:root {
  font-family: 'Bahnschrift', 'Trebuchet MS', sans-serif;
  color: #17211c;
  background: #f4f0e7;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  --ink: #17211c;
  --muted: #657069;
  --paper: #f4f0e7;
  --paper-deep: #ebe5d9;
  --white: #fffdf8;
  --line: #d6d0c5;
  --coral: #ed6a4b;
  --coral-dark: #c94f35;
  --blue: #2872d0;
  --green: #2f8067;
  --purple: #7657a8;
  --orange: #d98132;
  --shadow: 0 18px 50px rgba(35, 43, 38, .08);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  background:
    radial-gradient(circle at 78% 7%, rgba(237, 106, 75, .055), transparent 26%),
    radial-gradient(circle at 44% 54%, rgba(40, 114, 208, .04), transparent 30%),
    var(--paper);
}

body::before {
  position: fixed;
  inset: 0;
  pointer-events: none;
  content: '';
  opacity: .22;
  z-index: 50;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.06'/%3E%3C/svg%3E");
}

button, input, textarea, select { font: inherit; }
button { color: inherit; }
button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible { outline: 3px solid rgba(40, 114, 208, .28); outline-offset: 2px; }
button:disabled { cursor: not-allowed; opacity: .55; }

.app-shell { min-height: 100vh; }
.app-main { margin-left: 270px; min-height: 100vh; }

.sidebar {
  position: fixed;
  inset: 0 auto 0 0;
  z-index: 60;
  display: flex;
  flex-direction: column;
  width: 270px;
  padding: 28px 20px 20px;
  background: var(--ink);
  color: #f9f4e9;
}

.brand-row { display: flex; align-items: center; justify-content: space-between; }
.brand { display: inline-flex; align-items: center; gap: 11px; padding: 0; border: 0; background: transparent; color: inherit; font-weight: 700; font-size: 18px; letter-spacing: .16em; cursor: pointer; }
.brand-mark { display: grid; width: 36px; height: 36px; place-items: center; transform: rotate(-3deg); background: var(--coral); color: var(--ink); }
.brand-note { margin: 12px 2px 38px 48px; color: #9eaaa2; font-family: 'Newsreader', Georgia, serif; font-size: 13px; line-height: 1.35; }
.main-nav { display: grid; gap: 4px; }
.main-nav button { position: relative; display: flex; align-items: center; gap: 13px; width: 100%; min-height: 46px; padding: 0 12px; border: 0; background: transparent; color: #aeb8b1; font-size: 14px; text-align: left; cursor: pointer; transition: .2s ease; }
.main-nav button::before { position: absolute; left: -20px; width: 3px; height: 0; content: ''; background: var(--coral); transition: .2s ease; }
.main-nav button:hover { color: #fff; transform: translateX(2px); }
.main-nav button.active { background: rgba(255, 255, 255, .07); color: #fff; }
.main-nav button.active::before { height: 26px; }
.nav-count { margin-left: auto; display: grid; width: 22px; height: 22px; place-items: center; border-radius: 50%; background: var(--coral); color: var(--ink); font-size: 11px; font-weight: 700; }
.sidebar-bottom { margin-top: auto; }
.weekly-mini { padding: 16px; border: 1px solid #39443d; background: #202b25; }
.mini-heading { display: flex; justify-content: space-between; font-size: 11px; text-transform: uppercase; letter-spacing: .08em; }
.mini-heading strong { color: #fff; }
.mini-track { height: 4px; margin: 13px 0; background: #3a453e; overflow: hidden; }
.mini-track span { display: block; height: 100%; background: var(--coral); }
.weekly-mini p { margin: 0; color: #9eaaa2; font-family: 'Newsreader', Georgia, serif; font-size: 13px; line-height: 1.4; }
.profile-row { display: grid; grid-template-columns: 34px 1fr auto; align-items: center; gap: 10px; margin-top: 18px; padding: 12px 4px 0; border-top: 1px solid #344039; }
.avatar { display: grid; width: 34px; height: 34px; place-items: center; border-radius: 50%; background: #e8dbc8; color: var(--ink); font-size: 11px; font-weight: 700; }
.profile-row strong, .profile-row small { display: block; }
.profile-row strong { font-size: 12px; }
.profile-row small { margin-top: 2px; color: #8e9a92; font-size: 10px; }
.mobile-close { display: none !important; }
.sidebar-scrim { display: none; }

.topbar { display: flex; align-items: center; justify-content: space-between; height: 82px; padding: 0 clamp(24px, 5vw, 72px); border-bottom: 1px solid var(--line); background: rgba(244, 240, 231, .8); backdrop-filter: blur(12px); }
.topbar > div:first-of-type { display: flex; align-items: baseline; gap: 16px; }
.eyebrow { font-size: 10px; font-weight: 700; letter-spacing: .15em; text-transform: uppercase; }
.date-label { margin: 0; color: var(--muted); font-family: 'Newsreader', Georgia, serif; font-size: 14px; text-transform: capitalize; }
.streak-pill { display: flex; align-items: center; gap: 6px; min-height: 34px; padding: 0 13px; border: 1px solid #d9c9ba; border-radius: 20px; color: var(--coral-dark); background: #fbf5ec; }
.streak-pill strong { color: var(--ink); }
.streak-pill span { color: var(--muted); font-size: 12px; }
.icon-button { display: inline-grid; width: 40px; height: 40px; place-items: center; border: 1px solid var(--line); border-radius: 50%; background: transparent; cursor: pointer; transition: .2s ease; }
.icon-button:hover { border-color: var(--ink); background: var(--white); }
.menu-button { display: none; }

.content { min-height: calc(100vh - 82px); overflow: hidden; }
.page { max-width: 1280px; margin: 0 auto; padding: 58px clamp(24px, 5vw, 72px) 88px; animation: page-in .48s ease both; }
@keyframes page-in { from { opacity: 0; transform: translateY(9px); } to { opacity: 1; transform: translateY(0); } }

.kicker { display: inline-flex; align-items: center; gap: 9px; color: var(--coral-dark); font-size: 10px; font-weight: 700; letter-spacing: .17em; }
.kicker > span { width: 22px; height: 2px; background: currentColor; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(320px, .95fr); align-items: center; min-height: 460px; gap: clamp(40px, 7vw, 100px); }
.hero-copy h1, .page-intro h1 { margin: 21px 0 20px; font-family: 'Newsreader', Georgia, serif; font-size: clamp(49px, 6.1vw, 78px); font-weight: 500; line-height: .96; letter-spacing: -.045em; }
.hero-copy h1 em, .page-intro h1 em { color: var(--coral-dark); font-weight: 500; }
.hero-copy > p { max-width: 610px; margin: 0 0 30px; color: var(--muted); font-family: 'Newsreader', Georgia, serif; font-size: 20px; line-height: 1.5; }
.primary-button, .secondary-button { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 46px; padding: 0 20px; border: 1px solid var(--ink); border-radius: 2px; font-size: 13px; font-weight: 700; cursor: pointer; transition: .2s ease; }
.primary-button { background: var(--ink); color: #fff; box-shadow: 5px 5px 0 var(--coral); }
.primary-button:hover:not(:disabled) { transform: translate(2px, 2px); box-shadow: 3px 3px 0 var(--coral); }
.primary-button.small { min-height: 40px; padding: 0 15px; box-shadow: 3px 3px 0 var(--coral); }
.primary-button.full, .secondary-button.full { width: 100%; }
.secondary-button { background: transparent; }
.secondary-button:hover:not(:disabled) { background: var(--ink); color: #fff; }
.hero-card { position: relative; display: grid; min-height: 360px; place-items: center; overflow: hidden; border: 1px solid var(--line); background: #e8e0d2; box-shadow: var(--shadow); }
.hero-card::before { position: absolute; inset: 18px; content: ''; border: 1px solid rgba(23, 33, 28, .16); }
.orbit { position: absolute; border: 1px solid rgba(23, 33, 28, .18); border-radius: 50%; }
.orbit-one { width: 320px; height: 155px; transform: rotate(24deg); }
.orbit-two { width: 245px; height: 245px; transform: rotate(-18deg); }
.hero-glyph { position: relative; z-index: 2; display: grid; width: 102px; height: 102px; place-items: center; border-radius: 50%; background: var(--coral); color: var(--ink); box-shadow: 0 0 0 15px rgba(244, 240, 231, .72); }
.hero-quote { position: absolute; right: 35px; bottom: 30px; font-family: 'Newsreader', Georgia, serif; font-size: 17px; font-style: italic; line-height: 1.2; text-align: right; }
.scribble { position: absolute; top: 35px; left: 28px; transform: rotate(-5deg); font-family: 'Newsreader', Georgia, serif; font-size: 13px; font-style: italic; }

