/* =====================================================================
   Tasi3a Maths — template « le cahier de maths »
   Squared paper, a red margin, navy ink, a yellow highlighter.
   One file, no framework. Colours in OKLCH, the same as com_rachedlms (ui.css).
   ===================================================================== */

@font-face { font-family: "Tajawal"; font-style: normal; font-weight: 400; font-display: swap; src: url(../fonts/tajawal-400.woff2) format("woff2"); }
@font-face { font-family: "Tajawal"; font-style: normal; font-weight: 700; font-display: swap; src: url(../fonts/tajawal-700.woff2) format("woff2"); }
@font-face { font-family: "Tajawal"; font-style: normal; font-weight: 900; font-display: swap; src: url(../fonts/tajawal-900.woff2) format("woff2"); }

:root {
  color-scheme: light;
  --t-brand: oklch(0.46 0.14 254);
  --t-brand-ink: oklch(0.40 0.13 256);
  --t-navy: oklch(0.27 0.07 262);
  --t-navy-2: oklch(0.33 0.08 260);
  --t-gold: oklch(0.85 0.165 88);
  --t-gold-ink: oklch(0.30 0.06 70);
  --t-red: oklch(0.70 0.11 25);
  --t-ok: oklch(0.40 0.10 155);
  --t-ko: oklch(0.42 0.16 27);
  --t-bg: oklch(0.972 0.01 250);
  --t-surface: oklch(0.998 0.002 252);
  --t-ink: oklch(0.25 0.04 262);
  --t-ink-2: oklch(0.42 0.03 262);
  --t-line: color-mix(in oklab, var(--t-brand) 15%, var(--t-surface));
  --t-line-strong: color-mix(in oklab, var(--t-brand) 32%, var(--t-surface));
  --t-grid: color-mix(in oklab, var(--t-brand) 8%, var(--t-bg));
  --t-grid-on-brand: color-mix(in oklab, white 30%, var(--t-brand));
  --t-brand-soft: color-mix(in oklab, var(--t-brand) 10%, var(--t-surface));
  --t-gold-soft: color-mix(in oklab, var(--t-gold) 24%, var(--t-surface));
  --t-marker: color-mix(in oklab, var(--t-gold) 55%, transparent);
  --t-r: 16px;
  --t-r-l: 24px;
  --t-shadow: 0 1px 2px color-mix(in oklab, var(--t-navy) 8%, transparent), 0 8px 24px color-mix(in oklab, var(--t-navy) 8%, transparent);
  --t-focus: oklch(0.55 0.20 264);
  --t-ease: cubic-bezier(.2, .7, .2, 1);
  --t-wrap: 1180px;
  --t-gutter: clamp(16px, 4vw, 32px);
  --t-header-h: 68px;
}

@media (prefers-color-scheme: dark) {
  :root[data-t-scheme="auto"] {
    color-scheme: dark;
    --t-brand: oklch(0.72 0.12 252); --t-brand-ink: oklch(0.82 0.10 252); --t-navy: oklch(0.22 0.05 262); --t-navy-2: oklch(0.27 0.06 262);
    --t-gold: oklch(0.84 0.15 88); --t-bg: oklch(0.19 0.025 262); --t-surface: oklch(0.245 0.03 262); --t-ink: oklch(0.95 0.01 262); --t-ink-2: oklch(0.80 0.02 262);
    --t-grid-on-brand: color-mix(in oklab, black 25%, var(--t-brand)); --t-red: oklch(0.60 0.10 25);
  }
}
:root[data-t-scheme="dark"] {
  color-scheme: dark;
  --t-brand: oklch(0.72 0.12 252); --t-brand-ink: oklch(0.82 0.10 252); --t-navy: oklch(0.22 0.05 262); --t-navy-2: oklch(0.27 0.06 262);
  --t-gold: oklch(0.84 0.15 88); --t-bg: oklch(0.19 0.025 262); --t-surface: oklch(0.245 0.03 262); --t-ink: oklch(0.95 0.01 262); --t-ink-2: oklch(0.80 0.02 262);
  --t-grid-on-brand: color-mix(in oklab, black 25%, var(--t-brand)); --t-red: oklch(0.60 0.10 25);
}

