/* The study space follows the app theme tokens, including the dark theme. */
.aiss { margin: 0 0 30px; min-width: 0; color: var(--text); }
.aiss *, .aiss *::before, .aiss *::after { box-sizing: border-box; }
.aiss button, .aiss input, .aiss select { font: inherit; }
.aiss button { cursor: pointer; }
.aiss button:disabled { opacity: .45; cursor: default; }
.aiss button:focus-visible, .aiss summary:focus-visible, .aiss input:focus-visible, .aiss select:focus-visible { outline: 3px solid var(--accent-border); outline-offset: 3px; }
.aiss-heading { display: flex; align-items: center; justify-content: space-between; gap: 24px; margin-bottom: 22px; }
.aiss-eyebrow { display: inline-flex; gap: 7px; align-items: center; color: var(--text-soft); font-size: 12.5px; font-weight: 600; }
.aiss-eyebrow svg { color: var(--accent-ink); }
.aiss-heading h2 { margin: 8px 0 6px; font-size: clamp(24px, 2.6vw, 31px); line-height: 1.3; letter-spacing: -.04em; }
.aiss-heading p { margin: 0; color: var(--text-soft); font-size: 13.5px; line-height: 1.7; }
.aiss-heading-tools { display: flex; flex: 0 0 auto; align-items: center; gap: 22px; }
.aiss-subject-selector { display: grid; gap: 5px; color: var(--text-soft); font-size: 12px; }
.aiss-subject-selector select { min-height: 35px; max-width: 150px; padding: 5px 25px 5px 10px; border: 1px solid var(--border); border-radius: 8px; background: var(--surface); color: var(--text); font-size: 13.5px; }
.aiss-course-count { display: grid; gap: 4px; text-align: right; flex: 0 0 auto; }
.aiss-course-count > strong { font: 600 24px/1.2 var(--mono); }
.aiss-course-count > strong span { color: var(--text-faint); font-size: 15px; font-weight: 400; }
.aiss-course-count > span { color: var(--text-soft); font-size: 12px; }
.aiss-layout { display: grid; grid-template-columns: minmax(0, 1.55fr) minmax(275px, 1fr); gap: 16px; align-items: start; }
.aiss-plan, .aiss-coach, .aiss-estimate { min-width: 0; padding: 22px; border: 1px solid var(--border); border-radius: 18px; background: var(--surface); box-shadow: var(--shadow-sm); }
.aiss-plan { border-top: 3px solid var(--accent); padding-top: 20px; }
.aiss-side { display: grid; min-width: 0; gap: 16px; }
.aiss-card-heading { position: relative; display: flex; align-items: center; gap: 10px; min-width: 0; }
.aiss-card-heading > div { min-width: 0; }
.aiss-icon { display: grid; place-items: center; flex: 0 0 38px; width: 38px; height: 38px; border-radius: 11px; background: var(--surface-subtle); color: var(--text-soft); }
.aiss-plan .aiss-icon { background: var(--accent-soft); color: var(--accent-ink); }
.aiss-kicker { color: var(--text-soft); font-size: 12px; line-height: 1.4; }
.aiss-card-heading h3 { margin: 3px 0 0; font-size: 16px; letter-spacing: -.025em; line-height: 1.35; }
.aiss-settings { margin-left: auto; flex: 0 0 auto; }
.aiss-settings summary { display: flex; align-items: center; gap: 5px; padding: 8px 0 8px 8px; color: var(--text-soft); font-size: 12.5px; list-style: none; cursor: pointer; }
.aiss-settings summary::-webkit-details-marker { display: none; }
.aiss-settings[open] summary { color: var(--text); }
.aiss-settings form { position: absolute; top: calc(100% + 12px); right: 0; width: min(320px, 100%); z-index: 5; display: grid; gap: 14px; padding: 20px; border: 1px solid var(--border); border-radius: 14px; background: var(--surface); box-shadow: var(--shadow-md); }
.aiss-settings h4 { margin: 0; font-size: 15px; }
.aiss-settings label { display: block; font-size: 13.5px; line-height: 1.5; }
.aiss-settings label > span { font-size: 12px; color: var(--text-soft); }
