@import url('https://fonts.googleapis.com/css2?family=Barlow+Condensed:wght@500;700&family=Noto+Sans+JP:wght@400;500;700;900&family=Zen+Kaku+Gothic+New:wght@400;500;700&family=Zen+Old+Mincho:wght@500;700&display=swap');

:root {
  --fs-bg: #f7fbff;
  --fs-paper: #ffffff;
  --fs-border: #dbe7f3;
  --fs-text: #1e293b;
  --fs-muted: #64748b;
  --fs-accent: #0ea5e9;
  --fs-accent-soft: #e0f2fe;
  --fs-focus: rgba(14, 165, 233, 0.22);
  --fs-danger: #e11d48;
}

body.formation-page {
  min-height: 100vh;
  color: var(--fs-text);
  font-family: 'Noto Sans JP', 'Zen Kaku Gothic New', sans-serif;
  background:
    radial-gradient(circle at 10% 0%, rgba(14, 165, 233, 0.13), transparent 30%),
    radial-gradient(circle at 100% 20%, rgba(2, 132, 199, 0.07), transparent 35%),
    linear-gradient(180deg, #f8fcff 0%, #f1f6fb 100%);
}

.formation-container {
  max-width: 1460px;
}

.formation-hero {
  border: 1px solid var(--fs-border);
  border-radius: 16px;
  padding: 1.25rem 1.5rem;
  background: linear-gradient(120deg, #ffffff, #f0f7ff);
  box-shadow: 0 12px 32px rgba(15, 23, 42, 0.06);
}

.formation-kicker {
  color: #0284c7;
  letter-spacing: 0.08em;
  font-size: 0.84rem;
}

.formation-title {
  margin: 0;
  color: #0f172a;
  letter-spacing: 0.03em;
  font-family: 'Zen Old Mincho', 'Barlow Condensed', 'Noto Sans JP', sans-serif;
  font-size: clamp(2.2rem, 5vw, 3.15rem);
}

.formation-subtitle {
  color: #475569;
}

.fs-card {
  border: 1px solid var(--fs-border);
  border-radius: 14px;
  background: var(--fs-paper);
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.05);
}

.fs-card .form-label {
  margin-bottom: 0.3rem;
  color: var(--fs-muted);
  font-weight: 700;
  font-size: 0.79rem;
}

.fs-group-options {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.fs-group-option {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.42rem 0.7rem;
  border: 1px solid #c7d6e4;
  border-radius: 999px;
  background: #ffffff;
  cursor: pointer;
  transition: border-color 0.14s ease, box-shadow 0.14s ease, background-color 0.14s ease;
}

.fs-group-option:hover {
  border-color: #38bdf8;
  box-shadow: 0 0 0 0.2rem rgba(56, 189, 248, 0.12);
}

.fs-group-option.is-selected {
  border-color: #0284c7;
  background: #e0f2fe;
}

.fs-group-option-input {
  width: 1rem;
  height: 1rem;
  margin: 0;
}

.fs-group-option-label {
  color: #0f172a;
  font-size: 0.87rem;
  font-weight: 700;
  line-height: 1;
}

.fs-card .form-control,
.fs-card .form-select,
.fs-card textarea {
  border: 1px solid #c7d6e4;
  background: #ffffff;
  color: #0f172a;
}

.fs-card .form-control::placeholder,
.fs-card textarea::placeholder {
  color: #94a3b8;
}

.fs-card .form-control:focus,
.fs-card .form-select:focus,
.fs-card textarea:focus {
  border-color: #38bdf8;
  box-shadow: 0 0 0 0.2rem var(--fs-focus);
}

.fs-sticky-guide {
  border: 1px dashed #7dd3fc;
  background: var(--fs-accent-soft);
  color: #0c4a6e;
  padding: 0.6rem 0.8rem;
  border-radius: 10px;
  font-size: 0.92rem;
}

.fs-draft-status {
  min-height: 1.25rem;
}

.fs-draft-status.is-dirty {
  color: #b45309 !important;
}

.fs-section-title {
  margin-bottom: 0.8rem;
  color: #0369a1;
  font-size: 1.08rem !important;
  border: none;
  padding: 0;
}

.fs-canvas {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.35rem;
  --fs-group-bg-soft: #eef6ff;
  --fs-group-bg-strong: #dbeafe;
  --fs-group-border: #bcd7f5;
}

.fs-preview-header {
  width: 100%;
  min-width: 0;
  text-align: center;
  padding: 0.3rem 0.2rem 0.5rem;
  border-radius: 14px;
  border: 1px solid var(--fs-group-border);
  background: linear-gradient(180deg, var(--fs-group-bg-soft), #ffffff);
}

.fs-preview-group {
  margin: 0;
  font-size: clamp(1.1rem, 2vw, 1.8rem);
  font-weight: 700;
  color: #0f172a;
}

