/*
 * BioEnigmaScope
 * Single application stylesheet.
 *
 * Structure
 *  1. Theme tokens
 *  2. Base / typography
 *  3. Layout primitives
 *  4. Containers
 *  5. Controls
 *  6. Capture controls
 *  7. Navigation
 *  8. Status / feedback
 *  9. Page-specific exceptions
 * 10. Responsive / accessibility
 */

/* ==========================================================
   1. Theme tokens
   ========================================================== */

:root {
    color-scheme: light dark;

    --bes-page-bg: #f4f5f6;
    --bes-surface-bg: #ffffff;
    --bes-surface-muted: #f7f7f8;
    --bes-text: #202124;
    --bes-text-secondary: #5f6368;
    --bes-border: #d7d9dc;
    --bes-border-strong: #8a8d91;
    --bes-control-bg: #ffffff;
    --bes-control-text: #202124;
    --bes-link: #55207b;
    --bes-focus: #2357a5;
    --bes-hover-bg: #eceef0;
    --bes-shadow: 0 .35rem 1rem rgba(0, 0, 0, .16);

    --bes-success-bg: #e7f6ea;
    --bes-success-text: #173b20;
    --bes-success-border: #78ad83;
    --bes-error-bg: #fde8ec;
    --bes-error-text: #651b24;
    --bes-error-border: #8f2835;
    --bes-warning-bg: #fff4d6;
    --bes-warning-text: #513b00;
    --bes-warning-border: #b58a16;
    --bes-info-bg: #e8f1fb;
    --bes-info-text: #173b5c;
    --bes-info-border: #7396ba;

    --bes-radius: .75rem;
    --bes-control-radius: .65rem;
    --bes-control-height: 2.75rem;

    --bes-space-1: .25rem;
    --bes-space-2: .5rem;
    --bes-space-3: .75rem;
    --bes-space-4: 1rem;
    --bes-space-5: 1.5rem;
}

html[data-bes-theme="light"] {
    color-scheme: light;
}

@media (prefers-color-scheme: dark) {
    :root:not([data-bes-theme="light"]) {
        --bes-page-bg: #171819;
        --bes-surface-bg: #242628;
        --bes-surface-muted: #1d1f20;
        --bes-text: #f1f3f4;
        --bes-text-secondary: #bdc1c6;
        --bes-border: #4b4e51;
        --bes-border-strong: #85898d;
        --bes-control-bg: #2b2d2f;
        --bes-control-text: #f1f3f4;
        --bes-link: #d5a7f2;
        --bes-focus: #9ec5ff;
        --bes-hover-bg: #34373a;
        --bes-shadow: 0 .35rem 1rem rgba(0, 0, 0, .5);

        --bes-success-bg: #17351f;
        --bes-success-text: #c9f1d2;
        --bes-success-border: #69a978;
        --bes-error-bg: #431c22;
        --bes-error-text: #ffd6db;
        --bes-error-border: #c96b77;
        --bes-warning-bg: #40330f;
        --bes-warning-text: #ffe8a3;
        --bes-warning-border: #bb9430;
        --bes-info-bg: #173149;
        --bes-info-text: #d6eaff;
        --bes-info-border: #6c9ac4;
    }
}

html[data-bes-theme="dark"] {
    color-scheme: dark;

    --bes-page-bg: #171819;
    --bes-surface-bg: #242628;
    --bes-surface-muted: #1d1f20;
    --bes-text: #f1f3f4;
    --bes-text-secondary: #bdc1c6;
    --bes-border: #4b4e51;
    --bes-border-strong: #85898d;
    --bes-control-bg: #2b2d2f;
    --bes-control-text: #f1f3f4;
    --bes-link: #d5a7f2;
    --bes-focus: #9ec5ff;
    --bes-hover-bg: #34373a;
    --bes-shadow: 0 .35rem 1rem rgba(0, 0, 0, .5);

