/* ============================================================
   SAT — Smartphone-based Analysis Assessment Tool
   Design system & component styles
   ============================================================ */

:root {
    /* Category palette (mirrors the rubric dashboard) */
    --blue-600: #1763ad;
    --blue-700: #11528f;
    --blue-50: #eaf3fc;

    --green-600: #2f9e44;
    --green-700: #237536;
    --green-50: #e9f8ee;

    --amber-600: #e8911c;
    --amber-700: #c5760f;
    --amber-50: #fdf3e2;

    --purple-600: #7e3ff2;
    --purple-700: #5f2bc0;
    --purple-50: #f1eafe;

    --excellent: #2f9e44;
    --good: #1763ad;
    --acceptable: #e8911c;
    --poor: #e03131;

    --ink: #16233a;
    --ink-soft: #51607a;
    --line: #e4e9f2;
    --bg: #f5f7fb;
    --card: #ffffff;
    --radius: 18px;
    --shadow-sm: 0 1px 2px rgba(20, 35, 60, .06), 0 6px 16px rgba(20, 35, 60, .06);
    --shadow-md: 0 10px 30px rgba(20, 35, 60, .12);

    --font: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

html { font-size: 16px; scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: var(--font);
    color: var(--ink);
    background:
        radial-gradient(1200px 500px at 100% -10%, #eef3fb 0, transparent 60%),
        radial-gradient(1000px 500px at -10% 0, #f0ecfb 0, transparent 55%),
        var(--bg);
    min-height: 100vh;
}

a { color: var(--blue-600); text-decoration: none; }
a:hover { text-decoration: underline; }

.sat-icon { width: 1.4em; height: 1.4em; }

/* ---------- Layout shell ---------- */
.sat-shell { max-width: 1180px; margin: 0 auto; padding: 0 20px; }

.sat-header {
    position: sticky; top: 0; z-index: 50;
    backdrop-filter: saturate(160%) blur(10px);
    background: rgba(255, 255, 255, .82);
    border-bottom: 1px solid var(--line);
}
.sat-header .sat-shell {
    display: flex; align-items: center; justify-content: space-between;
    height: 72px;
}
.sat-brand { display: flex; align-items: center; gap: 12px; }
.sat-brand img { height: 46px; width: auto; }
.sat-brand .name { font-weight: 800; font-size: 1.18rem; letter-spacing: .2px; line-height: 1.05; }
.sat-brand .name span { display: block; font-size: .72rem; font-weight: 600; color: var(--ink-soft); letter-spacing: 1.5px; }

.sat-nav { display: flex; gap: 6px; align-items: center; }
.sat-nav a {
    color: var(--ink-soft); font-weight: 600; font-size: .94rem;
    padding: 9px 14px; border-radius: 10px; text-decoration: none;
}
.sat-nav a:hover { background: #eef2f8; color: var(--ink); }
.sat-nav a.cta {
    background: linear-gradient(135deg, var(--blue-600), var(--purple-600));
    color: #fff; box-shadow: var(--shadow-sm);
}
.sat-nav a.cta:hover { filter: brightness(1.05); }

.sat-main { padding: 34px 0 60px; }

.sat-footer {
    border-top: 1px solid var(--line);
    color: var(--ink-soft); font-size: .88rem;
    padding: 22px 0; background: rgba(255, 255, 255, .6);
}
.sat-footer .sat-shell { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; }

/* ---------- Buttons ---------- */
.btn-sat {
    display: inline-flex; align-items: center; gap: 9px; cursor: pointer;
    border: 0; border-radius: 12px; padding: 14px 24px;
    font-weight: 700; font-size: 1rem; font-family: var(--font);
    background: linear-gradient(135deg, var(--blue-600), var(--purple-600));
    color: #fff; box-shadow: var(--shadow-sm); transition: transform .12s, filter .12s;
    text-decoration: none;
}
.btn-sat:hover { filter: brightness(1.06); transform: translateY(-1px); color: #fff; text-decoration: none; }
.btn-sat.ghost { background: #fff; color: var(--ink); border: 1px solid var(--line); box-shadow: none; }
.btn-sat.ghost:hover { background: #f3f6fb; color: var(--ink); }

