:root {
  --ink: #1d2433;
  --muted: #657083;
  --line: #d8d3e6;
  --paper: #f8f5ef;
  --panel: #ffffff;
  --accent: #0d8a7a;
  --accent-dark: #075f59;
  --blue: #315fa8;
  --gold: #c58a22;
  --rose: #bd3867;
  --violet: #7047b8;
  --saffron: #e0a126;
  --danger: #b54d3b;
  --shadow: 0 24px 60px rgba(37, 45, 60, 0.11);
  --premium-gradient: linear-gradient(135deg, #0d766e 0%, #315fa8 42%, #7047b8 72%, #c58a22 100%);
  --exam-navy: #0a1628;
  --exam-navy-card: #14243b;
  --exam-saffron: #ff7a18;
  --exam-gold: #ffbc42;
  --exam-green: #1ca80a;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    linear-gradient(120deg, rgba(13, 138, 122, 0.13), transparent 28%),
    linear-gradient(240deg, rgba(189, 56, 103, 0.12), transparent 30%),
    linear-gradient(180deg, #fbf8f1 0%, #f4f1fb 48%, #eef8f6 100%);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

.app-shell {
  display: grid;
  min-height: 100vh;
  grid-template-columns: 272px 1fr;
  min-width: 0;
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 24px;
  color: #f8fbfb;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), transparent 28%),
    linear-gradient(160deg, #172a2e 0%, #18223f 54%, #3d2453 100%);
  min-width: 0;
  overflow-x: hidden;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 34px;
}

.brand-mark {
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(224, 161, 38, 0.9), rgba(189, 56, 103, 0.82)),
    rgba(255, 255, 255, 0.1);
  box-shadow: 0 12px 30px rgba(224, 161, 38, 0.22);
  font-weight: 800;
}

.brand span,
.timer span,
.metric-pill small {
  display: block;
  color: rgba(255, 255, 255, 0.68);
  font-size: 0.82rem;
}

nav {
  display: grid;
  gap: 8px;
}

.nav-item,
.ghost-button,
.primary-button {
  min-height: 42px;
  border-radius: 8px;
  border: 1px solid transparent;
  padding: 0 14px;
}

.nav-item {
  color: rgba(255, 255, 255, 0.78);
  background: transparent;
  text-align: left;
}

.nav-item.active,
.nav-item:hover {
  color: #fff;
  background: linear-gradient(90deg, rgba(13, 138, 122, 0.28), rgba(224, 161, 38, 0.18));
  border-color: rgba(255, 255, 255, 0.12);
}

main {
  min-width: 0;
  padding: 28px;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 24px;
  padding: 12px 0;
  background: rgba(248, 245, 239, 0.9);
  backdrop-filter: blur(14px);
}

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

h1 {
  margin-bottom: 0;
  font-size: clamp(1.65rem, 2vw, 2.4rem);
}

h2 {
  margin-bottom: 16px;
  font-size: 1.12rem;
}

.eyebrow {
  margin-bottom: 6px;
  color: var(--rose);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.exam-status {
  display: grid;
  min-width: 230px;
  border: 1px solid rgba(112, 71, 184, 0.24);
  border-radius: 8px;
  padding: 10px 14px;
  color: #1d2433;
  background:
    linear-gradient(135deg, rgba(13, 138, 122, 0.13), rgba(112, 71, 184, 0.12), rgba(224, 161, 38, 0.14)),
    #fff;
  box-shadow: 0 16px 38px rgba(49, 95, 168, 0.12);
}

.exam-status span,
.exam-status small {
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 800;
  text-transform: uppercase;
}

.exam-status strong {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: 1.75rem;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0;
  color: transparent;
  background: var(--premium-gradient);
  background-clip: text;
}

.exam-status.running {
  border-color: rgba(181, 77, 59, 0.38);
  background:
    linear-gradient(135deg, rgba(181, 77, 59, 0.12), rgba(47, 95, 152, 0.13)),
    #fff;
}

