:root {
  --bg: #06111b;
  --bg-soft: #0a1825;
  --panel: rgba(13, 30, 44, .88);
  --panel-strong: #10283a;
  --line: rgba(151, 189, 213, .16);
  --text: #eff7fb;
  --muted: #9bb2c2;
  --accent: #48c6ff;
  --accent-2: #80e2ff;
  --accent-soft: rgba(72, 198, 255, .12);
  --danger: #ff8a78;
  --success: #71e2b2;
  --shadow: 0 24px 60px rgba(0, 0, 0, .28);
  --radius: 22px;
  --radius-sm: 14px;
  --shell: 1220px;
}

html[data-theme="light"] {
  --bg: #edf4f8;
  --bg-soft: #f7fbfd;
  --panel: rgba(255,255,255,.94);
  --panel-strong: #ffffff;
  --line: rgba(18, 62, 86, .13);
  --text: #102331;
  --muted: #587184;
  --accent: #007bb8;
  --accent-2: #005e8f;
  --accent-soft: rgba(0, 123, 184, .09);
  --danger: #b84334;
  --success: #147a56;
  --shadow: 0 18px 45px rgba(36, 72, 94, .12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 85% 0%, rgba(51, 181, 234, .13), transparent 28rem),
    linear-gradient(180deg, var(--bg) 0%, #071827 55%, var(--bg) 100%);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

html[data-theme="light"] body {
  background: linear-gradient(180deg, #edf6fa, #f8fbfd 42%, #ecf4f7);
}

a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
button { color: inherit; }

.shell { width: min(calc(100% - 40px), var(--shell)); margin-inline: auto; }
.demo-notice { margin-top: 20px; padding: 14px 18px; border: 1px solid var(--line); border-radius: 12px; color: var(--muted); background: var(--panel); font-size: 14px; line-height: 1.6; }
.demo-notice strong { color: var(--accent-2); }
button:disabled { cursor: wait; opacity: .65; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 max(22px, calc((100vw - var(--shell)) / 2));
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}

.brand { display: flex; align-items: center; gap: 12px; min-width: 0; }
.brand-mark {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(72, 198, 255, .4);
  border-radius: 50%;
  background: radial-gradient(circle at 35% 25%, rgba(128, 226, 255, .38), rgba(72, 198, 255, .08) 55%, transparent 58%);
  box-shadow: inset 0 0 0 5px rgba(72, 198, 255, .035);
  color: var(--accent-2);
  font-weight: 800;
  letter-spacing: .05em;
}
.brand-copy { display: grid; line-height: 1.15; }
.brand-copy strong { font-size: 15px; letter-spacing: .01em; }
.brand-copy small { margin-top: 4px; color: var(--muted); font-size: 11px; }

.nav-links { display: flex; align-items: center; gap: 8px; }
.nav-links a, .theme-button {
  padding: 9px 12px;
  border-radius: 10px;
  color: var(--muted);
  transition: .2s ease;
}
.nav-links a:hover, .theme-button:hover { color: var(--text); background: var(--accent-soft); }
.theme-button { border: 0; background: transparent; cursor: pointer; font-size: 20px; }

.hero {
  min-height: 670px;
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 65px;
  align-items: center;
  padding-block: 76px 56px;
}
.eyebrow {
  color: var(--accent-2);
  font-size: 12px;
  font-weight: 750;
  letter-spacing: .16em;
  text-transform: uppercase;
}
.hero h1, .page-intro h1, .course-intro h1 {
  margin: 14px 0 20px;
  max-width: 900px;
  font-size: clamp(42px, 6vw, 76px);
  line-height: .98;
  letter-spacing: -.045em;
}
.hero h1 span { color: var(--accent-2); }
.hero-lead, .page-intro p, .course-intro p {
  max-width: 720px;
  margin: 0;
  color: var(--muted);
  font-size: clamp(17px, 2vw, 20px);
  line-height: 1.65;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  padding: 11px 17px;
  border: 1px solid transparent;
  border-radius: 12px;
  font-weight: 720;
  cursor: pointer;
  transition: transform .18s ease, background .18s ease, border-color .18s ease;
}
.button:hover { transform: translateY(-1px); }
.button-primary { background: var(--accent); color: #001622; box-shadow: 0 10px 30px rgba(72, 198, 255, .16); }
.button-secondary { border-color: var(--line); background: var(--panel); color: var(--text); }