.section-block { margin-top: 74px; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 20px; margin-bottom: 23px; }
.section-heading > div { display: flex; align-items: baseline; gap: 15px; }
.section-index { color: var(--coral-dark); font-family: 'Newsreader', Georgia, serif; font-size: 15px; font-style: italic; }
.section-heading h2 { margin: 0; font-family: 'Newsreader', Georgia, serif; font-size: 31px; font-weight: 600; letter-spacing: -.02em; }
.section-heading > p { margin: 0; color: var(--muted); font-size: 12px; }
.route-card { padding: 0 26px 23px; border: 1px solid var(--line); background: rgba(255, 253, 248, .64); }
.route-progress { height: 4px; margin: 0 -26px 18px; background: var(--paper-deep); overflow: hidden; }
.route-progress span { display: block; height: 100%; background: var(--coral); transition: width .5s ease; }
.route-steps { display: grid; grid-template-columns: repeat(5, 1fr); }
.route-steps button { position: relative; display: grid; grid-template-columns: 34px 1fr; grid-template-rows: auto auto; align-items: center; gap: 2px 11px; min-height: 74px; padding: 12px 18px; border: 0; border-right: 1px solid var(--line); background: transparent; text-align: left; cursor: pointer; }
.route-steps button:last-child { border-right: 0; }
.route-steps button::after { position: absolute; right: -5px; top: calc(50% - 4px); z-index: 2; width: 8px; height: 8px; content: ''; transform: rotate(45deg); border-top: 1px solid var(--line); border-right: 1px solid var(--line); background: var(--white); }
.route-steps button:last-child::after { display: none; }
.step-number { grid-row: span 2; display: grid; width: 33px; height: 33px; place-items: center; border: 1px solid var(--line); border-radius: 50%; color: var(--muted); font-family: 'Newsreader', Georgia, serif; font-size: 12px; }
.step-label { font-size: 13px; font-weight: 700; }
.route-steps small { color: var(--muted); font-size: 10px; }
.route-steps button.done .step-number { border-color: var(--green); background: var(--green); color: #fff; }
.route-steps button.next { background: rgba(237, 106, 75, .07); }
.route-steps button.next .step-number { border-color: var(--coral); color: var(--coral-dark); }
.route-steps button:hover { background: var(--white); }

.dashboard-grid { display: grid; grid-template-columns: 1.45fr .55fr; gap: 18px; }
.featured-lesson, .stats-panel { min-height: 290px; border: 1px solid var(--line); }
.featured-lesson { position: relative; padding: 31px 34px; overflow: hidden; background: var(--blue); color: #fff; }
.featured-lesson::after { position: absolute; top: 40px; right: -45px; width: 210px; height: 210px; content: ''; border: 1px solid rgba(255, 255, 255, .3); border-radius: 50%; box-shadow: 0 0 0 35px rgba(255, 255, 255, .05); }
.card-topline { position: relative; z-index: 1; display: flex; justify-content: space-between; font-size: 9px; font-weight: 700; letter-spacing: .13em; }
.card-topline span { display: flex; align-items: center; gap: 7px; }
.featured-lesson h3 { position: relative; z-index: 1; max-width: 580px; margin: 38px 0 12px; font-family: 'Newsreader', Georgia, serif; font-size: clamp(27px, 3vw, 38px); font-weight: 500; line-height: 1.08; }
.featured-lesson > p { position: relative; z-index: 1; max-width: 620px; margin: 0; color: rgba(255, 255, 255, .76); font-family: 'Newsreader', Georgia, serif; font-size: 16px; line-height: 1.5; }
.term-row { position: relative; z-index: 1; display: flex; gap: 7px; margin-top: 20px; }
.term-row span { padding: 5px 8px; border: 1px solid rgba(255, 255, 255, .4); font-size: 9px; font-weight: 700; text-transform: uppercase; }
.text-button { position: relative; z-index: 1; display: inline-flex; align-items: center; gap: 8px; margin-top: 28px; padding: 0 0 3px; border: 0; border-bottom: 1px solid currentColor; background: transparent; color: inherit; font-size: 12px; font-weight: 700; cursor: pointer; }
.stats-panel { padding: 28px; background: var(--white); }
.stats-panel .card-topline { color: var(--muted); }
.stat-main { display: flex; align-items: end; gap: 13px; margin: 27px 0 22px; }
.stat-main strong { font-family: 'Newsreader', Georgia, serif; font-size: 66px; font-weight: 500; line-height: .8; }
.stat-main span { color: var(--muted); font-size: 11px; line-height: 1.2; }
.stat-line { display: flex; justify-content: space-between; padding: 11px 0; border-top: 1px solid var(--line); font-size: 11px; }
.week-dots { display: flex; justify-content: space-between; margin-top: 18px; }
.week-dots span { display: grid; width: 25px; height: 25px; place-items: center; border: 1px solid var(--line); border-radius: 50%; color: var(--muted); font-size: 9px; }
.week-dots span.filled { border-color: var(--green); background: var(--green); color: #fff; }
.week-dots span.today { border-color: var(--coral); color: var(--coral-dark); }
.principle-strip { display: grid; grid-template-columns: 45px 1fr; align-items: center; gap: 15px; margin-top: 18px; padding: 22px 27px; border: 1px dashed #bdb5a8; }
.principle-strip > svg { color: var(--coral-dark); }
.principle-strip strong { font-size: 10px; letter-spacing: .12em; text-transform: uppercase; }
.principle-strip p { margin: 5px 0 0; color: var(--muted); font-family: 'Newsreader', Georgia, serif; font-size: 15px; }

.page-intro { position: relative; display: grid; grid-template-columns: 75px 1fr; max-width: 920px; min-height: 270px; align-items: start; padding-top: 15px; }
.page-index { color: #c4bdb2; font-family: 'Newsreader', Georgia, serif; font-size: 55px; font-style: italic; line-height: 1; }
.page-intro h1 { margin-top: 23px; font-size: clamp(45px, 5.5vw, 70px); }
.page-intro > div > p { max-width: 650px; margin: 0; color: var(--muted); font-family: 'Newsreader', Georgia, serif; font-size: 18px; line-height: 1.5; }
.filter-bar { display: grid; grid-template-columns: minmax(240px, .65fr) 1.35fr; align-items: center; gap: 20px; padding: 20px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.search-field { display: flex; align-items: center; gap: 9px; min-height: 43px; padding: 0 13px; border: 1px solid var(--line); background: var(--white); color: var(--muted); }
.search-field input { width: 100%; border: 0; outline: 0; background: transparent; color: var(--ink); font-size: 12px; }
.search-field.compact { margin: 16px; }
.area-filters { display: flex; justify-content: end; gap: 4px; overflow-x: auto; }
.area-filters button { white-space: nowrap; min-height: 37px; padding: 0 11px; border: 0; border-bottom: 2px solid transparent; background: transparent; color: var(--muted); font-size: 10px; font-weight: 700; cursor: pointer; }
.area-filters button.active { border-color: var(--coral); color: var(--ink); }
.result-meta { display: flex; justify-content: space-between; margin: 24px 0 15px; color: var(--muted); font-size: 10px; letter-spacing: .06em; text-transform: uppercase; }
.lesson-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.lesson-card { --accent: var(--blue); position: relative; display: flex; flex-direction: column; min-height: 365px; padding: 21px; overflow: hidden; border: 1px solid var(--line); background: rgba(255, 253, 248, .72); transition: .25s ease; }
.lesson-card::before { position: absolute; inset: 0 auto auto 0; width: 100%; height: 4px; content: ''; background: var(--accent); }
.lesson-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.accent-blue { --accent: var(--blue); }
.accent-green { --accent: var(--green); }
.accent-orange { --accent: var(--orange); }
.accent-purple { --accent: var(--purple); }
.lesson-card-head { display: flex; justify-content: space-between; align-items: center; min-height: 24px; color: var(--muted); font-size: 9px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.lesson-card-head svg { color: var(--accent); }
.done-tag { display: flex; align-items: center; gap: 4px; color: var(--green); }
.lesson-number { display: block; margin: 27px 0 12px; color: var(--accent); font-family: 'Newsreader', Georgia, serif; font-size: 13px; font-style: italic; }
.lesson-card h2 { margin: 0; font-family: 'Newsreader', Georgia, serif; font-size: 27px; font-weight: 600; line-height: 1.1; }
.lesson-card > p { margin: 14px 0 25px; color: var(--muted); font-family: 'Newsreader', Georgia, serif; font-size: 15px; line-height: 1.48; }
.lesson-meta { display: flex; gap: 13px; margin-top: auto; color: var(--muted); font-size: 10px; text-transform: uppercase; }
.lesson-meta span { display: flex; align-items: center; gap: 5px; }
.card-action { position: absolute; right: 18px; bottom: 16px; display: grid; width: 38px; height: 38px; place-items: center; border: 1px solid var(--ink); background: transparent; cursor: pointer; }
.card-action:hover { background: var(--ink); color: #fff; }
.empty-state { display: grid; justify-items: center; padding: 65px 20px; border: 1px dashed var(--line); text-align: center; }
.empty-state h3 { margin: 15px 0 5px; font-family: 'Newsreader', Georgia, serif; font-size: 27px; }
.empty-state p { margin: 0 0 18px; color: var(--muted); }

