/* Hallmark · pre-emit critique: P4 H4 E4 S5 R4 V4
 * macrostructure: instrument-panel hero -> course strip -> role split -> module lab -> feature board -> access panel
 */
:root {
  --font-body: "Inter", system-ui, sans-serif;
  --font-display: "Space Grotesk", system-ui, sans-serif;
  --color-paper: #f7fbf8;
  --color-panel: #ffffff;
  --color-panel-raised: #eff8f2;
  --color-ink: #123026;
  --color-muted: #5f756b;
  --color-line: rgba(18, 48, 38, 0.14);
  --color-accent: #23825f;
  --color-accent-strong: #0f6749;
  --color-accent-soft: rgba(35, 130, 95, 0.11);
  --color-steel: #dceee5;
  --color-steel-2: #0d2f22;
  --color-warning: #f0b85a;
  --shadow-panel: 0 24px 80px rgba(18, 48, 38, 0.12);
  --radius: 8px;
  --content-max: 1160px;
  --space-page: clamp(1.25rem, 5vw, 4.5rem);
  --section-y: clamp(3rem, 7vw, 5.5rem);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  overflow-x: clip;
  scroll-behavior: smooth;
}

body {
  background:
    linear-gradient(180deg, #ffffff 0%, var(--color-paper) 42%, #eef8f2 100%);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.js .reveal {
  opacity: 0;
  transform: translateY(18px);
}

.js .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
  transition:
    opacity 680ms ease,
    transform 680ms ease;
  transition-delay: var(--reveal-delay, 0ms);
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

#top {
  scroll-margin-top: 72px;
}

button {
  font: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 72px;
  padding-inline: max(var(--space-page), calc((100vw - var(--content-max)) / 2));
  background: rgba(255, 255, 255, 0.9);
  border-bottom: 1px solid var(--color-line);
  backdrop-filter: blur(18px);
  animation: headerDrop 520ms ease both;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
  transition: transform 180ms ease;
}

.brand:hover {
  transform: translateY(-1px);
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius);
  background: var(--color-steel);
  color: var(--color-accent-strong);
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.02em;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-family: var(--font-display);
  font-size: 1rem;
}

.brand small {
  color: var(--color-muted);
  font-size: 0.78rem;
}

.site-nav {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.site-nav a {
  border-radius: var(--radius);
  color: var(--color-muted);
  font-size: 0.92rem;
  font-weight: 700;
  padding: 0.7rem 0.9rem;
  transition:
    background 180ms ease,
    color 180ms ease,
    transform 180ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  background: var(--color-accent-soft);
  color: var(--color-accent-strong);
  transform: translateY(-1px);
  outline: none;
}

.mobile-only {
  display: none;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.header-login,
.header-start {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  font-size: 0.92rem;
  font-weight: 800;
  min-height: 42px;
  padding: 0.7rem 1rem;
  transition:
    background 180ms ease,
    color 180ms ease,
    transform 180ms ease;
}

.header-login {
  border: 1px solid transparent;
  color: var(--color-accent-strong);
}

.header-start {
  background: var(--color-accent);
  color: white;
}

.header-login:hover,
.header-login:focus-visible {
  background: var(--color-accent-soft);
  transform: translateY(-1px);
  outline: none;
}

.header-start:hover,
.header-start:focus-visible {
  background: #2f946e;
  transform: translateY(-1px);
  outline: none;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: var(--color-panel);
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: var(--color-ink);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 1.05fr);
  gap: clamp(2.5rem, 6vw, 5.5rem);
  align-items: stretch;
  width: min(calc(100% - (var(--space-page) * 2)), var(--content-max));
  min-height: calc(92vh - 72px);
  margin-inline: auto;
  padding-block: clamp(1rem, 2.4vw, 1.8rem) clamp(2.5rem, 7vw, 5.5rem);
}

.hero-copy {
  align-self: center;
  max-width: 680px;
  animation: fadeUp 760ms 120ms ease both;
}

.eyebrow,
.section-kicker {
  color: var(--color-accent);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  font-family: var(--font-display);
  letter-spacing: 0;
  line-height: 1.02;
  margin: 0;
  overflow-wrap: normal;
  word-break: normal;
}

h1 {
  font-size: clamp(2.65rem, 6.5vw, 5.6rem);
  max-width: 11ch;
  margin-top: 0.75rem;
}

.hero-title {
  font-size: clamp(2.65rem, 5.7vw, 5rem);
  max-width: 13.5ch;
}

.hero-title span {
  display: block;
  white-space: nowrap;
}

h2 {
  font-size: clamp(1.8rem, 3.2vw, 3.35rem);
}

h3 {
  font-size: 1.18rem;
}

p {
  margin: 0;
}

.hero-lede {
  max-width: 58ch;
  margin-top: 1.25rem;
  color: var(--color-muted);
  font-size: clamp(1rem, 1.5vw, 1.16rem);
}

.hero-actions,
.access-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.15rem;
  min-height: 46px;
  border: 1px solid var(--color-ink);
  border-radius: var(--radius);
  font-weight: 800;
  padding: 0.78rem 1rem;
  box-shadow: 0 0 0 rgba(0, 0, 0, 0);
  transition:
    transform 180ms ease,
    background 180ms ease,
    color 180ms ease,
    border-color 180ms ease,
    box-shadow 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.18);
  outline: none;
}

.button.primary {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: white;
}

.button.secondary {
  background: rgba(255, 255, 255, 0.72);
  border-color: var(--color-line);
  color: var(--color-ink);
}

.button small {
  color: inherit;
  font-size: 0.75rem;
  font-weight: 700;
  opacity: 0.72;
}

