/* =====================================================
   Seal Tutors Study Sheets
   Scoped to the Sheets Importer frontend output.
===================================================== */

:root {
  --stsi-navy: var(--st_navy, #071b4a);
  --stsi-gold: var(--st_gold, #f5b51b);
  --stsi-text: var(--st_text, #687386);
  --stsi-line: var(--st_line, #e3e8f0);
  --stsi-soft: #fbfcff;
  --stsi-shadow: 0 18px 46px rgba(7, 27, 74, 0.08);
}

.stsi-frontend-wrap,
.stsi-assignment-view {
  width: 100%;
  max-width: none;
  margin: 0 auto;
  color: var(--stsi-navy);
}

/* The profile template already supplies the single assignment card. */
.stsi-frontend-wrap {
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.stsi-study-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.stsi-study-control {
  position: relative;
  min-width: 0;
}

.stsi-study-control::before {
  content: attr(data-label);
  display: block;
  margin: 0 0 8px;
  color: #8792a5;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.07em;
  line-height: 1.3;
  text-transform: uppercase;
}

.stsi-study-control > div {
  width: 100%;
  margin: 0;
  padding: 0;
}

.stsi-study-control .ai_st_input_field_group,
.stsi-study-control .ai_st_input_options,
.stsi-study-control .ai_st_selected_user_field {
  width: 100% !important;
  margin: 0 !important;
  padding: 0 !important;
}

.stsi-study-control .ai_st_required_error {
  display: none !important;
}

.stsi-study-control select,
.stsi-study-control input {
  display: block;
  box-sizing: border-box;
  width: 100% !important;
  max-width: none !important;
  min-height: 58px;
  margin: 0 !important;
  padding: 0 46px 0 16px !important;
  border: 1px solid var(--stsi-line) !important;
  border-radius: 18px !important;
  outline: 0;
  background-color: var(--stsi-soft) !important;
  color: var(--stsi-navy) !important;
  font: inherit;
  font-weight: 750;
  box-shadow: none !important;
  transition: border-color 0.22s ease, box-shadow 0.22s ease, background 0.22s ease;
}

.stsi-study-control select:focus,
.stsi-study-control input:focus {
  border-color: rgba(245, 181, 27, 0.85) !important;
  background-color: #fff !important;
  box-shadow: 0 0 0 4px rgba(245, 181, 27, 0.13) !important;
}

.stsi-study-control .stsi-placeholder-select:disabled {
  cursor: not-allowed;
  opacity: 1;
  color: #7f899b !important;
  -webkit-text-fill-color: #7f899b;
}

.stsi-user-control[hidden] {
  display: none !important;
}

.stsi-study-button-row {
  grid-column: 1 / -1;
  padding-top: 10px;
}

.stsi-btn {
  min-height: 52px;
  padding: 0 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  border: 1px solid transparent;
  border-radius: 999px;
  font: inherit;
  font-weight: 900;
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.22s ease, box-shadow 0.22s ease, color 0.22s ease, background 0.22s ease;
}

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

.stsi-btn-primary {
  min-width: 220px;
  background: var(--stsi-navy);
  color: #fff;
  box-shadow: 0 16px 36px rgba(7, 27, 74, 0.14);
}

.stsi-btn-primary:hover {
  color: var(--stsi-navy);
  background: var(--stsi-gold);
  box-shadow: 0 18px 36px rgba(245, 181, 27, 0.22);
}

.stsi-btn-light {
  color: var(--stsi-navy);
  border-color: var(--stsi-line);
  background: #fff;
}

.stsi-btn-light:hover {
  color: #fff;
  background: var(--stsi-navy);
}

.stsi-assignment-view[hidden] {
  display: none !important;
}

.stsi-assignment-tools {
  position: sticky;
  top: 0px;
  z-index: 10;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  border: 1px solid rgba(7, 27, 74, 0.08);
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: var(--stsi-shadow);
  backdrop-filter: blur(14px);
}

/* Keep the sticky assignment toolbar below the WordPress admin bar. */
body.admin-bar .stsi-assignment-tools {
  top: 164px;
}

.stsi-assignment-tools h3 {
  margin: 0;
  color: var(--stsi-navy);
  font-size: 26px;
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 1.1;
  text-align: center;
}

.stsi-assignment-list {
  display: grid;
  gap: 18px;
  margin-top: 18px;
}

.stsi-assignment-card {
  overflow: hidden;
  border: 1px solid rgba(7, 27, 74, 0.08);
  border-radius: 30px;
  background: #fff;
  box-shadow: var(--stsi-shadow);
  transition: transform 0.28s ease, box-shadow 0.28s ease, border-color 0.28s ease;
}

.stsi-assignment-card:hover {
  transform: translateY(-5px);
  border-color: rgba(245, 181, 27, 0.45);
  box-shadow: 0 24px 58px rgba(7, 27, 74, 0.11);
}

.stsi-assignment-head {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr) auto;
  align-items: start;
  gap: 18px;
  padding: 22px;
  border-bottom: 1px solid #f0f3f8;
  background: linear-gradient(135deg, #fff, var(--stsi-soft));
}