.metric-pill {
  position: relative;
  display: grid;
  grid-template-columns: auto auto;
  align-items: end;
  min-width: 146px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: 8px;
  padding: 11px 14px 12px;
  color: #fff;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.2), transparent 38%),
    linear-gradient(135deg, #0d766e 0%, #315fa8 48%, #bd3867 100%);
  box-shadow: 0 18px 40px rgba(49, 95, 168, 0.24);
}

.metric-pill::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.25), transparent);
  transform: translateX(-70%);
}

.metric-pill small {
  grid-column: 1 / -1;
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
}

.metric-pill span {
  position: relative;
  font-size: 2rem;
  font-weight: 800;
  line-height: 1;
}

.metric-pill b {
  position: relative;
  align-self: end;
  margin-left: 6px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.78rem;
  padding-bottom: 2px;
}

.view {
  display: none;
}

.view.active {
  display: block;
}

.dashboard-grid,
.workspace {
  display: grid;
  gap: 18px;
}

.dashboard-grid {
  grid-template-columns: minmax(0, 1.5fr) minmax(240px, 0.8fr) minmax(240px, 0.8fr);
}

.dashboard-hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(320px, 0.75fr);
  gap: 24px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  margin-bottom: 20px;
  padding: 34px;
  color: #eef5ff;
  background:
    radial-gradient(circle at 82% 16%, rgba(255, 122, 24, 0.24), transparent 28%),
    radial-gradient(circle at 12% 86%, rgba(28, 168, 10, 0.14), transparent 24%),
    linear-gradient(135deg, #0a1628 0%, #112240 56%, #20163f 100%);
  box-shadow: 0 26px 70px rgba(10, 22, 40, 0.28);
}

.dashboard-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(255, 122, 24, 0.16), transparent 28%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), transparent 40%);
  pointer-events: none;
}

.hero-copy,
.hero-scoreboard {
  position: relative;
}

.hero-tag,
.sec-badge,
.rank-chip {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  border: 1px solid rgba(255, 122, 24, 0.32);
  border-radius: 999px;
  padding: 4px 12px;
  color: var(--exam-gold);
  background: rgba(255, 122, 24, 0.12);
  font-size: 0.74rem;
  font-weight: 900;
  text-transform: uppercase;
}

.hero-copy h2 {
  max-width: 720px;
  margin: 14px 0 12px;
  color: #fff;
  font-size: clamp(2rem, 4vw, 4rem);
  line-height: 1.02;
}

.hero-copy p {
  max-width: 620px;
  color: #aebbd8;
  font-size: 1rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.hero-scoreboard {
  display: grid;
  gap: 12px;
}

.hero-scoreboard div {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 12px;
  padding: 16px;
  background: rgba(255, 255, 255, 0.055);
  backdrop-filter: blur(14px);
}

.hero-scoreboard small,
.hero-scoreboard span {
  color: #9aa8c8;
  font-size: 0.76rem;
  font-weight: 800;
  text-transform: uppercase;
}

.hero-scoreboard strong {
  grid-row: span 2;
  color: var(--exam-saffron);
  font-size: 2.4rem;
  line-height: 1;
}

.dashboard-command-grid {
  grid-template-columns: minmax(260px, 0.7fr) minmax(0, 1.2fr) minmax(260px, 0.8fr);
}

.workspace {
  grid-template-columns: minmax(0, 1.35fr) minmax(300px, 0.65fr);
}

.panel {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(216, 211, 230, 0.92);
  border-radius: 8px;
  padding: 20px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(255, 255, 255, 0.9)),
    var(--panel);
  box-shadow: var(--shadow);
}

#dashboard .panel {
  border-color: rgba(10, 22, 40, 0.1);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(246, 249, 255, 0.92)),
    #fff;
}

.panel::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 4px;
  background: var(--premium-gradient);
  opacity: 0.75;
}

.priority-panel {
  background:
    linear-gradient(135deg, rgba(13, 138, 122, 0.1), rgba(224, 161, 38, 0.08), rgba(255, 255, 255, 0.88)),
    #fff;
}

