/* MocksPTE design system: tokens, base, layout and shared components. */

:root {
  /* Brand */
  --color-primary: #c4410f;
  --color-primary-hover: #a8360b;
  --color-primary-active: #8f2e0a;
  --color-primary-soft: #fdeadf;
  --color-primary-softer: #fff5ef;
  --color-secondary: #1c2552;
  --color-secondary-hover: #273270;
  --color-secondary-soft: #e8eaf6;
  --color-accent: #f2b233;
  --color-accent-soft: #fdf1d4;

  /* Surfaces */
  --color-bg: #fbf8f4;
  --color-bg-soft: #f4eee6;
  --color-surface: #ffffff;
  --color-surface-elevated: #ffffff;
  --color-surface-sunken: #f7f2ec;
  --color-ink-band: #1c2552;

  /* Text */
  --color-text: #161a33;
  --color-text-secondary: #3b4163;
  --color-text-muted: #5d6280;
  --color-text-inverse: #ffffff;
  --color-text-inverse-muted: #c6cae3;

  /* Lines */
  --color-border: #e3d9cc;
  --color-border-strong: #cbbfae;
  --color-divider: #eee6db;

  /* States */
  --color-success: #17784a;
  --color-success-soft: #e2f3e9;
  --color-warning: #8f5400;
  --color-warning-soft: #fff1d1;
  --color-error: #b3261e;
  --color-error-soft: #fde7e5;
  --color-info: #1f58b8;
  --color-info-soft: #e5edfb;
  --color-focus: #1f58b8;
  --color-disabled-bg: #ece6de;
  --color-disabled-text: #8c8a86;
  --color-highlight: #ffe58a;

  /* Skill palette (used for small contextual accents only) */
  --skill-speaking: #b8325f;
  --skill-speaking-soft: #fbe6ee;
  --skill-writing: #97580a;
  --skill-writing-soft: #fcefd9;
  --skill-reading: #2555b8;
  --skill-reading-soft: #e4ecfb;
  --skill-listening: #0b766e;
  --skill-listening-soft: #dcf2ef;

  /* Typography */
  --font-display: 'Bricolage Grotesque', 'Segoe UI', system-ui, sans-serif;
  --font-text: 'Figtree', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-mono: ui-monospace, 'SFMono-Regular', Consolas, monospace;
  --fs-display: clamp(2.35rem, 1.55rem + 3.2vw, 3.75rem);
  --fs-h1: clamp(2rem, 1.5rem + 2vw, 2.9rem);
  --fs-h2: clamp(1.55rem, 1.3rem + 1vw, 2.1rem);
  --fs-h3: 1.3rem;
  --fs-h4: 1.075rem;
  --fs-body-lg: 1.175rem;
  --fs-body: 1.0625rem;
  --fs-body-sm: 0.9375rem;
  --fs-label: 0.875rem;
  --fs-caption: 0.8125rem;
  --fs-button: 1rem;
  --lh-tight: 1.15;
  --lh-snug: 1.3;
  --lh-body: 1.6;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-pill: 999px;

  /* Shadows */
  --shadow-card: 0 1px 2px rgba(28, 37, 82, 0.06), 0 2px 8px rgba(28, 37, 82, 0.04);
  --shadow-dropdown: 0 12px 32px rgba(28, 37, 82, 0.14), 0 2px 6px rgba(28, 37, 82, 0.06);
  --shadow-modal: 0 24px 64px rgba(22, 26, 51, 0.24);

  /* Layout */
  --container: 1180px;
  --container-narrow: 760px;
  --container-wide: 1320px;
  --gutter: clamp(1rem, 0.6rem + 1.6vw, 2rem);
  --header-h: 68px;

  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
  --duration: 160ms;
}

/* ---------- Reset and base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: calc(var(--header-h) + var(--space-4)); }
body {
  margin: 0;
  font-family: var(--font-text);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--color-text);
  background: var(--color-bg);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, svg, video { max-width: 100%; height: auto; }
img { display: block; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
a { color: var(--color-primary); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--color-primary-hover); }
h1, h2, h3, h4 { font-family: var(--font-display); color: var(--color-text); margin: 0 0 var(--space-4); letter-spacing: -0.015em; }
h1 { font-size: var(--fs-h1); line-height: var(--lh-tight); font-weight: 700; }
h2 { font-size: var(--fs-h2); line-height: var(--lh-snug); font-weight: 700; }
h3 { font-size: var(--fs-h3); line-height: var(--lh-snug); font-weight: 650; }
h4 { font-size: var(--fs-h4); line-height: var(--lh-snug); font-weight: 650; }
p { margin: 0 0 var(--space-4); }
ul, ol { margin: 0 0 var(--space-4); padding-left: 1.25rem; }
li + li { margin-top: var(--space-1); }
hr { border: 0; border-top: 1px solid var(--color-divider); margin: var(--space-8) 0; }
:focus-visible { outline: 3px solid var(--color-focus); outline-offset: 2px; border-radius: 4px; }
::selection { background: var(--color-highlight); color: var(--color-text); }
.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: absolute; left: var(--space-4); top: -100px; z-index: 100; background: var(--color-secondary); color: #fff; padding: var(--space-2) var(--space-4); border-radius: var(--radius-sm); }
.skip-link:focus { top: var(--space-2); color: #fff; }
.icon { width: 1.25em; height: 1.25em; flex: none; stroke: currentColor; fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; vertical-align: -0.25em; }
.icon-sm { width: 1em; height: 1em; }
.icon-lg { width: 1.5em; height: 1.5em; }
[hidden] { display: none !important; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}

/* ---------- Layout ---------- */
.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: var(--gutter); }
.container-narrow { max-width: calc(var(--container-narrow) + 2 * var(--gutter)); }
.container-wide { max-width: var(--container-wide); }
.section { padding-block: clamp(var(--space-12), 6vw, var(--space-20)); }
.section-tight { padding-block: clamp(var(--space-8), 4vw, var(--space-12)); }
.section-soft { background: var(--color-bg-soft); }
.section-white { background: var(--color-surface); }
.section-ink { background: var(--color-ink-band); color: var(--color-text-inverse); }
.section-ink h2, .section-ink h3 { color: #fff; }
.section-ink p { color: var(--color-text-inverse-muted); }
.section-head { max-width: 680px; margin-bottom: var(--space-8); }
.section-head.center { margin-inline: auto; text-align: center; }
.section-head p { color: var(--color-text-secondary); font-size: var(--fs-body-lg); margin-bottom: 0; }
.eyebrow { display: inline-flex; align-items: center; gap: var(--space-2); font-size: var(--fs-label); font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--color-primary); margin-bottom: var(--space-3); }
.lede { font-size: var(--fs-body-lg); color: var(--color-text-secondary); max-width: 62ch; }
.muted { color: var(--color-text-muted); }
.small { font-size: var(--fs-body-sm); }
.caption { font-size: var(--fs-caption); color: var(--color-text-muted); }
.grid { display: grid; gap: var(--space-6); }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr)); }
.stack > * + * { margin-top: var(--space-4); }
.cluster { display: flex; flex-wrap: wrap; gap: var(--space-3); align-items: center; }
.split { display: grid; gap: var(--space-10); align-items: center; }
@media (min-width: 900px) { .split { grid-template-columns: 1.05fr 0.95fr; } .split-reverse > :first-child { order: 2; } }

