:root {
  --canvas: #070a11;
  --surface: #0e1420;
  --card: #141c2a;
  --raised: #1a2434;
  --line: #273246;
  --ink: #f7f9fc;
  --muted: #9ba7b8;
  --brand: #ff5a36;
  --brand-2: #ff7a2f;
  --blue: #1857c9;
  --success: #2ecc71;
  --danger: #ff4d5a;
  --warning: #f5c451;
  --sidebar: 264px;
  --radius: 16px;
  --shadow: 0 24px 70px rgba(0, 0, 0, .3);
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; background: var(--canvas); color: var(--ink); font-size: 15px; line-height: 1.55; }
body::selection { background: rgba(255,90,54,.35); }
img, svg { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; text-decoration: none; }
p, h1, h2, h3, h4 { margin-top: 0; }
h1, h2, h3 { line-height: 1.12; letter-spacing: -.025em; }
em { color: var(--brand); font-style: normal; }
fieldset { min-width: 0; margin: 0; padding: 0; border: 0; }
dialog { color: var(--ink); }

.container { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }
.sr-only { position: absolute!important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; z-index: 9999; top: 10px; left: 10px; transform: translateY(-150%); padding: 10px 14px; border-radius: 8px; background: var(--brand); color: #17100d; font-weight: 800; }
.skip-link:focus { transform: translateY(0); }
.muted-text { color: var(--muted); }
.positive { color: var(--success)!important; }
.negative { color: var(--danger)!important; }
.mini-label { color: var(--muted); font-size: 11px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.eyebrow { display: inline-flex; align-items: center; gap: 9px; margin-bottom: 14px; color: var(--muted); font-size: 12px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.eyebrow > span { width: 24px; height: 2px; border-radius: 2px; background: linear-gradient(90deg, var(--brand), var(--brand-2)); }
.back-link, .text-link { color: #c6d1df; font-weight: 700; }
.back-link:hover, .text-link:hover { color: var(--brand-2); }
.content-narrow { width: min(760px, 100%); margin-inline: auto; }
.content-narrow--wide { width: min(980px, 100%); }

.button { display: inline-flex; min-height: 44px; align-items: center; justify-content: center; gap: 9px; padding: 10px 17px; border: 1px solid transparent; border-radius: 11px; cursor: pointer; font-weight: 800; line-height: 1; transition: transform .18s ease, border-color .18s ease, background .18s ease, color .18s ease; }
.button:hover { transform: translateY(-1px); }
.button:focus-visible, .icon-button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, summary:focus-visible { outline: 3px solid rgba(255,122,47,.28); outline-offset: 2px; }
.button--primary { background: linear-gradient(135deg, var(--brand), var(--brand-2)); color: #1b0d08; box-shadow: 0 10px 26px rgba(255,90,54,.2); }
.button--primary:hover { box-shadow: 0 14px 32px rgba(255,90,54,.32); }
.button--secondary { border-color: var(--line); background: rgba(26,36,52,.82); color: var(--ink); }
.button--secondary:hover, .button--ghost:hover { border-color: #48576d; background: var(--raised); }
.button--ghost { border-color: transparent; background: transparent; color: #c9d1dc; }
.button--danger, .button--danger-ghost { color: #fff; }
.button--danger { background: var(--danger); }
.button--danger-ghost { border-color: rgba(255,77,90,.35); background: rgba(255,77,90,.08); color: #ff929a; }
.button--sm { min-height: 38px; padding: 8px 13px; font-size: 13px; }
.button--lg { min-height: 52px; padding-inline: 22px; }
.button--block { width: 100%; }
.button[disabled] { opacity: .45; pointer-events: none; }
.button-row { display: flex; flex-wrap: wrap; gap: 10px; }
.button__count { display: grid; min-width: 20px; height: 20px; place-items: center; border-radius: 99px; background: var(--brand); color: #1b0d08; font-size: 11px; }
.icon-button { display: inline-grid; width: 42px; height: 42px; place-items: center; padding: 0; border: 1px solid var(--line); border-radius: 11px; background: rgba(20,28,42,.8); color: var(--ink); cursor: pointer; }
.icon-button svg { width: 21px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; }

.brand { display: inline-flex; align-items: center; gap: 10px; }
.brand__mark { display: grid; width: 40px; height: 40px; place-items: center; border: 1px solid rgba(255,122,47,.55); border-radius: 11px; background: linear-gradient(145deg, rgba(255,90,54,.2), rgba(24,87,201,.16)); color: var(--brand-2); font-size: 13px; font-weight: 950; letter-spacing: -.04em; box-shadow: inset 0 0 18px rgba(255,90,54,.08); }
.brand__copy { display: grid; line-height: 1.05; }
.brand__copy strong { font-size: 15px; }
.brand__copy small { margin-top: 4px; color: var(--muted); font-size: 10px; font-weight: 800; letter-spacing: .15em; text-transform: uppercase; }
.brand--large .brand__mark { width: 48px; height: 48px; }

.badge, .status-badge { display: inline-flex; min-height: 25px; align-items: center; gap: 6px; padding: 4px 9px; border: 1px solid var(--line); border-radius: 999px; background: rgba(39,50,70,.32); color: #bdc8d7; font-size: 11px; font-weight: 800; line-height: 1; }
.badge--info { border-color: rgba(24,87,201,.4); background: rgba(24,87,201,.13); color: #86b1ff; }
.badge--warning, .status-badge--warning { border-color: rgba(245,196,81,.35); background: rgba(245,196,81,.1); color: var(--warning); }
.badge--danger, .status-badge--danger { border-color: rgba(255,77,90,.35); background: rgba(255,77,90,.1); color: #ff8b94; }
.status-badge--success { border-color: rgba(46,204,113,.35); background: rgba(46,204,113,.1); color: #70e7a2; }
.status-badge i { width: 6px; height: 6px; border-radius: 50%; background: currentColor; box-shadow: 0 0 0 4px rgba(245,196,81,.1); }
.tag-row { display: flex; flex-wrap: wrap; gap: 7px; }

.form-field { display: grid; gap: 7px; }
.form-field > label { color: #c9d2df; font-size: 13px; font-weight: 750; }
.form-field input:not([type="checkbox"]):not([type="radio"]), .form-field select, .form-field textarea, .stack-form input:not([type="checkbox"]):not([type="radio"]), .stack-form select, .stack-form textarea, .inline-filter select { width: 100%; min-height: 46px; padding: 10px 12px; border: 1px solid var(--line); border-radius: 10px; background: #0c121d; color: var(--ink); }
textarea { resize: vertical; }
input::placeholder, textarea::placeholder { color: #687689; }
.form-field select { appearance: auto; }
.form-field .helptext, .form-help { color: var(--muted); font-size: 12px; }
.form-field ul.errorlist, .errorlist { margin: 0; padding: 0; color: #ff8992; font-size: 12px; list-style: none; }
.stack-form { display: grid; gap: 16px; }
.form-grid { display: grid; gap: 12px; }
.form-grid--two { grid-template-columns: repeat(2, minmax(0,1fr)); }
.filter-fields { display: grid; gap: 13px; }
.filter-fields--inline { grid-template-columns: repeat(5,minmax(150px,1fr)); margin-top: 18px; align-items: end; }
.filter-fields--inline .button-row { grid-column: 1/-1; }
.form-panel { margin-top: 18px; }
.form-panel h1 { margin: 10px 0; }

.messages { display: grid; gap: 8px; margin-bottom: 16px; }
.message { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px 14px; border: 1px solid var(--line); border-radius: 11px; background: var(--card); }
.message--success { border-color: rgba(46,204,113,.35); }
.message--error { border-color: rgba(255,77,90,.4); }
.message button { border: 0; background: transparent; color: var(--muted); cursor: pointer; }
.alert { display: flex; gap: 12px; padding: 14px; border: 1px solid var(--line); border-radius: 12px; }
.alert--warning { border-color: rgba(245,196,81,.3); background: rgba(245,196,81,.08); color: #f8dda0; }
.alert__icon { display: grid; flex: 0 0 26px; height: 26px; place-items: center; border-radius: 50%; background: var(--warning); color: #1d180c; font-weight: 900; }

