@import url('https://fonts.googleapis.com/css2?family=Atkinson+Hyperlegible:wght@400;700&family=Nunito+Sans:wght@400;600;700;800&display=swap');

:root {
  --blue: #3949ab;
  --blue-dark: #273894;
  --blue-soft: #eef0ff;
  --teal: #16a6a1;
  --teal-dark: #087c79;
  --teal-soft: #e8f7f6;
  --gold: #f4b942;
  --gold-dark: #925f00;
  --gold-soft: #fff7df;
  --coral: #f27d60;
  --coral-dark: #a5412b;
  --coral-soft: #fff0ec;
  --green: #45a66b;
  --green-dark: #267746;
  --green-soft: #edf8f0;
  --paper: #faf7f0;
  --surface: #fffefa;
  --ink: #263347;
  --ink-soft: #58677d;
  --muted: #a8b0bd;
  --line: #d9dde4;
  --white: #fff;
  --font-ui: "Nunito Sans", ui-rounded, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-reading: "Atkinson Hyperlegible", Atkinson, Arial, sans-serif;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --shadow-1: 0 2px 6px rgb(38 51 71 / .08), 0 10px 26px rgb(38 51 71 / .06);
  --shadow-2: 0 5px 0 rgb(28 41 117 / .22), 0 12px 24px rgb(57 73 171 / .15);
  --focus: 0 0 0 3px var(--paper), 0 0 0 6px var(--blue);
  --stroke: 2.25px;
  --ease: 180ms cubic-bezier(.2, .7, .2, 1);
  color: var(--ink);
  font-family: var(--font-ui);
  background: var(--paper);
  font-synthesis: none;
}

*, *::before, *::after { box-sizing: border-box; }
html { color-scheme: light; scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; color: var(--ink); background: radial-gradient(circle at 50% 0, #fff 0, transparent 40%), var(--paper); font-family: var(--font-ui); line-height: 1.45; }
button, input, select, textarea { font: inherit; color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: var(--blue); }
:focus-visible { outline: none; box-shadow: var(--focus); }
.sr-only { position: absolute!important; width: 1px!important; height: 1px!important; padding: 0!important; margin: -1px!important; overflow: hidden!important; clip: rect(0,0,0,0)!important; white-space: nowrap!important; border: 0!important; }
.ui-icon { display: inline-block; flex: none; vertical-align: middle; }
.reading-text, .definition, .example-sentence, .instructions { font-family: var(--font-reading); }

.student-header { position: sticky; top: 0; z-index: 20; min-height: 78px; display: flex; align-items: center; gap: clamp(18px, 5vw, 72px); padding: 10px clamp(20px, 5vw, 64px); border-bottom: 1px solid var(--line); background: rgb(255 254 250 / .94); backdrop-filter: blur(14px); }
.student-brand { display: inline-flex; align-items: center; gap: 14px; color: var(--ink); text-decoration: none; font-size: 1.2rem; font-weight: 800; white-space: nowrap; }
.student-brand__mark { width: 48px; height: 48px; display: grid; place-items: center; color: var(--teal); border: 2px solid var(--teal); border-radius: 50%; background: var(--surface); }
.student-brand__mark .ui-waveform { transform: scale(.55); }
.student-nav { margin-left: auto; display: flex; align-self: stretch; gap: clamp(4px, 2vw, 28px); }
.student-nav__link { position: relative; min-width: 92px; min-height: 56px; display: flex; align-items: center; justify-content: center; gap: 10px; padding: 8px 12px; color: var(--ink-soft); text-decoration: none; border-radius: var(--radius-sm); font-weight: 700; transition: color var(--ease), background var(--ease); }
.student-nav__link::after { content: ""; position: absolute; left: 10px; right: 10px; bottom: -10px; height: 3px; border-radius: 3px 3px 0 0; background: transparent; }
.student-nav__link:hover { color: var(--blue); background: var(--blue-soft); }
.student-nav__link.is-active { color: var(--blue-dark); }
.student-nav__link.is-active::after { background: var(--blue); }

.ui-waveform { min-width: 44px; height: 34px; display: inline-flex; align-items: center; justify-content: center; gap: 2px; }
.ui-waveform i { width: 3px; height: var(--wave-height); max-height: 30px; display: block; border-radius: 99px; background: currentColor; }

.sound-circle { position: relative; width: var(--sound-size); height: var(--sound-size); min-width: 44px; min-height: 44px; display: inline-grid; place-items: center; padding: 6px; color: var(--teal); border: 2.25px solid currentColor; border-radius: 50%; background: var(--surface); box-shadow: 0 5px 0 rgb(38 51 71 / .08); transition: transform var(--ease), box-shadow var(--ease), color var(--ease), background var(--ease); }
button.sound-circle { cursor: pointer; }
button.sound-circle:hover:not(:disabled) { transform: translateY(-2px); box-shadow: 0 7px 0 rgb(38 51 71 / .08), 0 10px 20px rgb(22 166 161 / .12); }
button.sound-circle:active:not(:disabled) { transform: translateY(2px); box-shadow: 0 2px 0 rgb(38 51 71 / .08); }
.sound-circle__core { width: 100%; height: 100%; display: grid; place-items: center; border-radius: 50%; }
.sound-circle .ui-waveform { transform: scale(calc(var(--sound-size) / 100px)); }
.sound-circle--inactive { color: var(--muted); border-style: dashed; background: #f2f3f5; box-shadow: none; }
.sound-circle--selected { color: var(--white); background: var(--blue); border-color: var(--blue); box-shadow: 0 0 0 5px var(--paper), 0 0 0 8px var(--blue), 0 8px 18px rgb(57 73 171 / .22); }
.sound-circle--playing { color: var(--white); background: var(--teal); }
.sound-circle--completed { color: var(--white); border-color: var(--green); background: var(--green); }
.sound-circle__check { position: absolute; right: -4px; bottom: -3px; width: 28px; height: 28px; display: grid; place-items: center; color: var(--white); border: 3px solid var(--surface); border-radius: 50%; background: var(--green-dark); }
.sound-circle__arc { position: absolute; top: 18%; bottom: 18%; width: 16px; border: 2px solid var(--teal); border-top-color: transparent; border-bottom-color: transparent; border-radius: 50%; animation: soundPulse 900ms ease-in-out infinite alternate; }
.sound-circle__arc--left { right: calc(100% + 5px); border-left-color: transparent; }
.sound-circle__arc--right { left: calc(100% + 5px); border-right-color: transparent; }

