:root {
  --ink: #17221f;
  --muted: #66726e;
  --paper: #f7f4ed;
  --surface: #fffdf8;
  --line: #ded9cc;
  --green: #1d5a4a;
  --green-dark: #123e34;
  --sand: #d7b56d;
  --sand-soft: #f1e5c9;
  --red: #a84432;
  --blue: #315c75;
  --shadow: 0 18px 50px rgba(30, 42, 37, 0.09);
  --radius: 18px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
}

button, input { font: inherit; }
button { cursor: pointer; }

.shell { min-height: 100vh; }
.topline { height: 5px; background: var(--sand); }

.login-page {
  min-height: calc(100vh - 5px);
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
}

.login-story {
  padding: clamp(42px, 8vw, 110px);
  background: var(--green-dark);
  color: #fff;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
}

.login-story::after {
  content: "";
  width: 340px;
  height: 340px;
  border: 1px solid rgba(215,181,109,.35);
  transform: rotate(45deg);
  position: absolute;
  right: -180px;
  bottom: -160px;
}

.brand { display: flex; gap: 12px; align-items: center; font-weight: 750; letter-spacing: .02em; }
.brand-mark {
  width: 36px;
  height: 36px;
  border: 1px solid rgba(215,181,109,.7);
  color: var(--sand);
  display: grid;
  place-items: center;
  border-radius: 10px;
  font-family: Georgia, serif;
  font-size: 18px;
}
.eyebrow { text-transform: uppercase; font-size: 12px; letter-spacing: .16em; font-weight: 800; color: var(--sand); }
.login-story h1 { font: 500 clamp(42px, 6vw, 74px)/1.02 Georgia, serif; margin: 18px 0 20px; max-width: 720px; }
.login-story p { max-width: 590px; color: rgba(255,255,255,.73); font-size: 18px; }
.term-line { color: #d9e6df; font: 14px ui-monospace, SFMono-Regular, Menlo, monospace; opacity: .8; }
.term-line span { color: var(--sand); }
.program-stamp { display: flex; flex-wrap: wrap; gap: 10px; }
.program-stamp span { border: 1px solid rgba(255,255,255,.18); border-radius: 999px; padding: 7px 11px; font-size: 12px; color: rgba(255,255,255,.7); }
.brand-dark { color: var(--ink); }
.brand-dark .brand-mark { color: var(--green); border-color: var(--green); }

.login-panel {
  display: grid;
  place-items: center;
  padding: 36px;
}
.login-card { width: min(460px, 100%); }
.login-card h2 { font: 500 38px/1.1 Georgia, serif; margin: 0 0 12px; }
.login-card > p { color: var(--muted); margin: 0 0 28px; }
.field-label { display: block; font-size: 13px; font-weight: 800; margin-bottom: 8px; }
.token-row { display: flex; gap: 10px; }
.token-input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  padding: 14px 16px;
  letter-spacing: .05em;
  text-transform: uppercase;
  outline: none;
}
.token-input:focus { border-color: var(--green); box-shadow: 0 0 0 4px rgba(29,90,74,.1); }
.primary, .secondary, .ghost, .danger {
  border: 0;
  border-radius: 11px;
  padding: 11px 16px;
  font-weight: 750;
}
.primary { background: var(--green); color: #fff; }
.primary:hover { background: var(--green-dark); }
.secondary { background: var(--sand-soft); color: #644f22; }
.ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.danger { color: var(--red); background: #f8e6e2; }
.login-error { min-height: 24px; color: var(--red); font-size: 14px; margin-top: 10px; }
.help-note { font-size: 13px; color: var(--muted); padding-top: 20px; border-top: 1px solid var(--line); margin-top: 24px; }

.portal { min-height: 100vh; display: grid; grid-template-columns: 270px 1fr; }
.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  background: var(--green-dark);
  color: #fff;
  padding: 28px 22px;
  display: flex;
  flex-direction: column;
}
.sidebar .brand { margin-bottom: 34px; }
.side-label { font-size: 11px; color: rgba(255,255,255,.45); text-transform: uppercase; letter-spacing: .12em; margin: 16px 10px 8px; }
.nav-btn {
  width: 100%;
  display: flex;
  gap: 12px;
  align-items: center;
  border: 0;
  color: rgba(255,255,255,.72);
  background: transparent;
  border-radius: 10px;
  padding: 11px 12px;
  text-align: left;
}
.nav-btn:hover, .nav-btn.active { background: rgba(255,255,255,.1); color: #fff; }
.nav-icon { width: 22px; text-align: center; color: var(--sand); font-weight: 900; }
.student-chip { margin-top: auto; border-top: 1px solid rgba(255,255,255,.12); padding-top: 18px; }
.student-chip strong, .student-chip span { display: block; }
.student-chip span { font-size: 12px; color: rgba(255,255,255,.5); margin: 2px 0 10px; }
.logout { color: rgba(255,255,255,.7); background: transparent; border: 0; padding: 0; font-size: 13px; }

