/*
 * Hoja de estilos única, servida desde el propio origen.
 *
 * No hay build step, ni Tailwind, ni CDN: la política de contenido de la
 * aplicación sólo permite `style-src 'self'`, así que todo lo visual vive
 * aquí. Un archivo menos que compilar es también una cadena de suministro
 * menos que auditar.
 */

:root {
    color-scheme: light dark;

    --bg: #f4f4f5;
    --surface: #ffffff;
    --surface-alt: #fafafa;
    --border: #e0e0e4;
    --text: #18181b;
    --text-soft: #63636c;
    --accent: #2f5fd0;
    --accent-text: #ffffff;
    --danger: #b3261e;
    --danger-soft: #fdeceb;
    --warn: #8a5a00;
    --warn-soft: #fff5e0;
    --ok: #1c6b3f;
    --ok-soft: #e8f5ed;
    --radius: 10px;
    --shadow: 0 1px 2px rgb(0 0 0 / 6%), 0 4px 16px rgb(0 0 0 / 4%);
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #121214;
        --surface: #1b1b1f;
        --surface-alt: #232329;
        --border: #33333b;
        --text: #ececf1;
        --text-soft: #a1a1ad;
        --accent: #7ba2f0;
        --accent-text: #10121a;
        --danger: #ff9a90;
        --danger-soft: #3a1f1d;
        --warn: #f0c47a;
        --warn-soft: #382c14;
        --ok: #86dcab;
        --ok-soft: #16301f;
        --shadow: 0 1px 2px rgb(0 0 0 / 40%), 0 8px 24px rgb(0 0 0 / 30%);
    }
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    -webkit-text-size-adjust: 100%;
}

a {
    color: var(--accent);
}

/* ---------------------------------------------------------------- cabecera */

.topbar {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 10;
}

.topbar__inner {
    max-width: 880px;
    margin: 0 auto;
    padding: 0.75rem 1.25rem;
    display: flex;
    align-items: center;
    gap: 1.25rem;
    flex-wrap: wrap;
}

.topbar__brand {
    font-weight: 650;
    letter-spacing: -0.01em;
    text-decoration: none;
    color: var(--text);
    margin-right: auto;
}

.topbar__brand span {
    color: var(--text-soft);
    font-weight: 400;
}

.topbar nav {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.topbar nav a {
    color: var(--text-soft);
    text-decoration: none;
    font-size: 0.925rem;
}

.topbar nav a:hover,
.topbar nav a[aria-current="page"] {
    color: var(--text);
}

/* ------------------------------------------------------------------ layout */

main {
    max-width: 880px;
    margin: 0 auto;
    padding: 1.75rem 1.25rem 4rem;
}

.guest {
    min-height: 100dvh;
    display: grid;
    place-items: center;
    padding: 1.5rem;
}

.guest__card {
    width: 100%;
    max-width: 26rem;
}

.guest__title {
    text-align: center;
    margin: 0 0 1.5rem;
}

.guest__title h1 {
    font-size: 1.35rem;
    margin: 0 0 0.25rem;
}

.guest__title p {
    margin: 0;
    color: var(--text-soft);
    font-size: 0.9rem;
}

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

.page-head {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 1.25rem;
}

.page-head h1 {
    font-size: 1.4rem;
    margin: 0;
    margin-right: auto;
}

.section + .section {
    margin-top: 1.5rem;
}

.section h2 {
    font-size: 1rem;
    margin: 0 0 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-soft);
}

/* ---------------------------------------------------------------- formularios */

.field {
    margin-bottom: 1.1rem;
}

.field label {
    display: block;
    font-size: 0.875rem;
    font-weight: 550;
    margin-bottom: 0.35rem;
}

.field .hint {
    display: block;
    font-size: 0.8rem;
    color: var(--text-soft);
    margin-top: 0.35rem;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="search"],
textarea {
    width: 100%;
    padding: 0.6rem 0.75rem;
    background: var(--surface-alt);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    font: inherit;
}

input:focus-visible,
textarea:focus-visible,
button:focus-visible,
a:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

textarea {
    min-height: 22rem;
    resize: vertical;
    font-family: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace;
    font-size: 0.925rem;
    line-height: 1.7;
}

.code-input {
    font-family: ui-monospace, Menlo, Consolas, monospace;
    font-size: 1.5rem;
    letter-spacing: 0.4em;
    text-align: center;
}

