/* =========================================================
   WebVision — Design System & Global Styles
   Apenas HTML + CSS (sem JavaScript)
   ========================================================= */

/* --- Variables & Reset --- */
:root {
    color-scheme: dark;
    --bg: #0f172a;
    --bg-elevated: #1e293b;
    --panel: #1e293b;
    --surface: #334155;
    --line: #334155;
    --muted: #94a3b8;
    --text: #f8fafc;
    --blue: #3b82f6;
    --blue-light: #60a5fa;
    --green: #22c55e;
    --red: #ef4444;
    --yellow: #f59e0b;
    --purple: #a855f7;
    --sidebar-width: 260px;
    --topbar-height: 64px;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --transition: 0.2s ease;
}

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html, body {
    min-height: 100vh;
}

body {
    background: var(--bg);
    color: var(--text);
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 14px;
    line-height: 1.5;
}

a {
    color: inherit;
    text-decoration: none;
}

ul, ol {
    list-style: none;
}

button, input, select, textarea {
    font: inherit;
    color: inherit;
}

button {
    cursor: pointer;
}

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

table {
    border-collapse: collapse;
    width: 100%;
}

/* --- Utility --- */
.font-monospace { font-family: 'Consolas', 'Courier New', monospace; }
.small { font-size: 0.8125rem; }
.text-secondary { color: var(--muted); }
.text-center { text-align: center; }

/* =========================================================
   LAYOUT — App Shell
   ========================================================= */
.app-layout {
    display: flex;
    min-height: 100vh;
}

/* --- Sidebar --- */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--bg-elevated);
    border-right: 1px solid var(--line);
    display: flex;
    flex-direction: column;
    z-index: 100;
    overflow-y: auto;
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1.25rem 1.25rem 1rem;
    border-bottom: 1px solid var(--line);
}

.brand-mark {
    display: grid;
    place-items: center;
    width: 38px;
    height: 38px;
    border: 1.5px solid var(--blue-light);
    border-radius: var(--radius-sm);
    color: var(--blue-light);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    flex-shrink: 0;
}

.brand-mark--large {
    width: 56px;
    height: 56px;
    font-size: 1rem;
    border-radius: var(--radius-md);
}

.sidebar-brand-text {
    display: flex;
    flex-direction: column;
}

.sidebar-brand-label {
    font-size: 0.65rem;
    letter-spacing: 0.2em;
    color: var(--muted);
    font-weight: 500;
}

.sidebar-brand-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text);
}

.sidebar-nav {
    flex: 1;
    padding: 1rem 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.sidebar-nav-item {}

.sidebar-nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.7rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--muted);
    transition: background var(--transition), color var(--transition);
}

.sidebar-nav-link:hover {
    background: rgba(148, 163, 184, 0.08);
    color: var(--text);
}

.sidebar-nav-item.active .sidebar-nav-link {
    background: rgba(59, 130, 246, 0.12);
    color: var(--blue-light);
}

.nav-icon {
    width: 20px;
    text-align: center;
    font-size: 0.85rem;
}

.sidebar-footer {
    padding: 1rem 1.25rem;
    border-top: 1px solid var(--line);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.sidebar-user {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.sidebar-user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: rgba(59, 130, 246, 0.2);
    color: var(--blue-light);
    display: grid;
    place-items: center;
    font-size: 0.7rem;
    font-weight: 700;
}

.sidebar-user-info {
    display: flex;
    flex-direction: column;
}

.sidebar-user-name {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text);
}

.sidebar-user-role {
    font-size: 0.7rem;
    color: var(--muted);
}

.sidebar-logout {
    font-size: 0.75rem;
    color: var(--muted);
    padding: 0.3rem 0.6rem;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    transition: color var(--transition), border-color var(--transition);
}

.sidebar-logout:hover {
    color: var(--red);
    border-color: var(--red);
}

/* --- Main Wrapper --- */
.main-wrapper {
    margin-left: var(--sidebar-width);
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* --- Topbar --- */
.topbar {
    height: var(--topbar-height);
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--line);
    background: var(--bg);
    position: sticky;
    top: 0;
    z-index: 50;
}

.topbar-left {
    display: flex;
    align-items: baseline;
    gap: 0.75rem;
}

.topbar-title {
    font-size: 1.15rem;
    font-weight: 700;
}

.topbar-subtitle {
    font-size: 0.8rem;
    color: var(--muted);
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

/* --- Main Content --- */
.main-content {
    flex: 1;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* =========================================================
   COMPONENTS
   ========================================================= */