/* ---------- Brand logo ---------- */
.logo { display: inline-flex; align-items: center; gap: 0.45rem; text-decoration: none; color: var(--color-text); font-family: var(--font-display); font-weight: 700; font-size: 1.35rem; letter-spacing: -0.03em; line-height: 1; }
.logo:hover { color: var(--color-text); }
.logo-mark { width: 34px; height: 34px; flex: none; }
.logo-text b { color: var(--color-primary); font-weight: 800; }
.logo-inverse { color: #fff; }
.logo-inverse:hover { color: #fff; }
.logo-inverse .logo-text b { color: var(--color-accent); }

/* ---------- Header and navigation ---------- */
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(251, 248, 244, 0.94); backdrop-filter: saturate(1.4) blur(8px); border-bottom: 1px solid transparent; transition: border-color var(--duration) var(--ease); }
.site-header.is-scrolled { border-bottom-color: var(--color-border); }
.header-inner { display: flex; align-items: center; gap: var(--space-6); height: var(--header-h); }
.nav { display: none; flex: 1; align-items: center; gap: var(--space-1); }
.nav-list { display: flex; align-items: center; gap: var(--space-1); list-style: none; margin: 0; padding: 0; }
.nav-list li + li { margin-top: 0; }
.nav-link { display: inline-flex; align-items: center; gap: var(--space-1); padding: var(--space-2) var(--space-3); border-radius: var(--radius-sm); color: var(--color-text-secondary); font-weight: 600; font-size: 0.975rem; text-decoration: none; background: none; border: 0; line-height: 1.4; }
.nav-link:hover, .nav-link[aria-expanded='true'] { color: var(--color-text); background: var(--color-bg-soft); }
.nav-link[aria-current='page'], .nav-link.is-active { color: var(--color-primary); box-shadow: inset 0 -2px 0 var(--color-primary); border-radius: 0; }
.nav-link .icon-sm { transition: transform var(--duration) var(--ease); }
.nav-link[aria-expanded='true'] .icon-sm { transform: rotate(180deg); }
.nav-item { position: relative; }
.nav-actions { margin-left: auto; display: flex; align-items: center; gap: var(--space-2); }
.mega { position: absolute; top: calc(100% + 10px); left: -12px; width: min(880px, 92vw); background: var(--color-surface-elevated); border: 1px solid var(--color-border); border-radius: var(--radius-lg); box-shadow: var(--shadow-dropdown); padding: var(--space-6); display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-6); }
.mega-sm { width: 300px; grid-template-columns: 1fr; padding: var(--space-3); gap: 0; }
.mega-col h3 { font-size: var(--fs-label); font-family: var(--font-text); text-transform: uppercase; letter-spacing: 0.06em; margin: 0 0 var(--space-2); }
.mega-col h3 a { color: inherit; text-decoration: none; display: inline-flex; align-items: center; gap: var(--space-2); }
.mega-col h3 a:hover { color: var(--color-primary); }
.mega-col ul { list-style: none; margin: 0; padding: 0; }
.mega-col li + li { margin-top: 0; }
.mega a.mega-link { display: block; padding: 0.3rem 0; color: var(--color-text-secondary); text-decoration: none; font-size: var(--fs-body-sm); }
.mega a.mega-link:hover { color: var(--color-primary); }
.mega-sm a.mega-link { padding: var(--space-2) var(--space-3); border-radius: var(--radius-sm); font-size: var(--fs-body); color: var(--color-text); }
.mega-sm a.mega-link span:not(.badge) { display: block; font-size: var(--fs-caption); color: var(--color-text-muted); }
.mega-sm a.mega-link:hover { background: var(--color-bg-soft); color: var(--color-text); }
.mega-foot { grid-column: 1 / -1; border-top: 1px solid var(--color-divider); padding-top: var(--space-4); display: flex; flex-wrap: wrap; gap: var(--space-4); justify-content: space-between; align-items: center; font-size: var(--fs-body-sm); }
.menu-toggle { margin-left: auto; display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px; border-radius: var(--radius-md); border: 1px solid var(--color-border); background: var(--color-surface); color: var(--color-text); }
.mobile-nav { position: fixed; inset: var(--header-h) 0 0 0; background: var(--color-bg); overflow-y: auto; padding: var(--space-4) var(--gutter) var(--space-12); z-index: 49; border-top: 1px solid var(--color-border); }
.mobile-nav details { border-bottom: 1px solid var(--color-divider); }
.mobile-nav summary, .mobile-nav .m-link { display: flex; align-items: center; justify-content: space-between; padding: var(--space-4) 0; font-weight: 700; font-size: 1.1rem; list-style: none; color: var(--color-text); text-decoration: none; cursor: pointer; }
.mobile-nav summary::-webkit-details-marker { display: none; }
.mobile-nav details[open] summary .icon { transform: rotate(180deg); }
.mobile-nav .m-link { border-bottom: 1px solid var(--color-divider); }
.mobile-nav .m-link[aria-current='page'] { color: var(--color-primary); }
.mobile-nav ul { list-style: none; padding: 0 0 var(--space-4); margin: 0; }
.mobile-nav ul a { display: block; padding: var(--space-2) 0; color: var(--color-text-secondary); text-decoration: none; }
.mobile-nav ul a[aria-current='page'] { color: var(--color-primary); font-weight: 700; }
.mobile-nav .m-group { font-size: var(--fs-caption); text-transform: uppercase; letter-spacing: 0.06em; font-weight: 700; color: var(--color-text-muted); margin-top: var(--space-3); }
.mobile-nav .btn { margin-top: var(--space-6); width: 100%; }
body.nav-open { overflow: hidden; }
@media (min-width: 1100px) {
  .nav { display: flex; }
  .menu-toggle, .mobile-nav { display: none !important; }
}
@media (max-width: 1439px) { .nav-actions .header-cta { display: none; } }
@media (max-width: 1319px) { .nav-progress span { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); } .nav-link { padding-inline: 0.6rem; } }