.checkbox {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
}

.checkbox input {
    width: 1rem;
    height: 1rem;
    accent-color: var(--accent);
}

.form-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-top: 1.25rem;
}

/* ------------------------------------------------------------------ botones */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.55rem 1rem;
    border: 1px solid transparent;
    border-radius: 8px;
    background: var(--accent);
    color: var(--accent-text);
    font: inherit;
    font-size: 0.925rem;
    font-weight: 550;
    text-decoration: none;
    cursor: pointer;
}

.btn:hover {
    filter: brightness(1.08);
}

.btn--ghost {
    background: transparent;
    border-color: var(--border);
    color: var(--text);
}

.btn--danger {
    background: transparent;
    border-color: var(--border);
    color: var(--danger);
}

.btn--link {
    background: none;
    border: none;
    padding: 0;
    color: var(--accent);
    text-decoration: underline;
}

/* ------------------------------------------------------------------ avisos */

.alert {
    border-radius: var(--radius);
    padding: 0.85rem 1rem;
    margin-bottom: 1.25rem;
    font-size: 0.925rem;
    border: 1px solid transparent;
}

.alert--ok {
    background: var(--ok-soft);
    border-color: var(--ok);
    color: var(--ok);
}

.alert--warn {
    background: var(--warn-soft);
    border-color: var(--warn);
    color: var(--warn);
}

.alert--error {
    background: var(--danger-soft);
    border-color: var(--danger);
    color: var(--danger);
}

.alert ul {
    margin: 0.4rem 0 0;
    padding-left: 1.1rem;
}

/*
 * Ningún elemento lleva atributo `style`: la política de contenido bloquea los
 * estilos en línea igual que los scripts, así que el espaciado se resuelve aquí.
 */
.alert .secret {
    margin: 0.75rem 0;
}

.field-error {
    display: block;
    color: var(--danger);
    font-size: 0.85rem;
    margin-top: 0.35rem;
}

/* ------------------------------------------------------------------- notas */

.search {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.25rem;
}

.note-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 0.75rem;
}

.note-card {
    display: block;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1rem 1.15rem;
    text-decoration: none;
    color: inherit;
}

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

.note-card h2 {
    font-size: 1.02rem;
    margin: 0 0 0.3rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.note-card p {
    margin: 0;
    color: var(--text-soft);
    font-size: 0.9rem;
    overflow-wrap: anywhere;
}

.note-card time {
    display: block;
    margin-top: 0.5rem;
    font-size: 0.78rem;
    color: var(--text-soft);
}

.note-body {
    white-space: pre-wrap;
    overflow-wrap: anywhere;
    font-family: ui-monospace, Menlo, Consolas, monospace;
    font-size: 0.925rem;
    line-height: 1.75;
    margin: 0;
}

.empty {
    text-align: center;
    color: var(--text-soft);
    padding: 3rem 1rem;
}

/* ------------------------------------------------------- claves y secretos */

.secret {
    background: var(--surface-alt);
    border: 1px dashed var(--border);
    border-radius: 8px;
    padding: 0.9rem;
    font-family: ui-monospace, Menlo, Consolas, monospace;
    font-size: 0.95rem;
    word-break: break-all;
    user-select: all;
}

.qr {
    display: grid;
    place-items: center;
    background: #ffffff;
    border-radius: 8px;
    padding: 1rem;
    width: fit-content;
    margin: 0 auto 1rem;
}

.qr svg {
    display: block;
}

/* --------------------------------------------------------------- auditoría */

.log {
    list-style: none;
    margin: 0;
    padding: 0;
    font-size: 0.875rem;
}

.log li {
    display: flex;
    gap: 0.75rem;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border);
    color: var(--text-soft);
}

.log li:last-child {
    border-bottom: none;
}

.log code {
    color: var(--text);
    font-size: 0.85rem;
}

.log time {
    margin-left: auto;
    white-space: nowrap;
}

/* ------------------------------------------------------------ paginación */

.pagination {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
    margin-top: 1.5rem;
    font-size: 0.9rem;
}

.pagination a,
.pagination span {
    padding: 0.35rem 0.7rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    text-decoration: none;
    color: var(--text-soft);
}

.pagination .is-current {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--accent-text);
}

.meta {
    color: var(--text-soft);
    font-size: 0.875rem;
}

.badge {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 0.1rem 0.4rem;
    border-radius: 4px;
    background: var(--surface-alt);
    border: 1px solid var(--border);
    color: var(--text-soft);
}