/* --- Status Badge --- */
.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0.85rem;
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 500;
    border: 1px solid var(--line);
    background: rgba(148, 163, 184, 0.06);
}

.status-badge--success {
    border-color: rgba(34, 197, 94, 0.3);
    color: var(--green);
}

.status-badge--warning {
    border-color: rgba(245, 158, 11, 0.3);
    color: var(--yellow);
}

.status-badge-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--green);
    animation: pulse 2s infinite;
}

.status-badge-dot--warning {
    background: var(--yellow);
}

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

.header-note {
    padding: 0.4rem 0.85rem;
    border: 1px solid var(--line);
    border-radius: 999px;
    color: var(--muted);
    font-size: 0.78rem;
}

/* --- KPI Cards --- */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}

.kpi-grid--3 {
    grid-template-columns: repeat(3, 1fr);
}

.kpi-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem;
    background: var(--bg-elevated);
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    transition: border-color var(--transition);
}

.kpi-card:hover {
    border-color: var(--blue);
}

.kpi-card--border-red { border-left: 3px solid var(--red); }
.kpi-card--border-yellow { border-left: 3px solid var(--yellow); }
.kpi-card--border-blue { border-left: 3px solid var(--blue); }

.kpi-icon {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-sm);
    display: grid;
    place-items: center;
    font-size: 1.1rem;
    font-weight: 700;
    flex-shrink: 0;
}

.kpi-icon--blue { background: rgba(59, 130, 246, 0.15); color: var(--blue-light); }
.kpi-icon--green { background: rgba(34, 197, 94, 0.15); color: var(--green); }
.kpi-icon--yellow { background: rgba(245, 158, 11, 0.15); color: var(--yellow); }
.kpi-icon--red { background: rgba(239, 68, 68, 0.15); color: var(--red); }
.kpi-icon--purple { background: rgba(168, 85, 247, 0.15); color: var(--purple); }

.kpi-body {
    display: flex;
    flex-direction: column;
}

.kpi-label {
    font-size: 0.75rem;
    color: var(--muted);
    letter-spacing: 0.03em;
}

.kpi-value {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text);
}

/* --- Panel --- */
.panel {
    background: var(--bg-elevated);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

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

.panel-title {
    font-size: 0.95rem;
    font-weight: 600;
}

.panel-badge {
    font-size: 0.7rem;
    padding: 0.25rem 0.6rem;
    border-radius: 999px;
    background: rgba(59, 130, 246, 0.12);
    color: var(--blue-light);
    font-weight: 500;
}

.panel-link {
    font-size: 0.8rem;
    color: var(--blue-light);
    font-weight: 500;
    transition: color var(--transition);
}

.panel-link:hover {
    color: var(--blue);
}

.panel-body {
    padding: 1.25rem;
}

/* --- Dashboard Grid --- */
.dashboard-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 1.5rem;
}

.panel--large { grid-column: 1; }
.panel--side { grid-column: 2; }

/* --- Reports Grid --- */
.reports-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

/* --- Charts (CSS placeholders) --- */
.chart {
    position: relative;
    min-height: 200px;
    overflow: hidden;
    border-radius: var(--radius-sm);
    background: linear-gradient(180deg, rgba(15, 23, 42, 0.5), rgba(15, 23, 42, 0.9));
}

.chart-grid {
    position: absolute;
    inset: 15% 4% 12%;
    background: repeating-linear-gradient(
        to bottom,
        transparent 0,
        transparent calc(25% - 1px),
        rgba(148, 163, 184, 0.12) 25%
    );
}

.chart-line {
    position: absolute;
    z-index: 1;
    inset: 30% 4% 25%;
    border-top: 2.5px solid var(--blue-light);
    transform: skewY(-8deg) rotate(-2deg);
    box-shadow: 0 0 12px rgba(96, 165, 250, 0.5);
}

.chart-blue .chart-line { border-color: var(--blue-light); box-shadow: 0 0 12px rgba(96, 165, 250, 0.5); }
.chart-green .chart-line { border-color: var(--green); box-shadow: 0 0 12px rgba(34, 197, 94, 0.5); transform: skewY(5deg) rotate(2deg); }
.chart-purple .chart-line { border-color: var(--purple); box-shadow: 0 0 12px rgba(168, 85, 247, 0.5); transform: skewY(-3deg) rotate(1deg); }

/* --- Device Cards --- */
.device-list {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.device-card {
    padding: 0.85rem;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    background: rgba(31, 41, 55, 0.4);
    transition: border-color var(--transition), background var(--transition);
}

