:root {
  --sand: #f5e9d5;
  --ink: #1a1b1f;
  --mustard: #d6922c;
  --teal: #1f8a8b;
  --paper: #fff9ef;
  --error: #ab3b25;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Space Grotesk", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 20% 10%, rgba(31, 138, 139, 0.28), transparent 30%),
    radial-gradient(circle at 80% 80%, rgba(214, 146, 44, 0.3), transparent 40%),
    linear-gradient(160deg, #f8efe2 0%, #efe3cb 45%, #e4d2b0 100%);
}

.shell {
  width: min(1120px, 94vw);
  margin: 48px auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.hero,
.panel {
  background: var(--paper);
  border: 2px solid var(--ink);
  border-radius: 22px;
  box-shadow: 8px 8px 0 var(--ink);
  padding: 28px;
}

.eyebrow {
  display: inline-block;
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--mustard);
  font-weight: 700;
  letter-spacing: 0.04em;
  font-size: 0.74rem;
}

h1 {
  margin: 14px 0 10px;
  font-size: clamp(1.7rem, 4vw, 2.7rem);
  line-height: 1.05;
}

h2 {
  margin: 0 0 8px;
  font-size: 1.4rem;
}

h3 {
  margin: 18px 0 8px;
  font-size: 1.05rem;
}

.subtext,
.hint {
  margin-top: 0;
  color: #404249;
}

.workflow-list {
  margin: 12px 0 0;
  padding-left: 18px;
  display: grid;
  gap: 8px;
  color: #2f3137;
}

.workflow-list li {
  line-height: 1.35;
}

form {
  display: grid;
  gap: 8px;
  margin-top: 14px;
}

label {
  font-size: 0.9rem;
  font-weight: 500;
}

input {
  border: 2px solid var(--ink);
  border-radius: 10px;
  padding: 11px 12px;
  font-family: inherit;
  font-size: 0.96rem;
  background: #fff;
}

input:focus {
  outline: none;
  border-color: var(--teal);
}

select {
  border: 2px solid var(--ink);
  border-radius: 10px;
  padding: 11px 12px;
  font-family: inherit;
  font-size: 0.96rem;
  background: #fff;
}

select:focus {
  outline: none;
  border-color: var(--teal);
}

button {
  margin-top: 4px;
  border: 2px solid var(--ink);
  border-radius: 12px;
  background: var(--teal);
  color: white;
  padding: 10px 12px;
  font-family: inherit;
  font-weight: 700;
  cursor: pointer;
}

button:hover {
  filter: brightness(0.95);
}

button.ghost {
  background: white;
  color: var(--ink);
}

button.danger {
  border-color: var(--error);
  color: var(--error);
}

.row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
}

.status {
  min-height: 1.1rem;
  margin-top: 10px;
  font-size: 0.9rem;
  color: var(--error);
}

.result {
  margin-top: 14px;
  border: 2px dashed var(--ink);
  border-radius: 10px;
  padding: 10px 12px;
  background: #fff;
  font-size: 0.9rem;
}

.expander {
  margin: 12px 0;
  border: 2px dashed var(--ink);
  border-radius: 12px;
  padding: 10px 12px;
  background: #fff;
}

.workspace-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  align-items: start;
}

.workspace-card {
  background: var(--paper);
  border: 2px solid var(--ink);
  border-radius: 18px;
  box-shadow: 6px 6px 0 var(--ink);
  padding: 18px;
}

.workspace-card .dashboard {
  margin-top: 0;
}

.dashboard {
  margin-top: 18px;
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.dashboard > .row,
.dashboard > label,
.dashboard > select,
.dashboard > .season-section {
  grid-column: 1 / -1;
}

.card {
  border: 2px dashed var(--ink);
  border-radius: 14px;
  padding: 12px 14px;
  background: #fff;
}

.season-section {
  border: 2px solid var(--ink);
  border-radius: 16px;
  padding: 14px;
  background: #fffef8;
  display: grid;
  gap: 12px;
}

.season-header {
  display: grid;
  grid-template-columns: minmax(240px, 1fr) minmax(240px, 360px);
  gap: 12px;
  align-items: end;
}

.season-header h4 {
  margin-top: 0;
}

.season-grid {
  display: grid;
  grid-template-columns: minmax(320px, 1.2fr) minmax(250px, 1fr) minmax(250px, 1fr);
  gap: 12px;
  align-items: start;
}

.season-grid .card {
  min-height: 100%;
}

@media (max-width: 1120px) {
  .season-grid {
    grid-template-columns: repeat(2, minmax(260px, 1fr));
  }

  #task-card {
    grid-column: 1 / -1;
  }
}

h4 {
  margin: 4px 0 8px;
  font-size: 0.98rem;
}

.invite-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
}

.list {
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 6px;
}

.list li {
  border: 2px solid var(--ink);
  border-radius: 10px;
  padding: 7px 9px;
  font-size: 0.88rem;
  background: #fffef9;
}

.list-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.list-row button {
  margin-top: 0;
}

.history-card {
  grid-column: 1 / -1;
}

.history-heatmap {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 12px;
  grid-template-rows: repeat(7, 12px);
  gap: 4px;
  overflow-x: auto;
  padding: 6px 2px 2px;
}

.heat-cell,
.heat-box {
  width: 12px;
  height: 12px;
  border: 1px solid rgba(26, 27, 31, 0.14);
  border-radius: 3px;
}

.level-0 {
  background: #ece7da;
}

.level-1 {
  background: #cde8da;
}

.level-2 {
  background: #8ed0b8;
}

.level-3 {
  background: #46b894;
}

.level-4 {
  background: #1f8a8b;
}

.history-legend {
  margin-top: 10px;
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  color: #404249;
}

.submission-link-hint {
  margin-top: 12px;
}

.task-submission-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  margin-top: 12px;
}

.task-submit-card {
  display: grid;
  align-content: start;
}

.task-submit-form {
  display: grid;
  gap: 8px;
}

#submission-panel {
  display: grid;
  gap: 14px;
}

.proof-preview-wrap {
  display: grid;
  gap: 8px;
  margin-top: 10px;
}

.proof-preview {
  width: min(100%, 520px);
  max-height: 420px;
  object-fit: contain;
  border: 2px solid var(--ink);
  border-radius: 12px;
  background: #fff;
}

.verify-actions {
  margin-top: 12px;
}

.submission-history-item {
  display: grid;
  gap: 8px;
}

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

.submission-actions button {
  margin-top: 0;
  padding: 6px 10px;
  font-size: 0.8rem;
}

.hidden {
  display: none;
}

@media (max-width: 880px) {
  .shell {
    margin: 24px auto 40px;
  }

  .hero,
  .panel {
    box-shadow: 6px 6px 0 var(--ink);
  }

  .season-header {
    grid-template-columns: 1fr;
  }

  .season-grid {
    grid-template-columns: 1fr;
  }

  .workspace-split {
    grid-template-columns: 1fr;
  }
}