/* Public site */
.public-header { position: sticky; z-index: 80; top: 0; border-bottom: 1px solid rgba(39,50,70,.7); background: rgba(7,10,17,.82); backdrop-filter: blur(18px); }
.public-header__inner { display: flex; min-height: 76px; align-items: center; justify-content: space-between; }
.public-nav { display: flex; align-items: center; gap: 27px; color: #b6c0cf; font-size: 14px; font-weight: 650; }
.public-nav > a:hover { color: var(--ink); }
.public-nav__actions { display: flex; gap: 8px; margin-left: 12px; }
.public-menu-toggle { display: none; }
.hero { position: relative; overflow: hidden; min-height: 720px; border-bottom: 1px solid var(--line); }
.hero::before { position: absolute; inset: 0; content: ""; background: linear-gradient(rgba(255,255,255,.018) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.018) 1px, transparent 1px); background-size: 52px 52px; mask-image: linear-gradient(to bottom, #000, transparent 90%); }
.hero__glow { position: absolute; width: 500px; height: 500px; border-radius: 50%; filter: blur(100px); opacity: .15; }
.hero__glow--one { top: -180px; left: -160px; background: var(--brand); }
.hero__glow--two { right: -180px; bottom: -220px; background: var(--blue); }
.hero__grid { position: relative; display: grid; min-height: 680px; grid-template-columns: 1.04fr .96fr; align-items: center; gap: 68px; padding-block: 76px; }
.hero__content h1 { max-width: 700px; margin: 0; font-size: clamp(52px,6vw,82px); font-weight: 950; letter-spacing: -.065em; }
.hero__lead { max-width: 630px; margin: 24px 0; color: #aeb9c9; font-size: 19px; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 11px; }
.hero__trust { display: flex; align-items: center; gap: 14px; margin-top: 30px; color: var(--muted); font-size: 12px; }
.hero__trust p { margin: 0; }
.hero__trust strong { color: #dce3ec; }
.avatar-stack { display: flex; }
.avatar-stack span { display: grid; width: 34px; height: 34px; place-items: center; margin-left: -7px; border: 2px solid var(--canvas); border-radius: 50%; background: var(--raised); color: var(--brand-2); font-size: 9px; font-weight: 900; }
.avatar-stack span:first-child { margin-left: 0; }
.hero-dashboard { position: relative; padding: 22px; border: 1px solid #334057; border-radius: 22px; background: linear-gradient(145deg, rgba(26,36,52,.96), rgba(14,20,32,.96)); box-shadow: var(--shadow), inset 0 1px rgba(255,255,255,.035); transform: perspective(900px) rotateY(-3deg) rotateX(1deg); }
.hero-dashboard::after { position: absolute; z-index: -1; inset: 20px -16px -18px 24px; border: 1px solid rgba(255,90,54,.13); border-radius: inherit; background: rgba(255,90,54,.035); content: ""; }
.hero-dashboard__top, .hero-chart__head { display: flex; align-items: center; justify-content: space-between; gap: 15px; }
.hero-dashboard__top strong { display: block; margin-top: 4px; font-size: 18px; }
.status-dot { display: inline-flex; align-items: center; gap: 6px; color: #79eaa9; font-size: 11px; font-weight: 800; }
.status-dot::before { width: 7px; height: 7px; border-radius: 50%; background: var(--success); content: ""; box-shadow: 0 0 0 5px rgba(46,204,113,.09); }
.hero-dashboard__metrics { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-block: 18px; }
.hero-dashboard__metrics article { padding: 15px; border: 1px solid var(--line); border-radius: 13px; background: #111a28; }
.hero-dashboard__metrics span, .hero-dashboard__metrics small { display: block; color: var(--muted); font-size: 11px; }
.hero-dashboard__metrics strong { display: block; margin: 4px 0; font-size: 27px; }
.hero-chart { padding: 15px; border: 1px solid var(--line); border-radius: 14px; background: #0d1521; }
.hero-chart__head { color: var(--muted); font-size: 11px; }
.hero-chart__head strong { color: var(--ink); }
.bar-chart { display: flex; height: 145px; align-items: end; justify-content: space-between; gap: 9px; padding-top: 18px; }
.bar-chart > span { position: relative; width: 10%; height: var(--bar); min-height: 12px; border-radius: 6px 6px 2px 2px; background: #344156; }
.bar-chart > span.is-today { background: linear-gradient(to top,var(--brand),var(--brand-2)); box-shadow: 0 0 20px rgba(255,90,54,.2); }
.bar-chart i { position: absolute; top: calc(100% + 8px); left: 50%; color: #66758a; font-size: 8px; font-style: normal; transform: translateX(-50%); }
.hero-dashboard__goal { display: flex; align-items: center; gap: 14px; margin-top: 28px; }
.hero-dashboard__goal strong, .hero-dashboard__goal small { display: block; }
.hero-dashboard__goal small { color: var(--muted); }
.goal-ring { position: relative; display: grid; width: 60px; height: 60px; flex: 0 0 auto; place-items: center; border-radius: 50%; background: conic-gradient(var(--brand) 0 var(--value,64%), var(--line) var(--value,64%) 100%); }
.goal-ring::before { position: absolute; width: 44px; height: 44px; border-radius: 50%; background: var(--card); content: ""; }
.goal-ring > span, .goal-ring > strong { position: relative; z-index: 1; }
.goal-ring--large { position: relative; width: 108px; height: 108px; background: conic-gradient(var(--brand) 0 calc(var(--value,0)*1%), var(--line) calc(var(--value,0)*1%) 100%); }
.goal-ring--large::before { width: 82px; height: 82px; background: var(--card); }
.goal-ring--large > span { display: grid; text-align: center; }
.goal-ring--large strong { font-size: 19px; }
.goal-ring--large small { color: var(--muted); font-size: 9px; }
.career-strip { border-bottom: 1px solid var(--line); background: var(--surface); }
.career-strip .container { display: flex; min-height: 90px; align-items: center; gap: 28px; }
.career-strip p { margin: 0; color: var(--muted); font-size: 11px; font-weight: 800; text-transform: uppercase; }
.career-strip__items { display: flex; flex: 1; flex-wrap: wrap; justify-content: space-between; gap: 18px; color: #d2d9e3; font-weight: 800; }
.section { padding-block: 100px; }
.section--surface { border-block: 1px solid var(--line); background: var(--surface); }
.section-heading { max-width: 720px; margin: 0 auto 44px; text-align: center; }
.section-heading--left { margin-inline: 0; text-align: left; }
.section-heading h2, .method-copy h2, .final-cta h2 { margin-bottom: 14px; font-size: clamp(34px,4vw,52px); }
.section-heading p, .method-copy > p { color: var(--muted); font-size: 17px; }
.feature-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 14px; }
.feature-card { position: relative; overflow: hidden; min-height: 320px; padding: 27px; border: 1px solid var(--line); border-radius: 17px; background: linear-gradient(145deg,var(--card),#101824); }
.feature-card--wide { grid-column: span 2; }
.feature-card__number { position: absolute; top: 20px; right: 22px; color: #344158; font-size: 12px; font-weight: 900; }
.feature-card__icon { display: grid; width: 42px; height: 42px; place-items: center; margin-bottom: 24px; border: 1px solid rgba(255,90,54,.3); border-radius: 11px; background: rgba(255,90,54,.09); color: var(--brand-2); font-weight: 900; }
.feature-card h3 { margin-bottom: 10px; font-size: 21px; }
.feature-card > p { color: var(--muted); }
.feature-card > a { color: var(--brand-2); font-weight: 800; }
.question-preview { max-width: 520px; margin-top: 22px; padding: 16px; border: 1px solid var(--line); border-radius: 13px; background: #0c131e; }
.question-preview p { margin: 13px 0; }
.fake-option { display: flex; align-items: center; justify-content: space-between; margin-top: 7px; padding: 9px 11px; border: 1px solid var(--line); border-radius: 9px; color: var(--muted); }
.fake-option i { width: 13px; height: 13px; border: 1px solid #526178; border-radius: 50%; }
.fake-option.is-selected { border-color: rgba(255,90,54,.4); color: var(--ink); }
.fake-option.is-selected i { border: 4px solid var(--brand); }
.timer-preview, .streak-preview { display: grid; margin-top: 35px; padding: 20px; border: 1px solid var(--line); border-radius: 13px; background: #0c131e; text-align: center; }
.timer-preview strong { color: var(--warning); font-size: 31px; font-variant-numeric: tabular-nums; }
.timer-preview span, .streak-preview small { color: var(--muted); }
.mini-performance { display: grid; gap: 13px; margin-top: 26px; }
.mini-performance > span { display: grid; grid-template-columns: 1fr 60px 36px; align-items: center; gap: 9px; color: var(--muted); font-size: 11px; }
.mini-performance i { order: 2; height: 5px; overflow: hidden; border-radius: 4px; background: var(--line); }
.mini-performance i::after { display: block; width: var(--value); height: 100%; border-radius: inherit; background: var(--brand); content: ""; }
.mini-performance b { order: 1; }
.mini-performance em { order: 3; color: var(--ink); font-size: 11px; }
.streak-preview span { font-size: 30px; }
.streak-preview strong { font-size: 27px; }
.method-grid, .faq-grid { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 80px; }
.method-steps { display: grid; gap: 22px; margin: 32px 0 0; padding: 0; list-style: none; }
.method-steps li { display: grid; grid-template-columns: 46px 1fr; gap: 15px; }
.method-steps li > span { display: grid; width: 42px; height: 42px; place-items: center; border: 1px solid var(--line); border-radius: 11px; color: var(--brand-2); font-size: 11px; font-weight: 900; }
.method-steps strong { font-size: 17px; }
.method-steps p { margin: 4px 0 0; color: var(--muted); }
.review-card { padding: 30px; border: 1px solid #39465a; border-radius: 19px; background: var(--card); box-shadow: var(--shadow); }
.review-card h3 { margin: 8px 0 24px; font-size: 23px; }
.review-item { display: grid; grid-template-columns: 1fr auto; gap: 8px; margin: 17px 0; }
.review-item div { grid-column: 1/-1; height: 6px; overflow: hidden; border-radius: 5px; background: var(--line); }
.review-item i { display: block; width: var(--value); height: 100%; background: linear-gradient(90deg,var(--brand),var(--brand-2)); }
.review-card .button { margin-top: 24px; }
.faq-list { display: grid; gap: 10px; }
.faq-list details, .filter-disclosure { border: 1px solid var(--line); border-radius: 13px; background: var(--card); }
.faq-list summary, .filter-disclosure > summary { display: flex; min-height: 58px; align-items: center; justify-content: space-between; gap: 15px; padding: 15px 18px; cursor: pointer; font-weight: 750; list-style: none; }
.faq-list summary::-webkit-details-marker, .filter-disclosure > summary::-webkit-details-marker { display: none; }
.faq-list details p { padding: 0 18px 17px; margin: 0; color: var(--muted); }
.filter-disclosure { margin-bottom: 18px; padding: 0 18px 18px; }
.filter-disclosure > summary { margin-inline: -18px; padding-inline: 18px; }
.final-cta { padding: 90px 0; background: radial-gradient(circle at 50% 0,rgba(255,90,54,.18),transparent 52%),var(--canvas); text-align: center; }
.final-cta__inner { max-width: 850px; }
.final-cta p { color: var(--muted); font-size: 17px; }
.public-footer { padding: 60px 0 24px; border-top: 1px solid var(--line); background: #05080e; }
.public-footer__grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 50px; }
.public-footer__grid > div { display: grid; align-content: start; gap: 9px; color: var(--muted); }
.public-footer__grid > div:first-child p { max-width: 390px; margin-top: 16px; }
.public-footer__grid strong { color: var(--ink); }
.public-footer__bottom { display: flex; justify-content: space-between; margin-top: 42px; padding-top: 22px; border-top: 1px solid var(--line); color: #6f7d90; font-size: 11px; }