.device-card:hover {
    border-color: var(--surface);
    background: rgba(31, 41, 55, 0.7);
}

.device-card.selected {
    border-color: var(--blue);
    background: rgba(30, 64, 175, 0.15);
}

.device-heading {
    display: flex;
    align-items: flex-start;
    gap: 0.65rem;
    margin-bottom: 0.6rem;
}

.device-heading h3 {
    margin: 0;
    color: var(--text);
    font-size: 0.85rem;
    font-weight: 600;
}

.device-heading p {
    margin: 0.15rem 0 0;
    color: var(--muted);
    font-family: 'Consolas', monospace;
    font-size: 0.7rem;
}

.device-icon {
    display: grid;
    place-items: center;
    width: 30px;
    height: 30px;
    border-radius: var(--radius-sm);
    background: rgba(59, 130, 246, 0.15);
    color: var(--blue-light);
    font-size: 0.68rem;
    font-weight: 700;
    flex-shrink: 0;
}

.device-icon.database { background: rgba(168, 85, 247, 0.15); color: #d8b4fe; }
.device-icon.desktop { background: rgba(245, 158, 11, 0.12); color: #fcd34d; }
.device-icon.laptop { background: rgba(34, 197, 94, 0.12); color: #86efac; }

.status-dot {
    width: 7px;
    height: 7px;
    margin: 5px 0 0 auto;
    border-radius: 50%;
    background: var(--green);
    box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.12);
}

.metric {
    display: flex;
    justify-content: space-between;
    margin-top: 0.35rem;
    color: var(--muted);
    font-size: 0.72rem;
}

.metric strong {
    color: var(--text);
    font-family: 'Consolas', monospace;
    font-weight: 400;
}

.meter {
    height: 4px;
    margin-top: 0.2rem;
    overflow: hidden;
    border-radius: 99px;
    background: rgba(15, 23, 42, 0.8);
}

.meter span {
    display: block;
    height: 100%;
    border-radius: inherit;
    background: var(--blue);
    transition: width 0.6s ease;
}

.meter.green span,
.meter--green span { background: var(--green); }

/* Inline meter (used in tables) */
.inline-meter {
    height: 4px;
    width: 60px;
    display: inline-block;
    overflow: hidden;
    border-radius: 99px;
    background: rgba(15, 23, 42, 0.8);
    vertical-align: middle;
    margin-right: 0.4rem;
}

.inline-meter span {
    display: block;
    height: 100%;
    border-radius: inherit;
    background: var(--blue);
}

.inline-meter--green span { background: var(--green); }

/* --- Data Table --- */
.data-table {
    width: 100%;
    font-size: 0.82rem;
}

.data-table th,
.data-table td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--line);
}

.data-table th {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--muted);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    background: rgba(15, 23, 42, 0.4);
}

.data-table tbody tr:hover {
    background: rgba(148, 163, 184, 0.04);
}

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

.td-device {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.row-offline {
    opacity: 0.5;
}

/* --- Severity Badges --- */
.severity {
    display: inline-block;
    padding: 0.2rem 0.55rem;
    border-radius: 999px;
    font-size: 0.7rem;
    font-weight: 600;
}

.severity--critical { background: rgba(239, 68, 68, 0.15); color: var(--red); }
.severity--warning { background: rgba(245, 158, 11, 0.15); color: var(--yellow); }
.severity--info { background: rgba(59, 130, 246, 0.12); color: var(--blue-light); }

/* --- Status Pills --- */
.status-pill {
    display: inline-block;
    padding: 0.25rem 0.65rem;
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 600;
}

.status-pill--online { background: rgba(34, 197, 94, 0.12); color: var(--green); }
.status-pill--offline { background: rgba(239, 68, 68, 0.12); color: var(--red); }
.status-pill--maintenance { background: rgba(245, 158, 11, 0.12); color: var(--yellow); }

/* --- Alert Items --- */
.alert-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.alert-item {
    display: flex;
    gap: 1rem;
    padding: 1rem 1.25rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--line);
    background: rgba(15, 23, 42, 0.3);
    transition: border-color var(--transition);
}

.alert-item:hover {
    border-color: var(--surface);
}

.alert-item--critical { border-left: 3px solid var(--red); }
.alert-item--warning { border-left: 3px solid var(--yellow); }
.alert-item--info { border-left: 3px solid var(--blue); }

.alert-item-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    display: grid;
    place-items: center;
    font-size: 0.9rem;
    font-weight: 700;
    flex-shrink: 0;
}