.ui-button { min-height: 48px; display: inline-flex; align-items: center; justify-content: center; gap: 10px; padding: 10px 22px; border: 2px solid transparent; border-radius: 12px; text-decoration: none; font-weight: 800; line-height: 1.2; cursor: pointer; transition: transform var(--ease), box-shadow var(--ease), background var(--ease), color var(--ease), border-color var(--ease); }
.ui-button:hover:not(:disabled) { transform: translateY(-1px); }
.ui-button:active:not(:disabled) { transform: translateY(2px); box-shadow: none; }
.ui-button--primary { color: var(--white); background: var(--blue); box-shadow: 0 4px 0 var(--blue-dark); }
.ui-button--primary:hover:not(:disabled) { background: #4355c5; }
.ui-button--secondary { color: var(--teal-dark); border-color: var(--teal); background: var(--surface); box-shadow: 0 3px 0 rgb(8 124 121 / .28); }
.ui-button--success { color: var(--white); background: var(--green); box-shadow: 0 4px 0 var(--green-dark); }
.ui-button--quiet { color: var(--ink); border-color: var(--line); background: var(--surface); box-shadow: 0 3px 0 var(--muted); }
.ui-button:disabled, .ui-button.is-disabled { color: #5d6571; border-color: #c8cdd5; background: #e1e4e8; box-shadow: none; cursor: not-allowed; opacity: .82; }

.ui-card { overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--surface); box-shadow: var(--shadow-1); }
.ui-card__header { display: flex; align-items: flex-start; flex-wrap: wrap; gap: 8px 18px; padding: 22px 24px 0; }
.ui-card__header h2, .ui-card__header h3 { flex: 1 1 100%; margin: 0; line-height: 1.2; }
.ui-card__body { padding: 20px 24px; }
.ui-card__footer { display: flex; gap: 12px; flex-wrap: wrap; padding: 0 24px 24px; }
.ui-card--teal { border-top: 5px solid var(--teal); }
.ui-card--blue { border-top: 5px solid var(--blue); }
.ui-card--gold { border-top: 5px solid var(--gold); }
.ui-card--green { border-top: 5px solid var(--green); }
.ui-card--coral { border-top: 5px solid var(--coral); }
.ui-eyebrow { flex: 1 1 100%; color: var(--teal-dark); font-size: .8rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }

.ui-badge { min-height: 28px; display: inline-flex; align-items: center; gap: 6px; padding: 4px 11px; border: 1px solid currentColor; border-radius: 999px; font-size: .83rem; font-weight: 800; line-height: 1; }
.ui-badge--teal { color: var(--teal-dark); background: var(--teal-soft); }
.ui-badge--blue { color: var(--blue-dark); background: var(--blue-soft); }
.ui-badge--gold { color: var(--gold-dark); background: var(--gold-soft); }
.ui-badge--green { color: var(--green-dark); background: var(--green-soft); }
.ui-badge--coral { color: var(--coral-dark); background: var(--coral-soft); }
.ui-badge--neutral { color: var(--ink-soft); background: #f1f2f4; }

.ui-stars { display: inline-flex; align-items: center; gap: 5px; color: var(--muted); }
.ui-star { display: inline-grid; place-items: center; }
.ui-star .ui-icon { fill: transparent; }
.ui-star.is-earned { color: var(--gold); filter: drop-shadow(0 2px 0 rgb(146 95 0 / .2)); }
.ui-star.is-earned .ui-icon { fill: currentColor; }

.progress-path { --path-color: var(--line); position: relative; display: flex; align-items: flex-start; justify-content: space-between; gap: 8px; padding: 0; margin: 0; list-style: none; }
.progress-path::before { content: ""; position: absolute; z-index: 0; top: 28px; left: 5%; right: 5%; height: 4px; background: repeating-linear-gradient(90deg, var(--path-color) 0 10px, transparent 10px 16px); }
.progress-path__item { position: relative; z-index: 1; flex: 1 1 0; display: flex; flex-direction: column; align-items: center; min-width: 0; text-align: center; color: var(--ink-soft); }
.progress-path__node { width: 58px; height: 58px; display: grid; place-items: center; color: var(--muted); border: 2px solid var(--line); border-radius: 50%; background: var(--surface); font-weight: 800; }
.progress-path__node .ui-waveform { transform: scale(.5); }
.progress-path__label { margin-top: 8px; color: var(--ink); font-weight: 800; }
.progress-path__item small { display: block; max-width: 140px; color: var(--ink-soft); font-family: var(--font-reading); }
.progress-path__item--completed .progress-path__node { color: var(--white); border-color: var(--green); background: var(--green); }
.progress-path__item--current .progress-path__node { color: var(--blue); border-color: var(--blue); box-shadow: 0 0 0 5px var(--blue-soft); }

.ui-toggle-row { position: relative; min-height: 62px; display: flex; align-items: center; gap: 18px; padding: 10px 0; }
.ui-toggle-row > span:first-child { flex: 1; }
.ui-toggle-row label { display: block; font-weight: 800; cursor: pointer; }
.ui-toggle-row small { display: block; margin-top: 2px; color: var(--ink-soft); font-family: var(--font-reading); }
.ui-toggle__input { position: absolute; right: 0; width: 56px; height: 32px; opacity: 0; cursor: pointer; }
.ui-toggle__track { position: relative; width: 56px; height: 32px; flex: none; border-radius: 999px; background: #d5d8dd; transition: background var(--ease); pointer-events: none; }
.ui-toggle__track span { position: absolute; top: 3px; left: 3px; width: 26px; height: 26px; border-radius: 50%; background: var(--white); box-shadow: 0 1px 4px rgb(38 51 71 / .25); transition: transform var(--ease); }
.ui-toggle__input:checked + .ui-toggle__track { background: var(--teal); }
.ui-toggle__input:checked + .ui-toggle__track span { transform: translateX(24px); }
.ui-toggle__input:focus-visible + .ui-toggle__track { box-shadow: var(--focus); }
.ui-toggle__input:disabled + .ui-toggle__track { opacity: .55; }