.machine-panel {
  position: relative;
  min-height: 560px;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0)),
    var(--color-panel-raised);
  box-shadow: var(--shadow-panel);
  animation: fadeScale 820ms 220ms ease both;
}

.machine-panel::before {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  content: "";
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(18, 48, 38, 0.18)),
    radial-gradient(circle at 75% 42%, rgba(35, 130, 95, 0.1), transparent 24rem),
    linear-gradient(135deg, rgba(255, 255, 255, 0.12), rgba(35, 130, 95, 0.08));
  mix-blend-mode: soft-light;
}

.machine-panel::after {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  content: "";
  box-shadow: inset 0 0 0 1px rgba(35, 130, 95, 0.1);
}

.machine-photo {
  width: 100%;
  height: 100%;
  filter: brightness(1) saturate(0.98) contrast(1.02);
  object-fit: cover;
  transform: scale(1.02);
  transition: transform 900ms ease, filter 280ms ease;
}

.machine-panel:hover .machine-photo {
  transform: scale(1.055);
}

.status-grid {
  position: absolute;
  z-index: 3;
  right: 1.1rem;
  bottom: 1.1rem;
  left: 1.1rem;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.75rem;
  margin: 0;
}

.status-grid div {
  min-width: 0;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid rgba(18, 48, 38, 0.12);
  color: var(--color-ink);
  padding: 0.9rem 1rem 1rem;
  backdrop-filter: blur(10px);
  transition:
    background 180ms ease,
    transform 180ms ease;
}

.status-grid div:hover {
  background: white;
  transform: translateY(-3px);
}

.status-grid dt {
  color: var(--color-accent-strong);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.status-grid dd {
  margin: 0.18rem 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.15vw, 2.2rem);
  font-weight: 700;
  line-height: 0.95;
  text-transform: none;
}

.split-section,
.module-lab,
.feature-board,
.access-panel {
  width: min(calc(100% - (var(--space-page) * 2)), var(--content-max));
  margin-inline: auto;
  padding: var(--section-y) 0;
}

.split-section {
  display: grid;
  grid-template-columns: minmax(280px, 0.42fr) minmax(0, 0.58fr);
  grid-template-areas:
    "kicker roles"
    "heading roles";
  align-items: center;
  gap: 0.9rem clamp(2rem, 5vw, 4.5rem);
}

.split-section .section-kicker {
  grid-area: kicker;
  align-self: end;
}

.split-section .section-heading {
  grid-area: heading;
  align-self: start;
  max-width: 500px;
}

.split-section .section-heading h2 {
  font-size: clamp(2rem, 3.7vw, 4rem);
  max-width: 11ch;
}

.split-section .section-heading p {
  max-width: 44ch;
}

.section-heading p,
.module-lab > div:first-child p,
.access-panel p {
  max-width: 64ch;
  margin-top: 1rem;
  color: var(--color-muted);
  font-size: 0.98rem;
}

.role-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  grid-area: roles;
  gap: 1rem;
}

.role-card,
.feature-grid article,
.module-detail {
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: var(--color-panel);
  transition:
    border-color 180ms ease,
    opacity 180ms ease,
    transform 180ms ease,
    box-shadow 180ms ease;
}

.role-card:hover,
.feature-grid article:hover,
.module-detail:hover {
  border-color: rgba(126, 224, 184, 0.28);
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.2);
  transform: translateY(-3px);
}

.role-card {
  padding: clamp(1.25rem, 3vw, 2rem);
}

.role-card.dark {
  background: linear-gradient(135deg, #e9f7ef, #ffffff);
  color: var(--color-ink);
}

.role-card ul {
  display: grid;
  gap: 0.75rem;
  margin: 1rem 0 0;
  padding-left: 1.1rem;
  color: var(--color-muted);
}

.role-card.dark ul {
  color: var(--color-muted);
}

.module-lab {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(270px, 0.42fr);
  gap: 1rem;
  background: transparent;
  border-block: 1px solid var(--color-line);
}

.module-tabs {
  display: grid;
  gap: 0.5rem;
  align-self: start;
}

.tab {
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: var(--color-panel);
  color: var(--color-muted);
  cursor: pointer;
  font-weight: 800;
  padding: 0.9rem 1rem;
  text-align: left;
  transition:
    background 180ms ease,
    border-color 180ms ease,
    color 180ms ease,
    transform 180ms ease;
}

.tab.active,
.tab:hover,
.tab:focus-visible {
  background: var(--color-accent-soft);
  border-color: rgba(35, 130, 95, 0.32);
  color: var(--color-accent-strong);
  transform: translateX(3px);
  outline: none;
}

.module-detail {
  grid-column: 1 / -1;
  padding: clamp(1.25rem, 4vw, 2.5rem);
  background:
    linear-gradient(135deg, var(--color-accent-soft), transparent 42%),
    var(--color-panel-raised);
}

.module-detail.is-changing {
  opacity: 0;
  transform: translateY(8px);
}

.module-detail span {
  color: var(--color-accent);
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
}

.module-detail h3 {
  margin-top: 0.5rem;
  font-size: clamp(1.55rem, 2.4vw, 2.4rem);
}

.module-detail p {
  max-width: 76ch;
  margin-top: 0.9rem;
  color: var(--color-muted);
}

.feature-board {
  display: grid;
  grid-template-columns: minmax(220px, 0.38fr) minmax(0, 0.62fr);
  gap: clamp(1.5rem, 5vw, 4rem);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.feature-grid article {
  padding: 1.25rem;
}

