:root {
  color-scheme: light;
  --bg: #f4f6f3;
  --panel: #ffffff;
  --ink: #17211b;
  --muted: #65736a;
  --line: #d9e1dc;
  --accent: #0f766e;
  --accent-dark: #0b4f4a;
  --accent-soft: #dff4ef;
  --blue: #244f8f;
  --blue-soft: #edf4ff;
  --gold: #9a6700;
  --gold-soft: #fff3c4;
  --warn-bg: #fff7df;
  --warn-line: #d9a441;
  --warn-text: #61460b;
  --soft: #edf3ef;
}

* {
  box-sizing: border-box;
}

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

button,
input,
select,
textarea {
  font: inherit;
}

button {
  border: 0;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 750;
}

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

h1 {
  margin-bottom: 0;
  font-size: 34px;
  line-height: 1.1;
}

h2 {
  margin-bottom: 0;
  font-size: 17px;
  line-height: 1.25;
}

.hidden {
  display: none !important;
}

.app-shell {
  min-height: 100vh;
  padding: 24px;
}

.auth-screen {
  min-height: calc(100vh - 48px);
  display: grid;
  place-items: center;
}

.auth-panel {
  width: min(1080px, 100%);
  display: grid;
  grid-template-columns: 1.2fr 420px;
  gap: 28px;
  align-items: center;
}

.brand-block {
  min-height: 520px;
  display: grid;
  align-content: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  background-color: #f7faf7;
  background-image: url("https://images.unsplash.com/photo-1522202176988-66273c2fd55f?auto=format&fit=crop&w=1200&q=80");
  background-size: cover;
  background-position: center;
  box-shadow: inset 0 0 0 1000px rgba(7, 22, 17, 0.58);
  padding: 40px;
  overflow: hidden;
}

.brand-block .eyebrow {
  color: #4ee2cd;
}

.brand-block h1 {
  max-width: 620px;
  font-size: 48px;
  letter-spacing: 0;
  color: #ffffff;
  text-shadow: 0 2px 18px rgba(0, 0, 0, 0.42);
}

.hero-copy {
  max-width: 580px;
  margin: 18px 0 0;
  color: #eef8f4;
  font-size: 18px;
  line-height: 1.55;
  text-shadow: 0 2px 14px rgba(0, 0, 0, 0.38);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  max-width: 560px;
  margin-top: 28px;
}

.hero-stats div {
  border: 1px solid rgba(15, 118, 110, 0.22);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.94);
  padding: 14px;
}

.hero-stats strong,
.hero-stats span {
  display: block;
}

.hero-stats strong {
  color: var(--accent-dark);
  font-size: 20px;
}

.hero-stats span {
  color: var(--muted);
  margin-top: 4px;
  font-size: 13px;
}

.auth-box,
.surface,
.stepper {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.auth-box {
  padding: 22px;
  box-shadow: 0 18px 50px rgba(20, 32, 26, 0.08);
}

.auth-heading {
  margin-bottom: 16px;
}

.auth-heading p {
  margin: 6px 0 0;
  color: var(--muted);
  line-height: 1.45;
}

.auth-message {
  border: 1px solid #d45151;
  border-radius: 6px;
  background: #fff0f0;
  color: #7d1e1e;
  padding: 10px;
  font-size: 13px;
}

.auth-message.success {
  border-color: rgba(15, 118, 110, 0.35);
  background: var(--accent-soft);
  color: var(--accent-dark);
}

.tabs {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
  margin-bottom: 16px;
}

.tab {
  background: var(--soft);
  color: var(--muted);
  padding: 10px;
}

.tab.active {
  background: var(--accent);
  color: white;
}

.workspace {
  max-width: 1440px;
  margin: 0 auto;
  padding: 24px;
}

.topbar {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.eyebrow {
  margin: 0 0 4px;
  color: var(--accent);
  font-weight: 800;
  letter-spacing: 0;
}

.app-grid {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 18px;
  align-items: start;
}

.stepper {
  display: grid;
  gap: 8px;
  padding: 12px;
  position: sticky;
  top: 18px;
}

.step {
  display: flex;
  align-items: center;
  gap: 10px;
  background: transparent;
  color: var(--muted);
  padding: 10px;
  text-align: left;
}

