:root {
  --ink: #102033;
  --muted: #5c7084;
  --line: #d9e2ea;
  --paper: #f4f7fb;
  --white: #ffffff;
  --blue: #173f5f;
  --blue-2: #226b9d;
  --green: #1f7a4d;
  --green-2: #48a86b;
  --gold: #b88718;
  --plum: #4c1d4f;
  --red: #b42318;
  --red-pale: #fff0ed;
  --gold-pale: #fff8e5;
  --blue-pale: #e8f3fb;
  --green-pale: #eaf7ef;
  --shadow: 0 14px 34px rgba(16, 32, 51, 0.11);
  --radius: 8px;
  --font: "Segoe UI", Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  color: var(--ink);
  background: var(--paper);
}

body.exam-active {
  user-select: none;
}

button, input, select {
  font: inherit;
}

button {
  cursor: pointer;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

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

h1, h2, h3, h4, p {
  margin-top: 0;
}

p {
  color: var(--muted);
  line-height: 1.65;
}

.hidden, .view {
  display: none !important;
}

.view.is-active {
  display: block !important;
}

.skip-link {
  position: fixed;
  left: 1rem;
  top: -5rem;
  z-index: 1000;
  background: var(--blue);
  color: white;
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
}

.skip-link:focus {
  top: 1rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem clamp(1rem, 3vw, 2rem);
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 3px solid var(--gold);
  box-shadow: 0 3px 16px rgba(16, 32, 51, 0.08);
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  min-width: 0;
}

.brand-logo {
  width: 54px;
  height: 54px;
  object-fit: contain;
  flex: 0 0 auto;
}

.brand-logo-secondary {
  width: 48px;
  height: 48px;
}

.brand-portrait {
  width: 58px;
  height: 58px;
  object-fit: contain;
  object-position: center;
  border: 2px solid var(--gold);
  border-radius: 50%;
  background: white;
  flex: 0 0 auto;
}

.brand-copy {
  min-width: 0;
}

.brand-lockup h1 {
  margin: 0;
  color: var(--blue);
  font-size: clamp(1rem, 2vw, 1.25rem);
  line-height: 1.1;
}

.motto {
  margin: 0;
  font-size: 0.78rem;
}

.eyebrow {
  margin: 0 0 0.35rem;
  color: var(--gold);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.status-pill, .timer-pill, .tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 30px;
  border-radius: 999px;
  padding: 0.25rem 0.72rem;
  font-size: 0.82rem;
  font-weight: 800;
  background: var(--blue-pale);
  color: var(--blue);
  border: 1px solid rgba(23, 63, 95, 0.12);
}

.timer-pill {
  background: var(--red);
  color: white;
  font-size: 1rem;
  letter-spacing: 0.04em;
}

.top-nav {
  display: flex;
  gap: 0.25rem;
  overflow-x: auto;
  padding: 0.35rem clamp(0.75rem, 3vw, 2rem);
  background: var(--blue);
}

.nav-button {
  border: 0;
  border-bottom: 3px solid transparent;
  border-radius: 0;
  padding: 0.78rem 1rem;
  background: transparent;
  color: rgba(255, 255, 255, 0.78);
  font-weight: 800;
  white-space: nowrap;
}

.nav-button:hover, .nav-button.is-active {
  color: white;
  background: rgba(255, 255, 255, 0.08);
  border-bottom-color: var(--gold);
}

.home-hero {
  position: relative;
  min-height: min(68vh, 620px);
  overflow: hidden;
  display: grid;
  align-items: end;
  isolation: isolate;
}

.hero-slideshow,
.home-hero-image,
.home-hero-shade {
  position: absolute;
  inset: 0;
}

.hero-slideshow {
  z-index: -3;
  overflow: hidden;
}

.home-hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  z-index: -2;
}

.hero-slide {
  opacity: 0;
  animation: heroFade 24s infinite;
}

.slide-one { animation-delay: 0s; }
.slide-two { animation-delay: 6s; }
.slide-three { animation-delay: 12s; }
.slide-four { animation-delay: 18s; object-fit: contain; background: #102033; }

