/* ============================
   Design Tokens
   ============================ */
:root {
    --bg-body: #0a0a0f;
    --bg-card: #0f0f1a;
    --bg-input: #1a1a2e;
    --bg-tag: #374151;

    --accent-green: #00ff9f;
    --accent-cyan: #00d4ff;
    --accent-red: #ff4d6a;
    --accent-yellow: #fbbf24;
    --accent-orange: #f97316;
    --accent-amber: #f59e0b;

    --green-30: rgba(0, 255, 159, 0.3);
    --green-80: rgba(0, 255, 159, 0.8);
    --green-glow: 0 0 20px rgba(0, 255, 159, 0.3);
    --cyan-30: rgba(0, 212, 255, 0.3);
    --red-30: rgba(255, 77, 106, 0.3);

    --text-primary: #f1f1f1;
    --text-secondary: #d1d5db;
    --text-muted: #9ca3af;
    --text-dim: #6b7280;

    --border-subtle: #374151;
    --border: #374151;
    --radius: 6px;
    --accent-secondary: #6c5ce7;

    --font-body: 'JetBrains Mono', monospace;
    --font-heading: 'Orbitron', monospace;
}

/* ============================
   Reset & Base
   ============================ */
* { margin: 0; padding: 0; box-sizing: border-box; }

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

/* ============================
   Login Page
   ============================ */
.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    width: 100%;
    position: relative;
    z-index: 10;
}

.login-box {
    background: var(--bg-card);
    border: 1px solid var(--green-30);
    padding: 2.5rem;
    width: 380px;
    max-width: 90vw;
}

.login-logo-img {
    display: block;
    margin: 0 auto 0.75rem;
    width: 220px;
    max-width: 80%;
    height: auto;
    filter: drop-shadow(0 0 12px rgba(0, 255, 159, 0.3));
}

.login-sub {
    font-size: 0.65rem;
    color: var(--text-dim);
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 2rem;
}

.login-error {
    background: rgba(255, 77, 106, 0.1);
    border: 1px solid var(--red-30);
    color: var(--accent-red);
    font-size: 0.75rem;
    padding: 0.6rem 0.85rem;
    margin-bottom: 1rem;
    display: none;
}

.login-error.visible {
    display: block;
}

/* ============================
   Animated Background Grid
   ============================ */
.bg-grid {
    position: fixed;
    inset: 0;
    opacity: 0.15;
    pointer-events: none;
    background-image:
        linear-gradient(rgba(0, 255, 159, 0.1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 255, 159, 0.1) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: gridMove 20s linear infinite;
    z-index: 0;
}

@keyframes gridMove {
    0% { transform: translateY(0) translateX(0); }
    100% { transform: translateY(50px) translateX(50px); }
}

/* ============================
   Sidebar
   ============================ */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: 240px;
    background: var(--bg-card);
    border-right: 1px solid var(--green-30);
    z-index: 50;
    display: flex;
    flex-direction: column;
    padding: 0;
}

.sidebar-header {
    padding: 1.25rem 1.25rem 1rem;
    border-bottom: 1px solid var(--border-subtle);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.sidebar-logo-img {
    display: block;
    width: 210px;
    max-width: 100%;
    height: auto;
    filter: drop-shadow(0 0 8px rgba(0, 255, 159, 0.25));
}

.sidebar-logo-sub {
    font-size: 0.55rem;
    color: var(--text-dim);
    margin-top: 0.5rem;
    font-weight: 400;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    opacity: 0.6;
}

.sidebar-nav {
    flex: 1;
    padding: 1rem 0;
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1.25rem;
    color: var(--text-muted);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    cursor: pointer;
    border-left: 3px solid transparent;
    transition: all 0.2s;
}

.nav-item:hover {
    color: var(--text-secondary);
    background: rgba(0, 255, 159, 0.03);
}

