:root {
  --navy: #284c84;
  --navy-dark: #344966;
  --cyan: #59c5dc;
  --orange: #f7a52b;
  --green: #2a9d5b;
  --red: #c83c3c;
  --ink: #1f2937;
  --muted: #667085;
  --line: #d8e1ea;
  --bg: #f3f6f9;
  --card: #ffffff;
  --soft-blue: #eaf4fb;
  --radius: 14px;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: "Segoe UI", Arial, sans-serif; }
button, input { font: inherit; }
button { cursor: pointer; }
.app-shell { max-width: 1380px; margin: 0 auto; padding: 14px; }
.app-header { display: flex; align-items: center; gap: 20px; padding: 14px 20px; background: var(--navy-dark); color: white; border-radius: var(--radius); }
.logo-box { width: 275px; height: 84px; background: white; border-radius: 10px; display: grid; place-items: center; padding: 8px 14px; }
.logo-box img { max-width: 100%; max-height: 100%; }
.app-header h1 { margin: 0 0 6px; font-size: 1.85rem; }
.app-header p { margin: 0; opacity: .88; }
.action-panel { margin-top: 14px; background: var(--card); border: 1px solid #e7edf3; border-radius: var(--radius); padding: 14px 18px; display: flex; align-items: end; gap: 18px; box-shadow: 0 3px 12px rgba(34,52,74,.07); }
.setting-group { display: grid; gap: 4px; }
.setting-group label { font-weight: 650; font-size: .88rem; }
.setting-group small { color: var(--muted); font-size: .75rem; }
.unit-input { display: flex; align-items: center; gap: 6px; }
.unit-input input { width: 92px; }
input { width: 100%; border: 1px solid #aebac6; border-radius: 6px; padding: 9px 10px; background: white; color: var(--ink); }
input:focus { outline: 3px solid rgba(89,197,220,.25); border-color: var(--cyan); }
.toggle-row { display: flex; align-items: center; gap: 9px; min-height: 42px; font-size: .88rem; }
.toggle-row input { position: absolute; opacity: 0; pointer-events: none; }
.toggle-ui { width: 38px; height: 22px; border-radius: 20px; background: #b8c1ca; position: relative; transition: .2s; }
.toggle-ui::after { content: ""; width: 16px; height: 16px; background: white; border-radius: 50%; position: absolute; top: 3px; left: 3px; transition: .2s; box-shadow: 0 1px 3px rgba(0,0,0,.25); }
.toggle-row input:checked + .toggle-ui { background: var(--orange); }
.toggle-row input:checked + .toggle-ui::after { transform: translateX(16px); }
.primary-btn, .ghost-btn, .copy-eye-btn, .results-toolbar button, .selected-order button { border: 0; border-radius: 9px; padding: 10px 16px; font-weight: 700; }
.primary-btn { background: var(--orange); color: white; margin-left: auto; }
.primary-btn:hover { filter: brightness(.96); }
.ghost-btn { background: #eef2f6; color: var(--navy-dark); }
.eyes-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 14px; }
.eye-panel { background: var(--card); border: 1px solid #e3eaf1; border-radius: var(--radius); padding: 16px; box-shadow: 0 3px 12px rgba(34,52,74,.07); }
.eye-heading { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; }
.eye-heading > div { display: flex; align-items: center; gap: 10px; }
.eye-heading h2 { margin: 0; color: var(--navy-dark); font-size: 1.22rem; }
.eye-badge { background: var(--navy); color: white; border-radius: 7px; padding: 6px 9px; font-weight: 800; }
.copy-eye-btn { background: var(--soft-blue); color: var(--navy); padding: 8px 11px; font-size: .82rem; }
.copy-eye-btn:disabled { opacity: .45; cursor: default; }
.input-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; }
.input-grid label, .previous-grid label { display: grid; gap: 5px; font-size: .78rem; color: #4a5565; font-weight: 650; }
.input-message { min-height: 22px; padding-top: 6px; color: var(--green); font-size: .78rem; }
.input-message.error { color: var(--red); }
.previous-lens { border-top: 1px solid #edf1f5; margin-top: 6px; padding-top: 10px; }
.previous-lens summary { cursor: pointer; color: var(--navy-dark); font-weight: 700; font-size: .88rem; }
.previous-lens summary span { color: var(--muted); font-weight: 400; margin-left: 4px; }
