/* Premium centered sheets (iOS alert card) — all viewports */

.sheet-backdrop {
  position: fixed !important;
  inset: 0 !important;
  width: 100% !important;
  height: 100% !important;
  height: 100dvh !important;
  margin: 0 !important;
  border: none !important;
  background: rgba(0, 0, 0, 0.38) !important;
  backdrop-filter: blur(14px) saturate(1.15);
  -webkit-backdrop-filter: blur(14px) saturate(1.15);
  opacity: 1 !important;
  transition: opacity 0.28s ease !important;
}

html.dark .sheet-backdrop {
  background: rgba(0, 0, 0, 0.55) !important;
}

.sheet-backdrop.sheet-backdrop-in {
  opacity: 1 !important;
}

.sheet-modal.stud-sheet-premium {
  --sheet-radius: 20px;
  --sheet-width: min(100% - 32px, 400px);
  position: fixed !important;
  inset: 0 !important;
  width: 100% !important;
  height: 100% !important;
  height: 100dvh !important;
  max-height: none !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  padding: max(16px, env(safe-area-inset-top)) 16px max(16px, env(safe-area-inset-bottom)) !important;
  box-sizing: border-box !important;
  background: transparent !important;
  pointer-events: none;
  overflow: visible !important;
  z-index: 13500 !important;
}

.sheet-modal.stud-sheet-premium .sheet-modal-inner {
  pointer-events: auto;
  position: relative !important;
  left: auto !important;
  right: auto !important;
  top: auto !important;
  bottom: auto !important;
  width: var(--sheet-width) !important;
  max-width: 400px !important;
  margin: 0 auto !important;
  max-height: min(82dvh, 620px) !important;
  display: flex;
  flex-direction: column;
  padding: 0;
  background: var(--color-elevated);
  border-radius: var(--sheet-radius) !important;
  overflow: hidden;
  box-shadow:
    0 0 0 1px rgba(0, 0, 0, 0.06),
    0 24px 64px rgba(15, 23, 42, 0.22);
  transform: scale(0.94) translate3d(0, 8px, 0) !important;
  opacity: 0;
  transition:
    transform 0.38s cubic-bezier(0.32, 0.72, 0, 1),
    opacity 0.28s ease !important;
}

html.dark .sheet-modal.stud-sheet-premium .sheet-modal-inner {
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.08),
    0 28px 72px rgba(0, 0, 0, 0.55);
}

.sheet-modal.stud-sheet-premium.modal-in .sheet-modal-inner,
.sheet-modal.stud-sheet-premium.sheet-modal-in .sheet-modal-inner {
  transform: scale(1) translate3d(0, 0, 0) !important;
  opacity: 1;
}

.sheet-modal.stud-sheet-premium.modal-out .sheet-modal-inner,
.sheet-modal.stud-sheet-premium.sheet-modal-out .sheet-modal-inner {
  transform: scale(0.96) translate3d(0, 12px, 0) !important;
  opacity: 0;
}

.sheet-modal.stud-sheet-premium .swipe-handler {
  display: none;
}

.stud-sheet-head {
  flex-shrink: 0;
  padding: 16px 20px 12px;
  text-align: center;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-elevated);
}

html.dark .stud-sheet-head {
  background: var(--color-elevated);
}

.stud-sheet-head-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 10px;
  border-radius: var(--radius-md, 12px);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(10, 77, 140, 0.08);
  color: var(--color-brand);
}

.sheet-modal.stud-sheet-premium.modal-in .stud-sheet-head-icon {
  animation: none;
}

.stud-sheet-head-icon .icon {
  font-size: 28px;
}

.stud-sheet-title {
  margin: 0;
  font-size: 1.22rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

.stud-sheet-sub {
  margin: 6px 0 0;
  font-size: 0.88rem;
  line-height: 1.45;
  color: var(--color-text-muted);
}

.stud-sheet-body {
  flex: 1;
  min-height: 0;
  overflow: auto;
  -webkit-overflow-scrolling: touch;
  padding: 18px 20px;
}