@keyframes heroFade {
  0%, 100% { opacity: 0; transform: scale(1); }
  8%, 25% { opacity: 1; transform: scale(1.035); }
  33% { opacity: 0; transform: scale(1.055); }
}

.hero-emblems {
  position: absolute;
  right: clamp(1rem, 4vw, 3rem);
  top: clamp(1rem, 4vw, 3rem);
  z-index: 1;
  display: flex;
  gap: 0.65rem;
}

.hero-emblems img {
  width: clamp(52px, 8vw, 86px);
  height: clamp(52px, 8vw, 86px);
  object-fit: contain;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.9);
  border: 2px solid rgba(255, 255, 255, 0.72);
  padding: 0.35rem;
}

.home-hero-shade {
  z-index: -1;
  background:
    linear-gradient(90deg, rgba(10, 31, 52, 0.92) 0%, rgba(10, 31, 52, 0.66) 46%, rgba(10, 31, 52, 0.18) 100%),
    linear-gradient(0deg, rgba(16, 32, 51, 0.28), rgba(16, 32, 51, 0.04));
}

.home-hero-content {
  width: min(760px, calc(100% - 2rem));
  margin: 0 auto;
  padding: clamp(2rem, 7vw, 5rem) 0 clamp(2rem, 5vw, 4rem);
}

.home-hero-content h2 {
  max-width: 720px;
  color: white;
  font-size: clamp(2rem, 5vw, 4rem);
  line-height: 1.04;
  margin-bottom: 1rem;
}

.home-hero-content p {
  max-width: 680px;
  color: rgba(255, 255, 255, 0.88);
  font-size: clamp(1rem, 2vw, 1.18rem);
}

.on-hero {
  background: rgba(255, 255, 255, 0.9);
  border-color: rgba(255, 255, 255, 0.34);
  color: var(--blue);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(300px, 0.95fr);
  gap: clamp(1rem, 4vw, 2rem);
  align-items: center;
  padding: clamp(1rem, 4vw, 2rem);
  max-width: 1400px;
  margin: 0 auto;
}

.hero-copy h2 {
  font-size: clamp(1.7rem, 4vw, 3.2rem);
  line-height: 1.05;
  color: var(--blue);
}

.hero-media img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-actions, .result-actions, .question-actions, .tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  align-items: center;
}

.primary-action, .small-action, .ghost-action, .danger-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 43px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  padding: 0.68rem 1rem;
  font-weight: 800;
  text-decoration: none;
}

.primary-action {
  width: 100%;
  background: var(--blue);
  color: white;
}

.small-action {
  background: var(--blue-2);
  color: white;
}

.ghost-action {
  background: white;
  color: var(--blue);
  border-color: var(--line);
}

.danger-action {
  background: var(--red-pale);
  color: var(--red);
  border-color: rgba(180, 35, 24, 0.25);
}

.fit {
  width: auto;
}

.portal-band {
  padding: clamp(1rem, 4vw, 2rem);
  max-width: 1400px;
  margin: 0 auto;
}

.split-band {
  display: grid;
  gap: 1rem;
}

.principal-desk {
  display: grid;
  grid-template-columns: minmax(220px, 320px) minmax(0, 1fr);
  gap: 1rem;
  align-items: stretch;
}

.principal-photo {
  width: 100%;
  min-height: 100%;
  aspect-ratio: 4 / 5;
  object-fit: contain;
  object-position: center;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: white;
}

.desk-note {
  border-left: 5px solid var(--gold);
  background: white;
  border-radius: var(--radius);
  border-top: 1px solid var(--line);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: clamp(1rem, 3vw, 1.5rem);
}

.desk-note h3 {
  color: var(--blue);
  font-size: clamp(1.35rem, 3vw, 2rem);
}

.desk-note .signature {
  margin-top: 1rem;
  color: var(--ink);
  font-weight: 900;
}

.student-access {
  display: grid;
  grid-template-columns: minmax(280px, 420px) minmax(0, 1fr);
  gap: 1rem;
  align-items: start;
}

