/* GLF Teacher Training eligibility checker.
 *
 * Values here come from design_handoff_eligibility_checker/README.md, which is
 * high fidelity: colours, type, spacing, radii, shadows and motion timings are
 * final. The SVG geometry that pairs with this file lives in flow/progress.py
 * and templates/flow/_progress_figure.html.
 */

:root {
    color-scheme: light;

    /* Surfaces */
    --bg: #f4efe6;
    --panel: #fffdf8;
    --panel-strong: #fff;

    /* Borders, light to dark */
    --border-soft: #ece3d4;
    --border-trail: #e6dccb;
    --border: #e0d4c1;
    --border-strong: #ded2be;

    /* Ink */
    --ink: #211e19;
    --body: #4b453c;
    --muted: #6b6255;
    --muted-alt: #655d51;
    --past: #5b5347;
    /* 4.55:1 on the darkest page-gradient stop (#f2ece1). The stage rows are
     * transparent, so future labels sit on the page, not on a panel -- the
     * handoff's #7d7466 only reaches 3.92:1 there. Still clearly lighter
     * than --past and --muted, so the three states stay distinguishable. */
    --future: #726a5a;

    /* Brand */
    --green: #1f5f5b;
    --green-deep: #123f3c;
    --green-link: #144643;
    --green-mid: #3f7d63;
    --gold: #c08a3e;

    /* Progress figure */
    --track: #e6dccb;
    --tick-unreached: #cfc2ad;
    --dot-future: #d9ccb8;

    /* Type */
    --serif: "Newsreader", Georgia, "Times New Roman", serif;
    --sans: "IBM Plex Sans", "Segoe UI", system-ui, sans-serif;

    /* Motion */
    --ease-arc: cubic-bezier(.34, 1.56, .64, 1);
    --ease-swoop: cubic-bezier(.22, 1.3, .36, 1);
    --ease-option: cubic-bezier(.34, 1.5, .64, 1);
}

* {
    box-sizing: border-box;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
    border: 0;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--ink);
    font-family: var(--serif);
}

.page {
    min-height: 100vh;
    padding: 34px 26px 60px;
    background:
        radial-gradient(1200px 600px at 12% -10%, rgba(31, 95, 91, .13), transparent 60%),
        radial-gradient(900px 520px at 108% 112%, rgba(180, 133, 67, .16), transparent 60%),
        linear-gradient(180deg, #f8f4ed 0%, #f2ece1 100%);
}

.shell {
    max-width: 1180px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 26px;
}

/* --- Header ------------------------------------------------------------- */

.masthead {
    text-align: center;
}

/* Two eyebrows, two specs. The masthead's is 11px/.22em; the card's
 * QUESTION/INFORMATION label is 10px/.2em. They looked alike enough to share a
 * class and they are not the same thing. */
.eyebrow {
    margin: 0;
    font-family: var(--sans);
    font-weight: 600;
    text-transform: uppercase;
    color: var(--muted-alt);
}

.masthead .eyebrow {
    font-size: 11px;
    letter-spacing: .22em;
}

.card-kind {
    font-size: 10px;
    letter-spacing: .2em;
}

.masthead-title {
    margin: 10px 0 0;
    font-family: var(--serif);
    font-size: clamp(2rem, 4.4vw, 3.1rem);
    font-weight: 500;
    line-height: 1.02;
    letter-spacing: -.015em;
    color: var(--green-deep);
    text-wrap: balance;
}

.masthead-sub {
    margin: 14px auto 0;
    max-width: 46ch;
    font-size: 1.02rem;
    line-height: 1.5;
    color: var(--muted);
}

/* --- Two-column body ---------------------------------------------------- */

.columns {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
    align-items: flex-start;
}

/* The rail wraps above the card once the two flex bases plus the gap
 * (250 + 520 + 24 = 794px) no longer fit inside the page padding (2 x 26px)
 * -- so at roughly 846px of viewport.
 *
 * Stickiness is applied ONLY above that width, and deliberately not by
 * switching it off in the 640px query. In a wrapped flex container the rail's
 * sticky containing block is the whole of .columns, not its own line, so a
 * sticky rail that has wrapped pins itself over the top of the question card
 * for the card's entire height. On the longest screen in the flow
 * (employment_routes_2, ~5,300 characters) that hides the copy the visitor is
 * trying to read. The two thresholds must therefore agree.
 */
.rail {
    flex: 1 1 250px;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

