/* AC Edunity — Configuración premium */
#settings {
    --settings-accent: #7c68ee;
    --settings-accent-2: #49ccf9;
    --settings-surface: rgba(20, 27, 54, .78);
    --settings-surface-soft: rgba(30, 39, 73, .58);
    --settings-border: rgba(139, 151, 206, .24);
    --settings-text: #f2f4ff;
    --settings-muted: #aeb7d2;
}

#settings .settings-page-header {
    margin-bottom: 30px;
}

#settings .settings-page-eyebrow {
    display: inline-flex;
    margin-bottom: 8px;
    color: #8ecbff;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: .16em;
    text-transform: uppercase;
}

#settings .settings-layout {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
    width: 100%;
    max-width: 1280px;
}

#settings .settings-card {
    position: relative;
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: 18px;
    min-width: 0;
    padding: 24px;
    border: 1px solid var(--settings-border);
    border-radius: 22px;
    color: var(--settings-text);
    background:
        linear-gradient(145deg, rgba(255,255,255,.035), transparent 44%),
        var(--settings-surface);
    box-shadow: 0 18px 42px rgba(3, 7, 24, .22), inset 0 1px 0 rgba(255,255,255,.035);
    backdrop-filter: blur(18px) saturate(118%);
    -webkit-backdrop-filter: blur(18px) saturate(118%);
    transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease;
}

#settings .settings-card:hover {
    transform: translateY(-3px);
    border-color: rgba(114, 137, 239, .45);
    box-shadow: 0 24px 52px rgba(3, 7, 24, .3), 0 0 30px rgba(91, 80, 212, .08);
}

#settings .settings-card--wide {
    grid-column: 1 / -1;
}

#settings .settings-card-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    border: 1px solid rgba(125, 113, 238, .34);
    border-radius: 16px;
    color: #a99aff;
    background: linear-gradient(145deg, rgba(93, 71, 219, .22), rgba(73, 204, 249, .08));
    flex-shrink: 0;
}

#settings .settings-card-icon svg {
    width: 25px;
    height: 25px;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
}

#settings .settings-card-copy {
    min-width: 0;
}

#settings .settings-kicker {
    display: block;
    margin-bottom: 5px;
    color: #8f9bbc;
    font-size: 11px;
    font-weight: 800;
    letter-spacing: .12em;
    text-transform: uppercase;
}

#settings .settings-card h2 {
    margin: 0 0 7px;
    color: var(--settings-text);
    font-size: 18px;
    line-height: 1.25;
}

#settings .settings-card p {
    margin: 0;
    color: var(--settings-muted);
    font-size: 14px;
    line-height: 1.55;
}

#settings .settings-switch {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    cursor: pointer;
    user-select: none;
}

#settings .settings-switch input {
    position: absolute;
    width: 1px;
    height: 1px;
    opacity: 0;
}

#settings .settings-switch-track {
    position: relative;
    width: 50px;
    height: 28px;
    border: 1px solid rgba(137, 149, 190, .4);
    border-radius: 999px;
    background: rgba(7, 13, 34, .72);
    transition: border-color .2s ease, background .2s ease, box-shadow .2s ease;
}

#settings .settings-switch-thumb {
    position: absolute;
    top: 4px;
    left: 4px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #aeb6cd;
    transition: transform .22s ease, background .22s ease;
}

#settings .settings-switch input:checked + .settings-switch-track {
    border-color: rgba(116, 139, 255, .72);
    background: linear-gradient(110deg, #3a7eff, #7b4ee8);
    box-shadow: 0 0 18px rgba(83, 91, 231, .22);
}

#settings .settings-switch input:checked + .settings-switch-track .settings-switch-thumb {
    transform: translateX(22px);
    background: #fff;
}

#settings .settings-switch input:focus-visible + .settings-switch-track,
#settings button:focus-visible,
#settings select:focus-visible,
#settings .settings-options-panel input:focus-visible {
    outline: 3px solid rgba(73, 204, 249, .45);
    outline-offset: 3px;
}

#settings .settings-switch-label {
    color: #8f99b6;
    font-size: 10px;
    letter-spacing: .08em;
}