.hero-stats { display: flex; gap: 28px; margin-top: 42px; padding-top: 25px; border-top: 1px solid var(--line); }
.hero-stats div { display: grid; }
.hero-stats strong { font-size: 23px; }
.hero-stats span { color: var(--muted); font-size: 12px; margin-top: 3px; }

.hero-instrument {
  position: relative;
  overflow: hidden;
  min-height: 460px;
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: 34px;
  background: linear-gradient(150deg, rgba(20, 48, 68, .88), rgba(6, 20, 31, .93));
  box-shadow: var(--shadow), inset 0 1px rgba(255,255,255,.05);
}
html[data-theme="light"] .hero-instrument { background: linear-gradient(150deg, #dfeef5, #f7fbfd); }
.instrument-grid {
  position: absolute; inset: 0; opacity: .23;
  background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 34px 34px;
  mask-image: linear-gradient(to bottom, black, transparent 82%);
}
.attitude-card {
  position: relative;
  overflow: hidden;
  width: min(330px, 88%);
  aspect-ratio: 1;
  margin: 8px auto 30px;
  border: 10px solid #091116;
  border-radius: 50%;
  background-color: #111a20;
  box-shadow:
    0 18px 40px rgba(0,0,0,.38),
    0 0 0 2px #29404e,
    inset 0 0 0 1px rgba(255,255,255,.08);
}
.attitude-card-real {
  background-image: url('https://media.defense.gov/2024/Mar/15/2003414042/-1/-1/0/240313-F-IO108-001.JPG');
  background-size: 1160% auto;
  background-position: 27% 21%;
  background-repeat: no-repeat;
}

.instrument-caption { position: relative; display: grid; gap: 5px; }
.instrument-caption span { color: var(--accent-2); font-size: 10px; letter-spacing: .18em; }
.instrument-caption strong { font-size: 17px; line-height: 1.45; }

.pillars-section { padding-block: 55px 90px; }
.section-heading h2 { margin: 9px 0 28px; font-size: clamp(30px, 4vw, 46px); letter-spacing: -.03em; }
.pillar-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 15px; }
.pillar-card, .subject-card, .course-hero-card, .course-progress-box, .lesson-index-card, .lesson-meta-card {
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: inset 0 1px rgba(255,255,255,.025);
}
.pillar-card { min-height: 230px; padding: 24px; border-radius: var(--radius); }
.pillar-card > span { color: var(--accent); font-size: 12px; letter-spacing: .18em; }
.pillar-card h3 { margin: 38px 0 9px; font-size: 22px; }
.pillar-card p { margin: 0; color: var(--muted); line-height: 1.6; font-size: 14px; }

.credibility-section { padding-block: 28px 100px; scroll-margin-top: 108px; }
.credibility-intro {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, .85fr);
  gap: 48px;
  align-items: end;
  margin-bottom: 26px;
}
.credibility-intro h2 {
  margin: 9px 0 0;
  max-width: 780px;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.08;
  letter-spacing: -.035em;
}
.credibility-intro > p {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.7;
}
.credibility-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 15px;
}
.credibility-card {
  min-height: 275px;
  padding: 27px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(145deg, rgba(72,198,255,.055), transparent 45%),
    var(--panel);
  box-shadow: inset 0 1px rgba(255,255,255,.035);
}
.credibility-card-warning {
  background:
    linear-gradient(145deg, rgba(255,138,120,.065), transparent 45%),
    var(--panel);
}
.credibility-step {
  color: var(--accent);
  font-size: 12px;
  font-weight: 850;
  letter-spacing: .17em;
}
.credibility-card h3 { margin: 30px 0 10px; font-size: 23px; }
.credibility-card p { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.68; }
.credibility-card a {
  display: inline-block;
  margin-top: 17px;
  color: var(--accent-2);
  font-size: 14px;
  font-weight: 720;
  text-decoration: underline;
  text-underline-offset: 4px;
}
.verification-legend {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-top: 15px;
}
.verification-legend > div {
  min-height: 104px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 15px;
  background: color-mix(in srgb, var(--panel) 86%, transparent);
}
.verification-legend p { margin: 10px 0 0; color: var(--muted); font-size: 12px; line-height: 1.45; }
.verification-status {
  display: inline-flex;
  padding: 5px 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 10px;
  font-weight: 850;
  letter-spacing: .07em;
}
.status-draft { color: var(--muted); }
.status-reviewed { color: var(--accent-2); border-color: rgba(128,226,255,.32); }
.status-fi { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 38%, transparent); }
.status-verified { color: var(--success); border-color: color-mix(in srgb, var(--success) 38%, transparent); }

