@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@400;500;600;700;800&family=Sora:wght@600;700;800&display=swap");

:root {
  --white: #ffffff;
  --black: #000000;
  --cream: #f7efe3;
  --beige: #dfc7a8;
  --brown: #3b251b;
  --green: #465f3d;
  --terracotta: #a45f3d;
  --line: #d6c1a4;
  --muted: #5b524b;
  --shadow: 0 18px 42px rgba(0, 0, 0, 0.14);
  --background-image: url("https://img.magnific.com/free-vector/modern-style-grey-zig-zag-stripe-abstract-wallpaper_1017-59367.jpg?semt=ais_hybrid&w=740&q=80");
  --font-heading: "Sora", "Aptos Display", "Segoe UI", sans-serif;
  --font-body: "IBM Plex Sans", "Aptos", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--black);
  background-color: var(--white);
  background-image: var(--background-image);
  background-size: 100% 100%;
  background-position: center;
  background-repeat: no-repeat;
  background-attachment: fixed;
  font-family: var(--font-body);
}

button,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

a {
  color: inherit;
}

:focus-visible {
  outline: 3px solid var(--black);
  outline-offset: 4px;
}

.sus-stage {
  width: 100vw;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 28px;
}

.interactive-panel {
  width: min(1160px, 100%);
  display: grid;
  gap: 28px;
  padding: 28px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 30px;
  box-shadow: var(--shadow);
}

.back-link {
  width: fit-content;
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 10px 16px;
  color: var(--white);
  background: var(--black);
  border-radius: 999px;
  font-family: var(--font-body);
  font-weight: 900;
  text-decoration: none;
}

.stage-copy {
  max-width: 840px;
}

.label {
  margin: 0 0 10px;
  color: var(--terracotta);
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  margin: 0;
  color: var(--black);
  font-family: var(--font-heading);
  font-size: clamp(2.4rem, 6vw, 5.4rem);
  line-height: 0.94;
  letter-spacing: -0.05em;
}

.subtitle {
  margin: 16px 0 0;
  color: var(--brown);
  font-family: var(--font-body);
  font-size: clamp(1rem, 2vw, 1.24rem);
}

.platform-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.platform-grid-inner {
  display: contents;
}

.platform-card {
  min-height: 190px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 12px;
  padding: 20px;
  color: var(--black);
  background: var(--cream);
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.10);
  text-align: start;
  text-decoration: none;
  transition: transform 180ms ease, background-color 180ms ease, color 180ms ease, border-color 180ms ease;
}

button.platform-card {
  appearance: none;
}

.platform-card:hover,
.platform-card:focus-visible {
  transform: translateY(-6px);
  color: var(--white);
  background: var(--black);
  border-color: var(--black);
}

.platform-icon {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  color: var(--white);
  background: var(--black);
  border-radius: 18px;
  font-family: var(--font-heading);
  font-weight: 900;
}

.platform-card:hover .platform-icon,
.platform-card:focus-visible .platform-icon {
  color: var(--black);
  background: var(--white);
}

.platform-card h3,
.platform-card strong {
  margin: 0;
  color: inherit;
  font-family: var(--font-heading);
  font-size: 1.24rem;
  line-height: 1.08;
}

.platform-card small {
  color: inherit;
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 800;
}

.platform-meta {
  display: grid;
  gap: 7px;
}

.author-credit {
  margin: 0;
  color: var(--black);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 800;
  text-align: center;
}

.status-pill,
.score-pill {
  display: inline-flex;
  width: fit-content;
  align-items: center;
  min-height: 30px;
  padding: 6px 10px;
  color: var(--black);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 900;
}

.status-pill.completed {
  color: var(--white);
  background: var(--green);
  border-color: var(--green);
}

.status-pill.review {
  color: var(--white);
  background: var(--terracotta);
  border-color: var(--terracotta);
}

.button {
  min-height: 44px;
  padding: 11px 16px;
  color: var(--white);
  background: var(--black);
  border: 1px solid transparent;
  border-radius: 999px;
  font-family: var(--font-body);
  font-weight: 900;
  transition: transform 180ms ease, background-color 180ms ease;
}

.button-primary {
  background: var(--black);
}

.button:hover {
  transform: translateY(-2px);
}

.button-secondary {
  background: var(--green);
}

.button-danger {
  background: var(--terracotta);
}

.button-light {
  color: var(--black);
  background: var(--cream);
  border-color: var(--line);
}

.modal[hidden] {
  display: none;
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: grid;
  place-items: center;
  padding: 18px;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.66);
}

.modal-panel {
  position: relative;
  width: min(980px, 100%);
  max-height: min(90vh, 940px);
  overflow: auto;
  padding: 24px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 26px;
  box-shadow: var(--shadow);
}

.modal-panel.compact {
  width: min(820px, 100%);
}

.modal-panel.wide {
  width: min(1120px, 100%);
}

.modal-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 18px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.modal-title {
  margin: 0;
  color: var(--black);
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 4vw, 2.45rem);
  line-height: 1.05;
}

