/* ============================================================
   Theme: cal.com (light canvas, friendly scheduler SaaS)
   Source spec: awesome-design-md / design-md / cal
   ============================================================ */

:root {
  /* Brand / primary (CTAは黒、アクセントは青) */
  --color-primary:         #111111;
  --color-primary-active:  #242424;
  --color-primary-disabled:#e5e7eb;
  --color-on-primary:      #ffffff;
  --color-brand-accent:    #3b82f6;
  --color-brand-accent-soft:#dbeafe;

  /* Text */
  --color-ink:        #111111;
  --color-body:       #374151;
  --color-muted:      #6b7280;
  --color-muted-soft: #898989;

  /* Surface */
  --color-canvas:        #ffffff;
  --color-surface-soft:  #f8f9fa;
  --color-surface-card:  #f5f5f5;
  --color-surface-strong:#e5e7eb;
  --color-surface-dark:  #101010;
  --color-on-dark:       #ffffff;

  /* Hairlines */
  --color-hairline:      #e5e7eb;
  --color-hairline-soft: #f3f4f6;

  /* Semantic */
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-error:   #ef4444;
  --color-success-bg: #d1fae5;
  --color-warning-bg: #fef3c7;
  --color-error-bg:   #fee2e2;

  /* Radius */
  --r-xs:   4px;
  --r-sm:   6px;
  --r-md:   8px;
  --r-lg:   12px;
  --r-xl:   16px;
  --r-pill: 9999px;

  /* Spacing */
  --s-xxs: 4px;
  --s-xs:  8px;
  --s-sm:  12px;
  --s-md:  16px;
  --s-lg:  24px;
  --s-xl:  32px;
  --s-xxl: 48px;

  /* Type families */
  --ff-display: "Cal Sans", "Inter", -apple-system, system-ui, "Segoe UI", "Hiragino Sans", "Yu Gothic", "Meiryo", sans-serif;
  --ff-text:    "Inter", -apple-system, system-ui, "Segoe UI", "Hiragino Sans", "Yu Gothic", "Meiryo", sans-serif;
  --ff-mono:    "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  /* Focus ring (cal: blue brand accent) */
  --focus-ring: 0 0 0 3px rgba(59, 130, 246, 0.35);

  /* Shadow (very subtle) */
  --shadow-card: 0 1px 2px rgba(17, 17, 17, 0.04);
  --shadow-pop:  0 4px 12px rgba(17, 17, 17, 0.08);
}

* { box-sizing: border-box; }

/* HTML hidden 属性を author CSS の display 指定で打ち消さないようにする */
[hidden] { display: none !important; }

/* 非同期処理中のリンク/ボタンに付与すると追加クリックを抑止する */
[data-busy="1"] { pointer-events: none; opacity: 0.6; }

html, body { height: 100%; }

body {
  font-family: var(--ff-text);
  font-size: 16px;
  line-height: 1.5;
  margin: 0;
  background: var(--color-canvas);
  color: var(--color-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ===== Header ===== */
header {
  background: var(--color-canvas);
  color: var(--color-ink);
  padding: 0 var(--s-lg);
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--color-hairline);
  font-family: var(--ff-display);
  font-weight: 600;
  letter-spacing: -0.3px;
  position: sticky;
  top: 0;
  z-index: 10;
}
header a {
  color: var(--color-body);
  text-decoration: none;
  margin-left: var(--s-md);
  font-family: var(--ff-text);
  font-size: 14px;
  font-weight: 500;
  transition: color 120ms ease;
}
header a:hover { color: var(--color-ink); }

/* ===== Multi-line ellipsis (table titles, etc.) ===== */
.title-cell { max-width: 460px; }
.title-clamp {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.4;
  word-break: break-word;
  overflow-wrap: anywhere;
}