#settings .settings-panel-button {
    min-height: 42px;
    padding: 0 17px;
    border: 1px solid rgba(103, 132, 238, .42);
    border-radius: 12px;
    color: #e8ebff;
    background: linear-gradient(120deg, rgba(66, 98, 209, .42), rgba(110, 70, 204, .34));
    font-weight: 750;
    cursor: pointer;
}

#settings .settings-options-panel,
#settings .settings-about-panel {
    grid-column: 1 / -1;
    margin-top: 4px;
    padding: 18px;
    border: 1px solid rgba(132, 145, 198, .2);
    border-radius: 16px;
    background: rgba(7, 13, 32, .42);
}

#settings .settings-options-panel[hidden],
#settings .settings-about-panel[hidden] {
    display: none;
}

#settings .settings-options-panel {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 11px;
}

#settings .settings-options-panel label {
    display: flex;
    align-items: center;
    gap: 9px;
    min-width: 0;
    padding: 11px 12px;
    border-radius: 12px;
    color: #dfe4f5;
    background: rgba(255,255,255,.035);
    cursor: pointer;
}

#settings .settings-options-panel input {
    width: 17px;
    height: 17px;
    accent-color: #7766ef;
}

#settings .settings-about-panel {
    display: grid;
    grid-template-columns: auto minmax(160px, .55fr) minmax(240px, 1.45fr);
    align-items: center;
    gap: 18px;
}

#settings .settings-about-panel img {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    object-fit: contain;
}

#settings .settings-about-panel > div {
    display: grid;
    gap: 3px;
}

#settings .settings-about-panel strong {
    font-size: 18px;
}

#settings .settings-about-panel span,
#settings .settings-about-panel a {
    color: #aab4d0;
    font-size: 13px;
}

#settings .settings-about-panel a {
    color: #64b7ff;
}

#settings .settings-about-panel ul {
    grid-column: 2 / -1;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 0;
    padding: 0;
    list-style: none;
}

#settings .settings-about-panel li {
    padding: 6px 10px;
    border: 1px solid rgba(124, 104, 238, .25);
    border-radius: 999px;
    color: #cbd2e7;
    background: rgba(124, 104, 238, .09);
    font-size: 12px;
}

body.light-theme #settings {
    --settings-surface: rgba(250, 250, 250, .92);
    --settings-surface-soft: rgba(247, 248, 250, .94);
    --settings-border: rgba(154, 164, 184, .38);
    --settings-text: #1f2937;
    --settings-muted: #5b6575;
}

body.light-theme #settings .settings-card {
    box-shadow: 0 16px 36px rgba(60, 72, 96, .1), inset 0 1px 0 rgba(255,255,255,.7);
}

body.light-theme #settings .settings-kicker,
body.light-theme #settings .settings-switch-label {
    color: #667085;
}

body.light-theme #settings .settings-switch-track {
    background: #dfe4ec;
}

body.light-theme #settings .settings-panel-button {
    color: #344054;
    background: linear-gradient(120deg, rgba(89, 124, 230, .13), rgba(127, 86, 214, .12));
}

body.light-theme #settings .settings-options-panel,
body.light-theme #settings .settings-about-panel {
    background: rgba(238, 241, 245, .86);
}

body.light-theme #settings .settings-options-panel label {
    color: #344054;
    background: rgba(255,255,255,.55);
}

body.light-theme #settings .settings-about-panel span {
    color: #596579;
}

@media (max-width: 980px) {
    #settings .settings-layout {
        grid-template-columns: 1fr;
    }

    #settings .settings-card--wide {
        grid-column: auto;
    }

    #settings .settings-options-panel {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 640px) {
    #settings .settings-page-header {
        margin-bottom: 22px;
    }

    #settings .settings-layout {
        gap: 16px;
    }

    #settings .settings-card {
        grid-template-columns: auto minmax(0, 1fr);
        gap: 14px;
        padding: 19px;
        border-radius: 18px;
    }

    #settings .settings-card-icon {
        width: 44px;
        height: 44px;
        border-radius: 14px;
    }

    #settings .settings-switch,
    #settings .settings-panel-button {
        grid-column: 2;
        justify-self: start;
    }

    #settings .settings-options-panel,
    #settings .settings-about-panel {
        grid-column: 1 / -1;
    }

    #settings .settings-options-panel {
        grid-template-columns: 1fr;
    }

    #settings .settings-about-panel {
        grid-template-columns: auto minmax(0, 1fr);
    }