.readiness-panel {
  color: #eaf1ff;
  background:
    radial-gradient(circle at top right, rgba(255, 122, 24, 0.24), transparent 34%),
    linear-gradient(145deg, #112240, #162942) !important;
}

.readiness-panel .eyebrow,
.readiness-panel h2,
.readiness-panel .muted {
  color: inherit;
}

.readiness-orbit {
  display: grid;
  width: 152px;
  height: 152px;
  place-items: center;
  margin: 8px auto 18px;
  border: 10px solid rgba(255, 255, 255, 0.07);
  border-top-color: var(--exam-saffron);
  border-right-color: var(--exam-gold);
  border-radius: 50%;
  text-align: center;
}

.readiness-orbit strong {
  color: var(--exam-gold);
  font-size: 2.1rem;
  line-height: 1;
}

.readiness-orbit span {
  max-width: 96px;
  color: #9aa8c8;
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
}

.mission-list {
  display: grid;
  gap: 10px;
}

.mission-list div {
  border-left: 3px solid var(--exam-saffron);
  padding-left: 12px;
}

.mission-list strong,
.mission-list span {
  display: block;
}

.mission-list span {
  color: var(--muted);
  font-size: 0.88rem;
}

.panel-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.study-loop {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.study-loop div,
.stat-list div,
.syllabus-item,
.question-card,
.source-item,
.history-item,
.accuracy-item {
  border: 1px solid rgba(216, 211, 230, 0.88);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.95), rgba(248, 250, 255, 0.92)),
    #fbfcfd;
}

.study-loop div {
  padding: 14px;
  box-shadow: 0 10px 26px rgba(49, 95, 168, 0.07);
}

.study-loop span {
  display: grid;
  width: 30px;
  height: 30px;
  place-items: center;
  margin-bottom: 10px;
  border-radius: 50%;
  color: #fff;
  background: var(--premium-gradient);
  box-shadow: 0 8px 18px rgba(112, 71, 184, 0.2);
  font-weight: 800;
}

.study-loop p,
.muted {
  color: var(--muted);
}

.stat-list {
  display: grid;
  gap: 10px;
}

.subject-command-panel {
  margin-top: 18px;
}

.subject-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 14px;
}

.subject-card {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(10, 22, 40, 0.09);
  border-radius: 12px;
  padding: 18px;
  background:
    radial-gradient(circle at 88% 12%, color-mix(in srgb, var(--subject-accent) 22%, transparent), transparent 32%),
    linear-gradient(180deg, #ffffff, #f7f9ff);
  box-shadow: 0 16px 36px rgba(10, 22, 40, 0.08);
}

.subject-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: var(--subject-accent);
}

.subject-spark {
  display: block;
  width: 34px;
  height: 34px;
  margin-bottom: 12px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--subject-accent), rgba(255, 255, 255, 0.18));
  box-shadow: 0 10px 22px color-mix(in srgb, var(--subject-accent) 22%, transparent);
}

.subject-card strong {
  display: block;
  color: var(--ink);
  font-size: 1rem;
}

.subject-card p {
  min-height: 42px;
  margin: 4px 0 12px;
  color: var(--muted);
  font-size: 0.84rem;
}

.subject-meta {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
}

.subject-meta b {
  color: var(--subject-accent);
}

.subject-bar {
  height: 6px;
  overflow: hidden;
  border-radius: 999px;
  margin-top: 10px;
  background: rgba(10, 22, 40, 0.08);
}

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

.stat-list div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px;
  background:
    linear-gradient(90deg, rgba(13, 138, 122, 0.09), rgba(255, 255, 255, 0.94) 46%, rgba(224, 161, 38, 0.1)),
    #fff;
}

.stat-list strong {
  color: transparent;
  background: var(--premium-gradient);
  background-clip: text;
  font-size: 1.75rem;
  font-weight: 900;
}

.readiness-meter {
  height: 14px;
  overflow: hidden;
  border-radius: 999px;
  background: #e8ebef;
}

#readiness-fill {
  width: 0%;
  height: 100%;
  background: var(--premium-gradient);
  transition: width 0.3s ease;
}

