/* ============================================================
   components.css — Buttons, cards, forms, stepper, calendar, etc
   ============================================================ */

/* ---------- Button ---------- */
.c-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 22px;
  border-radius: var(--radius-pill);
  font-size: 0.975rem;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast), background var(--dur-fast), color var(--dur-fast), border-color var(--dur-fast);
  white-space: nowrap;
  cursor: pointer;
}
.c-button:hover { transform: translateY(-1px); }
.c-button:active { transform: translateY(0); }
.c-button[disabled], .c-button[aria-busy="true"] {
  opacity: .65;
  cursor: not-allowed;
  transform: none;
}
.c-button--primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: var(--shadow-pop);
}
.c-button--primary:hover { background: var(--color-primary-dark); }
.c-button--secondary {
  background: #fff;
  color: var(--color-primary-dark);
  border-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}
.c-button--secondary:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}
.c-button--ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.5);
}
.c-button--ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #fff;
}
.c-button--ghost-dark {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border-strong);
}
.c-button--ghost-dark:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}
.c-button--lg { min-height: 56px; padding: 0 28px; font-size: 1.0625rem; }
.c-button--sm { min-height: 38px; padding: 0 14px; font-size: 0.875rem; }
.c-button--block { width: 100%; }
.c-button__icon {
  display: inline-flex;
  width: 18px; height: 18px;
}

/* ---------- Card ---------- */
.c-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: clamp(20px, 3vw, 32px);
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(0,0,0,0.02);
  transition: transform var(--dur-base) var(--ease-out), box-shadow var(--dur-base);
}
.c-card--interactive { cursor: pointer; }
.c-card--interactive:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}
.c-card__eyebrow {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  text-transform: uppercase;
}
.c-card__title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-top: 8px;
}
.c-card__body {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.85;
  margin-top: 8px;
}

/* ---------- Feature card (4 functions) ---------- */
.c-feature {
  display: grid;
  gap: 14px;
  padding: 28px;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  position: relative;
  overflow: hidden;
}
.c-feature::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 80px; height: 80px;
  background: radial-gradient(circle at 0 0, var(--color-primary-light), transparent 70%);
  pointer-events: none;
}
.c-feature > * {
  position: relative;
  z-index: 1;
}
.c-feature__badge {
  display: inline-flex;
  width: max-content;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
  font-size: 0.75rem;
  font-weight: 600;
}
.c-feature__icon {
  width: 56px; height: 56px;
  display: grid; place-items: center;
  border-radius: 18px;
  background: var(--color-primary);
  color: #fff;
  font-size: 24px;
}
.c-feature h3 { font-size: 1.15rem; }
.c-feature p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.85;
}
#features .c-feature:nth-child(1) { --feature-image: url("../assets/images/feature/feature-01-openspace.jpg"); }
#features .c-feature:nth-child(2) { --feature-image: url("../assets/images/feature/feature-02-showcase.jpg"); }
#features .c-feature:nth-child(3) { --feature-image: url("../assets/images/feature/feature-03-workshop.jpg"); }
#features .c-feature:nth-child(4) { --feature-image: url("../assets/images/feature/feature-04-interactive.jpg"); }
#features .c-feature,
.p-guidelines-features .c-feature {
  padding-top: 170px;
}
#features .c-feature::before,
.p-guidelines-features .c-feature::before {
  inset: 0 0 auto;
  width: auto;
  height: 146px;
  background:
    linear-gradient(180deg, rgba(42, 7, 46, 0.02), rgba(42, 7, 46, 0.24)),
    var(--feature-image) center / cover no-repeat;
}
.p-guidelines-features .c-feature:nth-child(1) { --feature-image: url("../assets/images/feature/feature-01-openspace.jpg"); }
.p-guidelines-features .c-feature:nth-child(2) { --feature-image: url("../assets/images/feature/feature-02-showcase.jpg"); }
.p-guidelines-features .c-feature:nth-child(3) { --feature-image: url("../assets/images/feature/feature-03-workshop.jpg"); }
.p-guidelines-features .c-feature:nth-child(4) { --feature-image: url("../assets/images/feature/feature-04-interactive.jpg"); }