.step span {
  width: 26px;
  height: 26px;
  display: inline-grid;
  place-items: center;
  border-radius: 999px;
  background: var(--soft);
  color: var(--accent-dark);
  font-size: 13px;
}

.step.active {
  background: var(--blue-soft);
  color: var(--ink);
}

.step.active span {
  background: var(--blue);
  color: white;
}

.surface {
  min-height: 760px;
  padding: 18px;
}

.form-grid {
  display: grid;
  gap: 14px;
}

.section-title,
.report-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.section-title span,
.diagnosis-id {
  color: var(--muted);
  font-size: 13px;
}

.grid {
  display: grid;
  gap: 12px;
}

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

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

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

label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 650;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fbfcfb;
  color: var(--ink);
  padding: 10px 11px;
  outline: none;
}

textarea {
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--accent);
  outline: 2px solid #97c459;
  outline-offset: 1px;
}

.button-stack {
  display: grid;
  align-content: end;
}

.primary {
  width: 100%;
  margin-top: 4px;
  padding: 12px 14px;
  background: var(--accent);
  color: white;
}

.primary:hover {
  background: var(--accent-dark);
}

.secondary,
.ghost {
  padding: 10px 12px;
  background: var(--soft);
  color: var(--accent-dark);
  border: 1px solid var(--line);
}

.secondary.inline {
  width: auto;
}

.ghost {
  background: var(--panel);
}

.icon-button {
  width: 48px;
  height: 48px;
  border-radius: 999px;
  background: var(--accent);
  color: white;
  display: inline-grid;
  place-items: center;
}

.chat-icon-button svg {
  width: 27px;
  height: 27px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.profile-card {
  display: grid;
  gap: 8px;
  border-top: 1px solid var(--line);
  margin-top: 8px;
  padding-top: 12px;
}

.profile-card strong {
  color: var(--ink);
}

.profile-card a {
  color: var(--accent-dark);
  font-size: 13px;
  overflow-wrap: anywhere;
  text-decoration: none;
}

.profile-card a.disabled-link {
  color: var(--muted);
  pointer-events: none;
}

.skill-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.report-placeholder {
  margin-top: 16px;
  color: var(--muted);
}

.score-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 14px;
}

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

.metric span {
  display: block;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.metric strong {
  display: block;
  margin-top: 6px;
  font-size: 34px;
  line-height: 1;
}

.metric.duration strong {
  color: var(--blue);
  font-size: 24px;
}

.warning {
  margin: 14px 0;
  border: 1px solid var(--warn-line);
  border-radius: 8px;
  background: var(--warn-bg);
  color: var(--warn-text);
  padding: 12px;
  line-height: 1.45;
}

.report-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.result-block {
  margin-top: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  background: #fbfcfb;
}

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

.evidence-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 12px;
}

.evidence-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
  padding: 12px;
}

.evidence-card p {
  margin: 10px 0 0;
  line-height: 1.45;
}

.muted-text {
  color: var(--muted);
}

ul {
  margin: 10px 0 0;
  padding-left: 20px;
}

li {
  margin: 8px 0;
  line-height: 1.45;
}

.timeline {
  display: grid;
  gap: 10px;
  margin-top: 12px;
}

.phase {
  border: 1px solid var(--line);
  border-left: 4px solid var(--accent);
  border-radius: 8px;
  padding: 12px;
  background: white;
}

.phase-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-weight: 800;
}

.phase-days {
  color: var(--blue);
  white-space: nowrap;
}

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

.question-stack {
  display: grid;
  gap: 14px;
}

.question-block,
.role-question {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  background: #fbfcfb;
}

.question-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.question-heading span {
  color: var(--muted);
  font-size: 13px;
}

.question-block p {
  color: var(--ink);
  line-height: 1.5;
}

.option-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-top: 10px;
}

.choice {
  display: flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: white;
  padding: 10px;
  color: var(--ink);
}

.choice input {
  width: auto;
}

.role-question {
  margin-top: 12px;
}

.role-question legend {
  color: var(--ink);
  font-weight: 750;
  padding: 0 6px;
}

.project-box,
.mentor-brief {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  background: #fbfcfb;
  margin: 12px 0;
}

.project-title {
  margin: 0;
  font-weight: 800;
  line-height: 1.45;
}

.mentor-steps {
  display: grid;
  gap: 12px;
  padding-left: 22px;
}

.mentor-steps li {
  padding-left: 4px;
}

.mentor-steps strong {
  display: block;
  margin-bottom: 4px;
  color: var(--accent-dark);
}