/* ===== Small button-shaped anchors (ghost / danger) ===== */
.btn-sm-ghost,
.btn-sm-danger {
  display: inline-flex;
  align-items: center;
  height: 28px;
  padding: 0 12px;
  font-family: var(--ff-text);
  font-size: 12px;
  font-weight: 600;
  line-height: 1;
  border: 1px solid var(--color-hairline);
  border-radius: var(--r-sm);
  background: var(--color-canvas);
  text-decoration: none;
  white-space: nowrap;
  transition: background 120ms ease, border-color 120ms ease, color 120ms ease;
}
.btn-sm-ghost { color: var(--color-ink); }
.btn-sm-ghost:hover {
  background: var(--color-surface-soft);
  border-color: var(--color-surface-strong);
  color: var(--color-ink);
  text-decoration: none;
}
.btn-sm-danger { color: var(--color-error); }
.btn-sm-danger:hover {
  background: var(--color-error-bg);
  border-color: var(--color-error);
  color: var(--color-error);
  text-decoration: none;
}

/* header ナビ内の小ボタンは margin-left を消して右寄せフローに従う */
header a.btn-sm-ghost,
header a.btn-sm-danger { margin-left: var(--s-sm); }

/* ===== Page head (title + secondary action like delete link) ===== */
.page-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--s-md);
}
.page-head h1 { margin-bottom: var(--s-xs); }
.page-head .title-wrap {
  display: flex;
  align-items: baseline;
  gap: var(--s-xs);
  flex: 1 1 auto;
  min-width: 0;
}
.page-head-actions {
  display: inline-flex;
  align-items: baseline;
  gap: var(--s-xs);
  white-space: nowrap;
}

/* ===== Inline edit (編集 トリガー + 変更/追加 + キャンセル) ===== */
.btn-inline-edit {
  display: inline-flex;
  align-items: center;
  height: 24px;
  padding: 0 10px;
  font-family: var(--ff-text);
  font-size: 12px;
  font-weight: 600;
  line-height: 1;
  color: var(--color-body);
  background: var(--color-canvas);
  border: 1px solid var(--color-hairline);
  border-radius: var(--r-sm);
  cursor: pointer;
  margin-left: var(--s-xs);
  transition: background 120ms ease, border-color 120ms ease, color 120ms ease;
}
.btn-inline-edit:hover {
  background: var(--color-surface-soft);
  border-color: var(--color-surface-strong);
  color: var(--color-ink);
}
.inline-editable { cursor: pointer; }
.inline-editable:hover { text-decoration: underline dotted; }
.inline-edit-wrap {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.inline-edit-input {
  font-family: var(--ff-text);
  font-size: 14px;
  padding: 4px 8px;
  height: 32px;
  min-width: 200px;
  border: 1px solid var(--color-brand-accent);
  border-radius: var(--r-sm);
  outline: none;
}
.inline-ok,
.inline-cancel {
  height: 32px;
  padding: 0 14px;
  font-family: var(--ff-text);
  font-size: 13px;
  font-weight: 600;
  border-radius: var(--r-sm);
  cursor: pointer;
  border: 1px solid var(--color-hairline);
  background: var(--color-canvas);
  line-height: 1;
}
.inline-ok {
  background: var(--color-primary);
  color: var(--color-on-primary);
  border-color: var(--color-primary);
}
.inline-ok:hover {
  background: var(--color-primary-active);
  border-color: var(--color-primary-active);
}
.inline-cancel { color: var(--color-body); }
.inline-cancel:hover {
  background: var(--color-surface-soft);
  color: var(--color-ink);
}
.inline-err {
  color: var(--color-error);
  font-size: 12px;
  margin-left: 4px;
}