.main { min-width: 0; }
.mobile-bar { display: none; }
.content { padding: 38px clamp(24px, 5vw, 72px) 70px; max-width: 1440px; margin: 0 auto; }
.page-head { display: flex; justify-content: space-between; gap: 24px; align-items: flex-start; margin-bottom: 28px; }
.page-head h1 { font: 500 clamp(34px, 4vw, 52px)/1.08 Georgia, serif; margin: 7px 0 8px; }
.page-head p { color: var(--muted); margin: 0; max-width: 680px; }
.status-pill { white-space: nowrap; background: var(--sand-soft); color: #624e24; border-radius: 999px; padding: 8px 12px; font-size: 12px; font-weight: 800; }
.head-actions { display:flex; align-items:center; justify-content:flex-end; gap:9px; flex-wrap:wrap; }
.language-toggle { border:1px solid var(--green); background:transparent; color:var(--green); border-radius:999px; padding:7px 12px; font-weight:800; }
.language-toggle:hover { background:var(--green); color:#fff; }

.hero-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  display: grid;
  grid-template-columns: 1.4fr .6fr;
  overflow: hidden;
  margin-bottom: 24px;
}
.hero-copy { padding: clamp(24px, 4vw, 46px); }
.hero-copy h2 { font: 500 32px/1.15 Georgia, serif; margin: 7px 0 12px; }
.hero-copy p { color: var(--muted); max-width: 620px; }
.hero-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 22px; }
.hero-progress { background: var(--green); color: #fff; display: grid; place-items: center; padding: 30px; }
.progress-ring {
  --value: 0;
  width: 150px;
  height: 150px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: conic-gradient(var(--sand) calc(var(--value) * 1%), rgba(255,255,255,.13) 0);
  position: relative;
}
.progress-ring::before { content: ""; position: absolute; inset: 12px; background: var(--green); border-radius: 50%; }
.progress-ring span { position: relative; text-align: center; font: 500 30px Georgia,serif; }
.progress-ring small { display: block; font: 11px ui-sans-serif,system-ui; color: rgba(255,255,255,.65); }

.section-title { display: flex; justify-content: space-between; align-items: baseline; margin: 34px 0 14px; }
.section-title h2 { font: 500 26px Georgia, serif; margin: 0; }
.section-title span { color: var(--muted); font-size: 13px; }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.stats-four { grid-template-columns: repeat(4,1fr); }
.stat, .panel { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 20px; }
.stat strong { font: 500 30px Georgia,serif; display: block; }
.stat span { color: var(--muted); font-size: 13px; }