.nav-item.active {
    color: var(--accent-green);
    border-left-color: var(--accent-green);
    background: rgba(0, 255, 159, 0.06);
}

.nav-item svg {
    width: 18px;
    height: 18px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
    flex-shrink: 0;
    overflow: visible;
}

.nav-item.admin-only {
    display: none;
}

.sidebar-footer {
    padding: 1rem 1.25rem;
    border-top: 1px solid var(--border-subtle);
}

.sidebar-user {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.75rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-subtle);
}

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

.sidebar-role {
    font-size: 0.6rem;
    color: var(--accent-green);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.btn-logout {
    background: none;
    border: none;
    color: var(--text-dim);
    cursor: pointer;
    font-size: 0.65rem;
    font-family: var(--font-body);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.25rem 0.5rem;
    transition: color 0.2s;
}

.btn-logout:hover {
    color: var(--accent-red);
}

.tunnel-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    position: relative;
    cursor: default;
}

/* Health tooltip (hover popover) */
.health-tooltip {
    display: none;
    position: absolute;
    bottom: calc(100% + 8px);
    left: 0;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.5rem 0.75rem;
    font-size: 0.75rem;
    white-space: nowrap;
    z-index: 100;
    box-shadow: 0 4px 16px rgba(0,0,0,0.5);
}

.tunnel-status:hover .health-tooltip {
    display: block;
    animation: tooltipFadeIn 0.15s ease-out;
}

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

.health-row {
    padding: 0.15rem 0;
    color: var(--text-secondary);
}

.h-ok {
    color: var(--accent-green);
    font-weight: 700;
    margin-right: 0.35rem;
}

.h-fail {
    color: var(--accent-red);
    font-weight: 700;
    margin-right: 0.35rem;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent-green);
    box-shadow: 0 0 8px var(--accent-green);
    animation: statusPulse 2s infinite;
}

.status-dot.status-green {
    background: var(--accent-green);
    box-shadow: 0 0 8px var(--accent-green);
}

.status-dot.status-red {
    background: var(--accent-red);
    box-shadow: 0 0 8px var(--accent-red);
}

.status-dot.status-amber {
    background: var(--accent-amber);
    box-shadow: 0 0 8px var(--accent-amber);
}

/* Inline status dot (for page subtitles) */
.caddy-status {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    margin-left: 0.75rem;
    font-size: 0.7rem;
    vertical-align: middle;
}

.status-dot-inline {
    display: inline-block;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--text-dim);
}

.status-dot-inline.status-green {
    background: var(--accent-green);
    box-shadow: 0 0 6px var(--accent-green);
}

.status-dot-inline.status-red {
    background: var(--accent-red);
    box-shadow: 0 0 6px var(--accent-red);
}

@keyframes statusPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.tunnel-status-label {
    color: var(--accent-green);
    font-weight: 600;
}

.tunnel-status-sub {
    font-size: 0.65rem;
    color: var(--text-dim);
    margin-top: 0.25rem;
}

/* ============================
   Main Content
   ============================ */
.main {
    margin-left: 240px;
    flex: 1;
    position: relative;
    z-index: 10;
    padding: 2rem;
    min-height: 100vh;
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.page-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    text-shadow: 1px 1px 0px rgba(0, 255, 159, 0.2);
}

.page-subtitle {
    font-size: 0.75rem;
    color: var(--text-dim);
    margin-top: 0.25rem;
    font-family: var(--font-body);
    font-weight: 400;
}

.terminal-line {
    color: var(--accent-green);
    font-size: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.terminal-cursor::after {
    content: '\2588';
    animation: pulse 1s infinite;
    color: var(--accent-green);
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* ============================
   Cards
   ============================ */
.card {
    background: var(--bg-card);
    border: 1px solid var(--green-30);
    padding: 1.25rem;
    transition: all 0.3s;
}

.card:hover {
    border-color: var(--green-80);
    box-shadow: var(--green-glow);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.card-title {
    font-size: 0.75rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 600;
}