@media (min-width: 850px) {
    .rail {
        max-width: 320px;
        position: sticky;
        top: 24px;
    }
}

.main {
    flex: 1 1 520px;
    min-width: 0;
}

/* --- Component 1: progress figure --------------------------------------- */

.figure-card {
    background: linear-gradient(180deg, var(--panel) 0%, var(--panel-strong) 100%);
    border: 1px solid var(--border);
    border-radius: 22px;
    box-shadow: 0 14px 34px rgba(49, 37, 17, .09);
    padding: 12px 14px 14px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

/* The viewBox is sized so the head glow never reaches the edge. Do not add
 * overflow: visible here -- the pulse would escape the card. */
.ring {
    width: 100%;
    max-height: 190px;
    height: auto;
    display: block;
}

/* Applied for one frame by the script in flow.html while it snaps the figure
 * back to the previous node's values. Without it, that snap would animate too
 * and the ring would visibly run backwards before running forwards. */
.ring-instant .ring-progress,
.ring-instant .ring-head,
.ring-instant .ring-tick,
.ring-instant .ring-head-core,
.ring-instant .ring-head-glow {
    transition: none;
}

.ring-track {
    fill: none;
    stroke: var(--track);
    stroke-width: 10;
    stroke-linecap: round;
}

.ring-progress {
    fill: none;
    stroke: url(#arcGrad);
    stroke-width: 10;
    stroke-linecap: round;
    transition: stroke-dashoffset 980ms var(--ease-arc);
}

.ring-tick {
    fill: var(--tick-unreached);
    transition: fill 600ms ease;
}

.ring-tick.is-reached {
    fill: var(--panel);
}

.ring-head {
    transition: transform 980ms var(--ease-arc);
}

/* An unsupported colour in an SVG fill renders black rather than falling back,
 * so the hex ramp is the default and oklch is layered on where it is
 * understood. Both values are set inline on the <svg> by the template. */
.ring-head-core,
.ring-head-glow {
    fill: var(--head-hex);
    transition: fill 600ms ease;
}

@supports (color: oklch(0.5 0.1 180)) {
    .ring-head-core,
    .ring-head-glow {
        fill: var(--head-oklch);
    }
}

.ring-head-ring {
    fill: var(--panel);
}

.ring-head-glow {
    opacity: .26;
    /* fill-box is required. Without it the scale resolves against the SVG
     * viewBox and the glow flies out of the card. */
    transform-box: fill-box;
    transform-origin: center;
    animation: headPulse 2.4s ease-out infinite;
}

.ring-stage-number {
    font-family: var(--serif);
    font-size: 40px;
    font-weight: 400;
    fill: var(--green-deep);
}

.figure-meta {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 10px;
    padding: 0 4px;
}

.figure-stage {
    font-family: var(--sans);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--muted);
}

.figure-pct {
    font-family: var(--sans);
    font-size: 12px;
    font-weight: 500;
    color: var(--muted-alt);
}

/* --- Component 2: stage list -------------------------------------------- */

.stage-list {
    list-style: none;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 4px 6px;
}

.stage-row {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 9px 8px;
    border-radius: 12px;
}

.stage-row.is-current {
    background: rgba(255, 253, 248, .9);
}

.stage-dot {
    flex: 0 0 auto;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--dot-future);
}

.stage-row.is-past .stage-dot {
    background: var(--gold);
}

.stage-row.is-current .stage-dot {
    background: var(--green);
    box-shadow: 0 0 0 4px rgba(31, 95, 91, .16);
}

.stage-label {
    font-family: var(--sans);
    font-size: 13px;
    font-weight: 500;
    color: var(--future);
}

.stage-row.is-past .stage-label {
    color: var(--past);
}

.stage-row.is-current .stage-label {
    color: var(--green-deep);
}

/* --- Component 3: answer trail ------------------------------------------ */

.trail {
    padding: 16px 18px;
    border: 1px solid var(--border-trail);
    border-radius: 20px;
    background: rgba(255, 253, 248, .7);
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.trail-heading {
    margin: 0;
    font-family: var(--sans);
    font-size: 10px;
    font-weight: 600;
    letter-spacing: .2em;
    text-transform: uppercase;
    color: var(--muted-alt);
}

.trail-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.trail-question {
    font-size: .84rem;
    line-height: 1.3;
    color: var(--muted-alt);
}

.trail-answer {
    font-size: .98rem;
    line-height: 1.35;
    color: var(--green-deep);
}

