/* ================================================================
   OCPP Charger Simulator — Untitled UI Design System
   Uses shared tokens from /shared/css/untitled-ui-tokens.css
   ================================================================ */

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

body {
    font-family: var(--font-family);
    background: var(--color-bg-secondary);
    color: var(--color-text-primary);
    min-height: 100vh;
    font-size: var(--text-sm);
    line-height: var(--leading-sm);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ================================================================
   HEADER
   ================================================================ */
#app-header {
    background: linear-gradient(135deg, var(--brand-700), var(--brand-600) 50%, var(--brand-500));
    color: #FFFFFF;
    padding: 0 var(--spacing-3xl);
    height: 64px;
    display: flex;
    align-items: center;
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: none;
}

/* Subtle lighter line at top for depth */
#app-header::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: rgba(255, 255, 255, 0.15);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
}

.header-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.header-icon {
    width: 24px;
    height: 24px;
    color: rgba(255, 255, 255, 0.9);
}

#app-header h1 {
    font-size: var(--text-lg);
    font-weight: var(--font-weight-semibold);
    letter-spacing: -0.02em;
    color: #FFFFFF;
}

.header-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

#app-header nav {
    display: flex;
    gap: var(--spacing-xs);
}

/* === Preferences Dropdown === */
.prefs-dropdown {
    position: relative;
    flex-shrink: 0;
}
.prefs-toggle {
    display: flex;
    align-items: center;
    gap: 4px;
    height: 36px;
    padding: 0 10px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.1);
    cursor: pointer;
    color: rgba(255, 255, 255, 0.85);
    font-size: var(--text-sm);
    font-weight: 600;
    transition: all 0.15s ease;
}
.prefs-toggle:hover {
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
}
.prefs-menu {
    display: none;
    position: absolute;
    right: 0;
    top: calc(100% + 6px);
    min-width: 160px;
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 24px rgba(0,0,0,0.15);
    z-index: 1000;
    padding: var(--spacing-xs) 0;
}
.prefs-menu.open { display: block; }
.prefs-section { padding: 2px 0; }
.prefs-section-label {
    padding: 4px 14px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-tertiary);
}
.prefs-divider {
    height: 1px;
    background: var(--color-border);
    margin: 4px 0;
}
.prefs-item {
    display: flex;
    align-items: center;
    width: 100%;
    padding: 7px 14px;
    border: none;
    background: none;
    cursor: pointer;
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    text-align: left;
    transition: background 0.1s;
}
.prefs-item:hover {
    background: var(--color-bg-secondary);
    color: var(--color-text-primary);
}
.prefs-item.active {
    color: var(--color-primary);
    font-weight: 600;
}
.prefs-item.active::after {
    content: '\2713';
    margin-left: auto;
    font-size: 0.85em;
}

.nav-link {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-sm);
    font-size: var(--text-sm);
    font-weight: var(--font-weight-semibold);
    transition: all 0.15s ease;
}

.nav-link:hover {
    color: #FFFFFF;
    background: rgba(255, 255, 255, 0.12);
}

.nav-link.active {
    color: #FFFFFF;
    background: rgba(255, 255, 255, 0.18);
}

/* ================================================================
   MAIN CONTENT
   ================================================================ */
#app-content {
    max-width: 1280px;
    margin: 0 auto;
    padding: var(--spacing-3xl);
}

/* ================================================================
   DASHBOARD
   ================================================================ */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
    gap: var(--spacing-xl);
}

.charger-card {
    background: var(--color-bg-primary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: box-shadow 0.2s ease;
    border: 1px solid var(--color-border-secondary);
}

.charger-card:hover {
    box-shadow: var(--shadow-md);
}

.charger-card-header {
    padding: var(--spacing-xl) var(--spacing-2xl);
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--color-border-secondary);
}

.charger-id-section {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.charger-name {
    font-size: var(--text-md);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
}

/* === Badge (Type + Status) === */
.type-badge {
    font-size: var(--text-xs);
    font-weight: var(--font-weight-semibold);
    padding: var(--spacing-xxs) var(--spacing-md);
    border-radius: var(--radius-full);
    letter-spacing: 0.02em;
    border: 1px solid transparent;
}

.type-badge.DC {
    background: var(--badge-warning-bg);
    color: var(--badge-warning-fg);
    border-color: var(--badge-warning-border);
}

.type-badge.AC {
    background: var(--badge-brand-bg);
    color: var(--badge-brand-fg);
    border-color: var(--badge-brand-border);
}