.previous-grid { display: grid; grid-template-columns: 1.25fr repeat(3, 1fr); gap: 10px; padding-top: 12px; }
.selected-order { position: sticky; top: 8px; z-index: 8; margin-top: 14px; background: #173b70; color: white; border-radius: 12px; box-shadow: 0 8px 22px rgba(23,59,112,.22); overflow: hidden; }
.selected-order-title { display: flex; justify-content: space-between; align-items: center; padding: 10px 16px; background: rgba(0,0,0,.12); font-weight: 800; }
.selected-order button { padding: 7px 10px; background: white; color: #173b70; font-size: .78rem; }
.selected-order-grid { display: grid; grid-template-columns: 1fr 1fr; }
.selected-eye { display: flex; align-items: center; gap: 12px; padding: 12px 16px; }
.selected-eye + .selected-eye { border-left: 1px solid rgba(255,255,255,.25); }
.selected-eye strong { background: white; color: #173b70; padding: 4px 7px; border-radius: 5px; }
.results { margin-top: 14px; }
.results-toolbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; }
.results-toolbar h2 { margin: 0; color: var(--navy-dark); }
.results-toolbar button { background: var(--navy); color: white; }
.result-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; align-items: start; }
.eye-results { min-width: 0; }
.eye-summary { background: var(--soft-blue); border: 1px solid #c9e0ef; border-radius: 11px; padding: 12px 14px; margin-bottom: 10px; }
.eye-summary-top { display: flex; justify-content: space-between; gap: 12px; }
.eye-summary h3 { margin: 0; color: var(--navy-dark); }
.eye-summary p { margin: 5px 0 0; color: #445268; }
.previous-compare { margin-top: 9px; padding-top: 8px; border-top: 1px solid #c9dce9; color: #39485e; font-size: .82rem; }
.lens-card { width: 100%; display: grid; grid-template-columns: 1.35fr 1fr; gap: 12px; text-align: left; background: white; border: 2px solid transparent; border-radius: 12px; padding: 13px 14px; margin-bottom: 10px; box-shadow: 0 2px 9px rgba(34,52,74,.07); transition: .15s; }
.lens-card:hover { border-color: #b9d2e8; transform: translateY(-1px); }
.lens-card.selected { border-color: var(--navy); background: #f4f8fd; box-shadow: 0 0 0 3px rgba(40,76,132,.10); }
.lens-card-title { min-width: 0; }
.lens-card-title h4 { margin: 0 0 3px; color: var(--navy-dark); font-size: 1.03rem; }
.lens-card-title p { margin: 0; color: var(--muted); font-size: .8rem; }
.lens-card-title .status { display: inline-block; margin-top: 8px; padding: 3px 7px; border-radius: 5px; font-size: .72rem; font-weight: 800; background: #eaf6ee; color: #1f7a44; }
.lens-specs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 5px; align-items: center; }
.spec { text-align: center; }
.spec span { display: block; color: var(--muted); font-size: .68rem; text-transform: uppercase; letter-spacing: .04em; }
.spec strong { display: block; margin-top: 3px; font-size: 1.08rem; color: #111827; }
.bitoric-specs { grid-column: 1 / -1; padding-top: 9px; border-top: 1px solid #e6ebf0; font-size: .8rem; color: #4b586a; }
.hidden { display: none !important; }
.toast { position: fixed; right: 18px; bottom: 18px; background: #1f2937; color: white; padding: 10px 14px; border-radius: 8px; opacity: 0; transform: translateY(8px); pointer-events: none; transition: .2s; box-shadow: 0 5px 16px rgba(0,0,0,.2); }
.toast.show { opacity: 1; transform: translateY(0); }
@media (max-width: 980px) {
  .eyes-grid, .result-columns { grid-template-columns: 1fr; }
  .action-panel { flex-wrap: wrap; }
  .primary-btn { margin-left: 0; }
  .selected-order-grid { grid-template-columns: 1fr; }
  .selected-eye + .selected-eye { border-left: 0; border-top: 1px solid rgba(255,255,255,.25); }
}
@media (max-width: 680px) {
  .app-header { align-items: flex-start; flex-direction: column; }
  .logo-box { width: 100%; }
  .input-grid { grid-template-columns: repeat(2, 1fr); }
  .previous-grid { grid-template-columns: repeat(2, 1fr); }
  .lens-card { grid-template-columns: 1fr; }
  .action-panel > * { width: 100%; }
  .primary-btn, .ghost-btn { margin: 0; }
}