/* ---------- Buttons ---------- */
.btn { --btn-bg: var(--color-primary); --btn-fg: #fff; --btn-border: transparent; display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2); min-height: 46px; padding: 0.65rem 1.25rem; border-radius: var(--radius-md); border: 1.5px solid var(--btn-border); background: var(--btn-bg); color: var(--btn-fg); font-family: var(--font-text); font-size: var(--fs-button); font-weight: 700; line-height: 1.2; text-decoration: none; text-align: center; transition: background var(--duration) var(--ease), border-color var(--duration) var(--ease), color var(--duration) var(--ease), transform var(--duration) var(--ease); }
.btn:hover { background: var(--color-primary-hover); color: #fff; }
.btn:active { background: var(--color-primary-active); transform: translateY(1px); }
.btn-secondary { --btn-bg: var(--color-surface); --btn-fg: var(--color-text); --btn-border: var(--color-border-strong); }
.btn-secondary:hover { background: var(--color-bg-soft); color: var(--color-text); border-color: var(--color-text-muted); }
.btn-secondary:active { background: var(--color-surface-sunken); }
.btn-ink { --btn-bg: var(--color-secondary); }
.btn-ink:hover { background: var(--color-secondary-hover); }
.btn-ink:active { background: var(--color-secondary); }
.btn-text { --btn-bg: transparent; --btn-fg: var(--color-primary); min-height: 40px; padding-inline: var(--space-2); }
.btn-text:hover { background: var(--color-primary-softer); color: var(--color-primary-hover); }
.btn-text:active { background: var(--color-primary-soft); }
.btn-danger { --btn-bg: var(--color-surface); --btn-fg: var(--color-error); --btn-border: #e9b4af; }
.btn-danger:hover { background: var(--color-error-soft); color: var(--color-error); }
.btn-on-dark { --btn-bg: #fff; --btn-fg: var(--color-secondary); }
.btn-on-dark:hover { background: var(--color-accent-soft); color: var(--color-secondary); }
.btn-lg { min-height: 54px; padding: 0.85rem 1.6rem; font-size: 1.075rem; border-radius: 12px; }
.btn-sm { min-height: 38px; padding: 0.4rem 0.9rem; font-size: var(--fs-body-sm); }
.btn-block { width: 100%; }
.btn[disabled], .btn[aria-disabled='true'] { background: var(--color-disabled-bg); color: var(--color-disabled-text); border-color: transparent; cursor: not-allowed; transform: none; }
.btn.is-loading { position: relative; color: transparent !important; pointer-events: none; }
.btn.is-loading::after { content: ''; position: absolute; width: 18px; height: 18px; border-radius: 50%; border: 2px solid rgba(255, 255, 255, 0.5); border-top-color: #fff; animation: spin 0.7s linear infinite; }
.btn-secondary.is-loading::after { border-color: var(--color-border); border-top-color: var(--color-text); }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Badges and chips ---------- */
.badge { display: inline-flex; align-items: center; gap: 0.35rem; padding: 0.2rem 0.6rem; border-radius: var(--radius-pill); font-size: var(--fs-caption); font-weight: 700; line-height: 1.5; background: var(--color-bg-soft); color: var(--color-text-secondary); white-space: nowrap; }
.badge-primary { background: var(--color-primary-soft); color: var(--color-primary-active); }
.badge-success { background: var(--color-success-soft); color: var(--color-success); }
.badge-warning { background: var(--color-warning-soft); color: var(--color-warning); }
.badge-error { background: var(--color-error-soft); color: var(--color-error); }
.badge-info { background: var(--color-info-soft); color: var(--color-info); }
.badge-new { background: var(--color-accent-soft); color: #6d4300; }
.skill-tag { display: inline-flex; align-items: center; gap: 0.35rem; font-size: var(--fs-caption); font-weight: 700; padding: 0.15rem 0.55rem; border-radius: var(--radius-pill); }
.skill-tag::before { content: ''; width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
.skill-speaking { color: var(--skill-speaking); background: var(--skill-speaking-soft); }
.skill-writing { color: var(--skill-writing); background: var(--skill-writing-soft); }
.skill-reading { color: var(--skill-reading); background: var(--skill-reading-soft); }
.skill-listening { color: var(--skill-listening); background: var(--skill-listening-soft); }

/* ---------- Cards ---------- */
.card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--space-6); }
.card-link { display: flex; flex-direction: column; gap: var(--space-2); text-decoration: none; color: var(--color-text); transition: border-color var(--duration) var(--ease), box-shadow var(--duration) var(--ease), transform var(--duration) var(--ease); }
.card-link:hover { color: var(--color-text); border-color: var(--color-border-strong); box-shadow: var(--shadow-card); transform: translateY(-2px); }
.card-link h3 { margin: 0; font-size: 1.125rem; }
.card-link p { margin: 0; color: var(--color-text-secondary); font-size: var(--fs-body-sm); }
.card-link .card-cta { margin-top: auto; padding-top: var(--space-3); display: inline-flex; align-items: center; gap: var(--space-1); color: var(--color-primary); font-weight: 700; font-size: var(--fs-body-sm); }

/* Skill entry tiles on the homepage and practice hub */
.skill-tile { position: relative; overflow: hidden; }
.skill-tile .skill-icon { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; margin-bottom: var(--space-2); }
.skill-tile .skill-icon .icon { width: 22px; height: 22px; }
.skill-tile ul { list-style: none; padding: 0; margin: var(--space-2) 0 0; font-size: var(--fs-body-sm); color: var(--color-text-secondary); }
.skill-tile li { margin: 0; padding: 0.15rem 0; }

/* Task cards in the practice hub */
.task-card { display: grid; grid-template-columns: 1fr auto; gap: var(--space-1) var(--space-4); align-items: start; padding: var(--space-5); }
.task-card h3 { font-size: 1.05rem; margin: 0; }
.task-card .task-meta { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: var(--space-2) var(--space-4); font-size: var(--fs-caption); color: var(--color-text-muted); margin-top: var(--space-2); }
.task-card .task-meta span { display: inline-flex; align-items: center; gap: 0.3rem; }
.task-card p { grid-column: 1 / -1; margin: 0; font-size: var(--fs-body-sm); color: var(--color-text-secondary); }
.task-card .progress-line { grid-column: 1 / -1; margin-top: var(--space-3); }
.status-pill { font-size: var(--fs-caption); font-weight: 700; padding: 0.15rem 0.55rem; border-radius: var(--radius-pill); background: var(--color-bg-soft); color: var(--color-text-muted); white-space: nowrap; }
.status-pill.is-progress { background: var(--color-info-soft); color: var(--color-info); }
.status-pill.is-done { background: var(--color-success-soft); color: var(--color-success); }

.progress-line { height: 6px; border-radius: var(--radius-pill); background: var(--color-bg-soft); overflow: hidden; }
.progress-line > span { display: block; height: 100%; border-radius: inherit; background: var(--color-primary); width: 0; transition: width 400ms var(--ease); }

/* ---------- Hero ---------- */
.hero { padding-block: clamp(var(--space-10), 6vw, var(--space-20)) clamp(var(--space-12), 7vw, var(--space-24)); position: relative; }
.hero h1 { font-size: var(--fs-display); letter-spacing: -0.03em; margin-bottom: var(--space-5); }
.hero h1 em { font-style: normal; color: var(--color-primary); display: block; }
.hero .lede { margin-bottom: var(--space-6); }
.hero-actions { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-bottom: var(--space-5); }
.hero-proof { display: flex; flex-wrap: wrap; gap: var(--space-2) var(--space-5); list-style: none; padding: 0; margin: 0; color: var(--color-text-secondary); font-size: var(--fs-body-sm); font-weight: 600; }
.hero-proof li { margin: 0; display: inline-flex; align-items: center; gap: var(--space-2); }
.hero-proof .icon { color: var(--color-success); }
.hero-art { max-width: 540px; margin-inline: auto; width: 100%; }