/* === Status Indicator === */
.status-indicator {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--text-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: var(--radius-full);
    flex-shrink: 0;
}

.status-dot.Available { background: var(--success-500); }
.status-dot.Charging { background: var(--brand-500); animation: pulse 2s infinite; }
.status-dot.Preparing { background: var(--warning-500); animation: pulse 1.5s infinite; }
.status-dot.Finishing { background: var(--brand-400); }
.status-dot.Unavailable { background: var(--gray-400); }
.status-dot.Faulted { background: var(--error-500); }
.status-dot.Reserved { background: var(--brand-700); animation: pulse 2s infinite; }
.status-dot.disconnected { background: var(--gray-300); }

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

/* === Charger Card Body === */
.charger-card-body {
    padding: var(--spacing-xl) var(--spacing-2xl);
}

.charger-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xxs);
}

.stat-label {
    font-size: var(--text-xs);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.stat-value {
    font-size: var(--display-xs);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    font-variant-numeric: tabular-nums;
}

.stat-value .unit {
    font-size: var(--text-sm);
    font-weight: var(--font-weight-regular);
    color: var(--color-text-tertiary);
    margin-left: 2px;
}

/* === Availability Badge === */
.availability-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xxs) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: var(--font-weight-medium);
    border: 1px solid transparent;
}

.availability-badge.Operative {
    background: var(--badge-success-bg);
    color: var(--badge-success-fg);
    border-color: var(--badge-success-border);
}

.availability-badge.Inoperative {
    background: var(--badge-error-bg);
    color: var(--badge-error-fg);
    border-color: var(--badge-error-border);
}

/* === Connector Status === */
.connector-status-row {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border-secondary);
}

.connector-dots {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-top: var(--spacing-sm);
}

.connector-dot-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xxs) var(--spacing-md);
    background: var(--color-bg-secondary);
    border-radius: var(--radius-sm);
    font-size: var(--text-xs);
    border: 1px solid var(--color-border-tertiary);
}

.connector-label {
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-secondary);
}

.connector-status-text {
    color: var(--color-text-tertiary);
    font-size: 11px;
}

/* === Connection Info Row === */
.connection-info-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
    margin-top: var(--spacing-sm);
    border-top: 1px solid var(--color-border-secondary);
    font-size: var(--text-xs);
    color: var(--color-text-secondary);
}
.connection-status {
    display: flex;
    align-items: center;
    gap: 6px;
    font-weight: var(--font-weight-medium);
}
.conn-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
}
.conn-dot.connected {
    background: var(--color-bg-success-solid, #12b76a);
    box-shadow: 0 0 4px rgba(18, 183, 106, 0.4);
}
.conn-dot.disconnected {
    background: var(--color-text-quaternary, #98a2b3);
}
.connection-info-right {
    display: flex;
    align-items: center;
    gap: 8px;
}
.heartbeat-info {
    color: var(--color-text-tertiary);
    font-variant-numeric: tabular-nums;
}
.ocpp-logs-link {
    text-decoration: none;
    color: var(--color-text-tertiary);
}
.ocpp-logs-link:hover {
    color: var(--color-text-primary);
    background: var(--color-bg-quaternary);
}

/* === Charger Logs Page === */
.charger-logs-title {
    display: flex;
    align-items: center;
    gap: 12px;
}
.charger-logs-title h2 {
    margin: 0;
}
.back-link {
    color: var(--color-text-tertiary);
    text-decoration: none;
    font-size: var(--text-sm);
    padding: 4px 8px;
    border-radius: var(--radius-md);
}
.back-link:hover {
    color: var(--color-text-primary);
    background: var(--color-bg-quaternary);
}

/* === Version Badge === */
.version-badge {
    font-size: 10px;
    font-weight: var(--font-weight-bold);
    padding: 1px 5px;
    border-radius: var(--radius-sm);
    background: var(--color-bg-quaternary);
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border-primary);
    white-space: nowrap;
}
.version-toggle-btn:hover:not(:disabled) .version-badge {
    background: var(--color-bg-brand-secondary);
    color: var(--color-text-brand-primary);
    border-color: var(--color-text-brand-primary);
}

/* === Charger Friendly Name === */
.charger-friendly-name {
    font-size: 11px;
    color: var(--color-text-tertiary);
    margin-right: 4px;
    max-width: 80px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* === Error Simulation Row === */
.error-sim-row {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: var(--spacing-sm) 0;
}
.error-sim-row .config-label {
    flex-shrink: 0;
    min-width: fit-content;
}
.error-sim-row .error-select {
    flex: 1;
    min-width: 0;
}