/* ---------- Hero ---------- */
.hero { display: grid; grid-template-columns: 1.15fr .85fr; gap: 40px; align-items: center; padding: 26px 0 18px; }
.hero .eyebrow {
    display: inline-flex; align-items: center; gap: 8px;
    background: #fff; border: 1px solid var(--line); border-radius: 999px;
    padding: 7px 14px; font-weight: 700; font-size: .78rem; letter-spacing: 1px;
    color: var(--purple-700); text-transform: uppercase; box-shadow: var(--shadow-sm);
}
.hero h1 { font-size: clamp(2rem, 4vw, 3rem); line-height: 1.07; margin: 18px 0 14px; letter-spacing: -.5px; }
.hero h1 .grad {
    background: linear-gradient(120deg, var(--blue-600), var(--green-600), var(--amber-600), var(--purple-600));
    -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero p.lead { font-size: 1.1rem; color: var(--ink-soft); max-width: 36rem; margin: 0 0 26px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-art {
    position: relative; display: grid; place-items: center;
    background: radial-gradient(closest-side, rgba(126,63,242,.12), transparent 72%);
}
.hero-art img { width: 100%; max-width: 380px; filter: drop-shadow(0 24px 40px rgba(20,35,60,.18)); }

/* ---------- Stat chips ---------- */
.cat-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 34px; }
.cat-chip {
    background: var(--card); border-radius: var(--radius); padding: 18px 18px 16px;
    box-shadow: var(--shadow-sm); border: 1px solid var(--line);
    border-top: 4px solid var(--c, var(--blue-600));
}
.cat-chip .ic { width: 42px; height: 42px; border-radius: 12px; display: grid; place-items: center; color: #fff; background: var(--c); margin-bottom: 12px; }
.cat-chip .ic .sat-icon { width: 22px; height: 22px; }
.cat-chip h3 { margin: 0; font-size: 1rem; }
.cat-chip .pts { font-size: .82rem; color: var(--ink-soft); font-weight: 600; }

/* ---------- Section headings ---------- */
.section-title { display: flex; align-items: baseline; gap: 12px; margin: 46px 0 18px; }
.section-title h2 { font-size: 1.5rem; margin: 0; }
.section-title .muted { color: var(--ink-soft); font-size: .95rem; }

/* ---------- Theme color hooks ---------- */
.theme-blue   { --c: var(--blue-600);   --c-700: var(--blue-700);   --c-50: var(--blue-50); }
.theme-green  { --c: var(--green-600);  --c-700: var(--green-700);  --c-50: var(--green-50); }
.theme-amber  { --c: var(--amber-600);  --c-700: var(--amber-700);  --c-50: var(--amber-50); }
.theme-purple { --c: var(--purple-600); --c-700: var(--purple-700); --c-50: var(--purple-50); }

/* ============================================================
   Questionnaire
   ============================================================ */
.assess-head { text-align: center; margin-bottom: 30px; }
.assess-head h1 { font-size: 2rem; margin: 6px 0 8px; }
.assess-head p { color: var(--ink-soft); margin: 0 auto; max-width: 40rem; }

.method-field {
    background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
    box-shadow: var(--shadow-sm); padding: 18px 22px; margin: 0 auto 28px; max-width: 640px;
    display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
}
.method-field label { font-weight: 700; }
.method-field input {
    flex: 1; min-width: 220px; border: 1px solid var(--line); border-radius: 10px;
    padding: 11px 14px; font-size: 1rem; font-family: var(--font); color: var(--ink);
}
.method-field input:focus { outline: 2px solid var(--blue-600); outline-offset: 1px; border-color: transparent; }

.cat-block {
    background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
    box-shadow: var(--shadow-sm); margin-bottom: 24px; overflow: hidden;
}
.cat-block > header {
    display: flex; align-items: center; gap: 14px; padding: 18px 22px; color: #fff;
    background: linear-gradient(120deg, var(--c), var(--c-700));
}
.cat-block > header .ic { width: 40px; height: 40px; border-radius: 11px; display: grid; place-items: center; background: rgba(255,255,255,.18); }
.cat-block > header h2 { margin: 0; font-size: 1.2rem; }
.cat-block > header .max { margin-left: auto; background: rgba(255,255,255,.22); border-radius: 999px; padding: 6px 14px; font-weight: 700; font-size: .85rem; white-space: nowrap; }

