:root {
    --kb-bg: #ffffff;
    --kb-surface: #e8e8e8;
    --kb-surface-light: #f0f0f0;
    --kb-text: #1a1a1a;
    --kb-muted: #3d3d3d;
    --kb-primary: #37105a;
    --kb-primary-hover: #24073c;
    --kb-primary-text: #ffffff;
    --kb-success: #146c2e;
    --kb-danger: #b3261e;
    --kb-focus: #ffbf00;
    --kb-border: #4a4a4a;
    --kb-border-light: #a4a4a4;
    --kb-font: "Segoe UI", "Noto Sans Tamil", system-ui, sans-serif;
}

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

html {
    font-size: 18px;
    font-family: "Segoe UI", sans-serif;
}

body {
    margin: 0;
    font-family: var(--kb-font);
    line-height: 1.5;
    color: var(--kb-text);
    background: var(--kb-surface);
    font-size: 15px;
}

main#main {
    background: var(--kb-bg);
}

:lang(ta) {
    line-height: 1.7;
}

:focus {
    outline: 3px solid var(--kb-focus);
    outline-offset: 2px;
}

.kb-auth-lang {
    text-align: center;
    margin-bottom: 0;
    font-size: 13px;
}

.skip-links {
    position: absolute;
    left: 0.5rem;
    top: 0.5rem;
    z-index: 20;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.skip-links:not(:focus-within) {
    clip: rect(0 0 0 0);
    clip-path: inset(50%);
    height: 1px;
    width: 1px;
    overflow: hidden;
    white-space: nowrap;
}

.skip-link {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    padding: 0.5rem 1rem;
    background: var(--kb-text);
    color: #fff;
}

button,
.kb-primary,
.kb-secondary,
.kb-danger,
input:not([type="radio"]):not([type="checkbox"]),
select,
textarea {
    min-height: 44px;
    font: inherit;
}

.kb-header,
.kb-nav,
.kb-footer,
main {
    max-width: 72rem;
    margin: 0 auto;
    padding: 1rem 1.25rem;
}

.kb-nav {
    padding-top: 0.25rem;   
    padding-bottom: 0.25rem;
}

.kb-header {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 1rem;
    background: var(--kb-primary);
    border-bottom: 1px solid #542181;
}

.kb-header img{
    filter: brightness(0) invert(1);
}

.kb-product-name {
    font-weight: 700;
    margin: 0;
    font-size: 1.15rem;
    text-align: center;
}

.kb-auth__main h1 {
    text-align: center;
    margin: 0 0 8px;
    font-size: 32px;
    letter-spacing: -0.03em;
    font-weight: 400;
    color: var(--kb-primary);
}

.kb-header-tools {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem 1.5rem;
    align-items: center;
}

.kb-user {
    margin-bottom: 0;
    color: var(--kb-focus);
    text-transform: capitalize;
}

.kb-lang {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    align-items: center;
    min-height: auto;
    background: rgba(0, 0, 0, 0.15);
    border-radius: 8px;
    padding: 0.25rem 0.5rem;
    color: var(--kb-surface);
}

.kb-lang a, .kb-user a {
    color: var(--kb-surface);
    text-decoration: none;
}

.kb-user a:first-child {
    margin-left: 15px;
}

.kb-lang a[aria-current="true"] {
    font-weight: 700;
    color: var(--kb-bg);
}

.kb-error-heading {
    margin: 0 0 0.25rem;
    font-weight: 700;
}

.kb-status,
.kb-error-box {
    padding: 0.75rem 1rem;
    margin: 0 0 1rem;
    max-width: 40rem;
    border: 2px solid var(--kb-border);
}

.kb-status {
    border-color: var(--kb-success);
    background: #e8f5ec;
    color: var(--kb-text);
}

.kb-error-box {
    border-color: var(--kb-danger);
    background: #fdecea;
    color: var(--kb-text);
}

.kb-status p,
.kb-error-box p,
.kb-error-box ul {
    margin: 0;
}

.kb-error-box ul {
    padding-left: 1.25rem;
}

kbd {
    font: inherit;
    font-weight: 700;
    padding: 0.1rem 0.35rem;
    border: 1px solid var(--kb-border);
}

.kb-nav {
    background: var(--kb-primary-hover);
}

.kb-nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1rem;
}

.kb-nav a {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    padding: 0 0.25rem;
    font-weight: 600;
    color: var(--kb-bg);
    text-decoration: none;
}

.kb-nav a[aria-current="page"] {
    background: var(--kb-focus);
    color: var(--kb-text);
    border-radius: 8px;
}

