: 0 5px;
    border-radius: 9999px;
    background: #E53935;
    color: #FFFFFF;
    font-size: 0.65rem;
    font-weight: 700;
    margin-left: 6px;
    line-height: 1;
}

/* ============================================
   ALERT CARDS
   ============================================ */
.alert-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.alert-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-left: 4px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: background-color var(--transition-base), border-color var(--transition-base);
}

.alert-card--info {
    border-left-color: #2E7D32;
}

.alert-card--warning {
    border-left-color: #F9A825;
}

.alert-card--critical {
    border-left-color: #E53935;
}

.alert-card__header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    background: var(--color-bg-secondary);
    border-bottom: 1px solid var(--color-border);
    flex-wrap: wrap;
}

.alert-card__type {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--color-text-secondary);
}

.alert-card__time {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    margin-left: auto;
}

.alert-card__body {
    padding: var(--space-md) var(--space-lg);
}

.alert-card__body p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--color-text);
    line-height: 1.5;
}

.alert-card__actions {
    padding: 0 var(--space-lg) var(--space-md);
}

.alert-card__insight {
    margin-top: var(--space-sm);
    padding: var(--space-md);
    background: rgba(46, 125, 50, 0.05);
    border-top: 1px solid var(--color-border);
    font-size: 0.85rem;
    line-height: 1.6;
}

[data-theme="dark"] .alert-card__insight {
    background: rgba(102, 187, 106, 0.05);
    border-top-color: rgba(255, 255, 255, 0.05);
}

.alert-card__insight-title {
    display: flex;
    align-items: center;
    gap: 6px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 4px;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
}

.alert-card__insight-text {
    color: var(--color-text-secondary);
}

/* --- Severity Table Badges --- */
.table-badge--info {
    background: rgba(46, 125, 50, 0.1);
    color: #2E7D32;
}

.table-badge--warning {
    background: rgba(249, 168, 37, 0.12);
    color: #F57F17;
}

.table-badge--critical {
    background: rgba(229, 57, 53, 0.1);
    color: #E53935;
}

[data-theme="dark"] .table-badge--info {
    background: rgba(102, 187, 106, 0.12);
    color: #66BB6A;
}

[data-theme="dark"] .table-badge--warning {
    background: rgba(255, 213, 79, 0.12);
    color: #FFD54F;
}

[data-theme="dark"] .table-badge--critical {
    background: rgba(239, 83, 80, 0.12);
    color: #EF5350;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
    h1 {
        font-size: 1.5rem;
    }

    h2 {
        font-size: 1.35rem;
    }

    .navbar {
        padding: var(--space-sm) var(--space-md);
        margin-left: 0;
    }

    .navbar__brand {
        font-size: 1.1rem;
    }

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

    /* Sidebar collapses to off-canvas on mobile */
    .sidebar-toggle {
        display: inline-flex;
    }

    .sidebar {
        position: fixed;
        top: 0;
        left: -260px;
        height: 100vh;
        z-index: 200;
        box-shadow: var(--shadow-lg);
        transition: left var(--transition-base), background-color var(--transition-base);
    }

    .sidebar.open {
        left: 0;
    }

    .dashboard-layout {
        min-height: 100vh;
    }

    .main-content {
        width: 100%;
        margin-left: 0;
    }
}

/* ============================================
   TABLE SORTING ICONS
   ============================================ */
.sort-icon {
    margin-left: var(--space-xs);
    color: var(--color-text-tertiary);
    font-size: 0.8em;
    opacity: 0.5;
    transition: opacity var(--transition-fast), color var(--transition-fast);
}

th:hover .sort-icon {
    opacity: 1;
}

th.sort-asc .sort-icon,
th.sort-desc .sort-icon {
    opacity: 1;
    color: var(--color-primary);
}

/* ============================================
   ADVANCED PAGINATION BAR
   ============================================ */
.pagination-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--space-md);
    margin-top: var(--space-lg);
    padding: var(--space-sm) var(--space-md);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
}

.pagination-bar__info {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
}

.pagination-bar__controls {
    display: flex;
    align-items: center;
    gap: 2px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.pagination-bar__btn {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--color-text);
    background: var(--color-bg);
    border: none;
    text-decoration: none;
    cursor: pointer;
    transition: background var(--transition-fast), color var(--transition-fast);
    white-space: nowrap;
}

.pagination-bar__btn:hover {
    background: var(--color-primary);
    color: #fff;
}

.pagination-bar__btn--disabled {
    color: var(--color-text-muted);
    cursor: not-allowed;
    opacity: 0.5;
}

.pagination-bar__btn--disabled:hover {
    background: var(--color-bg);
    color: var(--color-text-muted);
}

.pagination-bar__current {
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    border-left: 1px solid var(--color-border);
    border-right: 1px solid var(--color-border);
    white-space: nowrap;
}

@media (max-width: 600px) {
    .pagination-bar {
        flex-direction: column;
        text-align: center;
    }
}