.feature-grid p {
  margin-top: 0.65rem;
  color: var(--color-muted);
}

.access-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 340px);
  align-items: center;
  gap: clamp(1.5rem, 5vw, 4rem);
  margin-bottom: var(--section-y);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(35, 130, 95, 0.1), transparent 44%),
    white;
  color: var(--color-ink);
  padding: clamp(1.5rem, 4vw, 2.6rem);
  position: relative;
  overflow: hidden;
}

.access-panel::before {
  position: absolute;
  top: -30%;
  right: -12%;
  width: 16rem;
  height: 16rem;
  border-radius: 999px;
  background: rgba(35, 130, 95, 0.08);
  content: "";
  filter: blur(28px);
  pointer-events: none;
}

.access-copy {
  position: relative;
  z-index: 1;
  max-width: 680px;
}

.access-panel p {
  color: var(--color-muted);
}

.access-panel .access-actions {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 0.75rem;
  margin-top: 0;
  padding: 0.75rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: #f2faf5;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(18px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeScale {
  from {
    opacity: 0;
    transform: translateY(18px) scale(0.985);
  }

  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes headerDrop {
  from {
    opacity: 0;
    transform: translateY(-12px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

  .js .reveal {
    opacity: 1;
    transform: none;
  }
}

.access-panel .button {
  flex-direction: column;
  align-items: flex-start;
  min-height: 68px;
  padding: 0.9rem 1rem;
  text-align: left;
}

.access-panel .button.primary {
  background: var(--color-accent);
  color: white;
  border-color: var(--color-accent);
}

.access-panel .button.secondary {
  color: var(--color-ink);
  border-color: var(--color-line);
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem;
  width: min(calc(100% - (var(--space-page) * 2)), var(--content-max));
  margin-inline: auto;
  padding: 1.5rem 0;
  color: var(--color-muted);
  font-size: 0.9rem;
}

.chatbot-toggle {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  z-index: 30;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  min-height: 48px;
  border: 0;
  border-radius: 999px;
  background: var(--color-accent);
  color: white;
  cursor: pointer;
  font-weight: 800;
  padding: 0.85rem 1.15rem;
  box-shadow: 0 18px 42px rgba(18, 48, 38, 0.2);
  transition: background 180ms ease, transform 180ms ease;
}

.chatbot-icon {
  position: relative;
  display: inline-grid;
  place-items: center;
  width: 28px;
  height: 24px;
  border-radius: 9px 9px 11px 11px;
  background: white;
  box-shadow: inset 0 -2px 0 rgba(18, 48, 38, 0.12);
}

.chatbot-icon::before {
  position: absolute;
  top: -7px;
  left: 50%;
  width: 2px;
  height: 7px;
  background: white;
  content: "";
  transform: translateX(-50%);
}

.chatbot-icon::after {
  position: absolute;
  top: -10px;
  left: 50%;
  width: 7px;
  height: 7px;
  border: 2px solid white;
  border-radius: 999px;
  background: var(--color-accent);
  content: "";
  transform: translateX(-50%);
}

.chatbot-icon span {
  position: relative;
  width: 4px;
  height: 4px;
  border-radius: 999px;
  background: var(--color-accent);
  box-shadow: 10px 0 0 var(--color-accent);
}

.chatbot-icon span::after {
  position: absolute;
  top: 8px;
  left: 2px;
  width: 10px;
  height: 3px;
  border-radius: 999px;
  background: var(--color-accent);
  content: "";
}

.chatbot-toggle:hover,
.chatbot-toggle:focus-visible {
  background: var(--color-accent-strong);
  transform: translateY(-2px);
  outline: none;
}

.chatbot-widget {
  position: fixed;
  right: 1.25rem;
  bottom: 5.25rem;
  z-index: 30;
  width: min(390px, calc(100vw - 2rem));
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: white;
  box-shadow: 0 24px 80px rgba(18, 48, 38, 0.18);
}

.chatbot-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid var(--color-line);
  background: #f2faf5;
  color: var(--color-ink);
  padding: 0.8rem 0.95rem;
}

.chatbot-head > div {
  display: grid;
  gap: 0.1rem;
}

.chatbot-head span {
  font-family: var(--font-display);
  font-weight: 800;
}

.chatbot-head small {
  color: var(--color-muted);
  font-weight: 700;
}

.chatbot-close {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 1px solid var(--color-line);
  border-radius: 999px;
  background: white;
  color: var(--color-ink);
  cursor: pointer;
  font-size: 1.35rem;
  line-height: 1;
}

.chatbot-widget iframe {
  display: block;
  width: 100%;
  height: min(600px, calc(100vh - 7rem));
  border: 0;
}

.login-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background:
    radial-gradient(circle at 10% 12%, rgba(35, 130, 95, 0.16), transparent 18rem),
    radial-gradient(circle at 88% 82%, rgba(126, 224, 184, 0.22), transparent 20rem),
    linear-gradient(135deg, #f8fbf8 0%, #edf8f1 100%);
  padding: clamp(1rem, 3vw, 2rem);
}

.login-shell {
  position: relative;
  display: grid;
  grid-template-columns: minmax(300px, 0.82fr) minmax(420px, 1fr);
  width: min(1180px, 100%);
  min-height: min(760px, calc(100vh - 4rem));
  overflow: hidden;
  border: 1px solid rgba(18, 48, 38, 0.12);
  border-radius: 32px;
  background: rgba(255, 255, 255, 0.78);
  box-shadow: 0 34px 110px rgba(18, 48, 38, 0.16);
}

.login-showcase {
  position: relative;
  min-height: auto;
  overflow: hidden;
  border-right: 1px solid rgba(255, 255, 255, 0.14);
  background:
    linear-gradient(155deg, #09261d 0%, #0f4936 52%, #23825f 100%);
}

