/* LaChati — estilos del panel (CSS nativo con anidación; sin frameworks) */

:root {
    color-scheme: dark;
    --bg: #0c0f14;
    --bg-elevated: #12171f;
    --surface: #161c27;
    --surface-hover: #1c2330;
    --border: #2a3344;
    --border-subtle: #1e2633;
    --text: #e6e9ef;
    --text-muted: #8b95a8;
    --text-faint: #5c6575;
    --accent: #5c9cfd;
    --accent-dim: #3d7ad6;
    --success: #3ecf8e;
    --danger: #f07178;
    --warning: #ebc275;
    --radius: 10px;
    --radius-sm: 6px;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
    --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
    --mono: ui-monospace, "Cascadia Mono", "SF Mono", Menlo, Consolas, monospace;
    --step: 0.25rem;
    --page-bg-gradient:
        radial-gradient(1200px 600px at 10% -10%, rgba(92, 156, 253, 0.08), transparent 55%),
        radial-gradient(800px 400px at 90% 0%, rgba(62, 207, 142, 0.05), transparent 50%),
        var(--bg);
    --link-hover-color: #8bb8ff;
    --code-text: #b8c5d9;
    --json-panel-bg: #080a0e;
    --json-pre-color: #b4bcc8;
    --chat-advanced-bg: rgba(0, 0, 0, 0.15);
    --emb-probe-placeholder-bg: rgba(0, 0, 0, 0.12);
    --emb-probe-details-bg: rgba(0, 0, 0, 0.12);
    --spark-bg: rgba(0, 0, 0, 0.22);
    --spark-grid-fill: rgba(255, 255, 255, 0.02);
    --meter-track-bg: rgba(0, 0, 0, 0.35);
    --dock-shadow: 0 -8px 32px rgba(0, 0, 0, 0.45);
    --focus-ring-accent: rgba(92, 156, 253, 0.2);
    --focus-ring-accent-strong: rgba(92, 156, 253, 0.25);
    --select-border-hover: #3a4658;
    --shadow-inset-widget: inset 0 1px 2px rgba(0, 0, 0, 0.12);
    --shadow-raise-control: 0 1px 3px rgba(0, 0, 0, 0.2);
    --btn-accent-gradient-start: rgba(92, 156, 253, 0.2);
    --btn-accent-gradient-end: rgba(92, 156, 253, 0.08);
    --btn-accent-gradient-hover-start: rgba(92, 156, 253, 0.32);
    --btn-accent-gradient-hover-end: rgba(92, 156, 253, 0.12);
    --btn-secondary-top: rgba(255, 255, 255, 0.08);
    --btn-secondary-bottom: rgba(255, 255, 255, 0.03);
    --btn-secondary-hover-top: rgba(255, 255, 255, 0.12);
    --btn-secondary-hover-bottom: rgba(255, 255, 255, 0.05);
    --probe-tabs-inset-line: inset 0 1px 0 rgba(255, 255, 255, 0.04);
    --tab-inactive-hover-bg: rgba(255, 255, 255, 0.06);
    --tab-active-gradient-top: rgba(255, 255, 255, 0.11);
    --tab-active-gradient-bottom: rgba(255, 255, 255, 0.04);
    --tab-active-shadow-outer: 0 1px 3px rgba(0, 0, 0, 0.22);
    --tab-active-shadow-inset: inset 0 1px 0 rgba(255, 255, 255, 0.07);
    --msg-user-gradient-start: rgba(92, 156, 253, 0.22);
    --msg-user-gradient-end: rgba(92, 156, 253, 0.1);
    --msg-user-border: rgba(92, 156, 253, 0.35);
    --alert-error-text: #ffc9cc;
    --alert-error-bg: rgba(240, 113, 120, 0.12);
    --alert-error-border: rgba(240, 113, 120, 0.35);
    --meter-fill-outer-glow: 0 0 10px rgba(0, 0, 0, 0.25);
    --ghost-btn-hover-bg: rgba(255, 255, 255, 0.06);
}

