:root {
    --bg-dark: #0f1216;
    --bg-card: #161b22;
    --bg-input: #21262d;
    --border: #30363d;
    --text: #e6edf3;
    --text-muted: #8b949e;
    --accent: #58a6ff;
    --accent-hover: #79b8ff;
    --success: #3fb950;
    --warning: #d29922;
    --error: #f85149;
    --radius: 12px;
    --shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

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

body {
    font-family: 'Manrope', -apple-system, sans-serif;
    background: var(--bg-dark);
    color: var(--text);
    min-height: 100vh;
    line-height: 1.6;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

nav {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    padding: 1rem 0;
}

nav .container {
    display: flex;
    align-items: center;
    gap: 2rem;
}

nav a {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

nav a:hover,
nav a.active {
    color: var(--accent);
}

nav .brand {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text);
}

.nav-inner {
    flex-wrap: wrap;
    row-gap: 0.5rem;
}

.nav-spacer {
    flex: 1;
    min-width: 1rem;
}

.nav-user {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.nav-logout-form {
    display: inline;
    margin: 0;
}

.nav-logout-btn {
    display: inline;
    background: none;
    border: none;
    padding: 0;
    font: inherit;
    font-weight: 500;
    color: var(--text-muted);
    cursor: pointer;
    text-decoration: none;
}

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

.login-header {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    padding: 1rem 0;
}

.login-header .brand {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text);
}

.login-card {
    max-width: 480px;
    margin-left: auto;
    margin-right: auto;
}

.login-form input[type="text"],
.login-form input[type="password"] {
    width: 100%;
    max-width: 100%;
    padding: 0.65rem 0.85rem;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--bg-input);
    color: var(--text);
    font: inherit;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow);
}

.card h1 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--text);
}

.card-intro {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.card-intro--spaced {
    margin-bottom: 2rem;
}

.form-row--gap-lg {
    gap: 1.5rem;
}

.btn--cta {
    padding: 1rem 2rem;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.form-row {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.25rem;
}

.form-row--actions {
    margin-top: 2rem;
}

.form-group {
    flex: 1;
    min-width: 180px;
}

.form-group--wide {
    flex: 2;
    min-width: 220px;
}

.form-group--comm {
    min-width: 140px;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 0.4rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.6rem 0.9rem;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    font-family: inherit;
    font-size: 0.95rem;
}

.form-group input[type="number"]::-webkit-inner-spin-button,
.form-group input[type="number"]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.form-group input[type="number"] {
    -moz-appearance: textfield;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
    opacity: 0.7;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.65rem 1.4rem;
    border-radius: 8px;
    font-family: inherit;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    border: none;
    transition: background 0.2s, transform 0.1s;
}

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

a.btn {
    text-decoration: none;
}

.success-title {
    color: var(--success);
}

.btn-primary {
    background: var(--accent);
    color: #fff;
}

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

.btn-secondary {
    background: var(--bg-input);
    color: var(--text);
    border: 1px solid var(--border);
}

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

.messages {
    margin-bottom: 1.5rem;
}

.message {
    padding: 0.9rem 1.2rem;
    border-radius: 8px;
    margin-bottom: 0.5rem;
}

.message.success {
    background: rgba(63, 185, 80, 0.15);
    color: var(--success);
    border: 1px solid rgba(63, 185, 80, 0.3);
}

.message.error {
    background: rgba(248, 81, 73, 0.15);
    color: var(--error);
    border: 1px solid rgba(248, 81, 73, 0.3);
}

.message.warning {
    background: rgba(210, 153, 34, 0.15);
    color: var(--warning);
    border: 1px solid rgba(210, 153, 34, 0.3);
}

.help-text {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

.help-text--error {
    color: var(--error);
}

.form-section {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
}

.form-section-title {
    font-size: 1rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

/* Combobox + цвет сервера рядом с выбранным значением */
.combobox-with-swatch {
    display: flex;
    align-items: center;
    gap: 0.55rem;
}

.combobox-with-swatch > .combobox-wrap {
    flex: 1;
    min-width: 0;
}

.combobox-value-swatch {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    flex-shrink: 0;
    box-sizing: border-box;
    border: 1px solid rgba(255, 255, 255, 0.24);
}

.combobox-value-swatch[hidden] {
    display: none !important;
}

/* Combobox */
.combobox-wrap {
    position: relative;
    width: 100%;
}

.combobox-input {
    width: 100%;
    padding: 0.6rem 2rem 0.6rem 0.9rem;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    font-family: inherit;
    font-size: 0.95rem;
    cursor: pointer;
}

.combobox-input:focus {
    outline: none;
    border-color: var(--accent);
}

.combobox-wrap.combobox-strict .combobox-input[readonly] {
    cursor: pointer;
}

.combobox-wrap:not(.combobox-strict) .combobox-input:not([readonly]) {
    cursor: text;
}

.combobox-arrow {
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
    color: var(--text-muted);
    font-size: 0.8rem;
}

.combobox-dropdown {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    margin-top: 2px;
    max-height: 220px;
    overflow-y: auto;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    box-shadow: var(--shadow);
    z-index: 100;
    display: none;
    scrollbar-width: thin;
    scrollbar-gutter: stable;
    scrollbar-color: rgba(245, 240, 240, 0.06) transparent;
}

.combobox-dropdown.open {
    display: block;
}

.combobox-option {
    padding: 0.5rem 0.9rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.combobox-option:hover,
.combobox-option.highlight {
    background: var(--bg-input);
}

.combobox-option-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

.combobox-option-dot--border {
    box-sizing: border-box;
    border: 1px solid rgba(255, 255, 255, 0.22);
}

.combobox-option--server {
    align-items: flex-start;
    white-space: normal;
    gap: 0.65rem;
}

.combobox-option--server .combobox-option-dot {
    margin-top: 0.35rem;
}

.combobox-option-server-meta {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
    min-width: 0;
}

.combobox-option--server .combobox-option-title {
    font-weight: 600;
    line-height: 1.3;
}

.combobox-option--server .combobox-option-ip {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-family: 'JetBrains Mono', monospace;
    line-height: 1.2;
}

.form-row--new-option-server[hidden] {
    display: none !important;
}

@media (max-width: 600px) {
    .form-row {
        flex-direction: column;
    }

    .form-group {
        min-width: 100%;
    }
}