.login-showcase::before {
  position: absolute;
  inset: 0;
  z-index: 1;
  content: "";
  background:
    radial-gradient(circle at 12% 18%, rgba(126, 224, 184, 0.24), transparent 16rem),
    radial-gradient(circle at 86% 84%, rgba(255, 255, 255, 0.12), transparent 18rem),
    linear-gradient(135deg, rgba(255, 255, 255, 0.08), transparent 46%);
}

.login-showcase::after {
  position: absolute;
  inset: 0;
  z-index: 1;
  content: "";
  background-image: radial-gradient(rgba(255, 255, 255, 0.22) 1px, transparent 1px);
  background-size: 30px 30px;
  mask-image: linear-gradient(135deg, black, transparent 74%);
  opacity: 0.45;
}

.register-showcase {
  background:
    linear-gradient(155deg, #08231a 0%, #145640 50%, #2a906a 100%);
}

.register-showcase::before {
  background:
    radial-gradient(circle at 70% 20%, rgba(126, 224, 184, 0.22), transparent 18rem),
    radial-gradient(circle at 20% 82%, rgba(255, 255, 255, 0.1), transparent 19rem),
    linear-gradient(135deg, rgba(255, 255, 255, 0.08), transparent 46%);
}

.login-showcase-content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 2rem;
  min-height: 100%;
  padding: clamp(1.75rem, 5vw, 4.2rem);
}

.login-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  width: fit-content;
  color: white;
}

.login-brand strong,
.login-brand small {
  display: block;
}

.login-brand strong {
  font-family: var(--font-display);
  font-size: 1.05rem;
}

.login-brand small {
  color: rgba(255, 255, 255, 0.68);
  font-size: 0.8rem;
}

.login-brand .brand-mark {
  background: rgba(255, 255, 255, 0.13);
  color: #b9f5d7;
}

.login-showcase-copy {
  max-width: 560px;
}

.login-showcase-copy .eyebrow {
  color: #8df2c4;
}

.login-showcase-copy h1 {
  max-width: 9.5ch;
  margin-top: 0.7rem;
  color: white;
  font-size: clamp(2.9rem, 5.4vw, 5rem);
  line-height: 0.96;
}

.login-showcase-copy h1 span {
  display: block;
  overflow-wrap: normal;
  word-break: keep-all;
}

.login-showcase-copy p:not(.eyebrow) {
  max-width: 44ch;
  margin-top: 1rem;
  color: rgba(255, 255, 255, 0.72);
  font-size: 1.05rem;
  line-height: 1.55;
}

.login-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
  max-width: 430px;
  margin: 0;
}

.login-stats div {
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.1);
  box-shadow: 0 16px 34px rgba(0, 0, 0, 0.12);
  padding: 1rem 1.1rem;
  backdrop-filter: blur(10px);
}

.login-stats dt {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
}

.login-stats dd {
  margin: 0.2rem 0 0;
  color: white;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
}

.register-benefits {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  max-width: 520px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.register-benefits li {
  position: relative;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.1);
  color: white;
  box-shadow: 0 16px 34px rgba(0, 0, 0, 0.12);
  font-weight: 700;
  padding: 0.85rem 1rem 0.85rem 2.35rem;
  backdrop-filter: blur(10px);
}

.register-benefits li::before {
  position: absolute;
  top: 0.92rem;
  left: 1rem;
  color: #8df2c4;
  content: "+";
  font-weight: 800;
}

.login-panel {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  min-height: auto;
  background:
    radial-gradient(circle at 92% 10%, rgba(35, 130, 95, 0.08), transparent 14rem),
    linear-gradient(180deg, #ffffff 0%, #f7fbf8 100%);
  padding: clamp(1.5rem, 5vw, 4.2rem);
}

.login-back {
  position: absolute;
  top: clamp(1rem, 3vw, 2rem);
  left: clamp(1rem, 3vw, 2rem);
  width: auto;
  margin: 0;
  color: var(--color-accent-strong);
  font-size: 0.85rem;
  font-weight: 700;
  border-radius: 999px;
  background: #edf7f1;
  padding: 0.6rem 0.85rem;
  transition: color 180ms ease, transform 180ms ease;
}

.login-back:hover,
.login-back:focus-visible {
  background: #dff3e7;
  color: var(--color-accent-strong);
  transform: translateX(-2px);
  outline: none;
}

.login-card {
  width: min(100%, 500px);
  margin-block: auto;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  padding: 0;
  animation: fadeUp 700ms ease both;
  backdrop-filter: none;
}

.login-card-head h2 {
  margin-top: 0.5rem;
  font-size: clamp(2rem, 3.2vw, 2.75rem);
  line-height: 1.05;
}

.login-card-head p:not(.eyebrow) {
  margin-top: 0.65rem;
  color: var(--color-muted);
  font-size: 0.95rem;
}

.login-switch {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.4rem;
  margin-top: 1.6rem;
  padding: 0.3rem;
  border: 1px solid rgba(18, 48, 38, 0.12);
  border-radius: 999px;
  background: #eef8f2;
}

.login-switch button {
  min-height: 46px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--color-muted);
  cursor: pointer;
  font-weight: 800;
  transition: background 180ms ease, color 180ms ease;
}

.login-switch button.active {
  background: var(--color-accent-strong);
  color: white;
  box-shadow: 0 10px 24px rgba(35, 130, 95, 0.2);
}

.login-message {
  margin-top: 1rem;
  border: 1px solid rgba(126, 224, 184, 0.2);
  border-radius: 16px;
  background: rgba(35, 130, 95, 0.14);
  color: var(--color-accent-strong);
  padding: 0.85rem 1rem;
  font-size: 0.9rem;
}