.close-button {
  width: 46px;
  height: 46px;
  flex: 0 0 auto;
  color: var(--white);
  background: var(--black);
  border: 1px solid var(--black);
  border-radius: 999px;
  font-size: 1.65rem;
  line-height: 1;
}

.modal-body,
table,
.field-label {
  color: var(--brown);
  font-family: var(--font-body);
}

.scale-note {
  margin: 0 0 14px;
  color: var(--muted);
  font-weight: 800;
}

.info-modal-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.mini-info,
.chart-card,
.analysis-grid article,
.result-box,
.validation-message {
  padding: 16px;
  background: var(--cream);
  border: 1px solid var(--line);
  border-radius: 18px;
}

.mini-info h3,
.chart-card h3 {
  margin: 0 0 10px;
  color: var(--black);
}

.mini-info p {
  margin: 0;
}

.question-list {
  display: grid;
  gap: 10px;
  margin: 14px 0;
}

.question-card {
  padding: 12px;
  background: var(--cream);
  border: 1px solid var(--line);
  border-radius: 16px;
}

.question-card legend {
  margin-bottom: 8px;
  color: var(--black);
  font-size: 0.92rem;
  font-weight: 900;
}

.scale-options {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 8px;
}

.scale-options label {
  display: grid;
  gap: 6px;
  place-items: center;
  min-height: 56px;
  padding: 7px;
  color: var(--brown);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 14px;
  text-align: center;
  font-size: 0.72rem;
}

.scale-options input {
  accent-color: var(--black);
}

.result-box {
  display: grid;
  gap: 8px;
  background: var(--white);
}

.result-score {
  color: var(--green);
  font-size: 2rem;
  font-weight: 900;
}

.validation-message {
  color: var(--terracotta);
  font-weight: 900;
}

.validation-message[hidden] {
  display: none;
}

.field-label {
  display: block;
  margin: 12px 0 8px;
  color: var(--black);
  font-weight: 900;
}

.notes-panel {
  margin-top: 12px;
  padding: 12px 14px;
  background: var(--cream);
  border: 1px solid var(--line);
  border-radius: 16px;
}

.notes-panel summary {
  color: var(--black);
  font-weight: 900;
  cursor: pointer;
}

textarea {
  width: 100%;
  resize: vertical;
  min-height: 86px;
  padding: 14px;
  color: var(--black);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 18px;
  font-family: var(--font-body);
}

.modal-actions,
.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.comparison-layout {
  display: grid;
  grid-template-columns: minmax(420px, 1fr) minmax(320px, 0.8fr);
  gap: 20px;
  align-items: start;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--white);
}

table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
}

caption {
  padding: 14px;
  color: var(--black);
  font-weight: 900;
  text-align: start;
}

th,
td {
  padding: 13px;
  border-top: 1px solid var(--line);
  text-align: start;
  vertical-align: top;
}

th {
  color: var(--white);
  background: var(--black);
}

.bar-chart {
  display: grid;
  gap: 14px;
}

.bar-row {
  display: grid;
  grid-template-columns: 128px minmax(120px, 1fr) 52px;
  gap: 10px;
  align-items: center;
}

.bar-label,
.bar-score {
  font-weight: 900;
}

.bar-score {
  text-align: end;
}

.bar-track {
  height: 24px;
  overflow: hidden;
  background: var(--cream);
  border: 1px solid var(--line);
  border-radius: 999px;
}

.bar-fill {
  width: 0%;
  height: 100%;
  background: var(--green);
  border-radius: 999px;
  transition: width 220ms ease;
}

.analysis-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin: 20px 0;
}

.analysis-grid article {
  background: var(--white);
  box-shadow: none;
}

.analysis-grid span {
  display: block;
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 900;
}

.analysis-grid strong {
  display: block;
  margin-top: 6px;
  color: var(--black);
  font-size: 1.03rem;
}

body.modal-open {
  overflow: hidden;
}

@media (max-width: 1080px) {
  .platform-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .comparison-layout,
  .info-modal-grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 680px) {
  .sus-stage {
    padding: 12px;
    place-items: start center;
  }

  .interactive-panel,
  .modal-panel {
    padding: 18px;
    border-radius: 20px;
  }

  .platform-grid,
  .analysis-grid {
    grid-template-columns: 1fr;
  }

  .platform-card {
    min-height: 138px;
  }

  .scale-options {
    grid-template-columns: 1fr;
  }

  .scale-options label {
    min-height: 52px;
    grid-template-columns: auto 1fr;
    place-items: center start;
    text-align: start;
  }

  .button,
  .actions .button,
  .modal-actions .button {
    width: 100%;
  }

  .bar-row {
    grid-template-columns: 1fr;
  }

  .bar-score {
    text-align: start;
  }
}

@media print {
  body {
    background: var(--white);
  }

  .back-link,
  .button,
  .modal {
    display: none !important;
  }

  .interactive-panel,
  .platform-card {
    box-shadow: none;
  }
}