    #settings .settings-about-panel p,
    #settings .settings-about-panel ul {
        grid-column: 1 / -1;
    }

    #settings .settings-about-panel ul {
        justify-content: flex-start;
    }
}


/* Controles funcionales de Configuración */
[hidden] {
    display: none !important;
}

.settings-switch input:focus-visible + .settings-switch-track,
.settings-panel-button:focus-visible,
.settings-modal button:focus-visible,
.tutor-auto-suggestions button:focus-visible {
    outline: 3px solid rgba(94, 171, 255, .55);
    outline-offset: 3px;
}

.settings-modal {
    position: fixed;
    inset: 0;
    z-index: 9998;
    display: grid;
    place-items: center;
    padding: 24px;
}

.settings-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(5, 8, 24, .72);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.settings-modal-card {
    position: relative;
    z-index: 1;
    width: min(720px, 100%);
    max-height: min(760px, calc(100vh - 48px));
    overflow: auto;
    padding: 28px;
    border: 1px solid rgba(138, 151, 199, .34);
    border-radius: 24px;
    color: #eef2ff;
    background: linear-gradient(145deg, rgba(26, 31, 61, .98), rgba(15, 19, 43, .98));
    box-shadow: 0 28px 80px rgba(0, 0, 0, .46);
}

.settings-modal-header,
.settings-modal-actions {
    display: flex;
    align-items: center;
    gap: 14px;
}

.settings-modal-header {
    justify-content: space-between;
    margin-bottom: 12px;
}

.settings-modal-header h2 {
    margin: 4px 0 0;
}

.settings-modal-card > p {
    margin: 0 0 22px;
    color: #aeb7d2;
    line-height: 1.6;
}

.settings-modal-close {
    width: 42px;
    height: 42px;
    border: 1px solid rgba(151, 164, 207, .28);
    border-radius: 13px;
    color: #e9edff;
    background: rgba(255, 255, 255, .06);
    font-size: 26px;
    cursor: pointer;
}

.settings-module-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.settings-module-grid label {
    display: flex;
    align-items: center;
    gap: 11px;
    min-width: 0;
    padding: 14px;
    border: 1px solid rgba(139, 151, 195, .24);
    border-radius: 14px;
    color: #e6eaff;
    background: rgba(255, 255, 255, .045);
    cursor: pointer;
}

.settings-module-grid input {
    width: 18px;
    height: 18px;
    accent-color: #7768ee;
}

.settings-modal-actions {
    display: grid;
    grid-template-columns: auto 1fr auto auto;
    margin-top: 24px;
}

.settings-reset-button {
    border: 0;
    padding: 8px 0;
    color: #9cb9ff;
    background: transparent;
    cursor: pointer;
}

.settings-about-content {
    display: flex;
    align-items: center;
    gap: 18px;
    margin: 22px 0;
}

.settings-about-content img {
    width: 72px;
    height: 72px;
    object-fit: cover;
    border-radius: 50%;
}

.settings-about-content div {
    display: grid;
    gap: 4px;
}

.settings-about-content strong {
    font-size: 1.25rem;
}

.settings-about-content span {
    color: #aeb7d2;
}

.settings-about-content a {
    color: #84b8ff;
}

.settings-tech-list {
    display: flex;
    flex-wrap: wrap;
    gap: 9px;
    margin: 18px 0 0;
    padding: 0;
    list-style: none;
}

.settings-tech-list li {
    padding: 7px 11px;
    border-radius: 999px;
    color: #cfd7ff;
    background: rgba(109, 95, 222, .16);
}

.settings-modal-open {
    overflow: hidden;
}

.tutor-auto-suggestions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 9px;
    padding: 12px 16px;
    border-bottom: 1px solid rgba(132, 145, 190, .18);
}

.tutor-auto-suggestions > span {
    color: var(--text-secondary, #aeb7d2);
    font-size: .82rem;
}

.tutor-auto-suggestions button {
    border: 1px solid rgba(117, 137, 220, .3);
    border-radius: 999px;
    padding: 8px 12px;
    color: var(--text-primary, #edf1ff);
    background: rgba(102, 87, 214, .11);
    cursor: pointer;
}