/* ---------- Stat card ---------- */
.c-stat {
  display: grid;
  gap: 6px;
  padding: 28px;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  text-align: center;
}
.c-stat__value {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 3.75rem);
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
}
.c-stat__label {
  font-size: 0.95rem;
  color: var(--color-text-muted);
}
.c-stat__suffix {
  font-size: 0.5em;
  color: var(--color-text-muted);
  font-weight: 500;
  margin-left: 2px;
}

/* ---------- Tag / badge ---------- */
.c-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  font-size: 0.78rem;
  font-weight: 600;
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
  white-space: nowrap;
}
.c-tag--outline {
  background: transparent;
  border: 1px solid var(--color-border-strong);
  color: var(--color-text);
}
.c-tag--event       { background: #f7e8f8; color: var(--tag-event); }
.c-tag--exhibition  { background: #e3f3e6; color: var(--tag-exhibition); }
.c-tag--workshop    { background: #fdebd0; color: var(--tag-workshop); }
.c-tag--academic    { background: #e0ebf8; color: var(--tag-academic); }
.c-tag--maintenance { background: #ececec; color: var(--tag-maintenance); }

/* ---------- Alert ---------- */
.c-alert {
  display: flex;
  gap: 12px;
  padding: 14px 18px;
  border-radius: var(--radius-md);
  border-left: 4px solid;
  background: var(--color-bg-soft);
  font-size: 0.95rem;
  align-items: flex-start;
}
.c-alert__icon {
  flex-shrink: 0;
  width: 22px; height: 22px;
  display: grid; place-items: center;
  font-weight: 700;
}
.c-alert--info     { border-color: var(--color-info);    background: #eef4fb; color: #1a3d6b; }
.c-alert--success  { border-color: var(--color-success); background: #ecf6ee; color: #1d5526; }
.c-alert--warning  { border-color: var(--color-warning); background: #fdf3e6; color: #7c4506; }
.c-alert--error    { border-color: var(--color-error);   background: #fbecea; color: #6e1812; }

/* ---------- Form fields ---------- */
.c-field {
  display: grid;
  gap: 4px;
}
.c-field + .c-field { margin-top: 20px; }
.c-field__label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-text);
}
.c-field__label--required::after {
  content: "必須";
  display: inline-flex;
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  background: var(--color-primary);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 600;
}
.c-field__label--optional::after {
  content: "任意";
  display: inline-flex;
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  background: #eee;
  color: var(--color-text-muted);
  font-size: 0.7rem;
  font-weight: 600;
}
.c-field-help {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
  margin-top: 2px;
}
.c-field-help strong { color: var(--color-text); }
.c-field-why {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  background: var(--color-bg);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--color-primary);
}
.c-input,
.c-textarea,
.c-select {
  width: 100%;
  min-height: 48px;
  padding: 12px 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-strong);
  background: #fff;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--color-text);
  transition: border-color var(--dur-fast), box-shadow var(--dur-fast);
}
.c-textarea {
  min-height: 140px;
  padding-block: 14px;
  resize: vertical;
  line-height: 1.7;
}
.c-input:focus, .c-textarea:focus, .c-select:focus,
.c-input:focus-visible, .c-textarea:focus-visible, .c-select:focus-visible {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}
.c-input[aria-invalid="true"],
.c-textarea[aria-invalid="true"],
.c-select[aria-invalid="true"] {
  border-color: var(--color-error);
  background: #fdf3f2;
}
.c-input[aria-invalid="true"]:focus,
.c-textarea[aria-invalid="true"]:focus {
  box-shadow: 0 0 0 3px rgba(179, 38, 30, 0.15);
}
.c-select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'><path fill='%23171717' d='M1 1l5 5 5-5'/></svg>");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
  cursor: pointer;
}
.c-error-message {
  color: var(--color-error);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 6px;
  font-size: 0.9rem;
}
.c-error-message::before {
  content: "⚠";
  font-size: 1.05em;
}
.c-error-summary {
  background: #fbecea;
  border-left: 4px solid var(--color-error);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  color: #6e1812;
  margin-bottom: 16px;
}
.c-error-summary h3 {
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 6px;
}
.c-error-summary h3::before { content: "⚠"; }
.c-error-summary ul {
  margin-left: 24px;
  font-size: 0.9rem;
}
.c-error-summary ul li { list-style: disc; }
.c-error-summary a { color: #6e1812; text-decoration: underline; font-weight: 600; }