.param { padding: 18px 22px; border-top: 1px solid var(--line); display: grid; grid-template-columns: 270px 1fr; gap: 18px; align-items: center; }
.param:first-of-type { border-top: 0; }
.param .p-label { display: flex; align-items: center; gap: 12px; font-weight: 600; }
.param .p-label .ic { width: 38px; height: 38px; border-radius: 10px; display: grid; place-items: center; color: var(--c); background: var(--c-50); flex: none; }
.param .p-label .ic .sat-icon { width: 20px; height: 20px; }

.options { display: flex; flex-wrap: wrap; gap: 10px; }
.opt { position: relative; }
.opt input { position: absolute; opacity: 0; inset: 0; cursor: pointer; }
.opt label {
    display: inline-flex; align-items: center; gap: 9px; cursor: pointer;
    border: 1.5px solid var(--line); border-radius: 12px; padding: 10px 14px;
    font-weight: 600; font-size: .92rem; background: #fff; transition: all .12s;
}
.opt .pill { font-size: .74rem; font-weight: 800; background: #eef2f8; color: var(--ink-soft); border-radius: 999px; padding: 2px 9px; }
.opt input:checked + label { border-color: var(--c); background: var(--c-50); color: var(--c-700); box-shadow: 0 0 0 3px color-mix(in srgb, var(--c) 16%, transparent); }
.opt input:checked + label .pill { background: var(--c); color: #fff; }
.opt input:focus-visible + label { outline: 2px solid var(--c); outline-offset: 2px; }

.assess-actions { display: flex; justify-content: center; gap: 14px; margin-top: 30px; flex-wrap: wrap; }
.progress-note { text-align: center; color: var(--ink-soft); font-size: .9rem; margin-top: 14px; }

/* ============================================================
   Results dashboard (quadrant / puzzle layout)
   ============================================================ */
.result-head { text-align: center; margin-bottom: 12px; }
.result-head .method { color: var(--ink-soft); font-weight: 600; }
.result-head h1 { margin: 6px 0; font-size: 2rem; }

/* ---------- Phone-style puzzle dashboard (mirrors the reference image) ---------- */
.phone {
    max-width: 1060px; margin: 22px auto; position: relative;
    background: #0c0e12; border-radius: 60px; padding: 20px 24px;
    box-shadow: 0 30px 60px rgba(20,35,60,.30), inset 0 0 0 2px #2a2d35;
}
/* left camera island + lens dots */
.phone::before {
    content: ""; position: absolute; left: 7px; top: 50%; transform: translateY(-50%);
    width: 14px; height: 128px; background: #04050a; border-radius: 8px; z-index: 12;
    box-shadow: inset 0 0 0 2px #1d212a;
}
.phone::after {
    content: ""; position: absolute; left: 10px; top: calc(50% - 42px);
    width: 8px; height: 8px; border-radius: 50%; background: #14406f; z-index: 13;
    box-shadow: 0 30px 0 #14406f, 0 60px 0 rgba(20,64,111,.6);
}
.phone-side { position: absolute; right: -4px; top: 34%; width: 5px; height: 84px; background: #14171d; border-radius: 4px; }
.phone-screen {
    background: #fff; border-radius: 42px; overflow: hidden; position: relative;
}
.dash-grid { display: grid; grid-template-columns: 1fr 1fr; grid-template-rows: 1fr 1fr; gap: 4px; background: #fff; }

.quad {
    position: relative; display: flex; flex-direction: column; min-height: 312px;
    padding: 14px 14px 16px; background: linear-gradient(180deg, #ffffff 0%, var(--c-50) 100%);
}
.quad.full { background: var(--c); }
.quad-head {
    color: #fff; text-align: center; font-weight: 800; text-transform: uppercase; letter-spacing: .4px;
    font-size: 1.02rem; border-radius: 11px; padding: 12px 14px;
    background: linear-gradient(120deg, var(--c), var(--c-700));
    box-shadow: 0 5px 12px color-mix(in srgb, var(--c) 32%, transparent);
}
.quad.full .quad-head { background: var(--c-700); box-shadow: none; }

