/**
 * Verion System CSS — Bootstrap-class-compatible layout & components
 * Drop-in replacement for Bootstrap CSS (no JS). Consumes --cos-* design tokens.
 */
:root {
    --bs-gutter-x: var(--cos-space-4, 1rem);
    --bs-gutter-y: 0;
    --bs-body-font-family: var(--cos-type-body, var(--cos-font-body, system-ui, sans-serif));
    --bs-body-color: var(--cos-color-ink, var(--cos-ink, #111827));
    --bs-body-bg: var(--cos-color-surface, var(--cos-surface, #fff));
    --bs-primary: var(--cos-color-brand, var(--cos-jade, #0f766e));
    --bs-primary-rgb: 15, 118, 110;
    --bs-secondary: var(--cos-color-muted, var(--cos-muted, #6b7280));
    --bs-secondary-rgb: 107, 114, 128;
    --bs-success: var(--cos-status-success, #15803d);
    --bs-success-rgb: 21, 128, 61;
    --bs-danger: var(--cos-status-danger, #b91c1c);
    --bs-danger-rgb: 185, 28, 28;
    --bs-warning: var(--cos-status-warning, #b45309);
    --bs-warning-rgb: 180, 83, 9;
    --bs-info: var(--cos-status-info, #1d4ed8);
    --bs-info-rgb: 29, 78, 216;
    --bs-border-color: var(--cos-color-border, var(--cos-border, rgba(15, 118, 110, 0.14)));
    --bs-border-radius: var(--cos-radius-md, 0.75rem);
    --bs-border-radius-sm: var(--cos-radius-sm, 0.375rem);
    --bs-border-radius-lg: var(--cos-radius-lg, 1rem);
    --bs-border-radius-xl: var(--cos-radius-xl, 1.25rem);
    --bs-link-color: var(--cos-color-brand, var(--cos-jade, #0f766e));
    --bs-link-hover-color: var(--cos-color-ink, var(--cos-ink, #111827));
    --bs-focus-ring-color: color-mix(in srgb, var(--bs-primary) 28%, transparent);
    --cos-sp-0: 0;
    --cos-sp-1: var(--cos-space-1, 0.25rem);
    --cos-sp-2: var(--cos-space-2, 0.5rem);
    --cos-sp-3: var(--cos-space-4, 1rem);
    --cos-sp-4: var(--cos-space-5, 1.5rem);
    --cos-sp-5: var(--cos-space-8, 3rem);
    --cos-bp-sm: 576px;
    --cos-bp-md: 768px;
    --cos-bp-lg: 992px;
    --cos-bp-xl: 1200px;
    --cos-bp-xxl: 1400px;
}

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

html {
    font-size: 100%;
    -webkit-text-size-adjust: 100%;
    tab-size: 4;
}

body {
    margin: 0;
    font-family: var(--bs-body-font-family);
    font-size: var(--cos-type-md, 1rem);
    font-weight: var(--cos-type-weight-regular, 400);
    line-height: var(--cos-type-leading-normal, 1.5);
    color: var(--bs-body-color);
    background-color: var(--bs-body-bg);
    -webkit-font-smoothing: antialiased;
}

img, svg { vertical-align: middle; max-width: 100%; height: auto; }
button, input, select, textarea { font: inherit; color: inherit; }
a { color: var(--bs-link-color); text-decoration: none; }
a:hover { color: var(--bs-link-hover-color); text-decoration: underline; }

/* —— Containers —— */
.container,
.container-fluid {
    width: 100%;
    margin-inline: auto;
    padding-inline: calc(var(--bs-gutter-x) * 0.5);
}
.container { max-width: 1320px; }
@media (min-width: 576px) { .container { max-width: 540px; } }
@media (min-width: 768px) { .container { max-width: 720px; } }
@media (min-width: 992px) { .container { max-width: 960px; } }
@media (min-width: 1200px) { .container { max-width: 1140px; } }
@media (min-width: 1400px) { .container { max-width: 1320px; } }