.featured-course { padding-bottom: 100px; }
.course-hero-card { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 30px; padding: 40px; border-radius: 30px; }
.course-code { color: var(--accent); font-size: 12px; font-weight: 800; letter-spacing: .16em; }
.course-hero-card h2 { margin: 8px 0 12px; font-size: 34px; }
.course-hero-card p { max-width: 760px; color: var(--muted); line-height: 1.65; }
.text-link { display: inline-block; margin-top: 7px; color: var(--accent-2); font-weight: 720; }
.radar-ring { width: 130px; height: 130px; display: grid; place-content: center; text-align: center; border: 1px solid rgba(72,198,255,.38); border-radius: 50%; box-shadow: inset 0 0 0 11px rgba(72,198,255,.035), inset 0 0 0 28px rgba(72,198,255,.02); }
.radar-ring span { font-size: 34px; font-weight: 800; }
.radar-ring small { color: var(--muted); }

.impression-section { padding-bottom: 100px; scroll-margin-top: 100px; }
.impression-card {
  display: grid;
  grid-template-columns: .72fr 1.28fr;
  gap: 48px;
  padding: 40px;
  border: 1px solid rgba(72,198,255,.28);
  border-radius: 30px;
  background: linear-gradient(145deg, rgba(72,198,255,.09), transparent 42%), var(--panel);
  box-shadow: var(--shadow);
}
.impression-copy h2 { margin: 10px 0 16px; font-size: clamp(30px, 4vw, 44px); line-height: 1.08; }
.impression-copy p { margin: 0; color: var(--muted); line-height: 1.7; }
.impression-form { display: grid; gap: 18px; }
.impression-form fieldset { min-width: 0; margin: 0; padding: 0; border: 0; }
.impression-form legend, .impression-form > label { margin-bottom: 9px; font-size: 14px; }
.impression-options { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 10px; }
.impression-options label, .score-row label { cursor: pointer; }
.impression-options input, .score-row input { position: absolute; opacity: 0; pointer-events: none; }
.impression-options span, .score-row span {
  display: grid;
  place-items: center;
  min-height: 45px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: rgba(255,255,255,.025);
  color: var(--muted);
  transition: .18s ease;
}
.impression-options input:checked + span, .score-row input:checked + span {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--text);
  box-shadow: inset 0 0 0 1px var(--accent);
}
.score-row { display: grid; grid-template-columns: repeat(11, 1fr); gap: 5px; }
.score-row span { min-height: 38px; padding: 5px; font-weight: 750; }
.score-labels { display: flex; justify-content: space-between; margin-top: -13px; color: var(--muted); font-size: 11px; }
.impression-form textarea {
  min-height: 110px;
  resize: vertical;
  padding: 13px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(3,14,23,.45);
  color: var(--text);
}
.optional { color: var(--muted); font-weight: 400; }
.impression-actions { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.impression-actions [data-impression-status] { color: var(--muted); font-size: 13px; }
.impression-actions .is-success { color: var(--success); }
.impression-actions .is-error { color: var(--danger); }

.page-intro { padding-block: 64px 38px; }
.page-intro h1, .course-intro h1 { font-size: clamp(45px, 6vw, 68px); }
.subject-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 17px; padding-bottom: 90px; }
.subject-card { display: flex; flex-direction: column; min-height: 330px; padding: 24px; border-radius: var(--radius); }
.subject-ready { background: linear-gradient(150deg, rgba(18,48,68,.98), var(--panel)); }
html[data-theme="light"] .subject-ready { background: linear-gradient(150deg, #e3f3f9, #fff); }
.subject-card-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 34px; }
.subject-icon { font-size: 29px; }
.status-pill, .micro-pill { display: inline-flex; align-items: center; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); background: rgba(255,255,255,.025); }
.status-pill { padding: 6px 9px; font-size: 10px; text-transform: uppercase; letter-spacing: .06em; }
.status-ready { color: var(--success); border-color: color-mix(in srgb, var(--success) 35%, transparent); }
.subject-card h2 { margin: 8px 0 4px; font-size: 21px; line-height: 1.22; }
.subject-en { margin: 0; color: var(--muted); font-size: 13px; }
.subject-progress-row { display: flex; justify-content: space-between; margin-top: auto; padding-top: 28px; color: var(--muted); font-size: 12px; }
.subject-progress-row strong { color: var(--text); }
.progress-track { height: 5px; margin-top: 9px; overflow: hidden; border-radius: 999px; background: rgba(151,189,213,.11); }
.progress-track span { display: block; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--accent), var(--accent-2)); }
.subject-button { margin-top: 16px; width: 100%; }
.subject-locked { margin-top: auto; padding-top: 25px; color: var(--muted); line-height: 1.5; font-size: 12px; }