.alert-item--critical .alert-item-icon { background: rgba(239, 68, 68, 0.15); color: var(--red); }
.alert-item--warning .alert-item-icon { background: rgba(245, 158, 11, 0.15); color: var(--yellow); }
.alert-item--info .alert-item-icon { background: rgba(59, 130, 246, 0.12); color: var(--blue-light); }

.alert-item-body {
    flex: 1;
    min-width: 0;
}

.alert-item-header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 0.3rem;
}

.alert-item-title {
    font-size: 0.88rem;
    font-weight: 600;
}

.alert-item-time {
    font-size: 0.72rem;
    color: var(--muted);
    white-space: nowrap;
}

.alert-item-desc {
    font-size: 0.8rem;
    color: var(--muted);
    margin-bottom: 0.5rem;
}

.alert-item-meta {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.alert-item-device {
    font-size: 0.72rem;
    color: var(--muted);
    padding: 0.15rem 0.5rem;
    border: 1px solid var(--line);
    border-radius: 999px;
}

/* --- Filters Bar --- */
.filters-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.85rem 1.25rem;
    background: var(--bg-elevated);
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

/* --- Period Tabs --- */
.period-tabs {
    display: flex;
    gap: 0.25rem;
    background: rgba(15, 23, 42, 0.5);
    padding: 0.2rem;
    border-radius: var(--radius-sm);
}

.period-tab {
    padding: 0.4rem 0.85rem;
    border: none;
    border-radius: 4px;
    background: transparent;
    color: var(--muted);
    font-size: 0.78rem;
    font-weight: 500;
    transition: background var(--transition), color var(--transition);
}

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

.period-tab.active {
    background: var(--blue);
    color: white;
}

/* =========================================================
   FORMS
   ========================================================= */
.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    margin-bottom: 0.4rem;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text);
}

.form-input,
.form-select {
    width: 100%;
    padding: 0.65rem 0.9rem;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: var(--bg);
    color: var(--text);
    font-size: 0.85rem;
    transition: border-color var(--transition);
}

.form-input:focus,
.form-select:focus {
    outline: none;
    border-color: var(--blue);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

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

.form-input--search {
    max-width: 280px;
    padding-left: 2rem;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2394a3b8' stroke-width='2'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cpath d='m21 21-4.35-4.35'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: 0.6rem center;
    background-size: 1rem;
}

.form-select {
    appearance: none;
    padding-right: 2rem;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2394a3b8' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.6rem center;
    background-size: 1rem;
    min-width: 160px;
}

.form-hint {
    display: block;
    margin-top: 0.3rem;
    font-size: 0.72rem;
    color: var(--muted);
}

.form-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.25rem;
}

.form-checkbox {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.82rem;
    color: var(--muted);
    cursor: pointer;
}

.form-checkbox input {
    accent-color: var(--blue);
}

.form-link {
    font-size: 0.8rem;
    color: var(--blue-light);
    transition: color var(--transition);
}

.form-link:hover {
    color: var(--blue);
}

/* Toggle Switch */
.form-toggle {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    cursor: pointer;
}

.toggle-slider {
    position: relative;
    width: 40px;
    height: 22px;
    background: var(--surface);
    border-radius: 99px;
    transition: background var(--transition);
}

.toggle-slider::after {
    content: '';
    position: absolute;
    top: 3px;
    left: 3px;
    width: 16px;
    height: 16px;
    background: white;
    border-radius: 50%;
    transition: transform var(--transition);
}

.form-toggle input:checked + .toggle-slider {
    background: var(--blue);
}

.form-toggle input:checked + .toggle-slider::after {
    transform: translateX(18px);
}

.form-toggle input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-label {
    font-size: 0.8rem;
    color: var(--muted);
}

/* Radio Group */
.radio-group {
    display: flex;
    gap: 1.25rem;
}

.form-radio {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.82rem;
    color: var(--muted);
    cursor: pointer;
}

.form-radio input {
    accent-color: var(--blue);
}

/* =========================================================
   BUTTONS
   ========================================================= */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.6rem 1.15rem;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    font-size: 0.82rem;
    font-weight: 600;
    transition: background var(--transition), border-color var(--transition), transform 0.1s ease;
    white-space: nowrap;
}

.btn:active {
    transform: scale(0.97);
}

.btn-primary {
    background: var(--blue);
    color: white;
}

.btn-primary:hover {
    background: #2563eb;
}

.btn-outline {
    background: transparent;
    border-color: var(--line);
    color: var(--muted);
}

.btn-outline:hover {
    border-color: var(--blue-light);
    color: var(--text);
}