.stud-sheet-foot {
  flex-shrink: 0;
  padding: 12px 20px calc(16px + env(safe-area-inset-bottom, 0px));
  border-top: 1px solid var(--color-border);
  background: var(--color-elevated);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.stud-sheet-foot .button-large {
  border-radius: var(--radius-md, 12px);
  font-weight: 600;
  min-height: var(--btn-height, 44px);
  letter-spacing: -0.01em;
  width: 100%;
}

.stud-sheet-foot .button-large.stud-btn {
  display: flex;
}

.stud-sheet-close {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 3;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-surface);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  transition: transform 0.18s ease, background 0.15s ease;
}

.stud-sheet-close:active {
  transform: scale(0.92);
}

.stud-sheet-close .icon {
  font-size: 16px;
}

.stud-field-card {
  border-radius: var(--radius-card, 12px);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  overflow: hidden;
  margin-bottom: 14px;
  box-shadow: none;
  transition: border-color 0.2s ease;
}

.stud-field-card--flush {
  margin-bottom: 12px;
}

.stud-page-content .block > .stud-field-card--flush {
  margin-left: 0;
  margin-right: 0;
}

.stud-sheet-body .stud-field-card:last-child {
  margin-bottom: 0;
}

.stud-field-card:focus-within {
  border-color: rgba(10, 77, 140, 0.35);
  box-shadow: 0 0 0 3px rgba(10, 77, 140, 0.1);
}

html.dark .stud-field-card:focus-within {
  border-color: rgba(110, 181, 255, 0.4);
  box-shadow: 0 0 0 3px rgba(110, 181, 255, 0.12);
}

.stud-field-card .item-content.item-input {
  padding: 0;
  min-height: auto;
}

.stud-field-card .item-inner {
  width: 100%;
  padding: 12px 16px;
  box-sizing: border-box;
}

.stud-field-card .item-input-wrap {
  width: 100%;
}

.stud-field-card .item-input-wrap input,
.stud-field-card .item-input-wrap textarea,
.stud-field-card .item-input-wrap select {
  display: block;
  width: 100%;
  box-sizing: border-box;
  font-size: 1rem;
  min-height: 44px;
}

.stud-field-card .item-input-wrap textarea {
  min-height: 120px;
  resize: vertical;
}

.stud-sch-suggest-premium {
  margin: 8px 0 0;
  padding: 0;
  list-style: none;
  border-radius: 12px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  max-height: min(36dvh, 240px);
  overflow: auto;
  box-shadow: var(--shadow-soft);
}

.stud-sch-suggest-premium li {
  border-bottom: 1px solid var(--color-border);
}

.stud-sch-suggest-premium li:last-child {
  border-bottom: none;
}

.stud-sch-suggest-premium .item-content,
.stud-sch-suggest-premium .item-link.item-content {
  min-height: 46px;
  transition: background 0.15s ease;
}

.stud-sch-suggest-premium .item-inner {
  padding: 11px 16px;
  min-width: 0;
}

.stud-sch-suggest-premium .item-title {
  font-size: 0.94rem;
  font-weight: 600;
  line-height: 1.35;
}

.stud-sch-suggest-premium .item-content:active,
.stud-sch-suggest-premium .item-link.item-content:active {
  background: rgba(10, 77, 140, 0.06);
}

.stud-sheet-hint {
  display: none;
}

/* Schedule search sheet — compact, no dead space */
.stud-sheet-schedule .sheet-modal-inner.stud-sheet-schedule-inner {
  width: min(100% - 28px, 400px) !important;
  max-height: min(78dvh, 440px) !important;
  height: auto;
}

.stud-sheet-schedule .stud-sheet-toolbar {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 8px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-elevated);
}

.stud-sheet-schedule .stud-sheet-toolbar-back {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 6px 4px 6px 0;
  margin: 0;
  border: none;
  background: none;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-brand);
  cursor: pointer;
  justify-self: start;
  white-space: nowrap;
}

.stud-sheet-schedule .stud-sheet-toolbar-back .icon {
  font-size: 1.15rem;
  margin-left: -4px;
}