/* —— Grid —— */
.row {
    --bs-gutter-x: var(--cos-space-4, 1rem);
    --bs-gutter-y: 0;
    display: flex;
    flex-wrap: wrap;
    margin-top: calc(-1 * var(--bs-gutter-y));
    margin-inline: calc(-0.5 * var(--bs-gutter-x));
}
.row > * {
    flex-shrink: 0;
    width: 100%;
    max-width: 100%;
    padding-inline: calc(var(--bs-gutter-x) * 0.5);
    margin-top: var(--bs-gutter-y);
}
.g-0 { --bs-gutter-x: 0; --bs-gutter-y: 0; }
.g-1 { --bs-gutter-x: var(--cos-sp-1); --bs-gutter-y: var(--cos-sp-1); }
.g-2 { --bs-gutter-x: var(--cos-sp-2); --bs-gutter-y: var(--cos-sp-2); }
.g-3 { --bs-gutter-x: var(--cos-sp-3); --bs-gutter-y: var(--cos-sp-3); }
.g-4 { --bs-gutter-x: var(--cos-sp-4); --bs-gutter-y: var(--cos-sp-4); }
.g-5 { --bs-gutter-x: var(--cos-sp-5); --bs-gutter-y: var(--cos-sp-5); }
.gx-0 { --bs-gutter-x: 0; } .gx-1 { --bs-gutter-x: var(--cos-sp-1); } .gx-2 { --bs-gutter-x: var(--cos-sp-2); }
.gx-3 { --bs-gutter-x: var(--cos-sp-3); } .gx-4 { --bs-gutter-x: var(--cos-sp-4); } .gx-5 { --bs-gutter-x: var(--cos-sp-5); }
.gy-0 { --bs-gutter-y: 0; } .gy-1 { --bs-gutter-y: var(--cos-sp-1); } .gy-2 { --bs-gutter-y: var(--cos-sp-2); }
.gy-3 { --bs-gutter-y: var(--cos-sp-3); } .gy-4 { --bs-gutter-y: var(--cos-sp-4); } .gy-5 { --bs-gutter-y: var(--cos-sp-5); }
.g-lg-4 { --bs-gutter-x: var(--cos-sp-4); --bs-gutter-y: var(--cos-sp-4); }

.col { flex: 1 0 0; }
.col-auto { flex: 0 0 auto; width: auto; }
.col-1 { flex: 0 0 auto; width: 8.333333%; } .col-2 { flex: 0 0 auto; width: 16.666667%; }
.col-3 { flex: 0 0 auto; width: 25%; } .col-4 { flex: 0 0 auto; width: 33.333333%; }
.col-5 { flex: 0 0 auto; width: 41.666667%; } .col-6 { flex: 0 0 auto; width: 50%; }
.col-7 { flex: 0 0 auto; width: 58.333333%; } .col-8 { flex: 0 0 auto; width: 66.666667%; }
.col-9 { flex: 0 0 auto; width: 75%; } .col-10 { flex: 0 0 auto; width: 83.333333%; }
.col-11 { flex: 0 0 auto; width: 91.666667%; } .col-12 { flex: 0 0 auto; width: 100%; }