/* Authentication */
.auth-shell { display: grid; min-height: 100vh; grid-template-columns: minmax(380px, .9fr) minmax(520px, 1.1fr); }
.auth-showcase { position: relative; display: flex; overflow: hidden; flex-direction: column; justify-content: space-between; padding: 48px clamp(35px,5vw,82px); border-right: 1px solid var(--line); background: radial-gradient(circle at 15% 15%,rgba(255,90,54,.16),transparent 35%),linear-gradient(145deg,#0d1522,#080c14); }
.auth-showcase::after { position: absolute; inset: 0; background: linear-gradient(rgba(255,255,255,.02) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.02) 1px,transparent 1px); background-size: 48px 48px; content: ""; mask-image: linear-gradient(#000,transparent); }
.auth-showcase > * { position: relative; z-index: 1; }
.auth-showcase__content h1 { max-width: 540px; margin: 0 0 18px; font-size: clamp(48px,6vw,76px); }
.auth-showcase__content > p { max-width: 520px; color: var(--muted); font-size: 17px; }
.check-list { display: grid; gap: 11px; padding: 0; list-style: none; }
.check-list li { display: flex; align-items: center; gap: 10px; }
.check-list li::before { display: grid; width: 22px; height: 22px; place-items: center; border-radius: 50%; background: rgba(46,204,113,.12); color: var(--success); content: "✓"; font-size: 11px; font-weight: 900; }
.auth-showcase__quote { color: #718095; font-size: 12px; }
.auth-panel { display: flex; min-width: 0; flex-direction: column; padding: 32px clamp(24px,6vw,110px); background: var(--canvas); }
.auth-panel__top { min-height: 40px; }
.auth-card { width: min(470px,100%); margin: auto; }
.auth-card__brand { display: none; margin-bottom: 28px; }
.auth-heading { margin-bottom: 26px; }
.auth-heading h1 { margin: 8px 0; font-size: 33px; }
.auth-heading p, .auth-footer { color: var(--muted); }
.auth-footer { margin-top: 20px; text-align: center; }
.auth-footer a { color: var(--brand-2); font-weight: 800; }
.auth-result { text-align: center; }
.auth-result__icon { display: grid; width: 62px; height: 62px; place-items: center; margin: 0 auto 20px; border-radius: 50%; background: rgba(46,204,113,.1); color: var(--success); font-size: 26px; }
.auth-result--warning .auth-result__icon { background: rgba(245,196,81,.1); color: var(--warning); }

