:root {
    --bg: #0f1419;
    --card: #1a2332;
    --text: #e8eef6;
    --muted: #93a0b3;
    --accent: #3d9cf0;
    --accent-hover: #5aaff5;
    --error: #f07178;
    --error-bg: rgba(240, 113, 120, 0.12);
    --warn: #e8c07a;
    --warn-bg: rgba(232, 192, 122, 0.12);
    --ok: #7fd99a;
    --ok-bg: rgba(127, 217, 154, 0.12);
    --border: #2c3a4e;
    --input: #121924;
}

* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    min-height: 100%;
}

body {
    font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
    background: radial-gradient(circle at top, #1c2a3d 0%, var(--bg) 55%);
    color: var(--text);
    line-height: 1.5;
}

.wrap {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
}

.wrap-app {
    align-items: flex-start;
    padding-top: 2rem;
}

.wrap-app-usuario {
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    min-height: 100vh;
    padding: 1.25rem 1.5rem 1.5rem;
}

.wrap-app-usuario .app-nav {
    flex: 0 0 auto;
    width: 100%;
    margin-bottom: 0;
}

.wrap-app-usuario .card-wide {
    height: auto;
    min-height: 0;
    width: auto;
    max-width: 28rem;
    flex: 0 0 auto;
}

.wrap-app-usuario .vm-stage {
    flex: 1 1 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    min-height: 0;
}

.wrap-app-usuario .vm-stage .msg,
.wrap-app-usuario .vm-stage .key-reveal {
    width: 100%;
    max-width: 28rem;
}

.wrap-app-usuario .vm-card {
    flex: 0 0 auto;
    height: auto;
    width: 100%;
    max-width: 28rem;
}

.card {
    width: 100%;
    max-width: 26rem;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 1.75rem 1.6rem 1.6rem;
    box-shadow: 0 18px 50px rgba(0, 0, 0, 0.28);
}

.card-wide {
    max-width: 58rem;
}

h1 {
    margin: 0 0 0.35rem;
    font-size: 1.35rem;
    font-weight: 650;
}

h2 {
    margin: 1.4rem 0 0.7rem;
    font-size: 1.05rem;
    font-weight: 650;
}

.lede {
    margin: 0 0 1.25rem;
    color: var(--muted);
    font-size: 0.95rem;
}

label {
    display: block;
    font-size: 0.9rem;
    margin-bottom: 0.4rem;
}

input[type="password"],
input[type="text"],
input[type="number"],
select,
textarea {
    width: 100%;
    padding: 0.7rem 0.8rem;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--input);
    color: var(--text);
    font-size: 1rem;
    font-family: inherit;
}

input[type="password"] {
    letter-spacing: 0.04em;
}

textarea {
    min-height: 4.5rem;
    resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
    outline: 2px solid var(--accent);
    outline-offset: 1px;
}

.field {
    margin-bottom: 0.9rem;
}

.client-assignment.is-hidden {
    display: none;
}

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

button, .btn {
    display: inline-block;
    margin: 0;
    width: auto;
    padding: 0.75rem 1rem;
    border: 0;
    border-radius: 8px;
    background: var(--accent);
    color: #071018;
    font-weight: 650;
    font-size: 0.98rem;
    cursor: pointer;
    text-align: center;
    text-decoration: none;
    font-family: inherit;
}

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

button:disabled, .btn:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.btn-block {
    display: block;
    width: 100%;
    margin-top: 1rem;
}

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

.btn-secondary:hover {
    background: #243044;
}

.btn-small {
    padding: 0.4rem 0.7rem;
    font-size: 0.82rem;
}

.btn-lg {
    padding: 0.95rem 1.2rem;
    font-size: 1.08rem;
    border-radius: 10px;
}

.btn-stack {
    display: grid;
    gap: 0.7rem;
    margin-top: 1.35rem;
}

.btn-stack .btn {
    width: 100%;
}

.btn-warn {
    background: transparent;
    color: var(--warn);
    border: 1px solid rgba(232, 192, 122, 0.5);
}

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

.btn-danger {
    background: transparent;
    color: var(--error);
    border: 1px solid var(--error);
}

.btn-danger:hover {
    background: var(--error-bg);
}

.btn-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    align-items: center;
}