html[data-theme="light"] {
    color-scheme: light;
    --bg: #e8ecf4;
    --bg-elevated: #ffffff;
    --surface: #ffffff;
    --surface-hover: #f0f3f9;
    --border: #c5cedc;
    --border-subtle: #dfe6f0;
    --text: #111827;
    --text-muted: #4b5563;
    --text-faint: #6b7280;
    --accent: #2563eb;
    --accent-dim: #1d4ed8;
    --success: #059669;
    --danger: #dc2626;
    --warning: #b45309;
    --shadow: 0 4px 24px rgba(15, 23, 42, 0.07);
    --page-bg-gradient:
        radial-gradient(1200px 600px at 10% -10%, rgba(37, 99, 235, 0.08), transparent 55%),
        radial-gradient(800px 400px at 90% 0%, rgba(5, 150, 105, 0.06), transparent 50%),
        var(--bg);
    --link-hover-color: #1e40af;
    --code-text: #374c6d;
    --json-panel-bg: #f0f3f9;
    --json-pre-color: #334155;
    --chat-advanced-bg: rgba(15, 23, 42, 0.045);
    --emb-probe-placeholder-bg: rgba(15, 23, 42, 0.045);
    --emb-probe-details-bg: rgba(15, 23, 42, 0.045);
    --spark-bg: rgba(15, 23, 42, 0.07);
    --spark-grid-fill: rgba(15, 23, 42, 0.06);
    --meter-track-bg: rgba(15, 23, 42, 0.11);
    --dock-shadow: 0 -8px 28px rgba(15, 23, 42, 0.1);
    --focus-ring-accent: rgba(37, 99, 235, 0.22);
    --focus-ring-accent-strong: rgba(37, 99, 235, 0.28);
    --select-border-hover: #94a3b8;
    --shadow-inset-widget: inset 0 1px 2px rgba(15, 23, 42, 0.08);
    --shadow-raise-control: 0 1px 3px rgba(15, 23, 42, 0.12);
    --btn-accent-gradient-start: rgba(37, 99, 235, 0.16);
    --btn-accent-gradient-end: rgba(37, 99, 235, 0.06);
    --btn-accent-gradient-hover-start: rgba(37, 99, 235, 0.26);
    --btn-accent-gradient-hover-end: rgba(37, 99, 235, 0.1);
    --btn-secondary-top: rgba(15, 23, 42, 0.06);
    --btn-secondary-bottom: rgba(15, 23, 42, 0.02);
    --btn-secondary-hover-top: rgba(15, 23, 42, 0.09);
    --btn-secondary-hover-bottom: rgba(15, 23, 42, 0.04);
    --probe-tabs-inset-line: inset 0 1px 0 rgba(255, 255, 255, 0.65);
    --tab-inactive-hover-bg: rgba(15, 23, 42, 0.06);
    --tab-active-gradient-top: rgba(255, 255, 255, 0.98);
    --tab-active-gradient-bottom: rgba(241, 245, 249, 0.92);
    --tab-active-shadow-outer: 0 1px 3px rgba(15, 23, 42, 0.1);
    --tab-active-shadow-inset: inset 0 1px 0 rgba(255, 255, 255, 0.95);
    --msg-user-gradient-start: rgba(37, 99, 235, 0.18);
    --msg-user-gradient-end: rgba(37, 99, 235, 0.07);
    --msg-user-border: rgba(37, 99, 235, 0.32);
    --alert-error-text: #991b1b;
    --alert-error-bg: rgba(220, 38, 38, 0.08);
    --alert-error-border: rgba(220, 38, 38, 0.28);
    --meter-fill-outer-glow: 0 0 10px rgba(15, 23, 42, 0.12);
    --ghost-btn-hover-bg: rgba(15, 23, 42, 0.06);
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

body.app {
    margin: 0;
    min-height: 100vh;
    font-family: var(--font);
    font-size: 15px;
    line-height: 1.55;
    color: var(--text);
    background: var(--page-bg-gradient);
    -webkit-font-smoothing: antialiased;

    & a {
        color: var(--accent);
        text-decoration: none;

        &:hover {
            color: var(--link-hover-color);
            text-decoration: underline;
        }

        &:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
    }
}

.app__shell {
    max-width: min(1200px, 100% - 2rem);
    margin: 0 auto;
    padding: 2rem 1rem 3rem;

    &:has(.status-dock) {
        /* Espacio para la barra fija inferior (LLM + embeddings) */
        padding-bottom: clamp(6.5rem, 22vh, 10rem);
    }
}

.top-nav {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.75rem 1.25rem;
    padding: 0.75rem 0 1.5rem;
    margin-bottom: 0.25rem;
    border-bottom: 1px solid var(--border-subtle);

    & .logo {
        width: 20px;
    }

    & .top-nav__brand {
        font-weight: 650;
        letter-spacing: -0.02em;
        font-size: 1.05rem;
        color: var(--text);
        margin-right: auto;
    }

    & .top-nav__links {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 0.5rem 1rem;
        font-size: 0.95rem;

        & span {
            color: var(--text-faint);
            user-select: none;
        }
    }

    & .theme-toggle {
        flex-shrink: 0;
        display: inline-flex;
        align-items: center;
        gap: 0.45rem;
        margin-left: 0.25rem;
        padding: 0;
        border: none;
        background: transparent;
        cursor: pointer;
        font: inherit;
        color: var(--text-muted);
        border-radius: var(--radius-sm);