/* === Edit Button (icon) === */
.btn-icon {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-text-tertiary);
    padding: 2px 4px;
    border-radius: var(--radius-sm);
    display: inline-flex;
    align-items: center;
    transition: color 0.15s, background 0.15s;
}
.btn-icon:hover:not(:disabled) {
    color: var(--color-text-primary);
    background: var(--color-bg-quaternary);
}
.btn-icon:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

/* === Rename Modal === */
.sim-modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.45);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}
.sim-modal {
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border-primary);
    border-radius: var(--radius-xl);
    width: 90%;
    max-width: 400px;
    box-shadow: var(--shadow-xl);
}
.sim-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px 12px;
    border-bottom: 1px solid var(--color-border-secondary);
}
.sim-modal-header h3 {
    margin: 0;
    font-size: var(--text-md);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
}
.sim-modal-close {
    background: none;
    border: none;
    font-size: 22px;
    color: var(--color-text-tertiary);
    cursor: pointer;
    line-height: 1;
}
.sim-modal-body {
    padding: 16px 20px;
}
.sim-modal-body .config-label {
    margin-bottom: 6px;
    display: block;
}
.sim-modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    padding: 12px 20px 16px;
    border-top: 1px solid var(--color-border-secondary);
}

/* === Session Progress === */
.session-progress {
    padding: var(--spacing-lg) 0 0 0;
    margin-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border-secondary);
}
.session-progress-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
}
.session-progress-title {
    font-size: var(--text-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-brand-primary);
}
.session-stats {
    display: flex;
    gap: 20px;
    margin-bottom: 8px;
}
.session-stat {
    display: flex;
    flex-direction: column;
    gap: 1px;
}
.session-stat-label {
    font-size: 11px;
    color: var(--color-text-tertiary);
}
.session-stat-value {
    font-size: var(--text-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
}
.progress-bar-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 4px;
}
.progress-bar-track {
    flex: 1;
    height: 8px;
    background: var(--color-bg-quaternary);
    border-radius: var(--radius-full);
    overflow: hidden;
}
.progress-bar-fill {
    height: 100%;
    background: var(--color-bg-brand-solid);
    border-radius: var(--radius-full);
    transition: width 0.5s ease;
}
.progress-pct {
    font-size: 11px;
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-secondary);
    min-width: 32px;
    text-align: right;
}
.progress-target {
    font-size: 11px;
    color: var(--color-text-tertiary);
}

/* === Stop / Danger Button === */
.btn-danger {
    background: var(--color-bg-error-solid, #d92d20);
    color: #fff;
    border: none;
    border-radius: var(--radius-md);
    padding: 4px 12px;
    font-size: 12px;
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
}
.btn-danger:hover:not(:disabled) {
    background: #b42318;
}
.btn-danger:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-secondary {
    background: var(--color-bg-primary);
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border-primary);
    border-radius: var(--radius-md);
    padding: 6px 14px;
    font-size: var(--text-sm);
    cursor: pointer;
}
.btn-secondary:hover {
    background: var(--color-bg-secondary-hover);
}

/* === Per-Charger Config Section === */
.charger-config-section {
    padding: var(--spacing-lg) 0 0 0;
    margin-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border-secondary);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.config-meta {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.config-meta-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
    line-height: 1.2;
}

.config-meta-item svg {
    flex-shrink: 0;
    color: var(--color-text-quaternary);
}

.config-meta-item .backend-url-display,
.config-meta-item .rfid-display {
    color: var(--color-text-secondary);
}

.config-row {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.config-label {
    font-size: var(--text-xs);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-secondary);
}

.config-input-row {
    display: flex;
    gap: 6px;
    align-items: center;
}

.config-input {
    font-size: var(--text-sm) !important;
    padding: 6px 10px !important;
    height: 32px;
}

.btn-save {
    flex-shrink: 0;
    padding: 5px 10px;
    font-size: 12px;
    background: var(--color-bg-quaternary);
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border-primary);
    border-radius: var(--radius-md);
    cursor: pointer;
    white-space: nowrap;
}

.btn-save:hover:not(:disabled) {
    background: var(--color-bg-secondary-hover);
}

.btn-save:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.manual-start-row {
    display: flex;
    gap: 6px;
    align-items: center;
}

.manual-input-group {
    display: flex;
    align-items: center;
    gap: 3px;
    flex: 1;
    min-width: 0;
}