@media (min-width: 576px) {
    .col-sm { flex: 1 0 0; } .col-sm-auto { flex: 0 0 auto; width: auto; }
    .col-sm-1 { flex: 0 0 auto; width: 8.333333%; } .col-sm-2 { flex: 0 0 auto; width: 16.666667%; }
    .col-sm-3 { flex: 0 0 auto; width: 25%; } .col-sm-4 { flex: 0 0 auto; width: 33.333333%; }
    .col-sm-5 { flex: 0 0 auto; width: 41.666667%; } .col-sm-6 { flex: 0 0 auto; width: 50%; }
    .col-sm-7 { flex: 0 0 auto; width: 58.333333%; } .col-sm-8 { flex: 0 0 auto; width: 66.666667%; }
    .col-sm-9 { flex: 0 0 auto; width: 75%; } .col-sm-10 { flex: 0 0 auto; width: 83.333333%; }
    .col-sm-11 { flex: 0 0 auto; width: 91.666667%; } .col-sm-12 { flex: 0 0 auto; width: 100%; }
}
@media (min-width: 768px) {
    .col-md { flex: 1 0 0; } .col-md-auto { flex: 0 0 auto; width: auto; }
    .col-md-1 { flex: 0 0 auto; width: 8.333333%; } .col-md-2 { flex: 0 0 auto; width: 16.666667%; }
    .col-md-3 { flex: 0 0 auto; width: 25%; } .col-md-4 { flex: 0 0 auto; width: 33.333333%; }
    .col-md-5 { flex: 0 0 auto; width: 41.666667%; } .col-md-6 { flex: 0 0 auto; width: 50%; }
    .col-md-7 { flex: 0 0 auto; width: 58.333333%; } .col-md-8 { flex: 0 0 auto; width: 66.666667%; }
    .col-md-9 { flex: 0 0 auto; width: 75%; } .col-md-10 { flex: 0 0 auto; width: 83.333333%; }
    .col-md-11 { flex: 0 0 auto; width: 91.666667%; } .col-md-12 { flex: 0 0 auto; width: 100%; }
}
@media (min-width: 992px) {
    .col-lg { flex: 1 0 0; } .col-lg-auto { flex: 0 0 auto; width: auto; }
    .col-lg-1 { flex: 0 0 auto; width: 8.333333%; } .col-lg-2 { flex: 0 0 auto; width: 16.666667%; }
    .col-lg-3 { flex: 0 0 auto; width: 25%; } .col-lg-4 { flex: 0 0 auto; width: 33.333333%; }
    .col-lg-5 { flex: 0 0 auto; width: 41.666667%; } .col-lg-6 { flex: 0 0 auto; width: 50%; }
    .col-lg-7 { flex: 0 0 auto; width: 58.333333%; } .col-lg-8 { flex: 0 0 auto; width: 66.666667%; }
    .col-lg-9 { flex: 0 0 auto; width: 75%; } .col-lg-10 { flex: 0 0 auto; width: 83.333333%; }
    .col-lg-11 { flex: 0 0 auto; width: 91.666667%; } .col-lg-12 { flex: 0 0 auto; width: 100%; }
}
@media (min-width: 1200px) {
    .col-xl { flex: 1 0 0; } .col-xl-auto { flex: 0 0 auto; width: auto; }
    .col-xl-1 { flex: 0 0 auto; width: 8.333333%; } .col-xl-2 { flex: 0 0 auto; width: 16.666667%; }
    .col-xl-3 { flex: 0 0 auto; width: 25%; } .col-xl-4 { flex: 0 0 auto; width: 33.333333%; }
    .col-xl-5 { flex: 0 0 auto; width: 41.666667%; } .col-xl-6 { flex: 0 0 auto; width: 50%; }
    .col-xl-7 { flex: 0 0 auto; width: 58.333333%; } .col-xl-8 { flex: 0 0 auto; width: 66.666667%; }
    .col-xl-9 { flex: 0 0 auto; width: 75%; } .col-xl-10 { flex: 0 0 auto; width: 83.333333%; }
    .col-xl-11 { flex: 0 0 auto; width: 91.666667%; } .col-xl-12 { flex: 0 0 auto; width: 100%; }
}
@media (min-width: 1400px) {
    .col-xxl { flex: 1 0 0; } .col-xxl-auto { flex: 0 0 auto; width: auto; }
    .col-xxl-1 { flex: 0 0 auto; width: 8.333333%; } .col-xxl-2 { flex: 0 0 auto; width: 16.666667%; }
    .col-xxl-3 { flex: 0 0 auto; width: 25%; } .col-xxl-4 { flex: 0 0 auto; width: 33.333333%; }
    .col-xxl-5 { flex: 0 0 auto; width: 41.666667%; } .col-xxl-6 { flex: 0 0 auto; width: 50%; }
    .col-xxl-7 { flex: 0 0 auto; width: 58.333333%; } .col-xxl-8 { flex: 0 0 auto; width: 66.666667%; }
    .col-xxl-9 { flex: 0 0 auto; width: 75%; } .col-xxl-10 { flex: 0 0 auto; width: 83.333333%; }
    .col-xxl-11 { flex: 0 0 auto; width: 91.666667%; } .col-xxl-12 { flex: 0 0 auto; width: 100%; }
}

/* —— Display —— */
.d-none { display: none !important; }
.d-inline { display: inline !important; }
.d-block { display: block !important; }
.d-flex { display: flex !important; }
.d-inline-flex { display: inline-flex !important; }
.d-grid { display: grid !important; }