/* Homepage: an exam-practice scene framed by four useful skill shortcuts. */
.hero-practice-scene {
  position: relative;
  isolation: isolate;
  width: 100%;
  max-width: 510px;
  margin-inline: auto;
  padding-block: 44px;
}
.hero-practice-art {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  mix-blend-mode: multiply;
  mask-image: linear-gradient(to right, transparent, #000 5%, #000 95%, transparent), linear-gradient(to bottom, transparent, #000 5%, #000 95%, transparent);
  mask-composite: intersect;
}
.hero-skill-float {
  position: absolute;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 56px;
  padding: 9px 13px 9px 9px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: 0 8px 24px -12px rgba(28, 37, 82, 0.22), 0 2px 4px rgba(28, 37, 82, 0.04);
  color: var(--color-secondary);
  font-size: var(--fs-label);
  font-weight: 700;
  text-decoration: none;
  animation: hero-skill-float 6s ease-in-out infinite;
}
.hero-skill-float > .icon { width: 13px; opacity: 0.5; }
.hero-skill-symbol { display: grid; place-items: center; width: 34px; height: 34px; border-radius: var(--radius-md); }
.hero-skill-symbol .icon { width: 20px; height: 20px; }
.hero-skill-float:hover, .hero-skill-float:focus-visible { color: var(--color-secondary); border-color: var(--color-border-strong); animation-play-state: paused; }
.hero-skill-listening { top: 12px; left: 3%; }
.hero-skill-reading { top: 30px; right: 2%; animation-delay: -1.5s; }
.hero-skill-writing { bottom: 8px; left: 9%; animation-delay: -3s; }
.hero-skill-speaking { bottom: 24px; right: 0; animation-delay: -4.5s; }
@keyframes hero-skill-float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-6px); } }
@media (max-width: 899px) {
  .hero > .split { gap: var(--space-8); }
  .hero-practice-scene { max-width: 440px; }
}
@media (max-width: 599px) {
  .hero-practice-scene { max-width: 340px; padding-block: 48px; }
  .hero-skill-float { min-height: 48px; padding: 7px 9px 7px 7px; gap: 7px; font-size: var(--fs-caption); border-radius: 12px; }
  .hero-skill-symbol { width: 28px; height: 28px; }
  .hero-skill-symbol .icon { width: 17px; height: 17px; }
  .hero-skill-listening { left: 0; }
  .hero-skill-reading { right: 0; }
  .hero-skill-writing { left: 2%; }
}
@media (prefers-reduced-motion: reduce) {
  .hero-skill-float { animation: none; }
}

.page-hero { padding-block: var(--space-8) var(--space-10); }
.page-hero h1 { margin-bottom: var(--space-3); }
.page-hero .lede { margin-bottom: 0; }
.page-hero-actions { margin-top: var(--space-6); display: flex; flex-wrap: wrap; gap: var(--space-3); }

/* ---------- Breadcrumbs ---------- */
.breadcrumbs { font-size: var(--fs-label); color: var(--color-text-muted); padding-top: var(--space-5); }
.breadcrumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: var(--space-1); padding: 0; margin: 0; }
.breadcrumbs li { margin: 0; display: inline-flex; align-items: center; gap: var(--space-1); }
.breadcrumbs li + li::before { content: '/'; color: var(--color-border-strong); margin-right: var(--space-1); }
.breadcrumbs a { color: var(--color-text-muted); text-decoration: none; }
.breadcrumbs a:hover { color: var(--color-primary); text-decoration: underline; }
.breadcrumbs [aria-current] { color: var(--color-text-secondary); font-weight: 600; }

/* ---------- Quick facts ---------- */
.facts { display: flex; flex-wrap: wrap; gap: var(--space-2); margin: var(--space-5) 0 0; padding: 0; list-style: none; }
.facts li { margin: 0; display: inline-flex; align-items: center; gap: var(--space-2); padding: 0.4rem 0.8rem; background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-pill); font-size: var(--fs-label); color: var(--color-text-secondary); }
.facts li strong { color: var(--color-text); }
.facts .icon { color: var(--color-primary); }

/* ---------- Prose (guides and task content) ---------- */
.prose { max-width: 72ch; }
.prose h2 { margin-top: var(--space-12); }
.prose h2:first-child { margin-top: 0; }
.prose h3 { margin-top: var(--space-8); font-size: 1.2rem; }
.prose p, .prose li { color: var(--color-text-secondary); }
.prose strong { color: var(--color-text); }
.prose ul li::marker { color: var(--color-primary); }
.prose ol li::marker { color: var(--color-primary); font-weight: 700; }
.prose table { margin: var(--space-6) 0; }
.prose .callout { margin: var(--space-6) 0; }
.content-layout { display: grid; gap: var(--space-10); }
@media (min-width: 1000px) { .content-layout { grid-template-columns: minmax(0, 1fr) 300px; gap: var(--space-16); } .content-aside { position: sticky; top: calc(var(--header-h) + var(--space-6)); align-self: start; } }
.toc { font-size: var(--fs-body-sm); }
.toc h2 { font-family: var(--font-text); font-size: var(--fs-label); text-transform: uppercase; letter-spacing: 0.06em; color: var(--color-text-muted); margin-bottom: var(--space-3); }
.toc ol { list-style: none; padding: 0; margin: 0; border-left: 2px solid var(--color-divider); }
.toc li { margin: 0; }
.toc a { display: block; padding: 0.35rem 0 0.35rem var(--space-4); margin-left: -2px; border-left: 2px solid transparent; color: var(--color-text-secondary); text-decoration: none; }
.toc a:hover { color: var(--color-primary); border-left-color: var(--color-primary); }

/* ---------- Tables ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--color-border); border-radius: var(--radius-lg); background: var(--color-surface); -webkit-overflow-scrolling: touch; }
table { width: 100%; border-collapse: collapse; font-size: var(--fs-body-sm); }
th, td { text-align: left; padding: 0.75rem 1rem; border-bottom: 1px solid var(--color-divider); vertical-align: top; }
th { font-weight: 700; color: var(--color-text); background: var(--color-surface-sunken); white-space: nowrap; }
tbody tr:last-child td { border-bottom: 0; }
td { color: var(--color-text-secondary); }
td a { font-weight: 600; }
.table-wrap table { min-width: 560px; }
.table-wrap.fit table { min-width: 0; }