/* --- Component 4: question card ----------------------------------------- */

.card {
    background: linear-gradient(180deg, var(--panel) 0%, var(--panel-strong) 62%);
    border: 1px solid var(--border);
    border-radius: 28px;
    box-shadow: 0 26px 60px rgba(49, 37, 17, .12);
    overflow: hidden;
}

.card-strip {
    height: 6px;
    background: linear-gradient(90deg, var(--green), var(--gold));
}

.card-inner {
    padding: 30px 32px 26px;
}

/* The whole content block enters on every node change. The page is
 * server-rendered, so this simply runs on load -- no JS. */
.card-content {
    animation: swoop 520ms var(--ease-swoop) both;
}

.card-head {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    justify-content: space-between;
}

.card-head-text {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.card-title {
    margin: 0;
    font-family: var(--serif);
    font-size: clamp(1.5rem, 2.8vw, 2.1rem);
    font-weight: 500;
    line-height: 1.1;
    letter-spacing: -.01em;
    color: var(--ink);
    text-wrap: pretty;
}

.card-logo {
    flex: 0 0 auto;
    height: 52px;
    width: auto;
    border-radius: 8px;
}

/* --- Parsed body text ---------------------------------------------------- */

.node-body {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin: 22px 0 26px;
    max-width: 68ch;
}

.node-text {
    margin: 0;
    font-size: 1.06rem;
    line-height: 1.62;
    color: var(--body);
    overflow-wrap: anywhere;
    text-wrap: pretty;
}

.node-subhead {
    margin: 8px 0 0;
    font-size: 1.16rem;
    font-weight: 600;
    line-height: 1.4;
    color: var(--green-deep);
}

/* Not in the handoff, which defines no numbered-list treatment. Added because
 * on real content the omission inverts the hierarchy: in overseas_4_not_enough
 * and domestic_2_no_degree the four "N)" points ARE the decision the candidate
 * has to make, and they were rendering as flat body paragraphs with the digit
 * buried in the text -- while a list of optional university-guide links two
 * paragraphs below got clean gold markers. A hanging marker is the least
 * invention that restores the right order. */
/* An inline marker rather than a flex row with a hanging indent. Each of these
 * points is completed by its own continuation lines -- an email address, a URL,
 * an extra sentence -- which the parser emits as separate body blocks. A
 * hanging indent would leave those continuations starting to the LEFT of the
 * point they belong to, which reads worse than no indent at all. */
.node-numbered {
    margin: 0;
    font-size: 1.06rem;
    line-height: 1.62;
    color: var(--body);
    overflow-wrap: anywhere;
    text-wrap: pretty;
}

.node-number {
    font-family: var(--sans);
    font-size: .95rem;
    font-weight: 600;
    color: var(--gold);
    font-variant-numeric: tabular-nums;
    margin-right: 6px;
}

/* The session-expiry note. Informational, not an error -- nothing the visitor
 * typed is lost, because they never type anything. */
.notice {
    margin: 0 0 22px;
    padding: 12px 16px;
    border: 1px solid var(--border-trail);
    border-left: 3px solid var(--gold);
    border-radius: 12px;
    background: rgba(255, 253, 248, .9);
    font-size: .98rem;
    line-height: 1.5;
    color: var(--muted-alt);
}

.node-bullets {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.node-bullet {
    display: flex;
    gap: 10px;
    align-items: baseline;
}

.node-bullet::before {
    content: "\25CF";
    flex: 0 0 auto;
    font-size: 1.1rem;
    line-height: 1.5;
    color: var(--gold);
}

.node-body a {
    color: var(--green-link);
    font-weight: 500;
    text-decoration: underline;
    text-decoration-color: rgba(20, 70, 67, .35);
    text-underline-offset: 3px;
    overflow-wrap: anywhere;
}

.node-body a:hover,
.node-body a:focus-visible {
    text-decoration-color: var(--green-link);
}

/* --- Options ------------------------------------------------------------- */

.options {
    display: grid;
    gap: 10px;
}

.option-form {
    margin: 0;
}

.option-button {
    display: flex;
    align-items: center;
    gap: 14px;
    width: 100%;
    text-align: left;
    font-family: var(--serif);
    font-size: 1.05rem;
    color: var(--ink);
    background: var(--panel-strong);
    border: 1px solid var(--border-strong);
    border-radius: 16px;
    padding: 15px 18px;
    cursor: pointer;
    transition:
        transform 180ms var(--ease-option),
        border-color 180ms ease,
        box-shadow 180ms ease,
        background 180ms ease;
}

