/* ============================================================
   EndoIntel AI — design system
   Palette drawn from the Lawson Endodontics logo (navy / blue)
   ============================================================ */

:root {
  --navy-900: #10263d;
  --navy-800: #16324f;
  --navy-700: #1d4066;
  --blue-600: #2f6fa8;
  --blue-500: #3d84c4;
  --sky-300:  #8fbede;
  --sky-100:  #e8f1f8;
  --bg:       #f4f7fa;
  --card:     #ffffff;
  --ink:      #1a2733;
  --muted:    #5d6f80;
  --border:   #dde6ee;
  --success:  #1e8e5a;
  --success-bg: #e6f5ee;
  --warning:  #b07d10;
  --warning-bg: #fdf3dd;
  --danger:   #c0392b;
  --danger-bg: #fdecea;
  --accent:   #c0392b;
  --radius:   14px;
  --radius-sm: 9px;
  --shadow:   0 1px 2px rgba(16,38,61,.06), 0 8px 24px rgba(16,38,61,.07);
  --shadow-lg: 0 2px 4px rgba(16,38,61,.08), 0 16px 40px rgba(16,38,61,.12);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Playfair Display', Georgia, serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  font-size: 16px;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

/* ---------- Top bar ---------- */
.topbar {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(8px);
}
.topbar-inner {
  max-width: 1160px;
  margin: 0 auto;
  padding: 10px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.brand-logo { height: 54px; width: auto; }
.topbar-badges { display: flex; gap: 8px; flex-wrap: wrap; }

.pill {
  font-size: .74rem;
  font-weight: 600;
  letter-spacing: .02em;
  padding: 5px 12px;
  border-radius: 999px;
  white-space: nowrap;
}
.pill-safe { background: var(--success-bg); color: var(--success); border: 1px solid #bfe5d2; }
.pill-ai   { background: var(--sky-100); color: var(--blue-600); border: 1px solid #cfe2f0; }

/* ---------- Hero ---------- */
.hero {
  background:
    radial-gradient(1100px 420px at 85% -60%, rgba(61,132,196,.35), transparent 60%),
    radial-gradient(900px 400px at -10% 120%, rgba(47,111,168,.28), transparent 55%),
    linear-gradient(135deg, var(--navy-900) 0%, var(--navy-800) 55%, var(--navy-700) 100%);
  color: #f2f7fb;
  padding: 64px 24px 72px;
}
.hero-inner { max-width: 1160px; margin: 0 auto; }
.hero-title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(2rem, 4.4vw, 3.2rem);
  line-height: 1.15;
  margin-bottom: 18px;
}
.hero-title em { font-style: italic; color: var(--sky-300); }
.hero-sub {
  max-width: 640px;
  font-size: 1.06rem;
  color: #c9dcec;
  margin-bottom: 26px;
}
.hero-points { display: flex; flex-direction: column; gap: 10px; margin-bottom: 28px; }
.point { display: flex; align-items: baseline; gap: 10px; color: #e2eef7; font-size: .98rem; }
.point em { color: var(--sky-300); font-style: normal; font-weight: 600; }
.point-icon { color: var(--sky-300); font-size: .6rem; flex: 0 0 auto; }
.hero-credit { font-size: .9rem; color: #9db8cf; }
.hero-credit strong { color: #dcebf7; }

/* ---------- Layout ---------- */
.layout {
  max-width: 1160px;
  margin: -34px auto 0;
  padding: 0 24px 24px;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
  gap: 24px;
  align-items: start;
}

.panel {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px;
}
.panel-report { position: sticky; top: 86px; }

.panel-head h2 {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -.01em;
  margin-bottom: 4px;
}
.panel-sub, .meta { color: var(--muted); font-size: .92rem; }
.panel-head { margin-bottom: 18px; }

/* ---------- Notices ---------- */
.notice {
  border-radius: var(--radius-sm);
  padding: 13px 16px;
  font-size: .92rem;
  margin-bottom: 22px;
}
.notice-privacy {
  background: var(--sky-100);
  border: 1px solid #cfe2f0;
  color: var(--navy-700);
}

/* ---------- Form steps ---------- */
.step { margin-bottom: 22px; }
.step-label {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}
.step-num {
  flex: 0 0 auto;
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--navy-800);
  color: #fff;
  font-size: .72rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.step-label label { font-weight: 600; font-size: .97rem; }
.hint-inline { font-weight: 400; color: var(--muted); font-size: .85rem; }

input[type="text"], textarea {
  width: 100%;
  padding: 11px 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-family: var(--font);
  color: var(--ink);
  background: #fbfdfe;
  transition: border-color .15s, box-shadow .15s;
}
input[type="text"]:focus, textarea:focus {
  outline: none;
  border-color: var(--blue-500);
  box-shadow: 0 0 0 3px rgba(61,132,196,.15);
  background: #fff;
}
textarea { resize: vertical; min-height: 92px; }
::placeholder { color: #9fb0bf; }