/* ===== Participants bar (chips + add member) ===== */
.participants-bar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--s-xs);
  margin: var(--s-md) 0;
}
.participants-label {
  font-size: 13px;
  color: var(--color-muted);
  font-weight: 600;
  margin-right: var(--s-xs);
}
.participants-chips {
  display: inline-flex;
  flex-wrap: wrap;
  gap: var(--s-xs);
}
.chip {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  height: 26px;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-ink);
  background: var(--color-surface-card);
  border: 1px solid var(--color-hairline);
  border-radius: var(--r-pill);
  white-space: nowrap;
}
.chip-btn {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  height: 26px;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-ink);
  background: var(--color-canvas);
  border: 1px dashed var(--color-hairline);
  border-radius: var(--r-pill);
  cursor: pointer;
  font-family: var(--ff-text);
}
.chip-btn:hover {
  background: var(--color-surface-soft);
  border-style: solid;
}
.link-danger {
  color: var(--color-error);
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
}
.link-danger:hover {
  text-decoration: underline;
  color: var(--color-error);
}

/* ===== Page action bar (primary CTA above content) ===== */
.page-actions {
  display: flex;
  justify-content: flex-start;
  align-items: center;
  gap: var(--s-sm);
  margin: 0 0 var(--s-md);
}
a.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 40px;
  padding: 0 18px;
  background: var(--color-primary);
  color: var(--color-on-primary);
  border: 1px solid var(--color-primary);
  border-radius: var(--r-md);
  font-family: var(--ff-text);
  font-size: 14px;
  font-weight: 600;
  line-height: 1;
  text-decoration: none;
  transition: background 120ms ease, border-color 120ms ease, box-shadow 120ms ease, transform 80ms ease;
}
a.btn-primary:hover {
  background: var(--color-primary-active);
  border-color: var(--color-primary-active);
  color: var(--color-on-primary);
  text-decoration: none;
}
a.btn-primary:active { transform: translateY(1px); }
a.btn-primary:focus-visible { box-shadow: var(--focus-ring); }
.btn-primary-plus {
  font-size: 18px;
  font-weight: 600;
  line-height: 1;
  margin-top: -1px;
}

/* ===== Brand / logo (header left) ===== */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--ff-display);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.4px;
  color: var(--color-ink);
  line-height: 1;
}
header a.brand {
  margin-left: -10px;
  padding: 6px 10px;
  border-radius: var(--r-md);
  color: var(--color-ink);
  font-size: 17px;
  font-weight: 700;
  font-family: var(--ff-display);
  transition: background 120ms ease;
}
header a.brand:hover {
  background: var(--color-surface-soft);
  color: var(--color-ink);
  text-decoration: none;
}
.brand-mark {
  width: 28px;
  height: 28px;
  background: var(--color-primary);
  color: var(--color-on-primary);
  border-radius: var(--r-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
}
.brand-mark svg { display: block; }
.brand-name { white-space: nowrap; }

/* ===== Main / typography ===== */
main {
  max-width: 980px;
  margin: var(--s-xl) auto var(--s-xxl);
  padding: 0 var(--s-md);
}
main.wide { max-width: 1400px; }
main.narrow { max-width: 520px; }

h1 {
  font-family: var(--ff-display);
  font-size: 36px;
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-top: 0;
  margin-bottom: var(--s-md);
  color: var(--color-ink);
  word-break: break-word;
  overflow-wrap: anywhere;
}
h2 {
  font-family: var(--ff-text);
  font-size: 22px;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.3px;
  margin-top: var(--s-xl);
  margin-bottom: var(--s-md);
  padding-bottom: var(--s-xs);
  border-bottom: 1px solid var(--color-hairline);
  color: var(--color-ink);
}
p { margin: var(--s-sm) 0; }