/* V1.1 workflow and card cleanup */
input[type="number"] { -moz-appearance: textfield; appearance: textfield; }
input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }

.action-panel {
  margin-top: 14px;
  background: var(--card);
  border: 1px solid #e7edf3;
  border-radius: var(--radius);
  padding: 14px 18px;
  display: flex;
  align-items: end;
  gap: 18px;
  box-shadow: 0 3px 12px rgba(34,52,74,.07);
}
.action-panel .primary-btn { margin-left: auto; }

.lens-card { position: relative; }
.lens-card-title { padding-top: 1px; }
.lens-card-title .status { margin-top: 7px; }
.fit-rule {
  margin-top: 8px !important;
  padding-top: 7px;
  border-top: 1px solid #edf1f5;
  color: #526177 !important;
  font-size: .76rem !important;
  line-height: 1.3;
}

.bitoric-card {
  background: white;
  border: 1px solid #e2e8ef;
  border-radius: 12px;
  margin-bottom: 10px;
  box-shadow: 0 2px 9px rgba(34,52,74,.07);
  overflow: hidden;
}
.bitoric-card summary {
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  padding: 13px 14px;
  cursor: pointer;
  user-select: none;
}
.bitoric-card summary::-webkit-details-marker { display: none; }
.bitoric-card summary::after {
  content: "▾";
  color: var(--navy-dark);
  font-size: 1rem;
  transition: transform .15s;
}
.bitoric-card[open] summary::after { transform: rotate(180deg); }
.bitoric-card summary h4 { margin: 0 0 3px; color: var(--navy-dark); font-size: 1.03rem; }
.bitoric-card summary p { margin: 0; color: var(--muted); font-size: .8rem; }
.bitoric-status {
  margin-left: auto;
  padding: 4px 8px;
  border-radius: 6px;
  font-size: .72rem;
  font-weight: 800;
  white-space: nowrap;
}
.bitoric-card.recommended .bitoric-status { background: #eaf6ee; color: #1f7a44; }
.bitoric-card.not-recommended .bitoric-status { background: #fdecec; color: var(--red); }
.bitoric-card.not-recommended { border-left: 4px solid var(--red); }
.bitoric-card.recommended { border-left: 4px solid var(--green); }
.bitoric-card .lens-card {
  margin: 0;
  border-radius: 0;
  box-shadow: none;
  border-width: 2px 0 0;
}
.bitoric-card .lens-card:hover { transform: none; }

@media (max-width: 980px) {
  .action-panel { flex-wrap: wrap; }
  .action-panel .primary-btn { margin-left: 0; }
}
@media (max-width: 680px) {
  .action-panel > * { width: 100%; }
  .bitoric-card summary { align-items: flex-start; flex-wrap: wrap; }
  .bitoric-status { margin-left: 0; }
}