:root {
    color-scheme: dark;
    --bg: #0d151b;
    --panel: #111f27;
    --panel-2: #172b34;
    --line: rgba(163, 199, 209, 0.22);
    --text: #e8f4f6;
    --muted: #93a9af;
    --cyan: #4ec8d8;
    --green: #48d597;
    --red: #ff6b6b;
    --yellow: #e7c765;
    --wa-green: #25d366;
}

* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
    min-height: 100%;
    font-family: "Segoe UI", Arial, -apple-system, BlinkMacSystemFont, Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    overflow-x: hidden;
    overflow-y: auto;
}

a {
    color: inherit;
}

button, select, input {
    font: inherit;
}

/* ==========================================================================
   App Shell & Navigation
   ========================================================================== */

.app-shell {
    min-height: 100dvh;
    display: grid;
    grid-template-columns: 220px minmax(0, 1fr);
    background: radial-gradient(circle at 20% 0%, rgba(78, 200, 216, 0.08), transparent 30%), var(--bg);
}

.sidebar {
    border-right: 1px solid var(--line);
    background: #0a1116;
    z-index: 10;
}

.nav-shell {
    position: sticky;
    top: 0;
    display: flex;
    flex-direction: column;
    gap: 24px;
    padding: 20px 14px;
}

.nav-top-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

.mobile-nav-toggle {
    display: none;
    background: transparent;
    border: none;
    cursor: pointer;
    font-size: 1.3rem;
    color: var(--cyan);
}

.nav-collapsible {
    display: flex;
    flex-direction: column;
    gap: 20px;
    flex: 1;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.brand span {
    display: grid;
    place-items: center;
    width: 38px;
    height: 38px;
    border: 1px solid rgba(78, 200, 216, 0.45);
    background: rgba(78, 200, 216, 0.12);
    color: var(--cyan);
    font-weight: 800;
    border-radius: 4px;
}

.brand strong {
    font-size: 0.95rem;
    letter-spacing: 0.08em;
    color: #fff;
}

.nav-shell nav {
    display: grid;
    gap: 8px;
}

.nav-link {
    display: block;
    padding: 10px 12px;
    border: 1px solid transparent;
    color: var(--muted);
    text-decoration: none;
    border-radius: 4px;
    transition: all 0.2s ease;
}

.nav-link.active,
.nav-link:hover {
    color: var(--text);
    border-color: var(--line);
    background: rgba(78, 200, 216, 0.08);
}

main {
    min-width: 0;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
}

/* ==========================================================================
   Global Alarm Banner & Flashing Animations
   ========================================================================== */

.home-alarm-slot {
    flex: 0 0 auto;
    margin-bottom: 12px;
}

.global-alarm-banner {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: 12px;
    min-height: 46px;
    padding: 8px 16px;
    border: 1px solid var(--line);
    background: rgba(10, 17, 22, 0.92);
    color: var(--muted);
    border-radius: 6px;
    transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.global-alarm-banner strong {
    display: block;
    color: var(--text);
    font-size: 0.92rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.global-alarm-banner span {
    display: block;
    font-size: 0.85rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.global-alarm-banner a {
    padding: 6px 12px;
    border: 1px solid var(--line);
    color: var(--text);
    text-decoration: none;
    font-size: 0.84rem;
    font-weight: 600;
    border-radius: 4px;
    background: rgba(78, 200, 216, 0.08);
    white-space: nowrap;
}

.alarm-beacon {
    width: 14px;
    height: 14px;
    border: 1px solid rgba(72, 213, 151, 0.6);
    border-radius: 999px;
    background: var(--green);
    box-shadow: 0 0 14px rgba(72, 213, 151, 0.6);
}

/* Flashing activo para alarmas */
.global-alarm-banner.active {
    border-color: rgba(255, 107, 107, 0.85);
    color: #ffe0e0;
    animation: activeAlarmGlow 1.2s ease-in-out infinite alternate;
}

.global-alarm-banner.active strong {
    color: #fff;
}

.global-alarm-banner.active .alarm-beacon {
    border-color: rgba(255, 107, 107, 0.9);
    background: var(--red);
    box-shadow: 0 0 16px rgba(255, 107, 107, 0.8);
    animation: alarmPulse 0.8s infinite;
}

/* Flashing estroboscópico de alta intensidad para alarmas críticas */
.global-alarm-banner.critical {
    animation: criticalAlarmFlash 0.9s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

@keyframes activeAlarmGlow {
    0% {
        background: rgba(45, 12, 14, 0.92);
        box-shadow: 0 0 12px rgba(255, 107, 107, 0.25), inset 0 0 10px rgba(255, 107, 107, 0.15);
    }
    100% {
        background: rgba(75, 18, 22, 0.96);
        box-shadow: 0 0 24px rgba(255, 107, 107, 0.55), inset 0 0 18px rgba(255, 107, 107, 0.3);
    }
}

@keyframes criticalAlarmFlash {
    0%, 100% {
        background: rgba(85, 15, 20, 0.98);
        border-color: #ff4d4d;
        box-shadow: 0 0 28px rgba(255, 77, 77, 0.7), inset 0 0 20px rgba(255, 77, 77, 0.4);
    }
    50% {
        background: rgba(30, 8, 10, 0.92);
        border-color: rgba(255, 107, 107, 0.45);
        box-shadow: 0 0 8px rgba(255, 107, 107, 0.2);
    }
}

@keyframes alarmPulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
        box-shadow: 0 0 14px rgba(255, 107, 107, 0.9);
    }
    50% {
        opacity: 0.35;
        transform: scale(1.35);
        box-shadow: 0 0 24px rgba(255, 107, 107, 1);
    }
}

/* ==========================================================================
   SCADA Main Layout & Dashboard Grid
   ========================================================================== */

.scada-page {
    padding: 16px 22px;
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
}

.scada-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 12px;
}

.eyebrow {
    margin: 0 0 4px;
    color: var(--cyan);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.16em;
}

h1 {
    margin: 0;
    font-size: clamp(1.6rem, 2.8vw, 2.5rem);
    font-weight: 800;
    letter-spacing: -0.02em;
}

h2 {
    margin: 0 0 12px 0;
    font-size: 1rem;
    color: #d7e8eb;
}

.system-strip {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    padding: 8px 12px;
    border: 1px solid var(--line);
    background: rgba(17, 31, 39, 0.86);
    color: var(--muted);
    font-size: 0.88rem;
    border-radius: 4px;
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 999px;
    background: var(--red);
    box-shadow: 0 0 12px currentColor;
}

.status-dot.ok {
    background: var(--green);
}

.status-dot.bad {
    background: var(--red);
}

.alert-line {
    margin-bottom: 12px;
    padding: 10px 14px;
    border-left: 4px solid var(--yellow);
    background: rgba(231, 199, 101, 0.12);
    color: #ffe6a1;
    border-radius: 0 4px 4px 0;
}

.dashboard-grid {
    flex: 1;
    display: grid;
    grid-template-columns: minmax(0, 1.6fr) 370px;
    gap: 16px;
    align-items: start;
}

/* ==========================================================================
   SCADA Diagram Stage & Overlaid Cards
   ========================================================================== */

.plant-stage-scroll-container {
    width: 100%;
    min-width: 0;
}

.plant-stage-mobile-hint {
    display: none;
}

.mobile-process-cards {
    display: none;
}

.plant-stage {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    border: 1px solid var(--line);
    background: #111d25;
    border-radius: 6px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
}

.plant-stage img {
    width: 100%;
    height: 100%;
    object-fit: fill;
    display: block;
}