.fs-preview-title {
  margin: 0.25rem 0 0;
  font-size: clamp(2.05rem, 4.1vw, 3.3rem);
  letter-spacing: 0.05em;
  line-height: 1.12;
  color: #0f172a;
  font-family: 'Zen Old Mincho', 'Noto Serif JP', serif;
}

.fs-preview-song {
  margin: 0.3rem 0 0;
  font-size: clamp(1rem, 2vw, 1.55rem);
  color: #334155;
  letter-spacing: 0.04em;
}

.fs-row {
  width: 100%;
  min-width: 0;
  border: 1px solid var(--fs-group-border);
  border-radius: 16px;
  padding: 1.15rem 0.95rem 1.2rem;
  background: linear-gradient(180deg, #ffffff, var(--fs-group-bg-soft));
  --fs-slot-size: 166px;
  --fs-slot-gap: 0.8rem;
  --fs-slot-photo-size: 124px;
  --fs-slot-min-height: 212px;
  --fs-slot-name-size: 1.05rem;
  --fs-slot-index-size: 0.85rem;
}

.fs-row-label {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  color: #1d4ed8;
  font-size: 0.95rem;
  margin-bottom: 0.6rem;
  letter-spacing: 0.03em;
  font-weight: 700;
}

.fs-row-label-text {
  line-height: 1;
}

.fs-row-stepper {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.2rem 0.35rem;
  border-radius: 999px;
  border: 1px solid #bfdbfe;
  background: var(--fs-group-bg-strong);
}

.fs-row-stepper-btn {
  width: 26px;
  height: 26px;
  border: 1px solid #93c5fd;
  border-radius: 50%;
  background: #ffffff;
  color: #1e3a8a;
  font-size: 1rem;
  line-height: 1;
  padding: 0;
}

.fs-row-stepper-btn:disabled {
  opacity: 0.45;
}

.fs-row-stepper-count {
  min-width: 2.8rem;
  text-align: center;
  color: #1e3a8a;
  font-size: 0.84rem;
  font-weight: 700;
}

.fs-slot-list {
  display: flex;
  width: 100%;
  min-width: 0;
  flex-wrap: nowrap;
  justify-content: center;
  gap: var(--fs-slot-gap);
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: thin;
  padding-bottom: 0.3rem;
}

.fs-slot {
  position: relative;
  width: var(--fs-slot-size);
  min-height: var(--fs-slot-min-height);
  border: 1px solid transparent;
  border-radius: 16px;
  text-align: center;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.86), rgba(248, 250, 252, 0.9));
  color: #0f172a;
  padding: 0.2rem 1.6rem 0.4rem;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
  transition: transform 0.14s ease, filter 0.14s ease, border-color 0.14s ease, box-shadow 0.14s ease, background-color 0.14s ease;
}

.fs-slot:not(:disabled):hover {
  transform: translateY(-4px);
  filter: saturate(1.05);
  border-color: rgba(14, 165, 233, 0.36);
  box-shadow: 0 10px 18px rgba(14, 165, 233, 0.12);
}

.fs-slot.is-selected {
  transform: translateY(-4px);
  border-color: #0ea5e9;
  background: linear-gradient(180deg, #f4fbff, #eaf6ff);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.22), 0 14px 24px rgba(14, 165, 233, 0.18);
}

.fs-slot.is-empty {
  color: #64748b;
}

.fs-slot:focus-visible {
  outline: none;
  border-color: #0ea5e9;
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.22), 0 12px 20px rgba(14, 165, 233, 0.14);
}

.fs-slot-index {
  display: inline-flex;
  min-width: 1.75rem;
  height: 1.35rem;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: #dbeafe;
  color: #1e3a8a;
  font-size: var(--fs-slot-index-size);
  font-weight: 700;
  line-height: 1;
}

.fs-slot.is-selected .fs-slot-index {
  background: #0284c7;
  color: #f8fafc;
}

.fs-slot-main {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.42rem;
}

.fs-slot-photo {
  width: var(--fs-slot-photo-size);
  height: var(--fs-slot-photo-size);
  border-radius: 50%;
  object-fit: cover;
  object-position: center top;
  border: 2px solid #93c5fd;
  flex: 0 0 var(--fs-slot-photo-size);
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.14);
}

.fs-slot.is-selected .fs-slot-photo {
  border-color: #0ea5e9;
  box-shadow: 0 10px 24px rgba(2, 132, 199, 0.22);
}

.fs-slot-photo-fallback {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #dbeafe;
  color: #0c4a6e;
  font-size: 0.62rem;
  text-transform: uppercase;
}

.fs-slot-name {
  display: block;
  font-size: var(--fs-slot-name-size);
  font-weight: 700;
  line-height: 1.2;
  word-break: break-word;
  max-width: 150px;
}

.fs-slot-name.is-graduated {
  color: #be123c;
}

.fs-slot-clear {
  position: absolute;
  top: 30px;
  right: 18px;
  width: 22px;
  height: 22px;
  border: none;
  border-radius: 50%;
  background: #f43f5e;
  color: #fff;
  line-height: 1;
  padding: 0;
}

