:root {
  --op-bg: #f7f9fc;
  --op-surface: #ffffff;
  --op-ink: #1e2939;
  --op-ink-soft: #5a6b82;
  --op-ink-faint: #8b9ab0;
  --op-line: #e3e9f2;
  --op-line-strong: #cfd9e8;
  --op-field: #f8fafc;
  --op-primary: #2563eb;
  --op-primary-dark: #1d4ed8;
  --op-accent: #4f46e5;
  --op-accent-dark: #4338ca;
  --op-danger: #dc2626;
  --op-danger-soft: #fdecec;
  --op-success: #15803d;
  --op-success-soft: #e8f6ed;
  --op-warning: #b45309;
  --op-warning-soft: #fdf3e3;
  --op-info: #1d4ed8;
  --op-info-soft: #e8effd;
  --op-radius: 12px;
  --op-radius-sm: 8px;
  --op-shadow: 0 1px 2px rgba(16, 30, 54, .04), 0 8px 24px rgba(16, 30, 54, .06);
  --op-shadow-lg: 0 12px 48px rgba(16, 30, 54, .18);
  --op-font: "Prompt", "Noto Sans Thai", "Sukhumvit Set", -apple-system, "Segoe UI", sans-serif;
}

/* --------------------------------------------------------------- button -- */

.op-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--op-font);
  font-size: 15px;
  font-weight: 500;
  line-height: 1.2;
  padding: 13px 22px;
  border-radius: var(--op-radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background-color .15s ease, border-color .15s ease, color .15s ease;
}
.op-btn:focus-visible { outline: 3px solid rgba(37, 99, 235, .35); outline-offset: 2px; }
.op-btn--block { width: 100%; }

.op-btn--primary { background: var(--op-primary); color: #fff; }
.op-btn--primary:hover, .op-btn--primary:focus { background: var(--op-primary-dark); color: #fff; text-decoration: none; }

.op-btn--secondary { background: var(--op-surface); color: var(--op-ink); border-color: var(--op-line-strong); }
.op-btn--secondary:hover, .op-btn--secondary:focus { background: #f4f7fc; color: var(--op-ink); text-decoration: none; }

.op-btn--accent { background: var(--op-surface); color: var(--op-accent); border-color: var(--op-line-strong); font-weight: 600; }
.op-btn--accent:hover, .op-btn--accent:focus { background: #f3f2ff; color: var(--op-accent-dark); text-decoration: none; }

.op-btn--danger { background: var(--op-danger); color: #fff; }
.op-btn--danger:hover, .op-btn--danger:focus { background: #b91c1c; color: #fff; text-decoration: none; }

.op-btn--ghost { background: transparent; color: var(--op-ink-soft); border-color: transparent; padding: 8px 12px; font-size: 14px; }
.op-btn--ghost:hover { color: var(--op-ink); text-decoration: underline; }

.op-btn--sm { padding: 8px 14px; font-size: 13px; }

/* ---------------------------------------------------------------- popup -- */

.op-modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.op-modal__overlay {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, .5);
  animation: op-fade .16s ease-out;
}
.op-modal__dialog {
  position: relative;
  width: 100%;
  max-width: 420px;
  background: var(--op-surface);
  border-radius: 16px;
  box-shadow: var(--op-shadow-lg);
  padding: 32px 32px 28px;
  text-align: center;
  animation: op-pop .18s ease-out;
}
.op-modal__icon {
  width: 62px;
  height: 62px;
  margin: 0 auto 18px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.op-modal__icon svg { width: 30px; height: 30px; }
.op-modal__icon--error { background: var(--op-danger-soft); color: var(--op-danger); }
.op-modal__icon--success { background: var(--op-success-soft); color: var(--op-success); }
.op-modal__icon--warning { background: var(--op-warning-soft); color: var(--op-warning); }
.op-modal__icon--info { background: var(--op-info-soft); color: var(--op-info); }

.op-modal__title {
  font-size: 19px;
  font-weight: 600;
  color: var(--op-ink);
  margin: 0 0 10px;
}
.op-modal__text {
  font-size: 15px;
  line-height: 1.6;
  color: var(--op-ink-soft);
  margin: 0 0 24px;
}
.op-modal__count { font-weight: 600; color: var(--op-ink); }

/* ประกาศระบบ — กว้างกว่า modal ปกติ รองรับทั้งโปสเตอร์และข้อความ */
.op-modal--announce .op-modal__dialog {
  max-width: 620px;
  padding: 30px 34px 26px;
  text-align: center;
  max-height: calc(100vh - 48px);
  overflow-y: auto;
}
.op-announce__image {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  border-radius: var(--op-radius-sm);
  margin: 0 auto 20px;
}
.op-announce__logo {
  display: block;
  width: auto;
  max-width: 70%;
  height: auto;
  margin-left: auto;
  margin-right: auto;
  object-fit: contain;
}
.op-announce__logo--top {
  max-height: 84px;
  margin-bottom: 20px;
}
.op-announce__logo--bottom {
  max-height: 78px;
  max-width: 55%;
  margin-top: 18px;
}

.op-announce__body {
  font-size: 15px;
  line-height: 1.75;
  color: var(--op-ink);
  margin-bottom: 4px;
}
.op-announce__body p { margin: 0 0 12px; }
.op-announce__note {
  border-top: 1px dashed var(--op-line-strong);
  margin-top: 18px;
  padding-top: 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--op-ink-soft);
}
.op-announce__note p { margin: 0; }
.op-announce__dismiss {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 400;
  color: var(--op-ink-soft);
  margin: 20px 0 16px;
  cursor: pointer;
}
.op-announce__dismiss input { margin: 0; cursor: pointer; }

@media (max-width: 560px) {
  .op-modal--announce .op-modal__dialog { padding: 22px 20px 20px; }
  .op-announce__body { font-size: 14px; }
}

.op-toasts {
  position: fixed;
  top: 88px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1900;
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: min(560px, calc(100vw - 32px));
}
.op-toast {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: var(--op-surface);
  border: 1px solid var(--op-line);
  border-left: 4px solid var(--op-info);
  border-radius: var(--op-radius-sm);
  box-shadow: var(--op-shadow);
  padding: 14px 16px;
  font-size: 15px;
  color: var(--op-ink);
  animation: op-slide .18s ease-out;
}
.op-toast--success { border-left-color: var(--op-success); }
.op-toast--error { border-left-color: var(--op-danger); }
.op-toast--warning { border-left-color: var(--op-warning); }
.op-toast__icon { flex: none; width: 22px; height: 22px; margin-top: 1px; }
.op-toast--success .op-toast__icon { color: var(--op-success); }
.op-toast--error .op-toast__icon { color: var(--op-danger); }
.op-toast--warning .op-toast__icon { color: var(--op-warning); }
.op-toast--info .op-toast__icon { color: var(--op-info); }
.op-toast__body { flex: 1; line-height: 1.5; }
.op-toast__close {
  flex: none;
  background: none;
  border: 0;
  color: var(--op-ink-faint);
  font-size: 20px;
  line-height: 1;
  padding: 0 2px;
  cursor: pointer;
}
.op-toast__close:hover { color: var(--op-ink); }
.op-toast.is-leaving { animation: op-fade-out .18s ease-in forwards; }