.process-card {
    position: absolute;
    display: grid;
    gap: 4px;
    width: clamp(140px, 28%, 190px);
    padding: clamp(6px, 1.2vw, 10px);
    border: 1px solid rgba(197, 226, 232, 0.38);
    background: rgba(7, 15, 20, 0.88);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.35);
    border-radius: 4px;
    backdrop-filter: blur(4px);
    z-index: 2;
}

.process-card > span {
    color: var(--cyan);
    font-size: clamp(0.7rem, 1.3vw, 0.78rem);
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.process-card div {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 6px;
    border-top: 1px solid rgba(163, 199, 209, 0.18);
    padding-top: 4px;
}

.process-card small {
    color: var(--muted);
    font-size: clamp(0.68rem, 1.2vw, 0.76rem);
}

.process-card strong {
    color: var(--text);
    text-align: right;
    font-size: clamp(0.72rem, 1.3vw, 0.84rem);
    font-weight: 700;
}

/* ==========================================================================
   Equipment Tag Labels (Overlay Naranja Industrial con Contorno Negro)
   ========================================================================== */

.equipment-tag-label {
    position: absolute;
    display: flex;
    flex-direction: column;
    z-index: 1;
    pointer-events: none;
    user-select: none;
    border-left: 3px solid #ffb300;
    padding: 2px 6px 2px 6px;
    background: rgba(4, 9, 13, 0.72);
    border-radius: 0 4px 4px 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(2px);
}

.equipment-tag-label .tag-code {
    color: #ffe57f;
    font-size: clamp(0.58rem, 1.1vw, 0.74rem);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: 0.06em;
    -webkit-text-stroke: 0.6px #000;
    text-shadow: 
        -1px -1px 0 #000,  
         1px -1px 0 #000,
        -1px  1px 0 #000,
         1px  1px 0 #000,
         0    0   4px rgba(0, 0, 0, 0.9);
}

.equipment-tag-label .tag-name {
    color: #ffb74d;
    font-size: clamp(0.64rem, 1.25vw, 0.80rem);
    font-weight: 900;
    line-height: 1.15;
    letter-spacing: 0.05em;
    -webkit-text-stroke: 0.7px #000;
    text-shadow: 
        -1px -1px 0 #000,  
         1px -1px 0 #000,
        -1px  1px 0 #000,
         1px  1px 0 #000,
         0   -1px 0 #000,
         0    1px 0 #000,
        -1px  0   0 #000,
         1px  0   0 #000,
         0    0   6px rgba(0, 0, 0, 0.95);
}


.tag-ea101 {
    left: 4%;
    top: 9%;
}

.tag-fh201 {
    left: 8%;
    top: 48%;
}

.tag-sc301 {
    left: 33%;
    top: 36%;
}

.tag-fc401 {
    right: 14%;
    top: 50%;
}

.tag-tk101 {
    left: 17%;
    bottom: 24%;
}

.tag-tk501 {
    right: 20%;
    bottom: 24%;
}

.raw-quality-card {
    left: 2%;
    bottom: 7%;
}

.pump-intake-card {
    left: 2%;
    top: 15%;
}

.treated-quality-card {
    right: 2%;
    bottom: 20%;
}


.status-val-ok,
.status-box div strong.status-val-ok {
    color: #48d597 !important;
    font-weight: 800 !important;
}

.status-val-alarm,
.status-box div strong.status-val-alarm {
    color: #ff6b6b !important;
    font-weight: 800 !important;
}



/* ==========================================================================
   Side Panel & Equipment Control
   ========================================================================== */

.side-panel {
    display: grid;
    gap: 14px;
    align-content: start;
}

.panel-section {
    border: 1px solid var(--line);
    background: rgba(17, 31, 39, 0.88);
    padding: 14px;
    border-radius: 6px;
}

.equipment-row {
    display: grid;
    grid-template-columns: 44px minmax(0, 1fr) auto;
    gap: 10px;
    align-items: center;
    padding: 10px 0;
    border-top: 1px solid var(--line);
}

.equipment-row:first-of-type {
    border-top: 0;
}

.equipment-id {
    display: grid;
    place-items: center;
    width: 38px;
    height: 38px;
    border: 1px solid var(--line);
    color: var(--cyan);
    font-weight: 800;
    font-size: 0.95rem;
    border-radius: 4px;
    background: rgba(78, 200, 216, 0.08);
}

.equipment-main strong,
.equipment-main span {
    display: block;
}

.equipment-main strong {
    font-size: 0.95rem;
}

.equipment-main span {
    margin-top: 2px;
    font-size: 0.82rem;
}

.equipment-state.running {
    color: var(--green);
    font-weight: 700;
}

.equipment-state.stopped {
    color: var(--muted);
}

.equipment-actions {
    display: flex;
    gap: 8px;
}

.cmd,
.refresh-button {
    min-width: 52px;
    min-height: 38px;
    border: 1px solid var(--line);
    color: var(--text);
    cursor: pointer;
    border-radius: 4px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.2s ease;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

.cmd.start,
.refresh-button {
    background: rgba(72, 213, 151, 0.16);
    border-color: rgba(72, 213, 151, 0.38);
}

.cmd.stop {
    background: rgba(255, 107, 107, 0.15);
    border-color: rgba(255, 107, 107, 0.35);
}

.cmd.lit {
    font-weight: 800;
}

.cmd.start.lit {
    border-color: rgba(72, 213, 151, 0.95);
    background: rgba(72, 213, 151, 0.4);
    color: #eafff5;
    box-shadow: 0 0 16px rgba(72, 213, 151, 0.6), inset 0 0 10px rgba(72, 213, 151, 0.25);
}

.cmd.stop.lit {
    border-color: rgba(255, 107, 107, 0.92);
    background: rgba(255, 107, 107, 0.38);
    color: #fff0f0;
    box-shadow: 0 0 16px rgba(255, 107, 107, 0.55), inset 0 0 10px rgba(255, 107, 107, 0.2);
}

.metric-row,
.status-box div {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    padding: 7px 0;
    border-top: 1px solid var(--line);
    font-size: 0.9rem;
}

.metric-row:first-of-type,
.status-box div:first-of-type {
    border-top: 0;
}

.metric-row span,
.status-box span {
    color: var(--muted);
}

.metric-row small {
    color: var(--muted);
    font-weight: 500;
    margin-left: 3px;
}

/* ==========================================================================
   Configuration Page & WhatsApp Section
   ========================================================================== */

.config-page,
.alarm-page,
.history-page {
    padding: 20px 22px;
    flex: 1;
}

.notification-channels-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 20px;
}

.channel-header h2 {
    margin-bottom: 4px;
}

.channel-header p {
    margin: 0 0 12px 0;
    color: var(--muted);
    font-size: 0.85rem;
}

.email-form {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)) auto;
    gap: 10px;
    align-items: end;
    margin-bottom: 14px;
}

.whatsapp-form {
    grid-template-columns: minmax(130px, 1fr) minmax(150px, 1.2fr) minmax(130px, 1fr) auto;
}

.teach-agent-form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr auto;
    gap: 10px;
    align-items: end;
}

.email-form label {
    display: grid;
    gap: 4px;
    color: var(--muted);
    font-size: 0.84rem;
}

.email-form input,
.config-row input,
.config-row select {
    min-height: 38px;
    border: 1px solid var(--line);
    background: #0b151b;
    color: var(--text);
    padding: 0 10px;
    border-radius: 4px;
}

.email-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.empty-hint {
    color: var(--muted);
    font-size: 0.86rem;
    font-style: italic;
}

.email-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    border: 1px solid var(--line);
    background: rgba(78, 200, 216, 0.08);
    border-radius: 20px;
    font-size: 0.84rem;
}