.back-button { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 24px; padding: 0; border: 0; border-bottom: 1px solid var(--line); background: transparent; color: var(--muted); font-size: 11px; cursor: pointer; }
.reading-header { --accent: var(--blue); padding: clamp(35px, 6vw, 72px); border-top: 5px solid var(--accent); background: var(--white); }
.reading-meta { display: flex; gap: 18px; color: var(--accent); font-size: 10px; font-weight: 700; text-transform: uppercase; }
.reading-meta span { display: inline-flex; align-items: center; gap: 5px; }
.reading-header h1 { max-width: 850px; margin: 29px 0 16px; font-family: 'Newsreader', Georgia, serif; font-size: clamp(40px, 6vw, 68px); font-weight: 500; line-height: 1; letter-spacing: -.035em; }
.reading-header > p { max-width: 720px; color: var(--muted); font-family: 'Newsreader', Georgia, serif; font-size: 20px; line-height: 1.45; }
.objective { display: flex; align-items: center; gap: 13px; max-width: 690px; margin-top: 34px; padding: 16px 18px; border-left: 3px solid var(--accent); background: var(--paper); }
.objective svg { color: var(--accent); }
.objective strong, .objective span { display: block; }
.objective strong { margin-bottom: 4px; font-size: 9px; letter-spacing: .11em; text-transform: uppercase; }
.objective span { font-family: 'Newsreader', Georgia, serif; font-size: 15px; }
.reading-layout { display: grid; grid-template-columns: 1fr 250px; gap: 60px; padding: 60px clamp(30px, 6vw, 80px); background: rgba(255, 253, 248, .5); }
.article-body section { display: grid; grid-template-columns: 40px 1fr; gap: 18px; margin-bottom: 43px; }
.paragraph-index { color: var(--coral-dark); font-family: 'Newsreader', Georgia, serif; font-size: 13px; font-style: italic; }
.article-body h2 { margin: 0 0 12px; font-family: 'Newsreader', Georgia, serif; font-size: 27px; }
.article-body section p { margin: 0; color: #4d5851; font-family: 'Newsreader', Georgia, serif; font-size: 19px; line-height: 1.7; }
.article-body blockquote { display: flex; gap: 15px; margin: 55px 0 0; padding: 27px; border: 0; background: var(--ink); color: #fff; }
.article-body blockquote svg { flex: none; color: var(--coral); }
.article-body blockquote p { margin: 0; font-family: 'Newsreader', Georgia, serif; font-size: 20px; font-style: italic; line-height: 1.4; }
.reading-aside { align-self: start; position: sticky; top: 30px; padding: 20px; border-top: 2px solid var(--ink); }
.reading-aside button { display: flex; justify-content: space-between; width: 100%; padding: 13px 0; border: 0; border-bottom: 1px solid var(--line); background: transparent; font-size: 13px; font-weight: 700; cursor: pointer; }
.reading-aside p { color: var(--muted); font-family: 'Newsreader', Georgia, serif; font-size: 13px; line-height: 1.4; }
.completion-bar { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 25px 32px; border-top: 1px solid var(--line); background: var(--white); }
.completion-bar > div { display: flex; align-items: center; gap: 12px; }
.completion-bar > div > svg { color: var(--green); }
.completion-bar strong, .completion-bar small { display: block; }
.completion-bar small { margin-top: 3px; color: var(--muted); }

.vocabulary-layout { display: grid; grid-template-columns: 300px 1fr; min-height: 620px; border: 1px solid var(--line); background: rgba(255, 253, 248, .5); }
.term-list-panel { display: flex; flex-direction: column; border-right: 1px solid var(--line); background: var(--white); }
.term-list { overflow-y: auto; }
.term-list > button { display: grid; grid-template-columns: 10px 1fr auto; align-items: center; gap: 11px; width: 100%; min-height: 64px; padding: 10px 17px; border: 0; border-top: 1px solid var(--line); background: transparent; text-align: left; cursor: pointer; }
.term-list > button:hover, .term-list > button.active { background: var(--paper); }
.term-list > button.active { box-shadow: inset 3px 0 var(--coral); }
.term-list strong, .term-list small { display: block; }
.term-list strong { margin-bottom: 4px; font-family: 'Newsreader', Georgia, serif; font-size: 17px; }
.term-list small { color: var(--muted); font-size: 9px; text-transform: uppercase; }
.status-dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: #ccc6bb; }
.status-dot.practicing { background: var(--orange); }
.status-dot.mastered { background: var(--green); }
.legend { display: grid; gap: 8px; margin-top: auto; padding: 17px; border-top: 1px solid var(--line); color: var(--muted); font-size: 9px; }
.legend span { display: flex; align-items: center; gap: 7px; }
.legend i { flex: none; }
.term-workbench { padding: clamp(30px, 5vw, 60px); animation: page-in .35s ease both; }
.term-head { display: flex; justify-content: space-between; align-items: start; }
.term-head h1 { margin: 8px 0 0; font-family: 'Newsreader', Georgia, serif; font-size: clamp(45px, 6vw, 72px); font-weight: 500; line-height: 1; }
.status-label { padding: 7px 9px; border: 1px solid var(--line); color: var(--muted); font-size: 8px; font-weight: 700; letter-spacing: .1em; }
.status-label.practicing { border-color: var(--orange); color: #9c571b; }
.status-label.mastered { border-color: var(--green); color: var(--green); }
.definition-block { margin: 35px 0 23px; padding: 21px 25px; border-left: 4px solid var(--blue); background: var(--paper); }
.definition-block span, .example-grid span { font-size: 9px; font-weight: 700; letter-spacing: .11em; }
.definition-block p { margin: 9px 0 0; font-family: 'Newsreader', Georgia, serif; font-size: 22px; line-height: 1.42; }
.example-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.example-grid > div { display: grid; grid-template-columns: 23px 1fr; gap: 5px 8px; min-height: 130px; padding: 18px; border: 1px solid var(--line); }
.example-grid svg { grid-row: span 2; color: var(--green); }
.example-grid > div:nth-child(2) svg { color: var(--orange); }
.example-grid p { margin: 6px 0 0; color: var(--muted); font-family: 'Newsreader', Georgia, serif; font-size: 15px; line-height: 1.4; }
.own-words { margin-top: 26px; }
.own-words > label, .field-label { display: flex; align-items: center; gap: 7px; margin-bottom: 9px; font-size: 9px; font-weight: 700; letter-spacing: .1em; }
.own-words textarea { width: 100%; min-height: 105px; resize: vertical; padding: 15px; border: 1px solid var(--line); background: var(--white); color: var(--ink); outline: 0; font-family: 'Newsreader', Georgia, serif; font-size: 16px; line-height: 1.45; }
.own-words textarea:focus { border-color: var(--blue); }
.own-words > div { display: flex; justify-content: space-between; align-items: center; gap: 15px; margin-top: 10px; }
.own-words small { color: var(--muted); }
.mastery-row { display: flex; justify-content: space-between; align-items: center; gap: 20px; margin-top: 28px; padding-top: 20px; border-top: 1px solid var(--line); font-size: 11px; }
.mastery-row > div { display: flex; gap: 5px; }
.mastery-row button { min-height: 34px; padding: 0 11px; border: 1px solid var(--line); background: transparent; font-size: 10px; cursor: pointer; }
.mastery-row button:hover { border-color: var(--ink); }