.lesson-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 15px; }
.course-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 20px; }
.course-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: clamp(24px,3vw,34px); box-shadow: var(--shadow); }
.course-card-top { display:flex; justify-content:space-between; align-items:center; color:var(--muted); font-size:12px; }
.month-badge { background:var(--sand-soft); color:#654f21; border-radius:999px; padding:6px 9px; font-weight:850; letter-spacing:.08em; }
.course-card h2 { font:500 30px/1.15 Georgia,serif; margin:20px 0 10px; }
.course-card > p { color:var(--muted); min-height:72px; }
.week-list { display:grid; gap:8px; margin:20px 0 26px; }
.week-list div { display:grid; grid-template-columns:34px 1fr; gap:10px; font-size:13px; }
.week-list b { color:var(--green); }
.week-list span { color:var(--muted); }
.course-foot { border-top:1px solid var(--line); padding-top:18px; display:flex; justify-content:space-between; align-items:center; gap:14px; color:var(--muted); font-size:12px; }
.course-toolbar { background:var(--green-dark); color:#fff; border-radius:14px; padding:16px 20px; display:flex; align-items:center; justify-content:space-between; gap:18px; margin-bottom:18px; }
.course-toolbar div { display:flex; gap:20px; align-items:center; }
.course-toolbar span { color:rgba(255,255,255,.58); font-size:13px; }
.button-link { text-decoration:none; display:inline-block; }
.standards-panel { margin-top:24px; display:grid; grid-template-columns:1.3fr .7fr; gap:24px; align-items:center; padding:30px; }
.standards-panel h2 { font:500 28px Georgia,serif; margin:8px 0; }
.standards-panel p { color:var(--muted); }
.program-metrics { display:grid; grid-template-columns:repeat(3,1fr); gap:10px; }
.program-metrics div { background:var(--paper); border:1px solid var(--line); padding:14px; border-radius:10px; text-align:center; }
.program-metrics b,.program-metrics span { display:block; }
.program-metrics b { font:500 28px Georgia,serif; }
.program-metrics span { color:var(--muted); font-size:11px; }
.program-seal span { font-size:46px; letter-spacing:.08em; }
.program-seal small { letter-spacing:.02em; }
.instructor-hero { margin-top:22px; }
.lesson-card { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 20px; transition: transform .18s ease, box-shadow .18s ease; }
.lesson-card:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.lesson-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.lesson-number { color: var(--green); font-weight: 850; font-size: 12px; letter-spacing: .08em; }
.check { color: var(--green); font-weight: 900; }
.lesson-card h3 { font: 500 21px/1.2 Georgia,serif; margin: 0 0 8px; }
.lesson-card p { color: var(--muted); font-size: 13px; min-height: 61px; }
.lesson-meta { display: flex; gap: 14px; font-size: 12px; color: var(--muted); margin: 18px 0; }
.card-link { color: var(--green); background: transparent; border: 0; font-weight: 800; padding: 0; }

.lesson-layout { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 24px; align-items: start; }
.lesson-body { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: clamp(24px,4vw,44px); }
.lesson-body h2 { font: 500 26px Georgia,serif; margin: 32px 0 10px; }
.lesson-body h2:first-child { margin-top: 0; }
.lesson-body ul { padding-left: 20px; }
.lesson-side { position: sticky; top: 24px; display: grid; gap: 14px; }
.command-strip { display: flex; flex-wrap: wrap; gap: 8px; }
code, .command { font: 13px ui-monospace,SFMono-Regular,Menlo,monospace; }
.command { background: #eef0eb; border: 1px solid #d8ddd5; border-radius: 7px; padding: 6px 8px; }
.callout { border-left: 3px solid var(--sand); background: #faf3e3; padding: 16px 18px; border-radius: 0 10px 10px 0; }
.callout strong { display: block; margin-bottom: 4px; }
.callout.warning { border-left-color:var(--red); background:#f7e8e4; color:#6d2e23; margin:14px 0; }
.evidence-rule { margin-top:28px; border:1px solid var(--line); border-radius:12px; padding:16px; display:grid; gap:4px; }
.evidence-rule span { color:var(--muted); font-size:13px; }
.mini-list { display: grid; gap: 9px; margin-top: 14px; }
.mini-item { display: flex; justify-content: space-between; gap: 10px; font-size: 13px; }
.mini-item span { color: var(--muted); }