.whatsapp-pill {
    background: rgba(37, 211, 102, 0.1);
    border-color: rgba(37, 211, 102, 0.35);
    justify-content: space-between;
}

.whatsapp-pill strong {
    color: var(--wa-green);
}

.wa-apikey-badge {
    display: inline-block;
    padding: 1px 6px;
    background: rgba(37, 211, 102, 0.2);
    border-radius: 4px;
    font-size: 0.72rem;
    color: #a7f3d0;
    margin-left: 6px;
}

.btn-remove-pill {
    border: none;
    background: transparent;
    color: var(--red);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0 4px;
    line-height: 1;
    border-radius: 50%;
}

.btn-remove-pill:hover {
    background: rgba(255, 107, 107, 0.2);
}

.config-list {
    display: grid;
    gap: 12px;
}

.config-row {
    display: grid;
    grid-template-columns: minmax(220px, 1.4fr) 70px 110px 110px 110px minmax(180px, 1fr) 100px;
    gap: 12px;
    align-items: end;
    padding: 14px;
    border: 1px solid var(--line);
    background: rgba(17, 31, 39, 0.82);
    border-radius: 6px;
}

.bool-limit-field {
    grid-column: span 2;
}

.btn-save-limit {
    min-width: 100px;
    min-height: 38px;
    white-space: nowrap;
    transition: all 0.25s ease;
}

.btn-save-limit.saved {
    background: rgba(72, 213, 151, 0.35) !important;
    border-color: #48d597 !important;
    color: #eafff5 !important;
    box-shadow: 0 0 14px rgba(72, 213, 151, 0.5);
    font-weight: 800;
}


.config-main {
    display: grid;
    gap: 4px;
}

.config-main strong {
    font-size: 0.95rem;
}

.config-main span,
.config-main small {
    color: var(--muted);
    font-size: 0.84rem;
}

.config-row label {
    display: grid;
    gap: 4px;
    color: var(--muted);
    font-size: 0.84rem;
}

.config-row input[type="checkbox"] {
    width: 20px;
    min-height: 20px;
    accent-color: var(--cyan);
}

.toggle-field {
    align-content: end;
}

/* ==========================================================================
   Alarm & History Pages
   ========================================================================== */

.alarm-summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.alarm-count {
    display: grid;
    place-items: center;
    min-width: 56px;
    height: 42px;
    border: 1px solid rgba(255, 107, 107, 0.36);
    background: rgba(255, 107, 107, 0.14);
    color: #ffd7d7;
    font-size: 1.3rem;
    border-radius: 4px;
}

.history-table {
    width: 100%;
    border-collapse: collapse;
    border: 1px solid var(--line);
    background: rgba(17, 31, 39, 0.72);
    border-radius: 6px;
    overflow: hidden;
}

.history-table th,
.history-table td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--line);
    text-align: left;
    font-size: 0.88rem;
}

.history-table th {
    color: var(--cyan);
    font-weight: 700;
    background: rgba(78, 200, 216, 0.08);
}

.severity {
    display: inline-flex;
    min-width: 76px;
    justify-content: center;
    padding: 3px 8px;
    border: 1px solid var(--line);
    background: rgba(147, 169, 175, 0.12);
    color: var(--muted);
    font-size: 0.8rem;
    font-weight: 700;
    border-radius: 4px;
}

.severity.critical,
.severity.high {
    border-color: rgba(255, 107, 107, 0.45);
    background: rgba(255, 107, 107, 0.18);
    color: #ffd1d1;
}

.severity.medium {
    border-color: rgba(231, 199, 101, 0.45);
    background: rgba(231, 199, 101, 0.15);
    color: #ffe6a1;
}

.history-toolbar {
    display: flex;
    align-items: end;
    gap: 12px;
    margin-bottom: 16px;
    padding: 14px;
    border: 1px solid var(--line);
    background: rgba(17, 31, 39, 0.88);
    border-radius: 6px;
}

.history-toolbar select {
    min-width: 280px;
    height: 38px;
    border: 1px solid var(--line);
    background: #0b151b;
    color: var(--text);
    padding: 0 10px;
    border-radius: 4px;
}

.trend-panel {
    margin-bottom: 16px;
    padding: 14px;
    border: 1px solid var(--line);
    background: rgba(17, 31, 39, 0.82);
    border-radius: 6px;
}

.trend-chart {
    width: 100%;
    min-height: 340px;
    background: linear-gradient(180deg, #070b0e 0%, #0d171d 100%);
    border: 1px solid rgba(78, 200, 216, 0.12);
    border-radius: 6px;
}

#blazor-error-ui {
    background: #fff3c4;
    bottom: 0;
    color: #111;
    display: none;
    left: 0;
    padding: 0.7rem 1.25rem;
    position: fixed;
    width: 100%;
    z-index: 1000;
}

/* ==========================================================================
   Responsive Media Queries (Tablets, Celulares en Vertical / Móvil)
   ========================================================================== */

@media (max-width: 1100px) {
    .app-shell {
        grid-template-columns: 1fr;
        min-height: 100dvh;
    }

    .sidebar {
        position: sticky;
        top: 0;
        z-index: 1000;
        border-right: 0;
        border-bottom: 1px solid var(--line);
        background: #0a1116;
    }

    .nav-shell {
        display: flex !important;
        flex-direction: column !important;
        align-items: stretch !important;
        justify-content: flex-start !important;
        padding: 10px 14px !important;
        gap: 0 !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }

    .nav-top-bar {
        display: flex !important;
        flex-direction: row !important;
        align-items: center !important;
        justify-content: space-between !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }

    .mobile-nav-toggle {
        display: flex !important;
        align-items: center !important;
        justify-content: center !important;
        width: 42px !important;
        height: 42px !important;
        border-radius: 8px !important;
        border: 1px solid rgba(78, 200, 216, 0.35) !important;
        background: rgba(78, 200, 216, 0.1) !important;
        color: var(--cyan) !important;
        font-size: 1.25rem !important;
        cursor: pointer !important;
        transition: all 0.2s ease !important;
        flex-shrink: 0 !important;
    }

    .mobile-nav-toggle:active {
        background: rgba(78, 200, 216, 0.25) !important;
    }

    .nav-collapsible {
        display: none !important;
        width: 100% !important;
    }

    .nav-collapsible.open,
    .nav-shell.mobile-open .nav-collapsible {
        display: flex !important;
        flex-direction: column !important;
        gap: 10px !important;
        width: 100% !important;
        padding: 12px 0 6px 0 !important;
        border-top: 1px solid rgba(78, 200, 216, 0.15) !important;
        margin-top: 8px !important;
        max-height: calc(100dvh - 65px) !important;
        overflow-y: auto !important;
    }

    .nav-shell nav {
        display: grid;
        grid-template-columns: 1fr;
        gap: 6px;
        width: 100%;
    }

    .nav-link {
        white-space: nowrap;
        padding: 12px 14px;
        font-size: 0.95rem;
        border-radius: 6px;
    }

    .dashboard-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .notification-channels-grid {
        grid-template-columns: 1fr;
    }

    .config-row {
        grid-template-columns: 1fr 90px 130px 130px;
    }

    .config-row > button.refresh-button {
        width: 100%;
        grid-column: 1 / -1;
    }

    .ai-workspace-layout {
        grid-template-columns: 1fr;
        height: auto;
        min-height: unset;
    }
}

/* Modo celular vertical y pantallas angostas */
@media (max-width: 768px) {
    .scada-page,
    .config-page,
    .alarm-page,
    .history-page,
    .admin-users-page,
    .ai-page,
    .simulator-page {
        padding: 10px 12px;
    }

    .scada-header {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
    }

    .scada-header .header-actions {
        display: flex;
        flex-direction: column;
        gap: 8px;
        width: 100%;
    }

