:root {
  --navy: #102a43;
  --navy-2: #173f5f;
  --blue: #2563a8;
  --blue-strong: #174f86;
  --teal: #0d806d;
  --blue-light: #e9f2fb;
  --ink: #17212b;
  --muted: #667788;
  --line: #dce4eb;
  --surface: #ffffff;
  --canvas: #f3f6f8;
  --green: #12745a;
  --green-bg: #e7f6f0;
  --amber: #9a6500;
  --amber-bg: #fff5d9;
  --red: #b22b37;
  --red-bg: #fff0f1;
  --shadow: 0 18px 50px rgba(18, 42, 67, .08);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { overflow-x: hidden; max-width: 100%; }
img { max-width: 100%; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 12% 6%, rgba(37, 99, 168, .09), transparent 28rem),
    radial-gradient(circle at 88% 18%, rgba(13, 128, 109, .07), transparent 25rem),
    var(--canvas);
  font-family: "Yu Gothic", "Hiragino Kaku Gothic ProN", "Segoe UI", sans-serif;
  line-height: 1.7;
}
button, select, input { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; }
[hidden] { display: none !important; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255,255,255,.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
  box-shadow: 0 6px 22px rgba(16, 42, 67, .04);
}
.header-inner {
  width: min(1180px, calc(100% - 40px));
  height: 74px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  display: inline-flex;
  gap: 12px;
  align-items: center;
  text-decoration: none;
  transition: transform .2s ease;
}
.brand:hover { transform: translateY(-1px); }
.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--navy);
  color: white;
  font-weight: 800;
}
.brand strong { display: block; color: var(--navy); font-size: 16px; line-height: 1.25; }
.brand small { display: block; color: var(--muted); font-size: 10px; letter-spacing: .05em; }
.header-links { display: flex; align-items: center; gap: 20px; }
.header-links a {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
}
.header-links a:hover { color: var(--blue); }
.header-links .home-link {
  padding: 7px 11px;
  border: 1px solid #cbdbe8;
  border-radius: 999px;
  color: var(--navy);
  background: #f7fafc;
}
.header-links .home-link:hover {
  border-color: var(--blue);
  background: var(--blue-light);
}
.header-links .nav-guide {
  padding: 7px 12px;
  border-radius: 999px;
  color: var(--blue-strong);
  background: var(--blue-light);
}
.header-links .nav-guide:hover {
  color: white;
  background: var(--blue);
}

main { padding-bottom: 70px; }

.promo-banner {
  width: min(1180px, calc(100% - 40px));
  margin: 26px auto 0;
  border-radius: 20px;
  overflow: hidden;
  line-height: 0;
  border: 1px solid rgba(37, 99, 168, .18);
  box-shadow: 0 20px 55px rgba(16, 42, 67, .16);
}
.promo-banner img { width: 100%; height: auto; display: block; }

.hero {
  position: relative;
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 46px 0 34px;
}
.hero-guide-link {
  margin-top: 26px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 16px;
  padding: 14px 20px;
  border: 1px solid #cfe0ef;
  border-left: 4px solid var(--blue);
  border-radius: 14px;
  background: linear-gradient(180deg, #ffffff, #f4f9fd);
  box-shadow: 0 10px 30px rgba(16, 42, 67, .05);
}
.hero-guide-link span { color: var(--muted); font-size: 13px; font-weight: 700; }
.hero-guide-link a {
  color: var(--blue-strong);
  font-size: 14px;
  font-weight: 800;
  text-decoration: none;
}
.hero-guide-link a:hover { color: var(--navy); text-decoration: underline; }
.eyebrow, .step {
  color: var(--blue);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .16em;
}
.hero h1 {
  margin: 10px 0 16px;
  color: var(--navy);
  font-size: clamp(31px, 4.2vw, 54px);
  line-height: 1.28;
  letter-spacing: -.035em;
}
.hero > p {
  max-width: 760px;
  margin: 0;
  color: var(--muted);
  font-size: 16px;
}
.principle {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 22px;
  padding: 10px 16px;
  border: 1px solid #cfe0ef;
  border-radius: 999px;
  background: #eef6fc;
  color: var(--navy-2);
  font-size: 13px;
}
.principle-icon {
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--blue);
  color: white;
  font-weight: 900;
}
.hero-features {
  max-width: 850px;
  margin-top: 24px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
.hero-features div {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 54px;
  padding: 10px 14px;
  border: 1px solid rgba(207, 224, 239, .9);
  border-radius: 12px;
  background: rgba(255, 255, 255, .72);
  box-shadow: 0 8px 25px rgba(16, 42, 67, .04);
}
.hero-features strong {
  color: var(--blue);
  font-size: 11px;
  letter-spacing: .08em;
}
.hero-features span {
  color: var(--navy);
  font-size: 12px;
  font-weight: 700;
}