.card-icon svg {
    width: 16px;
    height: 16px;
    stroke: var(--accent-green);
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
    overflow: visible;
}

.card-value {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1;
}

.card-sub {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

/* ============================
   Progress Bars
   ============================ */
.progress-bar {
    width: 100%;
    height: 6px;
    background: var(--border-subtle);
    border-radius: 9999px;
    overflow: hidden;
    margin-top: 0.75rem;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-green), var(--accent-cyan));
    border-radius: 9999px;
    box-shadow: 0 0 10px rgba(0, 255, 159, 0.5);
    transition: width 1s ease-out;
}

/* ============================
   Dashboard Layout
   ============================ */
.stats-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.charts-row {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.info-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

/* ============================
   Chart Area
   ============================ */
.chart-container {
    width: 100%;
    height: 200px;
    position: relative;
}

.chart-canvas {
    width: 100%;
    height: 100%;
}

.chart-legend {
    display: flex;
    gap: 1.25rem;
    margin-top: 0.75rem;
    font-size: 0.7rem;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--text-muted);
}

.legend-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

/* ============================
   WireGuard Info
   ============================ */
.wg-info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

.wg-stat {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}

.wg-stat-label {
    font-size: 0.65rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.wg-stat-value {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.wg-stat-value.green { color: var(--accent-green); }
.wg-stat-value.cyan { color: var(--accent-cyan); }

/* ============================
   Tables
   ============================ */
.table-wrapper {
    overflow-x: auto;
}

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

thead th {
    font-size: 0.7rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 600;
    text-align: left;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-subtle);
}

tbody td {
    font-size: 0.8rem;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid rgba(55, 65, 81, 0.5);
    color: var(--text-secondary);
}

tbody tr {
    transition: background 0.15s;
}

tbody tr:hover {
    background: rgba(0, 255, 159, 0.03);
}

/* ============================
   Badges & Tags
   ============================ */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.7rem;
    padding: 0.2rem 0.6rem;
    font-weight: 600;
    border-radius: 0.2rem;
}

.badge-active {
    background: var(--accent-green);
    color: #000;
}

.badge-disabled {
    background: var(--bg-tag);
    color: var(--text-muted);
}

.badge-tcp {
    background: rgba(0, 212, 255, 0.15);
    color: var(--accent-cyan);
    border: 1px solid rgba(0, 212, 255, 0.3);
}

.badge-udp {
    background: rgba(251, 191, 36, 0.15);
    color: var(--accent-yellow);
    border: 1px solid rgba(251, 191, 36, 0.3);
}

.badge-tls {
    background: rgba(0, 255, 159, 0.1);
    color: var(--accent-green);
    border: 1px solid var(--green-30);
}

/* ============================
   Buttons
   ============================ */
.btn {
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.6rem 1.1rem;
    border: 1px solid var(--green-30);
    background: var(--bg-card);
    color: var(--accent-green);
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.btn:hover {
    border-color: var(--green-80);
    box-shadow: var(--green-glow);
    background: var(--bg-input);
}

.btn-primary {
    background: var(--accent-green);
    color: #000;
    border-color: var(--accent-green);
}

.btn-primary:hover {
    background: #33ffb3;
    box-shadow: var(--green-glow);
}

.btn-danger {
    border-color: var(--red-30);
    color: var(--accent-red);
}

.btn-danger:hover {
    border-color: var(--accent-red);
    box-shadow: 0 0 20px rgba(255, 77, 106, 0.3);
}

.btn-sm {
    padding: 0.35rem 0.65rem;
    font-size: 0.65rem;
}

.btn svg {
    width: 14px;
    height: 14px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
    overflow: visible;
}

.actions-cell {
    display: flex;
    gap: 0.4rem;
}

/* ============================
   Modals
   ============================ */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: all;
}