@media (min-width: 576px) {
    .d-sm-none { display: none !important; } .d-sm-inline { display: inline !important; }
    .d-sm-block { display: block !important; } .d-sm-flex { display: flex !important; }
    .d-sm-inline-flex { display: inline-flex !important; } .d-sm-grid { display: grid !important; }
}
@media (min-width: 768px) {
    .d-md-none { display: none !important; } .d-md-inline { display: inline !important; }
    .d-md-block { display: block !important; } .d-md-flex { display: flex !important; }
    .d-md-inline-flex { display: inline-flex !important; } .d-md-grid { display: grid !important; }
}
@media (min-width: 992px) {
    .d-lg-none { display: none !important; } .d-lg-inline { display: inline !important; }
    .d-lg-block { display: block !important; } .d-lg-flex { display: flex !important; }
    .d-lg-inline-flex { display: inline-flex !important; } .d-lg-grid { display: grid !important; }
}
@media (min-width: 1200px) {
    .d-xl-none { display: none !important; } .d-xl-block { display: block !important; }
    .d-xl-flex { display: flex !important; } .d-xl-inline-flex { display: inline-flex !important; }
}
@media (min-width: 1400px) {
    .d-xxl-none { display: none !important; } .d-xxl-block { display: block !important; }
    .d-xxl-flex { display: flex !important; }
}

/* —— Flex —— */
.flex-row { flex-direction: row !important; }
.flex-column { flex-direction: column !important; }
.flex-wrap { flex-wrap: wrap !important; }
.flex-nowrap { flex-wrap: nowrap !important; }
.flex-fill { flex: 1 1 auto !important; }
.flex-grow-1 { flex-grow: 1 !important; }
.flex-shrink-0 { flex-shrink: 0 !important; }
.min-w-0 { min-width: 0 !important; }
.justify-content-start { justify-content: flex-start !important; }
.justify-content-end { justify-content: flex-end !important; }
.justify-content-center { justify-content: center !important; }
.justify-content-between { justify-content: space-between !important; }
.justify-content-around { justify-content: space-around !important; }
.align-items-start { align-items: flex-start !important; }
.align-items-center { align-items: center !important; }
.align-items-end { align-items: flex-end !important; }
.align-self-start { align-self: flex-start !important; }
.align-self-center { align-self: center !important; }
.gap-1 { gap: var(--cos-sp-1) !important; } .gap-2 { gap: var(--cos-sp-2) !important; }
.gap-3 { gap: var(--cos-sp-3) !important; } .gap-4 { gap: var(--cos-sp-4) !important; }
.gap-5 { gap: var(--cos-sp-5) !important; }