    .scada-header .header-actions button,
    .scada-header .header-actions a {
        width: 100%;
        justify-content: center;
        min-height: 42px;
        text-align: center;
    }

    /* Selector de modo y Showroom en Home */
    .mode-selector-strip {
        flex-direction: column;
        align-items: stretch;
        gap: 8px;
        width: 100%;
        padding: 10px 12px;
    }

    .mode-buttons-group {
        display: grid;
        grid-template-columns: 1fr;
        gap: 6px;
        width: 100%;
    }

    .btn-mode {
        width: 100%;
        justify-content: center;
        min-height: 44px;
        font-size: 0.88rem;
    }

    .system-strip {
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
        align-items: center;
        font-size: 0.8rem;
        gap: 8px 10px;
        padding: 8px 10px;
    }

    .showroom-banner {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
        padding: 10px 12px;
    }

    .showroom-actions {
        display: grid;
        grid-template-columns: 1fr;
        gap: 6px;
        width: 100%;
    }

    .btn-scenario {
        width: 100%;
        min-height: 42px;
        justify-content: center;
        text-align: center;
    }

    .plc-lost-alert-banner {
        flex-direction: column;
        text-align: center;
        gap: 8px;
    }

    .global-alarm-banner {
        grid-template-columns: auto minmax(0, 1fr);
        padding: 8px 10px;
        gap: 8px;
    }

    .global-alarm-banner a {
        grid-column: 1 / -1;
        width: 100%;
        text-align: center;
        padding: 8px;
        min-height: 40px;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    /* Contenedor del mímico SCADA y Telemetría Móvil */
    .plant-stage-scroll-container {
        width: 100% !important;
        max-width: 100% !important;
        min-width: 0 !important;
        overflow: hidden !important;
    }

    .plant-stage {
        width: 100% !important;
        max-width: 100% !important;
        min-width: 0 !important;
        aspect-ratio: 16 / 10;
        border-radius: 8px;
        overflow: hidden;
    }

    .plant-stage .process-card {
        display: none !important;
    }

    .equipment-tag-label {
        display: none !important;
    }

    .mobile-process-cards {
        display: grid !important;
        grid-template-columns: 1fr;
        gap: 10px;
        margin-top: 12px;
        width: 100%;
        box-sizing: border-box;
    }

    .mobile-metric-card {
        background: rgba(17, 31, 39, 0.95);
        border: 1px solid rgba(78, 200, 216, 0.25);
        border-radius: 8px;
        padding: 12px 14px;
        display: flex;
        flex-direction: column;
        gap: 6px;
        box-sizing: border-box;
    }

    .metric-card-header {
        font-size: 0.88rem;
        font-weight: 800;
        color: var(--cyan);
        text-transform: uppercase;
        letter-spacing: 0.5px;
        border-bottom: 1px solid rgba(78, 200, 216, 0.15);
        padding-bottom: 4px;
    }

    .metric-card-row {
        display: flex;
        justify-content: space-between;
        align-items: center;
        font-size: 0.86rem;
        color: #cbd5e1;
    }

    .metric-card-row strong {
        color: #fff;
        font-size: 0.95rem;
        font-family: monospace;
        font-weight: 700;
    }

    /* Comandos de equipos táctiles y de fácil acceso */
    .equipment-row {
        grid-template-columns: 38px minmax(0, 1fr);
        gap: 10px;
        padding: 10px;
    }

    .equipment-actions {
        grid-column: 1 / -1;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 8px;
        margin-top: 6px;
    }

    .equipment-actions .cmd {
        min-height: 48px;
        font-size: 1.05rem;
        font-weight: 700;
        border-radius: 6px;
    }

    /* IA supervisor y chat en mobile */
    .ai-workspace-layout {
        grid-template-columns: 1fr !important;
        height: auto !important;
        min-height: unset !important;
        gap: 14px;
    }

    .ai-sidebar-column {
        height: auto;
        max-height: none;
        overflow-y: visible;
        padding-right: 0;
    }

    .ai-chat-dominant-column {
        min-height: 480px;
        display: flex;
        flex-direction: column;
    }

    .dominant-chat-feed {
        padding: 12px 10px;
        min-height: 280px;
    }

    .dominant-chat-bubble {
        max-width: 96%;
        font-size: 0.88rem;
        padding: 10px 12px;
    }

    .dominant-quick-prompts {
        padding: 8px 10px;
        gap: 6px;
    }

    .btn-quick-prompt {
        font-size: 0.78rem;
        padding: 6px 10px;
    }

    .dominant-input-bar {
        padding: 10px;
        gap: 8px;
    }

    .dominant-input-bar input {
        font-size: 0.92rem;
        padding: 10px 12px;
    }

    .dominant-input-bar button {
        min-height: 42px;
        padding: 0 14px;
    }

    .ai-overview-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .ai-header-banner {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
        padding: 12px 14px;
    }

    .btn-ai-primary {
        width: 100%;
        justify-content: center;
        min-height: 44px;
    }

    /* Históricos en mobile */
    .history-toolbar {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
    }

    .history-toolbar label {
        display: flex;
        flex-direction: column;
        gap: 4px;
        width: 100%;
    }

    .history-toolbar select {
        width: 100% !important;
        min-width: 0 !important;
        height: 42px;
    }

    .history-toolbar button {
        width: 100%;
        min-height: 42px;
        justify-content: center;
    }

    .trend-panel {
        padding: 10px;
        overflow-x: auto;
    }

    .trend-chart {
        width: 100%;
        min-width: 500px;
        height: auto;
        min-height: 260px;
    }

    .trend-head {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .trend-legend {
        flex-wrap: wrap;
        gap: 8px;
    }

    .history-table {
        display: block;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        width: 100%;
        white-space: nowrap;
    }

    /* Configuración en mobile */
    .teach-agent-form-grid {
        grid-template-columns: 1fr !important;
        gap: 10px;
        width: 100%;
    }

    .teach-agent-form-grid button {
        width: 100%;
        min-height: 42px;
        justify-content: center;
    }

    .email-form,
    .whatsapp-form {
        grid-template-columns: 1fr !important;
        gap: 10px;
    }

    .email-form button,
    .whatsapp-form button {
        min-height: 42px;
        width: 100%;
        justify-content: center;
    }

    .config-row {
        grid-template-columns: 1fr !important;
        gap: 10px;
        padding: 12px;
    }

    .config-row input,
    .config-row select {
        min-height: 42px;
        width: 100%;
    }

    .btn-save-limit {
        min-height: 44px;
        width: 100%;
        justify-content: center;
    }

    /* Panel Admin Usuarios en mobile */
    .admin-users-page {
        padding: 10px 12px;
    }

    .admin-header {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
    }

    .admin-stats {
        display: grid;
        grid-template-columns: 1fr;
        gap: 6px;
        width: 100%;
    }

    .stat-badge {
        text-align: center;
        padding: 8px 10px;
        font-size: 0.82rem;
    }

    .admin-filters {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 6px;
        width: 100%;
    }

    .filter-btn {
        text-align: center;
        padding: 8px;
        font-size: 0.85rem;
    }

    .users-table-wrapper {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        width: 100%;
    }

    .users-table {
        min-width: 650px;
    }

    .btn-action {
        width: 36px;
        height: 36px;
        font-size: 1.1rem;
    }

    /* Autenticación en mobile */
    .auth-body {
        padding: 1rem 0.5rem;
    }

    .auth-card {
        padding: 1.5rem 1rem;
        border-radius: 12px;
    }

    .auth-form-grid {
        grid-template-columns: 1fr;
    }

    .btn-auth-primary {
        min-height: 46px;
        font-size: 1.05rem;
    }
}