.trainer-shell { display: grid; grid-template-columns: 1fr 54px 1fr; border: 1px solid var(--line); background: var(--white); }
.trainer-column { min-width: 0; padding: clamp(25px, 4vw, 42px); }
.input-column { background: #ede7dc; }
.trainer-title { display: flex; gap: 14px; margin-bottom: 28px; }
.trainer-title > span { color: var(--coral-dark); font-family: 'Newsreader', Georgia, serif; font-size: 14px; font-style: italic; }
.trainer-title h2 { margin: 0; font-family: 'Newsreader', Georgia, serif; font-size: 26px; }
.trainer-title p { margin: 4px 0 0; color: var(--muted); font-size: 11px; }
.field-label { display: block; }
.field-label textarea, .prompt-fields input, .prompt-fields textarea { display: block; width: 100%; margin-top: 8px; padding: 13px 14px; border: 1px solid var(--line); background: var(--white); outline: 0; font-family: 'Newsreader', Georgia, serif; font-size: 15px; line-height: 1.4; resize: vertical; }
.field-label textarea { min-height: 88px; font-size: 18px; }
.field-label textarea:focus, .prompt-fields input:focus, .prompt-fields textarea:focus { border-color: var(--blue); }
.prompt-fields { display: grid; gap: 13px; margin-top: 18px; }
.prompt-fields label { font-size: 8px; font-weight: 700; letter-spacing: .12em; }
.prompt-fields textarea { min-height: 72px; }
.clarity-meter { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 15px; margin: 20px 0; padding: 16px; border: 1px solid #d2c9bc; background: rgba(255, 253, 248, .55); }
.clarity-meter > div { grid-column: 1 / -1; display: flex; justify-content: space-between; margin-bottom: 3px; font-size: 9px; font-weight: 700; letter-spacing: .1em; }
.clarity-meter > span { display: flex; align-items: center; gap: 6px; color: var(--muted); font-size: 9px; }
.clarity-meter > span.pass { color: var(--green); }
.trainer-arrow { display: grid; place-items: center; border-right: 1px solid var(--line); border-left: 1px solid var(--line); color: var(--coral-dark); }
.result-column { display: flex; flex-direction: column; min-height: 690px; }
.result-placeholder { display: grid; flex: 1; place-content: center; justify-items: center; padding: 35px; border: 1px dashed var(--line); background: #fcfaf5; text-align: center; }
.result-placeholder svg { color: var(--coral); }
.result-placeholder h3 { margin: 15px 0 7px; font-family: 'Newsreader', Georgia, serif; font-size: 23px; }
.result-placeholder p { max-width: 330px; margin: 0; color: var(--muted); font-family: 'Newsreader', Georgia, serif; line-height: 1.45; }
.result-editor { flex: 1; width: 100%; min-height: 500px; padding: 20px; resize: none; border: 1px solid var(--line); background: #fcfaf5; color: var(--ink); outline: 0; font-family: 'Bahnschrift', 'Trebuchet MS', sans-serif; font-size: 12px; line-height: 1.65; }
.result-editor:focus { border-color: var(--blue); }
.result-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 15px; }
.formula-strip { display: flex; align-items: center; justify-content: space-between; gap: 30px; margin-top: 17px; padding: 18px 24px; border: 1px solid var(--line); }
.formula-strip > span { color: var(--coral-dark); font-size: 9px; font-weight: 700; letter-spacing: .13em; }
.formula-strip > div { display: flex; align-items: center; gap: 15px; }
.formula-strip strong { font-family: 'Newsreader', Georgia, serif; font-size: 14px; }
.formula-strip i { color: var(--coral); font-style: normal; }

.oral-toolbar { display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--line); background: var(--white); }
.oral-toolbar > * { padding: 19px 23px; }
.oral-toolbar > * + * { border-left: 1px solid var(--line); }
.oral-toolbar span { display: block; margin-bottom: 8px; color: var(--muted); font-size: 8px; font-weight: 700; letter-spacing: .12em; }
.oral-toolbar select { width: 100%; border: 0; outline: 0; background: transparent; font-family: 'Newsreader', Georgia, serif; font-size: 18px; font-weight: 600; }
.oral-toolbar strong { font-family: 'Newsreader', Georgia, serif; font-size: 18px; }
.oral-stage { display: grid; grid-template-columns: 1.35fr .65fr; margin-top: 14px; border: 1px solid var(--line); }
.structure-panel { padding: clamp(25px, 4vw, 43px); background: rgba(255, 253, 248, .64); }
.stage-heading { display: flex; justify-content: space-between; align-items: end; margin-bottom: 26px; }
.stage-heading h2 { margin: 7px 0 0; font-family: 'Newsreader', Georgia, serif; font-size: 29px; }
.stage-heading > p { color: var(--muted); font-family: 'Newsreader', Georgia, serif; font-size: 13px; font-style: italic; }
.speech-steps { display: grid; gap: 10px; }
.speech-step { display: grid; grid-template-columns: 55px 1fr; gap: 17px; padding: 19px 21px; border: 1px solid var(--line); background: var(--white); }
.big-number { display: grid; width: 48px; height: 48px; place-items: center; border-radius: 50%; background: var(--paper); color: var(--coral-dark); font-family: 'Newsreader', Georgia, serif; font-size: 27px; }
.speech-step h3 { margin: 0; font-family: 'Newsreader', Georgia, serif; font-size: 19px; }
.speech-step p { margin: 4px 0 13px; color: var(--muted); font-family: 'Newsreader', Georgia, serif; font-size: 13px; }
.speech-step label { font-size: 8px; font-weight: 700; letter-spacing: .09em; }
.speech-step input { width: 100%; margin-top: 6px; padding: 9px 0; border: 0; border-bottom: 1px solid var(--line); outline: 0; background: transparent; color: var(--ink); font-family: 'Newsreader', Georgia, serif; font-size: 14px; }
.speech-step input:focus { border-color: var(--blue); }
.timer-panel { display: flex; flex-direction: column; align-items: center; padding: 42px 29px; border-left: 1px solid var(--line); background: var(--ink); color: #fff; text-align: center; }
.timer-panel > .eyebrow { color: #9ba69f; }
.timer-ring { --progress: 360deg; position: relative; display: grid; width: 212px; height: 212px; place-items: center; margin: 45px 0 30px; border-radius: 50%; background: conic-gradient(var(--coral) var(--progress), #3d4841 0); }
.timer-ring::before { position: absolute; inset: 8px; content: ''; border-radius: 50%; background: var(--ink); }
.timer-ring.running { animation: timer-pulse 2s ease-in-out infinite; }
@keyframes timer-pulse { 50% { box-shadow: 0 0 0 12px rgba(237, 106, 75, .08); } }
.timer-ring > div { position: relative; z-index: 1; }
.timer-ring strong { display: block; font-family: 'Newsreader', Georgia, serif; font-size: 53px; font-weight: 500; line-height: 1; }
.timer-ring span { display: block; margin-top: 8px; color: #9ba69f; font-size: 8px; letter-spacing: .15em; }
.timer-actions { display: flex; align-items: center; gap: 15px; }
.timer-panel .icon-button { border-color: #445048; color: #d5dcd7; }
.record-button { display: grid; width: 58px; height: 58px; place-items: center; border: 0; border-radius: 50%; background: var(--coral); color: var(--ink); cursor: pointer; }
.timer-help { max-width: 230px; margin: 17px 0; color: #8f9b93; font-family: 'Newsreader', Georgia, serif; font-size: 12px; line-height: 1.4; }
.speech-message { display: block; margin-bottom: 12px; color: #e1c0b6; font-size: 10px; }
.transcript { max-height: 135px; margin: 0 0 15px; padding: 13px; overflow-y: auto; border: 1px solid #3b463f; text-align: left; }
.transcript span { color: #9ba69f; font-size: 8px; font-weight: 700; letter-spacing: .1em; }
.transcript p { margin: 7px 0 0; color: #dce2de; font-family: 'Newsreader', Georgia, serif; font-size: 13px; line-height: 1.45; }
.timer-panel .secondary-button { margin-top: auto; border-color: #738078; color: #fff; }
.speaking-tips { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 14px; border: 1px solid var(--line); }
.speaking-tips span { display: flex; align-items: center; gap: 10px; min-height: 58px; padding: 0 19px; border-right: 1px solid var(--line); color: var(--muted); font-size: 10px; }
.speaking-tips span:last-child { border: 0; }
.speaking-tips strong { color: var(--coral-dark); font-family: 'Newsreader', Georgia, serif; font-style: italic; }
.speaking-tips i { width: 16px; height: 1px; background: var(--line); }