/* App shell */
.app-shell { min-height: 100vh; }
.app-sidebar { position: fixed; z-index: 90; inset: 0 auto 0 0; display: flex; width: var(--sidebar); flex-direction: column; border-right: 1px solid var(--line); background: #0a0f18; }
.app-sidebar__header { display: flex; min-height: 76px; align-items: center; justify-content: space-between; padding: 16px 18px; border-bottom: 1px solid var(--line); }
.sidebar-close { display: none; }
.app-nav { display: flex; flex: 1; flex-direction: column; gap: 4px; overflow-y: auto; padding: 18px 13px; }
.app-nav__label { margin: 12px 10px 5px; color: #5e6c80; font-size: 9px; font-weight: 900; letter-spacing: .14em; text-transform: uppercase; }
.app-nav__item { display: flex; min-height: 45px; align-items: center; gap: 11px; padding: 10px 12px; border: 1px solid transparent; border-radius: 10px; color: #8e9aac; font-weight: 680; }
.app-nav__item svg { width: 20px; fill: none; stroke: currentColor; stroke-width: 1.7; }
.app-nav__item:hover { background: rgba(26,36,52,.6); color: #dce3ed; }
.app-nav__item.is-active { border-color: rgba(255,90,54,.22); background: linear-gradient(90deg,rgba(255,90,54,.14),rgba(255,90,54,.03)); color: var(--ink); }
.app-nav__item.is-active svg { color: var(--brand-2); }
.sidebar-progress { margin: 8px 14px 12px; padding: 14px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); }
.sidebar-progress__heading { display: flex; justify-content: space-between; font-size: 11px; }
.sidebar-progress p { margin: 7px 0 0; color: var(--muted); font-size: 10px; }
.progress { height: 7px; overflow: hidden; border-radius: 99px; background: #273246; }
.progress > span { display: block; width: var(--progress,0%); height: 100%; max-width: 100%; border-radius: inherit; background: linear-gradient(90deg,var(--brand),var(--brand-2)); }
.progress--large { height: 9px; }
.sidebar-progress .progress { margin-top: 10px; }
.sidebar-user { display: grid; grid-template-columns: 38px 1fr 34px; align-items: center; gap: 10px; padding: 13px 14px; border-top: 1px solid var(--line); }
.sidebar-user .icon-button { width: 34px; height: 34px; border: 0; background: transparent; }
.sidebar-user__copy { display: grid; min-width: 0; }
.sidebar-user__copy strong { overflow: hidden; font-size: 12px; text-overflow: ellipsis; white-space: nowrap; }
.sidebar-user__copy span { color: var(--muted); font-size: 10px; }
.avatar { display: grid; width: 38px; height: 38px; place-items: center; border-radius: 11px; background: linear-gradient(145deg,var(--brand),#c83b20); color: #180a06; font-size: 13px; font-weight: 950; }
.avatar--button { width: 38px; height: 38px; }
.app-column { min-height: 100vh; margin-left: var(--sidebar); }
.app-topbar { position: sticky; z-index: 70; top: 0; display: flex; min-height: 76px; align-items: center; justify-content: space-between; gap: 14px; padding: 0 28px; border-bottom: 1px solid rgba(39,50,70,.8); background: rgba(7,10,17,.84); backdrop-filter: blur(18px); }
.app-topbar__context { display: grid; }
.app-topbar__context span { color: var(--muted); font-size: 10px; text-transform: uppercase; }
.app-topbar__context strong { font-size: 16px; }
.app-topbar__actions { display: flex; align-items: center; gap: 12px; }
.topbar-streak { display: flex; align-items: center; gap: 5px; padding: 7px 11px; border: 1px solid var(--line); border-radius: 10px; color: var(--muted); }
.topbar-streak strong { color: var(--ink); }
.drawer-toggle { display: none; }
.app-main { width: min(1500px,100%); margin-inline: auto; padding: 30px 32px 90px; }
.mobile-bottom-nav { display: none; }
.drawer-backdrop, .filter-backdrop { position: fixed; z-index: 84; inset: 0; background: rgba(0,0,0,.64); backdrop-filter: blur(3px); }

.page-heading { display: flex; align-items: end; justify-content: space-between; gap: 25px; margin-bottom: 24px; }
.page-heading h1 { margin: 0 0 7px; font-size: clamp(30px,3vw,42px); }
.page-heading p { max-width: 720px; margin: 0; color: var(--muted); }
.page-heading--dashboard { align-items: center; }
.page-heading--dashboard h1 { max-width: 800px; font-size: clamp(36px,4vw,56px); }
.panel { padding: 21px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); box-shadow: inset 0 1px rgba(255,255,255,.018); }
.panel__header { display: flex; align-items: center; justify-content: space-between; gap: 15px; margin-bottom: 20px; }
.panel__header h2 { margin: 4px 0 0; font-size: 19px; }
.metric-grid { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 12px; margin-bottom: 16px; }
.metric-grid--five { grid-template-columns: repeat(5,minmax(0,1fr)); }
.metric-card { position: relative; min-height: 152px; padding: 20px; border: 1px solid var(--line); border-radius: 15px; background: linear-gradient(145deg,var(--card),#101722); }
.metric-card--featured { border-color: rgba(255,90,54,.3); background: linear-gradient(145deg,rgba(255,90,54,.13),var(--card) 60%); }
.metric-card > span { display: block; color: var(--muted); font-size: 12px; }
.metric-card > strong { display: block; margin: 13px 0 5px; font-size: clamp(27px,3vw,37px); font-variant-numeric: tabular-nums; }
.metric-card small { color: #768398; font-size: 10px; }
.metric-card .metric-card__periods { display: block; margin-top: 4px; }
.metric-card__icon { position: absolute; top: 16px; right: 16px; display: grid; width: 30px; height: 30px; place-items: center; border-radius: 8px; font-weight: 900; }
.metric-card__icon--info { background: rgba(24,87,201,.13); color: #79a8ff; }
.metric-card__icon--success { background: rgba(46,204,113,.11); color: var(--success); }
.metric-card__icon--danger { background: rgba(255,77,90,.1); color: var(--danger); }
.metric-card__icon--brand { background: rgba(255,90,54,.12); color: var(--brand); }
.dashboard-grid { display: grid; grid-template-columns: 1.5fr .8fr; gap: 14px; }
.dashboard-grid__chart { min-height: 370px; }
.subject-panel, .review-panel { min-height: 360px; }
.streak-panel { grid-column: 1/-1; display: grid; grid-template-columns: 50px 1fr auto; align-items: center; gap: 15px; min-height: 110px; }
.streak-panel__icon { display: grid; width: 48px; height: 48px; place-items: center; border-radius: 13px; background: rgba(245,196,81,.1); font-size: 24px; }
.streak-panel h2 { margin: 4px 0; }
.streak-panel p { margin: 0; color: var(--muted); }
.week-dots { display: flex; gap: 7px; }
.week-dots span { display: grid; width: 31px; height: 31px; place-items: center; border: 1px solid var(--line); border-radius: 50%; color: #67758a; font-size: 9px; }
.week-dots span.is-complete { border-color: rgba(255,90,54,.4); background: rgba(255,90,54,.1); color: var(--brand-2); }
.daily-goal__body { display: flex; align-items: center; justify-content: center; gap: 20px; padding-block: 10px 20px; }
.daily-goal__numbers > strong { font-size: 25px; }
.daily-goal__numbers > strong span { color: var(--muted); font-weight: 600; }
.daily-goal__numbers p, .daily-goal__hint { color: var(--muted); }
.daily-goal__hint { font-size: 12px; }
.performance-list, .review-list { display: grid; gap: 14px; }
.performance-row__top { display: flex; justify-content: space-between; gap: 12px; margin-bottom: 7px; }
.performance-row small { color: var(--muted); }
.review-topic { display: grid; grid-template-columns: 32px 1fr auto 16px; align-items: center; gap: 12px; padding: 12px; border: 1px solid var(--line); border-radius: 11px; background: rgba(14,20,32,.45); }
.review-topic:hover { border-color: #435168; }
.review-topic__rank { display: grid; width: 31px; height: 31px; place-items: center; border-radius: 8px; background: var(--raised); color: var(--brand-2); font-size: 10px; font-weight: 900; }
.review-topic__copy, .review-topic__score { display: grid; }
.review-topic__copy small, .review-topic__score small { color: var(--muted); font-size: 10px; }
.review-topic__score { text-align: right; }
.data-chart {
    display: flex;
    height: 270px;
    align-items: end;
    gap: 6px;
    padding-top: 25px;
    border-bottom: 1px solid var(--line);
    overflow: hidden;
}

.data-chart--tall {
    height: 310px;
}

/* Hoje: somente uma barra */
.data-chart--today {
    height: 220px;
    justify-content: center;
}