.guided-toolbar { background:var(--green-dark); color:#fff; border-radius:14px 14px 0 0; padding:15px 18px; display:flex; justify-content:space-between; align-items:center; gap:14px; }
.guided-toolbar > div { display:flex; align-items:center; gap:12px; flex-wrap:wrap; }
.guided-badge { background:rgba(215,181,109,.17); border:1px solid rgba(215,181,109,.42); color:var(--sand); border-radius:999px; padding:5px 9px; font-size:11px; font-weight:850; letter-spacing:.06em; text-transform:uppercase; }
.audio-controls { justify-content:flex-end; }
.step-progress { display:grid; grid-template-columns:repeat(5,1fr); background:#ede9de; border:1px solid var(--line); border-top:0; margin-bottom:20px; }
.step-dot { min-width:0; border:0; border-right:1px solid var(--line); background:transparent; padding:12px 9px; color:var(--muted); display:flex; align-items:center; justify-content:center; gap:8px; }
.step-dot:last-child { border-right:0; }
.step-dot > span { width:25px; height:25px; flex:0 0 25px; border-radius:50%; border:1px solid #c7c1b3; display:grid; place-items:center; font-size:11px; font-weight:850; }
.step-dot small { overflow:hidden; white-space:nowrap; text-overflow:ellipsis; }
.step-dot.current { background:var(--surface); color:var(--ink); box-shadow:inset 0 -3px 0 var(--sand); }
.step-dot.finished > span { background:var(--green); border-color:var(--green); color:#fff; }
.guided-layout { display:grid; grid-template-columns:minmax(0,1.05fr) minmax(380px,.95fr); gap:20px; align-items:start; }
.guided-card { min-height:590px; background:var(--surface); border:1px solid var(--line); border-radius:var(--radius); padding:clamp(25px,4vw,44px); display:flex; flex-direction:column; }
.step-kicker { color:var(--green); text-transform:uppercase; letter-spacing:.1em; font-size:11px; font-weight:850; }
.guided-card h2 { font:500 clamp(29px,3vw,39px)/1.12 Georgia,serif; margin:10px 0 14px; }
.step-lead { color:var(--muted); font-size:17px; margin:0; }
.step-section { margin-top:25px; border-top:1px solid var(--line); padding-top:20px; }
.step-section h3 { font-size:14px; margin:0 0 9px; }
.step-section ul { margin:0; padding-inline-start:20px; }
.command-test { margin-top:27px; background:#eef3f0; border:1px solid #d3ded8; border-radius:13px; padding:17px; display:grid; gap:13px; }
.command-test span:first-child { font-weight:850; color:var(--green); }
.command-test p { margin:3px 0 0; color:var(--muted); font-size:13px; }
.command-copy { border:1px solid #334844; border-radius:9px; background:#17221f; color:#fff; padding:12px 14px; display:flex; justify-content:space-between; gap:12px; text-align:left; }
.command-copy code { color:#f1d28f; overflow-wrap:anywhere; }
.technical-note { color:var(--muted); font-size:12px; margin:9px 0 0; }
.step-result { min-height:58px; margin-top:auto; padding-top:26px; display:flex; align-items:center; gap:12px; color:var(--muted); }
.step-result.passed { color:var(--green); }
.step-result strong,.step-result span { display:block; }
.step-result span { font-size:13px; }
.step-navigation { border-top:1px solid var(--line); margin-top:18px; padding-top:18px; display:flex; justify-content:space-between; gap:12px; }
.step-navigation button:disabled { opacity:.4; cursor:not-allowed; }
.guided-terminal { position:sticky; top:20px; }
.terminal-title { display:flex; justify-content:space-between; align-items:center; padding:0 3px 9px; }
.terminal-title div { display:grid; }
.terminal-title span { font-weight:850; }
.terminal-title small { color:var(--muted); }
.safe-chip { color:var(--green)!important; background:#dfebe6; border-radius:999px; padding:5px 8px; font-size:10px; letter-spacing:.08em; }
.compact-terminal .terminal-screen { height:475px; }
.terminal-hint { color:var(--muted); font-size:12px; margin:10px 3px 0; }
.lesson-footer-actions { margin-top:18px; display:flex; justify-content:space-between; gap:16px; align-items:center; color:var(--muted); font-size:12px; }
[dir="rtl"] .command-copy { text-align:right; }
[dir="rtl"] .step-navigation { direction:rtl; }

.quiz-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: clamp(24px,4vw,42px); }
.question { padding: 22px 0; border-bottom: 1px solid var(--line); }
.question:last-of-type { border-bottom: 0; }
.question h3 { font-size: 16px; margin: 0 0 12px; }
.options { display: grid; gap: 8px; }
.option { border: 1px solid var(--line); background: #fff; border-radius: 10px; padding: 11px 13px; text-align: left; }
.option:hover { border-color: var(--green); }
.option.selected { border-color: var(--green); background: #e8f0ed; }
.quiz-result { margin-top: 20px; padding: 18px; border-radius: 12px; background: var(--sand-soft); }