.student-form,
.subject-preview,
.proprietor-panel {
  background: white;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem;
  box-shadow: 0 6px 18px rgba(16, 32, 51, 0.06);
}

.student-form {
  display: grid;
  gap: 0.85rem;
}

.subject-preview {
  display: grid;
  gap: 0.8rem;
}

.subject-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.8rem;
}

.class-subject-grid {
  display: grid;
  gap: 0.9rem;
}

.class-subject-panel {
  display: grid;
  gap: 0.75rem;
  padding: 0.85rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
}

.class-subject-panel.is-active {
  border-color: rgba(34, 107, 157, 0.45);
  background: var(--blue-pale);
}

.class-subject-heading {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  align-items: center;
}

.class-subject-heading strong {
  color: var(--blue);
}

.class-subject-heading span {
  font-weight: 900;
  color: var(--gold);
}

.subject-card-link {
  display: grid;
  grid-template-columns: 108px 1fr;
  gap: 0.9rem;
  align-items: center;
  text-decoration: none;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.65rem;
}

.subject-card-link img {
  width: 108px;
  height: 78px;
  border-radius: 6px;
  object-fit: contain;
  object-position: center;
  background: white;
}

.portal-guide {
  display: grid;
  gap: 0.85rem;
}

.guide-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.8rem;
}

.guide-card {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 0.75rem;
  align-items: center;
  background: white;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.9rem;
}

.guide-card strong {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--blue);
  color: white;
  font-size: 1.15rem;
}

.guide-card span {
  color: var(--ink);
  font-weight: 800;
  line-height: 1.4;
}

.cbt-hint,
.sample-question {
  margin-bottom: 0.45rem;
  border-radius: 6px;
  padding: 0.65rem 0.75rem;
  background: var(--blue-pale);
  color: var(--ink);
  font-size: 0.92rem;
}

.sample-question {
  background: var(--gold-pale);
}

.subject-card-link strong {
  display: block;
  color: var(--blue);
  line-height: 1.2;
}

.subject-card-link span {
  display: block;
  margin-top: 0.2rem;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.35;
}

.proprietor-panel {
  display: grid;
  grid-template-columns: minmax(180px, 280px) minmax(0, 1fr);
  gap: 1rem;
  align-items: center;
  background: linear-gradient(135deg, white, var(--gold-pale));
}

.proprietor-panel img {
  width: 100%;
  aspect-ratio: 1;
  border-radius: var(--radius);
  object-fit: contain;
  object-position: center;
  border: 1px solid rgba(184, 135, 24, 0.28);
  background: white;
}

.compact-grid {
  padding-left: 0;
  padding-right: 0;
}

.panel-grid, .team-grid, .lesson-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 clamp(1rem, 4vw, 2rem) clamp(1rem, 4vw, 2rem);
}

.info-panel, .card, .team-card, .lesson-card, .question-card, .result-card, .stat-card {
  background: white;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 6px 18px rgba(16, 32, 51, 0.06);
}

.info-panel, .card, .team-card, .lesson-card, .question-card, .result-card, .stat-card {
  padding: 1rem;
}

.team-card img, .lesson-card img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: contain;
  border-radius: 6px;
  margin-bottom: 0.85rem;
  background: var(--paper);
}

.team-card img {
  object-fit: contain;
  object-position: center;
}

.plain-list, .check-list {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--muted);
  line-height: 1.8;
}

.hierarchy-band {
  padding-top: 1rem;
}

.section-title {
  max-width: 1400px;
  margin: 0 auto;
  padding: clamp(1rem, 3vw, 1.5rem) clamp(1rem, 4vw, 2rem) 1rem;
}

.section-title h2, .section-title h3 {
  margin-bottom: 0.35rem;
  color: var(--blue);
}

.compact {
  padding-left: 0;
  padding-right: 0;
}

.workspace {
  display: grid;
  grid-template-columns: 285px minmax(0, 1fr);
  gap: 1rem;
  max-width: 1400px;
  margin: 0 auto;
  padding: clamp(1rem, 3vw, 1.5rem);
}