.btn-block {
    width: 100%;
}

/* =========================================================
   SETTINGS PAGE
   ========================================================= */
.settings-layout {
    display: flex;
    gap: 1.5rem;
    min-height: 0;
}

.settings-sidebar {
    width: 200px;
    flex-shrink: 0;
}

.settings-menu {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    position: sticky;
    top: calc(var(--topbar-height) + 1.5rem);
}

.settings-menu-item a {
    display: block;
    padding: 0.6rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--muted);
    transition: background var(--transition), color var(--transition);
}

.settings-menu-item a:hover {
    background: rgba(148, 163, 184, 0.08);
    color: var(--text);
}

.settings-menu-item.active a {
    background: rgba(59, 130, 246, 0.12);
    color: var(--blue-light);
}

.settings-content {
    flex: 1;
    min-width: 0;
}

.settings-section {
    padding: 1.5rem;
    background: var(--bg-elevated);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    margin-bottom: 1.5rem;
}

.settings-section-title {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 0.3rem;
}

.settings-section-desc {
    font-size: 0.8rem;
    color: var(--muted);
    margin-bottom: 1.5rem;
}

.settings-form {
    max-width: 480px;
}

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

.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 1.5rem;
    position: relative;
    z-index: 1;
}

.login-card {
    width: 100%;
    max-width: 400px;
    background: var(--bg-elevated);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    padding: 2.5rem 2rem;
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-header .brand-mark {
    margin: 0 auto 1rem;
}

.login-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.3rem;
}

.login-subtitle {
    font-size: 0.85rem;
    color: var(--muted);
}

.login-form {
    display: flex;
    flex-direction: column;
}

.login-footer {
    text-align: center;
    margin-top: 1.5rem;
    font-size: 0.75rem;
    color: var(--muted);
}

.login-bg-decor {
    position: fixed;
    top: -30%;
    right: -10%;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 1024px) {
    .sidebar {
        width: 70px;
        align-items: center;
    }

    .sidebar-brand-text,
    .sidebar-nav-link span:not(.nav-icon),
    .sidebar-user-info,
    .sidebar-logout {
        display: none;
    }

    .sidebar-brand {
        justify-content: center;
        padding: 1rem 0.5rem;
    }

    .sidebar-nav-link {
        justify-content: center;
        padding: 0.8rem;
    }

    .sidebar-footer {
        justify-content: center;
        padding: 1rem 0.5rem;
    }

    .main-wrapper {
        margin-left: 70px;
    }

    :root {
        --sidebar-width: 70px;
    }

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

    .panel--side {
        grid-column: auto;
    }

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

    .kpi-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .settings-layout {
        flex-direction: column;
    }

    .settings-sidebar {
        width: 100%;
    }

    .settings-menu {
        flex-direction: row;
        flex-wrap: wrap;
        position: static;
    }
}

@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        bottom: 0;
        top: auto;
        left: 0;
        width: 100%;
        height: 60px;
        flex-direction: row;
        border-right: none;
        border-top: 1px solid var(--line);
    }

    .sidebar-brand,
    .sidebar-footer {
        display: none;
    }

    .sidebar-nav {
        flex-direction: row;
        justify-content: space-around;
        width: 100%;
        padding: 0.5rem;
        gap: 0;
    }

    .sidebar-nav-link {
        flex-direction: column;
        font-size: 0.65rem;
        padding: 0.4rem 0.6rem;
        gap: 0.2rem;
    }

    .sidebar-nav-link span:not(.nav-icon) {
        display: block;
    }

    .nav-icon {
        font-size: 1rem;
    }

    .main-wrapper {
        margin-left: 0;
        margin-bottom: 60px;
    }

    :root {
        --sidebar-width: 0px;
    }

    .topbar {
        padding: 0 1rem;
    }

    .topbar-subtitle {
        display: none;
    }

    .main-content {
        padding: 1rem;
    }

    .kpi-grid,
    .kpi-grid--3 {
        grid-template-columns: 1fr;
    }

    .filters-bar {
        flex-direction: column;
        align-items: stretch;
    }

    .filter-group {
        flex-wrap: wrap;
    }

    .form-input--search {
        max-width: 100%;
    }

    .form-select {
        min-width: 0;
        flex: 1;
    }

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

    .data-table th,
    .data-table td {
        padding: 0.5rem 0.6rem;
    }
}

@media (max-width: 480px) {
    .login-card {
        padding: 2rem 1.25rem;
    }

    .topbar-right {
        display: none;
    }
}