/* ------------------------------------------------------------------ base */

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; scroll-padding-top: calc(var(--t-header-h) + 12px); }
body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  font-family: "Tajawal", "Segoe UI", Tahoma, system-ui, sans-serif;
  font-size: clamp(1rem, .96rem + .2vw, 1.08rem);
  line-height: 1.75;
  color: var(--t-ink);
  background-color: var(--t-bg);
  background-image:
    linear-gradient(var(--t-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--t-grid) 1px, transparent 1px);
  background-size: 26px 26px;
  background-attachment: fixed;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
img, svg, video { max-width: 100%; height: auto; }
a { color: var(--t-brand-ink); text-underline-offset: .22em; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--t-focus); outline-offset: 2px; border-radius: 8px; }
h1, h2, h3, h4 { line-height: 1.35; font-weight: 900; margin: 1.4em 0 .5em; text-wrap: balance; color: var(--t-ink); }
h1 { font-size: clamp(1.6rem, 1.2rem + 1.6vw, 2.3rem); margin-top: .2em; }
h2 { font-size: clamp(1.3rem, 1.1rem + .8vw, 1.65rem); }
h3 { font-size: 1.2rem; }
p { margin: 0 0 1em; text-wrap: pretty; }
hr { border: 0; border-top: 2px dashed var(--t-line-strong); margin: 2rem 0; }
table { border-collapse: collapse; width: 100%; }
th, td { padding: .5rem .7rem; border-bottom: 1px solid var(--t-line); text-align: start; }
blockquote { margin: 1rem 0; padding: .6rem 1rem; border-inline-start: 4px solid var(--t-gold); background: var(--t-gold-soft); border-radius: 0 var(--t-r) var(--t-r) 0; }
mark, .tsa-marker { background: linear-gradient(transparent 55%, var(--t-marker) 55%); color: inherit; padding: 0 .1em; }
.tsa-sr { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }

.tsa-skip { position: absolute; inset-inline-start: 1rem; top: -100px; z-index: 100; padding: .6rem 1rem; border-radius: 10px; background: var(--t-gold); color: var(--t-gold-ink); font-weight: 900; }
.tsa-skip:focus { top: .6rem; }

.tsa-wrap { width: min(100% - 2 * var(--t-gutter), var(--t-wrap)); margin-inline: auto; }

/* ------------------------------------------------------------------ header */

.tsa-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in oklab, var(--t-surface) 92%, transparent);
  -webkit-backdrop-filter: saturate(1.4) blur(10px);
  backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--t-line);
  transition: box-shadow .2s var(--t-ease);
}
.tsa-header.is-stuck { box-shadow: 0 8px 24px color-mix(in oklab, var(--t-navy) 10%, transparent); }
.tsa-header-in { display: flex; align-items: center; gap: 1rem; min-height: var(--t-header-h); }

.tsa-brand { display: inline-flex; text-decoration: none; color: var(--t-ink); flex: none; }
.tsa-logo { display: inline-flex; align-items: center; gap: .55rem; }
.tsa-logo-mark { width: auto; height: 48px; flex: none; }
.tsa-footer .tsa-logo-mark { height: 56px; padding: 4px; border-radius: 14px; background: #fff; }
.tsa-logo-word { font-weight: 900; font-size: 1.32rem; letter-spacing: -.01em; line-height: 1; white-space: nowrap; color: var(--t-ink); }
.tsa-logo-word b { color: var(--t-brand-ink); font-weight: 900; }
.tsa-logo-word i { font-style: normal; color: var(--t-brand-ink); background: linear-gradient(transparent 62%, var(--t-marker) 62%); padding-inline: .08em; }