.subject-rail {
  position: sticky;
  top: 130px;
  align-self: start;
  background: white;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem;
}

.subject-rail h3 {
  color: var(--blue);
  margin-bottom: 0.35rem;
}

.subject-list {
  display: grid;
  gap: 0.7rem;
}

.class-tabs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.35rem;
}

.class-tabs button {
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: white;
  color: var(--blue);
  font-weight: 900;
}

.class-tabs button.is-active {
  background: var(--blue);
  border-color: var(--blue);
  color: white;
}

.subject-button {
  display: grid;
  grid-template-columns: 58px 1fr;
  align-items: center;
  gap: 0.7rem;
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.55rem;
  background: white;
  color: var(--ink);
  text-align: left;
  font-weight: 800;
}

.subject-button img {
  width: 58px;
  height: 48px;
  object-fit: contain;
  object-position: center;
  background: white;
  border-radius: 6px;
}

.subject-button.is-active {
  border-color: var(--blue-2);
  background: var(--blue-pale);
}

.workspace-main {
  display: grid;
  gap: 1rem;
}

.subject-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.55fr);
  gap: 1rem;
  align-items: center;
  padding: 1rem;
  border-radius: var(--radius);
  color: white;
  background: var(--blue);
}

.subject-green {
  background: var(--green);
}

.subject-hero h2, .subject-hero p {
  color: white;
}

.subject-hero img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: contain;
  object-position: center;
  border-radius: 6px;
  background: white;
}

.subject-hero .tag {
  background: rgba(255, 255, 255, 0.18);
  color: white;
  border-color: rgba(255, 255, 255, 0.2);
}

.term-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.term-tabs button {
  border: 1px solid var(--line);
  background: white;
  border-radius: var(--radius);
  padding: 0.65rem 0.9rem;
  font-weight: 800;
}

.term-tabs button.is-active {
  color: white;
  background: var(--blue);
  border-color: var(--blue);
}

.term-panel, .diagram-drill, .source-pages-panel {
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem;
}

.source-link-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.75rem;
}

.source-link {
  display: grid;
  gap: 0.3rem;
  min-height: 82px;
  align-content: center;
  padding: 0.85rem;
  border: 1px solid var(--line);
  border-left: 5px solid var(--blue-2);
  border-radius: var(--radius);
  background: white;
  color: var(--ink);
  text-decoration: none;
}

.source-link span {
  color: var(--blue);
  font-weight: 900;
  line-height: 1.25;
}

.source-link strong {
  color: var(--muted);
  font-size: 0.78rem;
  text-transform: uppercase;
}

.source-practice {
  border-left-color: var(--green);
}

.source-external {
  border-left-color: var(--plum);
}

.source-exam {
  border-left-color: var(--red);
}

.source-term {
  border-left-color: var(--gold);
}

.practice-shell, .exam-gate, .exam-room, .result-view, .officer-console {
  max-width: 1400px;
  margin: 0 auto;
  padding: clamp(1rem, 3vw, 1.5rem);
}

.practice-layout, .exam-layout, .gate-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 1rem;
  align-items: start;
}

.question-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.question-diagram {
  width: 100%;
  max-height: min(52vh, 560px);
  object-fit: contain;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: white;
  margin-bottom: 1rem;
}

.section-b-answer {
  margin-top: 1rem;
}

.section-instruction {
  margin-bottom: 0.9rem;
  border-left: 5px solid var(--gold);
  border-radius: var(--radius);
  padding: 0.75rem 0.9rem;
  background: var(--gold-pale);
  color: var(--ink);
  font-weight: 800;
}

.section-b-answer textarea {
  width: 100%;
  min-height: 240px;
  resize: vertical;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.9rem;
  color: var(--ink);
  background: white;
  font: inherit;
  line-height: 1.6;
}

.option-list {
  display: grid;
  gap: 0.65rem;
}

.option-button, .option-label {
  display: flex;
  align-items: flex-start;
  gap: 0.55rem;
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.85rem;
  background: white;
  color: var(--ink);
  text-align: left;
  line-height: 1.45;
}