/* —— Spacing —— */
.m-0 { margin: var(--cos-sp-0) !important; } .m-1 { margin: var(--cos-sp-1) !important; }
.m-2 { margin: var(--cos-sp-2) !important; } .m-3 { margin: var(--cos-sp-3) !important; }
.m-4 { margin: var(--cos-sp-4) !important; } .m-5 { margin: var(--cos-sp-5) !important; }
.mt-0 { margin-top: var(--cos-sp-0) !important; } .mt-1 { margin-top: var(--cos-sp-1) !important; }
.mt-2 { margin-top: var(--cos-sp-2) !important; } .mt-3 { margin-top: var(--cos-sp-3) !important; }
.mt-4 { margin-top: var(--cos-sp-4) !important; } .mt-5 { margin-top: var(--cos-sp-5) !important; }
.mb-0 { margin-bottom: var(--cos-sp-0) !important; } .mb-1 { margin-bottom: var(--cos-sp-1) !important; }
.mb-2 { margin-bottom: var(--cos-sp-2) !important; } .mb-3 { margin-bottom: var(--cos-sp-3) !important; }
.mb-4 { margin-bottom: var(--cos-sp-4) !important; } .mb-5 { margin-bottom: var(--cos-sp-5) !important; }
.ms-0 { margin-inline-start: var(--cos-sp-0) !important; } .ms-1 { margin-inline-start: var(--cos-sp-1) !important; }
.ms-2 { margin-inline-start: var(--cos-sp-2) !important; } .ms-3 { margin-inline-start: var(--cos-sp-3) !important; }
.ms-auto { margin-inline-start: auto !important; }
.me-0 { margin-inline-end: var(--cos-sp-0) !important; } .me-1 { margin-inline-end: var(--cos-sp-1) !important; }
.me-2 { margin-inline-end: var(--cos-sp-2) !important; } .me-3 { margin-inline-end: var(--cos-sp-3) !important; }
.me-auto { margin-inline-end: auto !important; }
.mx-0 { margin-inline: var(--cos-sp-0) !important; } .mx-1 { margin-inline: var(--cos-sp-1) !important; }
.mx-2 { margin-inline: var(--cos-sp-2) !important; } .mx-3 { margin-inline: var(--cos-sp-3) !important; }
.mx-auto { margin-inline: auto !important; }
.my-0 { margin-block: var(--cos-sp-0) !important; } .my-1 { margin-block: var(--cos-sp-1) !important; }
.my-2 { margin-block: var(--cos-sp-2) !important; } .my-3 { margin-block: var(--cos-sp-3) !important; }
.my-4 { margin-block: var(--cos-sp-4) !important; } .my-5 { margin-block: var(--cos-sp-5) !important; }
.p-0 { padding: var(--cos-sp-0) !important; } .p-1 { padding: var(--cos-sp-1) !important; }
.p-2 { padding: var(--cos-sp-2) !important; } .p-3 { padding: var(--cos-sp-3) !important; }
.p-4 { padding: var(--cos-sp-4) !important; } .p-5 { padding: var(--cos-sp-5) !important; }
.pt-0 { padding-top: var(--cos-sp-0) !important; } .pt-1 { padding-top: var(--cos-sp-1) !important; }
.pt-2 { padding-top: var(--cos-sp-2) !important; } .pt-3 { padding-top: var(--cos-sp-3) !important; }
.pb-0 { padding-bottom: var(--cos-sp-0) !important; } .pb-1 { padding-bottom: var(--cos-sp-1) !important; }
.pb-2 { padding-bottom: var(--cos-sp-2) !important; } .pb-3 { padding-bottom: var(--cos-sp-3) !important; }
.ps-0 { padding-inline-start: var(--cos-sp-0) !important; } .ps-1 { padding-inline-start: var(--cos-sp-1) !important; }
.ps-2 { padding-inline-start: var(--cos-sp-2) !important; } .ps-3 { padding-inline-start: var(--cos-sp-3) !important; }
.pe-0 { padding-inline-end: var(--cos-sp-0) !important; } .pe-1 { padding-inline-end: var(--cos-sp-1) !important; }
.pe-2 { padding-inline-end: var(--cos-sp-2) !important; } .pe-3 { padding-inline-end: var(--cos-sp-3) !important; }
.px-0 { padding-inline: var(--cos-sp-0) !important; } .px-1 { padding-inline: var(--cos-sp-1) !important; }
.px-2 { padding-inline: var(--cos-sp-2) !important; } .px-3 { padding-inline: var(--cos-sp-3) !important; }
.py-0 { padding-block: var(--cos-sp-0) !important; } .py-1 { padding-block: var(--cos-sp-1) !important; }
.py-2 { padding-block: var(--cos-sp-2) !important; } .py-3 { padding-block: var(--cos-sp-3) !important; }
.py-4 { padding-block: var(--cos-sp-4) !important; } .py-5 { padding-block: var(--cos-sp-5) !important; }

@media (min-width: 992px) {
    .mb-lg-0 { margin-bottom: var(--cos-sp-0) !important; }
    .mb-lg-4 { margin-bottom: var(--cos-sp-4) !important; }
    .mb-lg-5 { margin-bottom: var(--cos-sp-5) !important; }
}