.tsa-nav { margin-inline-start: auto; }
.tsa-nav ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: .25rem; }
.tsa-nav li { margin: 0; }
.tsa-nav a, .tsa-nav .nav-header, .tsa-nav .mod-menu__separator {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  min-height: 44px;
  padding: .35rem .9rem;
  border-radius: 12px;
  color: var(--t-ink);
  font-weight: 700;
  text-decoration: none;
  transition: background-color .15s var(--t-ease), color .15s var(--t-ease);
}
.tsa-nav a:hover { background: var(--t-brand-soft); color: var(--t-brand-ink); }
.tsa-nav :is(.current, .active) > a, .tsa-nav a[aria-current="page"] { background: var(--t-brand-soft); color: var(--t-brand-ink); box-shadow: inset 0 -3px 0 var(--t-gold); }
.tsa-nav ul ul { display: none; }
.tsa-search input { min-height: 40px; }

.tsa-account { margin-inline-start: .25rem; flex: none; }
.tsa-header-in:not(:has(.tsa-nav)) .tsa-account { margin-inline-start: auto; }

.tsa-burger { display: none; }

@media (max-width: 899px) {
  .tsa-burger {
    display: inline-grid;
    place-items: center;
    width: 46px;
    height: 46px;
    margin-inline-start: auto;
    border: 1px solid var(--t-line-strong);
    border-radius: 12px;
    background: var(--t-surface);
    color: var(--t-ink);
    cursor: pointer;
  }
  .tsa-burger-bars { display: grid; gap: 5px; }
  .tsa-burger-bars i { display: block; width: 20px; height: 2.5px; border-radius: 2px; background: currentColor; transition: transform .2s var(--t-ease), opacity .2s; }
  .tsa-header.is-open .tsa-burger-bars i:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
  .tsa-header.is-open .tsa-burger-bars i:nth-child(2) { opacity: 0; }
  .tsa-header.is-open .tsa-burger-bars i:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }
  .tsa-header-in { flex-wrap: wrap; }
  .tsa-account { margin-inline-start: 0; order: 2; }
  .tsa-burger { order: 1; }
  .tsa-nav { order: 3; flex-basis: 100%; margin: 0; }
  .tsa-js .tsa-nav { display: none; }
  .tsa-js .tsa-header.is-open .tsa-nav { display: block; padding-bottom: .8rem; }
  .tsa-nav ul { flex-direction: column; gap: .15rem; }
  .tsa-nav a { width: 100%; }
  .tsa-me-name { display: none; }
  .tsa-login span { display: none; }
  .tsa-login { padding-inline: .75rem; }
}
@media (max-width: 380px) {
  .tsa-logo-word { font-size: 1.12rem; }
  .tsa-logo-mark { height: 40px; }
}

/* account */
.tsa-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .45rem;
  min-height: 46px;
  padding: .45rem 1.15rem;
  border: 0;
  border-radius: 14px;
  background: var(--t-brand);
  color: #fff;
  font: inherit;
  font-weight: 900;
  text-decoration: none;
  cursor: pointer;
  box-shadow: 0 6px 16px color-mix(in oklab, var(--t-brand) 28%, transparent);
  transition: translate .15s var(--t-ease), box-shadow .15s var(--t-ease), background-color .15s;
}
.tsa-btn:hover { translate: 0 -1px; background: color-mix(in oklab, var(--t-brand) 88%, var(--t-navy)); color: #fff; text-decoration: none; }
.tsa-btn.is-gold { background: var(--t-gold); color: var(--t-gold-ink); box-shadow: 0 6px 18px color-mix(in oklab, var(--t-gold) 45%, transparent); }
.tsa-btn.is-gold:hover { background: color-mix(in oklab, var(--t-gold) 88%, var(--t-gold-ink)); color: var(--t-gold-ink); }
.tsa-btn.is-ghost { background: var(--t-brand-soft); color: var(--t-brand-ink); box-shadow: none; }
.tsa-btn svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }
:root[data-t-scheme="dark"] .tsa-btn:not(.is-gold):not(.is-ghost) { color: var(--t-navy); }

