:root {
    --bg: #070b12;
    --bg-elevated: #0f1520;
    --bg-card: #141c28;
    --border: #243044;
    --border-soft: #1a2433;
    --text: #eef2f7;
    --text-muted: #8b9cb0;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --accent-glow: rgba(59, 130, 246, 0.25);
    --success: #22c55e;
    --success-bg: rgba(34, 197, 94, 0.12);
    --danger: #f87171;
    --danger-bg: rgba(248, 113, 113, 0.12);
    --warning: #fbbf24;
    --radius: 14px;
    --radius-sm: 10px;
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
    --font: "Inter", "Segoe UI", system-ui, sans-serif;
    --mono: "JetBrains Mono", "Cascadia Code", ui-monospace, monospace;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.55;
    min-height: 100vh;
    background-image:
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(59, 130, 246, 0.15), transparent),
        radial-gradient(ellipse 60% 40% at 100% 0%, rgba(99, 102, 241, 0.08), transparent);
}

/* ——— Login ——— */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
}

.login-card {
    width: 100%;
    max-width: 420px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2.25rem;
    box-shadow: var(--shadow);
}

.login-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.5rem;
}

.login-brand .logo {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--accent), #6366f1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.login-card h1 { font-size: 1.35rem; font-weight: 700; letter-spacing: -0.02em; }

.subtitle { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 1.5rem; }

/* ——— Header ——— */
.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-soft);
    background: rgba(15, 21, 32, 0.85);
    backdrop-filter: blur(12px);
    position: sticky;
    top: 0;
    z-index: 100;
    flex-wrap: wrap;
    gap: 1rem;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.85rem;
}

.brand .logo {
    width: 40px;
    height: 40px;
    border-radius: 11px;
    background: linear-gradient(135deg, var(--accent), #6366f1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    box-shadow: 0 4px 16px var(--accent-glow);
}

.brand h1 {
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.brand .host-hint {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-top: 0.1rem;
}

.brand .host-hint code {
    font-family: var(--mono);
    font-size: 0.72rem;
    color: #7eb8ff;
    background: var(--bg);
    padding: 0.1rem 0.35rem;
    border-radius: 4px;
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    flex-wrap: wrap;
}

.badge {
    background: rgba(59, 130, 246, 0.15);
    color: #93c5fd;
    padding: 0.4rem 0.85rem;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 600;
    border: 1px solid rgba(59, 130, 246, 0.2);
}

.badge-green {
    background: var(--success-bg);
    color: var(--success);
    border-color: rgba(34, 197, 94, 0.25);
}

/* ——— Layout ——— */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.5rem;
}

.stats-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-sm);
    padding: 1rem 1.15rem;
}

.stat-card .label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    margin-bottom: 0.35rem;
}

.stat-card .value {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.03em;
}

.stat-card .value small {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-muted);
}

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 1.25rem;
    align-items: start;
}

@media (max-width: 900px) {
    .grid-2 { grid-template-columns: 1fr; }
}

/* ——— Cards ——— */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius);
    padding: 1.35rem 1.5rem;
    margin-bottom: 1.25rem;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
    gap: 0.5rem;
}

.card h2 {
    font-size: 1.05rem;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.card-icon {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: rgba(59, 130, 246, 0.12);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    margin-right: 0.65rem;
}

.card-title-row {
    display: flex;
    align-items: center;
}

.hint {
    color: var(--text-muted);
    font-size: 0.88rem;
    margin-bottom: 1rem;
    line-height: 1.5;
}

.hint code {
    font-family: var(--mono);
    font-size: 0.8rem;
    background: var(--bg);
    padding: 0.12rem 0.4rem;
    border-radius: 5px;
    color: #7eb8ff;
}

/* ——— Forms ——— */
label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 0.4rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

input[type="text"],
input[type="password"] {
    width: 100%;
    padding: 0.7rem 0.9rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    background: var(--bg);
    color: var(--text);
    font-size: 0.95rem;
    transition: border-color 0.15s, box-shadow 0.15s;
}

input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

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

@media (max-width: 600px) {
    .form-grid { grid-template-columns: 1fr; }
}

.form-actions { grid-column: 1 / -1; margin-top: 0.25rem; }

/* ——— Buttons ——— */
button, .btn, .btn-primary, .btn-small, .btn-ghost, .btn-danger {
    cursor: pointer;
    border: none;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-family: inherit;
    font-size: 0.875rem;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    transition: background 0.15s, transform 0.1s, box-shadow 0.15s;
}

button:active { transform: scale(0.98); }

.btn-primary {
    background: linear-gradient(135deg, var(--accent), #4f46e5);
    color: #fff;
    padding: 0.75rem 1.35rem;
    box-shadow: 0 4px 14px var(--accent-glow);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--accent-hover), #4338ca);
    box-shadow: 0 6px 20px var(--accent-glow);
}

.btn-ghost {
    background: transparent;
    color: var(--text-muted);
    border: 1px solid var(--border);
    padding: 0.5rem 1rem;
}

.btn-ghost:hover {
    background: var(--bg-elevated);
    color: var(--text);
}

.btn-small {
    background: var(--bg-elevated);
    color: #93c5fd;
    padding: 0.45rem 0.75rem;
    font-size: 0.8rem;
    border: 1px solid var(--border-soft);
}

.btn-small:hover {
    background: rgba(59, 130, 246, 0.15);
    border-color: rgba(59, 130, 246, 0.3);
}

.btn-danger {
    background: var(--danger-bg);
    color: var(--danger);
    border: 1px solid rgba(248, 113, 113, 0.25);
}

.btn-danger:hover { background: rgba(248, 113, 113, 0.2); }

.btn-icon {
    padding: 0.45rem 0.55rem;
    min-width: 36px;
}

/* ——— Users ——— */
.users-empty {
    text-align: center;
    padding: 2.5rem 1rem;
    color: var(--text-muted);
}