a { color: var(--color-brand-accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ===== Form controls ===== */
input[type=text],
input[type=email],
input[type=tel],
input[type=number],
input[type=password],
select,
textarea {
  font-family: var(--ff-text);
  font-size: 14px;
  padding: 10px 14px;
  background: var(--color-canvas);
  color: var(--color-ink);
  border: 1px solid var(--color-hairline);
  border-radius: var(--r-md);
  min-width: 220px;
  height: 40px;
  outline: none;
  transition: border-color 120ms ease, box-shadow 120ms ease;
}
textarea {
  height: auto;
  line-height: 1.5;
  resize: vertical;
}
input[type=text]:focus,
input[type=email]:focus,
input[type=tel]:focus,
input[type=number]:focus,
input[type=password]:focus,
select:focus,
textarea:focus {
  border-color: var(--color-brand-accent);
  box-shadow: var(--focus-ring);
}
input[type=checkbox] {
  accent-color: var(--color-brand-accent);
  width: 16px;
  height: 16px;
}
::placeholder { color: var(--color-muted); }

/* ===== Buttons ===== */
button {
  font-family: var(--ff-text);
  font-size: 14px;
  font-weight: 600;
  line-height: 1;
  padding: 12px 20px;
  height: 40px;
  background: var(--color-primary);
  color: var(--color-on-primary);
  border: 1px solid var(--color-primary);
  border-radius: var(--r-md);
  cursor: pointer;
  transition: background 120ms ease, border-color 120ms ease, box-shadow 120ms ease, transform 80ms ease;
}
button:hover {
  background: var(--color-primary-active);
  border-color: var(--color-primary-active);
}
button:active {
  transform: translateY(1px);
}
button:focus-visible {
  box-shadow: var(--focus-ring);
}
button:disabled {
  background: var(--color-primary-disabled);
  border-color: var(--color-primary-disabled);
  color: var(--color-muted);
  cursor: not-allowed;
}
button.ghost {
  background: var(--color-canvas);
  color: var(--color-ink);
  border: 1px solid var(--color-hairline);
}
button.ghost:hover {
  background: var(--color-surface-soft);
  border-color: var(--color-surface-strong);
}
button.danger {
  background: var(--color-canvas);
  color: var(--color-error);
  border: 1px solid var(--color-hairline);
}
button.danger:hover {
  background: var(--color-error-bg);
  border-color: var(--color-error);
}

/* ===== Tables ===== */
table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  background: var(--color-canvas);
  border: 1px solid var(--color-hairline);
  border-radius: var(--r-lg);
  overflow: hidden;
  font-size: 14px;
  box-shadow: var(--shadow-card);
}
th, td {
  border-bottom: 1px solid var(--color-hairline);
  padding: 12px 16px;
  text-align: left;
  vertical-align: top;
  word-break: break-word;
  overflow-wrap: anywhere;
  color: var(--color-body);
}
tr:last-child td { border-bottom: none; }
th {
  background: var(--color-surface-soft);
  font-family: var(--ff-text);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0;
  color: var(--color-muted);
}
tbody tr:hover td { background: var(--color-surface-soft); }
td.nowrap {
  white-space: nowrap;
  word-break: keep-all;
  overflow-wrap: normal;
  color: var(--color-muted);
}

/* ===== Badges (status pills) ===== */
.badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: var(--r-pill);
  font-size: 13px;
  font-weight: 500;
  line-height: 1.4;
  background: var(--color-surface-card);
  color: var(--color-ink);
  border: 1px solid transparent;
}
.badge.warn {
  background: var(--color-warning-bg);
  color: #92400e;
}
.badge.ok {
  background: var(--color-success-bg);
  color: #065f46;
}

/* ===== Layout helpers ===== */
.row {
  display: flex;
  gap: var(--s-sm);
  align-items: center;
  margin: var(--s-xs) 0;
}
.row label {
  color: var(--color-body);
  font-size: 14px;
}
.field {
  display: block;
  margin: var(--s-md) 0;
}
.field label {
  display: block;
  margin-bottom: var(--s-xs);
  font-weight: 600;
  font-size: 14px;
  color: var(--color-ink);
}
.field textarea,
.field input[type=text],
.field input[type=email],
.field input[type=tel],
.field input[type=password] {
  width: 100%;
  min-width: 0;
}