@media (max-width: 480px) {
    .brand strong {
        font-size: 0.85rem;
    }

    .nav-link {
        padding: 10px 12px;
        font-size: 0.9rem;
    }

    .admin-filters {
        grid-template-columns: 1fr;
    }

    .auth-card h1 {
        font-size: 1.35rem;
    }
}

/* ==========================================================================
   Módulo de Inteligencia Artificial (HIDROCONTROL PTAP V2.2)
   ========================================================================== */

.ai-nav-pill {
    background: linear-gradient(135deg, #7928ca, #ff0080);
    color: #ffffff;
    font-size: 0.64rem;
    font-weight: 800;
    padding: 2px 6px;
    border-radius: 10px;
    margin-left: 6px;
    letter-spacing: 0.5px;
    box-shadow: 0 0 8px rgba(255, 0, 128, 0.4);
}

.ai-page {
    padding: 20px;
    display: grid;
    gap: 20px;
    max-width: 1600px;
    margin: 0 auto;
}

.ai-header-banner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    background: linear-gradient(90deg, rgba(28, 18, 48, 0.85) 0%, rgba(14, 28, 38, 0.85) 100%);
    border: 1px solid rgba(168, 85, 247, 0.35);
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.ai-header-title h1 {
    font-size: 1.5rem;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 10px;
    color: #f3e8ff;
}

.ai-header-title p {
    margin: 4px 0 0 0;
    color: var(--muted);
    font-size: 0.88rem;
}

.ai-header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.btn-ai-primary {
    background: linear-gradient(135deg, #9333ea 0%, #c026d3 100%);
    color: #ffffff;
    border: none;
    padding: 10px 18px;
    border-radius: 6px;
    font-weight: 700;
    font-size: 0.92rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s ease;
    box-shadow: 0 4px 14px rgba(192, 38, 211, 0.35);
}

.btn-ai-primary:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 6px 18px rgba(192, 38, 211, 0.55);
}

.btn-ai-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Resumen Ejecutivo Superior */
.ai-overview-grid {
    display: grid;
    grid-template-columns: 280px 1fr 1fr;
    gap: 16px;
}

.ai-score-card {
    background: rgba(17, 31, 39, 0.85);
    border: 1px solid rgba(168, 85, 247, 0.25);
    border-radius: 8px;
    padding: 18px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: 8px;
}

.ai-score-circle {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    border: 4px solid #a855f7;
    display: grid;
    place-items: center;
    font-size: 1.6rem;
    font-weight: 800;
    color: #f3e8ff;
    background: rgba(168, 85, 247, 0.12);
    box-shadow: 0 0 20px rgba(168, 85, 247, 0.25);
}

.ai-status-badge {
    font-size: 0.8rem;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 12px;
    text-transform: uppercase;
}

.ai-status-badge.optimo { background: rgba(72, 213, 151, 0.2); color: #48d597; border: 1px solid #48d597; }
.ai-status-badge.estable { background: rgba(78, 200, 216, 0.2); color: #4ec8d8; border: 1px solid #4ec8d8; }
.ai-status-badge.atencion { background: rgba(231, 199, 101, 0.2); color: #e7c765; border: 1px solid #e7c765; }
.ai-status-badge.critico { background: rgba(255, 107, 107, 0.2); color: #ff6b6b; border: 1px solid #ff6b6b; }

.ai-summary-card {
    background: rgba(17, 31, 39, 0.85);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 18px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.ai-summary-card h3 {
    margin: 0;
    font-size: 1rem;
    color: var(--cyan);
    display: flex;
    align-items: center;
    gap: 8px;
}

.ai-summary-card p {
    margin: 0;
    font-size: 0.9rem;
    line-height: 1.45;
    color: #d1d5db;
}

/* Grilla Principal de Trabajo: Chat Dominante + Panel Lateral Compacto */
.ai-workspace-layout {
    display: grid;
    grid-template-columns: 360px minmax(0, 1fr);
    gap: 20px;
    align-items: stretch;
    height: calc(100vh - 150px);
    min-height: 720px;
}

.ai-sidebar-column {
    display: flex;
    flex-direction: column;
    gap: 14px;
    height: 100%;
    overflow-y: auto;
    padding-right: 4px;
}

/* Tarjeta Compacta de Estado y Salud */
.ai-sidebar-health-card {
    background: rgba(17, 31, 39, 0.9);
    border: 1px solid rgba(168, 85, 247, 0.3);
    border-radius: 8px;
    padding: 14px 16px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.ai-health-top-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.ai-score-pill {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1.1rem;
    font-weight: 800;
    color: #f3e8ff;
}

.ai-score-pill small {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--muted);
    text-transform: uppercase;
}

/* Asesor de Dosificación Compacto */
.ai-sidebar-dosing-section {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.dosing-card-compact {
    background: rgba(17, 31, 39, 0.9);
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 12px 14px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    border-left: 3px solid #a855f7;
}

.dosing-card-compact.active {
    border-left-color: #10b981;
}

.dosing-compact-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.dosing-compact-header strong {
    font-size: 0.88rem;
    color: #f3e8ff;
}

.dosing-compact-vals {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(7, 11, 14, 0.7);
    padding: 8px 10px;
    border-radius: 4px;
    font-size: 0.82rem;
}

.dosing-compact-vals small {
    color: var(--muted);
    display: block;
    font-size: 0.72rem;
}

.dosing-compact-vals strong {
    color: #c084fc;
    font-size: 0.96rem;
}

.dosing-compact-actions {
    display: flex;
    gap: 6px;
}

.btn-approve-compact {
    flex: 1;
    background: #059669;
    color: #ffffff;
    border: none;
    padding: 6px 10px;
    border-radius: 4px;
    font-weight: 700;
    font-size: 0.78rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-approve-compact:hover {
    background: #10b981;
}

.btn-discard-compact {
    background: transparent;
    color: var(--muted);
    border: 1px solid var(--line);
    padding: 6px 10px;
    border-radius: 4px;
    font-size: 0.78rem;
    cursor: pointer;
}

.btn-discard-compact:hover {
    background: rgba(255, 107, 107, 0.15);
    color: #ff8e8e;
}

/* Área Central Dominante: Chat con Supervisor Inteligente */
.ai-chat-dominant-area {
    background: rgba(17, 31, 39, 0.95);
    border: 1px solid rgba(168, 85, 247, 0.35);
    border-radius: 10px;
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
}

.dominant-chat-header {
    padding: 16px 22px;
    border-bottom: 1px solid rgba(168, 85, 247, 0.2);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(90deg, rgba(28, 18, 48, 0.9) 0%, rgba(14, 28, 38, 0.9) 100%);
}

.dominant-chat-header h2 {
    margin: 0;
    font-size: 1.18rem;
    display: flex;
    align-items: center;
    gap: 10px;
    color: #f3e8ff;
}

.dominant-chat-header p {
    margin: 2px 0 0 0;
    font-size: 0.82rem;
    color: var(--muted);
}

.dominant-chat-feed {
    flex: 1;
    overflow-y: auto;
    padding: 22px;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.dominant-chat-bubble {
    max-width: 88%;
    padding: 14px 18px;
    border-radius: 10px;
    font-size: 0.92rem;
    line-height: 1.5;
}

.dominant-chat-bubble.user {
    align-self: flex-end;
    background: #2563eb;
    color: #ffffff;
    border-bottom-right-radius: 2px;
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
}

.dominant-chat-bubble.assistant {
    align-self: flex-start;
    background: rgba(30, 41, 59, 0.95);
    border: 1px solid rgba(168, 85, 247, 0.35);
    color: #f1f5f9;
    border-bottom-left-radius: 2px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
}