/* ---------- Choice card (radio / checkbox card) ---------- */
.c-choice-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-height: 88px;
  padding: 16px 18px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: #fff;
  cursor: pointer;
  transition: border-color var(--dur-fast), background var(--dur-fast), box-shadow var(--dur-fast), transform var(--dur-fast);
}
.c-choice-card:hover {
  border-color: var(--color-primary);
  background: var(--color-primary-soft);
}
.c-choice-card.is-selected,
.c-choice-card:has(input:checked) {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
  box-shadow: 0 0 0 4px rgba(139, 22, 143, 0.10);
}
.c-choice-card__title {
  font-weight: 700;
  font-size: 1rem;
  display: flex;
  align-items: center;
  gap: 8px;
}
.c-choice-card__desc {
  color: var(--color-text-muted);
  font-size: 0.875rem;
  line-height: 1.7;
}
.c-choice-card__check {
  position: absolute;
  top: 12px; right: 12px;
  width: 24px; height: 24px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid var(--color-border-strong);
  display: grid;
  place-items: center;
  font-size: 12px;
  font-weight: 700;
  color: transparent;
  transition: background var(--dur-fast), border-color var(--dur-fast), color var(--dur-fast);
}
.c-choice-card.is-selected .c-choice-card__check,
.c-choice-card:has(input:checked) .c-choice-card__check {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}
.c-choice-card.is-selected .c-choice-card__check::after,
.c-choice-card:has(input:checked) .c-choice-card__check::after { content: "✓"; }
.c-choice-card input { position: absolute; opacity: 0; pointer-events: none; }
.c-choice-card:focus-within {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

.c-choice-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr;
}
@media (min-width: 540px) {
  .c-choice-grid { grid-template-columns: 1fr 1fr; }
}

/* ---------- Stepper ---------- */
.c-stepper {
  display: grid;
  gap: 14px;
  padding: 20px 0;
}
.c-stepper__status {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-primary-dark);
}
.c-stepper__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  counter-reset: step;
}
.c-stepper__item {
  flex: 1 1 0;
  min-width: 90px;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  background: #fff;
  border: 1px solid var(--color-border);
  font-size: 0.85rem;
  display: grid;
  gap: 2px;
  text-align: left;
  position: relative;
}
.c-stepper__item__num {
  display: inline-flex;
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--color-border);
  color: var(--color-text-muted);
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
}
.c-stepper__item__label {
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--color-text);
}
.c-stepper__item.is-current {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}
.c-stepper__item.is-current .c-stepper__item__num {
  background: var(--color-primary);
  color: #fff;
}
.c-stepper__item.is-done .c-stepper__item__num {
  background: var(--color-success);
  color: #fff;
}
.c-stepper__item.is-done .c-stepper__item__num::after { content: "✓"; }
.c-stepper__item.is-done .c-stepper__item__num { font-size: 0; }
.c-stepper__item.is-done .c-stepper__item__num::after { font-size: 13px; }
.c-stepper__item.is-error {
  border-color: var(--color-error);
  background: #fbecea;
}
.c-stepper__item.is-error .c-stepper__item__num {
  background: var(--color-error);
  color: #fff;
}
@media (max-width: 720px) {
  .c-stepper__item__label { display: none; }
  .c-stepper__item.is-current .c-stepper__item__label { display: block; }
  .c-stepper__item { flex: 0 0 auto; min-width: 0; padding: 8px 10px; }
  .c-stepper__item.is-current { flex: 1 1 auto; }
}

@media (max-width: 767px) {
  .p-reserve-page .c-button,
  .p-reserve-page .c-input,
  .p-reserve-page .c-select,
  .p-reserve-page .c-file-drop__button {
    min-height: 52px;
  }

  .p-reserve-page .c-input,
  .p-reserve-page .c-select,
  .p-reserve-page .c-textarea {
    font-size: 16px;
    border-radius: 12px;
  }