.form-error {
  color: var(--color-error);
  margin: var(--s-xs) 0;
  min-height: 18px;
  font-size: 13px;
}
.muted {
  color: var(--color-muted);
  font-weight: normal;
}

/* ===== Availability / timeline grid ===== */
.availability-wrap {
  display: flex;
  gap: var(--s-md);
  overflow-x: auto;
  padding-bottom: var(--s-xs);
  align-items: flex-start;
}
.user-block {
  flex: 0 0 auto;
  border: 1px solid var(--color-hairline);
  background: var(--color-canvas);
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.user-block-header {
  padding: var(--s-xs) var(--s-sm);
  background: var(--color-surface-soft);
  color: var(--color-ink);
  font-weight: 600;
  font-size: 13px;
  text-align: center;
  border-bottom: 1px solid var(--color-hairline);
  white-space: nowrap;
}
.user-block.self .user-block-header {
  background: var(--color-brand-accent);
  color: var(--color-on-primary);
}

.grid-table {
  font-size: 12px;
  border: none;
  background: transparent;
  border-radius: 0;
  box-shadow: none;
}
.grid-table th,
.grid-table td {
  padding: 0;
  border: 1px solid var(--color-hairline);
  letter-spacing: 0;
  background: transparent;
}
.grid-table .time-col {
  background: var(--color-surface-soft);
  padding: 2px 6px;
  text-align: right;
  font-weight: 500;
  color: var(--color-muted);
  width: 50px;
  font-family: var(--ff-mono);
  font-size: 12px;
}
.grid-table .day-head {
  background: var(--color-surface-card);
  padding: 6px 6px;
  text-align: center;
  font-weight: 600;
  color: var(--color-ink);
  font-size: 12px;
}

.grid-cell {
  width: 48px;
  height: 26px;
  text-align: center;
  user-select: none;
  background: var(--color-canvas);
  transition: background 80ms ease;
}
.grid-cell.editable { cursor: pointer; }
.grid-cell.editable:hover { background: var(--color-brand-accent-soft); }
.grid-cell.selected {
  background: var(--color-brand-accent);
  color: var(--color-on-primary);
}
.grid-cell.editable.selected:hover { background: #2563eb; }
.grid-cell.other-have {
  background: var(--color-brand-accent-soft);
}
.grid-cell.preview-add {
  background: #93c5fd;
  color: var(--color-ink);
}
.grid-cell.preview-remove {
  background: var(--color-surface-strong);
  color: var(--color-muted);
}
.grid-cell.muted-out {
  background: var(--color-hairline-soft);
  color: #d1d5db;
  cursor: default;
}

/* ===== Availability compact mode (5 人以上で密度を上げる) ===== */
.availability-wrap.compact { gap: var(--s-xs); }
.availability-wrap.compact .grid-cell { width: 32px; height: 20px; }
.availability-wrap.compact .grid-table .time-col {
  width: 38px;
  font-size: 11px;
  padding: 1px 4px;
}
.availability-wrap.compact .grid-table .day-head {
  font-size: 11px;
  padding: 4px 4px;
}
.availability-wrap.compact .user-block-header {
  font-size: 12px;
  padding: 4px 6px;
}

/* ===== Help / callout ===== */
.help-text {
  background: var(--color-surface-soft);
  border: 1px solid var(--color-hairline);
  border-left: 3px solid var(--color-brand-accent);
  padding: var(--s-sm) var(--s-md);
  border-radius: var(--r-md);
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-body);
  margin: var(--s-sm) 0;
}
.help-text b { color: var(--color-ink); font-weight: 600; }

/* ===== Scrollbar (subtle) ===== */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--color-canvas); }
::-webkit-scrollbar-thumb {
  background: var(--color-surface-strong);
  border-radius: var(--r-pill);
  border: 2px solid var(--color-canvas);
}
::-webkit-scrollbar-thumb:hover { background: var(--color-muted-soft); }