/* ---------- Symptom pills ---------- */
.symptoms-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: 8px;
}
.checkbox-label {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 9px 10px;
  border: 1.5px solid var(--border);
  border-radius: 999px;
  font-size: .86rem;
  font-weight: 500;
  color: var(--muted);
  background: #fbfdfe;
  cursor: pointer;
  user-select: none;
  transition: all .15s;
}
.checkbox-label:hover { border-color: var(--sky-300); color: var(--navy-700); }
.checkbox-label input { position: absolute; opacity: 0; pointer-events: none; }
.checkbox-label:has(input:checked) {
  background: var(--navy-800);
  border-color: var(--navy-800);
  color: #fff;
}
.checkbox-label:has(input:focus-visible) { box-shadow: 0 0 0 3px rgba(61,132,196,.3); }

/* ---------- Dropzone ---------- */
.dropzone {
  position: relative;
  border: 2px dashed #b9cfe0;
  border-radius: var(--radius-sm);
  background: var(--sky-100);
  padding: 26px 16px;
  text-align: center;
  color: var(--navy-700);
  cursor: pointer;
  transition: all .15s;
}
.dropzone:hover, .dropzone:focus-visible, .dropzone.dragover {
  border-color: var(--blue-500);
  background: #ddecf7;
  outline: none;
}
.dropzone input[type="file"] {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  opacity: 0;
  cursor: pointer;
}
.dropzone-icon { color: var(--blue-600); display: flex; justify-content: center; margin-bottom: 6px; }
.dropzone-text { font-size: .96rem; }
.dropzone-hint { font-size: .8rem; color: var(--muted); margin-top: 3px; }

/* ---------- Previews ---------- */
.previews {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 10px;
  margin-top: 12px;
}
.thumb {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(16,38,61,.07);
}
.thumb img { width: 100%; height: 96px; object-fit: cover; }
.thumb .file-alt {
  height: 96px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .78rem;
  color: var(--muted);
  background: var(--sky-100);
  padding: 6px;
  text-align: center;
  word-break: break-word;
}
.thumb .analysis { padding: 7px 8px; font-size: .76rem; color: var(--muted); border-top: 1px solid var(--border); }
.thumb .remove-file {
  width: 100%;
  border: 0;
  background: transparent;
  color: var(--danger);
  font-size: .75rem;
  font-weight: 600;
  padding: 6px;
  cursor: pointer;
}
.thumb .remove-file:hover { background: var(--danger-bg); }

#analysis-results { margin-top: 10px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 0;
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: .97rem;
  font-weight: 600;
  padding: 12px 20px;
  cursor: pointer;
  transition: all .15s;
  text-decoration: none;
}
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn:not(:disabled):active { transform: translateY(1px); }

.btn-primary {
  background: linear-gradient(135deg, var(--navy-800), var(--blue-600));
  color: #fff;
  box-shadow: 0 4px 14px rgba(22,50,79,.28);
}
.btn-primary:not(:disabled):hover { box-shadow: 0 6px 18px rgba(22,50,79,.38); filter: brightness(1.06); }

.btn-lg { padding: 14px 28px; font-size: 1.05rem; }

.btn-ghost {
  background: transparent;
  color: var(--muted);
  border: 1.5px solid var(--border);
}
.btn-ghost:hover { color: var(--navy-700); border-color: var(--sky-300); background: var(--sky-100); }

.btn-outline {
  background: #fff;
  color: var(--navy-700);
  border: 1.5px solid var(--navy-700);
}
.btn-outline:not(:disabled):hover { background: var(--sky-100); }

.btn-accent {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 14px rgba(192,57,43,.25);
}
.btn-accent:not(:disabled):hover { filter: brightness(1.08); }

.submit-row { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 26px; }
.submit-row .btn-lg { flex: 1 1 auto; }

/* ---------- Loading / error ---------- */
.loading {
  display: none;
  align-items: center;
  gap: 10px;
  margin-top: 16px;
  color: var(--blue-600);
  font-weight: 500;
  font-size: .94rem;
}
.spinner {
  width: 18px; height: 18px;
  border: 2.5px solid rgba(61,132,196,.25);
  border-top-color: var(--blue-600);
  border-radius: 50%;
  animation: spin .8s linear infinite;
  flex: 0 0 auto;
}
@keyframes spin { to { transform: rotate(360deg); } }

.error-banner {
  display: none;
  margin-top: 14px;
  background: var(--danger-bg);
  border: 1px solid #f2c4bd;
  color: var(--danger);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-size: .92rem;
}

/* ---------- Report ---------- */
.report-grid { display: flex; flex-direction: column; gap: 12px; }

.report-empty {
  border: 1.5px dashed var(--border);
  border-radius: var(--radius-sm);
  padding: 40px 24px;
  text-align: center;
  color: #9fb0bf;
}
.report-empty svg { margin: 0 auto 12px; }
.report-empty p { font-size: .92rem; max-width: 300px; margin: 0 auto; }