  .p-reserve-page .c-field {
    gap: 8px;
  }

  .p-reserve-page .c-field__label {
    font-size: 1rem;
  }

  .p-reserve-page .c-field-help,
  .p-reserve-page .c-field-why {
    font-size: 0.92rem;
    line-height: 1.65;
  }

  .p-reserve-page .c-choice-card {
    min-height: 72px;
    padding: 14px 48px 14px 16px;
    border-radius: 14px;
  }

  .p-reserve-page .c-choice-card__title {
    font-size: 1rem;
    line-height: 1.35;
  }

  .p-reserve-page .c-choice-card__desc {
    font-size: 0.88rem;
    line-height: 1.55;
  }

  .p-reserve-page .c-choice-card__check {
    top: 14px;
    right: 14px;
    width: 28px;
    height: 28px;
  }

  .p-reserve-page .c-stepper {
    position: sticky;
    top: var(--header-height);
    z-index: 30;
    margin-inline: calc(-1 * clamp(20px, 5vw, 40px));
    padding: 10px clamp(20px, 5vw, 40px) 12px;
    background: rgba(247, 247, 244, 0.94);
    backdrop-filter: blur(12px) saturate(160%);
    -webkit-backdrop-filter: blur(12px) saturate(160%);
    border-bottom: 1px solid var(--color-border);
  }

  .p-reserve-page .c-stepper__list {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 2px;
    scrollbar-width: none;
  }

  .p-reserve-page .c-stepper__list::-webkit-scrollbar {
    display: none;
  }

  .p-reserve-page .c-stepper__item {
    min-width: 42px;
    min-height: 42px;
    padding: 8px;
    align-content: center;
    justify-items: center;
    border-radius: 12px;
  }

  .p-reserve-page .c-stepper__item.is-current {
    min-width: 132px;
    justify-items: start;
  }

  .p-reserve-page .c-step-card {
    border-radius: 16px;
    padding: 116px 16px 112px;
    box-shadow: 0 10px 32px rgba(20, 20, 30, 0.08);
  }

  .p-reserve-page .c-step-card::before {
    height: 96px;
  }

  .p-reserve-page .c-step-card__head {
    margin-bottom: 20px;
  }

  .p-reserve-page .c-step-card__num {
    font-size: 0.78rem;
  }

  .p-reserve-page .c-step-card__title {
    font-size: 1.28rem;
    line-height: 1.35;
  }

  .p-reserve-page .c-step-card__lead {
    font-size: 0.94rem;
    line-height: 1.7;
  }

  .p-reserve-page .c-step-card__actions {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 80;
    margin: 0;
    padding: 12px clamp(16px, 5vw, 24px) calc(12px + env(safe-area-inset-bottom));
    background: rgba(255, 255, 255, 0.96);
    border-top: 1px solid var(--color-border);
    box-shadow: 0 -12px 32px rgba(20, 20, 30, 0.10);
    flex-direction: column-reverse;
  }

  .p-reserve-page .c-step-card__actions .c-button {
    width: 100%;
    flex: none;
    white-space: normal;
  }

  .p-reserve-page .c-time-row {
    gap: 14px;
  }

  .p-reserve-page .c-calendar {
    padding: 12px;
    border-radius: 14px;
  }

  .p-reserve-page .c-calendar__nav button {
    width: 44px;
    height: 44px;
  }

  .p-reserve-page .c-calendar__grid,
  .p-reserve-page .c-calendar__weeks {
    gap: 3px;
  }

  .p-reserve-page .c-calendar__day {
    min-height: 48px;
    border-radius: 10px;
    font-size: 0.88rem;
    padding-top: 5px;
  }

  .p-reserve-page .c-confirm-card {
    padding: 16px;
    border-radius: 14px;
  }

  .p-reserve-page .c-file-drop {
    padding: 22px 16px;
  }
}

/* ---------- Form progress ---------- */
.c-form-progress {
  position: relative;
  height: 6px;
  border-radius: 999px;
  background: var(--color-border);
  overflow: hidden;
}
.c-form-progress__bar {
  position: absolute;
  inset: 0 auto 0 0;
  background: linear-gradient(90deg, var(--color-primary) 0%, #d04dd6 100%);
  border-radius: inherit;
  width: 0;
  transition: width var(--dur-base) var(--ease-out);
}