.workspace {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(320px, .82fr) minmax(480px, 1.38fr);
  gap: 20px;
  align-items: start;
}
.upload-column, .result-column {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--surface);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.upload-column {
  position: sticky;
  top: 94px;
  padding: 26px;
  border-top: 4px solid var(--blue);
}
.result-column {
  min-height: 610px;
  padding: 26px;
  border-top: 4px solid var(--teal);
}
.panel-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 20px;
}
.panel-heading h2 { margin: 2px 0 0; color: var(--navy); font-size: 20px; line-height: 1.3; }
.text-button {
  border: 0;
  background: none;
  color: var(--blue);
  cursor: pointer;
  font-size: 12px;
  font-weight: 700;
}

.drop-zone {
  min-height: 260px;
  padding: 28px 18px;
  border: 2px dashed #8facbf;
  border-radius: 14px;
  background: linear-gradient(145deg, #fbfdff, #f2f8fc);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  cursor: pointer;
  transition: .2s ease;
}
.drop-zone:hover, .drop-zone.dragover {
  border-color: var(--blue);
  background: var(--blue-light);
  box-shadow: inset 0 0 0 1px rgba(37, 99, 168, .08), 0 12px 28px rgba(37, 99, 168, .08);
  transform: translateY(-2px);
}
.drop-zone input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.upload-icon {
  display: grid;
  place-items: center;
  width: 64px;
  height: 64px;
  margin-bottom: 14px;
  border-radius: 18px;
  background: white;
  box-shadow: 0 8px 24px rgba(37, 99, 168, .13);
  color: var(--blue);
}
.drop-zone strong { color: var(--navy); font-size: 16px; }
.drop-zone > span:not(.upload-icon) { color: var(--muted); font-size: 13px; }
.drop-zone small { margin-top: 12px; color: #8493a1; font-size: 10px; }

.selected-file {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px;
  border: 1px solid #cfdce7;
  border-radius: 12px;
  background: #f8fbfd;
}
.file-badge {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--navy);
  color: white;
  font-size: 10px;
  font-weight: 800;
}
.file-info { min-width: 0; flex: 1; }
.file-info strong {
  display: block;
  overflow: hidden;
  color: var(--navy);
  font-size: 13px;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.file-info small {
  display: block;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.5;
  overflow-wrap: anywhere;
}
.selected-file button {
  width: 30px;
  height: 30px;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 20px;
}
.selected-file button:hover { background: #e8eef3; }

.upload-slot { margin-bottom: 16px; }
.slot-label {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}
.slot-label small { color: var(--muted); font-size: 11px; }
.slot-tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  color: #fff;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .04em;
}
.slot-tag.spec { background: var(--blue); }
.slot-tag.proposal { background: var(--teal); }
.drop-zone.compact { min-height: 128px; padding: 18px 16px; }
.drop-zone.compact .upload-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 10px;
}
.drop-zone.compact strong { font-size: 14px; }
.drop-zone.compact > span:not(.upload-icon) { font-size: 12px; }
.drop-zone.has-files { min-height: 92px; }

.file-list {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.file-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border: 1px solid #cfdce7;
  border-radius: 12px;
  background: #f8fbfd;
}
.file-list .file-badge { width: 40px; height: 40px; }

.upload-help {
  display: block;
  margin: 4px 0 18px;
  color: #8493a1;
  font-size: 11px;
}