.data-chart--today .data-chart__bar {
    flex: 0 0 120px;
    width: 120px;
    min-width: 120px;
    max-width: 120px;
}

/* 90 dias e Todo o período */
.data-chart--dense {
    gap: 1px;
    overflow: hidden;
}

.data-chart--dense .data-chart__bar {
    flex: 1 1 0;
    width: auto;
    min-width: 0;
    max-width: none;
    border-radius: 2px 2px 0 0;
}

.data-chart__bar {
    position: relative;
    flex: 1;
    height: var(--height, 0%);
    min-width: 5px;
    min-height: 2px;
    border-radius: 5px 5px 0 0;
    background: linear-gradient(
        to top,
        rgba(255, 90, 54, .45),
        var(--brand)
    );
}
.data-chart__bar:hover { filter: brightness(1.15); }
.data-chart__bar span { position: absolute; bottom: calc(100% + 6px); left: 50%; display: none; padding: 4px 6px; border-radius: 6px; background: #020408; font-size: 9px; white-space: nowrap; transform: translateX(-50%); }
.data-chart__bar:hover span { display: block; }
.data-chart__empty { margin: auto; color: var(--muted); }
.segmented-control { display: flex; padding: 3px; border: 1px solid var(--line); border-radius: 9px; background: var(--surface); }
.segmented-control a { padding: 6px 9px; border-radius: 6px; color: var(--muted); font-size: 10px; font-weight: 800; }
.segmented-control a.is-active { background: var(--raised); color: var(--ink); }

/* Question bank */
.active-filter-row { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 14px; }
.active-filter-row a { padding: 5px 9px; border: 1px solid var(--line); border-radius: 99px; color: #bdc7d4; font-size: 11px; }
.active-filter-row__clear { color: var(--brand-2)!important; }
.question-browser { display: grid; grid-template-columns: 260px minmax(0,1fr); align-items: start; gap: 16px; }
.filter-panel { position: sticky; top: 96px; max-height: calc(100vh - 116px); overflow-y: auto; padding: 17px; border: 1px solid var(--line); border-radius: 15px; background: var(--card); scrollbar-width: thin; }
.filter-panel__mobile-head { display: none; }
.filter-search label { display: block; margin-bottom: 7px; color: var(--muted); font-size: 11px; }
.filter-search > div { position: relative; }
.filter-search svg { position: absolute; z-index: 1; top: 50%; left: 11px; width: 17px; fill: none; stroke: var(--muted); transform: translateY(-50%); }
.filter-search input { width: 100%; min-height: 42px; padding: 9px 10px 9px 35px; border: 1px solid var(--line); border-radius: 9px; background: #0c121d; color: var(--ink); }
.filter-fields { margin-top: 15px; }
.filter-panel__actions { position: sticky; bottom: -17px; display: grid; grid-template-columns: 1fr 1.3fr; gap: 8px; margin: 18px -17px -17px; padding: 13px 17px; border-top: 1px solid var(--line); background: var(--card); }
.filter-mobile-button { display: none; }
.question-browser__results { min-width: 0; }
.results-toolbar { display: flex; min-height: 48px; align-items: center; justify-content: space-between; gap: 15px; margin-bottom: 10px; }
.results-toolbar p { margin: 0; color: var(--muted); }
.results-toolbar p strong { color: var(--ink); }
.results-toolbar label { display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 11px; }
.results-toolbar select { padding: 7px 9px; border: 1px solid var(--line); border-radius: 8px; background: var(--card); color: var(--ink); }
.question-list-card { margin-bottom: 10px; padding: 19px; border: 1px solid var(--line); border-radius: 14px; background: var(--card); transition: border-color .18s ease, transform .18s ease; }
.question-list-card:hover { border-color: #3c4a60; transform: translateY(-1px); }
.question-list-card__top, .question-list-card__footer { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.question-id { color: var(--brand-2); font-size: 11px; font-weight: 900; letter-spacing: .05em; text-transform: uppercase; }
.question-list-card__meta { display: flex; flex-wrap: wrap; gap: 7px 15px; margin: 12px 0; color: #7f8ca0; font-size: 11px; }
.question-list-card__meta span + span::before { margin-right: 15px; color: #3d495c; content: "•"; }
.question-list-card__statement { color: #d8dfe9; font-size: 16px; line-height: 1.65; }
.question-state { font-size: 11px; }
.pagination { display: flex; align-items: center; justify-content: center; gap: 14px; margin-top: 24px; }
.pagination > a, .pagination > span:not(.pagination__status) { display: grid; width: 38px; height: 38px; place-items: center; border: 1px solid var(--line); border-radius: 9px; }
.pagination .is-disabled { opacity: .35; }
.pagination__status { color: var(--muted); font-size: 11px; }
.inline-empty { display: grid; min-height: 110px; place-items: center; padding: 20px; border: 1px dashed #344157; border-radius: 12px; color: var(--muted); text-align: center; }
.empty-state { display: grid; min-height: 260px; place-items: center; padding: 35px; border: 1px dashed #344157; border-radius: 15px; color: var(--muted); text-align: center; }
.empty-state__icon { font-size: 30px; }
.empty-state h2 { color: var(--ink); }

.question-detail-heading { display: flex; align-items: center; justify-content: space-between; gap: 15px; margin-bottom: 17px; }
.question-detail-heading__actions { display: flex; gap: 8px; }
.question-detail-layout { display: grid; grid-template-columns: minmax(0,880px) minmax(220px,310px); align-items: start; gap: 16px; }
.question-panel { overflow: hidden; border: 1px solid var(--line); border-radius: 17px; background: var(--card); }
.question-panel__header { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 19px 22px; border-bottom: 1px solid var(--line); background: rgba(14,20,32,.6); }
.question-metadata { display: flex; gap: 22px; }
.question-metadata span { display: grid; }
.question-metadata small { color: var(--muted); font-size: 9px; text-transform: uppercase; }
.question-metadata strong { font-size: 12px; }
.question-context { display: flex; flex-wrap: wrap; gap: 8px; padding: 20px 24px 0; color: var(--muted); font-size: 12px; }
.question-context strong { color: #cbd4df; }
.question-statement { padding: 18px 24px; color: #e2e7ef; font-size: 17px; line-height: 1.7; }
.question-statement p:last-child { margin-bottom: 0; }
.question-passage { margin: 18px 24px 0; padding: 18px; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(255, 255, 255, .025); line-height: 1.65; }
.question-passage h3 { margin-top: 0; }
.question-asset { margin: 18px 24px; }
.question-passage .question-asset { margin-inline: 0; }
.question-asset img { display: block; width: auto; max-width: 100%; height: auto; border-radius: 8px; }
.question-asset figcaption, .question-passage small, .question-explanation small { display: block; margin-top: 8px; color: var(--muted); }
.question-explanation { margin-top: 18px; padding: 18px; border-left: 3px solid var(--brand); background: rgba(255, 90, 54, .06); }
.question-explanation h3 { margin-top: 0; }
.answer-form { padding: 0 24px 24px; }
.alternative { display: grid; min-height: 58px; grid-template-columns: 36px 1fr 24px; align-items: center; gap: 12px; margin-top: 9px; padding: 10px 13px; border: 1px solid var(--line); border-radius: 11px; background: rgba(14,20,32,.5); cursor: pointer; transition: border .16s, background .16s; }
.alternative:hover, .alternative:has(input:checked) { border-color: rgba(255,90,54,.5); background: rgba(255,90,54,.065); }
.alternative input { position: absolute; opacity: 0; pointer-events: none; }
.alternative__letter { display: grid; width: 34px; height: 34px; place-items: center; border: 1px solid #405069; border-radius: 9px; color: #bdc7d5; font-size: 12px; font-weight: 900; }
.alternative.is-correct { border-color: rgba(46,204,113,.5); background: rgba(46,204,113,.08); }
.alternative.is-correct .alternative__letter { border-color: var(--success); color: var(--success); }
.alternative.is-incorrect { border-color: rgba(255,77,90,.5); background: rgba(255,77,90,.08); }
.alternative.is-incorrect .alternative__letter { border-color: var(--danger); color: var(--danger); }
.alternative__state { font-size: 18px; font-weight: 900; }
.question-submit-bar { display: flex; align-items: center; justify-content: space-between; gap: 15px; margin-top: 18px; padding-top: 17px; border-top: 1px solid var(--line); }
.question-submit-bar p { margin: 0; color: var(--muted); font-size: 11px; }
.answer-feedback { margin: 0 24px 18px; padding: 15px; border: 1px solid var(--line); border-radius: 12px; }
.answer-feedback--correct { border-color: rgba(46,204,113,.42); background: rgba(46,204,113,.07); }
.answer-feedback--incorrect { border-color: rgba(255,77,90,.42); background: rgba(255,77,90,.07); }
.answer-feedback--void { border-color: rgba(245,196,81,.42); background: rgba(245,196,81,.07); }
.answer-feedback__headline { display: flex; align-items: center; gap: 13px; }
.answer-feedback__icon { display: grid; width: 35px; height: 35px; place-items: center; border-radius: 50%; background: rgba(255,255,255,.06); font-size: 20px; font-weight: 900; }
.answer-feedback p { margin: 3px 0 0; color: var(--muted); font-size: 12px; }
.explanation { margin: 0 24px 24px; padding: 20px; border: 1px solid rgba(24,87,201,.32); border-radius: 13px; background: rgba(24,87,201,.07); }
.explanation__heading { display: flex; align-items: center; gap: 13px; margin-bottom: 14px; }
.explanation h2 { margin: 3px 0 0; font-size: 19px; }
.rich-text { color: #cfd7e3; line-height: 1.7; }
.question-side { display: grid; gap: 13px; }
.metadata-list { margin: 0; }
.metadata-list > div { display: grid; grid-template-columns: 80px 1fr; gap: 10px; padding: 10px 0; border-bottom: 1px solid var(--line); }
.metadata-list > div:last-child { border-bottom: 0; }
.metadata-list dt { color: var(--muted); font-size: 10px; }
.metadata-list dd { margin: 0; font-size: 12px; font-weight: 750; text-align: right; }
.next-question-card h2 { margin: 8px 0; }
.next-question-card p { color: var(--muted); }
.report-link { color: var(--muted); font-size: 11px; text-align: center; }