.syllabus-panel {
  margin-top: 18px;
}

select {
  min-height: 40px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 12px;
  background: #fff;
  color: var(--ink);
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.syllabus-list,
.source-list,
.history-list,
.accuracy-list {
  display: grid;
  gap: 12px;
}

.syllabus-item,
.source-item,
.history-item,
.accuracy-item {
  padding: 14px;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

.tag {
  border-radius: 999px;
  padding: 4px 9px;
  color: #41215f;
  background: linear-gradient(135deg, rgba(13, 138, 122, 0.14), rgba(224, 161, 38, 0.18));
  font-size: 0.78rem;
  font-weight: 700;
}

.question-card {
  padding: 18px;
}

.option {
  display: flex;
  gap: 10px;
  width: 100%;
  margin-top: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  background: #fff;
  text-align: left;
}

.option.selected {
  border-color: var(--violet);
  background: linear-gradient(90deg, rgba(49, 95, 168, 0.11), rgba(112, 71, 184, 0.1));
}

.option.correct {
  border-color: var(--accent);
  background: #edf8f3;
}

.option.wrong {
  border-color: var(--danger);
  background: #fff1ee;
}

.question-footer,
.answer-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 16px;
}

.primary-button {
  color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--blue), var(--violet));
  box-shadow: 0 12px 24px rgba(49, 95, 168, 0.18);
}

.primary-button:hover {
  background: linear-gradient(135deg, var(--accent-dark), var(--blue), var(--rose));
}

.ghost-button {
  border-color: rgba(112, 71, 184, 0.22);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(249, 246, 255, 0.92));
  color: var(--ink);
}

.ghost-button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

.timer {
  display: grid;
  gap: 6px;
  margin: 14px 0;
  color: var(--ink);
}

.timer strong {
  font-size: 2.2rem;
  color: transparent;
  background: var(--premium-gradient);
  background-clip: text;
}

.timer span {
  color: var(--muted);
}

.mock-result,
.feedback-box,
.wrong-review {
  margin-top: 14px;
  color: var(--muted);
}

.wrong-review {
  display: grid;
  gap: 12px;
}

.wrong-item {
  border: 1px solid rgba(224, 161, 38, 0.34);
  border-radius: 8px;
  padding: 12px;
  background: linear-gradient(135deg, rgba(255, 250, 247, 0.95), rgba(255, 246, 252, 0.9));
}

.wrong-item strong {
  color: var(--ink);
}

.wrong-item p {
  margin-bottom: 8px;
}

.exam-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.mains-prompt {
  border-left: 4px solid var(--gold);
  padding: 4px 0 4px 14px;
  background: linear-gradient(90deg, rgba(224, 161, 38, 0.1), transparent 42%);
}

textarea {
  width: 100%;
  min-height: 260px;
  resize: vertical;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  color: var(--ink);
  line-height: 1.55;
}

.feedback-box {
  border: 1px solid rgba(13, 138, 122, 0.22);
  border-radius: 8px;
  padding: 14px;
  background: linear-gradient(135deg, rgba(13, 138, 122, 0.08), rgba(255, 255, 255, 0.94));
}

.model-answer {
  color: var(--muted);
  line-height: 1.55;
}

.source-item a {
  color: var(--blue);
  font-weight: 800;
}

.previous-note {
  margin-bottom: 16px;
}

.previous-paper-list,
.previous-question-list {
  display: grid;
  gap: 12px;
}

.previous-paper-list {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.previous-card {
  display: grid;
  gap: 16px;
  border: 1px solid rgba(10, 22, 40, 0.1);
  border-radius: 12px;
  padding: 18px;
  background:
    radial-gradient(circle at top right, rgba(255, 122, 24, 0.12), transparent 32%),
    linear-gradient(180deg, #fff, #f7f9ff);
  box-shadow: 0 14px 34px rgba(10, 22, 40, 0.08);
}

.previous-card h3,
.previous-question h3 {
  margin: 0 0 8px;
  color: var(--ink);
  font-size: 1rem;
}

.previous-file {
  margin-bottom: 0;
  color: var(--blue);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: 0.78rem;
  word-break: break-word;
}

