/* ==========================================================================
   ExamPortal — public landing page
   Same ink-and-indigo language as the sign-in screens; the CBT question
   palette carries the hero instead of a stock illustration.
   ========================================================================== */

:root {
    --ink:        #0E1626;
    --paper:      #FFFFFF;
    --paper-sunk: #F3F5FB;
    --line:       #DFE4F0;
    --text:       #162034;
    --text-muted: #66708A;
    --indigo:     #2F49D1;
    --indigo-deep:#22349B;
    --answered:   #12A150;
    --review:     #F5A524;
    --unseen:     #C4CBDD;

    --font-display: "Sora", system-ui, sans-serif;
    --font-body:    "IBM Plex Sans", system-ui, -apple-system, sans-serif;
    --font-mono:    "IBM Plex Mono", ui-monospace, monospace;
}

[data-theme="dark"] {
    --paper: #111A2B; --paper-sunk: #0B1220; --line: #26324B;
    --text: #E5EAF6; --text-muted: #939DB8; --indigo: #7A8CFF; --indigo-deep: #5C6FEA;
    --unseen: #3A4763;
}

* { box-sizing: border-box; }

body.site {
    margin: 0;
    font-family: var(--font-body);
    font-size: 15.5px;
    line-height: 1.6;
    color: var(--text);
    background: var(--paper);
    -webkit-font-smoothing: antialiased;
}

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

.site-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    max-width: 1120px;
    margin: 0 auto;
    padding: 20px 24px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 18px;
    letter-spacing: -.02em;
    color: var(--text);
    text-decoration: none;
}

.brand span {
    display: grid;
    place-items: center;
    width: 29px;
    height: 29px;
    border-radius: 8px;
    background: var(--indigo);
    color: #fff;
    font-family: var(--font-mono);
    font-size: 13px;
    font-weight: 600;
}

.site-head nav { display: flex; align-items: center; gap: 8px; }

.nav-link {
    padding: 9px 14px;
    font-size: 14.5px;
    color: var(--text);
    text-decoration: none;
    border-radius: 6px;
}

.nav-link:hover { background: var(--paper-sunk); }

.nav-cta {
    padding: 9px 16px;
    font-size: 14.5px;
    font-weight: 500;
    color: #fff;
    background: var(--indigo);
    border-radius: 6px;
    text-decoration: none;
}

.nav-cta:hover { background: var(--indigo-deep); }

/* ------------------------------------------------------------------- hero */

.hero {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    align-items: center;
    gap: 56px;
    max-width: 1120px;
    margin: 0 auto;
    padding: 48px 24px 72px;
}

.eyebrow {
    margin: 0 0 18px;
    font-family: var(--font-mono);
    font-size: 11.5px;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.hero h1 {
    margin: 0 0 18px;
    font-family: var(--font-display);
    font-size: clamp(32px, 4.4vw, 52px);
    font-weight: 600;
    line-height: 1.08;
    letter-spacing: -.03em;
}

.hero .lede {
    margin: 0 0 28px;
    max-width: 46ch;
    font-size: 17px;
    color: var(--text-muted);
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 16px; }

.cta, .cta-quiet {
    display: inline-flex;
    align-items: center;
    padding: 13px 22px;
    font-size: 15.5px;
    font-weight: 500;
    border-radius: 7px;
    text-decoration: none;
}

.cta { color: #fff; background: var(--indigo); }
.cta:hover { background: var(--indigo-deep); }

.cta-quiet { color: var(--text); border: 1px solid var(--line); }
.cta-quiet:hover { background: var(--paper-sunk); }

.micro { margin: 0; font-size: 13.5px; color: var(--text-muted); }

/* -------------------------------------------------- hero panel (palette) */

.hero-panel {
    padding: 20px;
    background: var(--ink);
    border-radius: 12px;
    box-shadow: 0 24px 60px -28px rgba(14, 22, 38, .55);
}

.panel-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    margin-bottom: 16px;
}

.panel-title {
    font-size: 13.5px;
    font-weight: 500;
    color: #C8D0E4;
}