.aiss-settings input, .aiss-settings select { display: block; width: 100%; min-width: 0; height: 40px; margin-top: 6px; padding: 6px 10px; border: 1px solid var(--border-strong); border-radius: 8px; color: var(--text); background: var(--surface); font-size: 14px; }
.aiss-settings p { margin: 0; color: var(--text-soft); font-size: 12px; }
.aiss-plan-meta { display: flex; gap: 8px 17px; flex-wrap: wrap; margin: 20px 0 13px; padding: 13px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); color: var(--text-soft); font-size: 12px; }
.aiss-plan-meta b { color: var(--text); font-size: 14px; font-weight: 650; }
.aiss-plan-reason { display: flex; gap: 7px; align-items: start; margin: 0 0 6px; padding: 10px 11px; border-radius: 9px; background: var(--surface-subtle); color: var(--text-soft); font-size: 12.5px; line-height: 1.65; }
.aiss-plan-reason > svg { flex: 0 0 auto; margin-top: 3px; }
.aiss-tasks { list-style: none; padding: 0; margin: 0; }
.aiss-task { display: flex; align-items: start; gap: 12px; padding: 17px 0; border-bottom: 1px solid var(--border); }
.aiss-task:last-child { border-bottom: 0; }
.aiss-task-number { display: grid; place-items: center; flex: 0 0 29px; width: 29px; height: 29px; margin-top: 1px; border: 1px solid var(--border); border-radius: 50%; color: var(--text-soft); font: 500 12px/1 var(--mono); }
.aiss-task-copy { flex: 1; min-width: 0; }
.aiss-task-title { display: flex; gap: 10px; justify-content: space-between; align-items: start; }
.aiss-task-title strong { font-size: 14px; font-weight: 650; line-height: 1.55; overflow-wrap: anywhere; }
.aiss-task-title > span { flex: 0 0 auto; color: var(--text-soft); font-size: 12px; line-height: 1.8; white-space: nowrap; }
.aiss-task-copy > p { margin: 5px 0 9px; color: var(--text-soft); font-size: 12.5px; line-height: 1.6; overflow-wrap: anywhere; }
.aiss-task-actions { display: flex; gap: 4px 14px; align-items: center; flex-wrap: wrap; }
.aiss-link { display: inline-flex; gap: 4px; align-items: center; min-height: 28px; padding: 0; border: 0; background: transparent; color: var(--text); font-size: 12.5px !important; font-weight: 650 !important; line-height: 1.5; }
.aiss-link:hover { color: var(--accent-ink); }
.aiss-task-control { min-height: 28px; padding: 0; border: 0; background: transparent; color: var(--text-soft); font-size: 12px !important; line-height: 1.5; }
.aiss-task-control:hover { color: var(--text); text-decoration: underline; text-underline-offset: 3px; }
.aiss-task.is-done .aiss-task-number { color: var(--success); border-color: var(--success-border); background: var(--success-soft); }
.aiss-task.is-done .aiss-task-title strong { color: var(--text-soft); text-decoration: line-through; text-decoration-thickness: 1px; }
.aiss-task.is-deferred .aiss-task-number { border-style: dashed; }
.aiss-plan-foot { display: flex; align-items: center; justify-content: space-between; gap: 8px 12px; flex-wrap: wrap; padding-top: 13px; border-top: 1px solid var(--border); }
.aiss-plan-foot > span { color: var(--text-soft); font-size: 12px; line-height: 1.5; }
.aiss-live-status, .aiss-subject { flex: 0 0 auto; margin-left: auto; padding: 4px 7px; border-radius: 6px; background: var(--surface-subtle); color: var(--text-soft); font-size: 12px; white-space: nowrap; }
.aiss-timer { margin: 23px 0 16px; }
.aiss-timer-digits { font: 500 44px/1 var(--mono); letter-spacing: -.07em; }
.aiss-timer p { margin: 10px 0 0; color: var(--text-soft); font-size: 12.5px; line-height: 1.65; }