.dominant-chat-bubble p {
    margin: 0 0 10px 0;
}

.dominant-chat-bubble p:last-child {
    margin-bottom: 0;
}

.dominant-chat-bubble ul,
.dominant-chat-bubble ol {
    margin: 6px 0;
    padding-left: 20px;
}

.dominant-chat-bubble li {
    margin-bottom: 4px;
}

.dominant-quick-prompts {
    padding: 10px 20px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    border-top: 1px solid var(--line);
    background: rgba(11, 21, 27, 0.6);
}

.dominant-input-bar {
    padding: 14px 20px;
    display: flex;
    gap: 12px;
    border-top: 1px solid var(--line);
    background: #0b151b;
}

.dominant-input-bar input {
    flex: 1;
    background: rgba(17, 31, 39, 0.95);
    border: 1px solid rgba(168, 85, 247, 0.3);
    border-radius: 8px;
    padding: 12px 18px;
    color: #ffffff;
    font-size: 0.96rem;
    transition: all 0.2s ease;
}

.dominant-input-bar input:focus {
    outline: none;
    border-color: #c084fc;
    box-shadow: 0 0 14px rgba(192, 132, 252, 0.35);
}

.anomaly-item {
    background: rgba(17, 31, 39, 0.85);
    border-radius: 6px;
    padding: 12px 16px;
    margin-bottom: 10px;
    border-left: 4px solid var(--line);
}

.anomaly-item.critico { border-left-color: #ff6b6b; }
.anomaly-item.advertencia { border-left-color: #e7c765; }
.anomaly-item.info { border-left-color: #4ec8d8; }

.anomaly-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 4px;
}

.anomaly-item-header strong {
    font-size: 0.92rem;
    color: #f3f4f6;
}

.anomaly-item-header span {
    font-size: 0.76rem;
    color: var(--muted);
}

.anomaly-item p {
    margin: 4px 0;
    font-size: 0.84rem;
    color: #cbd5e1;
}

.anomaly-item small {
    display: block;
    color: #94a3b8;
    font-size: 0.78rem;
    margin-top: 4px;
}

.audit-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.82rem;
}

.audit-table th {
    text-align: left;
    padding: 8px;
    color: var(--cyan);
    border-bottom: 1px solid var(--line);
    font-size: 0.78rem;
}

.audit-table td {
    padding: 8px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    color: #d1d5db;
}

/* Barra de Acciones Rápidas y Seguridad de Salidas PLC */
.ai-outputs-bar {
    background: rgba(17, 31, 39, 0.95);
    border: 1px solid rgba(255, 107, 107, 0.35);
    border-radius: 8px;
    padding: 16px 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.ai-outputs-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.ai-outputs-header h3 {
    margin: 0;
    font-size: 1.05rem;
    color: #fecaca;
    display: flex;
    align-items: center;
    gap: 8px;
}

.ai-outputs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)) auto;
    gap: 14px;
    align-items: center;
}

.output-ctrl-card {
    background: rgba(7, 11, 14, 0.85);
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 12px 14px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
}

.output-ctrl-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.output-ctrl-info strong {
    font-size: 0.92rem;
    color: #f3f4f6;
}

.output-ctrl-info small {
    font-size: 0.78rem;
    color: var(--muted);
}

.output-ctrl-actions {
    display: flex;
    gap: 6px;
}

.btn-ctrl-on {
    background: rgba(72, 213, 151, 0.15);
    border: 1px solid #48d597;
    color: #48d597;
    padding: 6px 12px;
    border-radius: 4px;
    font-weight: 700;
    font-size: 0.82rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-ctrl-on:hover:not(:disabled) {
    background: #48d597;
    color: #042215;
    box-shadow: 0 0 10px rgba(72, 213, 151, 0.4);
}

.btn-ctrl-on.active {
    background: #48d597;
    color: #042215;
    font-weight: 800;
}

.btn-ctrl-off {
    background: rgba(255, 107, 107, 0.15);
    border: 1px solid #ff6b6b;
    color: #ff6b6b;
    padding: 6px 12px;
    border-radius: 4px;
    font-weight: 700;
    font-size: 0.82rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-ctrl-off:hover:not(:disabled) {
    background: #ff6b6b;
    color: #ffffff;
    box-shadow: 0 0 10px rgba(255, 107, 107, 0.4);
}

.btn-ctrl-off.active {
    background: #ff6b6b;
    color: #ffffff;
    font-weight: 800;
}

.btn-emergency-stop {
    background: linear-gradient(135deg, #dc2626 0%, #991b1b 100%);
    border: 1px solid #f87171;
    color: #ffffff;
    padding: 12px 18px;
    border-radius: 6px;
    font-weight: 800;
    font-size: 0.88rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s ease;
    box-shadow: 0 0 14px rgba(220, 38, 38, 0.45);
    white-space: nowrap;
}

.btn-emergency-stop:hover:not(:disabled) {
    transform: scale(1.02);
    box-shadow: 0 0 20px rgba(220, 38, 38, 0.7);
}

/* Tarjeta interactiva de acción dentro del chat de IA */
.chat-action-card {
    margin-top: 10px;
    background: rgba(14, 21, 28, 0.95);
    border: 1px solid rgba(248, 113, 113, 0.4);
    border-radius: 6px;
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.chat-action-card.start {
    border-color: rgba(72, 213, 151, 0.4);
}

.chat-action-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.82rem;
    font-weight: 700;
}

.chat-action-header.stop {
    color: #fca5a5;
}

.chat-action-header.start {
    color: #86efac;
}

.chat-action-body {
    font-size: 0.84rem;
    color: #cbd5e1;
    line-height: 1.4;
}

.chat-action-btns {
    display: flex;
    gap: 8px;
    margin-top: 4px;
}

.btn-chat-execute {
    background: #dc2626;
    color: #ffffff;
    border: none;
    padding: 7px 12px;
    border-radius: 4px;
    font-weight: 700;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.btn-chat-execute.start {
    background: #059669;
}

.btn-chat-execute:hover {
    filter: brightness(1.15);
    box-shadow: 0 0 10px rgba(220, 38, 38, 0.5);
}

.btn-chat-cancel {
    background: transparent;
    color: var(--muted);
    border: 1px solid var(--line);
    padding: 7px 12px;
    border-radius: 4px;
    font-weight: 600;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-chat-cancel:hover {
    background: rgba(255, 255, 255, 0.08);
    color: #ffffff;
}

.chat-action-status-pill {
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.76rem;
    font-weight: 700;
}

.chat-action-status-pill.executed {
    background: rgba(72, 213, 151, 0.2);
    color: #48d597;
    border: 1px solid #48d597;
}

.chat-action-status-pill.cancelled {
    background: rgba(148, 163, 184, 0.2);
    color: #94a3b8;
    border: 1px solid #94a3b8;
}

/* ==========================================================================
   Selector de Modo Operativo y Showroom de Demostración
   ========================================================================== */

.mode-selector-strip {
    display: flex;
    align-items: center;
    gap: 12px;
    background: rgba(17, 31, 39, 0.85);
    border: 1px solid var(--line);
    padding: 6px 14px;
    border-radius: 8px;
}

.mode-label {
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--muted);
}

.mode-buttons-group {
    display: flex;
    gap: 6px;
}

.btn-mode {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--line);
    color: var(--text);
    padding: 6px 12px;
    border-radius: 5px;
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.btn-mode:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--cyan);
}

.btn-mode.active.auto {
    background: rgba(78, 200, 216, 0.2);
    border-color: var(--cyan);
    color: #fff;
    box-shadow: 0 0 12px rgba(78, 200, 216, 0.35);
}