.tsa-me { position: relative; }
.tsa-me summary { display: inline-flex; align-items: center; gap: .5rem; min-height: 46px; padding: .25rem .5rem .25rem .9rem; border-radius: 999px; border: 1px solid var(--t-line-strong); background: var(--t-surface); cursor: pointer; list-style: none; font-weight: 700; }
.tsa-me summary::-webkit-details-marker { display: none; }
.tsa-avatar { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; background: var(--t-gold); color: var(--t-gold-ink); font-weight: 900; }
.tsa-me-menu {
  position: absolute;
  inset-inline-end: 0;
  top: calc(100% + 8px);
  z-index: 60;
  display: grid;
  min-width: 200px;
  padding: .4rem;
  border-radius: var(--t-r);
  background: var(--t-surface);
  border: 1px solid var(--t-line);
  box-shadow: var(--t-shadow);
}
.tsa-me-menu a, .tsa-me-menu button { display: block; width: 100%; padding: .6rem .8rem; border-radius: 10px; border: 0; background: none; color: var(--t-ink); font: inherit; font-weight: 700; text-align: start; text-decoration: none; cursor: pointer; }
.tsa-me-menu a:hover, .tsa-me-menu button:hover { background: var(--t-brand-soft); color: var(--t-brand-ink); }
.tsa-me-menu form { margin: 0; border-top: 1px solid var(--t-line); padding-top: .3rem; margin-top: .3rem; }
@media (prefers-reduced-motion: no-preference) {
  .tsa-me[open] .tsa-me-menu { animation: tsa-pop .18s var(--t-ease); }
}
@keyframes tsa-pop { from { opacity: 0; translate: 0 -6px; } }

/* ------------------------------------------------------------------ main */

.tsa-banner { width: 100%; }
.tsa-main { flex: 1; padding-block: clamp(1rem, .6rem + 2vw, 2.2rem) clamp(2rem, 1rem + 3vw, 3.5rem); outline: none; }
.tsa-stack { display: grid; gap: clamp(1rem, .7rem + 1vw, 1.6rem); }
.tsa-stack > * { min-width: 0; }
body.is-home .tsa-main { padding-top: 0; }

/* a white sheet of the notebook: articles, account pages, modules */
.tsa-sheet {
  position: relative;
  padding: clamp(1.1rem, .8rem + 1.6vw, 2.2rem) clamp(1.1rem, .7rem + 2vw, 2.6rem);
  padding-inline-start: calc(clamp(1.1rem, .7rem + 2vw, 2.6rem) + 14px);
  border-radius: var(--t-r-l);
  background: var(--t-surface);
  border: 1px solid var(--t-line);
  box-shadow: var(--t-shadow);
}
.tsa-sheet::before { /* the red margin */
  content: "";
  position: absolute;
  inset-block: 0;
  inset-inline-start: clamp(14px, 1.6vw, 22px);
  width: 2px;
  background: color-mix(in oklab, var(--t-red) 55%, var(--t-surface));
}
.tsa-component.tsa-sheet > :first-child { margin-top: 0; }
.tsa-component.tsa-sheet h1 { display: inline; background: linear-gradient(transparent 62%, var(--t-marker) 62%); box-decoration-break: clone; -webkit-box-decoration-break: clone; }
.tsa-component.tsa-sheet h1 + * { margin-top: 1rem; }
.tsa-component.tsa-sheet .page-header { margin-bottom: 1rem; }
.tsa-module-title { margin-top: 0; font-size: 1.25rem; }
.tsa-module.tsa-sheet > :last-child { margin-bottom: 0; }
.tsa-breadcrumbs ol { display: flex; flex-wrap: wrap; gap: .3rem .6rem; list-style: none; margin: 0; padding: 0; font-size: .92rem; color: var(--t-ink-2); }