.tutor-auto-suggestions button:hover {
    background: rgba(102, 87, 214, .2);
}

html.reduce-app-motion *,
html.reduce-app-motion *::before,
html.reduce-app-motion *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
}

html.reduce-app-motion .app-boot-loader *,
html.reduce-app-motion .app-boot-loader *::before,
html.reduce-app-motion .app-boot-loader *::after,
html.reduce-app-motion .loading-spinner,
html.reduce-app-motion .loading-indicator {
    animation-duration: 1s !important;
    animation-iteration-count: infinite !important;
}

html.performance-mode .auth-star,
html.performance-mode .landing-particles,
html.performance-mode .particle,
html.performance-mode .animated-bg {
    display: none !important;
}

html.performance-mode .card,
html.performance-mode .stat-card,
html.performance-mode #settings .settings-card,
html.performance-mode .settings-modal-backdrop {
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    box-shadow: none !important;
}

html.performance-mode *:not(.app-boot-loader *):not(.loading-spinner):not(.loading-indicator) {
    transition-duration: .08s !important;
}

body.light-theme .settings-modal-card {
    color: #1f2937;
    border-color: #d5dae2;
    background: #f7f8fa;
    box-shadow: 0 28px 70px rgba(49, 59, 82, .18);
}

body.light-theme .settings-modal-card > p,
body.light-theme .settings-about-content span {
    color: #5b6575;
}

body.light-theme .settings-modal-close {
    color: #344054;
    border-color: #d5dae2;
    background: #eef1f5;
}

body.light-theme .settings-module-grid label {
    color: #273449;
    border-color: #d5dae2;
    background: #f1f3f6;
}

body.light-theme .settings-tech-list li {
    color: #4b3fb2;
    background: #ebe8ff;
}

body.light-theme .tutor-auto-suggestions button {
    color: #334155;
    border-color: #cbd5e1;
    background: #eef1f5;
}

@media (prefers-reduced-motion: reduce) {
    *:not(.app-boot-loader *):not(.loading-spinner):not(.loading-indicator),
    *:not(.app-boot-loader *)::before,
    *:not(.app-boot-loader *)::after {
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
        scroll-behavior: auto !important;
    }
}

@media (max-width: 640px) {
    .settings-modal {
        padding: 12px;
    }

    .settings-modal-card {
        max-height: calc(100vh - 24px);
        padding: 20px;
        border-radius: 20px;
    }

    .settings-module-grid {
        grid-template-columns: 1fr;
    }

    .settings-modal-actions {
        grid-template-columns: 1fr 1fr;
    }

    .settings-modal-actions > span {
        display: none;
    }

    .settings-reset-button {
        grid-column: 1 / -1;
        text-align: left;
    }

    .tutor-auto-suggestions {
        align-items: stretch;
    }

    .tutor-auto-suggestions button {
        flex: 1 1 100%;
        text-align: left;
    }
}


#settings .settings-card-copy {
    align-self: center;
}

#settings .settings-disabled-note {
    max-height: 0;
    margin: 0;
    overflow: hidden;
    opacity: 0;
    color: #929db9;
    font-size: .78rem;
    line-height: 1.45;
    transform: translateY(-3px);
    transition: max-height .24s ease, margin-top .24s ease, opacity .2s ease, transform .24s ease;
}

#settings .settings-card[data-setting-state="disabled"] .settings-disabled-note {
    max-height: 96px;
    margin-top: 9px;
    opacity: 1;
    transform: translateY(0);
}

#settings .settings-card[data-setting-state="enabled"] .settings-switch-label {
    color: #78d4ff;
}

#settings .settings-card[data-setting-state="disabled"] .settings-switch-label {
    color: #9aa4bb;
}

#settings .settings-switch-label {
    min-width: 74px;
    text-align: center;
    letter-spacing: 0;
    text-transform: none;
}

body.light-theme #settings .settings-disabled-note {
    color: #6b7280;
}

body.light-theme #settings .settings-card[data-setting-state="enabled"] .settings-switch-label {
    color: #2563a8;
}

body.light-theme #settings .settings-card[data-setting-state="disabled"] .settings-switch-label {
    color: #667085;
}

@media (max-width: 640px) {
    #settings .settings-disabled-note {
        font-size: .76rem;
    }

    #settings .settings-card[data-setting-state="disabled"] .settings-disabled-note {
        max-height: 130px;
    }
}