.manual-input-group .energy-input {
    width: 70px;
    flex: none;
}

.manual-input-group .rfid-input {
    flex: 1;
    min-width: 70px;
}
.rfid-group {
    gap: 2px;
}
.rfid-group .btn-icon {
    flex-shrink: 0;
    padding: 4px;
}

.input-unit {
    font-size: 11px;
    color: var(--color-text-tertiary);
    flex-shrink: 0;
}

.btn-start {
    flex-shrink: 0;
    padding: 5px 14px !important;
    font-size: 12px !important;
    height: 32px;
    font-weight: var(--font-weight-semibold);
}

.btn-start:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* === Free Charging Toggle Row === */
.free-charging-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg) 0 0 0;
    margin-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border-secondary);
}

.toggle-label {
    display: flex;
    flex-direction: column;
    gap: 1px;
}

.toggle-label-text {
    font-size: var(--text-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
}

.toggle-hint {
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
}

/* === Toggle Switch === */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 36px;
    height: 20px;
    flex-shrink: 0;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0; left: 0; right: 0; bottom: 0;
    background: var(--toggle-bg-off);
    border-radius: var(--radius-full);
    transition: background 0.2s ease;
}

.toggle-slider::before {
    content: "";
    position: absolute;
    height: 16px;
    width: 16px;
    left: 2px;
    bottom: 2px;
    background: var(--toggle-knob);
    border-radius: var(--radius-full);
    transition: transform 0.2s ease;
    box-shadow: var(--shadow-xs);
}

.toggle-switch input:checked + .toggle-slider {
    background: var(--toggle-bg-on);
}

.toggle-switch input:checked + .toggle-slider::before {
    transform: translateX(16px);
}

.toggle-switch input:focus-visible + .toggle-slider {
    box-shadow: var(--ring-brand);
}

/* === Charger Card Footer === */
.charger-card-footer {
    padding: var(--spacing-lg) var(--spacing-2xl);
    border-top: 1px solid var(--color-border-secondary);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* === Mode Toggle (Segmented Control) === */
.mode-toggle {
    display: flex;
    background: var(--color-bg-secondary);
    border-radius: var(--radius-md);
    padding: var(--spacing-xxs);
    gap: var(--spacing-xxs);
    border: 1px solid var(--color-border-secondary);
}

.mode-btn {
    padding: var(--spacing-sm) var(--spacing-xl);
    border: none;
    background: transparent;
    border-radius: var(--radius-sm);
    font-size: var(--text-sm);
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    color: var(--color-text-tertiary);
    transition: all 0.15s ease;
    font-family: var(--font-family);
}

.mode-btn:hover {
    color: var(--color-text-secondary);
    background: var(--color-bg-tertiary);
}

.mode-btn.active {
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
    box-shadow: var(--shadow-xs);
    font-weight: var(--font-weight-semibold);
}

.mode-btn.active.off { color: var(--color-text-tertiary); }
.mode-btn.active.on { color: var(--color-text-success); }
.mode-btn.active.autopilot { color: var(--color-text-brand-primary); }

.mode-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* === Logs Link Button (footer) === */
.btn-logs-link {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: var(--text-xs);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-tertiary);
    text-decoration: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    transition: all 0.15s ease;
}
.btn-logs-link:hover {
    color: var(--color-text-brand-primary);
    background: var(--color-bg-brand-secondary);
}

/* ================================================================
   LOGS
   ================================================================ */
.logs-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-xl);
    gap: var(--spacing-lg);
}

.logs-header h2 {
    font-size: var(--text-xl);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
}

.logs-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.logs-controls .btn {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--text-sm);
    white-space: nowrap;
}

.logs-filter {
    padding: var(--spacing-md) var(--spacing-lg);
    border: 1px solid var(--input-border);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-family: var(--font-family);
    background: var(--input-bg);
    color: var(--input-text);
    min-width: 200px;
    transition: border-color 0.15s, box-shadow 0.15s;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='none' stroke='%23717680' stroke-width='2'%3E%3Cpath d='M3 5l3 3 3-3'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 32px;
}

.logs-filter:focus {
    outline: none;
    border-color: var(--input-border-focus);
    box-shadow: var(--input-ring-focus);
}

.logs-container {
    background: var(--color-bg-primary);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border-secondary);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.logs-table-wrapper {
    max-height: calc(100vh - 220px);
    overflow-y: auto;
}

.logs-table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--text-sm);
}

.logs-table th {
    position: sticky;
    top: 0;
    background: var(--color-bg-secondary);
    padding: var(--spacing-lg) var(--spacing-xl);
    text-align: left;
    font-weight: var(--font-weight-medium);
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--color-text-tertiary);
    border-bottom: 1px solid var(--color-border-secondary);
    z-index: 1;
}