        &:hover {
            color: var(--text);
        }

        &:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
        }
    }

    & .theme-toggle__track {
        display: flex;
        align-items: center;
        width: 2.75rem;
        height: 1.55rem;
        padding: 3px;
        border-radius: 999px;
        background: var(--bg-elevated);
        border: 1px solid var(--border);
        box-shadow: var(--shadow-inset-widget);
        transition: border-color 0.15s ease, background 0.15s ease;
    }

    & .theme-toggle__thumb {
        width: 1.15rem;
        height: 1.15rem;
        border-radius: 50%;
        background: linear-gradient(180deg, var(--accent), var(--accent-dim));
        box-shadow: var(--shadow-raise-control);
        flex-shrink: 0;
        margin-inline-start: 0;
        margin-inline-end: auto;
        transition: margin 0.2s ease;
    }

    & .theme-toggle[aria-checked="false"] .theme-toggle__thumb {
        margin-inline-start: auto;
        margin-inline-end: 0;
    }

    & .theme-toggle__label {
        font-size: 0.78rem;
        font-weight: 600;
        letter-spacing: 0.04em;
        text-transform: uppercase;
        color: var(--text-faint);
        user-select: none;
    }
}

.page-title {
    font-size: 1.75rem;
    font-weight: 650;
    letter-spacing: -0.03em;
    margin: 0 0 0.35rem;
    line-height: 1.2;
}

.page-sub {
    margin: 0 0 1.75rem;
    color: var(--text-muted);
    max-width: 62ch;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.1rem;
    margin-bottom: 0.25rem;

    @media (min-width: 880px) {
        grid-template-columns: 1fr 1fr;
        align-items: start;
    }
}

.panel.panel--model {
    margin-bottom: 0;

    & .select--wide {
        min-width: min(100%, 100%);
        max-height: 45px;
    }

    & select optgroup {
        font-weight: 600;
        color: var(--text-muted);
        font-size: 0.88rem;
    }

    & select option {
        font-weight: 400;
        color: var(--text);
        padding: 0.2rem 0;
    }
}

.model-meta {
    margin-top: 0.85rem;
    padding: 0.75rem 0.9rem;
    border-radius: var(--radius-sm);
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    font-size: 0.86rem;
    line-height: 1.5;
    color: var(--text-muted);

    &[hidden] {
        display: none !important;
    }

    & .model-meta__title {
        margin: 0 0 0.5rem;
        font-size: 0.78rem;
        font-weight: 600;
        letter-spacing: 0.04em;
        text-transform: uppercase;
        color: var(--text-faint);
    }

    & .model-meta__title--secondary {
        margin-top: 0.85rem;
        margin-bottom: 0.4rem;
        font-size: 0.72rem;
        opacity: 0.92;
    }

    & p.model-meta__summary {
        margin: 0 0 0.35rem;
        font-size: 0.92rem;
        line-height: 1.55;
        color: var(--text);
        font-weight: 400;
    }

    & p.model-meta__tech {
        margin: 0;
        font-size: 0.84rem;
        line-height: 1.45;
        color: var(--text-muted);
        font-family: var(--mono);
        white-space: pre-wrap;
    }

    & p.model-meta__benchmark {
        margin: 0;
        font-size: 0.86rem;
        line-height: 1.5;
        color: var(--text);
        font-weight: 400;
    }

    & dl {
        margin: 0;
        display: grid;
        grid-template-columns: auto 1fr;
        gap: 0.35rem 1rem;
        align-items: baseline;
    }

    & dt {
        margin: 0;
        color: var(--text-faint);
        font-size: 0.82rem;
    }

    & dd {
        margin: 0;
        font-family: var(--mono);
        font-size: 0.84rem;
        color: var(--text);
    }

    & p.model-meta__desc {
        margin: 0.65rem 0 0;
        font-size: 0.84rem;
        line-height: 1.45;
        color: var(--text-muted);
        grid-column: 1 / -1;
    }
}

.ready-line {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    padding: 0.85rem 1rem;
    margin: 0 0 1.5rem;
    border-radius: var(--radius);
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    font-size: 0.95rem;

    &::before {
        content: "";
        flex-shrink: 0;
        width: 8px;
        height: 8px;
        margin-top: 0.45em;
        border-radius: 50%;
        background: var(--warning);
    }

    &[data-state="ready"]::before {
        background: var(--success);
        box-shadow: 0 0 12px rgba(62, 207, 142, 0.45);
    }

    &[data-state="error"]::before {
        background: var(--danger);
    }
}

.panel {
    padding: 1.15rem 1.25rem 1.25rem;
    margin: 0 0 1.1rem;
    border-radius: var(--radius);
    background: var(--surface);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);