    --bes-success-bg: #17351f;
    --bes-success-text: #c9f1d2;
    --bes-success-border: #69a978;
    --bes-error-bg: #431c22;
    --bes-error-text: #ffd6db;
    --bes-error-border: #c96b77;
    --bes-warning-bg: #40330f;
    --bes-warning-text: #ffe8a3;
    --bes-warning-border: #bb9430;
    --bes-info-bg: #173149;
    --bes-info-text: #d6eaff;
    --bes-info-border: #6c9ac4;
}

/* ==========================================================
   2. Base / typography
   ========================================================== */

* {
    box-sizing: border-box;
}

html {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    line-height: 1.5;
    background: var(--bes-page-bg);
    color: var(--bes-text);
}

body {
    margin: 0;
    background: var(--bes-page-bg);
    color: var(--bes-text);
}

h1 {
    margin: 0;
    font-size: clamp(2rem, 7vw, 4rem);
    line-height: 1;
}

a,
.brand {
    color: var(--bes-link);
}

.brand {
    font-weight: 750;
    text-decoration: none;
}

.eyebrow {
    margin: 0 0 .4rem;
    font-size: .8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .08em;
}

.lede {
    font-size: 1.1rem;
}

.bes-secondary,
.bes-entry-hint {
    color: var(--bes-text-secondary);
}

.bes-help,
.bes-strength {
    margin: .4rem 0 0;
}

.bes-help {
    font-size: .95em;
}

hr {
    border-color: var(--bes-border);
}

::placeholder {
    color: var(--bes-text-secondary);
    opacity: 1;
}

/* ==========================================================
   3. Layout primitives
   ========================================================== */

.shell {
    width: min(100% - 2rem, 72rem);
    margin-inline: auto;
}

.hero {
    padding: 1rem 0 1.5rem;
}

.bes-nav,
.bes-actions {
    display: flex;
    flex-wrap: wrap;
    gap: .7rem;
    margin: 1rem 0;
}

.bes-head {
    display: flex;
    align-items: center;
    gap: .5rem;
}

.bes-head h2 {
    margin-right: auto;
}

.bes-meta {
    display: grid;
    grid-template-columns: minmax(7rem, 1fr) minmax(0, 2fr);
    gap: .35rem .8rem;
}

.bes-meta dt {
    font-weight: 700;
}

.bes-meta dd {
    margin: 0;
    overflow-wrap: anywhere;
}

.bes-inline-form {
    display: inline;
    margin: 0;
}

.bes-max-30 {
    max-width: 30rem;
}

.bes-max-36 {
    max-width: 36rem;
}

.bes-max-42 {
    max-width: 42rem;
}

.bes-mt-tight {
    margin-top: .1rem;
}

.bes-mt-075 {
    margin-top: .75rem;
}

.bes-mt-1 {
    margin-top: 1rem;
}

.bes-break-anywhere {
    overflow-wrap: anywhere;
}

.bes-overflow-auto {
    overflow: auto;
}

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

/* ==========================================================
   4. Containers
   ========================================================== */

.site-header {
    background: var(--bes-surface-bg);
    border-bottom: 1px solid var(--bes-border);
}

.site-header .shell {
    min-height: 4rem;
    display: flex;
    align-items: center;
}

.site-footer {
    border-top: 1px solid var(--bes-border);
    padding: 1.5rem 0;
    font-size: .85rem;
}

.bes-card,
.status-card,
.diag-card {
    background: var(--bes-surface-bg);
    border: 1px solid var(--bes-border);
    border-radius: var(--bes-radius);
}

.bes-card {
    padding: .75rem;
    margin: .3rem 0;
}

.status-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: .8rem;
}

.status-card {
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    gap: 1rem;
}

.status-card strong {
    text-align: right;
    overflow-wrap: anywhere;
}

.temporary-note {
    margin: 1.5rem 0 3rem;
    font-size: .9rem;
}

/* ==========================================================
   5. Controls
   ========================================================== */

input,
select,
textarea,
button {
    background: var(--bes-control-bg);
    color: var(--bes-control-text);
    border-color: var(--bes-border-strong);
    font: inherit;
}

input:focus-visible,
select:focus-visible,
textarea:focus-visible,
button:focus-visible,
a:focus-visible {
    outline: 3px solid var(--bes-focus);
    outline-offset: 2px;
}