.aiss-timer-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.aiss-button { display: inline-flex; justify-content: center; align-items: center; gap: 8px; min-height: 39px; padding: 9px 12px; border: 1px solid var(--border); border-radius: 9px; color: var(--text); background: var(--surface); font-size: 13.5px !important; font-weight: 600 !important; line-height: 1.35; }
.aiss-button:hover:not(:disabled) { background: var(--surface-subtle); border-color: var(--border-strong); }
.aiss-button.is-primary { border-color: var(--accent-border); background: var(--accent); color: #28210d; }
.aiss-button.is-primary:hover:not(:disabled) { background: var(--accent-hover); border-color: var(--accent-border); }
.aiss-button.is-wide { width: 100%; }
.aiss-focus-total { display: flex; gap: 8px 15px; flex-wrap: wrap; margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--border); color: var(--text-soft); font-size: 12px; }
.aiss-focus-total strong, .aiss-focus-total b { color: var(--text); font-size: 13.5px; font-weight: 600; }
.aiss-small-note { margin: 10px 0 0; color: var(--text-soft); font-size: 12px; line-height: 1.6; }
.aiss-score { display: flex; flex-wrap: wrap; align-items: baseline; gap: 7px 14px; margin: 23px 0 10px; }
.aiss-score > strong { font: 600 38px/1.2 var(--mono); letter-spacing: -.05em; }
.aiss-score small { font-size: 14px; color: var(--text-soft); letter-spacing: normal; font-weight: 400; }
.aiss-score > span { color: var(--text-soft); font-size: 12.5px; line-height: 1.65; }
.aiss-score.is-pending > strong { font-family: inherit; font-size: 24px; font-weight: 650; line-height: 1.4; letter-spacing: -.025em; }
.aiss-estimate-focus { margin: 0 0 15px; color: var(--text-soft); font-size: 12.5px; line-height: 1.65; }
.aiss-estimate-focus strong { color: var(--text); font-weight: 600; }
.aiss-notice { margin: 12px 0 0; padding: 10px 13px; border: 1px solid var(--border); border-radius: 9px; color: var(--text-soft); background: var(--surface); font-size: 12.5px; line-height: 1.6; }
.aiss-notice[hidden] { display: none; }
@media (max-width: 1150px) and (min-width: 761px) {
  .aiss-layout { grid-template-columns: minmax(0, 1fr); }
  .aiss-side { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); align-items: start; }
}
@media (max-width: 760px) {
  .aiss-heading { align-items: start; gap: 12px; margin-bottom: 17px; }
  .aiss-heading-tools { flex-direction: column; align-items: flex-end; gap: 10px; }
  .aiss-course-count > strong { font-size: 20px; }
  .aiss-course-count > strong span { font-size: 13.5px; }
  .aiss-layout { grid-template-columns: minmax(0, 1fr); gap: 12px; }
  .aiss-side { gap: 12px; }
  .aiss-plan, .aiss-coach, .aiss-estimate { padding: 17px; border-radius: 14px; }
  .aiss-plan { padding-top: 15px; }
  .aiss-heading h2 { font-size: 24px; }
  .aiss-card-heading h3 { font-size: 15px; }
  .aiss-task { gap: 9px; }
  .aiss-task-number { width: 25px; height: 25px; flex-basis: 25px; }
}
@media (max-width: 390px) {
  .aiss-heading { flex-wrap: wrap; }
  .aiss-heading-tools { flex-direction: row; flex-wrap: wrap; align-items: center; justify-content: space-between; flex: 1 0 100%; gap: 12px; }
  .aiss-course-count { display: flex; align-items: baseline; gap: 9px; text-align: left; }
  .aiss-card-heading { gap: 8px; }
  .aiss-icon { width: 32px; height: 32px; flex-basis: 32px; border-radius: 9px; }
  .aiss-settings summary { font-size: 12px; padding-left: 4px; }
  .aiss-settings summary svg { display: none; }
  .aiss-task-title { flex-wrap: wrap; gap: 2px 8px; }
  .aiss-task-title strong { flex-basis: 100%; }
  .aiss-live-status { display: none; }
}