/* ---------- Callouts ---------- */
.callout { display: flex; gap: var(--space-3); padding: var(--space-4) var(--space-5); border-radius: var(--radius-md); background: var(--color-info-soft); color: var(--color-text); font-size: var(--fs-body-sm); line-height: 1.55; }
.callout .icon { color: var(--color-info); margin-top: 0.15rem; }
.callout p { margin: 0; color: var(--color-text); }
.callout p + p { margin-top: var(--space-2); }
.callout-warning { background: var(--color-warning-soft); }
.callout-warning .icon { color: var(--color-warning); }
.callout-success { background: var(--color-success-soft); }
.callout-success .icon { color: var(--color-success); }
.callout-error { background: var(--color-error-soft); }
.callout-error .icon { color: var(--color-error); }
.callout-neutral { background: var(--color-bg-soft); }
.callout-neutral .icon { color: var(--color-text-muted); }

/* ---------- FAQ ---------- */
.faq { border-top: 1px solid var(--color-border); max-width: 820px; }
.faq details { border-bottom: 1px solid var(--color-border); }
.faq summary { display: flex; justify-content: space-between; align-items: center; gap: var(--space-4); padding: var(--space-5) 0; cursor: pointer; list-style: none; font-weight: 700; font-size: 1.075rem; color: var(--color-text); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary .icon { color: var(--color-primary); transition: transform var(--duration) var(--ease); }
.faq details[open] summary .icon { transform: rotate(45deg); }
.faq summary:hover { color: var(--color-primary); }
.faq .faq-body { padding: 0 0 var(--space-5); color: var(--color-text-secondary); max-width: 68ch; }
.faq .faq-body p:last-child { margin-bottom: 0; }

/* ---------- Steps ---------- */
.steps { list-style: none; padding: 0; margin: 0; display: grid; gap: var(--space-6); counter-reset: step; }
@media (min-width: 800px) { .steps { grid-template-columns: repeat(3, 1fr); } }
.steps li { margin: 0; counter-increment: step; }
.steps li::before { content: counter(step); display: inline-grid; place-items: center; width: 36px; height: 36px; border-radius: 50%; background: var(--color-secondary); color: #fff; font-family: var(--font-display); font-weight: 700; margin-bottom: var(--space-3); }
.steps h3 { font-size: 1.125rem; margin-bottom: var(--space-2); }
.steps p { color: var(--color-text-secondary); margin: 0; font-size: var(--fs-body-sm); }

/* ---------- Checklist ---------- */
.checklist { list-style: none; padding: 0; margin: 0 0 var(--space-4); }
.checklist li { display: flex; gap: var(--space-3); align-items: flex-start; padding: 0.35rem 0; margin: 0; color: var(--color-text-secondary); }
.checklist li .icon { color: var(--color-success); margin-top: 0.2rem; }
.checklist.is-neutral li .icon { color: var(--color-text-muted); }

/* ---------- Forms ---------- */
.field { display: grid; gap: var(--space-2); margin-bottom: var(--space-5); }
.label { font-weight: 700; font-size: var(--fs-label); color: var(--color-text); }
.hint { font-size: var(--fs-caption); color: var(--color-text-muted); }
.input, .select, .textarea { width: 100%; min-height: 46px; padding: 0.65rem 0.85rem; border-radius: var(--radius-md); border: 1.5px solid var(--color-border-strong); background: var(--color-surface); color: var(--color-text); transition: border-color var(--duration) var(--ease), box-shadow var(--duration) var(--ease); }
.textarea { min-height: 160px; resize: vertical; line-height: 1.6; }
.input:hover, .select:hover, .textarea:hover { border-color: var(--color-text-muted); }
.input:focus, .select:focus, .textarea:focus { outline: none; border-color: var(--color-focus); box-shadow: 0 0 0 3px rgba(31, 88, 184, 0.2); }
.input[aria-invalid='true'], .textarea[aria-invalid='true'], .select[aria-invalid='true'] { border-color: var(--color-error); }
.input[aria-invalid='true']:focus, .textarea[aria-invalid='true']:focus { box-shadow: 0 0 0 3px rgba(179, 38, 30, 0.18); }
.input:disabled, .textarea:disabled, .select:disabled { background: var(--color-disabled-bg); color: var(--color-disabled-text); cursor: not-allowed; }
.field-error { display: flex; align-items: center; gap: var(--space-2); font-size: var(--fs-label); color: var(--color-error); font-weight: 600; }
.form-status { margin-top: var(--space-4); }
.check { display: inline-flex; align-items: center; gap: var(--space-2); cursor: pointer; font-size: var(--fs-body-sm); }
.check input { width: 18px; height: 18px; accent-color: var(--color-primary); }
.switch { display: inline-flex; align-items: center; gap: var(--space-3); cursor: pointer; font-size: var(--fs-body-sm); color: var(--color-text-secondary); }
.switch input { appearance: none; width: 40px; height: 24px; border-radius: 999px; background: var(--color-border-strong); position: relative; transition: background var(--duration) var(--ease); cursor: pointer; flex: none; margin: 0; }
.switch input::after { content: ''; position: absolute; top: 3px; left: 3px; width: 18px; height: 18px; border-radius: 50%; background: #fff; box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2); transition: transform var(--duration) var(--ease); }
.switch input:checked { background: var(--color-primary); }
.switch input:checked::after { transform: translateX(16px); }

/* ---------- Tabs / filters ---------- */
.tabs { display: flex; gap: var(--space-2); flex-wrap: wrap; }
.tab { display: inline-flex; align-items: center; gap: var(--space-2); min-height: 40px; padding: 0.4rem 1rem; border-radius: var(--radius-pill); border: 1.5px solid var(--color-border); background: var(--color-surface); color: var(--color-text-secondary); font-weight: 600; font-size: var(--fs-body-sm); text-decoration: none; }
.tab:hover { border-color: var(--color-border-strong); color: var(--color-text); }
.tab[aria-pressed='true'], .tab[aria-selected='true'], .tab.is-active { background: var(--color-secondary); border-color: var(--color-secondary); color: #fff; }
.tab .count { font-size: var(--fs-caption); opacity: 0.8; }
.filter-bar { display: flex; flex-wrap: wrap; gap: var(--space-4); justify-content: space-between; align-items: center; margin-bottom: var(--space-8); padding-bottom: var(--space-5); border-bottom: 1px solid var(--color-divider); }
.filter-bar label { font-size: var(--fs-label); font-weight: 700; color: var(--color-text-secondary); }
.filter-bar .select { width: auto; min-height: 40px; padding-block: 0.35rem; }

/* ---------- Stats (progress page) ---------- */
.stat { padding: var(--space-5); }
.stat-value { font-family: var(--font-display); font-size: 2rem; font-weight: 700; line-height: 1.1; }
.stat-label { font-size: var(--fs-label); color: var(--color-text-muted); font-weight: 600; }

/* ---------- Empty state ---------- */
.empty { text-align: center; padding: var(--space-10) var(--space-6); border: 1.5px dashed var(--color-border-strong); border-radius: var(--radius-lg); background: var(--color-surface); }
.empty img, .empty svg.empty-art { width: 140px; margin: 0 auto var(--space-4); }
.empty h3 { margin-bottom: var(--space-2); }
.empty p { color: var(--color-text-secondary); max-width: 46ch; margin-inline: auto; }