.app-shell { width: min(1400px, calc(100% - 40px)); margin: 0 auto; padding: 38px 0 64px; }
.page-heading { margin-bottom: 24px; }
.page-heading h1 { max-width: 1000px; margin: 5px 0; color: #142b58; font-size: clamp(2rem, 4vw, 3rem); line-height: 1.1; }
.page-heading p { margin: 0; color: var(--ink-soft); font-family: var(--font-reading); font-size: 1.12rem; }
.dashboard-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(260px, 360px); gap: 24px; }
.card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; }
.stat { display: flex; align-items: center; gap: 18px; }
.stat__icon { width: 66px; height: 66px; display: grid; place-items: center; border-radius: 50%; background: var(--teal-soft); color: var(--teal); }
.stat__value { display: block; font-size: 2.1rem; font-weight: 800; line-height: 1; }
.stat__label { color: var(--ink-soft); }

@keyframes soundPulse { to { transform: scaleX(1.18); opacity: .55; } }
@keyframes gentleWobble { 0%,100% { transform: translateX(0); } 35% { transform: translateX(-5px); } 70% { transform: translateX(4px); } }
.gentle-incorrect { color: var(--coral)!important; border-color: var(--coral)!important; animation: gentleWobble 260ms ease-out; }

@media (max-width: 860px) {
  .student-header { padding-inline: 16px; }
  .student-brand > span:last-child { display: none; }
  .student-nav { flex: 1; justify-content: flex-end; gap: 2px; }
  .student-nav__link { min-width: 54px; padding-inline: 8px; }
  .student-nav__link span { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }
  .dashboard-grid { grid-template-columns: 1fr; }
  .progress-path__label, .progress-path__item small { font-size: .78rem; }
}

@media (max-width: 560px) {
  .student-header { min-height: 66px; gap: 8px; }
  .student-brand__mark { width: 42px; height: 42px; }
  .student-nav__link { min-width: 46px; }
  .app-shell { width: min(100% - 24px, 1400px); padding-top: 24px; }
  .ui-card__header { padding: 18px 18px 0; }
  .ui-card__body { padding: 18px; }
  .ui-card__footer { padding: 0 18px 18px; }
  .ui-button { width: 100%; }
  .progress-path { overflow-x: auto; justify-content: flex-start; padding: 7px 4px 12px; }
  .progress-path::before { display: none; }
  .progress-path__item { min-width: 98px; }
}

@media (prefers-contrast: more) {
  :root { --line: #707784; --ink-soft: #394455; }
  .ui-card, .sound-circle, .ui-button { border-width: 3px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms!important; animation-iteration-count: 1!important; transition-duration: .01ms!important; }
  .sound-circle__arc { display: none; }
}

@media print {
  .student-header, .ui-button, .ui-toggle__track { display: none!important; }
  body { background: #fff; }
  .app-shell { width: 100%; padding: 0; }
  .ui-card { break-inside: avoid; box-shadow: none; }
}

/* Teacher portal foundation ------------------------------------------------- */
.teacher-account { margin-left: auto; display: flex; align-items: center; gap: 16px; font-weight: 700; }
.teacher-main { max-width: 1180px; }
.teacher-create-card { margin-bottom: 32px; }
.teacher-create-form label { display: block; margin-bottom: 8px; font-weight: 800; }
.teacher-create-form > div { display: flex; gap: 12px; }
.teacher-create-form input { flex: 1; min-height: 50px; padding: 10px 14px; border: 2px solid var(--line); border-radius: 12px; background: var(--white); }
.teacher-class-section { margin-top: 28px; }
.teacher-class-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(270px, 1fr)); gap: 20px; margin-top: 10px; }
.teacher-class-card .ui-card__header h2 { font-size: 1.35rem; }
.teacher-code-label { display: block; color: var(--ink-soft); font-size: .82rem; font-weight: 800; text-transform: uppercase; letter-spacing: .08em; }
.teacher-class-code { display: block; margin-top: 6px; color: var(--blue-dark); font-size: 2rem; letter-spacing: .18em; }
.teacher-empty { padding: 28px; }
.teacher-empty h2 { margin-top: 0; }
.student-class-panel { margin-bottom: 24px; padding: 22px; }
.student-class-panel > p { margin: 8px 0 16px; color: var(--ink-soft); }
.student-class-list { display: grid; gap: 10px; margin: 12px 0 16px; }
.student-class-list > div { display: flex; justify-content: space-between; gap: 16px; padding: 13px 16px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); }
.student-class-list span { color: var(--ink-soft); font-size: .9rem; }
.student-join-card { max-width: 700px; }
.student-join-card .join-form { padding: 24px; }
.teacher-class-card .ui-card__footer { display: flex; flex-wrap: wrap; gap: 10px; }
.teacher-back-link { display: inline-flex; align-items: center; gap: 6px; margin-bottom: 20px; color: var(--blue); font-weight: 800; }
.teacher-back-link .ui-icon { width: 18px; }
.teacher-inline-code { display: inline-block; margin-left: 4px; letter-spacing: .14em; color: var(--teal-dark); }
.teacher-roster-card .ui-card__header { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.teacher-table-wrap { overflow-x: auto; }
.teacher-roster-table { width: 100%; border-collapse: collapse; }
.teacher-roster-table th, .teacher-roster-table td { padding: 14px 16px; border-top: 1px solid var(--line); text-align: left; }
.teacher-roster-table th { color: var(--ink-soft); font-size: .78rem; letter-spacing: .05em; text-transform: uppercase; }
.teacher-roster-empty { padding: 32px !important; text-align: center !important; color: var(--ink-soft); }
@media (max-width: 620px) {
  .teacher-account > span { display: none; }
  .teacher-create-form > div { flex-direction: column; }
}