.logs-table td {
    padding: var(--spacing-md) var(--spacing-xl);
    border-bottom: 1px solid var(--color-border-tertiary);
    vertical-align: top;
}

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

.log-timestamp {
    font-family: var(--font-family-mono);
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
    white-space: nowrap;
}

.log-direction {
    font-weight: var(--font-weight-medium);
    font-size: var(--text-xs);
}

.log-direction.sent {
    color: var(--brand-600);
}

.log-direction.received {
    color: var(--success-600);
}

.log-charger {
    font-weight: var(--font-weight-semibold);
    font-size: var(--text-xs);
    color: var(--color-text-secondary);
}

.log-message-type {
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
}

.log-payload {
    font-family: var(--font-family-mono);
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
    max-width: 400px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    cursor: pointer;
}

.log-payload.expanded {
    white-space: pre-wrap;
    word-break: break-all;
    max-width: none;
}

.logs-empty {
    padding: var(--spacing-6xl);
    text-align: center;
    color: var(--color-text-tertiary);
    font-size: var(--text-sm);
}

/* ================================================================
   SETTINGS
   ================================================================ */
.settings-container {
    max-width: 640px;
}
.settings-container.settings-wide {
    max-width: 1000px;
}

/* --- Settings: Charger card grid (2 columns) --- */
.settings-charger-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}
@media (max-width: 720px) {
    .settings-charger-grid {
        grid-template-columns: 1fr;
    }
}
.settings-full-width {
    grid-column: 1 / -1;
}
.settings-charger-card {
    background: var(--color-bg-primary);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border-secondary);
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-xl);
    display: flex;
    flex-direction: column;
}
.settings-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
}
.settings-card-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: var(--font-weight-semibold);
    font-size: var(--text-sm);
}
.settings-card-name {
    color: var(--color-text-primary);
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
    font-size: var(--text-xs);
}
.settings-card-body {
    flex: 1;
}
.settings-card-body .form-group {
    margin-bottom: var(--spacing-md);
}
.settings-card-body .form-label {
    font-size: var(--text-xs);
    margin-bottom: var(--spacing-xs);
}
.settings-card-row-2col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}
.settings-card-footer {
    display: flex;
    justify-content: flex-end;
    margin-top: var(--spacing-sm);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border-primary);
}
.card-disabled-hint {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-tertiary);
}
.settings-version-toggle {
    cursor: pointer;
    background: none;
    border: none;
    padding: 2px;
}
.settings-version-toggle:hover:not(:disabled) .version-badge {
    background: var(--color-bg-brand-secondary);
    color: var(--color-text-brand-primary);
    border-color: var(--color-text-brand-primary);
}
.settings-version-toggle:disabled {
    cursor: not-allowed;
    opacity: 0.5;
}
.settings-bottom-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}
@media (max-width: 720px) {
    .settings-bottom-row {
        grid-template-columns: 1fr;
    }
}

.settings-section {
    background: var(--color-bg-primary);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border-secondary);
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-3xl);
    margin-bottom: var(--spacing-xl);
}

.settings-section h2 {
    font-size: var(--text-lg);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-primary);
}

.settings-section .section-desc {
    font-size: var(--text-sm);
    color: var(--color-text-tertiary);
    margin-bottom: var(--spacing-2xl);
}

.form-group {
    margin-bottom: var(--spacing-xl);
}

.form-group:last-child {
    margin-bottom: 0;
}

.form-label {
    display: block;
    font-size: var(--text-sm);
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-secondary);
}

.form-input {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    border: 1px solid var(--input-border);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-family: var(--font-family);
    color: var(--input-text);
    background: var(--input-bg);
    transition: border-color 0.15s, box-shadow 0.15s;
    line-height: var(--leading-sm);
}

.form-input:hover {
    border-color: var(--input-border-hover);
}

.form-input:focus {
    outline: none;
    border-color: var(--input-border-focus);
    box-shadow: var(--input-ring-focus);
}

.form-input:disabled {
    background: var(--input-disabled-bg);
    border-color: var(--input-disabled-border);
    color: var(--color-text-disabled);
    cursor: not-allowed;
}

.form-hint {
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
    margin-top: var(--spacing-sm);
}

.chargepoint-id-row {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.chargepoint-id-row .type-badge {
    flex-shrink: 0;
}