/* ---------- CTA band ---------- */
.cta-band { border-radius: var(--radius-xl); background: var(--color-ink-band); color: #fff; padding: clamp(var(--space-8), 5vw, var(--space-16)); display: grid; gap: var(--space-6); align-items: center; position: relative; overflow: hidden; }
@media (min-width: 860px) { .cta-band { grid-template-columns: 1fr auto; } }
.cta-band h2 { color: #fff; margin-bottom: var(--space-2); }
.cta-band p { color: var(--color-text-inverse-muted); margin: 0; }
.cta-band::after { content: ''; position: absolute; right: -60px; top: -60px; width: 220px; height: 220px; border-radius: 50%; border: 36px solid rgba(242, 178, 51, 0.16); pointer-events: none; }

/* ---------- Footer ---------- */
.site-footer { background: var(--color-ink-band); color: var(--color-text-inverse-muted); padding-block: var(--space-16) var(--space-8); margin-top: var(--space-16); font-size: var(--fs-body-sm); }
.footer-grid { display: grid; gap: var(--space-8); grid-template-columns: repeat(2, 1fr); }
@media (min-width: 900px) { .footer-grid { grid-template-columns: 1.4fr repeat(4, 1fr); } }
.footer-brand { grid-column: 1 / -1; }
@media (min-width: 900px) { .footer-brand { grid-column: auto; } }
.footer-brand p { margin-top: var(--space-4); max-width: 34ch; }
.site-footer h2 { font-family: var(--font-text); font-size: var(--fs-label); text-transform: uppercase; letter-spacing: 0.08em; color: #fff; margin-bottom: var(--space-3); }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin: 0; }
.site-footer a { color: var(--color-text-inverse-muted); text-decoration: none; display: inline-block; padding: 0.3rem 0; }
.site-footer a:hover { color: #fff; text-decoration: underline; }
.footer-bottom { margin-top: var(--space-12); padding-top: var(--space-6); border-top: 1px solid rgba(255, 255, 255, 0.14); display: grid; gap: var(--space-3); font-size: var(--fs-caption); }
@media (min-width: 900px) { .footer-bottom { grid-template-columns: auto 1fr; gap: var(--space-8); } }
.footer-bottom p { margin: 0; }
.site-footer.is-compact { margin-top: 0; padding-block: var(--space-6); }

/* ---------- Illustrations ---------- */
.illo { width: 100%; height: auto; }
.illo-sm { max-width: 220px; }

/* ---------- Home specifics ---------- */
.skill-grid { display: grid; gap: var(--space-4); grid-template-columns: repeat(auto-fit, minmax(min(100%, 250px), 1fr)); }
.feature-list { display: grid; gap: var(--space-6); }
.feature { display: grid; grid-template-columns: auto 1fr; gap: var(--space-4); align-items: start; }
.feature .f-icon { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; background: var(--color-primary-soft); color: var(--color-primary); }
.feature h3 { font-size: 1.1rem; margin-bottom: var(--space-1); }
.feature p { margin: 0; color: var(--color-text-secondary); font-size: var(--fs-body-sm); }
.task-index { columns: 1; column-gap: var(--space-8); }
@media (min-width: 700px) { .task-index { columns: 2; } }
@media (min-width: 1000px) { .task-index { columns: 4; } }
.task-index section { break-inside: avoid; margin-bottom: var(--space-6); }
.task-index h3 { font-size: 1rem; font-family: var(--font-text); display: flex; align-items: center; gap: var(--space-2); }
.task-index ul { list-style: none; padding: 0; margin: 0; }
.task-index li { margin: 0; }
.task-index a { display: flex; justify-content: space-between; gap: var(--space-2); padding: 0.4rem 0; color: var(--color-text-secondary); text-decoration: none; border-bottom: 1px solid var(--color-divider); font-size: var(--fs-body-sm); }
.task-index a:hover { color: var(--color-primary); }

.mock-card { display: grid; gap: var(--space-4); }
.mock-card .mock-head { display: flex; justify-content: space-between; align-items: start; gap: var(--space-3); }
.mock-card h3 { margin: 0; }
.mock-card .mock-parts { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.mock-card .mock-actions { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-top: var(--space-2); }

.related { display: grid; gap: var(--space-3); grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr)); }
.related a { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); padding: var(--space-4) var(--space-5); background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md); color: var(--color-text); text-decoration: none; font-weight: 600; }
.related a:hover { border-color: var(--color-primary); color: var(--color-primary); }
.related a .icon { color: var(--color-primary); }

.note-bar { background: var(--color-secondary); color: #fff; font-size: var(--fs-label); text-align: center; padding: var(--space-2) var(--gutter); }
.note-bar a { color: var(--color-accent); }

/* ---------- Utilities ---------- */
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mt-12 { margin-top: var(--space-12); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }
.text-center { text-align: center; }
.nowrap { white-space: nowrap; }

/* ---------- Page-level helpers ---------- */
.prose-wide { max-width: none; }
.prose-wide > p, .prose-wide > ul, .prose-wide > ol { max-width: 72ch; }
.hub-group + .hub-group { margin-top: var(--space-12); }
.hub-group-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: var(--space-3); margin-bottom: var(--space-5); }
.hub-group-head h2 { display: flex; align-items: center; gap: var(--space-3); margin: 0; }
.hub-group-head a { display: inline-flex; align-items: center; gap: var(--space-1); font-weight: 600; text-decoration: none; }
.skill-icon-sm { width: 34px; height: 34px; border-radius: 9px; display: inline-grid; place-items: center; }
.skill-icon-sm::before, .skill-icon::before { display: none; }
.f-icon-sm { width: 42px; height: 42px; border-radius: 11px; display: grid; place-items: center; background: var(--color-primary-soft); color: var(--color-primary); margin-bottom: var(--space-2); }

/* ---------- Test lists (sectional tests and mock tests) ---------- */
.test-grid { list-style: none; padding: 0; margin: 0; display: grid; gap: var(--space-3); grid-template-columns: repeat(auto-fill, minmax(min(100%, 250px), 1fr)); }
.test-grid li { margin: 0; }
.test-tile { display: flex; align-items: flex-start; gap: var(--space-3); height: 100%; padding: var(--space-4); background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md); color: var(--color-text); text-decoration: none; transition: border-color var(--duration) var(--ease), box-shadow var(--duration) var(--ease); }
.test-tile:hover { color: var(--color-text); border-color: var(--color-primary); box-shadow: var(--shadow-card); }
.test-num { flex: none; width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center; background: var(--color-secondary-soft); color: var(--color-secondary); font-family: var(--font-display); font-weight: 700; font-size: 0.95rem; }
.test-tile:hover .test-num { background: var(--color-primary); color: #fff; }
.test-body { display: grid; gap: 0.15rem; min-width: 0; flex: 1; }
.test-body strong { font-size: var(--fs-body-sm); }
.test-topics { font-size: var(--fs-caption); color: var(--color-text-muted); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.test-last { font-size: var(--fs-caption); color: var(--color-success); font-weight: 600; }
.mock-list { list-style: none; padding: 0; margin: var(--space-6) 0 0; display: grid; gap: var(--space-3); }
.mock-row { margin: 0; display: grid; gap: var(--space-4); align-items: center; padding: var(--space-4) var(--space-5); background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md); }
@media (min-width: 900px) { .mock-row { grid-template-columns: 1fr auto; } }
.mock-row-main { display: flex; gap: var(--space-4); align-items: flex-start; min-width: 0; }
.mock-row h3 { font-size: 1.05rem; margin: 0 0 var(--space-1); display: flex; flex-wrap: wrap; gap: var(--space-2); align-items: center; }
.mock-row-actions { display: flex; flex-wrap: wrap; gap: var(--space-2); align-items: center; }
.mock-row-actions .tab { min-height: 38px; }