.options { margin: 18px 0; }
.options summary { color: var(--muted); cursor: pointer; font-size: 12px; font-weight: 700; }
.option-grid { display: grid; gap: 10px; margin-top: 12px; }
.option-grid label { color: var(--muted); font-size: 11px; font-weight: 700; }
.option-grid select {
  width: 100%;
  margin-top: 4px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
  color: var(--ink);
  font-size: 13px;
}
.primary-button {
  width: 100%;
  min-height: 56px;
  border: 0;
  border-radius: 11px;
  background: linear-gradient(135deg, var(--blue-strong), var(--blue));
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  cursor: pointer;
  font-weight: 800;
  box-shadow: 0 12px 26px rgba(37, 99, 168, .24);
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.primary-button:hover:not(:disabled) {
  background: linear-gradient(135deg, #123f69, #1f5891);
  box-shadow: 0 15px 30px rgba(37, 99, 168, .3);
  transform: translateY(-2px);
}
.primary-button:disabled { opacity: .4; cursor: not-allowed; box-shadow: none; }
.demo-downloads {
  margin-top: 16px;
  padding: 15px;
  border-radius: 10px;
  border: 1px solid #dce8f1;
  background: #f6fafc;
}
.demo-heading {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 11px;
}
.demo-heading strong { display: block; color: var(--navy); font-size: 13px; }
.demo-heading span:not(.demo-badge) { display: block; color: var(--muted); font-size: 10px; }
.demo-badge {
  flex: 0 0 auto;
  padding: 4px 7px;
  border-radius: 6px;
  background: var(--blue);
  color: white;
  font-size: 9px;
  font-weight: 900;
  letter-spacing: .08em;
}
.demo-file-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.demo-file-grid > a {
  min-width: 0;
  padding: 10px;
  border: 1px solid #cdddea;
  border-radius: 9px;
  background: white;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 8px;
  color: var(--navy);
  text-decoration: none;
  transition: border-color .2s ease, transform .2s ease, box-shadow .2s ease;
}
.demo-file-grid > a:hover {
  border-color: var(--blue);
  box-shadow: 0 7px 18px rgba(37, 99, 168, .1);
  transform: translateY(-1px);
}
.demo-file-number {
  color: var(--blue);
  font-size: 10px;
  font-weight: 900;
}
.demo-file-grid strong { display: block; font-size: 11px; line-height: 1.35; }
.demo-file-grid small { display: block; color: var(--muted); font-size: 9px; line-height: 1.35; }
.download-icon {
  display: grid;
  place-items: center;
  width: 23px;
  height: 23px;
  border-radius: 50%;
  background: var(--blue-light);
  color: var(--blue);
  font-size: 12px;
  font-weight: 900;
}
.demo-downloads > p {
  margin: 10px 0 0;
  color: #6d4b05;
  font-size: 9.5px;
  line-height: 1.55;
}

.state-badge, .confidence-badge, .mini-status {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  background: #edf1f4;
  color: var(--muted);
  font-size: 10px;
  font-weight: 800;
}
.state-badge { padding: 5px 10px; }
.state-badge.processing { background: var(--blue-light); color: var(--blue); }
.state-badge.complete { background: var(--green-bg); color: var(--green); }
.state-badge.error { background: var(--red-bg); color: var(--red); }

.empty-state {
  min-height: 490px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--muted);
}
.empty-graphic {
  position: relative;
  width: 96px;
  height: 80px;
  margin-bottom: 22px;
}
.empty-graphic span {
  position: absolute;
  width: 64px;
  height: 44px;
  border: 1px solid #cbd8e2;
  border-radius: 8px;
  background: white;
  box-shadow: 0 5px 14px rgba(18,42,67,.06);
}
.empty-graphic span:nth-child(1) { left: 3px; top: 27px; transform: rotate(-7deg); }
.empty-graphic span:nth-child(2) { right: 3px; top: 25px; transform: rotate(8deg); }
.empty-graphic span:nth-child(3) { left: 17px; top: 8px; border-top: 5px solid var(--blue); }
.empty-state h3 { margin: 0; color: var(--navy); font-size: 17px; }
.empty-state p { margin: 4px 0 14px; font-size: 12px; }
.empty-state ul { margin: 0; padding: 0; list-style: none; font-size: 11px; }
.empty-state li::before { content: "✓"; margin-right: 7px; color: var(--blue); font-weight: 900; }