/* Notebooks */
.notebook-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 13px; }
.notebook-card { min-height: 210px; padding: 20px; border: 1px solid var(--line); border-radius: 15px; background: var(--card); }
.notebook-card--errors { border-color: rgba(255,77,90,.28); background: linear-gradient(145deg,rgba(255,77,90,.08),var(--card) 55%); }
.notebook-card__top, .notebook-card__footer { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.notebook-card__icon { display: grid; width: 39px; height: 39px; place-items: center; border-radius: 10px; background: var(--raised); color: var(--brand-2); }
.notebook-card h2 { margin: 22px 0 7px; }
.notebook-card p { min-height: 42px; color: var(--muted); }
.notebook-card__footer { padding-top: 14px; border-top: 1px solid var(--line); color: var(--muted); font-size: 11px; }
.notebook-card__footer a { color: var(--brand-2); font-weight: 800; }
.notebook-summary { display: grid; grid-template-columns: repeat(3,1fr); gap: 10px; margin-bottom: 18px; }
.notebook-summary article { padding: 15px; border: 1px solid var(--line); border-radius: 12px; background: var(--card); }
.notebook-summary span { display: block; color: var(--muted); font-size: 11px; }
.notebook-summary strong { font-size: 23px; }
.notebook-question-wrap { margin-bottom: 13px; }
.remove-item-button { display: block; margin: -4px 10px 0 auto; border: 0; background: transparent; color: #ff8b94; cursor: pointer; font-size: 11px; }