.chargepoint-id-row .form-input {
    flex: 1;
}

.cpid-header {
    margin-bottom: var(--spacing-sm);
    padding-bottom: var(--spacing-xs);
    border-bottom: 1px solid var(--color-border-secondary);
}

.cpid-col-label {
    flex: 1;
    font-size: var(--text-xs);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.conn-col-label {
    width: 72px;
    flex: none;
    font-size: var(--text-xs);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    text-align: center;
}

/* ================================================================
   BUTTONS
   ================================================================ */
.btn {
    padding: var(--spacing-md) var(--spacing-xl);
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    font-family: var(--font-family);
    transition: all 0.15s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    line-height: var(--leading-sm);
}

.btn:focus-visible {
    box-shadow: var(--ring-brand);
}

.btn-primary {
    background: var(--button-primary-bg);
    color: var(--button-primary-fg);
    border-color: var(--button-primary-border);
}

.btn-primary:hover {
    background: var(--button-primary-bg-hover);
}

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

.btn-secondary {
    background: var(--button-secondary-bg);
    color: var(--button-secondary-fg);
    border-color: var(--button-secondary-border);
}

.btn-secondary:hover {
    background: var(--button-secondary-bg-hover);
}

.settings-actions {
    margin-top: var(--spacing-2xl);
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.save-status {
    font-size: var(--text-sm);
    color: var(--color-text-success);
    font-weight: var(--font-weight-medium);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.save-status.visible {
    opacity: 1;
}

/* ================================================================
   TOAST / NOTIFICATION
   ================================================================ */
.toast {
    position: fixed;
    bottom: var(--spacing-3xl);
    right: var(--spacing-3xl);
    background: var(--gray-900);
    color: var(--color-text-white);
    padding: var(--spacing-lg) var(--spacing-2xl);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-weight: var(--font-weight-medium);
    box-shadow: var(--shadow-lg);
    z-index: 200;
    transform: translateY(80px);
    opacity: 0;
    transition: all 0.3s ease;
}

.toast.visible {
    transform: translateY(0);
    opacity: 1;
}

.toast.error {
    background: var(--error-600);
}

/* ================================================================
   MASS CHARGER LOAD TEST
   ================================================================ */
#mass-charger-container {
    margin-top: var(--spacing-2xl);
}

.mass-charger-card {
    background: var(--color-bg-primary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border-secondary);
    overflow: hidden;
    transition: box-shadow 0.2s ease;
}

.mass-charger-card:hover {
    box-shadow: var(--shadow-md);
}

.mass-charger-header {
    padding: var(--spacing-xl) var(--spacing-2xl);
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--color-border-secondary);
}

.mass-charger-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.mass-icon {
    width: 28px;
    height: 28px;
    color: var(--brand-600);
    flex-shrink: 0;
}

.mass-charger-title h3 {
    font-size: var(--text-md);
    font-weight: var(--font-weight-semibold);
    margin: 0;
    color: var(--color-text-primary);
}

.mass-subtitle {
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
    margin-top: 1px;
}

.mass-mode-label {
    font-size: var(--text-xs);
    font-weight: var(--font-weight-semibold);
    padding: var(--spacing-xxs) var(--spacing-lg);
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    background: var(--badge-gray-bg);
    color: var(--badge-gray-fg);
    border: 1px solid var(--badge-gray-border);
}

.mass-mode-label.connect {
    background: var(--badge-brand-bg);
    color: var(--badge-brand-fg);
    border-color: var(--badge-brand-border);
}

.mass-mode-label.charging {
    background: var(--badge-success-bg);
    color: var(--badge-success-fg);
    border-color: var(--badge-success-border);
    animation: pulse 2s infinite;
}

.mass-charger-body {
    padding: var(--spacing-2xl);
}

/* === Slider Section === */
.mass-slider-section {
    margin-bottom: var(--spacing-2xl);
}

.mass-slider-label {
    font-size: var(--text-xs);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    display: block;
    margin-bottom: var(--spacing-lg);
}

.mass-slider-row {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.mass-slider {
    flex: 1;
    -webkit-appearance: none;
    appearance: none;
    height: 6px;
    background: var(--gray-200);
    border-radius: var(--radius-full);
    outline: none;
    cursor: pointer;
}

.mass-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: var(--radius-full);
    background: var(--brand-600);
    cursor: pointer;
    box-shadow: 0 1px 3px rgba(105, 65, 198, 0.3);
    transition: transform 0.15s ease;
}