.quad-body { flex: 1; padding: 20px 2px 8px; display: flex; align-items: flex-start; }
.icons-row { display: flex; justify-content: space-around; align-items: flex-start; gap: 12px 2px; width: 100%; flex-wrap: wrap; }
.icon-item { width: 72px; display: flex; flex-direction: column; align-items: center; text-align: center; gap: 9px; }
.icon-item .ic { color: var(--c); height: 42px; display: grid; place-items: center; }
.icon-item .ic .sat-icon { width: 40px; height: 40px; stroke-width: 1.7; }
.icon-item .nm { font-size: .72rem; line-height: 1.2; font-weight: 600; color: #2a3650; min-height: 2.85em; display: flex; align-items: center; justify-content: center; }
.icon-item .sc { font-size: 1.65rem; font-weight: 800; color: var(--c-700); line-height: 1; }

/* Accessibility (single parameter) — large hero treatment, full colour */
.quad.full .quad-body { align-items: center; }
.quad.full .icons-row { justify-content: center; }
.quad.full .icon-item { width: auto; gap: 12px; }
.quad.full .icon-item .ic { color: #fff; height: auto; }
.quad.full .icon-item .ic .sat-icon { width: 70px; height: 70px; }
.quad.full .icon-item .nm { color: #fff; font-size: 1.05rem; min-height: 0; }
.quad.full .icon-item .sc { color: #fff; font-size: 2.8rem; }

.max-pill {
    align-self: center; margin-top: auto; background: var(--c); color: #fff;
    border-radius: 8px; padding: 7px 20px; font-weight: 700; font-size: .86rem;
    box-shadow: 0 3px 8px color-mix(in srgb, var(--c) 30%, transparent);
}
.quad.full .max-pill { background: var(--c-700); box-shadow: none; }

/* Center puzzle hub — dead-centre on the cross (equal rows/cols) */
.total-hub {
    position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); z-index: 20;
    width: 130px; height: 130px; border-radius: 50%; background: #fff; text-align: center;
    display: grid; place-items: center; align-content: center;
    box-shadow: 0 6px 20px rgba(20,35,60,.32);
}
.total-hub .ring {
    position: absolute; inset: 0; border-radius: 50%;
    background: conic-gradient(var(--grade-color) calc(var(--pct) * 1%), #e7ecf4 0);
    -webkit-mask: radial-gradient(farthest-side, transparent calc(100% - 7px), #000 calc(100% - 6px));
            mask: radial-gradient(farthest-side, transparent calc(100% - 7px), #000 calc(100% - 6px));
}
.total-hub .lab { font-size: .56rem; letter-spacing: 1.3px; font-weight: 800; color: var(--ink-soft); line-height: 1.15; }
.total-hub .val { font-size: 2.6rem; font-weight: 800; color: var(--ink); line-height: .88; }
.total-hub .of { font-size: .55rem; letter-spacing: 1.1px; font-weight: 800; color: var(--ink-soft); text-transform: uppercase; }
/* small connector nubs on the seams to evoke interlocking puzzle pieces */
.nub { position: absolute; width: 16px; height: 16px; border-radius: 50%; background: #fff; z-index: 15; box-shadow: 0 2px 6px rgba(20,35,60,.18); }
.nub.n { left: 50%; top: calc(50% - 80px); transform: translate(-50%, -50%); }
.nub.s { left: 50%; top: calc(50% + 80px); transform: translate(-50%, -50%); }
.nub.w { left: calc(50% - 96px); top: 50%; transform: translate(-50%, -50%); }
.nub.e { left: calc(50% + 96px); top: 50%; transform: translate(-50%, -50%); }

/* compact grade summary under the phone */
.grade-summary { display: flex; align-items: center; justify-content: center; gap: 16px; flex-wrap: wrap; margin: 4px 0 6px; text-align: center; }
.grade-chip {
    display: inline-flex; align-items: center; gap: 8px; color: #fff; font-weight: 800;
    letter-spacing: .4px; border-radius: 999px; padding: 9px 18px; font-size: 1rem;
    background: var(--grade); box-shadow: var(--shadow-sm);
}
.grade-chip .sat-icon { width: 20px; height: 20px; }
.grade-summary .gs-text { color: var(--ink-soft); max-width: 40rem; }

