:root {
  --green:      #5E9E7E;
  --green-dark: #3D7A5E;
  --green-light:#EAF4EF;
  --green-mid:  #7AB89A;
  --border:     #B0D0C0;
  --bg:         #f4f7f5;
  --white:      #ffffff;
  --text:       #1a1a1a;
  --muted:      #666666;
  --req:        #e53935;
  --shadow:     0 2px 16px rgba(61,122,94,0.10);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'Hiragino Kaku Gothic ProN','Meiryo','Noto Sans JP',sans-serif; background: var(--bg); color: var(--text); font-size: 14px; line-height: 1.6; }

/* ── Header ── */
header {
  background: #ffffff;
  border-bottom: 1px solid #e0ebe4;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  padding: 0 2rem;
  height: 68px;
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-inner { max-width: 900px; margin: 0 auto; height: 100%; display: flex; align-items: center; gap: 0; }
.logo-link { text-decoration: none; flex-shrink: 0; display: flex; align-items: center; }
.logo-img { height: 44px; width: auto; display: block; }
.header-service-name {
  font-size: 0.8rem;
  color: #999;
  border-left: 1px solid #ddd;
  padding-left: 1.25rem;
  margin-left: 1.25rem;
  white-space: nowrap;
}

/* ── Main ── */
.main { max-width: 860px; margin: 0 auto; padding: 32px 20px 60px; }

/* ── Hero ── */
.hero { text-align: center; margin-bottom: 24px; }
.hero h1 { font-size: 1.7rem; font-weight: 700; color: var(--green-dark); margin-bottom: 6px; }
.hero p { font-size: 0.95rem; color: var(--muted); max-width: 600px; margin: 0 auto; }

/* ── Card ── */
.card { background: var(--white); border-radius: 12px; padding: 28px 32px; box-shadow: var(--shadow); border: 1px solid var(--border); margin-bottom: 20px; }

/* ── Step Header ── */
.step-header { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 20px; }
.step-badge {
  background: var(--green);
  color: white;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0.25rem 0.8rem;
  border-radius: 20px;
  white-space: nowrap;
}

/* ── Form ── */
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 5px; margin-bottom: 16px; }
.form-group label { font-size: 13px; font-weight: 600; color: var(--green-dark); }
.label-note { font-weight: 400; font-size: 11px; color: var(--muted); }
.req { background: var(--req); color: #fff; font-size: 10px; font-weight: 600; padding: 1px 5px; border-radius: 3px; margin-left: 4px; vertical-align: middle; }
input[type=text], select {
  padding: 10px 12px; border: 1.5px solid var(--border); border-radius: 8px;
  font-size: 14px; font-family: inherit; color: var(--text); background: #fff;
  transition: border-color .2s, box-shadow .2s;
}
input[type=text]:focus, select:focus { outline: none; border-color: var(--green); box-shadow: 0 0 0 3px rgba(94,158,126,.15); }

/* ── Upload ── */
.upload-area {
  border: 2px dashed var(--border); border-radius: 10px; padding: 28px 20px;
  text-align: center; cursor: pointer; background: var(--green-light);
  transition: border-color .2s, background .2s;
}
.upload-area:hover, .upload-area.dragover { border-color: var(--green); background: #d4ede3; }
.upload-icon { font-size: 32px; margin-bottom: 8px; }
.upload-text { font-size: 14px; font-weight: 600; color: var(--green-dark); margin-bottom: 4px; }
.upload-sub { font-size: 11px; color: var(--muted); }

/* ── File List ── */
.file-list { margin-top: 10px; display: flex; flex-direction: column; gap: 6px; }
.file-item {
  display: flex; align-items: center; gap: 8px;
  background: var(--green-light); border: 1px solid var(--border); border-radius: 6px; padding: 7px 12px; font-size: 13px;
}
.file-item-name { flex: 1; color: var(--green-dark); font-weight: 500; }
.file-item-size { color: var(--muted); font-size: 11px; }
.file-item-remove { cursor: pointer; color: #999; font-size: 16px; line-height: 1; border: none; background: none; padding: 0 2px; }
.file-item-remove:hover { color: var(--req); }