.option-button:hover,
.option-button:focus-visible {
    transform: translateY(-2px);
    border-color: var(--green);
    background: var(--panel);
    box-shadow: 0 14px 28px rgba(31, 95, 91, .14);
}

/* Not folded into the rule above with an `outline: none` that a later rule
 * undoes -- that works only while the file stays in this order, and one
 * reorder would silently remove the sole visible focus indicator from the most
 * important control on the page. */
.option-button:focus-visible {
    outline: 2px solid var(--green);
    outline-offset: 2px;
}

.option-button:active {
    transform: translateY(1px) scale(.995);
}

.option-key {
    flex: 0 0 auto;
    display: grid;
    place-items: center;
    width: 26px;
    height: 26px;
    border: 1px solid var(--border-strong);
    border-radius: 50%;
    font-family: var(--sans);
    font-size: 11px;
    font-weight: 600;
    color: var(--muted);
}

.option-label {
    flex: 1 1 auto;
    line-height: 1.4;
    text-wrap: pretty;
}

.option-arrow {
    flex: 0 0 auto;
    color: var(--gold);
    font-size: 1.05rem;
}

/* --- Card footer --------------------------------------------------------- */

.card-footer {
    margin-top: 28px;
    padding-top: 18px;
    border-top: 1px solid var(--border-soft);
    display: flex;
    flex-wrap: wrap;
    gap: 14px 22px;
    align-items: flex-end;
    justify-content: space-between;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 6px;
    min-width: 0;
}

.footer-label {
    font-size: .95rem;
    color: var(--muted);
    overflow-wrap: anywhere;
}

.footer-link {
    color: var(--green-link);
    font-weight: 600;
    text-decoration: none;
}

.footer-link:hover,
.footer-link:focus-visible {
    text-decoration: underline;
}

.footer-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-left: auto;
}

.back-form {
    margin: 0;
}

/* The design's Back pill is deliberately chrome, not content: eight nodes
 * already carry their own "Back" option button, so this one is a pill in the
 * footer rather than another full-width option row. */
.back-button {
    font-family: var(--sans);
    font-size: 13px;
    font-weight: 500;
    color: var(--muted);
    background: transparent;
    border: 1px solid var(--border-strong);
    border-radius: 999px;
    padding: 8px 16px;
    cursor: pointer;
    transition: border-color 180ms ease, color 180ms ease;
}

.back-button:hover,
.back-button:focus-visible {
    border-color: var(--green);
    color: var(--green-link);
}

.reset-form {
    margin: 0;
}

/* A <button> now rather than an <a> -- see the note in flow.html. Styled to
 * read as the text link it was, so the change is invisible to the visitor. */
.reset-link {
    font-family: var(--sans);
    font-size: 13px;
    font-weight: 500;
    color: var(--green-link);
    background: none;
    border: 0;
    text-decoration: underline;
    text-underline-offset: 3px;
    padding: 8px 12px;
    cursor: pointer;
}

.reset-link:hover,
.reset-link:focus-visible {
    color: var(--green-deep);
}

/* --- Motion -------------------------------------------------------------- */

@keyframes swoop {
    from {
        opacity: 0;
        transform: translateY(16px);
    }

    to {
        opacity: 1;
        transform: none;
    }
}

@keyframes headPulse {
    0% {
        transform: scale(1);
        opacity: .5;
    }

    70%,
    100% {
        transform: scale(2.6);
        opacity: 0;
    }
}

@media (prefers-reduced-motion: reduce) {

    .card-content {
        animation: none;
    }

    .ring-head-glow {
        animation: none;
        opacity: .26;
    }

    .ring-progress,
    .ring-head,
    .ring-tick,
    .ring-head-core,
    .ring-head-glow,
    .option-button,
    .back-button {
        transition: none;
    }

    .option-button:hover,
    .option-button:focus-visible,
    .option-button:active {
        transform: none;
    }
}

/* --- Narrow viewports ---------------------------------------------------- */

@media (max-width: 640px) {

    .page {
        padding: 22px 16px 16px;
    }

    .card-inner {
        padding: 22px;
    }

    .card-logo {
        height: 44px;
    }

    .node-text {
        font-size: 1rem;
    }

    /* .rail needs nothing here: sticky is only ever applied above 850px. */
    .card-footer {
        align-items: flex-start;
    }

    .footer-actions {
        margin-left: 0;
    }
}