.btn-mode.active.manual {
    background: rgba(231, 199, 101, 0.2);
    border-color: var(--yellow);
    color: #fff;
    box-shadow: 0 0 12px rgba(231, 199, 101, 0.35);
}

.btn-mode.active.plc {
    background: rgba(72, 213, 151, 0.2);
    border-color: var(--green);
    color: #fff;
    box-shadow: 0 0 12px rgba(72, 213, 151, 0.35);
}

.status-text.connected {
    color: var(--green);
    font-weight: 700;
}

.status-text.disconnected {
    color: var(--red);
    font-weight: 800;
    animation: pulse-red 1.5s infinite;
}

@keyframes pulse-red {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.showroom-banner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    background: linear-gradient(90deg, rgba(231, 199, 101, 0.12), rgba(17, 31, 39, 0.95));
    border: 1px solid rgba(231, 199, 101, 0.4);
    padding: 10px 18px;
    border-radius: 8px;
    margin-bottom: 16px;
}

.showroom-info {
    font-size: 0.88rem;
    color: #fff;
}

.showroom-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.btn-scenario {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--line);
    color: var(--text);
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-scenario:hover {
    filter: brightness(1.2);
}

.btn-scenario.active {
    border-color: #fff;
    background: rgba(255, 255, 255, 0.2);
}

.btn-scenario.rain { border-color: rgba(78, 200, 216, 0.6); }
.btn-scenario.rain.active { background: rgba(78, 200, 216, 0.25); color: #fff; }

.btn-scenario.warn { border-color: rgba(231, 199, 101, 0.6); }
.btn-scenario.warn.active { background: rgba(231, 199, 101, 0.25); color: #fff; }

.btn-scenario.danger { border-color: rgba(255, 107, 107, 0.6); }
.btn-scenario.danger.active { background: rgba(255, 107, 107, 0.25); color: #fff; }

.btn-scenario.disconnect {
    border-color: #ff4757;
    background: rgba(255, 71, 87, 0.15);
    color: #ff6b81;
}

.btn-scenario.disconnect.active {
    background: #ff4757;
    color: #fff;
}

.plc-lost-alert-banner {
    display: flex;
    align-items: center;
    gap: 16px;
    background: linear-gradient(90deg, rgba(220, 38, 38, 0.25), rgba(17, 31, 39, 0.95));
    border: 2px solid #ef4444;
    padding: 14px 20px;
    border-radius: 8px;
    margin-bottom: 16px;
    animation: alert-glow 2s infinite alternate;
}

.plc-lost-alert-banner .alert-icon {
    font-size: 2rem;
}

.plc-lost-alert-banner .alert-body strong {
    color: #fca5a5;
    font-size: 0.98rem;
    letter-spacing: 0.04em;
    display: block;
    margin-bottom: 4px;
}

.plc-lost-alert-banner .alert-body p {
    margin: 0;
    color: #e2e8f0;
    font-size: 0.85rem;
}

@keyframes alert-glow {
    0% { box-shadow: 0 0 5px rgba(239, 68, 68, 0.2); }
    100% { box-shadow: 0 0 20px rgba(239, 68, 68, 0.5); }
}


/* ═══════════════════════════════════════════════════════════
   SISTEMA DE AUTENTICACIÓN — Auth Layout, Login, Register
   ═══════════════════════════════════════════════════════════ */

.auth-body {
    margin: 0;
    padding: 0;
    min-height: 100vh;
    background: #060d12;
    font-family: 'Segoe UI', system-ui, sans-serif;
}

.auth-page-wrapper {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding: 2rem 1rem;
}

.auth-bg-pattern {
    position: fixed;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 50% at 20% 40%, rgba(0,180,216,0.08) 0%, transparent 60%),
        radial-gradient(ellipse 60% 40% at 80% 70%, rgba(72,213,151,0.05) 0%, transparent 50%),
        repeating-linear-gradient(0deg, transparent, transparent 40px, rgba(0,180,216,0.02) 40px, rgba(0,180,216,0.02) 41px),
        repeating-linear-gradient(90deg, transparent, transparent 40px, rgba(0,180,216,0.02) 40px, rgba(0,180,216,0.02) 41px);
    z-index: 0;
}

.auth-main { position: relative; z-index: 1; width: 100%; display: flex; justify-content: center; }
.auth-page-footer { position: relative; z-index: 1; margin-top: 2rem; color: #4a6070; font-size: 0.75rem; text-align: center; }
.auth-page-footer a { color: #4ec8d8; text-decoration: none; }

/* Auth Card */
.auth-card {
    background: linear-gradient(145deg, #0f1e2a 0%, #0a1520 100%);
    border: 1px solid rgba(78,200,216,0.2);
    border-radius: 16px;
    padding: 2.5rem 2rem;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.5), 0 0 0 1px rgba(78,200,216,0.05);
}
.auth-card-wide { max-width: 680px; }

/* Logo */
.auth-logo { text-align: center; margin-bottom: 2rem; }
.auth-logo img { height: 60px; margin-bottom: 0.75rem; }
.auth-logo h1 { font-size: 1.6rem; font-weight: 700; color: #4ec8d8; margin: 0; letter-spacing: 3px; }
.auth-logo p  { color: #4a6070; margin: 0.25rem 0 0; font-size: 0.85rem; }

/* Fields */
.auth-field { margin-bottom: 1.2rem; display: flex; flex-direction: column; gap: 0.35rem; }
.auth-field label { color: #93a9af; font-size: 0.8rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; }
.auth-field input,
.auth-field textarea,
.auth-field select {
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(78,200,216,0.2);
    border-radius: 8px;
    color: #e8f4f6;
    padding: 0.65rem 0.85rem;
    font-size: 0.95rem;
    transition: border-color 0.2s, box-shadow 0.2s;
    outline: none;
    width: 100%;
    box-sizing: border-box;
}
.auth-field input:focus, .auth-field textarea:focus {
    border-color: rgba(78,200,216,0.6);
    box-shadow: 0 0 0 3px rgba(78,200,216,0.1);
}
.auth-field input::placeholder, .auth-field textarea::placeholder { color: #354a53; }
.auth-field.auth-checkbox { flex-direction: row; align-items: center; gap: 0.5rem; }
.auth-field.auth-checkbox input { width: auto; }
.auth-hint { color: #4a6070; font-size: 0.75rem; }

/* Register grid */
.auth-form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 1rem; }
.auth-field-full { grid-column: 1 / -1; }
@media (max-width: 600px) { .auth-form-grid { grid-template-columns: 1fr; } }

/* Terms */
.auth-terms { display: flex; align-items: flex-start; gap: 0.5rem; margin: 1rem 0; color: #93a9af; font-size: 0.82rem; line-height: 1.4; }
.auth-terms input { flex-shrink: 0; margin-top: 2px; }

/* Buttons */
.btn-auth-primary {
    width: 100%;
    padding: 0.75rem;
    background: linear-gradient(135deg, #0077a8 0%, #00b4d8 100%);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: opacity 0.2s, transform 0.1s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 0.5rem;
}
.btn-auth-primary:hover:not(:disabled) { opacity: 0.9; }
.btn-auth-primary:active:not(:disabled) { transform: scale(0.98); }
.btn-auth-primary:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-auth-secondary {
    display: inline-block;
    padding: 0.6rem 1.2rem;
    background: rgba(78,200,216,0.1);
    color: #4ec8d8;
    border: 1px solid rgba(78,200,216,0.3);
    border-radius: 8px;
    text-decoration: none;
    font-size: 0.9rem;
    transition: background 0.2s;
}
.btn-auth-secondary:hover { background: rgba(78,200,216,0.2); }