/* backdrop-filter creates a containing block, so drop it while the mobile menu is open */
body.nav-open .site-header { backdrop-filter: none; -webkit-backdrop-filter: none; background: var(--color-bg); }
a.skill-tag { text-decoration: none; }
a.skill-tag:hover { filter: brightness(0.95); }

.test-level { display: inline-block; margin-left: 0.3rem; padding: 0 0.45rem; border-radius: var(--radius-pill); background: var(--color-warning-soft); color: var(--color-warning); font-size: 0.72rem; font-weight: 700; vertical-align: 1px; }

/* ---------- Skill dropdowns ---------- */
.mega-sm { max-height: calc(100vh - var(--header-h) - 24px); overflow-y: auto; }
.nav-list > .nav-item:nth-last-child(-n+2) .mega-sm { left: auto; right: -12px; }
.mega-sm a.mega-link-strong { display: flex; flex-wrap: wrap; align-items: center; gap: 0 var(--space-2); font-weight: 700; color: var(--color-primary); background: var(--color-primary-softer); }
.mega-sm a.mega-link-strong span { flex-basis: 100%; }
.mega-sm a.mega-link-strong:hover { background: var(--color-primary-soft); color: var(--color-primary-hover); }
.mega-label { margin: var(--space-3) var(--space-3) var(--space-1); font-size: var(--fs-caption); font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--color-text-muted); }
.mega-sm a.mega-link-compact { display: flex; align-items: center; justify-content: space-between; gap: var(--space-2); padding-block: 0.35rem; font-size: var(--fs-body-sm); color: var(--color-text-secondary); }
.mega-link-compact .badge { flex: none; padding: 0.1rem 0.45rem; font-size: 0.7rem; }
.mega-sm a.mega-link[aria-current='page'] { color: var(--color-primary); font-weight: 700; }
.mobile-nav .m-sum { display: inline-flex; align-items: center; gap: var(--space-2); }
.mobile-nav .m-sum .icon { color: var(--color-primary); }

/* ---------- Tools ---------- */
.calc-grid { display: grid; gap: var(--space-8); }
@media (min-width: 860px) { .calc-grid { grid-template-columns: 1fr 1fr; } }
.calc-set { border: 0; padding: 0; margin: 0; min-width: 0; }
.calc-set legend { padding: 0; margin-bottom: var(--space-1); }
.calc-set .caption { margin-bottom: var(--space-4); }
.calc-skills { display: grid; grid-template-columns: 1fr 1fr; gap: 0 var(--space-4); }
.calc-field { margin-bottom: var(--space-4); }
.calc-result { margin-top: var(--space-8); padding-top: var(--space-6); border-top: 1px dashed var(--color-border-strong); }
.calc-result > * + * { margin-top: var(--space-4); }
.calc-table td, .calc-table th { vertical-align: middle; }
.calc-bar-cell { width: 30%; min-width: 120px; }
.calc-bar { position: relative; height: 10px; border-radius: var(--radius-pill); background: var(--color-bg-soft); }
.calc-bar span { position: absolute; left: 0; top: 0; bottom: 0; border-radius: inherit; }
.calc-bar span.is-ok { background: var(--color-success); }
.calc-bar span.is-bad { background: var(--color-warning); }
.calc-bar i { position: absolute; top: -4px; bottom: -4px; width: 3px; margin-left: -1.5px; border-radius: 2px; background: var(--color-secondary); }
.calc-status { display: inline-flex; align-items: center; gap: 0.3rem; font-weight: 700; white-space: nowrap; }
.calc-status.is-ok { color: var(--color-success); }
.calc-status.is-bad { color: var(--color-error); }
.wc-area { min-height: 260px; font-size: 1.05rem; }
.wc-stats { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-top: var(--space-4); }
.wc-stats > div { flex: 1 1 120px; padding: var(--space-3) var(--space-4); background: var(--color-bg); border-radius: var(--radius-md); }
.wc-stats strong { display: block; font-family: var(--font-display); font-size: 1.5rem; font-variant-numeric: tabular-nums; }
.wc-stats span { font-size: var(--fs-caption); color: var(--color-text-muted); }
.wc-stats .btn-text { min-height: 0; padding: 0; }

/* Let long row labels wrap and let grid columns shrink on small screens */
tbody th { white-space: normal; }
.content-layout > *, .split > *, .calc-grid > * { min-width: 0; }

.nav-link { white-space: nowrap; }

/* Footer logo: identical to the header logo, on a light badge so the navy text stays readable */
.site-footer a.logo { display: inline-flex; align-items: center; gap: 0.45rem; padding: 0.55rem 0.9rem; border-radius: 12px; background: var(--color-bg); color: var(--color-text); text-decoration: none; }
.site-footer a.logo:hover { color: var(--color-text); text-decoration: none; background: #fff; }
.site-footer a.logo .logo-text b { color: var(--color-primary); }