.progress-layout { display: grid; grid-template-columns: 1.05fr .95fr; gap: 20px; }
.bars { display: grid; gap: 14px; }
.bar-label { display: flex; justify-content: space-between; font-size: 13px; margin-bottom: 6px; }
.bar-track { height: 9px; background: #ebe7dd; border-radius: 99px; overflow: hidden; }
.bar-fill { height: 100%; background: var(--green); border-radius: 99px; }
.difficulty { display: flex; gap: 10px; align-items: center; padding: 12px 0; border-bottom: 1px solid var(--line); }
.difficulty:last-child { border: 0; }
.difficulty-count { margin-left: auto; font-weight: 850; color: var(--red); }
.difficulty-button { width:100%; border:0; background:transparent; text-align:left; }
.course-progress-row { padding:14px 0; border-bottom:1px solid var(--line); }
.course-progress-row:last-child { border-bottom:0; }
.course-progress-row > div:first-child { display:flex; justify-content:space-between; gap:12px; margin-bottom:8px; }
.course-progress-row span { color:var(--muted); font-size:12px; }
.compact-grid { grid-template-columns:repeat(3,1fr); }
.score-large { display:block; font:500 34px Georgia,serif; color:var(--green); margin-top:12px; }
.roster td small { display:block; color:var(--muted); margin-top:2px; }
.good { color:var(--green); font-weight:800; }
.bad { color:var(--red); font-weight:800; }
.normal-case { text-transform:none; letter-spacing:normal; }
.issued-token { margin-top:18px; padding:16px; border-radius:12px; background:var(--green-dark); color:#fff; display:grid; gap:5px; }
.issued-token span,.issued-token small { color:rgba(255,255,255,.65); font-size:12px; }
.issued-token strong { color:var(--sand); font:16px ui-monospace,monospace; overflow-wrap:anywhere; }

.terminal-wrap { background: #0f1715; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.terminal-head { background: #1c2926; color: #d8e2dd; padding: 12px 16px; display: flex; justify-content: space-between; font-size: 12px; }
.terminal-screen { height: 480px; overflow: auto; padding: 20px; color: #d7e8df; font: 14px/1.65 ui-monospace,SFMono-Regular,Menlo,monospace; white-space: pre-wrap; }
.terminal-input-row { display: flex; gap: 9px; align-items: center; color: var(--sand); }
.terminal-input { flex: 1; background: transparent; color: #fff; border: 0; outline: 0; padding: 6px 0; font: inherit; }
.terminal-note { margin-top: 16px; color: var(--muted); font-size: 13px; }
.lab-status { background:var(--surface); border:1px solid var(--line); border-radius:13px; padding:14px 16px; display:flex; justify-content:space-between; align-items:center; gap:14px; margin-bottom:16px; }
.lab-status > div { display:grid; grid-template-columns:14px 1fr; align-items:center; column-gap:8px; }
.lab-status small { grid-column:2; color:var(--muted); }
.status-dot { width:9px; height:9px; border-radius:50%; display:block; }
.status-dot.amber { background:#c98f27; box-shadow:0 0 0 4px #f5e7c9; }
.lab-grid { display: grid; grid-template-columns: minmax(0,1fr) 300px; gap: 20px; }
.task-list { display: grid; gap: 9px; }
.task { border: 1px solid var(--line); border-radius: 10px; padding: 11px; font-size: 13px; }

.roster { width: 100%; border-collapse: collapse; }
.roster th, .roster td { border-bottom: 1px solid var(--line); padding: 13px 10px; text-align: left; font-size: 13px; }
.roster th { color: var(--muted); font-size: 11px; text-transform: uppercase; letter-spacing: .08em; }
.token-code { font: 12px ui-monospace,monospace; background: #efede6; padding: 4px 6px; border-radius: 5px; }
.empty { color: var(--muted); padding: 50px 20px; text-align: center; }
.hidden { display: none !important; }
.toast { position: fixed; right: 24px; bottom: 24px; background: var(--ink); color: #fff; padding: 12px 16px; border-radius: 10px; box-shadow: var(--shadow); z-index: 20; }