/* Grade banner */
.grade-banner {
    display: flex; align-items: center; gap: 18px; border-radius: var(--radius);
    padding: 20px 24px; color: #fff; box-shadow: var(--shadow-sm); margin: 20px 0;
}
.grade-banner.excellent  { background: linear-gradient(120deg, #2f9e44, #1f7a33); }
.grade-banner.good        { background: linear-gradient(120deg, #1763ad, #11528f); }
.grade-banner.acceptable  { background: linear-gradient(120deg, #e8911c, #c5760f); }
.grade-banner.poor        { background: linear-gradient(120deg, #e03131, #b02525); }
.grade-banner .ic { width: 56px; height: 56px; border-radius: 14px; background: rgba(255,255,255,.2); display: grid; place-items: center; flex: none; }
.grade-banner .ic .sat-icon { width: 30px; height: 30px; }
.grade-banner .g-label { font-size: .8rem; letter-spacing: 1.5px; text-transform: uppercase; opacity: .85; font-weight: 700; }
.grade-banner .g-value { font-size: 1.8rem; font-weight: 800; line-height: 1.1; }
.grade-banner .g-score { margin-left: auto; text-align: right; }
.grade-banner .g-score b { font-size: 2rem; }

/* Summary table */
.summary-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-sm); overflow: hidden; margin-top: 22px; }
.summary-card h2 { margin: 0; padding: 16px 22px; border-bottom: 1px solid var(--line); font-size: 1.15rem; }
table.sat-table { width: 100%; border-collapse: collapse; }
table.sat-table th, table.sat-table td { padding: 12px 22px; text-align: left; border-bottom: 1px solid var(--line); font-size: .92rem; }
table.sat-table th { background: #f7f9fc; color: var(--ink-soft); font-size: .78rem; letter-spacing: .6px; text-transform: uppercase; }
table.sat-table td.score { text-align: right; font-weight: 700; white-space: nowrap; }
table.sat-table tr.cat-row td { background: #fbfcfe; font-weight: 800; }
table.sat-table tr.total-row td { font-weight: 800; font-size: 1rem; background: #f2f6fc; }
.dot { display: inline-block; width: 9px; height: 9px; border-radius: 50%; margin-right: 9px; vertical-align: middle; }

.result-actions { display: flex; gap: 14px; justify-content: center; margin: 30px 0 10px; flex-wrap: wrap; }

/* Reference grade scale */
.grade-scale { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: 18px; }
.grade-scale .g { border-radius: 14px; padding: 14px 16px; color: #fff; }
.grade-scale .g b { display: block; font-size: 1.05rem; }
.grade-scale .g span { font-size: .82rem; opacity: .9; }
.grade-scale .g.excellent { background: var(--excellent); }
.grade-scale .g.good { background: var(--good); }
.grade-scale .g.acceptable { background: var(--acceptable); }
.grade-scale .g.poor { background: var(--poor); }
.grade-scale .g { transition: opacity .2s, transform .2s; }
.grade-scale:has(.on) .g:not(.on) { opacity: .42; }
.grade-scale .g.on { transform: translateY(-3px); box-shadow: var(--shadow-md); outline: 3px solid rgba(255,255,255,.75); outline-offset: -3px; }

/* ---------- About ---------- */
.prose { max-width: 760px; margin: 0 auto; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-sm); padding: 30px 34px; }
.prose h1 { margin-top: 0; }
.prose h2 { font-size: 1.2rem; margin-top: 26px; }
.prose ul { padding-left: 20px; color: var(--ink-soft); }
.prose li { margin: 6px 0; }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
    .hero { grid-template-columns: 1fr; }
    .hero-art { order: -1; }
    .cat-strip { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 820px) {
    .dash-grid { grid-template-columns: 1fr; grid-template-rows: none; }
    .total-hub, .nub { display: none; }
    .quad { min-height: 0; }
    .phone { padding: 12px; border-radius: 32px; }
    .phone::before, .phone::after, .phone-side { display: none; }
    .phone-screen { border-radius: 24px; }
}
@media (max-width: 780px) {
    .param { grid-template-columns: 1fr; }
    .sat-nav a:not(.cta) { display: none; }
    .grade-scale { grid-template-columns: repeat(2, 1fr); }
}
@media print {
    .sat-header, .sat-footer, .result-actions { display: none !important; }
    body { background: #fff; }
    .phone { box-shadow: none; }
    .summary-card { box-shadow: none; }
}