.bes-nav a,
.bes-button,
.bes-up,
.bes-password-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    min-width: 44px;
    padding: .6rem .85rem;
    border: 1px solid var(--bes-border-strong);
    border-radius: var(--bes-control-radius);
    background: var(--bes-control-bg);
    color: inherit;
    text-decoration: none;
    font: inherit;
}

.bes-field {
    margin-bottom: 1rem;
}

.bes-field label {
    font-weight: 700;
}

.bes-field input,
.bes-field select,
.bes-field textarea {
    display: block;
    width: 100%;
    box-sizing: border-box;
    padding: .75rem;
    margin-top: .3rem;
    font: inherit;
}

.bes-password-control,
.bes-password-row {
    display: flex;
    align-items: stretch;
    gap: .5rem;
}

.bes-password-control input,
.bes-password-row input {
    min-width: 0;
    flex: 1;
}

.bes-password-toggle {
    align-self: flex-end;
    white-space: nowrap;
}

.bes-list-controls {
    display: flex;
    justify-content: flex-end;
    margin: .5rem 0 1rem;
}

.bes-switch {
    display: inline-flex;
    align-items: center;
    gap: .55rem;
    cursor: pointer;
}

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

.bes-switch-track {
    width: 2.8rem;
    height: 1.5rem;
    border: 1px solid currentColor;
    border-radius: 999px;
    padding: .15rem;
    display: inline-flex;
    align-items: center;
}

.bes-switch-thumb {
    width: 1.05rem;
    height: 1.05rem;
    border-radius: 50%;
    background: currentColor;
    transition: transform .15s ease;
}

.bes-switch input:checked + .bes-switch-track .bes-switch-thumb {
    transform: translateX(1.25rem);
}

.bes-switch input:focus-visible + .bes-switch-track {
    outline: 3px solid var(--bes-focus);
    outline-offset: 2px;
}

/* ==========================================================
   6. Capture controls
   ========================================================== */

.bes-measure {
    border: 0;
    padding: 0;
    margin: .45rem 0;
    min-inline-size: 0;
}

.bes-measure legend {
    font-weight: 700;
    margin: 0 0 .12rem;
}

.bes-measure-row {
    display: flex;
    align-items: center;
    gap: .65rem;
    min-width: 0;
}

.bes-score-control {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto auto;
    align-items: start;
    gap: .55rem;
    width: 100%;
}

.bes-score-slider-wrap {
    min-width: 0;
    padding-top: .15rem;
}

.bes-score-range {
    display: block;
    width: 100%;
    min-width: 0;
    margin: 0;
}

.bes-score-bounds {
    display: flex;
    justify-content: space-between;
    margin-top: .02rem;
    padding: 0 .08rem;
    font-size: .9rem;
    line-height: 1.1;
    color: var(--bes-text-secondary);
}

.bes-score-number {
    width: 4.25rem !important;
    min-width: 4.25rem;
    height: 2.5rem;
    box-sizing: border-box;
    text-align: center;
    padding: .35rem .45rem !important;
    font-size: 1rem;
    font-weight: 700;
}

.bes-na-check {
    position: absolute;
    inline-size: 1px;
    block-size: 1px;
    opacity: 0;
    pointer-events: none;
}

.bes-na-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 3.2rem;
    height: 2.5rem;
    box-sizing: border-box;
    padding: .35rem .7rem;
    border: 1px solid var(--bes-border-strong);
    border-radius: .7rem;
    background: var(--bes-control-bg);
    color: var(--bes-control-text);
    font-weight: 700;
    cursor: pointer;
    user-select: none;
}

.bes-na-check:focus-visible + .bes-na-button {
    outline: 3px solid var(--bes-focus);
    outline-offset: 2px;
}