/* —— Typography —— */
.h1, h1 { font-size: var(--cos-type-2xl, 2rem); font-weight: var(--cos-type-weight-bold, 700); line-height: var(--cos-type-leading-tight, 1.25); margin-block: 0 0.5rem; }
.h2, h2 { font-size: calc(var(--cos-type-xl, 1.5rem) * 1.1); font-weight: var(--cos-type-weight-bold, 700); line-height: var(--cos-type-leading-tight, 1.25); margin-block: 0 0.5rem; }
.h3, h3 { font-size: var(--cos-type-xl, 1.5rem); font-weight: 600; line-height: var(--cos-type-leading-tight, 1.25); margin-block: 0 0.5rem; }
.h4, h4 { font-size: var(--cos-type-lg, 1.125rem); font-weight: 600; margin-block: 0 0.5rem; }
.h5, h5 { font-size: var(--cos-type-md, 1rem); font-weight: 600; margin-block: 0 0.5rem; }
.h6, h6 { font-size: var(--cos-type-sm, 0.875rem); font-weight: 600; margin-block: 0 0.5rem; }
.small, small { font-size: var(--cos-type-sm, 0.875rem); }
.fs-4 { font-size: calc(var(--cos-type-md, 1rem) * 1.5) !important; }
.fw-semibold { font-weight: 600 !important; }
.fw-bold { font-weight: var(--cos-type-weight-bold, 700) !important; }
.text-muted { color: var(--cos-color-muted, var(--cos-muted, #6b7280)) !important; }
.text-primary { color: var(--bs-primary) !important; }
.text-secondary { color: var(--bs-secondary) !important; }
.text-success { color: var(--bs-success) !important; }
.text-danger { color: var(--bs-danger) !important; }
.text-uppercase { text-transform: uppercase !important; letter-spacing: 0.04em; }
.text-center { text-align: center !important; }
.text-start { text-align: start !important; }
.text-end { text-align: end !important; }
.text-bg-light { color: var(--cos-color-ink) !important; background-color: var(--cos-color-surface-2, #f8faf9) !important; }
.text-bg-secondary { color: #fff !important; background-color: var(--bs-secondary) !important; }
.text-bg-success { color: #fff !important; background-color: var(--bs-success) !important; }
.text-bg-danger { color: #fff !important; background-color: var(--bs-danger) !important; }
.text-bg-info { color: #fff !important; background-color: var(--bs-info) !important; }
.text-bg-dark { color: #fff !important; background-color: var(--cos-color-ink, #111827) !important; }
.opacity-75 { opacity: 0.75 !important; }

/* —— Forms —— */
.form-label {
    display: inline-block;
    margin-bottom: var(--cos-sp-1);
    font-size: var(--cos-type-sm, 0.875rem);
    font-weight: var(--cos-type-weight-medium, 500);
}
.form-control,
.form-select {
    display: block;
    width: 100%;
    padding: 0.5rem 0.75rem;
    font-size: var(--cos-type-md, 1rem);
    line-height: var(--cos-type-leading-normal, 1.5);
    color: var(--bs-body-color);
    background-color: var(--cos-color-surface, #fff);
    border: 1px solid var(--bs-border-color);
    border-radius: var(--bs-border-radius-sm);
    transition: border-color var(--cos-motion-fast, 120ms), box-shadow var(--cos-motion-fast, 120ms);
    appearance: none;
}
.form-control:focus,
.form-select:focus {
    outline: 0;
    border-color: var(--bs-primary);
    box-shadow: var(--cos-shadow-focus, 0 0 0 3px var(--bs-focus-ring-color));
}
.form-control::placeholder { color: var(--cos-color-muted); opacity: 0.7; }
.form-control-sm,
.form-select-sm {
    padding: 0.25rem 0.5rem;
    font-size: var(--cos-type-sm, 0.875rem);
    border-radius: var(--cos-radius-sm, 0.375rem);
}
textarea.form-control { min-height: calc(1.5em + 1rem + 2px); resize: vertical; }
.form-select {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='m2 5 6 6 6-6'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 16px 12px;
    padding-inline-end: 2.25rem;
}
[dir="rtl"] .form-select {
    background-position: left 0.75rem center;
    padding-inline-start: 2.25rem;
    padding-inline-end: 0.75rem;
}
.form-text { margin-top: var(--cos-sp-1); font-size: var(--cos-type-sm, 0.875rem); color: var(--cos-color-muted); }
.form-check {
    display: block;
    min-height: 1.25rem;
    padding-inline-start: 1.5em;
    margin-bottom: var(--cos-sp-1);
}
.form-check-input {
    float: inline-start;
    margin-inline-start: -1.5em;
    width: 1em;
    height: 1em;
    margin-top: 0.2em;
    accent-color: var(--bs-primary);
    border: 1px solid var(--bs-border-color);
    border-radius: 0.25em;
}
.form-check-label { cursor: pointer; }
.visually-hidden,
.visually-hidden-focusable:not(:focus):not(:focus-within) {
    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;
}
.visually-hidden-focusable:focus,
.visually-hidden-focusable:focus-within {
    position: absolute !important;
    z-index: 2000;
}