/* Simulations */
.simulation-intro { display: grid; grid-template-columns: 50px 1fr auto; align-items: center; gap: 17px; margin-bottom: 25px; padding: 20px; border: 1px solid rgba(24,87,201,.28); border-radius: 15px; background: linear-gradient(100deg,rgba(24,87,201,.1),var(--card)); }
.simulation-intro__icon { display: grid; width: 48px; height: 48px; place-items: center; border-radius: 13px; background: rgba(24,87,201,.15); color: #75a8ff; font-size: 24px; }
.simulation-intro h2 { margin: 4px 0; }
.simulation-intro p { margin: 0; color: var(--muted); }
.simulation-intro__facts { display: flex; gap: 17px; }
.simulation-intro__facts span { display: grid; color: var(--muted); font-size: 10px; text-align: center; }
.simulation-intro__facts strong { display: grid; width: 28px; height: 28px; place-items: center; margin: 0 auto 5px; border-radius: 50%; background: var(--raised); color: var(--ink); }
.section-title { display: flex; justify-content: space-between; margin-bottom: 13px; }
.section-title h2 { margin: 4px 0 0; }
.simulation-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 13px; }
.simulation-card { padding: 20px; border: 1px solid var(--line); border-radius: 15px; background: var(--card); }
.simulation-card__head, .simulation-card__footer { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.simulation-card__mark { display: grid; width: 38px; height: 38px; place-items: center; border-radius: 10px; background: var(--raised); color: var(--brand-2); font-size: 11px; font-weight: 900; }
.simulation-card h2 { margin: 18px 0 8px; }
.simulation-card__meta { display: flex; gap: 10px; color: var(--muted); font-size: 11px; }
.simulation-card__stats { display: grid; grid-template-columns: repeat(3,1fr); margin: 17px 0; padding: 13px 0; border-block: 1px solid var(--line); }
.simulation-card__stats div { text-align: center; }
.simulation-card__stats dt { color: var(--muted); font-size: 9px; }
.simulation-card__stats dd { margin: 3px 0 0; font-weight: 800; }
.simulation-card__footer small { color: var(--muted); }
.simulation-form-layout { display: grid; grid-template-columns: 1fr 330px; align-items: start; gap: 16px; }
.simulation-form-card { padding: 24px; border: 1px solid var(--line); border-radius: 16px; background: var(--card); }
.simulation-form-card h2 { margin-bottom: 7px; }
.simulation-form-card > p { color: var(--muted); }
.simulation-form-card ul { padding-left: 20px; }
.simulation-form-card input[type="checkbox"] { accent-color: var(--brand); }
.simulation-runner { max-width: 1400px; margin-inline: auto; }
.runner-header { position: sticky; z-index: 55; top: 90px; display: grid; grid-template-columns: 1fr minmax(220px,.7fr) auto; align-items: center; gap: 22px; margin-bottom: 14px; padding: 15px 18px; border: 1px solid var(--line); border-radius: 14px; background: rgba(20,28,42,.94); backdrop-filter: blur(15px); }
.runner-header__title { display: flex; align-items: center; gap: 12px; }
.runner-header__title h1 { margin: 0; font-size: 17px; }
.runner-header__title p { margin: 2px 0 0; color: var(--muted); font-size: 10px; }
.runner-header__progress > span { display: block; margin-bottom: 7px; color: var(--muted); font-size: 10px; }
.runner-timer { display: flex; align-items: center; gap: 9px; padding: 8px 12px; border: 1px solid rgba(245,196,81,.25); border-radius: 10px; background: rgba(245,196,81,.07); }
.runner-timer__icon { color: var(--warning); font-size: 20px; }
.runner-timer small { display: block; color: var(--muted); font-size: 8px; }
.runner-timer strong { color: var(--warning); font-variant-numeric: tabular-nums; }
.runner-layout { display: grid; grid-template-columns: 230px minmax(0,1fr); align-items: start; gap: 14px; }
.question-palette { position: sticky; top: 195px; padding: 17px; border: 1px solid var(--line); border-radius: 14px; background: var(--card); }
.question-palette h2 { margin: 4px 0 15px; }
.question-palette__legend { display: flex; gap: 12px; margin-bottom: 13px; color: var(--muted); font-size: 9px; }
.question-palette__legend span { display: flex; align-items: center; gap: 5px; }
.question-palette__legend i { width: 8px; height: 8px; border-radius: 3px; background: var(--line); }
.question-palette__legend i.is-answered { background: var(--success); }
.question-palette__grid { display: grid; grid-template-columns: repeat(5,1fr); gap: 5px; }
.question-palette__grid button { aspect-ratio: 1; border: 1px solid var(--line); border-radius: 7px; background: var(--surface); color: var(--muted); cursor: pointer; font-size: 10px; }
.question-palette__grid button.is-answered { border-color: rgba(46,204,113,.4); color: var(--success); }
.question-palette__grid button.is-current { outline: 2px solid var(--brand); }
.palette-summary { display: grid; grid-template-columns: 1fr 1fr; margin: 14px 0; }
.palette-summary div { text-align: center; }
.palette-summary dt { color: var(--muted); font-size: 9px; }
.palette-summary dd { margin: 2px 0; font-weight: 800; }
.runner-question { border: 1px solid var(--line); border-radius: 16px; background: var(--card); }
.runner-question__head { display: flex; align-items: center; justify-content: space-between; padding: 18px 22px; border-bottom: 1px solid var(--line); }
.save-status { color: var(--muted); font-size: 10px; }
.runner-question .answer-form { padding-top: 0; }
.runner-question__save { display: flex; align-items: center; justify-content: space-between; gap: 15px; margin-top: 16px; }
.runner-question__save > span { color: var(--muted); font-size: 10px; }
.runner-navigation { display: flex; align-items: center; justify-content: space-between; margin-top: 12px; padding: 12px; border: 1px solid var(--line); border-radius: 12px; background: var(--card); }
.result-hero { display: flex; align-items: center; justify-content: space-between; gap: 25px; margin-bottom: 16px; padding: 26px; border: 1px solid rgba(255,90,54,.28); border-radius: 17px; background: radial-gradient(circle at 90% 20%,rgba(255,90,54,.13),transparent 35%),var(--card); }
.result-hero h1 { margin: 8px 0; }
.result-hero p { margin: 0; color: var(--muted); }
.result-score { min-width: 150px; text-align: right; }
.result-score span, .result-score small { display: block; color: var(--muted); }
.result-score strong { display: block; color: var(--brand-2); font-size: 43px; }
.result-metrics { display: grid; grid-template-columns: repeat(6,1fr); gap: 9px; margin-bottom: 14px; }
.result-metrics article { display: flex; align-items: center; gap: 10px; min-width: 0; padding: 14px; border: 1px solid var(--line); border-radius: 12px; background: var(--card); }
.result-metrics__icon { display: grid; width: 28px; height: 28px; flex: 0 0 auto; place-items: center; border-radius: 8px; background: var(--raised); color: var(--muted); }
.result-metrics__icon--success { color: var(--success); }
.result-metrics__icon--danger { color: var(--danger); }
.result-metrics__icon--warning { color: var(--warning); }
.result-metrics small { display: block; color: var(--muted); font-size: 8px; }
.result-metrics strong { font-size: 18px; }
.result-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 14px; }
.result-review { margin-top: 14px; }
.result-question-list { display: grid; gap: 8px; }
.result-question { border: 1px solid var(--line); border-radius: 11px; background: rgba(14,20,32,.5); }
.result-question summary { display: grid; grid-template-columns: 35px 1fr auto 18px; align-items: center; gap: 11px; padding: 13px; cursor: pointer; list-style: none; }
.result-question summary::-webkit-details-marker { display: none; }
.result-question__number { color: var(--brand-2); font-size: 11px; font-weight: 900; }
.result-question__summary { overflow: hidden; color: #cdd6e1; text-overflow: ellipsis; white-space: nowrap; }
.result-question__body { padding: 0 16px 17px; border-top: 1px solid var(--line); }
.result-actions { display: flex; justify-content: flex-end; gap: 9px; margin-top: 18px; }

/* Analytics */
.inline-filter { display: flex; align-items: center; gap: 8px; }
.inline-filter label { color: var(--muted); font-size: 10px; }
.inline-filter select { min-height: 40px; width: auto; }
.analytics-grid { display: grid; grid-template-columns: 1.35fr .65fr; gap: 14px; }
.analytics-grid__wide { min-width: 0; }
.analytics-table-panel { grid-column: 1/-1; }
.responsive-table { overflow-x: auto; }
.responsive-table table { width: 100%; border-collapse: collapse; }
.responsive-table th, .responsive-table td { padding: 12px; border-bottom: 1px solid var(--line); text-align: left; }
.responsive-table th { color: var(--muted); font-size: 9px; text-transform: uppercase; }
.responsive-table td { font-size: 12px; }
.table-score { padding: 5px 8px; border-radius: 7px; background: var(--raised); }
.rank-list { display: grid; gap: 9px; margin: 0; padding: 0; list-style: none; }
.rank-list li { display: grid; grid-template-columns: 30px 1fr auto; align-items: center; gap: 10px; padding: 11px; border: 1px solid var(--line); border-radius: 10px; }
.rank-list li > span { display: grid; width: 28px; height: 28px; place-items: center; border-radius: 8px; background: var(--raised); color: var(--brand-2); font-size: 10px; font-weight: 900; }
.rank-list li div { display: grid; }
.rank-list small { color: var(--muted); }
.split-breakdown { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.split-breakdown h3 { color: var(--muted); font-size: 11px; text-transform: uppercase; }
.split-breakdown p { display: flex; justify-content: space-between; gap: 12px; padding-bottom: 7px; border-bottom: 1px solid var(--line); }

/* Dialogs */
.app-dialog { width: min(500px,calc(100% - 28px)); padding: 25px; border: 1px solid #3c4a60; border-radius: 17px; background: var(--card); box-shadow: var(--shadow); }
.app-dialog::backdrop { background: rgba(0,0,0,.72); backdrop-filter: blur(4px); }
.dialog-close-form { position: absolute; top: 12px; right: 12px; }
.dialog-close-form .icon-button { border: 0; background: transparent; font-size: 22px; }
.app-dialog__heading { padding-right: 35px; }
.app-dialog__heading h2 { margin: 7px 0; }
.app-dialog__heading p { color: var(--muted); }
.dialog-actions { display: flex; justify-content: flex-end; gap: 9px; margin-top: 20px; }
.dialog-secondary-link { display: block; margin-top: 13px; text-align: center; }

@media (max-width: 1180px) {
  .metric-grid--five { grid-template-columns: repeat(3,1fr); }
  .result-metrics { grid-template-columns: repeat(3,1fr); }
  .simulation-grid { grid-template-columns: repeat(2,1fr); }
}

@media (max-width: 1023px) {
  .app-sidebar { transform: translateX(-102%); transition: transform .22s ease; box-shadow: var(--shadow); }
  .app-sidebar.is-open { transform: translateX(0); }
  .sidebar-close, .drawer-toggle { display: grid; }
  .app-column { margin-left: 0; }
  .app-main { padding-inline: 22px; }
  .hero__grid { grid-template-columns: 1fr; gap: 45px; }
  .hero__content { max-width: 760px; }
  .hero-dashboard { max-width: 680px; transform: none; }
  .feature-grid { grid-template-columns: repeat(2,1fr); }
  .feature-card--wide { grid-column: span 2; }
  .method-grid, .faq-grid { gap: 40px; }
  .question-detail-layout { grid-template-columns: minmax(0,1fr) 260px; }
  .dashboard-grid { grid-template-columns: 1fr 1fr; }
  .dashboard-grid__chart { grid-column: 1/-1; }
  .result-grid { grid-template-columns: 1fr; }
  .runner-layout { grid-template-columns: 1fr; }
  .question-palette { position: static; }
  .question-palette__grid { grid-template-columns: repeat(10,1fr); }
}