.course-intro { display: grid; grid-template-columns: 1fr 330px; gap: 40px; align-items: end; padding-block: 58px 35px; }
.course-progress-box { padding: 19px; border-radius: 18px; }
.course-progress-box > span, .course-progress-box small { color: var(--muted); font-size: 11px; }
.course-progress-box strong { display: block; margin-top: 4px; font-size: 29px; }
.course-progress-box small { display: block; margin-top: 9px; }
.stage-strip { display: grid; grid-template-columns: repeat(5, 1fr); gap: 9px; padding-bottom: 40px; }
.stage-chip { display: grid; min-height: 98px; padding: 13px; border: 1px solid var(--line); border-radius: 15px; background: var(--panel); }
.stage-chip > span { color: var(--accent); font-size: 11px; font-weight: 850; }
.stage-chip strong { align-self: end; font-size: 12px; }
.stage-chip small { margin-top: 3px; color: var(--muted); font-size: 10px; }

.lesson-list { padding-bottom: 90px; }
.lesson-stage-heading { margin: 38px 0 12px; padding-bottom: 12px; border-bottom: 1px solid var(--line); }
.lesson-stage-heading > span { color: var(--accent); font-size: 11px; text-transform: uppercase; letter-spacing: .13em; }
.lesson-stage-heading h2 { margin: 4px 0 0; font-size: 24px; }
.lesson-row {
  display: grid;
  grid-template-columns: 50px 1fr auto 28px;
  gap: 15px;
  align-items: center;
  min-height: 82px;
  padding: 11px 15px;
  margin-bottom: 7px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: color-mix(in srgb, var(--panel) 88%, transparent);
  transition: transform .16s ease, border-color .16s ease, background .16s ease;
}
.lesson-row:hover { transform: translateX(3px); border-color: rgba(72,198,255,.35); background: var(--panel); }
.lesson-number { color: var(--accent-2); font-variant-numeric: tabular-nums; font-weight: 800; }
.lesson-row-copy { display: grid; min-width: 0; }
.lesson-title-line { display: flex; gap: 7px; align-items: center; flex-wrap: wrap; }
.lesson-title-line strong { font-size: 14px; }
.lesson-row-copy > span { margin-top: 3px; color: var(--muted); font-size: 11px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.micro-pill { padding: 3px 6px; font-size: 9px; font-weight: 800; }
.micro-danger { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 32%, transparent); }
.lesson-row-meta { display: flex; gap: 12px; color: var(--muted); font-size: 11px; }
.lesson-check { display: grid; place-content: center; width: 22px; height: 22px; border: 1px solid var(--line); border-radius: 50%; color: transparent; font-size: 11px; }
.lesson-row.is-complete .lesson-check { background: var(--success); border-color: var(--success); color: #082318; }
.lesson-row.is-complete { opacity: .75; }

.lesson-layout { display: grid; grid-template-columns: 270px minmax(0, 820px); gap: 45px; align-items: start; justify-content: center; padding-block: 45px 90px; }
.lesson-sidebar { position: sticky; top: 104px; display: grid; gap: 13px; }
.back-link { margin-bottom: 3px; color: var(--muted); font-size: 12px; }
.back-link:hover { color: var(--accent-2); }
.lesson-index-card, .lesson-meta-card { padding: 18px; border-radius: 17px; }
.lesson-index-card strong { display: block; margin: 5px 0; font-size: 19px; }
.lesson-index-card p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.5; }
.lesson-meta-card h3 { margin: 0 0 11px; font-size: 13px; }
.lesson-meta-card dl { margin: 0; }
.lesson-meta-card dl div { display: flex; justify-content: space-between; gap: 10px; padding: 7px 0; border-bottom: 1px solid var(--line); font-size: 11px; }
.lesson-meta-card dt { color: var(--muted); }
.lesson-meta-card dd { margin: 0; text-align: right; }
.lesson-badges { display: flex; gap: 5px; flex-wrap: wrap; margin-top: 13px; }