/* ── Submit Area ── */
.submit-area { text-align: center; margin-top: 8px; }

/* ── Generate Button ── */
.btn-generate {
  width: 100%; padding: 16px;
  background: var(--green); color: #fff;
  border: none; border-radius: 10px; font-size: 16px; font-weight: 700; font-family: inherit;
  cursor: pointer; transition: background .2s, transform .1s, box-shadow .2s;
  letter-spacing: 1px;
  box-shadow: 0 4px 14px rgba(94,158,126,.35);
}
.btn-generate:hover:not(:disabled) { background: var(--green-dark); box-shadow: 0 6px 18px rgba(61,122,94,.4); transform: translateY(-1px); }
.btn-generate:disabled { opacity: 0.4; cursor: not-allowed; box-shadow: none; }

/* ── Info Cards ── */
.info-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 4px; }
.info-card { background: var(--white); border-radius: 10px; padding: 18px 16px; text-align: center; border: 1px solid var(--border); box-shadow: var(--shadow); }
.info-icon { font-size: 26px; margin-bottom: 8px; }
.info-title { font-size: 13px; font-weight: 700; color: var(--green-dark); margin-bottom: 4px; }
.info-body { font-size: 11px; color: var(--muted); line-height: 1.5; }

/* ── Error ── */
.error-msg { background: #fff0f0; border: 1px solid #ffb3b3; border-radius: 8px; padding: 10px 14px; color: #c0392b; font-size: 13px; margin-top: 12px; }

/* ── Loading ── */
.loading-card { background: var(--white); border-radius: 12px; padding: 60px 32px; box-shadow: var(--shadow); border: 1px solid var(--border); text-align: center; }
.spinner { width: 52px; height: 52px; border: 4px solid var(--border); border-top: 4px solid var(--green); border-radius: 50%; animation: spin .8s linear infinite; margin: 0 auto 24px; }
@keyframes spin { to { transform: rotate(360deg); } }
.loading-title { font-size: 18px; font-weight: 700; color: var(--green-dark); margin-bottom: 8px; }
.loading-sub { font-size: 13px; color: var(--muted); }

/* ── Report ── */
.report-header { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 16px; gap: 16px; flex-wrap: wrap; }
.report-title { font-size: 20px; font-weight: 700; color: var(--green-dark); }
.report-subtitle { font-size: 13px; color: var(--muted); margin-top: 2px; }
.report-actions { display: flex; gap: 10px; flex-shrink: 0; }
.btn-primary { padding: 10px 20px; background: var(--green); color: #fff; border: none; border-radius: 8px; font-size: 14px; font-weight: 600; font-family: inherit; cursor: pointer; transition: background .2s; }
.btn-primary:hover:not(:disabled) { background: var(--green-dark); }
.btn-primary:disabled { opacity: .5; cursor: not-allowed; }
.btn-secondary { padding: 10px 18px; background: transparent; color: var(--green-dark); border: 1.5px solid var(--green); border-radius: 8px; font-size: 14px; font-weight: 600; font-family: inherit; cursor: pointer; transition: background .2s; }
.btn-secondary:hover { background: var(--green-light); }
.report-wrapper { background: #fff; border-radius: 12px; box-shadow: var(--shadow); border: 1px solid var(--border); overflow: hidden; }
.report-frame { width: 100%; height: 860px; border: none; display: block; }

/* ── Footer ── */
footer {
  background: #3a3a3a;
  padding: 2.5rem 2rem 2rem;
  margin-top: 4rem;
}
.footer-inner { max-width: 900px; margin: 0 auto; }
.footer-logo { margin-bottom: 1.5rem; text-align: center; }
.footer-logo-img { height: 26px; width: auto; display: inline-block; filter: brightness(0) invert(1); }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 1rem; }
.footer-spacer { display: none; }
.footer-nav { display: flex; gap: 2rem; flex-wrap: wrap; }
.footer-nav a { color: rgba(255,255,255,0.7); text-decoration: none; font-size: 0.83rem; transition: color .2s; }
.footer-nav a:hover { color: #ffffff; }
.footer-copy { flex: 1; text-align: right; color: rgba(255,255,255,0.45); font-size: 0.78rem; white-space: nowrap; min-width: 0; }

/* ── Utility ── */
.hidden { display: none !important; }

@media (max-width: 600px) {
  .form-row { grid-template-columns: 1fr; }
  .info-cards { grid-template-columns: 1fr; }
  .card { padding: 20px 16px; }
  .report-header { flex-direction: column; }
  .report-frame { height: 600px; }
}