.login-form {
  display: none;
  gap: 0.9rem;
  margin-top: 1.25rem;
}

.login-form.active {
  display: grid;
}

.login-form label {
  display: grid;
  gap: 0.4rem;
}

.login-form label span {
  color: var(--color-ink);
  font-size: 0.86rem;
  font-weight: 700;
}

.login-form input {
  width: 100%;
  min-height: 48px;
  border: 1px solid var(--color-line);
  border-radius: 14px;
  background: white;
  color: var(--color-ink);
  font: inherit;
  padding: 0.72rem 0.95rem;
  outline: none;
  transition: border-color 180ms ease, box-shadow 180ms ease;
}

.login-form input::placeholder {
  color: #64726c;
}

.login-form input:focus {
  border-color: rgba(126, 224, 184, 0.42);
  box-shadow: 0 0 0 4px rgba(35, 130, 95, 0.18);
}

.login-form .button {
  width: 100%;
  min-height: 50px;
  border: 0;
  border-radius: 14px;
  cursor: pointer;
}

.register-form {
  margin-top: 1.35rem;
}

.login-hint,
.login-register {
  color: var(--color-muted);
  font-size: 0.9rem;
}

.login-register {
  margin-top: 1.45rem;
  text-align: center;
}

.login-register a {
  color: var(--color-accent-strong);
  font-weight: 800;
}

.dashboard-page {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  min-height: 100vh;
  background: #f4faf6;
}

.dashboard-sidebar {
  position: sticky;
  top: 0;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  height: 100vh;
  border-right: 1px solid var(--color-line);
  background: rgba(255, 255, 255, 0.9);
  padding: 1.5rem;
}

.dashboard-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
}

.dashboard-brand strong,
.dashboard-brand small {
  display: block;
}

.dashboard-brand strong {
  font-family: var(--font-display);
}

.dashboard-brand small,
.dashboard-user small {
  color: var(--color-muted);
  font-size: 0.8rem;
}

.dashboard-nav {
  display: grid;
  gap: 0.35rem;
  margin-top: 1rem;
}

.dashboard-nav a {
  border-radius: var(--radius);
  color: var(--color-muted);
  font-weight: 800;
  padding: 0.85rem 1rem;
  transition: background 180ms ease, color 180ms ease, transform 180ms ease;
}

.dashboard-nav a:hover,
.dashboard-nav a:focus-visible,
.dashboard-nav a.active {
  background: var(--color-accent-soft);
  color: var(--color-accent-strong);
  transform: translateX(2px);
  outline: none;
}

.dashboard-user {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: auto;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: var(--color-panel-raised);
  padding: 0.8rem;
}

.dashboard-user > span {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 999px;
  background: var(--color-accent);
  color: white;
  font-weight: 800;
}

.dashboard-main {
  display: grid;
  gap: 1.25rem;
  width: min(calc(100% - 2rem), 1120px);
  margin-inline: auto;
  padding: 1.5rem 0 3rem;
}

.dashboard-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.dashboard-topbar h1 {
  max-width: none;
  margin-top: 0.35rem;
  font-size: clamp(2rem, 4vw, 3.4rem);
}

.dashboard-topbar p:not(.eyebrow),
.dashboard-hero p,
.dashboard-card p:not(.eyebrow) {
  color: var(--color-muted);
}

.dashboard-hero {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: 24px;
  background:
    radial-gradient(circle at 30% 50%, rgba(255, 255, 255, 0.2) 1px, transparent 1px),
    linear-gradient(135deg, #23825f, #0f6749 58%, #123026);
  background-size: 32px 32px, auto;
  color: white;
  padding: clamp(2rem, 5vw, 3rem);
  box-shadow: var(--shadow-panel);
}

.dashboard-hero h2,
.dashboard-card h2 {
  margin-top: 0.45rem;
  font-size: clamp(1.55rem, 3vw, 2.45rem);
}

.dashboard-hero h2 {
  font-size: clamp(2rem, 4vw, 3.6rem);
}

.dashboard-hero .eyebrow,
.dashboard-hero p {
  color: #d7f3e7;
}

.dashboard-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.dashboard-hero-actions a {
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.12);
  color: white;
  font-weight: 800;
  padding: 0.78rem 1rem;
}

.dashboard-hero-actions a:first-child {
  background: white;
  color: var(--color-accent-strong);
}

.dashboard-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
  margin: 0;
}

.app-stat-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.dashboard-stats div,
.dashboard-card {
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.88);
  box-shadow: 0 18px 48px rgba(18, 48, 38, 0.08);
}

.dashboard-stats div {
  padding: 1rem;
}

.app-stat-grid div {
  padding: 1.25rem;
}

.dashboard-stats dt {
  color: var(--color-muted);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

.dashboard-stats dd {
  margin: 0.25rem 0 0;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(300px, 0.8fr);
  gap: 1rem;
}

.dashboard-section h2 {
  font-size: clamp(1.35rem, 2.5vw, 1.9rem);
  margin-bottom: 1rem;
}

.subtopic-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.subtopic-card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: white;
  box-shadow: 0 18px 48px rgba(18, 48, 38, 0.08);
  padding: 1.5rem;
  transition: box-shadow 180ms ease, transform 180ms ease;
}

.subtopic-card::before {
  position: absolute;
  top: -3rem;
  right: -3rem;
  width: 8rem;
  height: 8rem;
  border-radius: 999px;
  content: "";
  opacity: 0.12;
}

