.su-wrap { max-width: 860px; margin: 0 auto; padding: 96px 16px 48px; color: var(--text-primary); box-sizing: border-box; }
.su-wrap { --su-ok: var(--color-success, #22c55e); --su-warn: var(--color-warning, #f59e0b); --su-err: var(--color-danger-hover, #f87171);
  --su-mine: rgba(var(--color-primary-rgb, 99, 102, 241), 0.14); }
:root[data-theme="light"] .su-wrap { --su-ok: #15803d; --su-warn: #b45309; --su-err: #b91c1c; --su-mine: rgba(79, 70, 229, 0.08); }
.su-wrap *, .su-wrap *::before, .su-wrap *::after { box-sizing: border-box; }
.su-wrap [hidden] { display: none !important; }
.su-intro h1 { font-size: clamp(1.6rem, 4vw, 2.4rem); margin: 0 0 8px; }
.su-intro p { color: var(--text-secondary); margin: 0 0 16px; max-width: 70ch; }
.su-stack { display: grid; grid-template-columns: minmax(0, 1fr); }
.su-card { background: var(--bg-secondary); border: 1px solid var(--border-color); border-radius: 12px; padding: 20px 16px; margin: 16px 0; display: grid; grid-template-columns: minmax(0, 1fr); gap: 10px; min-width: 0; }
.su-card h2 { font-size: 1.2rem; margin: 0; }
.su-title { overflow-wrap: anywhere; }
.su-h3 { font-size: 1.05rem; margin: 0; }
.su-h4 { font-size: 0.95rem; margin: 10px 0 0; }
.su-desc { margin: 0; white-space: pre-wrap; overflow-wrap: anywhere; }
.su-desc:empty { display: none; }
.su-label { font-weight: 600; font-size: 0.95rem; }
.su-col { display: grid; grid-template-columns: minmax(0, 1fr); gap: 6px; min-width: 0; }
.su-field { width: 100%; max-width: 100%; min-width: 0; padding: 10px 12px; border-radius: 8px; border: 1px solid var(--border-color); background: var(--bg-primary); color: var(--text-primary); font: inherit; }
/* iOS Safari zooms into any field under 16px: keep every input at 16px or more. */
.su-wrap input, .su-wrap select, .su-wrap textarea { font-size: max(16px, 1rem); }
.su-field:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 1px; }
.su-field::-webkit-calendar-picker-indicator { filter: invert(0.8); }
:root[data-theme="light"] .su-field::-webkit-calendar-picker-indicator { filter: none; }
.su-textarea { resize: vertical; min-height: 4em; line-height: 1.45; }
.su-mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 0.9rem; }
.su-hint { color: var(--text-secondary); font-size: 0.9rem; margin: 0; overflow-wrap: anywhere; }
.su-hint:empty { display: none; }
.su-warn { color: var(--su-warn); font-weight: 600; margin: 0; }
.su-msg { font-size: 1.05rem; font-weight: 600; margin: 0; overflow-wrap: anywhere; }
.su-msg:empty { display: none; }
.su-error { color: var(--su-err); margin: 0; overflow-wrap: anywhere; }
.su-error:empty { display: none; }
.su-banner { font-weight: 600; padding: 10px 12px; border: 1px solid var(--su-err); border-radius: 10px; margin: 8px 0 0; }
.su-closed { margin: 8px 0 0; padding: 10px 12px; border-radius: 10px; border: 1px solid var(--su-warn); color: var(--su-warn); font-weight: 600; }
.su-actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.su-manage { margin: 4px 0 0; }
.su-check { display: flex; gap: 8px; align-items: flex-start; cursor: pointer; }
.su-check input { width: 18px; height: 18px; margin: 2px 0 0; accent-color: var(--color-primary); flex: 0 0 auto; }
.su-check:has(input:disabled) { cursor: not-allowed; opacity: 0.7; }
.su-btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; border: 1px solid var(--border-color); background: transparent; color: var(--text-primary); border-radius: 10px; padding: 9px 16px; cursor: pointer; font: inherit; text-decoration: none; line-height: 1.2; min-height: 40px; white-space: nowrap; }
.su-btn:hover { border-color: var(--color-primary); }
.su-btn--primary { background: var(--color-primary); border-color: var(--color-primary); color: #fff; font-weight: 600; }
.su-btn--primary:hover { background: var(--color-primary-active, #4f46e5); }
.su-btn--danger { border-color: var(--su-err); color: var(--su-err); }
.su-btn--sm { padding: 4px 10px; min-height: 32px; font-size: 0.85rem; border-radius: 8px; }
.su-btn:disabled { opacity: 0.45; cursor: not-allowed; }
.su-btn:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }
.su-copyrow { display: flex; gap: 8px; min-width: 0; }
.su-copyrow .su-field { flex: 1 1 auto; }
.su-confirm { display: grid; gap: 8px; padding: 12px; border: 1px solid var(--su-err); border-radius: 10px; }
.su-x { border: 1px solid var(--border-color); background: transparent; color: var(--text-primary); cursor: pointer; font-size: 1.05rem; line-height: 1; width: 36px; height: 36px; border-radius: 8px; flex: 0 0 auto; }
.su-x:hover:not(:disabled) { border-color: var(--color-primary); }
.su-x:disabled { opacity: 0.35; cursor: default; }
.su-x:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 1px; }

