:root {
    --bg: rgba(10, 12, 18, 0.92);
    --surface: rgba(22, 27, 38, 0.96);
    --surface-hover: rgba(32, 40, 56, 0.98);
    --border: rgba(255, 255, 255, 0.08);
    --border-strong: rgba(255, 255, 255, 0.14);
    --text: #f3f6fb;
    --text-muted: #8b97ad;
    --primary: #22d3ee;
    --primary-rgb: 34, 211, 238;
    --primary-dark: #06b6d4;
    --primary-deeper: #0891b2;
    --primary-ink: #051a1f;
    --on-primary: #031014;
    --panel-bg-top: rgba(28, 34, 48, 0.94);
    --danger: #ef4444;
    --danger-rgb: 239, 68, 68;
    --success: #22c55e;
    --warning: #f59e0b;
    --info: #38bdf8;
    --shadow: 0 28px 90px rgba(0, 0, 0, 0.5);
    --radius: 20px;
    --radius-sm: 12px;
    --radius-xs: 8px;
}

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

html, body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    font-family: Inter, "Segoe UI", system-ui, sans-serif;
    color: var(--text);
    background: none !important;
    background-color: rgba(0, 0, 0, 0) !important;
    user-select: none;
}

#app {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    background: none !important;
    background-color: rgba(0, 0, 0, 0) !important;
    overflow: visible;
}

.hidden {
    display: none !important;
}

.panel {
    position: fixed;
    top: 50%;
    right: 3vw;
    transform: translateY(-50%);
    width: min(440px, 94vw);
    height: fit-content;
    pointer-events: auto;
    background: linear-gradient(165deg, var(--panel-bg-top) 0%, rgba(12, 15, 22, 0.97) 100%);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow), inset 0 1px 0 rgba(255, 255, 255, 0.04);
    animation: slideIn 0.28s cubic-bezier(0.22, 1, 0.36, 1);
    overflow: hidden;
}

.panel-modal {
    right: 50%;
    transform: translate(50%, -50%);
    width: min(480px, 94vw);
    animation-name: fadeUp;
}

.panel-accent {
    height: 3px;
    background: linear-gradient(90deg, var(--primary-deeper), var(--primary), var(--primary-dark));
}

.panel-accent-danger {
    background: linear-gradient(90deg, #b91c1c, var(--danger), #f87171);
}

.panel-glow {
    position: absolute;
    top: 0;
    right: 0;
    width: 180px;
    height: 180px;
    background: radial-gradient(circle, rgba(var(--primary-rgb), 0.12) 0%, transparent 70%);
    pointer-events: none;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-50%) translateX(28px) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateY(-50%) translateX(0) scale(1);
    }
}

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translate(50%, calc(-50% + 20px)) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translate(50%, -50%) scale(1);
    }
}

@keyframes optionIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.panel-header {
    position: relative;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 14px;
    padding: 22px 22px 16px;
    border-bottom: 1px solid var(--border);
}

.panel-brand {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    min-width: 0;
}

.panel-brand-icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    display: grid;
    place-items: center;
    flex-shrink: 0;
    font-size: 1.15rem;
    color: var(--primary);
    background: linear-gradient(145deg, rgba(var(--primary-rgb), 0.18), rgba(var(--primary-rgb), 0.06));
    border: 1px solid rgba(var(--primary-rgb), 0.28);
    box-shadow: 0 8px 24px rgba(var(--primary-rgb), 0.12);
}

.panel-brand-icon-sm {
    width: 42px;
    height: 42px;
    font-size: 1rem;
}

.panel-brand-icon-danger {
    color: var(--danger);
    background: linear-gradient(145deg, rgba(var(--danger-rgb), 0.18), rgba(var(--danger-rgb), 0.06));
    border-color: rgba(var(--danger-rgb), 0.28);
    box-shadow: 0 8px 24px rgba(var(--danger-rgb), 0.12);
}

.panel-header-text {
    min-width: 0;
}

.panel-header-text h1 {
    font-size: 1.35rem;
    font-weight: 700;
    line-height: 1.25;
    margin-top: 8px;
    letter-spacing: -0.02em;
}

.panel-subtitle {
    margin-top: 4px;
    font-size: 0.78rem;
    color: var(--text-muted);
    line-height: 1.4;
}

.panel-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.62rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--primary);
    background: rgba(var(--primary-rgb), 0.1);
    border: 1px solid rgba(var(--primary-rgb), 0.22);
    padding: 5px 10px;
    border-radius: 999px;
}

.panel-badge-danger {
    color: var(--danger);
    background: rgba(var(--danger-rgb), 0.1);
    border-color: rgba(var(--danger-rgb), 0.22);
}

.panel-body {
    padding: 14px 18px 18px;
    overflow: hidden;
}

.menu-toolbar {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 12px;
}

.menu-search {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0 14px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    background: rgba(0, 0, 0, 0.25);
    color: var(--text-muted);
}

.menu-search:focus-within {
    border-color: rgba(var(--primary-rgb), 0.45);
    box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.1);
}

.menu-search i {
    font-size: 0.85rem;
    color: var(--primary);
}

.menu-search input {
    flex: 1;
    border: none;
    background: transparent;
    color: var(--text);
    font-size: 0.88rem;
    padding: 12px 0;
    outline: none;
}