.subtopic-card:hover {
  box-shadow: 0 22px 58px rgba(18, 48, 38, 0.14);
  transform: translateY(-4px);
}

.subtopic-card span {
  display: inline-flex;
  border-radius: 999px;
  background: var(--color-accent-soft);
  color: var(--color-accent-strong);
  font-size: 0.75rem;
  font-weight: 800;
  padding: 0.35rem 0.6rem;
}

.subtopic-card h3 {
  margin-top: 1rem;
}

.subtopic-card p {
  margin-top: 0.6rem;
  color: var(--color-muted);
}

.subtopic-card small {
  display: block;
  margin-top: 1rem;
  color: var(--color-muted);
  font-weight: 700;
}

.subtopic-card.blue::before {
  background: #3b82f6;
}

.subtopic-card.amber::before {
  background: #f59e0b;
}

.subtopic-card.green::before {
  background: #22c55e;
}

.subtopic-card.red::before {
  background: #ef4444;
}

.dashboard-card {
  padding: clamp(1.25rem, 3vw, 1.75rem);
}

.dashboard-card.wide {
  min-width: 0;
}

.dashboard-card-head {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 1rem;
}

.dashboard-card-head > span {
  border-radius: 999px;
  background: var(--color-accent-soft);
  color: var(--color-accent-strong);
  font-size: 0.78rem;
  font-weight: 800;
  padding: 0.45rem 0.7rem;
  white-space: nowrap;
}

.progress-track {
  height: 12px;
  overflow: hidden;
  margin-top: 1.25rem;
  border-radius: 999px;
  background: #dceee5;
}

.progress-track span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: var(--color-accent);
}

.module-list,
.dashboard-list,
.achievement-list,
.admin-actions {
  display: grid;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.module-list div,
.dashboard-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border-radius: var(--radius);
  background: #f2faf5;
  padding: 0.85rem 1rem;
}

.module-list span,
.dashboard-list strong {
  color: var(--color-accent-strong);
  font-weight: 800;
}

.dashboard-list {
  padding: 0;
  list-style: none;
}

.available-quiz-list,
.recent-activity-list {
  display: grid;
  gap: 0.75rem;
  margin: 1.25rem 0 0;
  padding: 0;
  list-style: none;
}

.available-quiz-list a,
.recent-activity-list li {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  border-radius: var(--radius);
  padding: 0.85rem;
  transition: background 180ms ease;
}

.available-quiz-list a:hover {
  background: #f2faf5;
}

.available-quiz-list span,
.recent-activity-list span {
  display: grid;
  gap: 0.18rem;
  font-weight: 800;
}

.available-quiz-list small,
.recent-activity-list small {
  color: var(--color-muted);
  font-size: 0.78rem;
  font-weight: 600;
}

.recent-activity-list strong {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius);
  background: #dcfce7;
  color: #15803d;
  font-family: var(--font-display);
}

.achievement-list {
  grid-template-columns: 1fr;
}

.achievement-list span,
.admin-actions button {
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: white;
  color: var(--color-ink);
  font: inherit;
  font-weight: 800;
  padding: 0.85rem 1rem;
}

.admin-actions {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.admin-actions button {
  cursor: pointer;
  transition: background 180ms ease, color 180ms ease, transform 180ms ease;
}

.admin-actions button:hover,
.admin-actions button:focus-visible {
  background: var(--color-accent);
  color: white;
  transform: translateY(-2px);
  outline: none;
}

.lesson-layout {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 1rem;
}

.lesson-menu,
.lesson-content,
.quiz-card,
.admin-summary article {
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 18px 48px rgba(18, 48, 38, 0.08);
}

.lesson-menu {
  position: sticky;
  top: 1.5rem;
  display: grid;
  align-self: start;
  gap: 0.35rem;
  padding: 0.75rem;
}

.lesson-menu a {
  border-radius: var(--radius);
  color: var(--color-muted);
  font-weight: 800;
  padding: 0.8rem 0.9rem;
}

.lesson-menu a:hover,
.lesson-menu a:focus-visible,
.lesson-menu a.active {
  background: var(--color-accent-soft);
  color: var(--color-accent-strong);
  outline: none;
}

.lesson-content {
  overflow: hidden;
}

.lesson-hero,
.lesson-section {
  padding: clamp(1.25rem, 3vw, 2rem);
}

.lesson-hero {
  background:
    radial-gradient(circle at top right, rgba(35, 130, 95, 0.12), transparent 16rem),
    #ffffff;
  border-bottom: 1px solid var(--color-line);
}

.lesson-hero h2,
.lesson-section h3 {
  margin-top: 0.5rem;
}

.lesson-hero p,
.lesson-section p {
  max-width: 74ch;
  margin-top: 0.8rem;
  color: var(--color-muted);
}

.lesson-section + .lesson-section {
  border-top: 1px solid var(--color-line);
}

.lesson-callout,
.lesson-grid div {
  border-radius: var(--radius);
  background: #f2faf5;
  padding: 1rem;
}

.lesson-callout {
  display: grid;
  gap: 0.35rem;
  margin-top: 1rem;
}

.lesson-callout strong,
.lesson-grid span {
  color: var(--color-accent-strong);
  font-weight: 800;
}

.lesson-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
  margin-top: 1rem;
}

.module-resource-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.module-resource-grid a {
  border: 1px solid rgba(35, 130, 95, 0.18);
  background: #f2faf5;
  color: var(--color-accent-strong);
  font-weight: 800;
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease;
}

.module-resource-grid a {
  display: grid;
  gap: 0.35rem;
  border-radius: var(--radius);
  padding: 0.9rem;
}