/* ---------- Step card ---------- */
.c-step-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: calc(clamp(20px, 4vw, 40px) + 164px) clamp(20px, 4vw, 40px) clamp(20px, 4vw, 40px);
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
}
.c-step-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 164px;
  background:
    linear-gradient(180deg, rgba(42, 7, 46, 0.02), rgba(42, 7, 46, 0.24)),
    var(--step-image) center / cover no-repeat;
}
.c-step-card[data-step="1"] { --step-image: url("../assets/images/reserve/step-01-date.jpg"); }
.c-step-card[data-step="2"] { --step-image: url("../assets/images/reserve/step-02-organizer.jpg"); }
.c-step-card[data-step="3"] { --step-image: url("../assets/images/reserve/step-03-content.jpg"); }
.c-step-card[data-step="4"] { --step-image: url("../assets/images/reserve/step-04-area.jpg"); }
.c-step-card[data-step="5"] { --step-image: url("../assets/images/reserve/step-05-detail.jpg"); }
.c-step-card[data-step="6"] { --step-image: url("../assets/images/reserve/step-06-confirm.jpg"); }
.c-step-card > * {
  position: relative;
  z-index: 1;
}
.c-step-card__head {
  display: grid;
  gap: 4px;
  margin-bottom: 24px;
}
.c-step-card__num {
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  color: var(--color-primary);
  font-weight: 700;
}
.c-step-card__title {
  font-size: 1.5rem;
  font-weight: 700;
}
.c-step-card__lead {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.85;
  margin-top: 4px;
}
.c-step-card__actions {
  display: flex;
  gap: 12px;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
  flex-wrap: wrap;
}
.c-step-card__actions .c-button { flex: 1 1 140px; }
.c-step-card__actions .c-button--primary { flex: 2 1 180px; }
@media (max-width: 600px) {
  .c-step-card__actions { flex-direction: column; }
}

/* ---------- Confirm card ---------- */
.c-confirm-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  display: grid;
  gap: 12px;
}
.c-confirm-card + .c-confirm-card { margin-top: 14px; }
.c-confirm-card__head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
}
.c-confirm-card__head h3 { font-size: 1.05rem; }
.c-confirm-card__edit {
  font-size: 0.85rem;
  color: var(--color-primary);
  text-decoration: underline;
  font-weight: 600;
}
.c-confirm-card dl {
  display: grid;
  gap: 6px;
  grid-template-columns: 130px 1fr;
  font-size: 0.95rem;
}
.c-confirm-card dt {
  color: var(--color-text-muted);
  font-weight: 500;
}
.c-confirm-card dd {
  font-weight: 500;
  word-break: break-word;
}
@media (max-width: 600px) {
  .c-confirm-card dl { grid-template-columns: 1fr; gap: 2px 0; }
  .c-confirm-card dl dt { font-size: 0.8rem; }
  .c-confirm-card dl dd { margin-bottom: 6px; }
}

/* ---------- File drop ---------- */
.c-file-drop {
  border: 2px dashed var(--color-border-strong);
  border-radius: var(--radius-lg);
  padding: 28px 20px;
  text-align: center;
  background: var(--color-bg);
  transition: border-color var(--dur-fast), background var(--dur-fast);
  cursor: pointer;
}
.c-file-drop:hover,
.c-file-drop.is-dragover {
  border-color: var(--color-primary);
  background: var(--color-primary-soft);
}
.c-file-drop__title {
  font-weight: 600;
  font-size: 1rem;
  margin-top: 6px;
}
.c-file-drop__hint {
  color: var(--color-text-muted);
  font-size: 0.875rem;
  margin-top: 4px;
}
.c-file-drop__icon {
  font-size: 28px;
  color: var(--color-primary);
}
.c-file-drop input { position: absolute; left: -9999px; }
.c-file-drop__button {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  background: #fff;
  border: 1px solid var(--color-primary);
  color: var(--color-primary);
  font-size: 0.875rem;
  font-weight: 600;
  margin-top: 12px;
}
.c-file-list {
  margin-top: 12px;
  display: grid;
  gap: 8px;
}
.c-file-list__item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
}
.c-file-list__name { flex: 1; word-break: break-all; }
.c-file-list__size { color: var(--color-text-muted); font-size: 0.8rem; }
.c-file-list__remove {
  background: var(--color-bg);
  width: 32px; height: 32px;
  border-radius: 50%;
  display: grid; place-items: center;
  color: var(--color-error);
}
.c-file-list__remove:hover { background: var(--color-error); color: #fff; }