/* Student portal page modules ------------------------------------------------ */
.student-main { width: min(1390px, calc(100% - 48px)); margin: 0 auto; padding: 34px 0 64px; }
.student-header .student-brand .sound-circle { width: 46px; height: 46px; min-width: 46px; }
.student-nav > a { position: relative; min-width: 118px; min-height: 58px; display: flex; align-items: center; justify-content: center; gap: 10px; padding: 10px 14px; color: var(--ink-soft); border-radius: 10px; text-decoration: none; font-weight: 700; }
.student-nav > a::after { content: ""; position: absolute; height: 3px; left: 10px; right: 10px; bottom: -10px; border-radius: 3px 3px 0 0; }
.student-nav > a:hover { color: var(--blue); background: var(--blue-soft); }
.student-nav > a.is-active { color: var(--blue-dark); }
.student-nav > a.is-active::after { background: var(--blue); }
.student-nav .ui-icon, .student-main .ui-icon { width: 24px; height: 24px; }

.sound-circle { --sound-size: 74px; width: var(--sound-size); height: var(--sound-size); }
.sound-circle--small { --sound-size: 56px; }
.sound-circle--tiny { --sound-size: 42px; }
.sound-circle--teal { color: var(--teal); }
.sound-circle--indigo { color: var(--blue); }
.sound-circle--gold { color: #d88d00; }
.sound-circle--coral { color: var(--coral); }
.sound-circle--green { color: var(--green); }
.sound-circle--neutral { color: var(--muted); }
.sound-circle.is-selected, .sound-circle.is-playing { color: #fff; background: var(--blue); border-color: var(--blue); box-shadow: 0 0 0 4px var(--paper), 0 0 0 7px var(--blue); }
.mini-wave { height: 28px; display: inline-flex; align-items: center; justify-content: center; gap: 2px; }
.mini-wave i { width: 3px; height: 11px; display: block; border-radius: 99px; background: currentColor; }
.mini-wave i:nth-child(2), .mini-wave i:nth-child(4) { height: 20px; }
.mini-wave i:nth-child(3) { height: 28px; }
.sound-circle--tiny .mini-wave { transform: scale(.65); }
.sound-circle--small .mini-wave { transform: scale(.82); }

.button { min-height: 46px; display: inline-flex; align-items: center; justify-content: center; gap: 9px; padding: 10px 21px; color: var(--ink); border: 2px solid transparent; border-radius: 10px; background: var(--surface); text-decoration: none; font-weight: 800; line-height: 1.2; cursor: pointer; transition: transform var(--ease), box-shadow var(--ease), color var(--ease), background var(--ease); }
.button:hover { transform: translateY(-1px); }
.button:active { transform: translateY(2px); box-shadow: none; }
.button--primary { color: #fff; background: var(--blue); box-shadow: 0 4px 0 var(--blue-dark); }
.button--secondary, .button--teal { color: var(--teal-dark); border-color: var(--teal); box-shadow: 0 3px 0 rgb(8 124 121 / .25); }
.button--teal { color: #fff; background: var(--teal); }
.button--outline { color: var(--blue); border-color: var(--blue); background: var(--surface); }
.button--wide { width: 100%; }
.button--large { min-height: 58px; font-size: 1.08rem; }
.button--small { min-height: 40px; padding: 8px 14px; font-size: .9rem; }
.text-button, .center-link, .back-link { display: inline-flex; align-items: center; justify-content: center; gap: 7px; color: var(--blue); border: 0; background: transparent; text-decoration: none; font-weight: 700; cursor: pointer; }
.center-link { width: 100%; margin-top: 14px; }
.back-link { margin-bottom: 16px; }

.card { border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--surface); box-shadow: var(--shadow-1); }
.section-kicker, .eyebrow { margin: 0; color: var(--teal-dark); font-size: .79rem; font-weight: 800; letter-spacing: .065em; text-transform: uppercase; }
.status-badge { display: inline-flex; align-items: center; justify-content: center; padding: 5px 13px; color: var(--teal-dark); border-radius: 8px; background: var(--teal-soft); font-size: .82rem; font-weight: 800; }
.status-badge--gold { color: var(--gold-dark); background: var(--gold-soft); }
.status-badge--green { color: var(--green-dark); background: var(--green-soft); }
.round-stat { width: 54px; height: 54px; flex: none; display: inline-grid; place-items: center; color: var(--teal-dark); border-radius: 50%; background: var(--teal-soft); font-weight: 800; }
.round-stat--gold { color: #d58c00; background: var(--gold-soft); }
.round-stat--green { color: var(--green-dark); background: var(--green-soft); }
.round-stat--indigo { color: var(--blue); background: var(--blue-soft); }
.round-stat--coral { color: var(--coral-dark); background: var(--coral-soft); }
.compact-path { display: flex; align-items: center; min-width: 0; }
.compact-path__node { width: 36px; height: 36px; flex: none; display: grid; place-items: center; color: var(--muted); border: 2px solid var(--line); border-radius: 50%; background: var(--surface); }
.compact-path__node .ui-icon { width: 18px; height: 18px; }
.compact-path__node .mini-wave { transform: scale(.45); }
.compact-path__node.is-done { color: #fff; border-color: var(--green); background: var(--green); }
.compact-path__node.is-current { color: var(--teal); border-color: var(--teal); box-shadow: 0 0 0 4px var(--teal-soft); }
.compact-path__node.is-green { color: #fff; border-color: var(--green); background: var(--green); }
.compact-path__line { width: clamp(8px, 2.5vw, 36px); height: 3px; flex: 1; background: repeating-linear-gradient(90deg, var(--line) 0 7px, transparent 7px 12px); }