    & .panel__title {
        margin: 0 0 0.5rem;
        font-size: 1rem;
        font-weight: 600;
        letter-spacing: -0.02em;
        color: var(--text);
    }

    & .panel__hint {
        margin: 0 0 1rem;
        font-size: 0.88rem;
        color: var(--text-muted);
        line-height: 1.5;

        & code {
            font-family: var(--mono);
            font-size: 0.86em;
            padding: 0.12em 0.38em;
            border-radius: 4px;
            background: var(--bg-elevated);
            border: 1px solid var(--border-subtle);
            color: var(--code-text);
        }
    }

    & .panel__row {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 0.6rem 0.75rem;

        @media (max-width: 520px) {
            flex-direction: column;
            align-items: stretch;
        }
    }

    & .panel__row--ctx {
        margin-top: 0.65rem;
        flex-direction: column;
        align-items: stretch;

        & > label {
            flex: none;
            width: 100%;
            margin-bottom: 0.25rem;
        }
    }

    & .panel__row--llm-toolbar {
        margin-bottom: 0.35rem;
    }

    & .llm-group-mode {
        margin: 0;
        padding: 0;
        border: none;
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 0.5rem 1rem;
        font-size: 0.88rem;
        color: var(--text-muted);

        & legend {
            float: left;
            margin: 0 0.65rem 0 0;
            padding: 0;
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--text);
        }

        & .llm-group-mode__opt {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            cursor: pointer;
            user-select: none;
        }

        & input[type="radio"] {
            accent-color: var(--accent);
        }
    }

    .ctx-controls {
        display: flex;
        flex-direction: column;
        gap: 0.55rem;
        width: 100%;
    }

    .ctx-range {
        display: block;
        width: 100%;
        height: 1.35rem;
        accent-color: var(--accent);
    }

    .ctx-num-note-row {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 0.5rem 0.75rem;
        width: 100%;
    }

    .ctx-num-note-row .input--ctx {
        flex: 0 0 auto;
        width: auto;
        min-width: 7.5rem;
        max-width: min(100%, 11rem);
    }

    .ctx-equiv {
        flex: 1 1 12rem;
        font-size: 0.78rem;
        line-height: 1.35;
        color: var(--text-faint);
        font-variant-numeric: tabular-nums;
        min-width: min(100%, 10rem);
    }


    & label {
        font-size: 0.82rem;
        font-weight: 500;
        color: var(--text-muted);
        display: block;
        width: 100%;
        margin-bottom: 0.2rem;
    }

    & .input--ctx {
        flex: 0 1 160px;
        min-width: min(100%, 160px);
        max-height: 45px;
        padding: 0.5rem 0.65rem;
        border-radius: var(--radius-sm);
        border: 1px solid var(--border);
        background: var(--bg-elevated);
        color: var(--text);
        font: inherit;

        &:focus-visible {
            outline: none;
            border-color: var(--accent);
            box-shadow: 0 0 0 3px var(--focus-ring-accent);
        }
    }

    & select {
        min-width: min(100%, 320px);
        flex: 1 1 220px;
        padding: 0.5rem 0.65rem;
        border-radius: var(--radius-sm);
        border: 1px solid var(--border);
        background: var(--bg-elevated);
        color: var(--text);
        font: inherit;
        cursor: pointer;

        &:hover {
            border-color: var(--select-border-hover);
        }

        &:focus-visible {
            outline: none;
            border-color: var(--accent);
            box-shadow: 0 0 0 3px var(--focus-ring-accent-strong);
        }
    }

    & .action-msg {
        font-size: 0.88rem;
        color: var(--text-muted);
        min-width: 2rem;

        &:empty {
            display: none;
        }
    }
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1rem;
    font: inherit;
    font-weight: 550;
    font-size: 0.92rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--accent-dim);
    background: linear-gradient(180deg, var(--btn-accent-gradient-start), var(--btn-accent-gradient-end));
    color: var(--text);
    cursor: pointer;
    transition: background 0.15s ease, border-color 0.15s ease, transform 0.1s ease;

    &:hover:not(:disabled) {
        background: linear-gradient(180deg, var(--btn-accent-gradient-hover-start), var(--btn-accent-gradient-hover-end));
        border-color: var(--accent);
    }

    &:active:not(:disabled) {
        transform: translateY(1px);
    }

    &:disabled {
        opacity: 0.45;
        cursor: not-allowed;
    }

    &:focus-visible {
        outline: 2px solid var(--accent);
        outline-offset: 2px;
    }
}

.btn--secondary {
    border-color: var(--border);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.03));