/* Application controls share the existing classroom palette. */
[hidden] { display:none!important; }
a { color:var(--green); text-underline-offset:3px; }
.button-link,.nav-btn,.step-dot { text-decoration:none; }
.button-link { display:inline-flex; align-items:center; justify-content:center; }
button:disabled,.disabled-link { opacity:.45; cursor:not-allowed; }
.disabled-link { pointer-events:none; }
:focus-visible { outline:3px solid #a47724; outline-offset:3px; }
textarea,select,input { font:inherit; }
textarea,select,input:not([type=radio]):not([type=checkbox]):not(.token-input):not(#terminalInput) { width:100%; padding:11px 13px; border:1px solid var(--line); border-radius:9px; background:var(--surface); color:var(--ink); }
textarea { width:100%; resize:vertical; min-height:76px; }
label { display:block; }
fieldset { padding:0; border:0; min-width:0; margin:0; }
legend { font-weight:750; margin-bottom:12px; }
input[type=radio],input[type=checkbox] { accent-color:var(--green); flex-shrink:0; }
.loading-surface { max-width:550px; margin:18vh auto; padding:28px; }
.loading-surface .brand-mark { background:var(--green-dark); }
.login-top { display:flex; justify-content:space-between; gap:16px; align-items:center; }
.login-top .eyebrow { color:var(--green); }
.app-topbar { min-height:70px; padding:14px clamp(24px,5vw,72px); border-bottom:1px solid var(--line); display:flex; align-items:center; gap:14px; color:var(--muted); font-size:13px; }
.app-topbar > div { margin-inline-start:auto; display:flex; gap:12px; align-items:center; }
.app-topbar .mobile-menu { display:none; color:var(--green); }
.private-label { border-inline-start:1px solid var(--line); padding-inline-start:12px; text-transform:uppercase; font-size:10px; letter-spacing:.08em; }
.sidebar-course { border:1px solid #487265; border-radius:13px; padding:16px; display:grid; gap:5px; margin-top:28px; }
.sidebar-course span,.sidebar-course small { color:#c2d3cb; font-size:11px; }
.message { padding:13px 16px; border-radius:10px; background:#e8eef2; color:#294c63; margin:0 0 20px; overflow-wrap:anywhere; }
.message.error { color:#882f24; background:#faeae5; border:1px solid #eac6ba; }
.message.success { color:var(--green-dark); background:#e3eee7; }
.continue-card { display:grid; grid-template-columns:1fr 160px; border:1px solid var(--line); background:var(--surface); border-radius:var(--radius); overflow:hidden; margin:24px 0 32px; }
.continue-card > div:first-child { padding:34px; }
.continue-card .eyebrow { color:var(--green); font-size:11px; }
.continue-card h2 { font:500 clamp(26px,3vw,38px)/1.2 Georgia,serif; margin:14px 0; }
.continue-card p { max-width:620px; color:var(--muted); }
.continue-number { background:var(--green-dark); color:var(--sand); font:70px Georgia,serif; display:flex; flex-direction:column; align-items:center; justify-content:center; }
.continue-number small { font:11px system-ui,sans-serif; letter-spacing:.18em; margin-top:10px; }
.stat strong { display:block; font:500 30px Georgia,serif; }
.stat span { color:var(--muted); font-size:12px; }
.class-top { background:var(--green-dark); color:#fff; padding:14px 18px; border-radius:14px 14px 0 0; display:flex; align-items:center; flex-wrap:wrap; gap:16px; font-size:12px; }
.save-label { margin-inline-start:auto; color:#c3d8ce; font-size:11px; }
.learning-points { padding-inline-start:20px; color:var(--muted); font-size:14px; }
.learning-points li + li { margin-top:6px; }
.guided-layout { grid-template-columns:minmax(0,1.05fr) minmax(320px,.95fr); }
.guided-card { padding:clamp(22px,3vw,34px); }
.audio-player { margin:22px 0; padding:15px; background:#f4f1e8; border:1px solid var(--line); border-radius:12px; font-size:12px; }
.audio-scope { display:flex; align-items:center; gap:9px; margin-bottom:12px; }
.audio-scope select { max-width:190px; padding:6px; }
.audio-buttons { display:flex; gap:8px; align-items:center; flex-wrap:wrap; }
.audio-buttons button { padding:9px 11px; font-size:12px; }
.audio-buttons label { margin-inline-start:auto; display:flex; align-items:center; gap:6px; }
.audio-buttons select { padding:6px; width:auto; }
.audio-player details { margin-top:13px; }
.audio-player details > label { margin-top:10px; }
summary { cursor:pointer; color:var(--green); font-weight:650; }
.checkbox-row { display:flex!important; gap:8px; align-items:flex-start; line-height:1.5; }
.audio-status { color:var(--muted); margin-top:12px; min-height:18px; }
.spoken-text { border-inline-start:3px solid var(--sand); padding-inline-start:10px; color:var(--green-dark); margin-bottom:0; }
.checkpoint { margin-top:10px; }
.radio-option { display:flex; gap:10px; align-items:flex-start; border:1px solid var(--line); border-radius:9px; padding:11px; margin:8px 0; cursor:pointer; font-size:14px; }
.radio-option:has(input:checked) { background:#e8f0eb; border-color:var(--green); }
.question { margin-bottom:18px; }
.lab-mode-switch { display:flex; gap:12px; flex-wrap:wrap; font-size:12px; padding:10px 0 4px; }
.lab-mode-switch label { display:flex; align-items:center; gap:5px; }
.terminal-context { color:var(--muted); font-size:12px; margin:6px 0 12px; }
.terminal-screen { margin:0; height:350px; padding:18px; overflow-wrap:anywhere; direction:ltr; text-align:left; }
.terminal-command-form { display:flex; align-items:center; gap:10px; padding:10px 14px; background:#1c2926; color:var(--sand); }
#terminalInput { background:transparent; border:0; color:#fff; min-width:0; flex:1; font:13px/1.6 ui-monospace,monospace; padding:7px 0; border-radius:0; }
.terminal-run { background:var(--sand); color:var(--ink); font-weight:750; border:0; border-radius:7px; padding:7px 10px; }
.terminal-controls { display:flex; gap:7px; margin-top:12px; flex-wrap:wrap; }
.terminal-controls button { font-size:12px; padding:8px 10px; }
.terminal-hint,#terminalStatus { font-size:12px; color:var(--muted); }
.progress-section,.lesson-reference { margin-top:24px; }
.panel h2 { margin-top:0; }
.evidence-panel { display:grid; grid-template-columns:.8fr 1.2fr; gap:28px; margin-top:26px; }
.evidence-panel p { color:var(--muted); font-size:14px; }
.evidence-panel blockquote { margin:20px 0 0; border-inline-start:3px solid var(--sand); padding-inline-start:14px; }
.inline-form { display:flex; gap:16px; align-items:flex-end; }
.inline-form label { flex:1; }
.submission { margin:18px 0; }
.submission-head { display:flex; align-items:center; gap:20px; justify-content:space-between; }
.evidence-body { font:inherit; white-space:pre-wrap; overflow-wrap:anywhere; background:var(--paper); border-radius:10px; padding:18px; max-height:350px; overflow:auto; }
.reviewForm { display:flex; align-items:flex-end; flex-wrap:wrap; gap:12px; }
.reviewForm label { flex:1; min-width:220px; }
.reviewForm select { width:auto; }
.lab-admin-grid { display:grid; grid-template-columns:1fr 1fr; gap:22px; }
.lab-admin-grid p,.lab-admin-grid li { color:var(--muted); font-size:14px; }
.lab-admin-grid ol { padding-inline-start:22px; }
.lab-admin-grid li { margin-bottom:10px; }
#assignmentForm { display:grid; gap:18px; }
.roster th,.roster td { text-align:start; }
[dir=rtl] body { font-family:Tahoma,"Segoe UI",sans-serif; }
[dir=rtl] h1,[dir=rtl] h2,[dir=rtl] .stat strong { font-family:inherit; line-height:1.45; }
[dir=rtl] .eyebrow,[dir=rtl] .step-kicker,[dir=rtl] .side-label,[dir=rtl] .guided-badge { letter-spacing:0; }
[dir=rtl] .nav-btn { text-align:right; }
[dir=rtl] .command-copy { direction:ltr; text-align:left; }