.loading-state {
  min-height: 490px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}
.loader {
  width: 56px;
  height: 56px;
  border: 4px solid #e5edf3;
  border-top-color: var(--blue);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.loading-state h3 { margin: 18px 0 2px; color: var(--navy); }
.loading-state p { margin: 0; color: var(--muted); font-size: 12px; }
.progress-track {
  width: min(360px, 80%);
  height: 5px;
  margin: 22px 0 15px;
  overflow: hidden;
  border-radius: 999px;
  background: #e6edf2;
}
.progress-track span {
  display: block;
  width: 8%;
  height: 100%;
  border-radius: inherit;
  background: var(--blue);
  transition: width .45s ease;
}
.progress-steps {
  margin: 0;
  padding: 0;
  list-style-position: inside;
  color: #98a4ae;
  font-size: 11px;
  text-align: left;
}
.progress-steps li.active { color: var(--blue); font-weight: 800; }
.progress-steps li.done { color: var(--green); }

.error-state {
  min-height: 490px;
  display: flex;
  gap: 15px;
  align-items: center;
  justify-content: center;
}
.error-icon {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--red-bg);
  color: var(--red);
  font-weight: 900;
}
.error-state h3 { margin: 0; color: var(--red); }
.error-state p { max-width: 460px; margin: 2px 0 0; color: var(--muted); font-size: 12px; }

.case-summary {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 0 2px 18px;
}
.label { color: var(--muted); font-size: 10px; font-weight: 800; letter-spacing: .08em; }
.case-summary h3 { margin: 2px 0 0; color: var(--navy); font-size: 17px; }
.case-summary p { margin: 2px 0 0; color: var(--muted); font-size: 11px; }
.confidence-badge { padding: 5px 9px; color: var(--blue); background: var(--blue-light); white-space: nowrap; }

.decision-banner {
  display: flex;
  gap: 14px;
  padding: 17px;
  border: 1px solid #c9dcec;
  border-radius: 12px;
  background: #f0f7fc;
}
.decision-banner.warning { border-color: #efd48f; background: var(--amber-bg); }
.decision-banner.danger { border-color: #efc0c5; background: var(--red-bg); }
.decision-icon {
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--navy);
  color: white;
  font-weight: 900;
}
.decision-banner h3 { margin: 1px 0; color: var(--navy); font-size: 16px; }
.decision-banner p { margin: 0; color: #526578; font-size: 11px; line-height: 1.6; }

.price-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: 14px 0;
}
.price-card {
  min-width: 0;
  padding: 15px;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: white;
}
.price-card.featured { border-color: #b7d2e7; background: #f6fbff; }
.card-kicker { display: block; color: var(--muted); font-size: 9px; font-weight: 800; }
.price-card > strong {
  display: block;
  margin: 4px 0 6px;
  overflow-wrap: anywhere;
  color: var(--navy);
  font-size: clamp(15px, 1.5vw, 20px);
  line-height: 1.3;
}
.mini-status { padding: 3px 7px; }
.mini-status.good { background: var(--green-bg); color: var(--green); }
.mini-status.warn { background: var(--amber-bg); color: var(--amber); }
.mini-status.bad { background: var(--red-bg); color: var(--red); }
.price-card p { margin: 9px 0 0; color: var(--muted); font-size: 9.5px; line-height: 1.55; }