.review-overview { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--line); background: var(--white); }
.review-overview > div { min-height: 150px; padding: 22px; border-right: 1px solid var(--line); }
.review-overview > div:last-child { border: 0; }
.review-overview strong { display: block; margin: 15px 0 0; font-family: 'Newsreader', Georgia, serif; font-size: 46px; font-weight: 500; line-height: 1; }
.review-overview strong small { font-size: 17px; }
.review-overview p { margin: 6px 0 0; color: var(--muted); font-size: 10px; }
.flashcard-area { display: grid; justify-items: center; margin-top: 45px; }
.deck-progress { display: grid; grid-template-columns: auto 280px auto; align-items: center; gap: 13px; color: var(--muted); font-size: 9px; text-transform: uppercase; }
.deck-progress div { height: 3px; background: var(--line); }
.deck-progress i { display: block; height: 100%; background: var(--coral); transition: width .3s ease; }
.flashcard { position: relative; width: min(100%, 620px); min-height: 340px; margin: 18px 0; border: 0; background: transparent; cursor: pointer; perspective: 1000px; }
.flashcard-face { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 40px; border: 1px solid var(--line); background: var(--white); box-shadow: var(--shadow); backface-visibility: hidden; transition: transform .5s ease; }
.flashcard-face::before { position: absolute; inset: 12px; content: ''; border: 1px solid #e6e0d6; pointer-events: none; }
.flashcard .front { transform: rotateY(0); }
.flashcard .back { transform: rotateY(-180deg); background: var(--ink); color: #fff; }
.flashcard.flipped .front { transform: rotateY(180deg); }
.flashcard.flipped .back { transform: rotateY(0); }
.flashcard-face strong { margin: 27px 0 12px; font-family: 'Newsreader', Georgia, serif; font-size: clamp(47px, 7vw, 72px); font-weight: 500; }
.flashcard-face > p { max-width: 470px; margin: 0; color: var(--muted); font-family: 'Newsreader', Georgia, serif; font-size: 18px; line-height: 1.45; }
.flashcard .back > p { color: #eef2ef; }
.flashcard-face blockquote { max-width: 460px; margin: 23px 0 0; padding: 13px; border-left: 2px solid var(--coral); color: #bbc4be; font-family: 'Newsreader', Georgia, serif; font-size: 14px; }
.flashcard-face small { position: absolute; bottom: 28px; display: flex; align-items: center; gap: 6px; color: #9aa39d; font-size: 9px; }
.rating-actions { display: flex; gap: 8px; }
.rating-actions button { display: inline-flex; align-items: center; gap: 6px; min-height: 42px; padding: 0 16px; border: 1px solid var(--line); background: transparent; font-size: 11px; cursor: pointer; }
.rating-actions button:last-child { border-color: var(--green); background: var(--green); color: #fff; }
.review-history { margin-top: 70px; }
.history-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.history-grid button { display: grid; grid-template-columns: 38px 1fr auto; align-items: center; gap: 12px; min-height: 84px; padding: 15px 18px; border: 1px solid var(--line); background: var(--white); text-align: left; cursor: pointer; }
.history-grid button:hover { border-color: var(--ink); }
.history-grid button > svg:first-child { color: var(--coral-dark); }
.history-grid strong, .history-grid span { display: block; }
.history-grid strong { margin-bottom: 4px; font-family: 'Newsreader', Georgia, serif; font-size: 16px; }
.history-grid span { overflow: hidden; color: var(--muted); font-size: 10px; text-overflow: ellipsis; white-space: nowrap; }

.review-complete { display: grid; justify-items: center; max-width: 620px; margin: 45px auto 0; padding: 55px 30px; border: 1px solid var(--line); background: var(--white); text-align: center; box-shadow: var(--shadow); }
.review-complete > svg { color: var(--orange); }
.review-complete h2 { margin: 17px 0 8px; font-family: 'Newsreader', Georgia, serif; font-size: 34px; }
.review-complete p { max-width: 430px; margin: 0 0 25px; color: var(--muted); font-family: 'Newsreader', Georgia, serif; font-size: 16px; line-height: 1.5; }
.app-toast { position: fixed; right: 24px; bottom: 24px; z-index: 100; padding: 13px 17px; transform: translateY(20px); border-left: 3px solid var(--coral); background: var(--ink); color: #fff; box-shadow: var(--shadow); opacity: 0; pointer-events: none; font-size: 12px; transition: .25s ease; }
.app-toast.show { transform: translateY(0); opacity: 1; }

@media (max-width: 1050px) {
  .app-main { margin-left: 228px; }
  .sidebar { width: 228px; }
  .brand-note { margin-left: 0; }
  .hero-grid { grid-template-columns: 1fr .8fr; gap: 35px; }
  .hero-card { min-height: 320px; }
  .route-steps button { grid-template-columns: 1fr; justify-items: center; text-align: center; }
  .step-number { grid-row: auto; }
  .lesson-grid { grid-template-columns: repeat(2, 1fr); }
  .trainer-shell { grid-template-columns: 1fr; }
  .trainer-arrow { min-height: 50px; transform: rotate(90deg); border: 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
  .result-column { min-height: 600px; }
  .oral-stage { grid-template-columns: 1fr; }
  .timer-panel { min-height: 580px; border-top: 1px solid var(--line); border-left: 0; }
}

@media (max-width: 780px) {
  .app-main { margin-left: 0; }
  .sidebar { width: 280px; transform: translateX(-100%); transition: transform .25s ease; }
  .sidebar.is-open { transform: translateX(0); }
  .sidebar-scrim.is-open { position: fixed; inset: 0; z-index: 55; display: block; width: 100%; height: 100%; border: 0; background: rgba(23, 33, 28, .55); }
  .mobile-close, .menu-button { display: inline-grid !important; }
  .topbar { height: 70px; padding: 0 20px; }
  .topbar > div:first-of-type { margin-right: auto; margin-left: 13px; }
  .date-label { display: none; }
  .page { padding: 40px 20px 70px; }
  .hero-grid { grid-template-columns: 1fr; min-height: auto; }
  .hero-card { min-height: 290px; }
  .hero-copy h1, .page-intro h1 { font-size: clamp(42px, 13vw, 62px); }
  .hero-copy > p { font-size: 17px; }
  .section-block { margin-top: 52px; }
  .section-heading { align-items: start; flex-direction: column; }
  .route-card { padding-inline: 15px; }
  .route-progress { margin-inline: -15px; }
  .route-steps { grid-template-columns: 1fr; }
  .route-steps button { grid-template-columns: 34px 1fr auto; grid-template-rows: 1fr; justify-items: start; border-right: 0; border-bottom: 1px solid var(--line); text-align: left; }
  .route-steps button::after { display: none; }
  .route-steps small { justify-self: end; }
  .dashboard-grid { grid-template-columns: 1fr; }
  .featured-lesson { min-height: 355px; }
  .page-intro { grid-template-columns: 45px 1fr; min-height: 260px; }
  .page-index { font-size: 39px; }
  .filter-bar { grid-template-columns: 1fr; }
  .area-filters { justify-content: start; }
  .result-meta span:last-child { display: none; }
  .lesson-grid { grid-template-columns: 1fr; }
  .reading-page { padding-inline: 0; }
  .reading-page .back-button { margin-left: 20px; }
  .reading-layout { grid-template-columns: 1fr; gap: 30px; padding: 40px 25px; }
  .reading-aside { position: static; }
  .completion-bar { align-items: stretch; flex-direction: column; }
  .vocabulary-layout { grid-template-columns: 1fr; }
  .term-list-panel { max-height: 340px; border-right: 0; border-bottom: 1px solid var(--line); }
  .term-list { max-height: 230px; }
  .legend { display: flex; }
  .example-grid { grid-template-columns: 1fr; }
  .own-words > div, .mastery-row { align-items: stretch; flex-direction: column; }
  .mastery-row > div { display: grid; grid-template-columns: 1fr 1fr; }
  .formula-strip { align-items: start; flex-direction: column; }
  .formula-strip > div { flex-wrap: wrap; }
  .oral-toolbar { grid-template-columns: 1fr; }
  .oral-toolbar > * + * { border-top: 1px solid var(--line); border-left: 0; }
  .speaking-tips { grid-template-columns: 1fr; }
  .speaking-tips span { border-right: 0; border-bottom: 1px solid var(--line); }
  .review-overview { grid-template-columns: 1fr; }
  .review-overview > div { min-height: 120px; border-right: 0; border-bottom: 1px solid var(--line); }
  .deck-progress { width: 100%; grid-template-columns: auto 1fr; }
  .deck-progress span:last-child { display: none; }
  .flashcard { min-height: 360px; }
  .history-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .topbar .eyebrow { font-size: 9px; }
  .streak-pill span { display: none; }
  .page-intro { grid-template-columns: 1fr; gap: 10px; }
  .page-intro h1 { margin-top: 16px; }
  .hero-card { min-height: 250px; }
  .hero-quote { right: 24px; bottom: 20px; }
  .lesson-card { min-height: 340px; }
  .reading-header { padding: 34px 24px; }
  .reading-meta { flex-wrap: wrap; }
  .reading-header h1 { font-size: 42px; }
  .article-body section { grid-template-columns: 1fr; }
  .completion-bar { padding: 22px; }
  .term-workbench { padding: 27px 20px; }
  .trainer-column { padding: 24px 18px; }
  .result-actions, .rating-actions { display: grid; grid-template-columns: 1fr 1fr; width: 100%; }
  .speech-step { grid-template-columns: 42px 1fr; padding: 15px; }
  .big-number { width: 39px; height: 39px; }
  .timer-ring { width: 190px; height: 190px; }
  .flashcard-face { padding: 35px 25px; }
  .flashcard-face strong { font-size: 46px; }
}

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

/* ─────────────────────────────────────────────────────────────
   NÍTIDO V2 · Plataforma editorial
   ───────────────────────────────────────────────────────────── */