/* —— Buttons —— */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    padding: 0.5rem 1rem;
    font-size: var(--cos-type-md, 1rem);
    font-weight: var(--cos-type-weight-medium, 500);
    line-height: var(--cos-type-leading-normal, 1.5);
    text-align: center;
    text-decoration: none;
    vertical-align: middle;
    cursor: pointer;
    user-select: none;
    border: 1px solid transparent;
    border-radius: var(--bs-border-radius-sm);
    background-color: transparent;
    color: var(--bs-body-color);
    transition: color var(--cos-motion-fast, 120ms), background-color var(--cos-motion-fast, 120ms),
        border-color var(--cos-motion-fast, 120ms), box-shadow var(--cos-motion-fast, 120ms);
}
.btn:hover { text-decoration: none; }
.btn:focus-visible { outline: 0; box-shadow: var(--cos-shadow-focus); }
.btn:disabled, .btn.disabled { opacity: 0.55; pointer-events: none; }
.btn-sm { padding: 0.25rem 0.65rem; font-size: var(--cos-type-sm, 0.875rem); border-radius: var(--cos-radius-sm, 0.375rem); }
.btn-primary {
    color: var(--cos-color-inverse, #fff);
    background-color: var(--bs-primary);
    border-color: var(--bs-primary);
}
.btn-primary:hover { filter: brightness(1.08); color: var(--cos-color-inverse, #fff); }
.btn-secondary {
    color: var(--cos-color-inverse, #fff);
    background-color: var(--bs-secondary);
    border-color: var(--bs-secondary);
}
.btn-secondary:hover { filter: brightness(1.08); color: var(--cos-color-inverse, #fff); }
.btn-outline-primary {
    color: var(--bs-primary);
    border-color: var(--bs-primary);
    background-color: transparent;
}
.btn-outline-primary:hover {
    color: var(--cos-color-inverse, #fff);
    background-color: var(--bs-primary);
    border-color: var(--bs-primary);
}
.btn-outline-secondary {
    color: var(--bs-secondary);
    border-color: var(--bs-border-color);
    background-color: transparent;
}
.btn-outline-secondary:hover {
    color: var(--bs-body-color);
    background-color: var(--cos-color-surface-2, #f8faf9);
    border-color: var(--bs-border-color);
}
.btn-outline-danger {
    color: var(--bs-danger);
    border-color: var(--bs-danger);
    background-color: transparent;
}
.btn-outline-danger:hover {
    color: #fff;
    background-color: var(--bs-danger);
    border-color: var(--bs-danger);
}
.btn-ghost {
    color: var(--bs-body-color);
    background-color: transparent;
    border-color: transparent;
}
.btn-ghost:hover {
    background-color: color-mix(in srgb, var(--bs-primary) 10%, transparent);
    color: var(--bs-primary);
}

/* —— Button group —— */
.btn-group {
    position: relative;
    display: inline-flex;
    vertical-align: middle;
}
.btn-group > .btn {
    position: relative;
    flex: 1 1 auto;
}
.btn-group > .btn:not(:first-child) {
    margin-inline-start: -1px;
    border-start-start-radius: 0;
    border-end-start-radius: 0;
}
.btn-group > .btn:not(:last-child) {
    border-start-end-radius: 0;
    border-end-end-radius: 0;
}
.btn-group-sm > .btn { padding: 0.25rem 0.65rem; font-size: var(--cos-type-sm, 0.875rem); }

/* —— Cards —— */
.card {
    position: relative;
    display: flex;
    flex-direction: column;
    min-width: 0;
    word-wrap: break-word;
    background-color: var(--cos-color-surface, #fff);
    background-clip: border-box;
    border: 1px solid var(--bs-border-color);
    border-radius: var(--bs-border-radius);
}
.card-header {
    padding: var(--cos-sp-3) var(--cos-sp-4);
    margin-bottom: 0;
    background-color: var(--cos-color-surface-2, #f8faf9);
    border-bottom: 1px solid var(--bs-border-color);
    border-start-start-radius: calc(var(--bs-border-radius) - 1px);
    border-start-end-radius: calc(var(--bs-border-radius) - 1px);
    font-weight: 600;
}
.card-body {
    flex: 1 1 auto;
    padding: var(--cos-sp-4);
}
.card-body.row { --bs-gutter-x: var(--cos-space-4, 1rem); }