.detail-section { margin-top: 10px; border: 1px solid var(--line); border-radius: 11px; overflow: hidden; }
.section-toggle {
  width: 100%;
  padding: 13px 15px;
  border: 0;
  background: #f7f9fb;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--navy);
  cursor: pointer;
  font-size: 12px;
  font-weight: 800;
}
.section-number { margin-right: 9px; color: var(--blue); font-size: 9px; letter-spacing: .1em; }
.chevron { width: 8px; height: 8px; border-right: 1.5px solid; border-bottom: 1.5px solid; transform: rotate(45deg); transition: .2s; }
.section-toggle[aria-expanded="false"] .chevron { transform: rotate(-45deg); }
.section-content { padding: 14px; }
.section-toggle[aria-expanded="false"] + .section-content { display: none; }
.formula-box {
  padding: 11px 13px;
  border-left: 3px solid var(--blue);
  background: var(--blue-light);
  color: var(--navy);
  font-family: Consolas, "Yu Gothic", monospace;
  font-size: 10px;
  overflow-wrap: anywhere;
}
.table-scroll { margin-top: 12px; overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 10px; }
th, td { padding: 8px; border-bottom: 1px solid var(--line); text-align: right; }
th { color: var(--muted); background: #f8fafb; font-size: 9px; }
th:first-child, td:first-child { text-align: left; }
.bound-row { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 10px; }
.bound-row span { padding: 4px 7px; border-radius: 6px; background: #f2f5f7; color: var(--muted); font-size: 9px; }
.field-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px 18px;
  margin: 0;
}
.field-grid div { min-width: 0; border-bottom: 1px solid #edf1f4; padding-bottom: 6px; }
.field-grid dt { color: var(--muted); font-size: 9px; }
.field-grid dd { margin: 2px 0 0; overflow-wrap: anywhere; color: var(--navy); font-size: 11px; font-weight: 700; }
.evidence-list { margin: 0; padding: 0; list-style: none; }
.evidence-list li { position: relative; padding: 0 0 8px 17px; color: #46596a; font-size: 10px; }
.evidence-list li::before { content: ""; position: absolute; left: 2px; top: .65em; width: 5px; height: 5px; border-radius: 50%; background: var(--blue); }
.warnings-box { margin-top: 10px; padding: 11px; border-radius: 8px; background: var(--amber-bg); color: #6d4b05; font-size: 10px; }
.warnings-box ul { margin: 4px 0 0; padding-left: 18px; }
.result-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 14px; }
.secondary-button { padding: 8px 12px; border: 1px solid var(--line); border-radius: 8px; background: white; color: var(--navy); cursor: pointer; font-size: 10px; font-weight: 800; }
.secondary-button:hover { border-color: var(--blue); color: var(--blue); }
.legal-note { margin: 12px 0 0; color: #89949e; font-size: 9px; line-height: 1.55; }

.method {
  width: min(1180px, calc(100% - 40px));
  margin: 70px auto 0;
}
.method h2 { margin: 6px 0 24px; color: var(--navy); font-size: 27px; line-height: 1.4; }
.method ol {
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  list-style: none;
}
.method li {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: white;
  box-shadow: 0 8px 25px rgba(16, 42, 67, .04);
  transition: transform .2s ease, box-shadow .2s ease;
}
.method li:hover { transform: translateY(-2px); box-shadow: 0 13px 30px rgba(16, 42, 67, .08); }
.method li > span { display: block; color: var(--blue); font-size: 10px; font-weight: 900; letter-spacing: .12em; }
.method li strong { display: block; margin: 8px 0 5px; color: var(--navy); font-size: 15px; }
.method li p { margin: 0; color: var(--muted); font-size: 11px; }

footer {
  padding: 24px 20px;
  border-top: 1px solid var(--line);
  background: white;
  display: flex;
  justify-content: center;
  gap: 24px;
  color: var(--muted);
  font-size: 10px;
}

@media (max-width: 900px) {
  .workspace { grid-template-columns: 1fr; }
  .upload-column { position: static; }
  .price-grid { grid-template-columns: 1fr; }
}
@media (max-width: 620px) {
  .header-inner, .hero, .workspace, .method, .promo-banner { width: min(100% - 24px, 1180px); }
  .header-links { display: none; }
  .promo-banner { border-radius: 14px; margin-top: 16px; }
  .hero { padding-top: 34px; }
  .hero-guide-link { flex-direction: column; align-items: flex-start; }
  .hero h1 { font-size: 31px; }
  .principle { align-items: flex-start; border-radius: 12px; }
  .hero-features { grid-template-columns: 1fr; }
  .hero-features div { min-height: 48px; }
  .demo-file-grid { grid-template-columns: 1fr; }
  .upload-column, .result-column { padding: 18px; border-radius: 14px; }
  .result-column { min-height: 520px; }
  .field-grid { grid-template-columns: 1fr; }
  .method ol { grid-template-columns: 1fr; }
  footer { flex-direction: column; gap: 0; text-align: center; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
}