.panel-timer {
    font-family: var(--font-mono);
    font-size: 14px;
    color: var(--review);
}

.palette {
    display: grid;
    grid-template-columns: repeat(10, 1fr);
    gap: 6px;
    margin-bottom: 18px;
}

.palette span {
    display: grid;
    place-items: center;
    aspect-ratio: 1;
    border-radius: 6px;
    font-family: var(--font-mono);
    font-size: 12px;
    color: #0E1626;
    background: var(--unseen);
    opacity: 0;
    animation: pop .3s ease-out forwards;
}

.palette .is-answered { background: var(--answered); color: #fff; }
.palette .is-review   { background: var(--review); color: #3D2A00; }
.palette .is-unseen   { background: rgba(255, 255, 255, .09); color: #7C89A6; }
.palette .is-current  { background: #fff; box-shadow: 0 0 0 2px var(--indigo); }

@keyframes pop {
    from { opacity: 0; transform: translateY(4px) scale(.94); }
    to   { opacity: 1; transform: none; }
}

.legend { display: flex; flex-wrap: wrap; gap: 6px 16px; font-size: 12.5px; color: #A9B4CE; }
.legend span { display: inline-flex; align-items: center; gap: 7px; }
.legend i { width: 10px; height: 10px; border-radius: 3px; background: var(--unseen); }
.legend .k-answered { background: var(--answered); }
.legend .k-review   { background: var(--review); }
.legend .k-unseen   { background: rgba(255, 255, 255, .18); }

/* ------------------------------------------------------------------ strip */

.strip {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 34px;
    max-width: 1120px;
    margin: 0 auto;
    padding: 46px 24px 60px;
    border-top: 1px solid var(--line);
}

.strip-item h2 {
    margin: 0 0 8px;
    font-family: var(--font-display);
    font-size: 17px;
    font-weight: 600;
    letter-spacing: -.015em;
}

.strip-item p { margin: 0; font-size: 15px; color: var(--text-muted); }

/* --------------------------------------------------------- install status */

.install-status {
    max-width: 1120px;
    margin: 0 auto 60px;
    padding: 22px 24px;
    background: var(--paper-sunk);
    border: 1px solid var(--line);
    border-radius: 10px;
}

.install-status h2 {
    margin: 0 0 14px;
    font-family: var(--font-display);
    font-size: 15px;
    font-weight: 600;
}

.install-status h2 span {
    margin-left: 8px;
    font-family: var(--font-body);
    font-size: 12.5px;
    font-weight: 400;
    color: var(--text-muted);
}

.install-status ul {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 28px;
    margin: 0 0 12px;
    padding: 0;
    list-style: none;
    font-size: 14px;
    color: var(--text-muted);
}

.install-status strong { color: var(--text); font-family: var(--font-mono); font-weight: 500; }

.install-status p { margin: 0; font-size: 13.5px; color: var(--text-muted); }

.install-status code {
    padding: 1px 5px;
    font-family: var(--font-mono);
    font-size: 12.5px;
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: 4px;
}

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

.site-foot {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    max-width: 1120px;
    margin: 0 auto;
    padding: 22px 24px 40px;
    border-top: 1px solid var(--line);
    font-size: 13.5px;
    color: var(--text-muted);
}

.site-foot a { color: var(--text-muted); text-decoration: none; }
.site-foot a:hover { color: var(--indigo); }
.site-foot .dot { opacity: .5; }

a:focus-visible, .cta:focus-visible, .nav-cta:focus-visible {
    outline: 2px solid var(--indigo);
    outline-offset: 2px;
}

/* ------------------------------------------------------------- responsive */

@media (max-width: 860px) {
    .hero {
        grid-template-columns: 1fr;
        gap: 34px;
        padding: 30px 20px 48px;
    }

    .hero-panel { order: -1; }
    .palette { grid-template-columns: repeat(10, 1fr); }
    .strip { padding: 36px 20px 44px; gap: 26px; }
}

@media (prefers-reduced-motion: reduce) {
    .palette span { animation: none; opacity: 1; }
}