:root {
  --ink: #10202c;
  --muted: #66727a;
  --paper: #f5f3ed;
  --paper-deep: #eae6dc;
  --white: #fdfcf8;
  --line: #d7d3c9;
  --coral: #c85b3e;
  --coral-dark: #a7432d;
  --blue: #315f83;
  --green: #3f745f;
  --purple: #69577b;
  --orange: #b66e2f;
  --navy: #10202c;
  --serif: 'Constantia', 'Palatino Linotype', 'Book Antiqua', Georgia, serif;
  --sans: 'Aptos', 'Bahnschrift', 'Trebuchet MS', sans-serif;
  font-family: var(--sans);
  color: var(--ink);
  background: var(--paper);
}

body {
  background: var(--paper);
  color: var(--ink);
}

body::before { opacity: .1; }
button, input, textarea, select { font-family: var(--sans); }
.hero-copy h1, .page-intro h1, .library-cover h1, .reading-header h1, .article-body h2, .term-head h1, .lesson-card h2, .editorial-heading h2, .practice-intro h2, .practice-card-heading h3 { font-family: var(--serif); }

.app-shell { display: block; }
.app-main { margin-left: 0; }

.sidebar {
  position: sticky;
  inset: 0 0 auto;
  z-index: 70;
  display: block;
  width: 100%;
  height: 74px;
  padding: 0;
  border-bottom: 1px solid #263946;
  background: var(--navy);
  color: #f7f5ef;
}

.nav-frame {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: clamp(24px, 4vw, 60px);
  width: min(100% - 40px, 1420px);
  height: 100%;
  margin: 0 auto;
}

.brand-row { display: flex; align-items: center; gap: 15px; }
.brand { gap: 9px; font-size: 16px; letter-spacing: .18em; }
.brand-mark { width: 31px; height: 31px; background: var(--coral); color: #fff; }
.brand-note { display: block; margin: 0; padding-left: 15px; border-left: 1px solid #3a4b56; color: #95a1a7; font-family: var(--serif); font-size: 12px; white-space: nowrap; }
.main-nav { display: flex; justify-content: center; gap: 0; }
.main-nav button { width: auto; min-height: 74px; padding: 0 13px; gap: 7px; color: #b7c0c5; font-size: 11px; letter-spacing: .015em; white-space: nowrap; }
.main-nav button::before { inset: auto 12px 0; width: auto; height: 0; }
.main-nav button.active { background: transparent; color: #fff; }
.main-nav button.active::before { height: 3px; }
.main-nav button:hover { transform: none; color: #fff; background: rgba(255,255,255,.035); }
.main-nav svg { width: 15px; height: 15px; }
.nav-count { width: 18px; height: 18px; font-size: 9px; }
.sidebar-bottom { display: flex; align-items: center; gap: 13px; margin: 0; }
.sidebar-bottom .profile-row { display: flex; width: auto; margin: 0; padding: 0; border: 0; }
.profile-row > div { display: none; }
.profile-row > svg { display: none; }
.avatar { width: 32px; height: 32px; background: #ebe6db; }
.sidebar .streak-pill { border-color: #40515c; background: transparent; }
.sidebar .streak-pill strong { color: #fff; }
.sidebar .streak-pill span { color: #a9b2b7; }
.mobile-close { display: none !important; }

.topbar {
  position: relative;
  height: 46px;
  padding: 0 max(24px, calc((100vw - 1420px) / 2));
  border-bottom: 1px solid var(--line);
  background: rgba(245,243,237,.96);
  backdrop-filter: blur(16px);
}
.topbar > div:first-of-type { gap: 12px; }
.topbar .eyebrow { color: var(--ink); }
.date-label { font-family: var(--serif); font-size: 12px; }
.catalogue-mark { display: flex; align-items: center; gap: 10px; color: var(--muted); font-size: 9px; letter-spacing: .08em; text-transform: uppercase; }
.catalogue-mark i { width: 3px; height: 3px; border-radius: 50%; background: var(--coral); }

.content { min-height: calc(100vh - 120px); }
.page { max-width: 1420px; padding: 64px 42px 100px; }

.hero-grid {
  grid-template-columns: minmax(0, 1.3fr) minmax(380px, .7fr);
  min-height: 520px;
  gap: 0;
  border: 1px solid var(--line);
  background: var(--white);
}
.hero-copy { padding: clamp(48px, 7vw, 92px); }
.hero-copy h1 { margin: 24px 0; font-size: clamp(55px, 6.4vw, 90px); line-height: .94; }
.hero-copy > p { max-width: 650px; color: #53616a; font-family: var(--serif); font-size: 20px; }
.hero-card { min-height: 100%; border: 0; border-left: 1px solid #223745; background: var(--navy); color: #fff; box-shadow: none; }
.hero-card::before { border-color: #334a58; }
.hero-card .orbit { border-color: #405864; }
.hero-card .hero-glyph { background: var(--coral); color: #fff; box-shadow: 0 0 0 15px rgba(255,255,255,.05); }
.hero-card .scribble, .hero-card .hero-quote { color: #d8dde0; }

.route-card, .featured-lesson, .stats-panel, .principle-strip { border-radius: 0; }
.featured-lesson { background: var(--navy); }
.dashboard-grid { grid-template-columns: 1.3fr .7fr; }
.section-heading h2 { font-family: var(--serif); }

.page-intro { grid-template-columns: 58px 1fr; max-width: 1000px; min-height: 300px; padding-top: 25px; }
.page-index { font-family: var(--serif); font-size: 43px; }
.page-intro h1 { font-size: clamp(48px, 5.6vw, 78px); line-height: .98; }
.page-intro > div > p { font-family: var(--serif); font-size: 19px; }