.mass-slider::-webkit-slider-thumb:hover {
    transform: scale(1.15);
}

.mass-slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: var(--radius-full);
    background: var(--brand-600);
    cursor: pointer;
    border: none;
    box-shadow: 0 1px 3px rgba(105, 65, 198, 0.3);
}

.mass-count-input {
    width: 80px;
    padding: var(--spacing-sm) var(--spacing-lg);
    border: 1px solid var(--input-border);
    border-radius: var(--radius-md);
    font-size: var(--text-md);
    font-weight: var(--font-weight-semibold);
    text-align: center;
    font-family: var(--font-family);
    color: var(--input-text);
    background: var(--input-bg);
    font-variant-numeric: tabular-nums;
}

.mass-count-input:focus {
    outline: none;
    border-color: var(--input-border-focus);
    box-shadow: var(--input-ring-focus);
}

.mass-slider-ticks {
    display: flex;
    justify-content: space-between;
    margin-top: var(--spacing-sm);
    padding: 0 2px;
    font-size: 11px;
    color: var(--color-text-quaternary);
}

/* === Mass Stats Row === */
.mass-stats-row {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
    padding: var(--spacing-xl);
    background: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border-tertiary);
}

.mass-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
}

.mass-stat-value {
    font-size: var(--display-xs);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    font-variant-numeric: tabular-nums;
}

.mass-stat-label {
    font-size: 11px;
    font-weight: var(--font-weight-medium);
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.mass-stat-clickable {
    cursor: pointer;
    border-radius: var(--radius-md);
    padding: var(--spacing-xs) var(--spacing-md);
    transition: background-color 0.15s;
}

.mass-stat-clickable:hover {
    background-color: var(--error-50);
}

/* === Mass Action Buttons === */
.mass-actions {
    display: flex;
    gap: var(--spacing-md);
}

/* Shared base for all mass action buttons */
.btn-mass-connect,
.btn-mass-charge,
.btn-mass-stop,
.btn-mass-disconnect,
.btn-mass-clear-errors {
    flex: 1;
    padding: var(--spacing-lg) var(--spacing-xl);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    font-family: var(--font-family);
    transition: all 0.15s ease;
}

/* Primary action — filled brand */
.btn-mass-charge {
    background: var(--brand-600);
    color: #FFFFFF;
    border: 1px solid var(--brand-600);
}
.btn-mass-charge:hover { background: var(--brand-700); border-color: var(--brand-700); }
.btn-mass-charge.active { background: var(--brand-800); border-color: var(--brand-800); }

/* Secondary brand — outlined brand */
.btn-mass-connect {
    background: transparent;
    color: var(--brand-700);
    border: 1px solid var(--brand-300);
}
.btn-mass-connect:hover { background: var(--brand-50); }
.btn-mass-connect.active { background: var(--brand-100); border-color: var(--brand-400); }
[data-theme="dark"] .btn-mass-connect { color: var(--brand-300); border-color: rgba(127, 86, 217, 0.40); }
[data-theme="dark"] .btn-mass-connect:hover { background: rgba(127, 86, 217, 0.12); }
[data-theme="dark"] .btn-mass-connect.active { background: rgba(127, 86, 217, 0.20); }

/* Destructive — filled error */
.btn-mass-stop {
    background: var(--error-600);
    color: #FFFFFF;
    border: 1px solid var(--error-600);
}
.btn-mass-stop:hover { background: var(--error-700); border-color: var(--error-700); }

/* Secondary gray — outlined */
.btn-mass-disconnect {
    background: transparent;
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border-primary);
}
.btn-mass-disconnect:hover { background: var(--color-bg-secondary); }

/* Tertiary — outlined gray, less prominent */
.btn-mass-clear-errors {
    background: transparent;
    color: var(--color-text-tertiary);
    border: 1px solid var(--color-border-secondary);
}
.btn-mass-clear-errors:hover { background: var(--color-bg-secondary); color: var(--color-text-secondary); }

.btn-mass-connect:disabled,
.btn-mass-charge:disabled,
.btn-mass-stop:disabled,
.btn-mass-disconnect:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* ================================================================
   ERRORS PAGE
   ================================================================ */
.errors-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-2xl);
}

.errors-header h2 {
    font-size: var(--text-xl);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
}

.errors-controls {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.errors-container {
    background: var(--color-bg-primary);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border-secondary);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.errors-table-wrapper {
    max-height: calc(100vh - 200px);
    overflow-y: auto;
}