@media (max-width: 767px) {
  .container { width: min(100% - 30px,1180px); }
  .public-header__inner { min-height: 66px; }
  .public-menu-toggle { display: grid; }
  .public-nav { position: absolute; top: 66px; right: 15px; left: 15px; display: none; align-items: stretch; flex-direction: column; gap: 3px; padding: 14px; border: 1px solid var(--line); border-radius: 14px; background: rgba(14,20,32,.98); box-shadow: var(--shadow); }
  .public-nav.is-open { display: flex; }
  .public-nav > a { padding: 10px; }
  .public-nav__actions { display: grid; grid-template-columns: 1fr 1fr; margin: 8px 0 0; }
  .hero { min-height: auto; }
  .hero__grid { min-height: auto; padding-block: 58px 75px; }
  .hero__content h1 { font-size: clamp(43px,14vw,65px); }
  .hero__lead { font-size: 16px; }
  .hero__actions .button { width: 100%; }
  .hero-dashboard { padding: 16px; }
  .career-strip .container { align-items: flex-start; flex-direction: column; gap: 13px; padding-block: 21px; }
  .career-strip__items { justify-content: flex-start; font-size: 12px; }
  .section { padding-block: 70px; }
  .feature-grid, .method-grid, .faq-grid { grid-template-columns: 1fr; }
  .feature-card--wide { grid-column: auto; }
  .feature-card { min-height: auto; }
  .public-footer__grid { grid-template-columns: 1fr 1fr; }
  .public-footer__grid > div:first-child { grid-column: 1/-1; }
  .public-footer__bottom { align-items: flex-start; flex-direction: column; gap: 7px; }
  .auth-shell { display: block; }
  .auth-showcase { display: none; }
  .auth-panel { min-height: 100vh; padding: 22px 18px 45px; }
  .auth-card__brand { display: inline-flex; }
  .app-topbar { min-height: 64px; padding-inline: 15px; }
  .app-topbar__context span { display: none; }
  .app-topbar__context strong { font-size: 14px; }
  .topbar-streak__label { display: none; }
  .app-main { padding: 20px 15px 90px; }
  .mobile-bottom-nav { position: fixed; z-index: 75; right: 0; bottom: 0; left: 0; display: grid; height: calc(64px + env(safe-area-inset-bottom)); grid-template-columns: repeat(5,1fr); padding: 6px 4px env(safe-area-inset-bottom); border-top: 1px solid var(--line); background: rgba(10,15,24,.96); backdrop-filter: blur(18px); }
  .mobile-bottom-nav a, .mobile-bottom-nav button { display: grid; place-items: center; gap: 2px; padding: 0; border: 0; background: transparent; color: #718095; font-size: 9px; }
  .mobile-bottom-nav svg { width: 21px; fill: none; stroke: currentColor; stroke-width: 1.7; }
  .mobile-bottom-nav .is-active { color: var(--brand-2); }
  .page-heading { align-items: stretch; flex-direction: column; }
  .page-heading .button { width: 100%; }
  .page-heading--dashboard h1 { font-size: 38px; }
  .metric-grid, .metric-grid--five { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .metric-card { min-height: 135px; padding: 16px; }
  .metric-card__icon { display: none; }
  .dashboard-grid { grid-template-columns: 1fr; }
  .dashboard-grid__chart { grid-column: auto; min-height: 320px; }
  .streak-panel { grid-column: auto; grid-template-columns: 42px 1fr; }
  .week-dots { grid-column: 1/-1; justify-content: center; }
  .panel { padding: 17px; }
  .panel__header { align-items: flex-start; }
  .data-chart { height: 220px; }
  .question-browser { display: block; }
  .filter-mobile-button { display: inline-flex; }
  .filter-panel { position: fixed; z-index: 86; inset: auto 0 0; display: none; max-height: 88vh; padding: 18px; border-radius: 18px 18px 0 0; }
  .filter-panel.is-open { display: block; }
  .filter-panel__mobile-head { display: flex; align-items: center; justify-content: space-between; }
  .filter-panel__mobile-head h2 { margin: 4px 0; }
  .filter-panel__actions { bottom: -18px; margin: 18px -18px -18px; padding-bottom: calc(13px + env(safe-area-inset-bottom)); }
  .question-list-card { padding: 16px; }
  .question-list-card__footer { align-items: flex-end; }
  .question-detail-heading { align-items: flex-start; flex-direction: column; }
  .question-detail-heading__actions { width: 100%; }
  .question-detail-heading__actions > * { flex: 1; }
  .question-detail-heading__actions .button { width: 100%; }
  .question-detail-layout { grid-template-columns: 1fr; }
  .question-panel__header { align-items: flex-start; flex-direction: column; }
  .question-metadata { width: 100%; justify-content: space-between; }
  .question-context { padding: 17px 17px 0; }
  .question-statement { padding: 15px 17px; font-size: 16px; }
  .answer-form { padding: 0 14px 17px; }
  .alternative { min-height: 60px; padding-inline: 10px; }
  .answer-feedback, .explanation { margin-inline: 14px; }
  .question-submit-bar { position: sticky; z-index: 30; bottom: 62px; margin: 18px -14px -17px; padding: 12px 14px calc(12px + env(safe-area-inset-bottom)); background: rgba(20,28,42,.97); }
  .question-submit-bar p { display: none; }
  .question-submit-bar .button { width: 100%; }
  .question-side { grid-template-columns: 1fr; }
  .notebook-grid, .simulation-grid { grid-template-columns: 1fr; }
  .notebook-summary { grid-template-columns: repeat(3,1fr); }
  .simulation-intro { grid-template-columns: 45px 1fr; }
  .simulation-intro__facts { grid-column: 1/-1; justify-content: center; }
  .simulation-form-layout { grid-template-columns: 1fr; }
  .runner-header { top: 72px; grid-template-columns: 1fr auto; gap: 10px; }
  .runner-header__progress { grid-column: 1/-1; }
  .runner-header__title .status-badge { display: none; }
  .runner-timer { padding: 7px 9px; }
  .question-palette { display: none; }
  .runner-question__head { padding: 15px; }
  .runner-question__save { align-items: stretch; flex-direction: column; }
  .runner-navigation { position: sticky; z-index: 35; bottom: 65px; }
  .result-hero { align-items: flex-start; flex-direction: column; }
  .result-score { text-align: left; }
  .result-metrics { grid-template-columns: repeat(2,1fr); }
  .result-question summary { grid-template-columns: 28px 1fr auto; }
  .result-question summary > span:last-child { display: none; }
  .result-actions { flex-direction: column; }
  .analytics-grid { grid-template-columns: 1fr; }
  .analytics-table-panel { grid-column: auto; }
  .filter-fields--inline { grid-template-columns: 1fr; }
  .inline-filter { width: 100%; justify-content: space-between; }
  .inline-filter select { flex: 1; }
}

@media (max-width: 430px) {
  .hero-dashboard__metrics { grid-template-columns: 1fr 1fr; }
  .metric-card > strong { font-size: 25px; }
  .metric-card > span { padding-right: 0; font-size: 10px; }
  .question-list-card__top, .question-list-card__footer { align-items: flex-start; flex-direction: column; }
  .question-list-card__footer .button { width: 100%; }
  .question-metadata { gap: 10px; }
  .notebook-summary { grid-template-columns: 1fr; }
  .result-metrics { grid-template-columns: 1fr 1fr; }
  .result-metrics article { padding: 11px; }
  .review-topic { grid-template-columns: 30px 1fr 16px; }
  .review-topic__score { display: none; }
  .split-breakdown { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto!important; transition-duration: .01ms!important; animation-duration: .01ms!important; animation-iteration-count: 1!important; }
}