.modal {
    background: var(--bg-card);
    border: 1px solid var(--green-30);
    width: 480px;
    max-width: 90vw;
    transform: translateY(20px);
    transition: transform 0.2s;
}

.modal-overlay.active .modal {
    transform: translateY(0);
}

.modal-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-subtle);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-title {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 700;
    color: var(--accent-green);
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-dim);
    cursor: pointer;
    font-size: 1.25rem;
    font-family: var(--font-body);
    transition: color 0.2s;
}

.modal-close:hover { color: var(--accent-red); }

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-subtle);
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
}

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

.form-label {
    display: block;
    font-size: 0.7rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 600;
    margin-bottom: 0.4rem;
}

.form-input {
    width: 100%;
    font-family: var(--font-body);
    font-size: 0.8rem;
    padding: 0.6rem 0.85rem;
    background: var(--bg-input);
    border: 1px solid var(--border-subtle);
    color: var(--text-primary);
    outline: none;
    transition: border-color 0.2s;
}

.form-input:focus {
    border-color: var(--accent-green);
    box-shadow: 0 0 0 1px rgba(0, 255, 159, 0.2);
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-select {
    width: 100%;
    font-family: var(--font-body);
    font-size: 0.8rem;
    padding: 0.6rem 0.85rem;
    background: var(--bg-input);
    border: 1px solid var(--border-subtle);
    color: var(--text-primary);
    outline: none;
    appearance: none;
    cursor: pointer;
}

.form-select:focus {
    border-color: var(--accent-green);
}

.form-toggle {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.toggle {
    position: relative;
    width: 36px;
    height: 20px;
    background: var(--border-subtle);
    border-radius: 10px;
    cursor: pointer;
    transition: background 0.2s;
}

.toggle.on {
    background: var(--accent-green);
}

.toggle::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    background: var(--text-primary);
    border-radius: 50%;
    top: 2px;
    left: 2px;
    transition: transform 0.2s;
}

.toggle.on::after {
    transform: translateX(16px);
}

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

/* ============================
   Activity Log
   ============================ */
.log-list {
    display: flex;
    flex-direction: column;
}

.log-entry {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 0.85rem 1rem;
    border-bottom: 1px solid rgba(55, 65, 81, 0.4);
    transition: background 0.15s;
}

.log-entry:hover {
    background: rgba(0, 255, 159, 0.02);
}

.log-time {
    font-size: 0.7rem;
    color: var(--text-dim);
    white-space: nowrap;
    min-width: 140px;
    padding-top: 0.1rem;
}

.log-action-badge {
    font-size: 0.65rem;
    font-weight: 600;
    padding: 0.15rem 0.5rem;
    border-radius: 0.15rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    white-space: nowrap;
    min-width: 70px;
    text-align: center;
}

.log-action-create {
    background: rgba(0, 255, 159, 0.12);
    color: var(--accent-green);
}

.log-action-delete {
    background: rgba(255, 77, 106, 0.12);
    color: var(--accent-red);
}

.log-action-update {
    background: rgba(0, 212, 255, 0.12);
    color: var(--accent-cyan);
}

.log-action-toggle {
    background: rgba(251, 191, 36, 0.12);
    color: var(--accent-yellow);
}

.log-action-login {
    background: rgba(0, 255, 159, 0.08);
    color: var(--accent-green);
}

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

.log-target {
    color: var(--accent-green);
    font-weight: 600;
}

.log-user {
    font-size: 0.7rem;
    color: var(--text-dim);
    min-width: 80px;
}

/* ============================
   View Sections
   ============================ */
.view {
    display: none;
}

.view.active {
    display: block;
    animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ============================
   Stat Animations
   ============================ */
@keyframes slideIn {
    from { opacity: 0; transform: translateX(-20px); }
    to { opacity: 1; transform: translateX(0); }
}