.fs-members {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 0.58rem;
  max-height: none;
  overflow: visible;
}

.fs-member-chip {
  border: 1px solid #d2dfed;
  border-radius: 12px;
  background: #ffffff;
  color: #1e293b;
  text-align: left;
  padding: 0.5rem;
  min-height: 72px;
  transition: border-color 0.12s ease, transform 0.12s ease, box-shadow 0.12s ease;
}

.fs-member-chip:hover {
  border-color: #38bdf8;
  transform: translateY(-1px);
  box-shadow: 0 6px 14px rgba(2, 132, 199, 0.12);
}

.fs-member-chip.is-graduated {
  border-color: #fda4af;
  background: #fff8f8;
}

.fs-member-chip.is-placed {
  opacity: 0.56;
}

.fs-member-chip:disabled {
  opacity: 0.7;
}

.fs-member-head {
  display: flex;
  gap: 0.55rem;
  align-items: center;
}

.fs-member-photo {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid #bfdbfe;
  flex: 0 0 40px;
}

.fs-member-photo-fallback {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: #dbeafe;
  color: #0c4a6e;
  font-size: 0.54rem;
  text-align: center;
}

.fs-member-text {
  display: flex;
  flex-direction: column;
}

.fs-member-name {
  display: block;
  font-size: 0.87rem;
  font-weight: 700;
  line-height: 1.12;
}

.fs-member-meta {
  display: block;
  margin-top: 0.2rem;
  color: #64748b;
  font-size: 0.72rem;
}

.fs-card .form-check-input:focus {
  box-shadow: 0 0 0 0.2rem var(--fs-focus);
}

#fs-quick-assign-wrap {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  border: 1px solid #dbe7f3;
  border-radius: 10px;
  background: #f8fbff;
  padding: 0.5rem 0.75rem;
  padding-left: 0.75rem;
}

#fs-quick-assign-wrap .form-check-input {
  float: none;
  margin: 0;
  flex: 0 0 auto;
}

#fs-quick-assign-wrap .form-check-label {
  margin: 0;
  line-height: 1.35;
  font-size: 0.86rem;
  color: #334155;
  font-weight: 600;
}

#fs-share-x,
#fs-export-image,
#fs-duplicate,
#fs-edit-source {
  min-width: 150px;
}

.fs-alert-action {
  margin-bottom: 0.4rem !important;
}

.fs-share-notice {
  margin-bottom: 0.4rem !important;
}

.fs-share-url {
  display: inline-block;
  max-width: 100%;
  overflow-wrap: anywhere;
  color: #0f5132;
}

@media (max-width: 991.98px) {
  .fs-members {
    max-height: 360px;
  }

  .fs-slot {
    width: min(100%, var(--fs-slot-size));
    min-height: 198px;
  }

  .fs-slot-photo {
    width: 110px;
    height: 110px;
    flex-basis: 110px;
  }
}

@media (max-width: 575.98px) {
  .formation-container {
    padding-top: 0.9rem !important;
  }

  .formation-hero {
    padding: 1rem;
  }

  .fs-row {
    padding: 0.8rem 0.35rem 0.9rem;
  }

  .fs-slot-list {
    overflow-x: auto;
    justify-content: flex-start;
  }

  .fs-slot {
    width: min(100%, var(--fs-slot-size));
    min-height: 152px;
    padding-right: 0.35rem;
    padding-left: 0.35rem;
  }

  .fs-slot-main {
    gap: 0.35rem;
  }

  .fs-slot-photo {
    width: clamp(40px, calc(var(--fs-slot-size) * 0.92), 82px);
    height: clamp(40px, calc(var(--fs-slot-size) * 0.92), 82px);
    flex-basis: clamp(40px, calc(var(--fs-slot-size) * 0.92), 82px);
  }

  .fs-slot-name {
    max-width: 100%;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    word-break: keep-all;
  }

  .fs-slot-clear {
    top: 24px;
    right: 8px;
    width: 20px;
    height: 20px;
  }

  .fs-members {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    max-height: none;
    overflow: visible;
  }

  .fs-member-chip {
    min-height: 64px;
    padding: 0.45rem;
  }

  .fs-member-head {
    gap: 0.45rem;
  }

  .fs-member-photo,
  .fs-member-photo-fallback {
    width: 34px;
    height: 34px;
    flex-basis: 34px;
  }

  .fs-member-name {
    font-size: 0.8rem;
    line-height: 1.08;
  }

  .fs-member-meta {
    font-size: 0.66rem;
    margin-top: 0.1rem;
  }

  #fs-share-copy,
  #fs-share-edit,
  #fs-share-gallery,
  #fs-share-x,
  #fs-export-image,
  #fs-duplicate,
  #fs-edit-source,
  #fs-save {
    width: 100%;
  }
}