/* Refined navigation: a quiet shell with expressive, easy-to-scan panels. */
.site-header { --font-nav: 'Manrope', var(--font-text); font-family: var(--font-nav); background: rgba(251, 248, 244, 0.96); border-bottom-color: rgba(227, 217, 204, 0.6); }
.site-header.is-scrolled { box-shadow: 0 4px 20px rgba(28, 37, 82, 0.045); }
.header-inner { gap: 28px; }
.nav-list { gap: 3px; padding: 4px; border: 1px solid rgba(227, 217, 204, 0.65); border-radius: 15px; background: rgba(255, 255, 255, 0.75); }
.nav-link { font-family: var(--font-nav); font-size: 0.9rem; font-weight: 700; padding: 10px 12px; border-radius: 10px; transition: background 160ms ease, color 160ms ease; }
.nav-link:hover, .nav-link[aria-expanded='true'] { background: var(--color-primary-soft); color: var(--color-primary-active); }
.nav-link[aria-current='page'], .nav-link.is-active { border-radius: 10px; box-shadow: none; background: var(--color-primary-softer); color: var(--color-primary); }
.nav-link .icon-sm { width: 12px; height: 12px; margin-left: 3px; opacity: 0.7; }
.nav-progress { border: 1px solid var(--color-border); background: rgba(255, 255, 255, 0.65); }
.site-header .header-cta { font-family: var(--font-nav); font-size: 0.8rem; border-radius: 10px; box-shadow: 0 4px 10px rgba(196, 65, 15, 0.12); }
.nav-item::after { content: ''; position: absolute; top: 100%; left: 0; right: 0; height: 14px; }
.mega-sm { top: calc(100% + 12px); width: 340px; padding: 12px; border-radius: 20px; border-color: rgba(227, 217, 204, 0.85); box-shadow: 0 20px 48px -16px rgba(28, 37, 82, 0.22), 0 4px 12px rgba(28, 37, 82, 0.04); }
.mega-sm:not([hidden]) { animation: nav-reveal 170ms ease-out; }
.nav-panel-heading { display: flex; align-items: center; gap: 12px; padding: 8px 8px 16px; margin-bottom: 6px; border-bottom: 1px solid var(--color-divider); }
.nav-panel-heading .skill-icon { width: 40px; height: 40px; border-radius: 12px; margin: 0; flex: none; }
.nav-panel-heading strong { display: block; font-size: 0.95rem; font-weight: 800; letter-spacing: -0.025em; }
.nav-panel-heading small { display: block; margin-top: 3px; color: var(--color-text-muted); font-size: 0.68rem; line-height: 1.5; }
.mega-sm a.mega-link { font-size: 0.85rem; font-weight: 600; padding: 10px 12px; border-radius: 10px; transition: background 150ms ease, color 150ms ease; }
.mega-sm a.mega-link span:not(.badge) { margin-top: 3px; font-size: 0.72rem; line-height: 1.5; font-weight: 400; }
.mega-sm a.mega-link:hover, .mega-sm a.mega-link:focus-visible { background: var(--color-primary-softer); color: var(--color-primary-active); }
.mega-sm a.mega-link-compact { padding-block: 9px; font-size: 0.8rem; }
.mega-label { font-size: 0.61rem; letter-spacing: 0.12em; margin-top: 16px; margin-bottom: 6px; }
.mega-link-compact .badge { font-size: 0.62rem; padding: 2px 7px; }
.mobile-nav { font-family: var(--font-nav); }
.mobile-nav details { margin-block: 8px; padding-inline: 14px; border: 1px solid var(--color-border); border-radius: 14px; background: var(--color-surface); }
.mobile-nav details[open] { border-color: var(--color-border-strong); }
.mobile-nav summary { font-size: 0.95rem; padding-block: 15px; }
.mobile-nav ul a { padding: 10px 8px; border-radius: 8px; font-size: 0.875rem; }
.mobile-nav ul a:hover { background: var(--color-primary-softer); color: var(--color-primary); }
@keyframes nav-reveal { from { opacity: 0; transform: translateY(5px); } to { opacity: 1; transform: translateY(0); } }
@media (min-width: 1100px) and (max-width: 1199px) { .header-inner { gap: 20px; } .nav-link { padding-inline: 9px; } }
@media (prefers-reduced-motion: reduce) { .mega-sm:not([hidden]) { animation: none; } }

/* Compact Resources menu: short labels and meaningful icons, no description wall. */
.resources-menu { left: auto; right: 0; top: calc(100% + 12px); width: 460px; max-width: calc(100vw - 32px); grid-template-columns: 1fr 1.15fr; gap: 0; padding: 12px; border-radius: 18px; box-shadow: 0 18px 44px -14px rgba(28, 37, 82, 0.2); max-height: calc(100dvh - var(--header-h) - 24px); overflow-y: auto; }
.resources-menu:not([hidden]) { animation: nav-reveal 150ms ease-out; }
.resource-group { padding: 4px; }
.resource-group + .resource-group { border-left: 1px solid var(--color-divider); padding-left: 12px; }
.resource-label { margin: 4px 10px 8px; color: var(--color-text-muted); font-size: 0.65rem; font-weight: 800; letter-spacing: 0.1em; text-transform: uppercase; }
.resource-link { display: flex; align-items: center; gap: 10px; min-height: 42px; padding: 9px 10px; border-radius: 9px; color: var(--color-secondary); text-decoration: none; font-size: 0.8rem; font-weight: 600; line-height: 1.4; transition: background 150ms ease, color 150ms ease; }
.resource-link > .icon { width: 18px; height: 18px; color: var(--color-text-muted); stroke-width: 1.7; }
.resource-link:hover, .resource-link:focus-visible, .resource-link[aria-current='page'] { background: var(--color-primary-softer); color: var(--color-primary); }
.resource-link:hover > .icon, .resource-link[aria-current='page'] > .icon { color: var(--color-primary); }
.resource-footer { grid-column: 1 / -1; display: flex; justify-content: space-between; align-items: center; margin-top: 10px; padding: 12px 14px 4px; border-top: 1px solid var(--color-divider); text-decoration: none; color: var(--color-primary); font-size: 0.75rem; font-weight: 700; }
.resource-footer:hover { color: var(--color-primary-hover); }
.mobile-resources { padding-bottom: 14px; }
.mobile-resources .resource-label { margin-top: 12px; }
.mobile-resources .resource-link { min-height: 44px; }
@media (prefers-reduced-motion: reduce) { .resources-menu:not([hidden]) { animation: none; } }

/* Skill dropdowns: first ten tests and a separate question-type column. */
.site-header .nav-list .nav-item .skill-menu { width: 580px; max-width: calc(100vw - 40px); left: 50%; right: auto; translate: -50% 0; grid-template-columns: 220px minmax(0, 1fr); gap: 12px; padding: 12px; }
.skill-menu-tests { padding: 6px 10px 6px 4px; border-right: 1px solid var(--color-divider); }
.skill-menu-label { display: flex; align-items: center; gap: 8px; margin: 2px 10px 10px; font-size: 0.75rem; font-weight: 800; color: var(--color-secondary); }
.skill-menu-label .icon { color: var(--color-primary); }
.skill-test-link { display: flex; align-items: center; gap: 10px; min-height: 32px; padding: 6px 10px; border-radius: 8px; font-size: 0.78rem; line-height: 1.4; font-weight: 600; color: var(--color-text-secondary); text-decoration: none; }
.skill-test-link .icon { width: 12px; height: 12px; color: var(--color-text-muted); }
.skill-test-link:hover, .skill-test-link:focus-visible { background: var(--color-primary-softer); color: var(--color-primary); }
.skill-view-all { display: flex; align-items: center; justify-content: space-between; gap: 8px; border-top: 1px solid var(--color-divider); margin: 8px 6px 0; padding: 12px 4px 4px; font-size: 0.7rem; font-weight: 700; text-decoration: none; }
.skill-menu-practice { min-width: 0; padding-top: 2px; }
.skill-menu .skill-overview { background: var(--color-bg); margin-bottom: 14px; }
.skill-menu .mega-label { font-size: 0.6rem; margin-top: 8px; }
.skill-menu a.mega-link-compact { font-size: 0.76rem; padding-block: 8px; }