    &:hover:not(:disabled) {
        background: linear-gradient(180deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.05));
        border-color: var(--text-muted);
    }
}

.status-block:empty {
    display: none;
}

.status-block {
    padding: 0.85rem 1rem;
    margin: 0 0 0.65rem;
    border-radius: var(--radius-sm);
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    font-size: 0.9rem;
    line-height: 1.55;
    color: var(--text-muted);

    & strong {
        color: var(--text);
        font-weight: 600;
    }

    & .status-block__id {
        font-family: var(--mono);
        font-size: 0.86em;
        color: var(--accent);
        font-weight: 500;
    }

    & .status-block__error {
        color: var(--danger);
    }

    & .metric-line {
        font-size: 0.86rem;
        color: var(--text-faint);
        margin-top: 0.35rem;
    }
}

/* Barra inferior fija: estado LLM + embeddings siempre visible al hacer scroll */
.status-dock {
    position: fixed;
    z-index: 100;
    left: 0;
    right: 0;
    bottom: 0;
    padding-bottom: env(safe-area-inset-bottom, 0);
    background: var(--bg-elevated);
    background: color-mix(in srgb, var(--bg-elevated) 94%, transparent);
    border-top: 1px solid var(--border);
    box-shadow: var(--dock-shadow);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);

    & .status-dock__inner {
        max-width: min(1200px, 100% - 1.5rem);
        margin: 0 auto;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 0.5rem 1rem;
        padding: 0.55rem 0.75rem 0.65rem;
        align-items: start;
    }

    & .status-dock__heading {
        margin: 0 0 0.2rem;
        font-size: 0.68rem;
        font-weight: 700;
        letter-spacing: 0.08em;
        text-transform: uppercase;
        color: var(--text-faint);
    }

    & .status-dock__col {
        min-width: 0;
    }

    & .status-block--dock {
        margin: 0;
        padding: 0.45rem 0.6rem;
        font-size: 0.82rem;
        line-height: 1.45;
        border-radius: var(--radius-sm);
        max-height: min(28vh, 11rem);
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;

        &:empty {
            display: block;
            min-height: 2.4rem;
            color: var(--text-faint);
            font-size: 0.8rem;
        }

            &:empty::after {
                content: "Esperando estado…";
            }

        & .metric-line {
            font-size: 0.78rem;
            word-break: break-word;
        }
    }

    @media (max-width: 640px) {
        & .status-dock__inner {
            grid-template-columns: 1fr 1fr;
            gap: 0.35rem 0.45rem;
            padding: 0.4rem 0.45rem 0.5rem;
            max-width: 100%;
        }

        & .status-dock__heading {
            font-size: 0.6rem;
            letter-spacing: 0.05em;
            margin-bottom: 0.12rem;
        }

        & .status-block--dock {
            font-size: 0.72rem;
            line-height: 1.32;
            padding: 0.3rem 0.38rem;
            max-height: min(24vh, 8.75rem);

            &:empty::after {
                font-size: 0.7rem;
            }

            & .metric-line {
                font-size: 0.68rem;
                margin-top: 0.22rem;
            }

            & strong {
                font-size: 0.74rem;
            }
        }
    }
}

.json-panel {
    margin-top: 1.25rem;
    padding: 0;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: var(--json-panel-bg);
    overflow: hidden;

    & .json-panel__label {
        margin: 0;
        padding: 0.5rem 0.85rem;
        font-size: 0.72rem;
        font-weight: 600;
        letter-spacing: 0.06em;
        text-transform: uppercase;
        color: var(--text-faint);
        background: var(--bg-elevated);
        border-bottom: 1px solid var(--border-subtle);
    }

    & pre {
        margin: 0;
        padding: 1rem 1rem 1.15rem;
        max-height: 400px;
        overflow: auto;
        font-family: var(--mono);
        font-size: 12px;
        line-height: 1.45;
        color: var(--json-pre-color);
        tab-size: 2;
    }
}

/* Auth pages (login, logout, acceso denegado) */

.auth-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 50vh;
    padding: 1rem 0;
}

.auth-card {
    width: min(100%, 400px);
    padding: 1.75rem 1.5rem 1.5rem;
    border-radius: var(--radius);
    background: var(--surface);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);

    & h1 {
        margin: 0 0 1rem;
        font-size: 1.35rem;
        font-weight: 650;
        letter-spacing: -0.02em;
    }

    & .auth-card__footer {
        margin-top: 1rem;
        font-size: 0.92rem;
        color: var(--text-muted);
    }
}

.form-group {
    margin-bottom: 1rem;

    & label {
        display: block;
        font-size: 0.84rem;
        font-weight: 500;
        color: var(--text-muted);
        margin-bottom: 0.35rem;
    }