.card {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  background: #fcfdfe;
  animation: cardIn .35s ease both;
}
@keyframes cardIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
.card h4 {
  font-size: .78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--blue-600);
  margin-bottom: 7px;
}
.card ul.clean { list-style: none; }
.card ul.clean li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 5px;
  font-size: .93rem;
}
.card ul.clean li::before {
  content: "";
  position: absolute;
  left: 2px; top: .55em;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--sky-300);
}
.card > div { font-size: .95rem; }

.badge {
  display: inline-block;
  font-size: .8rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 999px;
}
.badge.good { background: var(--success-bg); color: var(--success); }
.badge.warn { background: var(--warning-bg); color: var(--warning); }
.badge.bad  { background: var(--danger-bg); color: var(--danger); }

.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip {
  display: inline-block;
  background: var(--sky-100);
  color: var(--navy-700);
  border: 1px solid #cfe2f0;
  font-size: .78rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 999px;
}

.muted { color: var(--muted); }
.small { font-size: .84rem; }

/* ---------- Report actions ---------- */
.action-buttons {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
}
.action-buttons .btn { width: 100%; }
.email-row { display: flex; flex-direction: column; gap: 6px; margin-top: 4px; }
.mail-status { font-size: .88rem; font-weight: 600; }
.mail-status.ok { color: var(--success); }
.mail-status.fail { color: var(--danger); }

.meta .success-line { color: var(--success); font-weight: 700; }

/* ---------- Bands ---------- */
.band { padding: 26px 24px; }
.band-inner { max-width: 1160px; margin: 0 auto; }

.band-disclaimer {
  background: var(--warning-bg);
  border-top: 1px solid #f0e2bd;
  border-bottom: 1px solid #f0e2bd;
  color: #6b5a1e;
  font-size: .9rem;
}

.band-share { background: var(--card); border-bottom: 1px solid var(--border); }
.share-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.share-text h3 { font-size: 1.1rem; margin-bottom: 4px; }
.share-text p { color: var(--muted); font-size: .92rem; }
.qr-box {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px;
  box-shadow: var(--shadow);
}
.qr-box img, .qr-box canvas { display: block; }

/* ---------- Footer ---------- */
.footer { padding: 22px 24px 34px; }
.footer-inner {
  max-width: 1160px;
  margin: 0 auto;
  color: var(--muted);
  font-size: .84rem;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.footer-sep { color: var(--border); }

/* ---------- Responsive ---------- */
@media (max-width: 940px) {
  .layout { grid-template-columns: 1fr; margin-top: -26px; }
  .panel-report { position: static; }
  .hero { padding: 44px 20px 56px; }
  .panel { padding: 22px 18px; }
  .brand-logo { height: 44px; }
  .topbar-badges .pill-ai { display: none; }
}

@media (max-width: 520px) {
  .symptoms-grid { grid-template-columns: 1fr 1fr; }
  .submit-row { flex-direction: column; }
  .submit-row .btn { width: 100%; }
}

/* ---------- Top navigation ---------- */
.topnav { display: flex; gap: 4px; align-items: center; }
.topnav-link {
  text-decoration: none;
  font-size: .92rem;
  font-weight: 600;
  color: var(--muted);
  padding: 8px 14px;
  border-radius: 999px;
  transition: all .15s;
}
.topnav-link:hover { color: var(--navy-700); background: var(--sky-100); }
.topnav-link.active { color: #fff; background: var(--navy-800); }
.brand a { display: block; }

/* ---------- Trauma Guide wizard ---------- */
.hero-compact { padding: 44px 24px 60px; }
.layout-single { grid-template-columns: 1fr; max-width: 880px; }

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }

.choice-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 10px;
}
.choice {
  text-align: left;
  background: #fbfdfe;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  cursor: pointer;
  font-family: var(--font);
  display: flex;
  flex-direction: column;
  gap: 3px;
  transition: all .15s;
}
.choice:hover { border-color: var(--sky-300); background: var(--sky-100); }
.choice.selected {
  border-color: var(--navy-800);
  background: var(--navy-800);
}
.choice.selected .choice-title, .choice.selected .choice-desc { color: #fff; }
.choice-title { font-weight: 600; font-size: .93rem; color: var(--ink); }
.choice-desc { font-size: .8rem; color: var(--muted); line-height: 1.4; }

@media (max-width: 520px) {
  .choice-grid { grid-template-columns: 1fr; }
  .two-col { grid-template-columns: 1fr; }
  .topnav-link { padding: 7px 10px; font-size: .84rem; }
}

/* ---------- Print: report only ---------- */
@media print {
  .topbar, .hero, .panel-form, .band-share, .footer, .action-buttons, .band-disclaimer { display: none !important; }
  .layout { display: block; margin: 0; padding: 0; }
  .panel { box-shadow: none; border: 0; }
  body { background: #fff; }
}