.stud-sheet-schedule .stud-sheet-toolbar-title {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  text-align: center;
  color: var(--color-text);
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.stud-sheet-schedule .stud-sheet-toolbar-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  margin: 0;
  padding: 0;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-muted);
  justify-self: end;
}

.stud-sheet-schedule .stud-sheet-toolbar-close .icon {
  font-size: 16px;
}

.stud-sheet-schedule .stud-sheet-schedule-body {
  flex: 0 1 auto;
  padding: 16px 18px 12px;
  overflow: visible;
}

.stud-sheet-schedule .stud-sheet-search {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 14px;
  min-height: 52px;
  border-radius: 14px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.04);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.stud-sheet-schedule .stud-sheet-search:focus-within {
  border-color: rgba(10, 77, 140, 0.45);
  box-shadow:
    inset 0 1px 2px rgba(0, 0, 0, 0.03),
    0 0 0 3px rgba(10, 77, 140, 0.12);
}

html.dark .stud-sheet-schedule .stud-sheet-search:focus-within {
  border-color: rgba(110, 181, 255, 0.5);
  box-shadow:
    inset 0 1px 2px rgba(0, 0, 0, 0.15),
    0 0 0 3px rgba(110, 181, 255, 0.14);
}

.stud-sheet-schedule .stud-sheet-search-icon {
  flex-shrink: 0;
  font-size: 22px;
  color: var(--color-brand);
  opacity: 0.9;
}

.stud-sheet-schedule .stud-sheet-search-input {
  flex: 1;
  min-width: 0;
  border: none;
  background: transparent;
  padding: 14px 0;
  margin: 0;
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--color-text);
  outline: none;
  box-shadow: none;
  min-height: 0;
}

.stud-sheet-schedule .stud-sheet-search-input::placeholder {
  color: var(--color-text-muted);
  font-weight: 400;
}

.stud-sheet-schedule .stud-sheet-suggest {
  margin: 8px 0 0;
  max-height: min(36dvh, 220px);
  border-radius: 12px;
  overflow: hidden;
}

.stud-sheet-schedule .stud-sheet-suggest .item-content {
  min-height: 44px;
}

.stud-sheet-schedule .stud-sheet-suggest .item-title {
  font-size: 0.95rem;
  font-weight: 600;
}

.stud-sheet-schedule .stud-sheet-schedule-foot {
  flex-shrink: 0;
  padding: 12px 18px calc(14px + env(safe-area-inset-bottom, 0px));
  border-top: 1px solid var(--color-border);
}

.stud-sheet-schedule .stud-sheet-schedule-foot .button-large {
  width: 100%;
  margin: 0;
  min-height: 48px;
  border-radius: 14px;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
}

.stud-field-card .item-input-wrap input,
.stud-field-card .item-input-wrap select,
.stud-field-card .item-input-wrap textarea {
  min-height: 44px;
  width: 100%;
  box-sizing: border-box;
  text-align: left;
  border-radius: 14px 14px 6px 14px;
  border: 1px solid var(--color-border);
  background: rgba(255, 255, 255, 0.55);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 10px 12px;
  box-shadow: inset 0 1px 2px rgba(15, 23, 42, 0.04);
}

html.dark .stud-field-card .item-input-wrap input,
html.dark .stud-field-card .item-input-wrap select,
html.dark .stud-field-card .item-input-wrap textarea {
  background: rgba(18, 24, 32, 0.55);
}

.stud-field-card .item-input-wrap input:focus,
.stud-field-card .item-input-wrap select:focus,
.stud-field-card .item-input-wrap textarea:focus {
  outline: none;
  border-color: rgba(10, 77, 140, 0.45);
  box-shadow: 0 0 0 3px rgba(10, 77, 140, 0.12);
}

.stud-sch-suggest-premium {
  list-style: none;
  margin: 0;
  padding: 6px;
  border-radius: 14px;
  background: var(--color-elevated);
  border: 1px solid var(--color-border);
  box-shadow: 0 12px 32px rgba(15, 23, 42, 0.12);
}