.menu-search input::placeholder {
    color: var(--text-muted);
}

.menu-nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.btn-nav {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.04);
    color: var(--text);
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: 0.18s ease;
}

.btn-nav:hover {
    background: rgba(var(--primary-rgb), 0.08);
    border-color: rgba(var(--primary-rgb), 0.28);
    color: var(--primary);
}

.menu-empty {
    padding: 24px 12px;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.84rem;
    border: 1px dashed var(--border);
    border-radius: var(--radius-sm);
    margin-bottom: 10px;
}

.panel-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    padding: 0 18px 18px;
}

.icon-btn {
    width: 36px;
    height: 36px;
    border: 1px solid var(--border);
    border-radius: 11px;
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-muted);
    cursor: pointer;
    transition: 0.18s ease;
    flex-shrink: 0;
}

.icon-btn:hover {
    color: var(--text);
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(var(--primary-rgb), 0.3);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border: none;
    border-radius: var(--radius-sm);
    padding: 11px 18px;
    font-size: 0.88rem;
    font-weight: 600;
    cursor: pointer;
    transition: 0.18s ease;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--on-primary);
    box-shadow: 0 8px 24px rgba(var(--primary-rgb), 0.25);
}

.btn-primary:hover {
    filter: brightness(1.08);
    transform: translateY(-1px);
}

.btn-ghost {
    background: rgba(255, 255, 255, 0.04);
    color: var(--text);
    border: 1px solid var(--border);
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.08);
}

.btn-danger {
    background: linear-gradient(135deg, #ef4444, #dc2626);
    color: white;
    box-shadow: 0 8px 24px rgba(var(--danger-rgb), 0.25);
}

.option-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.option-item {
    position: relative;
    display: flex;
    align-items: center;
    gap: 14px;
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.025);
    color: var(--text);
    text-align: left;
    cursor: pointer;
    transition: 0.18s ease;
    overflow: hidden;
    animation: optionIn 0.32s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.option-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--primary);
    opacity: 0;
    transition: 0.18s ease;
}

.option-item:hover:not(.disabled):not(.readonly) {
    background: rgba(var(--primary-rgb), 0.06);
    border-color: rgba(var(--primary-rgb), 0.28);
    transform: translateX(-3px);
}

.option-item:hover:not(.disabled):not(.readonly)::before {
    opacity: 0.5;
}

.option-item.active {
    background: linear-gradient(90deg, rgba(var(--primary-rgb), 0.14), rgba(var(--primary-rgb), 0.04));
    border-color: rgba(var(--primary-rgb), 0.45);
    box-shadow: 0 0 0 1px rgba(var(--primary-rgb), 0.1), 0 8px 24px rgba(var(--primary-rgb), 0.08);
    transform: translateX(-3px);
}

.option-item.active::before {
    opacity: 1;
}

.option-item.disabled,
.option-item.readonly {
    opacity: 0.5;
    cursor: default;
}

.option-item.variant-toggle.active {
    background: linear-gradient(90deg, rgba(var(--primary-rgb), 0.18), rgba(var(--primary-rgb), 0.05));
}

.option-icon {
    width: 42px;
    height: 42px;
    border-radius: 11px;
    display: grid;
    place-items: center;
    background: rgba(var(--primary-rgb), 0.1);
    color: var(--primary);
    flex-shrink: 0;
    font-size: 0.95rem;
    border: 1px solid rgba(var(--primary-rgb), 0.15);
}

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

.option-title {
    font-size: 0.92rem;
    font-weight: 600;
    margin-bottom: 4px;
    letter-spacing: -0.01em;
}

.option-description {
    font-size: 0.76rem;
    color: var(--text-muted);
    line-height: 1.45;
    word-break: break-word;
}

.option-arrow {
    width: 28px;
    height: 28px;
    border-radius: 999px;
    display: grid;
    place-items: center;
    color: var(--text-muted);
    font-size: 0.7rem;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border);
    flex-shrink: 0;
    transition: 0.18s ease;
}

.option-item:hover:not(.disabled):not(.readonly) .option-arrow,
.option-item.active .option-arrow {
    color: var(--primary);
    background: rgba(var(--primary-rgb), 0.12);
    border-color: rgba(var(--primary-rgb), 0.25);
}

.input-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.field-group label {
    display: block;
    font-size: 0.82rem;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--text);
}

.field-group small {
    display: block;
    color: var(--text-muted);
    font-size: 0.74rem;
    margin-bottom: 10px;
    line-height: 1.4;
}

.field-group input {
    width: 100%;
    padding: 13px 15px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    background: rgba(0, 0, 0, 0.25);
    color: var(--text);
    font-size: 0.95rem;
    outline: none;
    transition: 0.18s ease;
    appearance: textfield;
    -moz-appearance: textfield;
}

.field-group input::-webkit-outer-spin-button,
.field-group input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.field-group input:focus {
    border-color: rgba(var(--primary-rgb), 0.5);
    box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.12);
    background: rgba(0, 0, 0, 0.35);
}

.alert-content {
    color: var(--text-muted);
    line-height: 1.6;
    white-space: pre-line;
    font-size: 0.9rem;
    padding: 4px 2px;
}