.lesson-reader { min-width: 0; }
.lesson-reader-header { padding: 15px 0 27px; border-bottom: 1px solid var(--line); }
.lesson-reader-header h1 { margin: 8px 0 20px; font-size: clamp(34px, 5vw, 52px); letter-spacing: -.035em; line-height: 1.02; }
.lesson-actions { display: flex; gap: 9px; flex-wrap: wrap; }

.markdown-body { padding-top: 25px; font-size: 16px; line-height: 1.74; }
.markdown-body > h1:first-child { display: none; }
.markdown-body h1 { margin: 48px 0 16px; font-size: 31px; letter-spacing: -.02em; }
.markdown-body h2 { margin: 42px 0 14px; font-size: 25px; letter-spacing: -.02em; }
.markdown-body h3 { margin: 30px 0 10px; font-size: 19px; }
.markdown-body p, .markdown-body li { color: color-mix(in srgb, var(--text) 88%, var(--muted)); }
.markdown-body strong { color: var(--text); }
.markdown-body blockquote { margin: 23px 0; padding: 13px 17px; border-left: 3px solid var(--accent); border-radius: 0 10px 10px 0; background: var(--accent-soft); }
.markdown-body blockquote p { margin: 0; color: var(--text); }
.markdown-body code { padding: 2px 5px; border: 1px solid var(--line); border-radius: 5px; background: rgba(0,0,0,.13); color: var(--accent-2); font-family: "SFMono-Regular", Consolas, monospace; font-size: .9em; }
.markdown-body pre { overflow-x: auto; padding: 15px; border: 1px solid var(--line); border-radius: 13px; background: rgba(0,0,0,.18); }
.markdown-body pre code { padding: 0; border: 0; background: transparent; }
.markdown-body table { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 13px; }
.markdown-body th, .markdown-body td { padding: 9px; border: 1px solid var(--line); text-align: left; }
.markdown-body th { background: var(--accent-soft); }
.markdown-body hr { margin: 37px 0; border: 0; border-top: 1px solid var(--line); }
.markdown-body a { color: var(--accent-2); text-decoration: underline; text-underline-offset: 3px; }

.lesson-pagination { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 55px; padding-top: 22px; border-top: 1px solid var(--line); }
.lesson-pagination a { display: grid; padding: 16px; border: 1px solid var(--line); border-radius: 14px; background: var(--panel); }
.lesson-pagination a:hover { border-color: rgba(72,198,255,.35); }
.lesson-pagination span { color: var(--muted); font-size: 10px; text-transform: uppercase; letter-spacing: .1em; }
.lesson-pagination strong { margin-top: 5px; font-size: 12px; }
.lesson-pagination .next { text-align: right; }

.admin-reactions { padding-block: 64px 100px; }
.admin-reactions-header { display: flex; justify-content: space-between; gap: 30px; align-items: end; margin-bottom: 30px; }
.admin-reactions-header h1 { margin: 8px 0 10px; font-size: clamp(38px, 6vw, 64px); letter-spacing: -.04em; }
.admin-reactions-header p { margin: 0; color: var(--muted); }
.admin-summary { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 18px; }
.admin-summary article, .admin-data-card { border: 1px solid var(--line); border-radius: 18px; background: var(--panel); }
.admin-summary article { display: grid; padding: 20px; }
.admin-summary strong { font-size: 30px; }
.admin-summary span { color: var(--muted); font-size: 12px; }
.admin-data-card { padding: 22px; margin-top: 14px; }
.admin-data-card h2 { margin: 0 0 16px; }
.admin-table-wrap { overflow-x: auto; }
.admin-data-card table { width: 100%; border-collapse: collapse; font-size: 13px; }
.admin-data-card th, .admin-data-card td { padding: 11px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.admin-data-card th { color: var(--muted); font-size: 11px; text-transform: uppercase; letter-spacing: .06em; }
.admin-data-card td a { color: var(--accent-2); }
.admin-empty { color: var(--muted); }
.admin-data-card[id] { scroll-margin-top: 100px; }
.admin-email { overflow-wrap: anywhere; min-width: 150px; }
.admin-row-actions { display: flex; flex-wrap: wrap; gap: 8px 18px; }
.admin-row-actions a { display: inline-flex; align-items: center; min-height: 40px; text-decoration: underline; text-underline-offset: 3px; }
.admin-data-card td a.admin-delete-link { color: var(--danger); }
.admin-notice { padding: 12px 16px; border: 1px solid var(--success); border-radius: 10px; color: var(--success); }
.admin-entry { max-width: 760px; }
.admin-entry > .text-link { display: inline-block; margin-bottom: 28px; }
.admin-entry h1 { font-size: clamp(30px, 5vw, 44px); }
.admin-entry-form { display: grid; gap: 14px; }
.admin-entry-form > label { font-weight: 700; }
.admin-entry-form input[type="email"] { width: 100%; min-width: 0; padding: 14px; color: var(--text); background: var(--bg-soft); border: 1px solid var(--line); border-radius: 10px; }
.admin-entry-form input:focus-visible, .admin-form-actions :focus-visible, .admin-row-actions a:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.admin-entry-form p { margin: 0; line-height: 1.6; }
.admin-entry-email { font-size: 20px; font-weight: 700; overflow-wrap: anywhere; }
.admin-form-help { color: var(--muted); font-size: 14px; }
.admin-form-error { color: var(--danger); }
.admin-delete-confirm { display: flex; align-items: start; gap: 10px; line-height: 1.5; padding-block: 8px; }
.admin-delete-confirm input { margin-top: 5px; accent-color: var(--danger); }
.admin-form-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 12px; }
.button-danger { color: var(--danger); border: 1px solid var(--danger); background: color-mix(in srgb, var(--danger) 10%, var(--panel-strong)); }