/* Joomla core content without Bootstrap: just enough */
.tsa-sheet img { border-radius: 12px; }
.tsa-sheet :is(ul, ol):not([class]) { padding-inline-start: 1.4rem; }
.tsa-sheet li::marker { color: var(--t-brand-ink); font-weight: 900; }
.article-info, .tsa-sheet dl.article-info { display: flex; flex-wrap: wrap; gap: .3rem 1rem; margin: 0 0 1rem; color: var(--t-ink-2); font-size: .9rem; }
.article-info dt { display: none; }
.article-info dd { margin: 0; }
.blog-items, .blog-featured .items-leading { display: grid; gap: 1.2rem; }
.blog-item, .items-leading > div { padding-bottom: 1.2rem; border-bottom: 2px dashed var(--t-line); }
.readmore a, a.btn, .btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .4rem; min-height: 44px; padding: .4rem 1.1rem;
  border-radius: 12px; border: 0; background: var(--t-brand); color: #fff; font: inherit; font-weight: 700; text-decoration: none; cursor: pointer;
}
.btn-secondary, .btn-light, .btn-outline-primary, .btn-outline-secondary { background: var(--t-brand-soft); color: var(--t-brand-ink); }
.btn-danger { background: var(--t-ko); }
.pagination { display: flex; flex-wrap: wrap; gap: .3rem; list-style: none; padding: 0; }
.pagination a, .pagination span { display: inline-grid; place-items: center; min-width: 40px; min-height: 40px; border-radius: 10px; background: var(--t-brand-soft); text-decoration: none; font-weight: 700; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }

/* forms (core layouts) */
label, .form-label { font-weight: 700; }
input:not([type="checkbox"]):not([type="radio"]):not([type="submit"]):not([type="button"]):not([type="hidden"]), select, textarea, .form-control, .form-select {
  display: block;
  width: 100%;
  min-height: 48px;
  padding: .55rem .85rem;
  border: 1.5px solid var(--t-line-strong);
  border-radius: 12px;
  background: var(--t-surface);
  color: var(--t-ink);
  font: inherit;
  transition: border-color .15s, box-shadow .15s;
}
input:focus, select:focus, textarea:focus, .form-control:focus { outline: none; border-color: var(--t-brand); box-shadow: 0 0 0 4px color-mix(in oklab, var(--t-brand) 18%, transparent); }
.control-group, .mb-3 { margin-bottom: 1rem; }
.control-label { margin-bottom: .3rem; }
.form-text, .form-control-feedback, .invalid-feedback { font-size: .88rem; color: var(--t-ink-2); }
.invalid, input.invalid { border-color: var(--t-ko) !important; }
.star, .required-marker { color: var(--t-ko); }

/* system messages (joomla-alert) */
#system-message-container:empty { display: none; }
joomla-alert { display: block; margin: 0 0 .8rem; padding: .85rem 1.1rem; border-radius: var(--t-r); border: 1px solid var(--t-line-strong); background: var(--t-surface); box-shadow: var(--t-shadow); }
joomla-alert[type="success"] { border-color: color-mix(in oklab, var(--t-ok) 50%, var(--t-surface)); background: color-mix(in oklab, var(--t-ok) 9%, var(--t-surface)); }
joomla-alert[type="danger"], joomla-alert[type="error"] { border-color: color-mix(in oklab, var(--t-ko) 50%, var(--t-surface)); background: color-mix(in oklab, var(--t-ko) 8%, var(--t-surface)); }
joomla-alert[type="warning"] { border-color: color-mix(in oklab, var(--t-gold) 70%, var(--t-surface)); background: var(--t-gold-soft); }
joomla-alert .alert-heading { font-weight: 900; }
joomla-alert .joomla-alert--close { float: inline-end; border: 0; background: none; font-size: 1.4rem; line-height: 1; cursor: pointer; color: inherit; }

/* ------------------------------------------------------------------ account pages (com_users overrides) */