    & input[type="text"],
    & input[type="password"] {
        width: 100%;
        padding: 0.55rem 0.65rem;
        border-radius: var(--radius-sm);
        border: 1px solid var(--border);
        background: var(--bg-elevated);
        color: var(--text);
        font: inherit;

        &:focus-visible {
            outline: none;
            border-color: var(--accent);
            box-shadow: 0 0 0 3px var(--focus-ring-accent);
        }
    }
}

.alert {
    padding: 0.65rem 0.85rem;
    margin: 0 0 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    border: 1px solid transparent;

    &.alert--error {
        color: var(--alert-error-text);
        background: var(--alert-error-bg);
        border-color: var(--alert-error-border);
    }
}

.simple-page {
    & h1 {
        margin-top: 0;
    }
}

/* Chat de prueba (panel + móvil) */

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.btn--ghost {
    border-color: transparent;
    background: transparent;
    color: var(--text-muted);
    font-weight: 500;

    &:hover:not(:disabled) {
        background: var(--ghost-btn-hover-bg);
        border-color: var(--border);
        color: var(--text);
    }
}

/* Pestañas pruebas: Chat LLM / Embeddings */
.probe-tabs {
    margin: 0 0 1.1rem;

    & .probe-tabs__list {
        display: flex;
        flex-wrap: wrap;
        gap: 0.25rem;
        padding: 0.3rem;
        background: var(--bg-elevated);
        border: 1px solid var(--border-subtle);
        border-radius: var(--radius);
        box-shadow: var(--probe-tabs-inset-line);
    }

    & .probe-tabs__tab {
        flex: 1 1 auto;
        min-width: min(11rem, 46%);
        min-height: 2.75rem;
        padding: 0.5rem 0.85rem;
        margin: 0;
        border: 1px solid transparent;
        border-radius: calc(var(--radius-sm) + 1px);
        background: transparent;
        color: var(--text-muted);
        font: inherit;
        font-weight: 600;
        font-size: 0.875rem;
        letter-spacing: -0.01em;
        cursor: pointer;
        transition:
            background 0.15s ease,
            color 0.15s ease,
            border-color 0.15s ease,
            box-shadow 0.15s ease;

        &:hover:not(.probe-tabs__tab--active):not([aria-selected="true"]) {
            color: var(--text);
            background: var(--tab-inactive-hover-bg);
        }

        &:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
    }

    & .probe-tabs__tab--active,
    & .probe-tabs__tab[aria-selected="true"] {
        color: var(--text);
        background: linear-gradient(180deg, var(--tab-active-gradient-top), var(--tab-active-gradient-bottom));
        border-color: var(--border);
        box-shadow: var(--tab-active-shadow-outer), var(--tab-active-shadow-inset);
    }

    & .probe-tabs__panels {
        margin-top: 0.65rem;
    }

    & .probe-tabs__panel > .panel {
        margin-top: 0;
        margin-bottom: 0;
    }

    & .chat-card,
    & .emb-probe-card {
        margin-top: 0;
    }
}

.chat-card {
    margin-top: 0.35rem;

    .probe-tabs & {
        margin-top: 0;
    }

    &[data-llm-ready="false"] {
        opacity: 0.92;
    }
}

.chat-card__head {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 0.35rem;

    @media (min-width: 640px) {
        flex-direction: row;
        align-items: flex-start;
        justify-content: space-between;
        gap: 1rem;
    }

    & .panel__title {
        margin-bottom: 0.35rem;
    }
}

.chat-card__hint {
    margin: 0 !important;
    max-width: 68ch;
}

.chat-card__badge {
    margin: 0;
    flex-shrink: 0;
    align-self: flex-start;
    padding: 0.45rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.82rem;
    line-height: 1.35;
    color: var(--text-muted);
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    font-family: var(--mono);
    max-width: 100%;
    word-break: break-word;
}

.chat-layout {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
    margin-top: 0.75rem;
}

.chat-log {
    min-height: min(42vh, 320px);
    max-height: min(52vh, 440px);
    overflow-y: auto;
    overflow-x: hidden;
    padding: 0.65rem 0.5rem;
    border-radius: var(--radius-sm);
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
}

.chat-empty {
    margin: 0;
    padding: 1rem 0.75rem;
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-faint);
    line-height: 1.45;
}

.chat-log .msg {
    display: flex;
    margin-bottom: 0.65rem;

    &:last-child {
        margin-bottom: 0;
    }
}

.chat-log .msg--user {
    justify-content: flex-end;
}

.chat-log .msg--assistant {
    justify-content: flex-start;
}

.chat-log .msg__bubble {
    max-width: min(100%, 46rem);
    padding: 0.55rem 0.75rem;
    border-radius: 12px;
    font-size: 0.92rem;
    line-height: 1.5;
    white-space: pre-wrap;
    word-break: break-word;
}