body.focus-mode .topbar, body.focus-mode .footer, body.focus-mode .lesson-sidebar { display: none; }
body.focus-mode .lesson-layout { grid-template-columns: minmax(0, 860px); padding-top: 22px; }
body.focus-mode .lesson-reader-header { padding-top: 0; }

.footer { display: flex; justify-content: space-between; gap: 25px; padding: 35px max(22px, calc((100vw - var(--shell)) / 2)); border-top: 1px solid var(--line); color: var(--muted); font-size: 11px; }
.footer p { margin: 5px 0 0; }
.footer-note { max-width: 520px; text-align: right; }

@media (max-width: 980px) {
  .hero { grid-template-columns: 1fr; min-height: auto; padding-top: 55px; }
  .hero-instrument { max-width: 620px; width: 100%; justify-self: center; }
  .pillar-grid { grid-template-columns: 1fr 1fr; }
  .subject-grid { grid-template-columns: 1fr 1fr; }
  .course-intro { grid-template-columns: 1fr; }
  .credibility-intro { grid-template-columns: 1fr; gap: 22px; }
  .impression-card { grid-template-columns: 1fr; }
  .verification-legend { grid-template-columns: 1fr 1fr; }
  .stage-strip { grid-template-columns: repeat(3, 1fr); }
  .lesson-layout { grid-template-columns: 1fr; }
  .admin-reactions-header { align-items: start; }
  .lesson-sidebar { position: static; grid-template-columns: 1fr 1fr; }
  .lesson-sidebar > .back-link { grid-column: 1/-1; }
}

@media (max-width: 650px) {
  .shell { width: min(calc(100% - 24px), var(--shell)); }
  .topbar { height: 68px; padding-inline: 12px; }
  .brand-copy small { display: none; }
  .brand-mark { width: 38px; height: 38px; }
  .nav-links a:first-child { display: none; }
  .hero { gap: 35px; padding-block: 45px; }
  .hero h1 { font-size: 45px; }
  .hero-stats { gap: 15px; }
  .hero-stats strong { font-size: 18px; }
  .hero-instrument { min-height: 390px; padding: 20px; }
  .pillar-grid, .subject-grid, .credibility-grid { grid-template-columns: 1fr; }
  .impression-card { padding: 25px; }
  .impression-options { grid-template-columns: 1fr; }
  .score-row { grid-template-columns: repeat(6, 1fr); }
  .verification-legend { grid-template-columns: 1fr; }
  .course-hero-card { grid-template-columns: 1fr; padding: 25px; }
  .radar-ring { width: 100px; height: 100px; }
  .stage-strip { grid-template-columns: 1fr 1fr; }
  .lesson-row { grid-template-columns: 38px 1fr 25px; }
  .lesson-row-meta { display: none; }
  .lesson-sidebar { grid-template-columns: 1fr; }
  .lesson-pagination { grid-template-columns: 1fr; }
  .admin-summary { grid-template-columns: 1fr; }
  .admin-reactions-header { flex-direction: column; }
  .footer { flex-direction: column; }
  .footer-note { text-align: left; }
  .markdown-body { font-size: 15px; }
}