.tsa-auth { display: grid; place-items: center; padding-block: clamp(.5rem, 2vw, 2rem); }
.tsa-auth-card { width: min(100%, 520px); }
.tsa-auth-head { display: flex; align-items: center; gap: 1rem; margin-bottom: 1.2rem; }
.tsa-auth-pair { display: flex; flex: none; }
.tsa-auth-pair img { width: 54px; height: 54px; border-radius: 50%; background: var(--t-brand-soft); border: 3px solid var(--t-surface); box-shadow: 0 2px 8px color-mix(in oklab, var(--t-navy) 14%, transparent); object-fit: cover; }
.tsa-auth-pair img + img { margin-inline-start: -14px; }
.tsa-auth-head h1 { margin: 0; font-size: clamp(1.4rem, 1.2rem + 1vw, 1.85rem); }
.tsa-auth-head p { margin: .2rem 0 0; color: var(--t-ink-2); }
.tsa-auth form { display: grid; gap: .9rem; margin: 0; }
.tsa-field { display: grid; gap: .3rem; }
.tsa-field small { color: var(--t-ink-2); font-size: .86rem; line-height: 1.5; }
.tsa-field label b, .tsa-required b { color: var(--t-ko); }
.tsa-required { margin: 0; font-size: .88rem; color: var(--t-ink-2); }
.tsa-pass { position: relative; }
.tsa-pass input { padding-inline-end: 3.2rem; }
.tsa-eye { position: absolute; inset-inline-end: 4px; top: 50%; translate: 0 -50%; width: 42px; height: 42px; border: 0; border-radius: 10px; background: none; color: var(--t-ink-2); cursor: pointer; display: grid; place-items: center; }
.tsa-eye:hover { background: var(--t-brand-soft); }
.tsa-eye svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 2; }
.tsa-check { display: flex; align-items: center; gap: .55rem; font-weight: 400; }
.tsa-check input { width: 20px; height: 20px; accent-color: var(--t-brand); }
.tsa-auth .tsa-btn[type="submit"], .tsa-auth .tsa-btn.is-block { width: 100%; min-height: 52px; font-size: 1.08rem; }
.tsa-socials { display: grid; gap: .6rem; }
.tsa-soc { display: flex; align-items: center; justify-content: center; gap: .65rem; min-height: 52px; border-radius: 14px; border: 1.5px solid var(--t-line-strong); background: var(--t-surface); color: var(--t-ink); font-weight: 900; text-decoration: none; transition: border-color .15s, translate .15s; }
.tsa-soc:hover { border-color: var(--t-brand); translate: 0 -1px; text-decoration: none; color: var(--t-ink); }
.tsa-soc svg { width: 22px; height: 22px; }
.tsa-soc.is-facebook { background: #1877f2; border-color: #1877f2; color: #fff; }
.tsa-soc.is-facebook:hover { color: #fff; }
.tsa-or { display: flex; align-items: center; gap: .8rem; margin: 1rem 0; color: var(--t-ink-2); font-size: .9rem; }
.tsa-or::before, .tsa-or::after { content: ""; flex: 1; border-top: 2px dashed var(--t-line-strong); }
.tsa-auth-foot { display: flex; flex-wrap: wrap; justify-content: center; gap: .4rem 1.2rem; margin-top: 1.3rem; padding-top: 1rem; border-top: 2px dashed var(--t-line); font-size: .95rem; }
.tsa-auth-foot a { font-weight: 700; }
.tsa-auth-foot a.is-main { color: var(--t-ink); background: linear-gradient(transparent 60%, var(--t-marker) 60%); text-decoration: none; }
.tsa-steps { margin: 0 0 1rem; padding-inline-start: 1.4rem; display: grid; gap: .4rem; }

/* ------------------------------------------------------------------ footer: the cover of the notebook */