.bes-na-check:checked + .bes-na-button {
    border: 3px solid currentColor;
    padding: calc(.35rem - 2px) calc(.7rem - 2px);
    background: rgba(127, 127, 127, .13);
}

.bes-measure.is-na .bes-score-range {
    opacity: .28;
}

.bes-measure.is-na .bes-score-number,
.bes-measure.is-na .bes-value-control {
    opacity: .45;
    background: rgba(127, 127, 127, .14);
}

.bes-measure.is-na .bes-score-range::-webkit-slider-thumb,
.bes-measure.is-na .bes-score-range::-moz-range-thumb {
    opacity: 0;
}

.bes-entry-hint {
    display: block;
    margin-top: .3rem;
    font-size: .84rem;
}

/* ==========================================================
   7. Navigation
   ========================================================== */

.bes-site-header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.bes-user-menu {
    position: relative;
    margin-left: auto;
    color: var(--bes-text);
}

.bes-user-menu summary {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    min-height: 44px;
    padding: .25rem;
    cursor: pointer;
    list-style: none;
    border-radius: .55rem;
    color: var(--bes-text);
}

.bes-user-menu summary::-webkit-details-marker {
    display: none;
}

.bes-menu-icon {
    display: grid;
    gap: 5px;
    width: 28px;
}

.bes-menu-icon span {
    display: block;
    height: 3px;
    border-radius: 2px;
    background: currentColor;
}

.bes-user-menu-panel {
    position: absolute;
    right: 0;
    top: calc(100% + .4rem);
    z-index: 1000;
    min-width: 14rem;
    padding: .4rem;
    background: var(--bes-surface-bg);
    color: var(--bes-text);
    border: 1px solid var(--bes-border-strong);
    border-radius: var(--bes-control-radius);
    box-shadow: var(--bes-shadow);
}

.bes-user-menu-panel a {
    display: block;
    padding: .7rem .8rem;
    border-radius: .4rem;
    color: var(--bes-text);
    text-decoration: none;
    white-space: nowrap;
}

.bes-user-menu-panel a:hover {
    background: var(--bes-hover-bg);
}

.bes-user-menu-panel a:focus-visible {
    outline-offset: -1px;
}

.bes-menu-appearance {
    border-top: 1px solid var(--bes-border);
    margin-top: .35rem;
    padding: .7rem .8rem .45rem;
}

.bes-menu-appearance label {
    display: block;
    font-weight: 700;
    margin-bottom: .35rem;
}

.bes-menu-appearance select {
    width: 100%;
    min-height: 44px;
    padding: .45rem .55rem;
    border: 1px solid var(--bes-border-strong);
    border-radius: .45rem;
    background: var(--bes-control-bg);
    color: var(--bes-control-text);
    font: inherit;
}

/* ==========================================================
   8. Status / feedback
   ========================================================== */

.bes-status {
    border: 1px solid var(--bes-border-strong);
    border-radius: var(--bes-control-radius);
    padding: .8rem 1rem;
    margin: 1rem 0;
    background: var(--bes-surface-bg);
}

.bes-status[role="alert"] {
    border-width: 2px;
}

.bes-status--success {
    background: var(--bes-success-bg);
    color: var(--bes-success-text);
    border-color: var(--bes-success-border);
}

.bes-status--error {
    background: var(--bes-error-bg);
    color: var(--bes-error-text);
    border-color: var(--bes-error-border);
}

.bes-status--warning {
    background: var(--bes-warning-bg);
    color: var(--bes-warning-text);
    border-color: var(--bes-warning-border);
}

.bes-status--info {
    background: var(--bes-info-bg);
    color: var(--bes-info-text);
    border-color: var(--bes-info-border);
}

.bes-toast {
    transition: opacity .25s ease;
}

.bes-toast.bes-toast-hide {
    opacity: 0;
}

.ok {
    color: #166534;
}

.bad {
    color: #991b1b;
}

.error-box {
    margin-top: 1rem;
    padding: 1rem;
    border: 1px solid var(--bes-error-border);
    border-radius: var(--bes-radius);
    background: var(--bes-error-bg);
    color: var(--bes-error-text);
}