.stsi-assignment-number {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border-radius: 17px;
  color: var(--stsi-navy);
  background: var(--stsi-gold);
  box-shadow: 0 12px 25px rgba(245, 181, 27, 0.24);
  font-size: 18px;
  font-weight: 900;
}

.stsi-assignment-title h4 {
  margin: 0 0 8px;
  color: var(--stsi-navy);
  font-size: 19px;
  font-weight: 900;
  letter-spacing: -0.025em;
  line-height: 1.38;
}

.stsi-assignment-title p {
  max-width: 920px;
  margin: 0;
  color: var(--stsi-text);
  font-size: 14px;
  line-height: 1.65;
}

.stsi-assignment-open {
  padding: 12px 16px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--stsi-line);
  border-radius: 999px;
  color: var(--stsi-navy);
  background: #fff;
  font-weight: 900;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
  transition: transform 0.22s ease, color 0.22s ease, background 0.22s ease;
}

.stsi-assignment-open:hover {
  transform: translateY(-2px);
  color: #fff;
  background: var(--stsi-navy);
}

.stsi-assignment-fields {
  display: grid;
  grid-template-columns: repeat(5, minmax(120px, 1fr));
  gap: 12px;
  padding: 18px 22px 22px;
}

.stsi-sheet-input {
  min-width: 0;
}

.stsi-sheet-input-wide {
  grid-column: 1 / -1;
}

.stsi-sheet-input label {
  display: block;
  margin: 0 0 7px;
  color: #8792a5;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.07em;
  line-height: 1.3;
  text-transform: uppercase;
}

.stsi-sheet-input input,
.stsi-sheet-input textarea {
  width: 100%;
  min-height: 48px;
  padding: 12px 13px;
  border: 1px solid var(--stsi-line);
  border-radius: 16px;
  outline: 0;
  color: var(--stsi-navy);
  background: var(--stsi-soft);
  font: inherit;
  font-weight: 750;
  line-height: 1.45;
  resize: vertical;
  box-shadow: none;
  transition: border-color 0.22s ease, box-shadow 0.22s ease, background 0.22s ease;
}

.stsi-sheet-input textarea {
  min-height: 78px;
}

.stsi-sheet-input input:focus,
.stsi-sheet-input textarea:focus {
  border-color: rgba(245, 181, 27, 0.85);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(245, 181, 27, 0.13);
}

.stsi-sheet-input input:disabled,
.stsi-sheet-input textarea:disabled {
  opacity: 1;
  cursor: default;
}

.stsi-assignment-mobile-hint {
  display: none;
  margin-top: 8px;
  color: var(--stsi-text);
  font-size: 13px;
  font-weight: 750;
}

.stsi-empty-state {
  margin-top: 18px;
  padding: 58px 22px;
  border: 1px solid rgba(7, 27, 74, 0.08);
  border-radius: 28px;
  color: var(--stsi-text);
  background: #fff;
  box-shadow: var(--stsi-shadow);
  font-weight: 800;
  text-align: center;
}

#stsi-toast {
  border-radius: 999px !important;
  background: var(--stsi-navy) !important;
  box-shadow: var(--stsi-shadow) !important;
  font-weight: 800;
}

@media (max-width: 991px) {
  .stsi-frontend-wrap {
    padding: 0;
    border-radius: 0;
  }

  .stsi-study-grid {
    grid-template-columns: 1fr;
  }

  .stsi-assignment-tools {
    position: relative;
    top: auto;
    grid-template-columns: 1fr;
    align-items: stretch;
  }

  .stsi-assignment-tools h3 {
    grid-row: 1;
    font-size: 24px;
  }

  .stsi-assignment-tools .stsi-btn {
    width: 100%;
  }

  .stsi-assignment-head {
    grid-template-columns: 54px minmax(0, 1fr);
    gap: 13px;
  }

  .stsi-assignment-open {
    grid-column: 1 / -1;
    justify-content: center;
  }

  .stsi-assignment-fields {
    grid-template-columns: 1fr 1fr;
  }

  .stsi-sheet-input-wide {
    grid-column: 1 / -1;
  }

  .stsi-assignment-mobile-hint {
    display: block;
  }
}

@media (max-width: 575px) {
  .stsi-frontend-wrap {
    padding: 0;
    border-radius: 0;
  }

  .stsi-study-button-row .stsi-btn {
    width: 100%;
    min-width: 0;
  }

  .stsi-assignment-card {
    border-radius: 24px;
  }

  .stsi-assignment-head {
    padding: 18px;
  }

  .stsi-assignment-number {
    width: 46px;
    height: 46px;
    border-radius: 15px;
  }

  .stsi-assignment-title h4 {
    display: -webkit-box;
    overflow: hidden;
    font-size: 17px;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 4;
  }

  .stsi-assignment-title p {
    display: -webkit-box;
    overflow: hidden;
    font-size: 13px;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 4;
  }

  .stsi-assignment-fields {
    grid-template-columns: 1fr;
    padding: 16px 18px 18px;
  }

  .stsi-sheet-input-wide {
    grid-column: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .stsi-btn,
  .stsi-assignment-card,
  .stsi-assignment-open,
  .stsi-loader-mark {
    animation: none !important;
    transition: none !important;
  }
}