/* Access */
.student-access { min-height: 100svh; display: grid; grid-template-rows: auto 1fr auto; place-items: center; padding: 24px; background: radial-gradient(circle at 50% 44%, #fff 0 24%, transparent 56%), var(--paper); }
.student-access__brand { align-self: start; justify-self: start; display: inline-flex; align-items: center; gap: 14px; color: var(--ink); text-decoration: none; font-size: 1.25rem; font-weight: 800; }
.student-access__brand .sound-circle { --sound-size: 56px; }
.student-access__trail { position: absolute; top: 28%; left: 6vw; right: 6vw; z-index: 0; display: flex; align-items: center; gap: 11px; color: var(--muted); opacity: .78; }
.student-access__trail > span { height: 2px; flex: 1; background: repeating-linear-gradient(90deg, var(--line) 0 6px, transparent 6px 12px); }
.student-access__trail > b { width: 68px; height: 68px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 50%; background: rgb(250 247 240 / .88); font-family: var(--font-reading); font-size: 1.35rem; }
.student-access__trail > b.is-word { color: var(--teal-dark); border-color: var(--teal); }
.access-card { position: relative; z-index: 1; width: min(100%, 620px); align-self: center; padding: clamp(28px, 5vw, 48px); text-align: center; border: 1px solid var(--line); border-radius: 20px; background: rgb(255 254 250 / .97); box-shadow: var(--shadow-1); }
.access-card h1 { margin: 8px 0 4px; color: #142b58; font-size: clamp(2rem, 5vw, 2.6rem); }
.access-card > p:not(.eyebrow):not(.local-demo-note) { margin: 0 0 26px; color: var(--ink-soft); font-family: var(--font-reading); font-size: 1.08rem; }
.provider-mark { width: 36px; height: 36px; display: grid; place-items: center; color: var(--blue); border-radius: 50%; background: #fff; font-size: 1.25rem; font-weight: 800; }
.local-demo-note { margin: 10px 0; color: var(--ink-soft); font-size: .8rem; }
.or-divider { display: flex; align-items: center; gap: 16px; margin: 22px 0; color: var(--ink-soft); }
.or-divider::before, .or-divider::after { content: ""; height: 1px; flex: 1; background: var(--line); }
.join-form { display: grid; gap: 12px; text-align: left; }
.join-form label { font-weight: 700; }
.class-code-input { width: 100%; height: 64px; padding: 8px 20px; color: var(--blue-dark); border: 2px solid var(--teal); border-radius: 12px; background: #fff; text-align: center; font-size: 1.65rem; font-weight: 800; letter-spacing: .3em; text-transform: uppercase; }
.join-form p { margin: 0; color: var(--ink-soft); text-align: center; font-family: var(--font-reading); font-size: .87rem; }
.join-form .form-error { color: var(--coral-dark); }
.access-card > .text-button { margin-top: 18px; }
.headphones-note { position: relative; z-index: 1; display: flex; align-items: center; gap: 14px; color: var(--ink-soft); font-family: var(--font-reading); }
.headphones-note .ui-icon { width: 42px; height: 42px; color: var(--teal); padding: 8px; border: 1px solid var(--line); border-radius: 50%; }

/* Home and assignment surfaces */
.dashboard-grid { grid-template-columns: minmax(0, 1fr) 350px; align-items: start; }
.continue-card, .assignment-strip, .weekly-summary, .review-callout { padding: 24px; }
.continue-card__heading { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.continue-card__heading h2 { margin: 8px 0 0; }
.teacher-line { display: flex; align-items: center; gap: 7px; color: var(--ink-soft); }
.teacher-line .ui-icon { width: 18px; height: 18px; color: var(--teal); }
.continue-card__progress { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; margin: 24px 0; }
.continue-card__progress > div { min-width: 0; }
.continue-card__progress span:first-child { display: block; color: var(--ink-soft); font-size: .78rem; text-transform: uppercase; }
.continue-card__progress strong { display: block; margin: 8px 0 16px; color: var(--teal-dark); font-size: 1.3rem; }
.next-words { padding-left: 28px; border-left: 1px solid var(--line); }
.next-words > div { display: flex; gap: 24px; }
.next-words > div > span { display: grid; justify-items: center; gap: 5px; }
.next-words small { color: var(--ink-soft); }
.weekly-summary dl, .side-summary dl { margin: 8px 0 0; }
.weekly-summary dl > div, .side-summary dl > div { display: flex; align-items: center; gap: 16px; padding: 16px 0; border-bottom: 1px solid var(--line); }
.weekly-summary dt, .side-summary dt { color: var(--ink-soft); }
.weekly-summary dt strong, .side-summary dt strong { display: block; color: var(--teal-dark); font-size: 1.9rem; }
.assignment-strip { grid-column: 1; }
.review-callout { grid-column: 2; }
.mini-assignment-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 14px; }
.mini-assignment-card { min-width: 0; padding: 16px; border: 1px solid var(--line); border-radius: 12px; }
.mini-assignment-card h3 { margin: 0 0 5px; font-size: 1rem; }
.mini-assignment-card p { margin: 0; color: var(--ink-soft); font-size: .85rem; }
.mini-assignment-card dl { display: flex; justify-content: space-between; gap: 12px; margin: 16px 0; }
.mini-assignment-card dt { color: var(--ink-soft); font-size: .7rem; text-transform: uppercase; }
.mini-assignment-card dd { margin: 2px 0 0; font-weight: 700; }
.review-callout__count { display: flex; align-items: center; gap: 14px; margin: 18px 0; }
.review-callout__count strong { color: var(--coral); font-size: 2.4rem; }

.two-column-page { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 34px; align-items: start; }
.page-sidebar { display: grid; gap: 20px; padding-top: 54px; }
.segmented-control { width: fit-content; display: inline-flex; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; background: #fff; }
.segmented-control button, .segmented-control > label > span { min-width: 138px; min-height: 42px; display: grid; place-items: center; padding: 7px 16px; color: var(--ink-soft); border: 0; border-right: 1px solid var(--line); background: transparent; cursor: pointer; font-weight: 700; }
.segmented-control button:last-child, .segmented-control > label:last-child > span { border-right: 0; }
.segmented-control button.is-active, .segmented-control input:checked + span { color: #fff; background: var(--blue); }
.group-heading { margin: 24px 0 8px; font-size: 1.3rem; }
.assignment-list { display: grid; gap: 8px; }
.assignment-row { display: grid; grid-template-columns: 62px minmax(180px, 1.2fr) minmax(170px, 1fr) minmax(120px, .65fr) auto; align-items: center; gap: 18px; padding: 20px; border: 1px solid var(--line); border-radius: 14px; background: var(--surface); box-shadow: var(--shadow-1); }
.assignment-row__title h2 { margin: 0; font-size: 1.1rem; }
.assignment-row__title p { margin: 4px 0; color: var(--ink-soft); font-size: .85rem; }
.assignment-row__title strong { color: var(--teal-dark); font-size: .82rem; }
.assignment-row dl { display: flex; gap: 24px; margin: 0; }
.assignment-row dt { color: var(--ink-soft); font-size: .68rem; text-transform: uppercase; }
.assignment-row dd { margin: 2px 0 0; font-size: .86rem; }
.assignment-row dd.due-today { color: var(--teal-dark); }
.assignment-row dd.due-tomorrow { color: var(--gold-dark); }
.side-summary, .page-sidebar .review-callout { padding: 24px; }