.option-label input {
  width: auto;
  margin-top: 0.25rem;
}

.option-button.is-selected, .option-label.is-selected {
  border-color: var(--blue-2);
  background: var(--blue-pale);
}

.question-actions {
  border-top: 1px solid var(--line);
  margin-top: 1rem;
  padding-top: 1rem;
}

.question-nav {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.4rem;
  padding: 0.75rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: white;
}

.question-nav button {
  aspect-ratio: 1;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: white;
  font-weight: 900;
}

.question-nav button.is-current {
  background: var(--blue);
  border-color: var(--blue);
  color: white;
}

.question-nav button.is-answered {
  background: var(--green-pale);
  border-color: rgba(31, 122, 77, 0.3);
  color: var(--green);
}

.question-nav button.is-flagged {
  background: var(--gold-pale);
  border-color: rgba(184, 135, 24, 0.45);
  color: #76540d;
}

.exam-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem;
  background: var(--blue);
  color: white;
  border-radius: var(--radius) var(--radius) 0 0;
}

.exam-toolbar h2, .exam-toolbar p {
  color: white;
  margin-bottom: 0;
}

.exam-toolbar-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  justify-content: flex-end;
}

.exam-side {
  display: grid;
  gap: 1rem;
}

.camera-panel, .calculator {
  padding: 1rem;
  border-radius: var(--radius);
  background: white;
  border: 1px solid var(--line);
}

.jamb-calculator {
  display: grid;
  gap: 0.65rem;
}

.calculator-display {
  min-height: 48px;
  text-align: right;
  font-size: 1.25rem;
  font-weight: 900;
  letter-spacing: 0;
  background: #f8fafc;
}

.calculator-keys {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.4rem;
}

.calculator-keys button {
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: white;
  color: var(--ink);
  font-weight: 900;
}

.calculator-keys button:hover {
  border-color: var(--blue-2);
  background: var(--blue-pale);
}

.calculator-keys button.is-equals {
  background: var(--green);
  border-color: var(--green);
  color: white;
}

.camera-panel video, .camera-off {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 6px;
  background: #111;
  color: white;
  display: grid;
  place-items: center;
}

label {
  display: grid;
  gap: 0.35rem;
  color: var(--ink);
  font-weight: 800;
}

input, select {
  width: 100%;
  min-height: 43px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.7rem 0.8rem;
  background: white;
  color: var(--ink);
}

.exam-form {
  display: grid;
  gap: 0.85rem;
}

.server-status {
  border-radius: var(--radius);
  padding: 0.75rem;
  font-weight: 800;
}

.server-status.ok {
  background: var(--green-pale);
  color: var(--green);
}

.server-status.bad, .form-message.is-error {
  background: var(--red-pale);
  color: var(--red);
}

.form-message {
  min-height: 1.4rem;
  margin: 0;
  font-weight: 800;
}

.loading-panel, .malpractice-panel {
  background: white;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.5rem;
  font-weight: 800;
}

.malpractice-panel {
  color: var(--red);
  background: var(--red-pale);
  border-color: rgba(180, 35, 24, 0.25);
}

.result-header {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 1rem;
  align-items: center;
  padding: 1rem;
  color: white;
  background: var(--blue);
  border-radius: var(--radius) var(--radius) 0 0;
}

.result-header img {
  width: 74px;
  height: 74px;
  object-fit: contain;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 6px;
}

.result-header h2, .result-header p {
  color: white;
  margin-bottom: 0.2rem;
}

.score-box {
  text-align: right;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.14);
  padding: 0.8rem 1rem;
}

.score-box strong {
  display: block;
  color: #ffd36c;
  font-size: 2rem;
  line-height: 1;
}

.result-actions {
  padding: 1rem;
  background: white;
  border-left: 1px solid var(--line);
  border-right: 1px solid var(--line);
}

.review-list {
  display: grid;
  gap: 0.8rem;
  padding: 1rem;
  background: white;
  border: 1px solid var(--line);
  border-top: 0;
  border-radius: 0 0 var(--radius) var(--radius);
}