.users-empty .empty-icon {
    font-size: 2.5rem;
    margin-bottom: 0.75rem;
    opacity: 0.5;
}

.user-cards {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.user-card {
    background: var(--bg);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-sm);
    padding: 1.15rem;
    transition: border-color 0.15s;
}

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

.user-card.disabled {
    opacity: 0.65;
}

.user-card[data-online="true"] {
    border-color: rgba(34, 197, 94, 0.45);
    box-shadow: 0 0 0 1px rgba(34, 197, 94, 0.12), 0 4px 20px rgba(34, 197, 94, 0.08);
}

.user-identity {
    display: flex;
    align-items: flex-start;
    gap: 0.85rem;
}

.connection-status {
    margin-top: 0.35rem;
    font-size: 0.85rem;
    font-weight: 600;
}

.text-online { color: var(--success); }
.text-offline { color: var(--text-muted); font-weight: 500; }

/* Индикатор VPN: зелёный + свечение = в сети, серый без свечения = не в сети */
.led-indicator {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    flex-shrink: 0;
    margin-top: 0.2rem;
    background: #4b5563;
    border: 2px solid #374151;
    transition: background 0.25s, box-shadow 0.25s, border-color 0.25s;
}

.led-indicator-sm {
    width: 10px;
    height: 10px;
    margin-top: 0;
    border-width: 1.5px;
}

.led-indicator.led-on {
    background: #22c55e;
    border-color: #4ade80;
    box-shadow: 0 0 10px #22c55e, 0 0 20px rgba(34, 197, 94, 0.55);
    animation: led-glow 2s ease-in-out infinite;
}

.led-indicator.led-off {
    background: #3d4a5c;
    border-color: #2a3444;
    box-shadow: none;
    animation: none;
}

.led-indicator.led-disabled {
    background: #2a3444;
    border-color: #1f2937;
    box-shadow: none;
    opacity: 0.45;
    animation: none;
}

@keyframes led-glow {
    0%, 100% { box-shadow: 0 0 8px #22c55e, 0 0 16px rgba(34, 197, 94, 0.45); }
    50% { box-shadow: 0 0 14px #4ade80, 0 0 28px rgba(74, 222, 128, 0.65); }
}

.value-with-led {
    display: flex;
    align-items: center;
    gap: 0.65rem;
}

.value-with-led .led-indicator {
    width: 16px;
    height: 16px;
    margin-top: 0;
}

.stat-card-online.is-online {
    border-color: rgba(34, 197, 94, 0.35);
}

.badge-online {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    background: rgba(75, 85, 99, 0.2);
    color: var(--text-muted);
    border: 1px solid var(--border-soft);
}

.badge-online.has-online {
    background: var(--success-bg);
    color: var(--success);
    border-color: rgba(34, 197, 94, 0.3);
}

.user-card-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 0.85rem;
    flex-wrap: wrap;
}

.user-name {
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.user-note {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 0.15rem;
}

.status-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.3rem 0.7rem;
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 600;
}

.status-pill.on {
    background: var(--success-bg);
    color: var(--success);
}

.status-pill.off {
    background: var(--danger-bg);
    color: var(--danger);
}

.status-pill .dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: currentColor;
}

.status-pill.on .dot { box-shadow: 0 0 6px var(--success); }

.key-row {
    display: flex;
    gap: 0.5rem;
    align-items: stretch;
    margin-bottom: 0.85rem;
}

.key-input {
    flex: 1;
    min-width: 0;
    padding: 0.6rem 0.75rem;
    font-size: 0.78rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    background: var(--bg-card);
    color: #7eb8ff;
    font-family: var(--mono);
}

.user-meta {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 0.85rem;
}

.user-meta strong { color: var(--text); }

.user-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    align-items: center;
}

.user-actions form { display: inline; }

/* ——— Alerts & toast ——— */
.alert {
    padding: 1rem 1.15rem;
    border-radius: var(--radius-sm);
    margin-bottom: 1.25rem;
    border: 1px solid transparent;
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
}

.alert-success {
    background: var(--success-bg);
    color: #86efac;
    border-color: rgba(34, 197, 94, 0.25);
}

.alert-error {
    background: var(--danger-bg);
    color: #fca5a5;
    border-color: rgba(248, 113, 113, 0.25);
}

.key-block {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
}

.live-badge {
    background: rgba(34, 197, 94, 0.12);
    color: #86efac;
    border-color: rgba(34, 197, 94, 0.2);
    font-size: 0.72rem;
    max-width: 220px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.hint-inline {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-left: 0.25rem;
}

.user-meta {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.toast {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 0.85rem 1.2rem;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow);
    font-size: 0.9rem;
    font-weight: 600;
    z-index: 200;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.25s, transform 0.25s;
    pointer-events: none;
}

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

/* ——— Help card ——— */
.info-card ol {
    margin: 0;
    padding-left: 1.2rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.info-card li {
    margin-bottom: 0.65rem;
    padding-left: 0.25rem;
}

.info-card li strong { color: var(--text); }

.info-card .server-line {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-soft);
    font-size: 0.85rem;
    color: var(--text-muted);
}

.info-card .server-line span {
    color: #7eb8ff;
    font-weight: 600;
}

.steps {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.step {
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
}

.step-num {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    border-radius: 8px;
    background: rgba(59, 130, 246, 0.15);
    color: #93c5fd;
    font-size: 0.8rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
}

.step p {
    font-size: 0.88rem;
    color: var(--text-muted);
    line-height: 1.45;
}

.step p strong { color: var(--text); }

/* Hide old table — use cards */
.users-table { display: none; }