.module-resource-grid a:hover,
.module-resource-grid a:focus-visible {
  border-color: rgba(35, 130, 95, 0.34);
  background: #e3f4eb;
  transform: translateY(-2px);
  outline: none;
}

.module-resource-grid span,
.module-resource-grid small {
  font-size: 0.78rem;
}

.module-resource-grid small {
  color: var(--color-muted);
  font-weight: 700;
}

.chapter-section h3 {
  font-size: clamp(1.6rem, 2.8vw, 2.35rem);
}

.chapter-title-row {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 0.5rem;
}

.chapter-title-row h3 {
  margin-top: 0;
}

.chapter-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1.25rem;
}

.chapter-block {
  border: 1px solid rgba(18, 48, 38, 0.08);
  border-radius: var(--radius);
  background: #f2faf5;
  padding: 1.15rem;
}

.chapter-block.full {
  grid-column: 1 / -1;
}

.chapter-block h4 {
  margin: 0;
  color: var(--color-ink);
  font-size: 1rem;
}

.chapter-block ol {
  display: grid;
  gap: 0.55rem;
  margin: 0.9rem 0 0;
  padding: 0;
  color: var(--color-muted);
  list-style: none;
}

.chapter-block li,
.chapter-block p {
  color: var(--color-muted);
  line-height: 1.5;
}

.chapter-block p {
  margin-top: 0.75rem;
}

.module-topic {
  border: 1px solid rgba(18, 48, 38, 0.08);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.78);
  margin-top: 0.75rem;
  overflow: hidden;
}

.module-topic summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  color: var(--color-ink);
  cursor: pointer;
  font-weight: 800;
  list-style: none;
  padding: 0.9rem 1rem;
}

.module-topic summary::-webkit-details-marker {
  display: none;
}

.module-topic summary::after {
  content: "+";
  display: inline-grid;
  place-items: center;
  flex: 0 0 auto;
  width: 1.65rem;
  height: 1.65rem;
  border-radius: 999px;
  background: var(--color-accent-soft);
  color: var(--color-accent-strong);
  font-weight: 900;
}

.module-topic[open] summary {
  border-bottom: 1px solid rgba(18, 48, 38, 0.08);
  color: var(--color-accent-strong);
}

.module-topic[open] summary::after {
  content: "-";
  background: var(--color-accent-strong);
  color: white;
}

.module-topic > div {
  padding: 1rem;
}

.module-topic p {
  margin: 0;
  color: var(--color-muted);
}

.module-topic ul {
  display: grid;
  gap: 0.45rem;
  margin: 0.75rem 0 0;
  padding-left: 1.1rem;
}

.module-topic li {
  color: var(--color-muted);
  line-height: 1.5;
}

.quiz-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.quiz-overview {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.quiz-overview article,
.quiz-chapter,
.quiz-question {
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 18px 48px rgba(18, 48, 38, 0.08);
}

.quiz-overview article {
  padding: 1.15rem;
}

.quiz-overview span,
.quiz-question > span {
  color: var(--color-accent-strong);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.quiz-overview strong {
  display: block;
  margin-top: 0.35rem;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: 2rem;
  line-height: 1;
}

.quiz-overview p {
  margin-top: 0.45rem;
  color: var(--color-muted);
  font-size: 0.9rem;
}

.quiz-bank {
  display: grid;
  gap: 1.25rem;
}

.quiz-chapter {
  overflow: hidden;
}

.quiz-chapter-head {
  border-bottom: 1px solid var(--color-line);
  background:
    radial-gradient(circle at top right, rgba(35, 130, 95, 0.12), transparent 16rem),
    #ffffff;
  padding: clamp(1.25rem, 3vw, 1.8rem);
}

.quiz-chapter-head h2 {
  margin-top: 0.45rem;
  font-size: clamp(1.6rem, 3vw, 2.35rem);
}

.quiz-question {
  display: grid;
  gap: 0.8rem;
  margin: 1rem;
  padding: clamp(1rem, 2.4vw, 1.35rem);
  box-shadow: none;
}

.quiz-question h3 {
  font-size: 1.2rem;
}

.quiz-question p,
.quiz-question li {
  color: var(--color-muted);
  line-height: 1.55;
}

.quiz-question ol {
  display: grid;
  gap: 0.45rem;
  margin: 0;
  padding-left: 1.25rem;
}

.quiz-question details {
  border-radius: var(--radius);
  background: #f2faf5;
  padding: 0.85rem 1rem;
}

.quiz-question summary {
  color: var(--color-accent-strong);
  cursor: pointer;
  font-weight: 800;
}

.quiz-question details p {
  margin-top: 0.65rem;
}

.quiz-card {
  display: grid;
  gap: 0.85rem;
  padding: clamp(1.25rem, 3vw, 1.75rem);
}

.quiz-card > span,
.admin-summary span {
  color: var(--color-accent-strong);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.quiz-card h2 {
  font-size: 1.45rem;
}

.quiz-card p,
.quiz-card small,
.admin-summary p {
  color: var(--color-muted);
}

.quiz-card div {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
}

.quiz-card button,
.admin-form button {
  min-height: 46px;
  border: 0;
  border-radius: var(--radius);
  background: var(--color-accent);
  color: white;
  cursor: pointer;
  font: inherit;
  font-weight: 800;
}

.admin-summary {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.admin-summary article {
  padding: 1.25rem;
}

.admin-summary strong {
  display: block;
  margin-top: 0.35rem;
  font-family: var(--font-display);
  font-size: 2.15rem;
}

.admin-summary p {
  margin-top: 0.4rem;
}

.admin-layout {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.admin-form {
  display: grid;
  gap: 0.9rem;
  margin-top: 1.25rem;
}