/* Alerts */
.auth-alert { padding: 0.75rem 1rem; border-radius: 8px; margin-bottom: 1.2rem; font-size: 0.9rem; display: flex; align-items: center; gap: 0.5rem; }
.auth-alert-error  { background: rgba(239,68,68,0.12);  border: 1px solid rgba(239,68,68,0.3);  color: #f87171; }
.auth-alert-success{ background: rgba(72,213,151,0.12); border: 1px solid rgba(72,213,151,0.3); color: #48d597; }

/* Success box */
.auth-success-box { text-align: center; padding: 1.5rem 0; }
.auth-success-icon { font-size: 3rem; margin-bottom: 1rem; }
.auth-success-box h3 { color: #48d597; margin: 0 0 0.75rem; }
.auth-success-box p  { color: #93a9af; font-size: 0.9rem; line-height: 1.6; margin-bottom: 1.5rem; }

/* Pending */
.auth-pending-icon { font-size: 3rem; text-align: center; margin-bottom: 1rem; }
.auth-card h2 { color: #e8f4f6; text-align: center; margin-bottom: 1rem; }
.auth-card p  { color: #93a9af; font-size: 0.9rem; line-height: 1.6; }

/* Footer link */
.auth-footer { margin-top: 1.5rem; text-align: center; color: #4a6070; font-size: 0.85rem; }
.auth-footer a { color: #4ec8d8; text-decoration: none; }
.auth-footer a:hover { text-decoration: underline; }

/* Spinner */
.spinner-sm {
    width: 14px; height: 14px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
    display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ═══════════════════════════════════════════════════════════
   NAV — Sección usuario autenticado
   ═══════════════════════════════════════════════════════════ */
.nav-divider { border: none; border-top: 1px solid rgba(78,200,216,0.15); margin: 0.5rem; }
.nav-link-admin { color: #f59e0b !important; }
.nav-link-admin:hover { background: rgba(245,158,11,0.1) !important; }

.nav-user-section { margin-top: auto; padding: 0.75rem; border-top: 1px solid rgba(78,200,216,0.12); }
.nav-user-info { display: flex; align-items: center; gap: 0.6rem; margin-bottom: 0.5rem; }
.nav-user-avatar {
    width: 32px; height: 32px;
    background: linear-gradient(135deg, #0077a8, #00b4d8);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 0.85rem; color: #fff;
    flex-shrink: 0; text-transform: uppercase;
}
.nav-user-details { display: flex; flex-direction: column; overflow: hidden; }
.nav-user-name { color: #e8f4f6; font-size: 0.8rem; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.nav-user-role { color: #4ec8d8; font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.5px; }
.nav-logout {
    display: block; color: #f87171; font-size: 0.8rem; text-decoration: none;
    padding: 0.3rem 0.5rem; border-radius: 6px; transition: background 0.2s; text-align: center;
}
.nav-logout:hover { background: rgba(239,68,68,0.15); }

/* ═══════════════════════════════════════════════════════════
   ADMIN USERS PANEL
   ═══════════════════════════════════════════════════════════ */
.admin-users-page { padding: 1.5rem; max-width: 1100px; margin: 0 auto; }
.admin-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1.5rem; flex-wrap: wrap; gap: 1rem; }
.admin-header h2 { color: #e8f4f6; margin: 0; }
.admin-stats { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.stat-badge { padding: 0.3rem 0.7rem; border-radius: 20px; font-size: 0.8rem; font-weight: 600; }
.stat-pending  { background: rgba(245,158,11,0.15); color: #f59e0b; border: 1px solid rgba(245,158,11,0.3); }
.stat-approved { background: rgba(72,213,151,0.15); color: #48d597; border: 1px solid rgba(72,213,151,0.3); }
.stat-rejected { background: rgba(239,68,68,0.15);  color: #f87171; border: 1px solid rgba(239,68,68,0.3); }

.admin-filters { display: flex; gap: 0.5rem; margin-bottom: 1rem; flex-wrap: wrap; }
.filter-btn {
    padding: 0.4rem 1rem;
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(78,200,216,0.2);
    border-radius: 20px;
    color: #93a9af;
    cursor: pointer;
    font-size: 0.85rem;
    transition: all 0.2s;
}
.filter-btn.active, .filter-btn:hover { background: rgba(78,200,216,0.15); border-color: rgba(78,200,216,0.5); color: #4ec8d8; }

.users-table-wrapper { overflow-x: auto; border-radius: 12px; border: 1px solid rgba(78,200,216,0.15); }
.users-table { width: 100%; border-collapse: collapse; background: #0f1e2a; }
.users-table th { background: #0a1520; color: #4a6070; font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.5px; padding: 0.75rem 1rem; text-align: left; border-bottom: 1px solid rgba(78,200,216,0.1); }
.users-table td { padding: 0.75rem 1rem; color: #e8f4f6; font-size: 0.88rem; border-bottom: 1px solid rgba(78,200,216,0.06); vertical-align: middle; }
.user-row:hover td { background: rgba(78,200,216,0.03); }
.row-pending  td { border-left: 3px solid #f59e0b; }
.row-approved td { border-left: 3px solid #48d597; }
.row-rejected td { border-left: 3px solid #f87171; }

.user-info { display: flex; align-items: center; gap: 0.6rem; }
.user-avatar {
    width: 34px; height: 34px;
    background: linear-gradient(135deg, #0077a8, #00b4d8);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 0.85rem; color: #fff;
    text-transform: uppercase; flex-shrink: 0;
}
.user-info strong { display: block; font-size: 0.88rem; }
.user-info small  { display: block; color: #4a6070; font-size: 0.78rem; }

.role-select { background: #0a1520; border: 1px solid rgba(78,200,216,0.2); border-radius: 6px; color: #e8f4f6; padding: 0.3rem 0.5rem; font-size: 0.82rem; cursor: pointer; }

.status-badge { padding: 0.25rem 0.6rem; border-radius: 12px; font-size: 0.78rem; font-weight: 600; }
.badge-pending  { background: rgba(245,158,11,0.15); color: #f59e0b; }
.badge-approved { background: rgba(72,213,151,0.15); color: #48d597; }
.badge-rejected { background: rgba(239,68,68,0.15);  color: #f87171; }

.action-btns { display: flex; gap: 0.3rem; }
.btn-action { width: 32px; height: 32px; border: none; border-radius: 6px; cursor: pointer; font-size: 1rem; display: flex; align-items: center; justify-content: center; transition: background 0.2s; background: transparent; }
.btn-approve:hover { background: rgba(72,213,151,0.2); }
.btn-reject:hover  { background: rgba(239,68,68,0.2); }
.btn-delete:hover  { background: rgba(239,68,68,0.2); }
.empty-row { text-align: center; color: #4a6070; padding: 2rem !important; }

/* ─── Password con ojito ──────────────────────────────────── */
.password-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}
.password-wrapper input {
    padding-right: 2.8rem !important;
    width: 100%;
}
.btn-eye {
    position: absolute;
    right: 0.6rem;
    background: none;
    border: none;
    cursor: pointer;
    color: #4a6070;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.3rem;
    border-radius: 4px;
    transition: color 0.2s;
    line-height: 0;
}
.btn-eye:hover { color: #4ec8d8; }
.btn-eye svg {
    width: 18px;
    height: 18px;
    stroke: currentColor;
}

/* ─── Logo icono H ───────────────────────────────────────── */
.auth-logo-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, #0077a8 0%, #00b4d8 100%);
    border-radius: 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    font-weight: 900;
    color: #fff;
    margin: 0 auto 0.75rem;
    box-shadow: 0 4px 20px rgba(0, 180, 216, 0.3);
    letter-spacing: -1px;
}