:root {
  --ink: #1b1d23;
  --paper: #fbfaf8;
  --line: #e4e1da;
  --accent: #2f5d50;
  --accent-soft: #e7efec;
  --danger: #b3432b;
  --muted: #6f6a60;
}

* { box-sizing: border-box; }

body {
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  margin: 0;
  color: var(--ink);
  background: var(--paper);
}

header {
  background: var(--accent);
  color: #fff;
  padding: 20px 24px;
}
header h1 { margin: 0; font-size: 1.5rem; letter-spacing: -0.02em; }
.tagline { margin: 4px 0 0; opacity: 0.85; font-size: 0.95rem; }

nav {
  display: flex;
  gap: 8px;
  padding: 16px 24px;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--line);
}

.nav-btn {
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  color: var(--ink);
  font-size: 0.9rem;
  cursor: pointer;
}
.nav-btn[aria-pressed="true"] {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

main { padding: 24px; max-width: 720px; margin: 0 auto; }
.panel h2 { margin-top: 0; }
.hint { color: var(--muted); font-size: 0.9rem; }
.warn { color: var(--danger); font-size: 0.85rem; }
.hidden { display: none !important; }

input[type="file"] { margin: 12px 0; }

#preview-wrap { margin-top: 16px; }
#pdf-preview {
  width: 100%;
  height: 420px;
  border: 1px solid var(--line);
  border-radius: 8px;
}
#image-preview {
  max-width: 100%;
  max-height: 420px;
  border: 1px solid var(--line);
  border-radius: 8px;
  display: block;
}

#upload-status { margin-top: 12px; font-size: 0.9rem; }

.summary-card {
  margin-top: 16px;
  padding: 16px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
}

dl { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 6px 16px; }
dt { color: var(--muted); font-size: 0.85rem; }
dd { margin: 0; font-weight: 500; }

form label {
  display: block;
  margin-bottom: 14px;
  font-size: 0.9rem;
  color: var(--muted);
}
form input {
  display: block;
  width: 100%;
  margin-top: 4px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  font-size: 0.95rem;
}

button {
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--accent-soft);
  color: var(--ink);
  cursor: pointer;
  font-size: 0.9rem;
}
button:hover { filter: brightness(0.97); }
button[type="submit"] {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.danger, .danger-outline {
  background: transparent;
  color: var(--danger);
  border-color: var(--danger);
}
.danger { background: var(--danger); color: #fff; }

#receipt-list, #service-list { list-style: none; padding: 0; margin: 16px 0 0; }
#receipt-list li, #service-list li {
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.meta { color: var(--muted); margin-left: 8px; font-size: 0.85rem; }
.row-actions { display: flex; gap: 8px; align-items: center; flex-shrink: 0; }
.toggle { display: flex; align-items: center; gap: 6px; font-size: 0.85rem; color: var(--muted); }

.modal {
  position: fixed;
  inset: 0;
  background: rgba(27, 29, 35, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.modal-card {
  background: #fff;
  border-radius: 12px;
  padding: 24px;
  max-width: 480px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  position: relative;
}
.modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  border: none;
  background: none;
  font-size: 1.4rem;
  line-height: 1;
  padding: 4px 8px;
}
.modal-card h4 { margin-bottom: 8px; }
.send-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 0;
}
#detail-send-status { font-size: 0.85rem; margin-top: 8px; }
#detail-raw {
  white-space: pre-wrap;
  font-size: 0.8rem;
  background: var(--accent-soft);
  padding: 10px;
  border-radius: 6px;
  max-height: 200px;
  overflow-y: auto;
}
.modal-card .danger { margin-top: 16px; width: 100%; }

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}