.admin-form label {
  display: grid;
  gap: 0.45rem;
}

.admin-form label span {
  font-weight: 800;
}

.admin-form input,
.admin-form select,
.admin-form textarea {
  width: 100%;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: white;
  color: var(--color-ink);
  font: inherit;
  padding: 0.8rem 0.9rem;
}

.admin-form textarea {
  min-height: 120px;
  resize: vertical;
}

.admin-options {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.6rem;
}

.student-table {
  display: grid;
  margin-top: 1.25rem;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
}

.student-table [role="row"] {
  display: grid;
  grid-template-columns: 1.1fr 1fr 0.8fr 0.6fr;
  gap: 1rem;
  padding: 0.85rem 1rem;
}

.student-table [role="row"]:first-child {
  background: #f2faf5;
  color: var(--color-accent-strong);
}

.student-table [role="row"] + [role="row"] {
  border-top: 1px solid var(--color-line);
}

.context-card,
.quiz-context {
  margin-top: 0;
}

.context-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.85rem;
  margin-top: 1.25rem;
}

.context-grid div {
  border-radius: var(--radius);
  background: #f2faf5;
  padding: 1rem;
}

.context-grid strong {
  color: var(--color-accent-strong);
}

.context-grid p {
  margin-top: 0.45rem;
  color: var(--color-muted);
}

.quiz-context {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(300px, 0.85fr);
  gap: 1rem;
}

.sample-question-list,
.admin-content-list {
  display: grid;
  gap: 0.75rem;
  margin: 1.25rem 0 0;
}

.sample-question-list {
  padding-left: 1.25rem;
}

.sample-question-list li {
  color: var(--color-muted);
  padding-left: 0.25rem;
}

.admin-content-list {
  padding: 0;
  list-style: none;
}

.admin-content-list li {
  display: grid;
  gap: 0.25rem;
  border-radius: var(--radius);
  background: #f2faf5;
  padding: 0.85rem 1rem;
}

.admin-content-list span {
  color: var(--color-muted);
  font-size: 0.9rem;
}

@media (max-width: 900px) {
  .hero,
  .split-section,
  .module-lab,
  .feature-board {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .machine-panel {
    min-height: 420px;
  }

  .role-grid,
  .feature-grid,
  .status-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .role-grid {
    grid-area: auto;
  }

  .split-section {
    grid-template-areas: none;
  }

  .split-section .section-kicker,
  .split-section .section-heading {
    grid-area: auto;
  }

  .split-section .section-heading h2 {
    max-width: 14ch;
  }

  .access-panel {
    grid-template-columns: 1fr;
  }

  .login-shell {
    grid-template-columns: 1fr;
    min-height: auto;
    border-radius: 24px;
  }

  .login-showcase {
    min-height: auto;
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  }

  .login-showcase-content {
    position: relative;
    min-height: 440px;
  }

  .login-panel {
    min-height: auto;
  }

  .login-back {
    position: static;
    align-self: flex-start;
    margin-bottom: 2.5rem;
  }

  .login-card {
    margin-block: 0;
  }

  .dashboard-page {
    grid-template-columns: 1fr;
  }

  .dashboard-sidebar {
    position: static;
    height: auto;
  }

  .dashboard-nav {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .dashboard-main {
    width: min(calc(100% - 2rem), 1120px);
  }

  .dashboard-grid,
  .lesson-layout,
  .admin-layout,
  .quiz-context {
    grid-template-columns: 1fr;
  }

  .app-stat-grid,
  .subtopic-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .lesson-menu {
    position: static;
  }

  .quiz-grid,
  .admin-summary,
  .context-grid,
  .quiz-overview,
  .module-resource-grid,
  .chapter-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .header-actions {
    display: none;
  }

  .mobile-only {
    display: block;
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: absolute;
    top: 72px;
    right: var(--space-page);
    left: var(--space-page);
    transform: none;
    display: none;
    flex-direction: column;
    align-items: stretch;
    border: 1px solid var(--color-line);
    border-radius: var(--radius);
    background: var(--color-panel);
    padding: 0.5rem;
    box-shadow: var(--shadow-panel);
  }

  .site-header.is-open .site-nav {
    display: flex;
  }

  h1 {
    font-size: 2.55rem;
  }

  .machine-panel {
    min-height: 330px;
  }

  .role-grid,
  .feature-grid {
    grid-template-columns: 1fr;
  }

  .status-grid {
    position: static;
    padding: 0.75rem;
  }

  .access-panel .access-actions {
    padding: 0;
    border: 0;
    background: transparent;
  }

  .chatbot-widget {
    right: 0.75rem;
    bottom: 4.75rem;
    width: calc(100vw - 1.5rem);
  }

  .chatbot-toggle {
    right: 0.75rem;
    bottom: 0.75rem;
  }

  .login-showcase {
    min-height: auto;
  }

  .login-showcase-content {
    min-height: 390px;
    padding: 1.5rem;
  }

  .login-showcase-copy h1 {
    font-size: 2.65rem;
  }

  .login-stats {
    grid-template-columns: 1fr;
  }

  .login-panel {
    padding: 1.25rem;
  }

  .dashboard-topbar,
  .dashboard-card-head {
    align-items: start;
    flex-direction: column;
  }

  .dashboard-nav,
  .dashboard-stats,
  .subtopic-grid,
  .context-grid,
  .quiz-overview,
  .module-resource-grid,
  .chapter-grid,
  .admin-actions,
  .lesson-grid,
  .admin-options,
  .student-table [role="row"] {
    grid-template-columns: 1fr;
  }

  .chapter-title-row {
    flex-direction: column;
  }
}