.assignment-hero { display: flex; align-items: center; justify-content: space-between; gap: 24px; margin-bottom: 26px; }
.assignment-hero h1 { margin: 4px 0; color: #142b58; font-size: clamp(2rem, 4vw, 2.8rem); }
.assignment-hero p { margin: 0; color: var(--ink-soft); }
.assignment-detail-layout { display: grid; grid-template-columns: minmax(0, 1fr) 230px; gap: 42px; align-items: center; }
.assignment-detail-card { padding: 28px 34px; }
.assignment-facts { display: grid; grid-template-columns: repeat(3, 1fr); border-bottom: 1px solid var(--line); }
.assignment-facts > div { display: flex; align-items: center; gap: 16px; padding: 0 22px 20px; border-right: 1px solid var(--line); }
.assignment-facts > div:first-child { padding-left: 0; }
.assignment-facts > div:last-child { border: 0; }
.assignment-facts p { margin: 0; }
.assignment-facts strong, .assignment-facts span { display: block; }
.assignment-facts strong { color: var(--teal-dark); font-size: 1.05rem; }
.assignment-facts span { color: var(--ink-soft); }
.assignment-detail-card h2 { margin: 20px 0 10px; color: var(--ink-soft); font-size: .83rem; letter-spacing: .03em; text-transform: uppercase; }
.journey ol { position: relative; display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; padding: 8px 0; margin: 0; list-style: none; }
.journey ol::before { content: ""; position: absolute; top: 36px; left: 8%; right: 8%; height: 3px; background: linear-gradient(90deg, var(--teal), var(--blue), var(--gold), var(--coral), var(--green)); }
.journey li { position: relative; display: grid; justify-items: center; text-align: center; }
.journey li b { position: absolute; top: 43px; width: 22px; height: 22px; display: grid; place-items: center; color: #fff; border-radius: 50%; background: var(--blue); font-size: .75rem; }
.journey li strong { margin-top: 12px; }
.journey li span { color: var(--ink-soft); font-family: var(--font-reading); font-size: .83rem; }
.support-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.support-grid > span { display: grid; grid-template-columns: 42px 1fr; align-items: center; column-gap: 12px; padding: 12px 16px; border: 1px solid var(--line); border-radius: 10px; }
.support-grid .ui-icon { grid-row: 1 / 3; color: var(--teal); }
.support-grid small { color: var(--ink-soft); }
.how-grid { display: grid; grid-template-columns: repeat(3, 1fr); }
.how-grid p { display: flex; gap: 12px; padding: 0 18px; border-right: 1px solid var(--line); }
.how-grid p:last-child { border: 0; }
.how-grid p > b { width: 30px; height: 30px; flex: none; display: grid; place-items: center; color: var(--blue); border-radius: 50%; background: var(--blue-soft); }
.how-grid p span, .how-grid p strong { display: block; }
.how-grid p span { color: var(--ink-soft); font-family: var(--font-reading); }
.how-grid p strong { color: var(--ink); font-family: var(--font-ui); }
.headphones-card { padding: 34px 22px; text-align: center; }
.headphones-card > .ui-icon { width: 96px; height: 96px; padding: 20px; color: var(--teal); border-radius: 50%; background: var(--teal-soft); }

/* Review */
.review-layout { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 28px; align-items: start; }
.review-layout > aside { display: grid; gap: 20px; }
.review-overview { display: grid; grid-template-columns: 1fr 1fr 1.25fr; align-items: center; padding: 18px 24px; }
.review-overview > div { display: flex; align-items: center; gap: 14px; min-height: 72px; border-right: 1px solid var(--line); }
.review-overview > div:nth-child(2) { justify-content: center; }
.review-overview > div strong { color: var(--teal-dark); font-size: 1.9rem; }
.review-list { margin-top: 16px; overflow: hidden; }
.review-row { display: grid; grid-template-columns: 58px minmax(160px, 1fr) auto minmax(170px, .8fr) auto; align-items: center; gap: 16px; padding: 16px 20px; border-bottom: 1px solid var(--line); }
.review-row:last-child { border-bottom: 0; }
.review-row h2 { margin: 0; font-size: 1.08rem; }
.review-row p { margin: 3px 0 0; color: var(--ink-soft); font-size: .82rem; }
.review-row--mastered { grid-template-columns: 58px 1fr minmax(200px, 1fr) auto; }
.review-row--mastered > strong { display: flex; align-items: center; gap: 7px; color: var(--green-dark); }
.growth-card, .tips-card { padding: 24px; }
.growth-card > div { display: grid; grid-template-columns: 64px 1fr; gap: 8px 16px; }
.growth-card .sound-circle { grid-row: 1 / 3; }
.growth-card h2, .growth-card p { margin: 0; }
.growth-card { min-height: 220px; color: var(--teal-dark); background: linear-gradient(145deg, #fff, var(--teal-soft)); }
.growth-sprout { display: block; margin: 20px auto 0; color: var(--teal); text-align: center; font-size: 4rem; line-height: 1; }
.tips-card p { display: flex; align-items: center; gap: 10px; }
.tips-card > strong { display: block; text-align: center; }
.empty-state { padding: 48px 22px; text-align: center; }