/* ================================================================
   RESPONSIVE
   ================================================================ */
/* ================================================================
   DARK MODE - Component fixes
   For elements using hardcoded colors or needing special treatment
   ================================================================ */
[data-theme="dark"] .mass-slider {
    background: var(--gray-dark-700);
}

[data-theme="dark"] .logs-filter {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='none' stroke='%2394969C' stroke-width='2'%3E%3Cpath d='M3 5l3 3 3-3'/%3E%3C/svg%3E");
}

[data-theme="dark"] .toast {
    background: var(--gray-dark-200);
    color: var(--gray-dark-950);
}

[data-theme="dark"] .toast.error {
    background: var(--error-500);
    color: #FFFFFF;
}

[data-theme="dark"] .btn-mass-connect,
[data-theme="dark"] .btn-mass-charge,
[data-theme="dark"] .btn-mass-stop,
[data-theme="dark"] .btn-mass-disconnect,
[data-theme="dark"] .btn-mass-clear-errors {
    color: #FFFFFF;
}

[data-theme="dark"] body {
    color-scheme: dark;
}

/* ================================================================
   RESPONSIVE
   ================================================================ */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: var(--spacing-md);
        padding: var(--spacing-md) 0;
    }

    .header-right {
        gap: var(--spacing-md);
    }

    #app-header {
        height: auto;
        padding: var(--spacing-md) var(--spacing-xl);
    }

    #app-header h1 {
        font-size: var(--text-md);
    }

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

    #app-content {
        padding: var(--spacing-xl);
    }

    .logs-header {
        flex-direction: column;
        align-items: stretch;
    }

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

    .mass-actions {
        flex-wrap: wrap;
    }

    .btn-mass-connect,
    .btn-mass-charge,
    .btn-mass-stop,
    .btn-mass-disconnect,
    .btn-mass-clear-errors {
        min-width: calc(50% - var(--spacing-md));
    }
}

/* === Dashboard: Transaction ID === */
.transaction-id {
    font-variant-numeric: tabular-nums;
    font-size: var(--text-xs) !important;
    color: var(--color-text-tertiary);
}

/* === Dashboard: Backend URL display === */
.backend-url-display {
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* === Dashboard: SoC progress bar === */
.soc-progress {
    margin-top: var(--spacing-sm);
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--color-border);
}
.soc-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 4px;
}
.soc-label {
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--color-text-secondary);
}
.soc-value {
    font-size: var(--text-sm);
    font-weight: 700;
    color: var(--color-text-primary);
}
.soc-bar-track {
    position: relative;
    height: 14px;
    background: var(--color-bg-secondary);
    border-radius: 7px;
    overflow: visible;
}
.soc-bar-fill {
    height: 100%;
    border-radius: 7px;
    background: linear-gradient(90deg, #ef4444 0%, #f59e0b 30%, #22c55e 60%, #22c55e 100%);
    transition: width 0.6s ease;
    min-width: 2px;
}
.soc-bar-target {
    position: absolute;
    top: -3px;
    bottom: -3px;
    width: 3px;
    background: var(--color-text-primary);
    border-radius: 2px;
    transform: translateX(-50%);
}
.soc-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.65rem;
    color: var(--color-text-tertiary);
    margin-top: 2px;
}
.soc-target-label {
    font-weight: 500;
    color: var(--color-text-secondary);
}

/* === Dashboard: RFID display === */
.rfid-display {
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
}

/* === Settings: API Key row === */
.api-key-row {
    display: flex;
    gap: var(--spacing-xs);
    align-items: center;
}
.api-key-row .api-key-input {
    flex: 1;
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
    font-size: var(--text-sm);
    letter-spacing: 0.02em;
    color: var(--color-text-secondary);
    background: var(--color-bg-secondary);
}
.api-key-row .btn-icon-text {
    padding: 8px;
    min-width: unset;
    flex-shrink: 0;
}

/* === Settings: labeled inputs === */
.labeled-input {
    display: flex;
    flex-direction: column;
    gap: 2px;
    flex: 1;
    min-width: 0;
}
.labeled-input .input-label {
    font-size: var(--text-xs);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-tertiary);
}
.charger-settings-group {
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-border-primary);
}

/* === Settings: OCPP config reference table === */
.ocpp-config-table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--text-sm);
    margin-top: var(--spacing-sm);
}
.ocpp-config-table th,
.ocpp-config-table td {
    text-align: left;
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 1px solid var(--color-border-primary);
}
.ocpp-config-table th {
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-secondary);
}
.ocpp-config-table code {
    font-size: var(--text-xs);
    background: var(--color-bg-tertiary);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
}