.previous-path {
  margin: 6px 0 0;
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: 0.68rem;
  word-break: break-word;
}

.previous-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.previous-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  text-decoration: none;
}

.previous-status {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  font-size: 0.82rem;
}

.previous-question-list {
  margin-top: 16px;
}

.previous-question {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  background: #fff;
}

.learning-hero {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  margin-bottom: 18px;
  padding: 30px;
  color: #eef5ff;
  background:
    radial-gradient(circle at 84% 18%, rgba(255, 122, 24, 0.22), transparent 28%),
    linear-gradient(135deg, #0a1628 0%, #12284c 58%, #3a2051 100%);
  box-shadow: 0 26px 70px rgba(10, 22, 40, 0.22);
}

.learning-hero h2 {
  max-width: 760px;
  margin: 12px 0;
  color: #fff;
  font-size: clamp(1.8rem, 3vw, 3.2rem);
  line-height: 1.05;
}

.learning-hero p {
  max-width: 720px;
  color: #aebbd8;
}

.learning-switcher {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

.learning-tab {
  min-height: 40px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  padding: 0 16px;
  color: #dce6ff;
  background: rgba(255, 255, 255, 0.08);
  font-weight: 900;
}

.learning-tab.active {
  color: #17120b;
  background: linear-gradient(135deg, var(--exam-saffron), var(--exam-gold));
}

.learning-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
  gap: 18px;
}

.learning-frame,
.learning-list,
.sample-answer-grid,
.video-link-grid {
  display: grid;
  gap: 12px;
}

.learning-frame div,
.learning-list div,
.sample-answer {
  border: 1px solid rgba(10, 22, 40, 0.1);
  border-radius: 10px;
  padding: 14px;
  background: linear-gradient(180deg, #fff, #f8faff);
}

.learning-frame div {
  display: flex;
  gap: 12px;
}

.learning-frame span {
  display: grid;
  width: 30px;
  height: 30px;
  flex: 0 0 auto;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  background: var(--premium-gradient);
  font-weight: 900;
}

.learning-frame p,
.learning-list p,
.sample-answer p {
  margin-bottom: 0;
  color: var(--muted);
}

.learning-samples,
.learning-video-panel {
  margin-top: 18px;
}

.sample-answer-grid {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.sample-answer h3 {
  margin-top: 0;
  font-size: 1rem;
}

.video-link-grid {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.video-link-grid a {
  border: 1px solid rgba(255, 122, 24, 0.28);
  border-radius: 10px;
  padding: 14px;
  color: var(--blue);
  background: linear-gradient(135deg, rgba(255, 122, 24, 0.08), rgba(255, 255, 255, 0.96));
  font-weight: 900;
  text-decoration: none;
}

.video-link-grid a:hover {
  border-color: var(--exam-saffron);
  color: var(--rose);
}

.progress-bar {
  height: 8px;
  overflow: hidden;
  border-radius: 999px;
  background: #e8ebef;
}

.progress-bar div {
  height: 100%;
  background: var(--premium-gradient);
}

@media (max-width: 980px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

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

  nav {
    display: flex;
    overflow-x: auto;
    max-width: 100%;
  }

  .nav-item {
    flex: 0 0 auto;
    min-width: 120px;
  }

  .dashboard-grid,
  .dashboard-hero,
  .dashboard-command-grid,
  .learning-grid,
  .workspace,
  .study-loop {
    grid-template-columns: 1fr;
  }

  .dashboard-hero,
  .learning-hero {
    padding: 24px;
  }

  .learning-hero {
    align-items: stretch;
    flex-direction: column;
  }
}

@media (max-width: 640px) {
  main,
  .sidebar {
    padding: 18px;
  }

  .topbar,
  .panel-header,
  .question-footer,
  .answer-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .topbar-actions,
  .filters,
  .exam-controls,
  .learning-switcher {
    width: 100%;
  }

  .topbar-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .metric-pill,
  .exam-status,
  .learning-tab,
  .ghost-button,
  .primary-button,
  select {
    width: 100%;
  }
}