/* ---------- Calendar ---------- */
.c-calendar {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 18px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
}
.c-calendar__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}
.c-calendar__title { font-weight: 700; font-size: 1.1rem; }
.c-calendar__nav {
  display: inline-flex;
  gap: 6px;
}
.c-calendar__nav button {
  width: 40px; height: 40px;
  border-radius: 50%;
  display: grid; place-items: center;
  background: var(--color-bg);
  font-size: 18px;
}
.c-calendar__nav button:hover { background: var(--color-primary-light); color: var(--color-primary); }
.c-calendar__weeks {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
  margin-bottom: 6px;
  text-align: center;
  font-size: 0.78rem;
  color: var(--color-text-muted);
  font-weight: 600;
}
.c-calendar__grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
}
.c-calendar__day {
  aspect-ratio: 1 / 1;
  position: relative;
  border-radius: var(--radius-sm);
  background: transparent;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  padding: 6px 0 4px;
  font-size: 0.9rem;
  font-weight: 500;
  border: 1px solid transparent;
  transition: background var(--dur-fast), border-color var(--dur-fast);
  cursor: pointer;
  min-height: 44px;
}
.c-calendar__day:hover { background: var(--color-primary-soft); border-color: var(--color-primary-light); }
.c-calendar__day.is-other { color: var(--color-text-soft); }
.c-calendar__day.is-today { font-weight: 700; }
.c-calendar__day.is-today::after {
  content: "";
  position: absolute;
  bottom: 4px; left: 50%;
  transform: translateX(-50%);
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--color-primary);
}
.c-calendar__day.is-disabled {
  color: #c8cad0;
  cursor: not-allowed;
  background: #f5f5f0;
}
.c-calendar__day.is-disabled:hover { background: #f5f5f0; border-color: transparent; }
.c-calendar__day.is-selected {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}
.c-calendar__day.is-selected::after { background: #fff; }
.c-calendar__day.has-events { background: var(--color-primary-light); }
.c-calendar__dots {
  display: flex;
  gap: 2px;
  margin-top: auto;
  margin-bottom: 6px;
  flex-wrap: wrap;
  justify-content: center;
}
.c-calendar__dot {
  width: 6px; height: 6px;
  border-radius: 50%;
}
.c-calendar__dot--event       { background: var(--tag-event); }
.c-calendar__dot--exhibition  { background: var(--tag-exhibition); }
.c-calendar__dot--workshop    { background: var(--tag-workshop); }
.c-calendar__dot--academic    { background: var(--tag-academic); }
.c-calendar__dot--maintenance { background: var(--tag-maintenance); }
.c-calendar__legend {
  margin-top: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.8rem;
  color: var(--color-text-muted);
}
.c-calendar__legend-item { display: inline-flex; align-items: center; gap: 6px; }

/* ---------- Time picker ---------- */
.c-time-row {
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr;
}
@media (min-width: 540px) {
  .c-time-row { grid-template-columns: 1fr auto 1fr; align-items: end; }
}
.c-time-row__sep {
  display: grid;
  place-items: center;
  font-size: 1.25rem;
  color: var(--color-text-muted);
  padding-bottom: 14px;
}
@media (max-width: 540px) {
  .c-time-row__sep { display: none; }
}

/* ---------- Modal ---------- */
.c-modal {
  position: fixed;
  inset: 0;
  background: rgba(20, 16, 30, 0.55);
  display: grid;
  place-items: center;
  padding: 16px;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--dur-base), visibility 0s linear var(--dur-base);
}
.c-modal.is-open {
  opacity: 1;
  visibility: visible;
  transition: opacity var(--dur-base), visibility 0s;
}
.c-modal__panel {
  background: #fff;
  border-radius: var(--radius-xl);
  padding: 28px;
  max-width: 480px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.3);
  transform: translateY(16px);
  transition: transform var(--dur-base) var(--ease-out);
}
.c-modal.is-open .c-modal__panel { transform: translateY(0); }
.c-modal__head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 14px;
}
.c-modal__close {
  width: 36px; height: 36px;
  border-radius: 50%;
  display: grid; place-items: center;
  font-size: 18px;
  background: var(--color-bg);
}
.c-modal__close:hover { background: var(--color-primary-light); color: var(--color-primary); }