.chat-log .msg--user .msg__bubble {
    background: linear-gradient(180deg, var(--msg-user-gradient-start), var(--msg-user-gradient-end));
    border: 1px solid var(--msg-user-border);
    color: var(--text);
}

.chat-log .msg--assistant .msg__bubble {
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text-muted);
}

.chat-composer {
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
}

.chat-label {
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--text-muted);
}

.chat-textarea {
    width: 100%;
    padding: 0.6rem 0.75rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    background: var(--bg-elevated);
    color: var(--text);
    font: inherit;
    font-size: 0.95rem;
    line-height: 1.45;
    resize: vertical;
    min-height: 2.75rem;

    &:focus-visible {
        outline: none;
        border-color: var(--accent);
        box-shadow: 0 0 0 3px var(--focus-ring-accent);
    }
}

.chat-textarea--input {
    min-height: 5.5rem;
}

.chat-composer__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 0.6rem;
    align-items: center;

    & .btn {
        min-height: 44px;
        padding: 0.55rem 1rem;
    }
}

.chat-advanced {
    margin-top: 1rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-subtle);
    background: var(--chat-advanced-bg);

    & summary {
        cursor: pointer;
        list-style: none;
        padding: 0.65rem 0.85rem;
        font-size: 0.88rem;
        font-weight: 600;
        color: var(--text-muted);
        user-select: none;

        &::-webkit-details-marker {
            display: none;
        }

        &::before {
            content: "▸ ";
            display: inline-block;
            transition: transform 0.15s ease;
            color: var(--accent);
        }
    }

    &[open] summary::before {
        transform: rotate(90deg);
    }
}

.chat-advanced__inner {
    padding: 0 0.85rem 0.85rem;
    display: grid;
    gap: 0.85rem 1rem;
    grid-template-columns: 1fr;

    @media (min-width: 560px) {
        grid-template-columns: 1fr 1fr;
    }
}

.chat-field {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;

    & label {
        font-size: 0.8rem;
        font-weight: 500;
        color: var(--text-muted);
    }

    & input[type="range"] {
        width: 100%;
        accent-color: var(--accent);
    }

    & input[type="number"] {
        padding: 0.5rem 0.6rem;
        border-radius: var(--radius-sm);
        border: 1px solid var(--border);
        background: var(--bg-elevated);
        color: var(--text);
        font: inherit;
        max-width: 100%;

        &:focus-visible {
            outline: none;
            border-color: var(--accent);
            box-shadow: 0 0 0 3px var(--focus-ring-accent);
        }
    }
}

.chat-field--full {
    grid-column: 1 / -1;
}

.chat-field--check {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;

    & input[type="checkbox"] {
        width: 1.1rem;
        height: 1.1rem;
        accent-color: var(--accent);
    }

    & label {
        margin: 0;
        font-weight: 500;
        cursor: pointer;
    }
}

.chat-field__val {
    font-family: var(--mono);
    color: var(--accent);
    font-weight: 500;
}

.chat-footnote {
    margin: 0.75rem 0 0;
    min-height: 1.25rem;
    font-size: 0.86rem;
    color: var(--text-muted);

    &.chat-footnote--error {
        color: var(--danger);
    }

    &:empty {
        display: none;
    }
}

/* Prueba de embeddings (panel + responsive) */

.emb-probe-card {
    margin-top: 0.35rem;

    .probe-tabs & {
        margin-top: 0;
    }

    &[data-emb-ready="false"] {
        opacity: 0.92;
    }
}

.emb-probe-card__head {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 0.35rem;

    @media (min-width: 640px) {
        flex-direction: row;
        align-items: flex-start;
        justify-content: space-between;
        gap: 1rem;
    }

    & .panel__title {
        margin-bottom: 0.35rem;
    }
}

.emb-probe-card__hint {
    margin: 0 !important;
    max-width: 68ch;
}

.emb-probe-card__badge {
    margin: 0;
    flex-shrink: 0;
    align-self: flex-start;
    padding: 0.45rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.82rem;
    line-height: 1.35;
    color: var(--text-muted);
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    font-family: var(--mono);
    max-width: 100%;
    word-break: break-word;
}

.emb-probe-layout {
    display: grid;
    gap: 1rem;
    margin-top: 0.75rem;
    grid-template-columns: 1fr;

    @media (min-width: 720px) {
        grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
        align-items: start;
    }
}

.emb-probe-col {
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
    min-width: 0;
}