.kb-required {
    color: var(--kb-danger);
    font-weight: 700;
}

.kb-input-wrap {
    position: relative;
    max-width: 28rem;
}

.kb-input-wrap input:not([type="radio"]):not([type="checkbox"]) {
    width: 100%;
    max-width: none;
    padding-right: 2.75rem;
}

.kb-password-toggle {
    position: absolute;
    top: 0;
    right: 0;
    width: 44px;
    height: 100%;
    min-height: 38px;
    margin: 0;
    padding: 0;
    border: 0;
    background: transparent;
    color: var(--kb-muted);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.kb-password-toggle:hover,
.kb-password-toggle:focus {
    color: var(--kb-primary);
}

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

.kb-field label,
.kb-option {
    display: block;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.kb-field input:not([type="radio"]):not([type="checkbox"]),
.kb-field select,
.kb-field textarea {
    width: 100%;
    max-width: 28rem;
    border: 1px solid var(--kb-border-light);
    background: #fff;
    color: var(--kb-text);
    padding: 8px 10px;
    min-height: 38px;
    font: inherit;
    line-height: 1.4;
    background: white;
    border-radius: 8px;
}

.kb-choice {
    margin: 0 0 1rem;
    padding: 0;
    border: 0;
    max-width: 28rem;
}

.kb-choice legend {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.kb-choice label {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    min-height: 44px;
    margin: 0 1.25rem 0 0;
    font-weight: 600;
}

.kb-choice input {
    width: auto;
    max-width: none;
    margin: 0;
}

.kb-hint {
    margin: 0.25rem 0 0;
    color: var(--kb-muted);
}

.kb-error {
    margin: 0.75rem 0;
    color: var(--kb-danger);
    font-weight: 600;
}

.kb-error.kb-error-box {
    margin: 0 0 1rem;
    color: var(--kb-text);
}

.kb-error-box .kb-error-heading {
    color: var(--kb-danger);
}

.kb-primary,
.kb-secondary,
.kb-danger {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    padding: 0.5rem 1.25rem;
    cursor: pointer;
    text-decoration: none;
    border: 2px solid var(--kb-primary);
}

.kb-primary {
    background: var(--kb-primary);
    color: var(--kb-primary-text);
    border-radius: 8px;
}

.kb-secondary {
    background: #fff;
    color: var(--kb-primary);
    border-radius: 8px;
}

.kb-danger {
    background: var(--kb-danger);
    border-color: var(--kb-danger);
    color: #fff;
    border-radius: 8px;
}

.kb-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

header.kb-header .kb-product-name {
    text-align: left;
}

.kb-actions [role="group"] {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.kb-actions [aria-pressed="true"] {
    box-shadow: inset 0 0 0 2px var(--kb-text);
}

.kb-row-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.kb-row-actions a {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
}

.kb-pagination {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem 0.75rem;
    margin-top: 1.5rem;
}

.kb-pagination ol {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.35rem;
    list-style: none;
    padding: 0;
    margin: 0;
}

.kb-pagination a,
.kb-pagination [aria-current="page"] {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    min-width: 44px;
    padding: 0.25rem 0.75rem;
}

.kb-pagination [aria-current="page"] {
    font-weight: 700;
    border: 2px solid var(--kb-text);
}

.kb-pagination-gap {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    padding: 0 0.25rem;
}

.kb-auth {
    min-height: 100vh;
    background: var(--kb-surface);
}

.kb-auth__brand,
.kb-auth__main {
    max-width: 22rem;
    margin: 0 auto;
    padding: 1.25rem;
}

.kb-auth__main {
    background: #fff;
    border: 1px solid var(--kb-border-light);
    border-radius: 8px;
}

.kb-auth--install .kb-auth__brand,
.kb-auth--install .kb-auth__main {
    max-width: 36rem;
}

.kb-req {
    list-style: none;
    padding: 0;
    margin: 0 0 1.25rem;
}

.kb-req li {
    margin: 0 0 0.5rem;
    padding: 0.75rem;
    border: 1px solid var(--kb-border-light);
    border-radius: 8px;
}

.kb-req li[data-ok="1"] {
    border-color: var(--kb-success);
}

.kb-req li[data-ok="0"] {
    border-color: var(--kb-danger);
}

.kb-req__label,
.kb-req__status {
    margin: 0;
}

.kb-req__status {
    margin-top: 0.25rem;
}

.kb-check {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    min-height: 44px;
    font-weight: 600;
}

.kb-check input {
    width: 1.25rem;
    height: 1.25rem;
    margin-top: 0.35rem;
    flex-shrink: 0;
}

.kb-footer {
    color: var(--kb-bg);
    background: var(--kb-text);
    padding-top: 1rem;
    padding-bottom: 1rem;
    display: flex;
    justify-content: space-between;
}