/* Progress */
.metric-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; margin-bottom: 22px; }
.metric-grid article { display: flex; align-items: center; gap: 16px; padding: 20px; }
.metric-grid p { margin: 0; color: var(--ink-soft); }
.metric-grid p strong { display: block; color: var(--teal-dark); font-size: 2rem; line-height: 1; }
.progress-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.chart-card, .mastery-card, .achievement-card, .improving-card { padding: 22px; }
.chart-card h2, .mastery-card h2, .achievement-card h2, .improving-card h2 { margin: 0; }
.chart-card > p, .mastery-card > p, .improving-card > p { margin: 4px 0 14px; color: var(--ink-soft); }
.bar-chart { height: 220px; display: flex; align-items: end; gap: 12px; padding: 28px 10px 0; border-bottom: 1px solid var(--line); background: repeating-linear-gradient(0deg, transparent 0 47px, var(--line) 48px 49px); }
.bar-chart > div { height: 100%; flex: 1; display: flex; flex-direction: column; justify-content: end; align-items: center; }
.bar-chart > div > span { position: relative; width: min(50px, 70%); min-height: 5px; border-radius: 6px 6px 0 0; background: linear-gradient(#8cdfda, var(--teal)); }
.bar-chart b { position: absolute; left: 50%; top: -24px; transform: translateX(-50%); }
.bar-chart small { min-height: 26px; margin-top: 7px; color: var(--ink-soft); white-space: nowrap; }
.insight { padding: 12px; border-radius: 10px; background: var(--teal-soft); }
.mastery-card ol { position: relative; display: grid; grid-template-columns: repeat(5, 1fr); gap: 6px; padding: 14px 0; margin: 0; list-style: none; }
.mastery-card ol::before { content: ""; position: absolute; top: 44px; left: 9%; right: 9%; height: 4px; background: linear-gradient(90deg, var(--green) 0 62%, var(--blue) 62% 78%, var(--line) 78%); }
.mastery-card li { position: relative; display: grid; justify-items: center; text-align: center; }
.mastery-card li strong { margin-top: 7px; }
.mastery-card li span { color: var(--ink-soft); font-size: .8rem; }
.mastery-card li.is-mastered span { color: var(--green-dark); }
.mastery-card li.is-current span { color: var(--blue); }
.mastery-summary { display: grid; grid-template-columns: 1fr 1fr; margin-top: 12px; border-radius: 12px; background: #f7f7f6; }
.mastery-summary > span { display: flex; align-items: center; justify-content: center; gap: 10px; padding: 14px; }
.achievement-card > div { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 14px; }
.achievement-card article { min-height: 120px; display: grid; grid-template-columns: 58px 1fr; align-items: center; padding: 10px; border: 1px solid var(--line); border-radius: 10px; }
.achievement-card article .round-stat { grid-row: 1 / 3; }
.achievement-card article p { margin: 0; color: var(--ink-soft); font-size: .79rem; }
.improving-card > div { display: grid; grid-template-columns: 42px minmax(100px, .7fr) minmax(180px, 1fr) auto; align-items: center; gap: 12px; margin: 8px 0; }

/* Settings */
.settings-form { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.settings-panel { padding: 22px 26px; }
.settings-panel h2 { min-height: 48px; display: flex; align-items: center; gap: 12px; margin: 0 0 12px; }
.setting-row { min-height: 80px; display: flex; align-items: center; gap: 20px; padding: 14px 0; border-bottom: 1px solid var(--line); }
.setting-row:last-child { border-bottom: 0; }
.setting-row > span:first-child { flex: 1; }
.setting-row strong, .setting-row small { display: block; }
.setting-row small { color: var(--ink-soft); font-family: var(--font-reading); }
.setting-row > input[type="checkbox"] { position: absolute; opacity: 0; }
.setting-row > i { position: relative; width: 56px; height: 32px; flex: none; border-radius: 999px; background: #d3d6db; transition: background var(--ease); }
.setting-row > i::after { content: ""; position: absolute; top: 3px; left: 3px; width: 26px; height: 26px; border-radius: 50%; background: #fff; box-shadow: 0 1px 4px rgb(38 51 71 / .25); transition: transform var(--ease); }
.setting-row > input:checked + i { background: var(--teal); }
.setting-row > input:checked + i::after { transform: translateX(24px); }
.setting-row > input:focus-visible + i { box-shadow: var(--focus); }
.range-row input[type="range"] { min-width: 160px; flex: 1; accent-color: var(--teal); }
.range-row output { min-width: 48px; color: var(--ink-soft); }
.segmented-setting { align-items: center; border: 0; margin: 0; }
.segmented-setting legend { flex: 1; font-weight: 800; }
.segmented-setting input { position: absolute; opacity: 0; }
.segmented-setting .segmented-control { margin-left: auto; }
.account-panel dl { display: flex; gap: 42px; }
.account-panel dt { color: var(--ink-soft); }
.account-panel dd { margin: 3px 0; font-weight: 700; }
.account-panel .text-button { display: flex; margin: 12px auto 0; }
.supports-panel > p { color: var(--ink-soft); }
.supports-panel > div { display: grid; grid-template-columns: repeat(3, 1fr); }
.supports-panel > div > span { display: grid; grid-template-columns: 42px 1fr; align-items: center; gap: 2px 10px; padding: 12px; border-right: 1px solid var(--line); }
.supports-panel > div > span:last-child { border-right: 0; }
.supports-panel > div .ui-icon, .supports-panel > div .sound-circle { grid-row: 1 / 3; }
.supports-panel small { color: var(--ink-soft); }
.settings-save { grid-column: 1 / -1; min-height: 84px; display: flex; align-items: center; justify-content: flex-end; gap: 20px; padding: 14px 22px; border: 1px solid var(--line); border-radius: 14px; background: linear-gradient(90deg, var(--teal-soft), var(--surface)); }
.save-status { margin-right: auto; color: var(--green-dark); }