/* Biblioteca */
.library-page { padding-top: 0; }
.library-cover {
  display: grid;
  grid-template-columns: 1.18fr .82fr;
  min-height: 560px;
  margin: 0 -42px;
  border-bottom: 1px solid var(--line);
  background: var(--white);
}
.library-cover-copy { display: flex; flex-direction: column; justify-content: center; padding: 65px max(50px, calc((100vw - 1336px) / 2)); padding-right: 70px; }
.library-cover h1 { margin: 24px 0 20px; font-size: clamp(64px, 7vw, 104px); font-weight: 500; line-height: .88; letter-spacing: -.055em; }
.library-cover h1 em { color: var(--coral-dark); font-weight: 500; }
.library-cover-copy > p { max-width: 720px; margin: 0; color: #56646d; font-family: var(--serif); font-size: 20px; line-height: 1.55; }
.library-totals { display: flex; gap: 42px; margin-top: 48px; padding-top: 25px; border-top: 1px solid var(--line); }
.library-totals div { display: flex; align-items: baseline; gap: 8px; }
.library-totals strong { font-family: var(--serif); font-size: 32px; font-weight: 500; }
.library-totals span { max-width: 80px; color: var(--muted); font-size: 9px; line-height: 1.2; text-transform: uppercase; }
.cover-feature { --accent: var(--blue); position: relative; display: flex; flex-direction: column; justify-content: space-between; padding: 54px; overflow: hidden; background: var(--navy); color: #fff; }
.cover-feature::before { position: absolute; inset: auto -90px -100px auto; width: 370px; height: 370px; content: ''; border: 1px solid rgba(255,255,255,.13); border-radius: 50%; box-shadow: 0 0 0 55px rgba(255,255,255,.025), 0 0 0 110px rgba(255,255,255,.02); }
.cover-feature::after { position: absolute; inset: 0 auto 0 0; width: 5px; content: ''; background: var(--accent); }
.cover-label { position: relative; z-index: 1; align-self: start; padding: 7px 9px; border: 1px solid #4a5a63; color: #bdc6ca; font-size: 9px; letter-spacing: .15em; }
.cover-feature > div { position: relative; z-index: 1; }
.cover-feature > div > span { color: #9eacb3; font-size: 10px; letter-spacing: .08em; text-transform: uppercase; }
.cover-feature h2 { max-width: 560px; margin: 17px 0 15px; font-family: var(--serif); font-size: clamp(34px, 4vw, 55px); font-weight: 500; line-height: 1.04; }
.cover-feature p { max-width: 520px; color: #b8c1c6; font-family: var(--serif); font-size: 16px; line-height: 1.55; }
.path-section, .catalogue-section { padding-top: 84px; }
.editorial-heading { display: flex; align-items: end; justify-content: space-between; gap: 30px; margin-bottom: 26px; }
.editorial-heading > div { display: flex; align-items: baseline; gap: 15px; }
.editorial-heading > div > span { color: var(--coral-dark); font-family: var(--serif); font-size: 15px; font-style: italic; }
.editorial-heading h2 { margin: 0; font-size: 34px; font-weight: 500; letter-spacing: -.025em; }
.editorial-heading > p { max-width: 450px; margin: 0; color: var(--muted); font-family: var(--serif); font-size: 14px; text-align: right; }
.path-grid { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); background: var(--white); }
.path-card { --tone: var(--blue); position: relative; display: grid; grid-template-columns: 34px 1fr; gap: 14px; min-height: 170px; padding: 25px; border: 0; border-right: 1px solid var(--line); background: transparent; text-align: left; cursor: pointer; transition: .22s ease; }
.path-card:last-child { border-right: 0; }
.path-card::before { position: absolute; inset: 0 0 auto; height: 3px; content: ''; background: var(--tone); transform: scaleX(0); transform-origin: left; transition: .22s ease; }
.path-card:hover, .path-card.active { background: #f0ede5; }
.path-card:hover::before, .path-card.active::before { transform: scaleX(1); }
.path-card.tone-green { --tone: var(--green); }
.path-card.tone-orange { --tone: var(--orange); }
.path-card.tone-purple { --tone: var(--purple); }
.path-card > svg { color: var(--tone); }
.path-card strong, .path-card small { display: block; }
.path-card strong { margin-bottom: 11px; font-family: var(--serif); font-size: 18px; }
.path-card small { color: var(--muted); font-size: 11px; line-height: 1.5; }
.path-card b { position: absolute; right: 20px; bottom: 16px; color: #a49e94; font-family: var(--serif); font-size: 22px; font-weight: 500; }
.catalogue-section { padding-bottom: 20px; }
.premium-filter { grid-template-columns: 1fr auto; padding: 16px; border: 1px solid var(--line); background: var(--white); }
.premium-filter .search-field { min-height: 50px; border: 0; border-bottom: 1px solid var(--line); background: transparent; }
.filter-selects { display: flex; gap: 8px; }
.filter-selects label { display: grid; grid-template-columns: auto 140px; align-items: center; gap: 9px; padding: 0 13px; border-left: 1px solid var(--line); }
.filter-selects label > span { color: var(--muted); font-size: 8px; font-weight: 700; letter-spacing: .1em; }
.filter-selects select { min-height: 42px; border: 0; background: transparent; color: var(--ink); font-size: 11px; font-weight: 600; }
.catalogue-tabs { justify-content: flex-start; gap: 0; margin-top: 15px; border-bottom: 1px solid var(--line); }
.catalogue-tabs button { display: inline-flex; align-items: center; gap: 7px; min-height: 46px; padding: 0 16px; font-size: 10px; }
.catalogue-tabs button span { display: grid; min-width: 20px; height: 20px; place-items: center; border-radius: 50%; background: var(--paper-deep); color: var(--muted); font-size: 8px; }
.active-filter-row { display: flex; gap: 6px; min-height: 36px; padding-top: 9px; }
.active-filter-row button { display: inline-flex; align-items: center; gap: 6px; min-height: 27px; padding: 0 9px; border: 1px solid #c9c4ba; background: #ece8df; color: #53616a; font-size: 9px; cursor: pointer; }
.result-meta { margin-top: 20px; }
.lesson-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0; border-top: 1px solid var(--ink); }
.lesson-card { --accent: var(--blue); display: grid; grid-template-rows: auto 1fr auto; min-height: 345px; padding: 24px 26px; border: 0; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: rgba(253,252,248,.74); }
.lesson-card:nth-child(2n) { border-right: 0; }
.lesson-card::before { width: 3px; height: 0; transition: height .25s ease; }
.lesson-card:hover { transform: none; background: var(--white); box-shadow: none; }
.lesson-card:hover::before { height: 100%; }
.lesson-card-head { min-height: 20px; }
.lesson-card-head > span:last-child { color: #8b918d; }
.lesson-card-body { display: grid; grid-template-columns: 42px 1fr; gap: 10px; margin-top: 24px; }
.lesson-number { margin: 4px 0 0; font-family: var(--serif); }
.lesson-card h2 { max-width: 560px; margin-top: 13px; font-size: clamp(25px, 2.1vw, 32px); font-weight: 500; line-height: 1.12; }
.lesson-card > .lesson-card-body p { max-width: 600px; margin: 13px 0 17px; color: #617079; font-family: var(--serif); font-size: 15px; line-height: 1.5; }
.lesson-card .lesson-meta { margin: 0; }
.lesson-terms { display: flex; flex-wrap: wrap; gap: 5px; }
.lesson-terms span { padding: 4px 7px; border: 1px solid var(--line); color: #6b767d; font-size: 8px; text-transform: uppercase; }
.lesson-card .card-action { position: static; justify-self: end; display: inline-flex; width: auto; min-height: 35px; align-items: center; gap: 9px; padding: 0 0 3px; border: 0; border-bottom: 1px solid var(--ink); background: transparent; font-size: 10px; font-weight: 700; }
.lesson-card .card-action:hover { background: transparent; color: var(--coral-dark); }
.load-more { display: flex; align-items: center; justify-content: center; gap: 12px; width: 100%; min-height: 58px; border: 1px solid var(--line); border-top: 0; background: var(--white); font-size: 11px; font-weight: 700; cursor: pointer; }
.load-more span { color: var(--muted); font-size: 9px; font-weight: 400; }

/* Lectura editorial */
.reading-page { max-width: 1260px; padding-top: 35px; }
.reading-nav { display: flex; align-items: center; justify-content: space-between; margin-bottom: 24px; color: var(--muted); font-size: 9px; letter-spacing: .1em; text-transform: uppercase; }
.reading-header { position: relative; padding: 70px clamp(45px, 8vw, 105px); border: 1px solid var(--line); border-top: 5px solid var(--accent); background: var(--white); }
.reading-header h1 { max-width: 960px; font-size: clamp(50px, 6.4vw, 82px); line-height: .98; }
.reading-header > p { max-width: 800px; font-size: 21px; line-height: 1.55; }
.reading-layout { grid-template-columns: minmax(0, 740px) 260px; justify-content: center; gap: 75px; padding: 75px 45px; background: transparent; }
.article-body section { grid-template-columns: 42px 1fr; margin-bottom: 55px; }
.article-body h2 { font-size: 31px; font-weight: 500; }
.article-body section p { color: #374852; font-family: var(--serif); font-size: 20px; line-height: 1.82; }
.article-body blockquote { margin-top: 35px; background: var(--navy); }
.professional-phrase { margin: 58px 0 28px; padding: 28px 30px; border-top: 2px solid var(--coral); border-bottom: 1px solid var(--line); background: var(--white); }
.professional-phrase > span { display: flex; align-items: center; gap: 8px; color: var(--coral-dark); font-size: 9px; font-weight: 700; letter-spacing: .12em; }
.professional-phrase p { margin: 20px 0; font-family: var(--serif); font-size: 26px; font-style: italic; line-height: 1.35; }
.professional-phrase button { display: inline-flex; align-items: center; gap: 6px; padding: 0 0 3px; border: 0; border-bottom: 1px solid var(--line); background: transparent; color: var(--muted); font-size: 9px; cursor: pointer; }
.reading-aside { padding: 22px 0; border-top: 2px solid var(--ink); }
.reading-aside button span { text-align: left; }
.reading-progress-note { display: grid; gap: 8px; margin-top: 25px; padding: 17px; background: var(--paper-deep); }
.reading-progress-note strong { display: flex; align-items: center; gap: 8px; font-size: 9px; font-weight: 600; }
.reading-progress-note svg { color: var(--green); }
.reading-practice { margin: 20px 0 0; padding: clamp(40px, 6vw, 75px); background: #e9e5dc; }
.practice-intro { max-width: 760px; margin-bottom: 38px; }
.practice-intro h2 { margin: 18px 0 12px; font-size: clamp(39px, 5vw, 58px); font-weight: 500; letter-spacing: -.035em; }
.practice-intro > p { color: #59676f; font-family: var(--serif); font-size: 17px; line-height: 1.55; }
.reading-practice-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.writing-practice, .oral-reading-practice { display: flex; flex-direction: column; min-height: 540px; padding: 30px; border: 1px solid #d1cbc0; background: var(--white); }
.oral-reading-practice { background: var(--navy); color: #fff; }
.practice-card-heading { display: flex; align-items: center; justify-content: space-between; margin-bottom: 25px; }
.practice-card-heading > span { color: var(--coral-dark); font-family: var(--serif); font-size: 16px; font-style: italic; }
.practice-card-heading > div { display: flex; align-items: center; gap: 9px; }
.practice-card-heading h3 { margin: 0; font-size: 23px; font-weight: 500; }
.writing-practice > p, .oral-reading-practice > p { min-height: 68px; margin: 0 0 20px; color: #55636b; font-family: var(--serif); font-size: 16px; line-height: 1.5; }
.oral-reading-practice > p { color: #d4dade; }
.model-start { padding: 14px; border-left: 3px solid var(--coral); background: #f1eee7; }
.model-start span { display: block; margin-bottom: 6px; color: var(--muted); font-size: 8px; font-weight: 700; letter-spacing: .1em; }
.model-start q { font-family: var(--serif); font-size: 14px; }
.writing-practice > textarea, .oral-reading-practice textarea { flex: 1; width: 100%; min-height: 170px; margin-top: 17px; padding: 16px; resize: vertical; border: 1px solid var(--line); background: #fbfaf6; color: var(--ink); outline: 0; font-family: var(--serif); font-size: 16px; line-height: 1.55; }
.oral-reading-practice ol { display: grid; gap: 8px; margin: 0 0 20px; padding: 0; list-style: none; }
.oral-reading-practice li { display: flex; align-items: center; gap: 10px; color: #c8d0d4; font-family: var(--serif); font-size: 14px; }
.oral-reading-practice li span { display: grid; width: 23px; height: 23px; place-items: center; border: 1px solid #53636d; border-radius: 50%; color: var(--coral); font-family: var(--sans); font-size: 9px; }
.oral-reading-practice label { color: #91a0a8; font-size: 8px; font-weight: 700; letter-spacing: .1em; }
.oral-reading-practice textarea { flex: none; min-height: 112px; border-color: #43555f; background: #162a37; color: #fff; }
.practice-actions { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 14px; }
.practice-actions small { color: var(--muted); font-size: 9px; }
.oral-reading-practice .practice-actions small { color: #8fa0a8; }
.oral-reading-practice .secondary-button { border-color: #6c7b83; color: #fff; }
.completion-bar { margin-top: 14px; border: 1px solid var(--line); }