/* ---------- Event card ---------- */
.c-event-card {
  display: grid;
  gap: 14px;
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: transform var(--dur-base) var(--ease-out), box-shadow var(--dur-base);
}
.c-event-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); }
.c-event-card__media {
  aspect-ratio: 16 / 10;
  background: linear-gradient(135deg, var(--color-primary-light), #fce6ff);
  position: relative;
  display: grid;
  place-items: center;
  overflow: hidden;
}
.c-event-card__media img {
  width: 100%; height: 100%;
  object-fit: cover;
}
.c-event-card__media-placeholder {
  font-family: var(--font-display);
  font-size: 2.5rem;
  color: var(--color-primary);
  opacity: .35;
}
.c-event-card__body {
  padding: 18px 22px 22px;
  display: grid;
  gap: 8px;
}
.c-event-card__meta {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}
.c-event-card__title {
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.4;
  margin-top: 4px;
}
.c-event-card__excerpt {
  color: var(--color-text-muted);
  font-size: 0.92rem;
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.c-event-card__footer {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-top: 6px;
  font-size: 0.8rem;
  color: var(--color-text-muted);
}
.c-event-card__footer span {
  display: inline-flex;
  gap: 4px;
  align-items: center;
}

/* ---------- Filter chips ---------- */
.c-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.c-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  background: #fff;
  border: 1px solid var(--color-border-strong);
  font-size: 0.85rem;
  cursor: pointer;
  transition: background var(--dur-fast), border-color var(--dur-fast), color var(--dur-fast);
}
.c-chip:hover { border-color: var(--color-primary); color: var(--color-primary); }
.c-chip.is-active {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

/* ---------- Search input ---------- */
.c-search {
  position: relative;
  display: flex;
  align-items: center;
}
.c-search__input {
  width: 100%;
  min-height: 48px;
  padding: 12px 16px 12px 44px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border-strong);
  background: #fff;
  font-size: 1rem;
}
.c-search__input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}
.c-search__icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
  pointer-events: none;
}

/* ---------- Quote / pull quote ---------- */
.c-quote {
  border-left: 4px solid var(--color-primary);
  padding: 16px 24px;
  background: var(--color-primary-soft);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: 16px 0;
  font-size: 1.0625rem;
  color: var(--color-text);
  line-height: 1.85;
}
.c-quote cite {
  display: block;
  margin-top: 8px;
  font-style: normal;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* ---------- TOC ---------- */
.c-toc {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 18px 24px;
}
.c-toc h3 { font-size: 0.95rem; margin-bottom: 12px; }
.c-toc ol { display: grid; gap: 6px; counter-reset: toc; }
.c-toc ol li { font-size: 0.95rem; }
.c-toc ol li::before {
  counter-increment: toc;
  content: counter(toc) ".";
  color: var(--color-primary);
  font-weight: 700;
  margin-right: 6px;
}
.c-toc a { text-decoration: none; }
.c-toc a:hover { text-decoration: underline; }

/* ---------- Checklist ---------- */
.c-checklist {
  display: grid;
  gap: 10px;
}
.c-checklist li {
  display: flex;
  gap: 12px;
  padding: 14px 16px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  align-items: flex-start;
}
.c-checklist__num {
  flex-shrink: 0;
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  display: grid; place-items: center;
  font-size: 0.85rem;
  font-weight: 700;
}

/* ---------- Cat decoration ---------- */
.c-cat {
  position: absolute;
  width: 64px; height: 64px;
  pointer-events: none;
  opacity: 0.85;
}

/* ---------- Stamp / preparing ---------- */
.c-stamp {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: var(--color-accent);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  transform: rotate(-4deg);
  box-shadow: 0 6px 20px rgba(244, 169, 58, 0.4);
}