/* slot editor */
.su-eds { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.su-ed { border: 1px solid var(--border-color); border-radius: 10px; padding: 10px 12px; background: var(--bg-primary); display: grid; gap: 8px; min-width: 0; }
.su-ed-head { display: flex; align-items: center; gap: 6px; }
.su-ed-n { font-weight: 600; flex: 1 1 auto; }
.su-ed-f { display: grid; gap: 2px; font-size: 0.8rem; color: var(--text-secondary); min-width: 0; }
.su-ed-f .su-field { font-size: max(16px, 1rem); color: var(--text-primary); padding: 8px 10px; }
.su-ed-row { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr) minmax(0, 1fr) minmax(0, 0.8fr); gap: 8px; }
@media (max-width: 600px) { .su-ed-row { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); } }

/* sheet */
.su-groups { display: grid; grid-template-columns: minmax(0, 1fr); }
.su-group { gap: 8px; }
.su-group-head { font-size: 1.05rem; margin: 0; }
.su-slots { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.su-slot { border: 1px solid var(--border-color); border-radius: 10px; padding: 10px 12px; background: var(--bg-primary); display: grid; gap: 8px; min-width: 0; }
.su-slot.is-full { opacity: 0.92; }
.su-slot-head { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px; min-width: 0; }
.su-slot-label { font-weight: 600; overflow-wrap: anywhere; min-width: 0; flex: 1 1 12em; }
.su-slot-time { color: var(--text-secondary); font-variant-numeric: tabular-nums; white-space: nowrap; }
.su-slot-count { font-size: 0.9rem; color: var(--text-secondary); display: inline-flex; gap: 8px; align-items: center; white-space: nowrap; }
.su-badge { display: inline-block; font-size: 0.72rem; font-weight: 700; padding: 2px 8px; border-radius: 999px; background: var(--su-ok); color: #fff; }
:root[data-theme="dark"] .su-badge { color: #052e16; }
.su-entries { list-style: none; margin: 0; padding: 0; display: grid; gap: 4px; }
.su-entry { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 10px; padding: 6px 8px; border-top: 1px solid var(--border-color); min-width: 0; }
.su-entry.is-mine { background: var(--su-mine); border-radius: 8px; border-top-color: transparent; }
.su-entry-name { font-weight: 600; overflow-wrap: anywhere; min-width: 0; unicode-bidi: isolate; }
.su-entry-note { color: var(--text-secondary); font-size: 0.9rem; overflow-wrap: anywhere; min-width: 0; flex: 1 1 10em; unicode-bidi: isolate; }
.su-entry-actions { gap: 6px; flex: 1 1 100%; }
.su-join { display: grid; gap: 8px; padding: 10px; border: 1px dashed var(--color-primary); border-radius: 10px; min-width: 0; flex: 1 1 100%; }
.su-join-title { margin: 0; font-weight: 600; overflow-wrap: anywhere; }

/* print view (admin) */
.su-print { display: grid; gap: 12px; padding-top: 8px; }
.su-ptable { width: 100%; border-collapse: collapse; margin: 0 0 8px; table-layout: fixed; break-inside: avoid; }
.su-ptable caption { text-align: left; font-weight: 700; padding: 6px 0; overflow-wrap: anywhere; }
.su-pwhen { font-weight: 500; color: var(--text-secondary); margin-left: 10px; }
.su-ptable th, .su-ptable td { border: 1px solid var(--border-color); padding: 8px; text-align: left; overflow-wrap: anywhere; }
.su-ptable td { height: 2.4em; }
.su-ptable .su-pno { width: 3em; text-align: center; color: var(--text-secondary); }

.img-foot { text-align: center; padding: 24px 16px; font-size: 0.875rem; }
.img-foot a { color: var(--text-secondary); }
@media (max-width: 480px) {
  .su-copyrow { flex-direction: column; }
  .su-actions .su-btn, .su-copyrow .su-btn { width: 100%; }
  .su-entry .su-btn, .su-slot .su-actions .su-btn--sm { width: auto; }
}

.sr-only { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
[tabindex="-1"]:focus { outline: none; }

@media print {
  .nav, .img-foot, .su-noprint, #srStatus { display: none !important; }
  html, body { background: #fff !important; color: #000 !important; }
  .su-wrap { padding: 0; max-width: none; color: #000; }
  .su-print .su-title, .su-ptable caption, .su-ptable th, .su-ptable td { color: #000; }
  .su-ptable th, .su-ptable td { border-color: #555; }
  .su-pwhen, .su-print .su-hint, .su-ptable .su-pno { color: #333; }
}