@media(max-width:1180px) {
 .portal { grid-template-columns:230px minmax(0,1fr); }
 .content { padding:28px 24px 60px; }
 .guided-layout { grid-template-columns:1fr; }
 .guided-terminal { position:static; }
 .terminal-screen { height:300px; }
 .lab-admin-grid { grid-template-columns:1fr; }
}
@media(max-width:760px) {
 .app-topbar { padding:12px 18px; }
 .app-topbar .mobile-menu { display:block; }
 .app-topbar > span { font-size:12px; }
 .private-label { display:none; }
 .continue-card { grid-template-columns:1fr; }
 .continue-number { display:none; }
 .continue-card > div:first-child { padding:24px; }
 .evidence-panel { grid-template-columns:1fr; gap:18px; }
 .inline-form { align-items:stretch; flex-direction:column; }
 .submission-head { display:block; }
 .class-top { gap:8px 14px; }
 .save-label { width:100%; margin:0; }
 [dir=rtl] .sidebar { inset:0 0 0 auto; }
}
.guide-start { margin-bottom:20px; }
.guide-start p,.guide-section li { max-width:80ch; line-height:1.8; }
.portal-guide { display:grid; gap:16px; }
.guide-section { min-width:0; }
.guide-section summary { cursor:pointer; font-size:1.12rem; font-weight:700; line-height:1.6; padding-block:6px; overflow-wrap:anywhere; }
.guide-section summary:focus-visible { outline:3px solid var(--green); outline-offset:5px; border-radius:4px; }
.guide-section ol { padding-inline-start:1.5rem; margin-bottom:0; }
.guide-section li { padding-inline-start:5px; margin-block:14px; overflow-wrap:anywhere; }
@media print {
 .sidebar,.app-topbar,.step-progress,.guided-terminal,.audio-player,.step-navigation,.hero-actions,.page-head > a,.class-top,.checkpoint,#message,.evidence-panel { display:none!important; }
 .portal,.guided-layout { display:block!important; }
 .content { padding:0; max-width:none; }
 .guided-card,.panel { border:0; box-shadow:none; padding:16px 0; min-height:0; }
 body { background:#fff; color:#000; }
 .lesson-reference { break-before:auto; }
 a { color:#000; }
}