/* —— Alerts —— */
.alert {
    position: relative;
    padding: var(--cos-sp-3) var(--cos-sp-4);
    margin-bottom: var(--cos-sp-4);
    border: 1px solid transparent;
    border-radius: var(--bs-border-radius-sm);
}
.alert-success { color: var(--cos-status-success); background: var(--cos-status-success-soft); border-color: color-mix(in srgb, var(--cos-status-success) 25%, transparent); }
.alert-danger { color: var(--cos-status-danger); background: var(--cos-status-danger-soft); border-color: color-mix(in srgb, var(--cos-status-danger) 25%, transparent); }
.alert-warning { color: var(--cos-status-warning); background: var(--cos-status-warning-soft); border-color: color-mix(in srgb, var(--cos-status-warning) 25%, transparent); }
.alert-info { color: var(--cos-status-info); background: var(--cos-status-info-soft); border-color: color-mix(in srgb, var(--cos-status-info) 25%, transparent); }

/* —— Lists —— */
.list-group {
    display: flex;
    flex-direction: column;
    padding-inline-start: 0;
    margin-bottom: 0;
    border-radius: var(--bs-border-radius);
}
.list-group-item {
    position: relative;
    display: block;
    padding: var(--cos-sp-3) var(--cos-sp-4);
    color: var(--bs-body-color);
    text-decoration: none;
    background-color: var(--cos-color-surface, #fff);
    border: 1px solid var(--bs-border-color);
}
.list-group-item + .list-group-item { border-top-width: 0; }
.list-group-item:first-child { border-start-start-radius: inherit; border-start-end-radius: inherit; }
.list-group-item:last-child { border-end-start-radius: inherit; border-end-end-radius: inherit; }
.list-group-item:hover { background-color: var(--cos-color-surface-2, #f8faf9); }

/* —— Tables —— */
.table {
    width: 100%;
    margin-bottom: var(--cos-sp-4);
    border-collapse: collapse;
    vertical-align: top;
}
.table > :not(caption) > * > * {
    padding: var(--cos-sp-2) var(--cos-sp-3);
    border-bottom: 1px solid var(--bs-border-color);
}
.table > thead { vertical-align: bottom; }
.table > thead > tr > th { font-weight: 600; text-align: start; }
.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

/* —— Nav pills —— */
.nav {
    display: flex;
    flex-wrap: wrap;
    padding-inline-start: 0;
    margin-bottom: 0;
    list-style: none;
}
.nav-item { display: list-item; }
.nav-link {
    display: block;
    padding: var(--cos-sp-2) var(--cos-sp-3);
    color: var(--bs-body-color);
    text-decoration: none;
    border-radius: var(--bs-border-radius-sm);
    transition: color var(--cos-motion-fast, 120ms), background-color var(--cos-motion-fast, 120ms);
}
.nav-link:hover { color: var(--bs-primary); }
.nav-pills .nav-link.active,
.nav-link.active {
    color: var(--cos-color-inverse, #fff);
    background-color: var(--bs-primary);
}

/* —— Badges —— */
.badge {
    display: inline-block;
    padding: 0.3em 0.55em;
    font-size: 0.75em;
    font-weight: 600;
    line-height: 1;
    color: var(--cos-color-inverse, #fff);
    text-align: center;
    white-space: nowrap;
    vertical-align: baseline;
    border-radius: var(--cos-radius-pill, 999px);
    background-color: var(--bs-primary);
}

/* —— Position & sizing —— */
.position-relative { position: relative !important; }
.position-absolute { position: absolute !important; }
.top-0 { top: 0 !important; }
.start-0 { inset-inline-start: 0 !important; }
.end-0 { inset-inline-end: 0 !important; }
.w-100 { width: 100% !important; }
.h-100 { height: 100% !important; }

/* —— Borders & shadows —— */
.border { border: 1px solid var(--bs-border-color) !important; }
.border-0 { border: 0 !important; }
.border-bottom { border-bottom: 1px solid var(--bs-border-color) !important; }
.border-light-subtle { border-color: color-mix(in srgb, var(--bs-border-color) 60%, transparent) !important; }
.rounded { border-radius: var(--bs-border-radius-sm) !important; }
.rounded-3 { border-radius: var(--bs-border-radius) !important; }
.shadow-sm { box-shadow: var(--cos-shadow-sm, 0 1px 2px rgba(15, 23, 42, 0.06)) !important; }
.shadow { box-shadow: var(--cos-shadow-md, 0 8px 24px rgba(15, 23, 42, 0.08)) !important; }