.emb-probe-label {
    margin: 0;
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--text-muted);
}

.emb-probe-textarea {
    min-height: 6rem;
}

.emb-probe-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 0.6rem;
    align-items: center;

    & .btn {
        min-height: 44px;
        padding: 0.55rem 1rem;
    }

    &.emb-probe-actions--after {
        margin-top: 0.35rem;
    }
}

.emb-probe-placeholder {
    margin: 0;
    padding: 0.85rem 0.75rem;
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-faint);
    line-height: 1.45;
    border-radius: var(--radius-sm);
    border: 1px dashed var(--border-subtle);
    background: var(--emb-probe-placeholder-bg);

    &[hidden] {
        display: none !important;
    }
}

.emb-probe-meta {
    margin: 0;
    font-size: 0.86rem;
    line-height: 1.45;
    color: var(--text-muted);

    &[hidden] {
        display: none !important;
    }
}

.emb-probe-pre {
    margin: 0;
    padding: 0.65rem 0.75rem;
    max-height: min(48vh, 380px);
    overflow: auto;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-subtle);
    background: var(--bg-elevated);
    font-family: var(--mono);
    font-size: 11px;
    line-height: 1.45;
    color: var(--json-pre-color);
    white-space: pre-wrap;
    word-break: break-word;
    -webkit-overflow-scrolling: touch;

    &[hidden] {
        display: none !important;
    }
}

.emb-probe-pre--json {
    max-height: min(40vh, 280px);
    margin-top: 0.35rem;
}

.emb-probe-details {
    margin-top: 0.25rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-subtle);
    background: var(--emb-probe-details-bg);

    &[hidden] {
        display: none !important;
    }

    & summary {
        cursor: pointer;
        list-style: none;
        padding: 0.55rem 0.75rem;
        font-size: 0.86rem;
        font-weight: 600;
        color: var(--text-muted);
        user-select: none;

        &::-webkit-details-marker {
            display: none;
        }

        &::before {
            content: "▸ ";
            display: inline-block;
            color: var(--accent);
            margin-right: 0.25rem;
        }
    }

    &[open] summary::before {
        content: "▾ ";
    }

    & > .emb-probe-pre {
        margin: 0 0.5rem 0.5rem;
        border: 1px solid var(--border);
    }
}

/* Estadísticas del servidor (RAM / disco / CPU) */

.server-stats {
    margin-top: 0.35rem;

    & .server-stats__hint {
        margin: 0 0 1rem !important;
        max-width: 72ch;
    }
}

.server-stats__err {
    margin: 0.75rem 0 0;
    font-size: 0.88rem;
    color: var(--danger);

    &[hidden] {
        display: none !important;
    }
}

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

    @media (min-width: 720px) {
        grid-template-columns: repeat(3, 1fr);
        align-items: stretch;
    }
}

.stat-card {
    padding: 0.85rem 0.95rem 0.95rem;
    border-radius: var(--radius-sm);
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    min-width: 0;
}

.stat-card__top {
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
    margin-bottom: 0.55rem;
}

.stat-card__title {
    font-size: 0.78rem;
    font-weight: 650;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--text-faint);
}

.spark {
    display: block;
    width: 100%;
    height: 36px;
    border-radius: 6px;
    background: var(--spark-bg);
    border: 1px solid var(--border-subtle);
}

.spark__grid {
    fill: var(--spark-grid-fill);
}

.spark__line {
    stroke-linecap: round;
    stroke-linejoin: round;
    vector-effect: non-scaling-stroke;
}

.spark__line--mem {
    stroke: #8bb8ff;
    stroke-width: 1.35;
}

.spark__line--disk {
    stroke: #f0d090;
    stroke-width: 1.35;
}

.spark__line--cpu {
    stroke: #5ee9a8;
    stroke-width: 1.35;
}

.meter {
    position: relative;
    height: 9px;
    border-radius: 5px;
    background: var(--meter-track-bg);
    overflow: hidden;
    border: 1px solid var(--border-subtle);
}

.meter__fill {
    height: 100%;
    border-radius: 5px;
    width: 0%;
    transition: width 0.4s ease;
    box-shadow: var(--meter-fill-outer-glow);
}

.meter__fill--mem {
    background: linear-gradient(90deg, #3d7ad6, #8bb8ff);
}

.meter__fill--disk {
    background: linear-gradient(90deg, #c49a3a, #f0d090);
}

.meter__fill--cpu {
    background: linear-gradient(90deg, #2a9d6a, #5ee9a8);
}

.stat-card__detail {
    margin: 0.55rem 0 0;
    font-size: 0.84rem;
    line-height: 1.45;
    color: var(--text-muted);
    word-break: break-word;
}