.kb-footer p{
    margin-bottom: 0;
}

.kb-footer a{
    color: var(--kb-border-light);
    text-decoration: none;    
}

.kb-table-wrap {
    overflow-x: auto;
}

table.kb-table {
    width: 100%;
    border-collapse: collapse;
}

.kb-table th,
.kb-table td {
    text-align: left;
    padding: 0.6rem 0.5rem;
    border-bottom: 1px solid #ccc;
    vertical-align: top;
}

.kb-table th[scope="col"].num,
.kb-table td.num {
    text-align: right;
}

.kb-card-option {
    display: block;
    margin: 0 0 0.5rem;
    padding: 0.75rem;
    border: 1px solid var(--kb-border-light);
    border-radius: 8px;
    max-width: 36rem;
}

.kb-session-left{
    background: var(--kb-success);
    color: var(--kb-bg);
    padding: 0.25rem 0.5rem;
    border-radius: 8px;
    font-size: 0.85em;
    font-weight: 600;
    margin-left: 0.5rem;
}

.kb-card-option:has(input:checked) {
    border-color: var(--kb-primary);
    background: #e8f1fb;
}

.kb-card-option input {
    margin-right: 0.5rem;
}

.kb-progress ol {
    list-style: none;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1rem;
}


.kb-progress [aria-current="step"] {
    font-weight: 700;
    background: var(--kb-surface);
}

.kb-summary {
    background: var(--kb-surface-light);
    padding: 1rem;
    border: 1px solid var(--kb-border-light);
    border-radius: 8px;
    max-width: 28rem;
}

.kb-dl dt {
    font-weight: 700;
}

.kb-dl dd {
    margin: 0 0 0.5rem;
}

#page-title {
    font-size: 2rem;
    border-bottom: 1px solid var(--kb-border-light);
    padding-bottom: 1rem;
    color: var(--kb-primary);
    font-weight: 300;
}

#today-heading {
    font-size: 1.5rem;
}

nav.kb-progress{
    background: var(--kb-surface-light);
    margin-bottom: 0.75rem;
}

nav.kb-progress ol{
    list-style: none;
    padding: 0;
    margin: 0;
}

nav.kb-progress li{
    padding: 0.5rem;
    display: inline-block;
    position: relative;
}

@media (prefers-contrast: more) {
    :root {
        --kb-bg: #000;
        --kb-surface: #000;
        --kb-text: #fff;
        --kb-muted: #fff;
        --kb-primary: #ffff00;
        --kb-primary-text: #000;
        --kb-focus: #00ffff;
        --kb-danger: #ff6b6b;
        --kb-border: #fff;
    }

    .kb-primary {
        color: #000;
    }

    .kb-field input,
    .kb-auth__main,
    .kb-secondary {
        background: #000;
        color: #fff;
    }
}

#debug-icon,
.debug-bar-toggler {
    display: none !important;
}

.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;
}

.kb-idle {
    border: 3px solid var(--kb-danger);
    background: var(--kb-surface);
    padding: 1rem;
    margin-bottom: 1rem;
}

.kb-dialog {
    width: min(36rem, calc(100vw - 2rem));
    max-width: 100%;
    padding: 1.5rem;
    border: 2px solid var(--kb-border);
    background: var(--kb-bg);
    color: var(--kb-text);
    font: inherit;
}

.kb-dialog::backdrop {
    background: rgba(0, 0, 0, 0.55);
}

.kb-dialog h2 {
    margin: 0 0 0.75rem;
    font-size: 1.5rem;
}

.kb-dialog p {
    margin: 0;
}

.kb-dialog .kb-actions {
    margin-top: 1.25rem;
}

html[data-theme="dark"] {
    --kb-bg: #121212;
    --kb-surface: #1e1e1e;
    --kb-text: #f2f2f2;
    --kb-muted: #d0d0d0;
    --kb-primary: #7eb6ff;
    --kb-primary-text: #000;
    --kb-focus: #ffbf00;
    --kb-danger: #ff8a80;
    --kb-border: #c0c0c0;
}

html[data-theme="high-contrast"] {
    --kb-bg: #000;
    --kb-surface: #000;
    --kb-text: #fff;
    --kb-muted: #fff;
    --kb-primary: #ffff00;
    --kb-primary-text: #000;
    --kb-focus: #00ffff;
    --kb-danger: #ff6b6b;
    --kb-border: #fff;
}

html[data-theme="high-contrast"] .kb-primary,
html[data-theme="dark"] .kb-primary {
    color: var(--kb-primary-text);
}

@media (prefers-reduced-motion: reduce) {
    * {
        animation: none !important;
        transition: none !important;
    }
}