.stats-row .card { animation: slideIn 0.5s ease-out both; }
.stats-row .card:nth-child(2) { animation-delay: 0.1s; }
.stats-row .card:nth-child(3) { animation-delay: 0.2s; }
.stats-row .card:nth-child(4) { animation-delay: 0.3s; }

/* ============================
   Empty State
   ============================ */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-dim);
}

.empty-state svg {
    width: 48px;
    height: 48px;
    stroke: var(--border-subtle);
    fill: none;
    stroke-width: 1.5;
    margin-bottom: 1rem;
}

.empty-state p {
    font-size: 0.8rem;
    margin-bottom: 0.5rem;
}

/* ============================
   Pagination
   ============================ */
.pagination {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem;
}

/* ============================
   Responsive
   ============================ */
@media (max-width: 1024px) {
    .stats-row { grid-template-columns: repeat(2, 1fr); }
    .charts-row { grid-template-columns: 1fr; }
    .info-row { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .sidebar { width: 60px; }
    .sidebar .nav-item span,
    .sidebar-logo-sub,
    .sidebar-logo-img,
    .tunnel-status-label,
    .tunnel-status-sub,
    .sidebar-user { display: none; }
    .sidebar-header { padding: 1rem 0.75rem; text-align: center; }
    .sidebar .nav-item { padding: 0.75rem; justify-content: center; }
    .main { margin-left: 60px; padding: 1rem; }
    .stats-row { grid-template-columns: 1fr; }
    .page-title { font-size: 1.15rem; }
    .settings-grid { grid-template-columns: 1fr; }
}

/* ═══════════════════════════════════════════════════════════════════
   Settings Page
   ═══════════════════════════════════════════════════════════════════ */

.settings-card {
    margin-bottom: 1.25rem;
}

.settings-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.settings-divider {
    height: 1px;
    background: var(--border);
    margin: 1.25rem 0;
}

.settings-section-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent-cyan);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 1rem;
}

.settings-hint {
    margin-top: 0.75rem;
    font-size: 0.72rem;
    color: var(--accent-yellow);
    opacity: 0.8;
}

.settings-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    margin-top: 0.5rem;
    margin-bottom: 2rem;
}

/* Save button animation states */
.btn-saving {
    opacity: 0.8;
    pointer-events: none;
}

.btn-spinner {
    display: inline-block;
    width: 14px;
    height: 14px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: btnSpin 0.6s linear infinite;
    vertical-align: middle;
}

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

.btn-saved {
    background: var(--accent-green) !important;
    border-color: var(--accent-green) !important;
    color: #000 !important;
    animation: btnPop 0.3s ease-out;
}

.btn-save-error {
    background: var(--accent-red) !important;
    border-color: var(--accent-red) !important;
    color: #fff !important;
    animation: btnShake 0.4s ease-out;
}

@keyframes btnPop {
    0%   { transform: scale(1); }
    50%  { transform: scale(1.08); }
    100% { transform: scale(1); }
}

@keyframes btnShake {
    0%, 100% { transform: translateX(0); }
    20%      { transform: translateX(-4px); }
    40%      { transform: translateX(4px); }
    60%      { transform: translateX(-3px); }
    80%      { transform: translateX(3px); }
}

.settings-mapping {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.mapping-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.mapping-row .mapping-group {
    flex: 2;
    min-width: 0;
}

.mapping-row .mapping-role {
    flex: 1;
    min-width: 120px;
}

.mapping-row .mapping-arrow {
    color: var(--accent-green);
    font-size: 0.8rem;
    white-space: nowrap;
    flex-shrink: 0;
}

.mapping-row .btn-remove-mapping {
    background: transparent;
    border: 1px solid var(--accent-red);
    color: var(--accent-red);
    width: 28px;
    height: 28px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1rem;
    line-height: 1;
    padding: 0;
    transition: all 0.2s;
}
.mapping-row .btn-remove-mapping:hover {
    background: rgba(255, 77, 106, 0.15);
}