.tsa-footer {
  margin-top: auto;
  color: oklch(0.93 0.02 255);
  background:
    radial-gradient(120% 140% at 100% 0%, color-mix(in oklab, var(--t-brand) 40%, transparent), transparent 55%),
    var(--t-navy);
}
.tsa-footer-in { display: grid; gap: 1.2rem; padding-block: 2rem 1.4rem; }
@media (min-width: 760px) { .tsa-footer-in { grid-template-columns: 1fr auto; align-items: start; } .tsa-footer-meta { grid-column: 1 / -1; } }
.tsa-footer .tsa-logo-word, .tsa-footer .tsa-logo-word b, .tsa-footer .tsa-logo-word i { color: #fff; }
.tsa-footer .tsa-logo-word i { background: linear-gradient(transparent 62%, color-mix(in oklab, var(--t-gold) 70%, transparent) 62%); }
.tsa-tagline { margin: .6rem 0 0; font-weight: 700; color: var(--t-gold); }
.tsa-footer a { color: #fff; }
.tsa-footer ul { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: .3rem 1.2rem; }
.tsa-footer-meta { display: flex; flex-wrap: wrap; justify-content: space-between; gap: .5rem 1rem; margin: 0; padding-top: 1rem; border-top: 1px solid color-mix(in oklab, white 18%, transparent); font-size: .9rem; color: oklch(0.82 0.03 255); }

/* ------------------------------------------------------------------ error / offline pages */

.tsa-error { display: grid; place-items: center; text-align: center; padding-block: clamp(1rem, 5vw, 4rem); }
.tsa-error-code { display: flex; justify-content: center; align-items: center; gap: .05em; margin: 0 0 .6rem; font-size: clamp(4rem, 3rem + 6vw, 7.5rem); font-weight: 900; line-height: 1; color: var(--t-brand-ink); letter-spacing: -.02em; }
.tsa-error-code span { display: grid; place-items: center; background: var(--t-gold); color: var(--t-gold-ink); border-radius: 50%; width: 1.05em; height: 1.05em; padding-top: .08em; }
.tsa-error .tsa-sheet { width: min(100%, 620px); }
.tsa-error-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: .6rem; margin-top: 1rem; }

/* ------------------------------------------------------------------ the student pages sit on the paper, not on a sheet */

body.is-lms .tsa-main { padding-top: clamp(.8rem, .5rem + 1.2vw, 1.6rem); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
}
@media print {
  .tsa-header, .tsa-footer, .tsa-skip { display: none !important; }
  body { background: #fff; }
  .tsa-sheet { box-shadow: none; border: 0; }
}
@media (forced-colors: active) {
  .tsa-btn, .tsa-soc, .tsa-me summary { border: 1px solid ButtonText; }
  .tsa-sheet::before { background: CanvasText; }
}

/* the account pages bring their own sheet: no sheet around the sheet */
.tsa-component.tsa-sheet:has(> .tsa-auth) { padding: 0; border: 0; background: none; box-shadow: none; }
.tsa-component.tsa-sheet:has(> .tsa-auth)::before { display: none; }
@media (max-width: 480px) {
  .tsa-auth-head { flex-direction: column; align-items: flex-start; gap: .6rem; }
}
/* Joomla's « show password » button (its icon font is not loaded) */
.input-password-toggle { display: inline-grid; place-items: center; min-width: 44px; min-height: 44px; margin-top: .3rem; border: 1.5px solid var(--t-line-strong); border-radius: 10px; background: var(--t-surface); cursor: pointer; }
.input-password-toggle [class^="icon-"], .input-password-toggle .icon-fw { display: none; }
.input-password-toggle::before { content: "👁"; font-size: 1.1rem; }
.input-group { display: flex; gap: .4rem; align-items: stretch; }
.input-group > input { flex: 1; }
.input-group > .input-password-toggle { margin-top: 0; }
meter, .password-strength progress { width: 100%; height: 8px; }
:root[data-t-scheme="dark"] .tsa-header .tsa-logo-mark { padding: 3px; border-radius: 12px; background: #fff; }
@media (prefers-color-scheme: dark) { :root[data-t-scheme="auto"] .tsa-header .tsa-logo-mark { padding: 3px; border-radius: 12px; background: #fff; } }