@media (max-width: 1020px) {
  .lesson-grid { grid-template-columns: repeat(2, 1fr); }
  .lesson-layout, .lab-grid { grid-template-columns: 1fr; }
  .stats-four { grid-template-columns:repeat(2,1fr); }
  .lesson-side { position: static; }
  .guided-layout { grid-template-columns:1fr; }
  .guided-terminal { position:static; }
}

@media (max-width: 760px) {
  .login-page { grid-template-columns: 1fr; }
  .login-story { min-height: 390px; padding: 38px 28px; }
  .login-panel { padding: 42px 22px; }
  .portal { grid-template-columns: 1fr; }
  .sidebar { display: none; position: fixed; inset: 0 auto 0 0; width: 270px; z-index: 10; }
  .sidebar.open { display: flex; }
  .mobile-bar { display: flex; justify-content: space-between; align-items: center; padding: 15px 20px; background: var(--green-dark); color: #fff; }
  .mobile-menu { border: 0; background: transparent; color: #fff; font-size: 22px; }
  .content { padding: 28px 18px 60px; }
  .hero-card { grid-template-columns: 1fr; }
  .hero-progress { min-height: 220px; }
  .lesson-grid, .stats, .progress-layout { grid-template-columns: 1fr; }
  .course-grid,.compact-grid,.standards-panel { grid-template-columns:1fr; }
  .program-metrics { grid-template-columns:repeat(3,1fr); }
  .course-toolbar,.course-toolbar div,.lab-status { align-items:flex-start; flex-direction:column; }
  .page-head { display: block; }
  .head-actions { justify-content:flex-start; margin-top:14px; }
  .status-pill { display: inline-block; margin-top: 14px; }
  .token-row { display: grid; }
  .roster-wrap { overflow-x: auto; }
  .guided-toolbar,.lesson-footer-actions { align-items:flex-start; flex-direction:column; }
  .audio-controls { width:100%; }
  .step-progress { grid-template-columns:repeat(5,minmax(44px,1fr)); overflow:hidden; }
  .step-dot { padding:11px 5px; }
  .step-dot small { display:none; }
  .compact-terminal .terminal-screen { height:390px; }
}

/* Student invitation signup */
.signup-page{min-height:100vh;display:grid;place-items:center;padding:32px 20px;background:var(--paper,#f6f4ee)}
.signup-card{width:min(100%,620px);box-sizing:border-box}.signup-card h1{font-size:clamp(1.6rem,4vw,2.4rem);line-height:1.2}.signup-card form{display:grid;gap:16px}.signup-card input:not([type=checkbox]){width:100%;box-sizing:border-box}.signup-card textarea,.issued-token textarea{display:block;width:100%;max-width:100%;box-sizing:border-box;overflow-wrap:anywhere;font-family:monospace;resize:vertical}.signup-confirm{display:flex;align-items:flex-start;gap:10px}.signup-confirm input{width:auto;flex:none;margin-top:5px}.signup-card .primary{white-space:normal}.issued-token{min-width:0}
/* Tables stay scrollable at tablet widths as well as on phones. */
.roster-wrap{max-width:100%;overflow-x:auto}