/* ==========================================================
   9. Page-specific exceptions
   Keep this small. Promote repeated patterns above.
   ========================================================== */

/* Current state */
.bes-state-sheet {
    padding-top: .25rem;
}

.bes-state-item {
    padding: .65rem 0;
    border-bottom: 1px solid var(--bes-border);
}

.bes-state-item:last-child {
    border-bottom: 0;
}

.bes-state-item h2 {
    font-size: 1.05rem;
    margin: .15rem 0;
}

.bes-state-item .bes-measure {
    margin: .15rem 0 .45rem;
}

/* Item pages */
.bes-item-title-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.bes-item-title-row h1 {
    margin: 0;
}

.bes-default-form {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--bes-border);
}

/* Interval */
.bes-interval-list {
    display: grid;
    gap: .75rem;
    margin: 1rem 0 1.5rem;
}

.bes-interval-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1rem;
}

.bes-interval-item h2 {
    font-size: 1.05rem;
    margin: 0;
}

.bes-interval-item p {
    margin: .25rem 0 0;
}

.bes-interval-action {
    margin: 0;
    flex: 0 0 auto;
}

.bes-interval-action .bes-button {
    min-width: 5.5rem;
}

/* Diagnostics */
.diag-skip {
    position: absolute;
    left: -9999px;
}

.diag-skip:focus {
    left: 1rem;
    top: 1rem;
    z-index: 1000;
    background: var(--bes-surface-bg);
    color: var(--bes-text);
    padding: .75rem 1rem;
    border: 2px solid var(--bes-focus);
}

.diag-nav {
    display: flex;
    flex-wrap: wrap;
    gap: .75rem;
    margin: 1rem 0 2rem;
}

.diag-nav a {
    display: inline-block;
    padding: .7rem .9rem;
    border: 1px solid var(--bes-border-strong);
    border-radius: .6rem;
    background: var(--bes-control-bg);
    color: var(--bes-control-text);
    text-decoration: none;
}

.diag-nav a:hover {
    background: var(--bes-hover-bg);
}

.diag-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: .8rem;
    margin: 1rem 0 2rem;
}

.diag-card {
    color: var(--bes-text);
    padding: 1rem;
}

.diag-card dl {
    margin: 0;
    display: grid;
    grid-template-columns: minmax(8rem, 1fr) minmax(0, 2fr);
    gap: .45rem .8rem;
}

.diag-card dt {
    font-weight: 700;
}

.diag-card dd {
    margin: 0;
    overflow-wrap: anywhere;
}

.diag-list {
    display: grid;
    gap: .9rem;
    margin: 1rem 0 2rem;
}

.diag-code {
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    overflow-wrap: anywhere;
}

.diag-null {
    font-style: italic;
    color: var(--bes-text-secondary);
}

/* Public landing page */
.bes-landing {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    text-align: center;
}

.bes-landing-banner {
    width: 100%;
    max-width: 1200px;
    height: auto;
    margin-bottom: 1.25rem;
}

.bes-landing footer {
    margin-top: 2.5rem;
    font-size: .9em;
    color: var(--bes-text-secondary);
}

/* ==========================================================
   10. Responsive / accessibility
   ========================================================== */

@media (max-width: 430px) {
    .bes-score-control {
        grid-template-columns: minmax(0, 1fr) 3.7rem auto;
        gap: .4rem;
    }

    .bes-na-button {
        min-width: 3rem;
    }
}

@media (max-width: 480px) {
    .bes-interval-item {
        align-items: flex-start;
    }
}

@media (min-width: 42rem) {
    .status-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (min-width: 44rem) {
    .diag-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (min-width: 68rem) {
    .status-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (min-width: 70rem) {
    .diag-grid {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }
}

@media (prefers-reduced-motion: reduce) {
    * {
        scroll-behavior: auto !important;
    }

    .bes-toast,
    .bes-switch-thumb {
        transition: none;
    }
}