.todo-preview {
  display: grid;
  gap: 8px;
  padding-left: 0;
  list-style: none;
}

.todo-preview li {
  display: flex;
  align-items: start;
  gap: 9px;
}

.todo-index {
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  display: inline-grid;
  place-items: center;
  border-radius: 999px;
  background: var(--blue-soft);
  color: var(--blue);
  font-size: 12px;
  font-weight: 800;
}

.execute-phase {
  margin-top: 10px;
  width: 100%;
}

.progress-panel {
  display: grid;
  gap: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfb;
  padding: 14px;
  margin: 16px 0;
}

.progress-label {
  display: block;
  color: var(--muted);
  font-size: 13px;
  font-weight: 750;
}

.progress-track {
  height: 10px;
  border-radius: 999px;
  background: var(--soft);
  overflow: hidden;
}

.progress-fill {
  width: 0%;
  height: 100%;
  background: var(--accent);
  transition: width 180ms ease;
}

.task-list {
  display: grid;
  gap: 12px;
}

.task-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfb;
  padding: 14px;
}

.task-card.locked {
  opacity: 0.62;
}

.task-card.done {
  border-color: rgba(15, 118, 110, 0.45);
  background: #f0faf7;
}

.task-check {
  display: flex;
  grid-template-columns: none;
  align-items: center;
  gap: 12px;
  color: var(--ink);
}

.task-check input {
  width: 22px;
  height: 22px;
  flex: 0 0 auto;
}

.task-check small,
.task-score {
  display: block;
  color: var(--muted);
  font-size: 13px;
  margin-top: 4px;
}

.task-feedback {
  margin-top: 10px;
}

.resource-box,
.success-box,
.task-evaluation {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfb;
  padding: 14px;
  margin-top: 14px;
}

.success-box {
  border-color: rgba(15, 118, 110, 0.45);
  background: #f0faf7;
}

.task-evaluation-form {
  display: grid;
  gap: 12px;
}

.chat-shell {
  display: grid;
  gap: 14px;
  margin-top: 16px;
}

.chat-drawer {
  position: fixed;
  top: 24px;
  right: 24px;
  width: min(520px, calc(100vw - 32px));
  max-height: calc(100vh - 48px);
  overflow: auto;
  z-index: 20;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: 14px;
}

.chat-drawer-header {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 12px;
}

.chat-messages {
  min-height: 420px;
  max-height: 540px;
  overflow: auto;
  display: grid;
  align-content: start;
  gap: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfb;
  padding: 14px;
}

.chat-bubble {
  width: min(760px, 88%);
  border-radius: 8px;
  padding: 12px;
  line-height: 1.5;
  white-space: pre-wrap;
}

.chat-bubble.assistant {
  justify-self: start;
  background: white;
  border: 1px solid var(--line);
}

.chat-bubble.user {
  justify-self: end;
  background: var(--accent);
  color: white;
}

.chat-form {
  display: grid;
  grid-template-columns: 1fr 150px;
  gap: 10px;
  align-items: end;
}

.chat-form .primary {
  margin-top: 0;
  height: 100%;
}

.interview-panel {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 14px;
  align-items: start;
  margin-top: 16px;
}

.timer-card {
  position: sticky;
  top: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfb;
  padding: 16px;
}

.timer-card span,
.timer-card small {
  display: block;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.timer-card strong {
  display: block;
  margin: 8px 0;
  color: var(--gold);
  font-size: 36px;
  line-height: 1;
}

@media (max-width: 1040px) {
  .auth-panel,
  .app-grid,
  .interview-panel,
  .grid.two,
  .grid.three,
  .grid.four,
  .skill-grid,
  .score-row,
  .report-grid,
  .evidence-grid,
  .option-grid {
    grid-template-columns: 1fr;
  }

  .app-shell {
    padding: 14px;
  }

  .topbar,
  .report-header {
    align-items: start;
    flex-direction: column;
  }

  .stepper {
    position: static;
  }

  h1 {
    font-size: 27px;
  }

  .brand-block {
    min-height: auto;
    padding: 24px;
  }

  .brand-block h1 {
    font-size: 34px;
  }

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

  .chat-form {
    grid-template-columns: 1fr;
  }

  .chat-bubble {
    width: 100%;
  }
}