@media (max-width: 1100px) {
  .dashboard-grid, .two-column-page, .assignment-detail-layout, .review-layout { grid-template-columns: 1fr; }
  .page-sidebar, .review-layout > aside { grid-template-columns: repeat(2, minmax(0, 1fr)); padding-top: 0; }
  .assignment-strip, .review-callout { grid-column: auto; }
  .assignment-row { grid-template-columns: 58px minmax(170px, 1fr) minmax(170px, .9fr) auto; }
  .assignment-row dl { display: none; }
  .headphones-card { display: flex; align-items: center; gap: 22px; text-align: left; }
  .headphones-card > .ui-icon { width: 72px; height: 72px; }
  .review-row { grid-template-columns: 52px minmax(150px, 1fr) auto minmax(150px, .8fr); }
  .review-row > .button { grid-column: 2 / -1; justify-self: end; }
  .metric-grid { grid-template-columns: repeat(2, 1fr); }
  .settings-form { grid-template-columns: 1fr; }
  .settings-save { grid-column: auto; }
}

@media (max-width: 760px) {
  .student-main { width: min(100% - 28px, 1390px); padding-top: 24px; }
  .student-nav > a { min-width: 48px; }
  .student-nav > a span { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }
  .student-access__brand > span:last-child, .student-access__trail { display: none; }
  .access-card { padding: 26px 20px; }
  .headphones-note { font-size: .87rem; }
  .continue-card__progress, .assignment-facts, .support-grid, .how-grid { grid-template-columns: 1fr; }
  .next-words { padding: 20px 0 0; border: 0; border-top: 1px solid var(--line); }
  .mini-assignment-grid { grid-template-columns: 1fr; }
  .page-sidebar, .review-layout > aside { grid-template-columns: 1fr; }
  .assignment-row { grid-template-columns: 48px 1fr auto; padding: 14px; }
  .assignment-row .sound-circle { --sound-size: 46px; }
  .assignment-row__path { grid-column: 2 / -1; }
  .assignment-row > .button { grid-column: 2 / -1; width: 100%; }
  .assignment-facts > div { padding: 12px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .journey ol, .mastery-card ol { overflow-x: auto; grid-template-columns: repeat(5, 112px); padding-bottom: 16px; }
  .how-grid p { border: 0; padding: 5px 0; }
  .review-overview { grid-template-columns: 1fr; }
  .review-overview > div { border-right: 0; border-bottom: 1px solid var(--line); }
  .review-overview > .button { margin-top: 14px; }
  .review-row, .review-row--mastered { grid-template-columns: 48px 1fr; }
  .review-row > .status-badge { justify-self: start; }
  .review-row__path, .review-row--mastered > .compact-path, .review-row--mastered > strong { grid-column: 2; }
  .review-row > .button { grid-column: 2; width: 100%; }
  .progress-grid { grid-template-columns: 1fr; }
  .achievement-card > div { grid-template-columns: 1fr; }
  .improving-card > div { grid-template-columns: 42px 1fr; }
  .improving-card .compact-path, .improving-card .button { grid-column: 2; }
  .supports-panel > div { grid-template-columns: 1fr; }
  .supports-panel > div > span { border-right: 0; border-bottom: 1px solid var(--line); }
  .settings-save { align-items: stretch; flex-direction: column; }
  .settings-save .button { width: 100%; }
  .student-class-list > div { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 520px) {
  .student-header { padding-inline: 10px; }
  .student-brand .sound-circle { --sound-size: 42px; }
  .metric-grid { grid-template-columns: 1fr; }
  .continue-card, .assignment-strip, .weekly-summary, .review-callout, .assignment-detail-card, .settings-panel { padding: 18px; }
  .continue-card__heading, .assignment-hero { align-items: flex-start; flex-direction: column; }
  .next-words > div { justify-content: space-between; gap: 8px; }
  .segmented-control { width: 100%; }
  .segmented-control button, .segmented-control > label, .segmented-control > label > span { min-width: 0; flex: 1; }
  .assignment-row { grid-template-columns: 1fr; }
  .assignment-row > *, .assignment-row__path, .assignment-row > .button { grid-column: 1; }
  .assignment-row > .sound-circle { justify-self: start; }
  .journey ol, .mastery-card ol { margin-inline: -12px; }
  .bar-chart { gap: 4px; padding-inline: 2px; }
  .bar-chart small { font-size: .65rem; }
  .mastery-summary { grid-template-columns: 1fr; }
  .range-row { align-items: flex-start; flex-wrap: wrap; }
  .range-row input[type="range"] { order: 3; flex-basis: 100%; }
  .segmented-setting { align-items: stretch; flex-direction: column; }
  .segmented-setting .segmented-control { margin: 8px 0 0; }
  .account-panel dl { flex-direction: column; gap: 12px; }
}

.assignment-create-form { padding: 28px; display: grid; gap: 24px; }
.assignment-form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.assignment-form-grid label { display: grid; gap: 7px; font-weight: 800; }
.assignment-form-grid input, .assignment-form-grid select { width: 100%; min-height: 48px; border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; background: white; font: inherit; }
.assignment-word-panel, .assignment-supports { border: 1px solid var(--line); border-radius: 14px; padding: 20px; }
.assignment-word-panel legend, .assignment-supports legend { font-weight: 800; padding: 0 8px; }
.assignment-word-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; margin: 16px 0; }
.assignment-word-grid label { display: flex; gap: 10px; align-items: flex-start; padding: 12px; border: 1px solid var(--line); border-radius: 10px; }
.assignment-word-grid span { display: grid; gap: 2px; }
.assignment-word-grid small { color: var(--muted); }
.assignment-supports { display: flex; flex-wrap: wrap; gap: 14px 22px; }
.assignment-supports label { display: flex; align-items: center; gap: 8px; }
.assignment-publish-row { display: flex; justify-content: flex-end; align-items: center; gap: 16px; }
.teacher-assignment-list { display: grid; gap: 10px; padding: 18px; }
.teacher-assignment-list article { display: grid; grid-template-columns: minmax(0, 1fr) auto auto; gap: 18px; padding: 12px; border-bottom: 1px solid var(--line); }
@media (max-width: 760px) { .assignment-form-grid, .assignment-word-grid { grid-template-columns: 1fr; } .teacher-assignment-list article { grid-template-columns: 1fr; gap: 4px; } }