/* Vocabulario */
.vocabulary-page .page-intro { min-height: 280px; }
.vocab-filterbar { display: grid; grid-template-columns: minmax(260px, .8fr) auto 150px; align-items: center; gap: 12px; margin-bottom: 14px; padding: 14px; border: 1px solid var(--line); background: var(--white); }
.vocab-filterbar .search-field { border: 0; border-bottom: 1px solid var(--line); }
.vocab-type-tabs { display: flex; gap: 3px; }
.vocab-type-tabs button { min-height: 39px; padding: 0 11px; border: 1px solid transparent; background: transparent; color: var(--muted); font-size: 9px; font-weight: 700; cursor: pointer; }
.vocab-type-tabs button.active { border-color: var(--ink); color: var(--ink); }
.vocab-type-tabs span { margin-left: 4px; color: var(--coral-dark); }
.vocab-filterbar > select { min-height: 40px; padding: 0 9px; border: 1px solid var(--line); background: var(--paper); font-size: 10px; }
.vocabulary-layout { grid-template-columns: 340px 1fr; min-height: 680px; background: var(--white); }
.term-list-caption { display: flex; justify-content: space-between; padding: 15px 17px; border-bottom: 1px solid var(--line); color: var(--muted); font-size: 9px; text-transform: uppercase; }
.term-list-panel { max-height: 760px; }
.term-list { overflow-y: auto; }
.term-list > button { min-height: 69px; }
.term-list strong { font-family: var(--serif); font-weight: 500; }
.term-workbench { padding: clamp(42px, 6vw, 75px); }
.term-head h1 { font-size: clamp(50px, 6vw, 78px); }

/* Herramientas: las mismas funciones, lenguaje visual unificado */
.trainer-shell, .oral-toolbar, .oral-stage, .review-overview { border-color: var(--line); }
.input-column, .structure-panel { background: #e9e5dc; }
.timer-panel, .flashcard .back { background: var(--navy); }
.result-column, .result-placeholder, .flashcard-face { background: var(--white); }
.trainer-title h2, .stage-heading h2, .review-complete h2 { font-family: var(--serif); }

@media (max-width: 1180px) {
  .nav-frame { grid-template-columns: auto 1fr auto; gap: 18px; }
  .brand-note { display: none; }
  .main-nav button { padding: 0 9px; }
  .main-nav button span:not(.nav-count) { font-size: 10px; }
  .library-cover { grid-template-columns: 1fr .8fr; }
  .library-cover-copy { padding-inline: 55px; }
  .path-grid { grid-template-columns: 1fr 1fr; }
  .path-card:nth-child(2) { border-right: 0; }
  .path-card:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .reading-layout { grid-template-columns: minmax(0, 700px) 220px; gap: 45px; }
}

@media (max-width: 900px) {
  .sidebar { position: sticky; width: 100%; height: 64px; transform: none; }
  .nav-frame { display: flex; justify-content: space-between; width: calc(100% - 32px); }
  .main-nav { position: fixed; inset: 64px 0 0 auto; z-index: 80; display: flex; width: min(340px, 88vw); padding: 25px; flex-direction: column; justify-content: flex-start; transform: translateX(100%); background: var(--navy); transition: transform .25s ease; }
  .sidebar.is-open .main-nav { transform: translateX(0); }
  .main-nav button { width: 100%; min-height: 52px; justify-content: flex-start; padding: 0 13px; font-size: 13px; }
  .main-nav button span:not(.nav-count) { font-size: 12px; }
  .main-nav button::before { inset: 12px auto 12px 0; width: 3px; height: auto; transform: scaleY(0); }
  .main-nav button.active::before { height: auto; transform: scaleY(1); }
  .mobile-close { position: fixed; top: 12px; right: 16px; z-index: 90; display: none !important; }
  .sidebar.is-open .mobile-close { display: inline-grid !important; }
  .menu-button { display: inline-grid !important; }
  .sidebar-bottom { margin-left: auto; }
  .topbar { height: 43px; padding: 0 18px; }
  .topbar .menu-button { order: 3; margin-left: 10px; }
  .catalogue-mark { display: none; }
  .page { padding: 45px 22px 80px; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-card { min-height: 320px; border-top: 1px solid #2b414f; border-left: 0; }
  .library-cover { grid-template-columns: 1fr; margin: 0 -22px; }
  .library-cover-copy { min-height: 520px; padding: 60px 35px; }
  .cover-feature { min-height: 420px; padding: 42px 35px; }
  .path-grid { grid-template-columns: 1fr 1fr; }
  .premium-filter { grid-template-columns: 1fr; }
  .filter-selects { border-top: 1px solid var(--line); padding-top: 10px; }
  .filter-selects label:first-child { border-left: 0; }
  .reading-layout { grid-template-columns: 1fr; padding: 55px 30px; }
  .reading-aside { position: static; display: grid; grid-template-columns: 1fr 1fr; gap: 0 20px; }
  .reading-aside > .eyebrow, .reading-aside > p, .reading-progress-note { grid-column: 1 / -1; }
  .reading-practice-grid { grid-template-columns: 1fr; }
  .vocab-filterbar { grid-template-columns: 1fr; }
  .vocab-type-tabs { overflow-x: auto; }
  .vocabulary-layout { grid-template-columns: 300px 1fr; }
}

@media (max-width: 680px) {
  .sidebar .streak-pill { display: none; }
  .profile-row { display: none !important; }
  .topbar > div:first-of-type { margin-left: 0; }
  .topbar .menu-button { margin-left: auto; }
  .hero-copy { padding: 42px 27px; }
  .hero-copy h1 { font-size: 50px; }
  .hero-card { min-height: 280px; }
  .library-cover h1 { font-size: 65px; }
  .library-totals { gap: 20px; }
  .library-totals div { align-items: start; flex-direction: column; }
  .path-section, .catalogue-section { padding-top: 62px; }
  .editorial-heading { align-items: start; flex-direction: column; }
  .editorial-heading > p { text-align: left; }
  .path-grid { grid-template-columns: 1fr; }
  .path-card { border-right: 0; border-bottom: 1px solid var(--line); }
  .path-card:last-child { border-bottom: 0; }
  .filter-selects { display: grid; grid-template-columns: 1fr 1fr; }
  .filter-selects label { grid-template-columns: 1fr; align-items: start; border-left: 0; }
  .catalogue-tabs { overflow-x: auto; }
  .lesson-grid { grid-template-columns: 1fr; }
  .lesson-card { border-right: 0; }
  .lesson-card-body { grid-template-columns: 32px 1fr; }
  .reading-page { padding-inline: 0; }
  .reading-nav { padding-inline: 20px; }
  .reading-header { padding: 46px 25px; }
  .reading-header h1 { font-size: 45px; }
  .reading-layout { padding: 45px 23px; }
  .article-body section { grid-template-columns: 1fr; }
  .article-body section p { font-size: 18px; }
  .professional-phrase p { font-size: 22px; }
  .reading-aside { grid-template-columns: 1fr; }
  .reading-aside > * { grid-column: 1 !important; }
  .reading-practice { padding: 43px 20px; }
  .writing-practice, .oral-reading-practice { min-height: 500px; padding: 24px 20px; }
  .practice-actions { align-items: stretch; flex-direction: column; }
  .practice-actions .secondary-button { width: 100%; }
  .vocabulary-layout { grid-template-columns: 1fr; }
  .term-list-panel { max-height: 380px; }
  .term-workbench { padding: 38px 22px; }
  .vocab-type-tabs button { white-space: nowrap; }
}