.btn-row .restart-form,
.btn-stack .restart-form {
    margin: 0;
}

.btn-stack .restart-form .btn {
    width: 100%;
}

.form-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.msg {
    margin: 0 0 1rem;
    padding: 0.7rem 0.8rem;
    border-radius: 8px;
    font-size: 0.92rem;
}

.msg.error {
    background: var(--error-bg);
    color: var(--error);
}

.msg.ok {
    background: var(--ok-bg);
    color: var(--ok);
}

.hint {
    margin: 0.85rem 0 0;
    color: var(--muted);
    font-size: 0.8rem;
}

.hint.tight {
    margin: 0.35rem 0 0;
}

.node-filter {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem 1rem;
    align-items: flex-end;
    margin: 0 0 1.15rem;
    padding: 0.85rem 1rem;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--input);
}

.node-filter .field {
    margin-bottom: 0;
    flex: 1 1 14rem;
    max-width: 22rem;
}

.node-filter .field label {
    margin-bottom: 0.3rem;
}

.app-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem 1rem;
    align-items: center;
    margin: 0 0 1.25rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
}

.app-nav a {
    color: var(--accent);
    text-decoration: none;
    font-weight: 650;
}

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

.nav-meta {
    margin-left: auto;
    color: var(--muted);
    font-size: 0.85rem;
}

.nav-logout {
    display: inline;
}

.summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr));
    gap: 0.75rem;
    margin: 0 0 1.25rem;
}

.summary-card,
.panel-link {
    display: block;
    padding: 0.9rem 1rem;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--input);
    text-decoration: none;
    color: inherit;
}

.panel-link:hover {
    border-color: var(--accent);
}

.summary-card .num,
.panel-link .num {
    display: block;
    font-size: 1.35rem;
    font-weight: 700;
}

.summary-card span,
.panel-link span {
    color: var(--muted);
    font-size: 0.85rem;
}

.table-wrap {
    overflow-x: auto;
}

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

.table th,
.table td {
    text-align: left;
    padding: 0.55rem 0.5rem;
    border-bottom: 1px solid var(--border);
    font-size: 0.9rem;
    vertical-align: top;
}

.table th {
    color: var(--muted);
    font-weight: 650;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.badge {
    display: inline-block;
    padding: 0.12rem 0.45rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 650;
    background: #243044;
    color: var(--text);
}

.badge-admin {
    background: rgba(61, 156, 240, 0.18);
    color: var(--accent);
}

.badge-ok {
    background: var(--ok-bg);
    color: var(--ok);
}

.badge-off {
    background: var(--error-bg);
    color: var(--error);
}

.key-reveal {
    margin: -0.4rem 0 1rem;
    padding: 0.7rem 0.8rem;
    border-radius: 8px;
    background: var(--ok-bg);
    color: var(--ok);
    font-size: 0.92rem;
}

.key-reveal code,
code {
    font-family: ui-monospace, "Cascadia Code", Consolas, monospace;
    font-size: 0.88rem;
}

.muted {
    color: var(--muted);
}

.vm-card {
    width: 100%;
    max-width: 28rem;
    margin: 0 auto;
    padding: 1.35rem 1.35rem 1.15rem;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: var(--input);
}

.vm-card .btn-stack {
    margin-top: 0;
}

.vm-card-empty {
    margin: 0;
    color: var(--muted);
    font-size: 0.98rem;
}

.vm-card .hint {
    text-align: center;
}

.modal[hidden] {
    display: none;
}

.modal {
    position: fixed;
    inset: 0;
    z-index: 80;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.25rem;
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(7, 12, 18, 0.72);
}

.modal-card {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 24rem;
    padding: 1.35rem 1.3rem 1.2rem;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: var(--card);
    box-shadow: 0 18px 50px rgba(0, 0, 0, 0.4);
}

.modal-card h2 {
    margin: 0 0 0.5rem;
}

.modal-card p {
    margin: 0 0 1rem;
    color: var(--muted);
    font-size: 0.92rem;
}

.modal-ack {
    display: flex;
    gap: 0.55rem;
    align-items: flex-start;
    margin-bottom: 1rem;
    font-size: 0.92rem;
}

.modal-ack input[type="checkbox"] {
    width: auto;
    margin: 0.2rem 0 0;
    accent-color: var(--warn);
}

@media (max-width: 640px) {
    .nav-meta {
        margin-left: 0;
        width: 100%;
    }
}