.review-item {
  border: 1px solid var(--line);
  border-left: 5px solid var(--blue-2);
  border-radius: var(--radius);
  padding: 1rem;
}

.review-item.is-correct {
  border-left-color: var(--green);
}

.review-item.is-wrong {
  border-left-color: var(--red);
}

.review-diagram {
  width: 100%;
  max-height: 260px;
  object-fit: contain;
  margin-bottom: 0.75rem;
  border-radius: 6px;
  border: 1px solid var(--line);
}

.admin-grid, .stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.officer-login {
  max-width: 540px;
  display: grid;
  gap: 0.85rem;
}

.officer-console-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1rem;
}

.admin-panel {
  display: grid;
  gap: 1rem;
  background: white;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem;
}

.inline-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.75rem;
}

.stat-card h3 {
  margin-bottom: 0.25rem;
  color: var(--blue);
  font-size: 2rem;
}

.site-footer {
  margin-top: 2rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem clamp(1rem, 4vw, 2rem);
  background: linear-gradient(135deg, var(--blue), var(--plum));
  color: white;
}

.footer-lockup,
.footer-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  align-items: center;
}

.footer-lockup {
  max-width: 620px;
}

.footer-lockup img {
  width: 46px;
  height: 46px;
  object-fit: contain;
}

.footer-lockup div {
  display: grid;
  gap: 0.15rem;
}

.site-footer span {
  color: rgba(255, 255, 255, 0.76);
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 1rem;
  z-index: 100;
  transform: translate(-50%, 140%);
  max-width: min(560px, calc(100vw - 2rem));
  background: var(--blue);
  color: white;
  padding: 0.8rem 1rem;
  border-radius: var(--radius);
  font-weight: 800;
  box-shadow: var(--shadow);
  transition: transform 180ms ease;
}

.toast.is-visible {
  transform: translate(-50%, 0);
}

@media print {
  .site-header, .top-nav, .site-footer, .toast, .result-actions {
    display: none !important;
  }

  body {
    background: white;
  }

  .result-view {
    max-width: none;
    padding: 0;
  }
}

@media (max-width: 980px) {
  .hero, .workspace, .practice-layout, .exam-layout, .gate-grid, .subject-hero, .principal-desk, .student-access, .proprietor-panel, .officer-console-grid {
    grid-template-columns: 1fr;
  }

  .subject-rail {
    position: static;
  }

  .subject-list {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  }

  .question-nav {
    grid-template-columns: repeat(8, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .header-actions {
    width: 100%;
    justify-content: flex-start;
  }

  .brand-lockup h1 {
    font-size: 1rem;
  }

  .brand-lockup {
    align-items: center;
    gap: 0.55rem;
  }

  .brand-logo {
    width: 42px;
    height: 42px;
  }

  .brand-logo-secondary {
    display: none;
  }

  .brand-portrait {
    width: 44px;
    height: 44px;
  }

  .motto {
    display: none;
  }

  .home-hero {
    min-height: 72vh;
  }

  .home-hero-shade {
    background: linear-gradient(90deg, rgba(10, 31, 52, 0.93), rgba(10, 31, 52, 0.58));
  }

  .question-nav {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .result-header {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .result-header img {
    margin: 0 auto;
  }

  .score-box {
    text-align: center;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #edf4fb;
    --muted: #bfd0df;
    --line: #32495f;
    --paper: #0d1824;
    --white: #142335;
    --blue-pale: #153653;
    --green-pale: #123d2b;
    --gold-pale: #3b2c10;
  }

  .site-header,
  .student-form,
  .subject-preview,
  .class-subject-panel,
  .info-panel,
  .card,
  .team-card,
  .lesson-card,
  .question-card,
  .result-card,
  .stat-card,
  .admin-panel,
  .subject-rail,
  .term-panel,
  .source-pages-panel,
  .camera-panel,
  .calculator,
  .source-link,
  .class-tabs button,
  .section-b-answer textarea,
  .calculator-keys button {
    background: var(--white);
  }
}