/* ---------- Brand tokens (sampled from hoppr.ai logo + icon) ---------- */
:root {
  --hoppr-navy: #241654;
  --hoppr-navy-700: #1b1142;
  --hoppr-navy-200: #d8d2e6;
  --hoppr-purple: #9c01ff;
  --hoppr-purple-600: #8400dd;
  --hoppr-purple-100: #f3e6ff;

  --ink-900: #0e0e0e;
  --ink-800: #272727;
  --ink-700: #3e3e3e;
  --ink-500: #4a5464;
  --ink-400: #728197;
  --ink-300: #9aa3b1;

  --line: #e3e1ea;
  --bg: #eeeeee;
  --bg-soft: #f6f6f6;
  --card: #ffffff;

  --warn-bg: #fdf3ff;
  --warn-border: #e7c8ff;
  --ok: #137c5a;
  --err: #b2331f;

  --shadow-sm: 0 1px 2px rgba(36, 22, 84, 0.06);
  --shadow-md: 0 14px 38px rgba(36, 22, 84, 0.08);
  --radius: 14px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Poppins", system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial,
    sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink-800);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 28px;
}

a {
  color: var(--hoppr-purple);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

/* ---------- Header ---------- */
.site-header {
  background: #fff;
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 28px;
  gap: 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
}
.brand-logo {
  height: 32px;
  width: auto;
  display: block;
}
.badge {
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 1.6px;
  font-weight: 600;
  color: var(--hoppr-navy);
  border: 1px solid var(--hoppr-navy-200);
  background: #fff;
  padding: 7px 12px;
  border-radius: 999px;
  white-space: nowrap;
}

/* ---------- Research banner ---------- */
.research-banner {
  background: var(--hoppr-navy);
  color: #f3e6ff;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.research-banner .container {
  padding-top: 12px;
  padding-bottom: 12px;
  font-size: 13px;
  line-height: 1.55;
}
.research-banner strong {
  color: #fff;
  font-weight: 700;
}

/* ---------- Screens ---------- */
.screen {
  position: relative;
  background: var(--bg);
  overflow: hidden;
}
.screen[hidden] { display: none; }

/* ---------- Demo head ---------- */
.demo-head {
  padding: 40px 28px 8px 28px;
  position: relative;
  z-index: 1;
}
.demo-title {
  font-family: "Prosto One", "Poppins", serif;
  font-weight: 400;
  font-size: clamp(28px, 4vw, 38px);
  line-height: 1.1;
  letter-spacing: -0.4px;
  color: var(--hoppr-navy);
  margin: 6px 0 6px 0;
}
.demo-sub { margin: 0; }

/* ---------- Hero with subtle brand watermark ---------- */
.hero-wrap {
  position: relative;
  background: var(--bg);
  overflow: hidden;
}
.hero-watermark {
  position: absolute;
  top: -120px;
  right: -180px;
  width: 720px;
  height: 720px;
  background-image: url("./assets/hoppr-icon.png");
  background-size: contain;
  background-repeat: no-repeat;
  background-position: top right;
  opacity: 0.06;
  pointer-events: none;
  filter: saturate(0.6);
  z-index: 0;
}
.hero-grid {
  position: relative;
  padding: 72px 28px 32px 28px;
  z-index: 1;
}
.eyebrow {
  font-family: "Prosto One", "Poppins", serif;
  font-size: 12px;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--hoppr-purple);
  margin: 0 0 14px 0;
}
.hero h1 {
  font-family: "Prosto One", "Poppins", serif;
  font-weight: 400;
  font-size: clamp(36px, 5vw, 56px);
  line-height: 1.05;
  letter-spacing: -0.5px;
  color: var(--hoppr-navy);
  margin: 0 0 18px 0;
  max-width: 18ch;
}
.hero .lede {
  font-size: 17px;
  color: var(--ink-700);
  max-width: 64ch;
  margin: 0;
}

/* ---------- Steps grid ---------- */
.steps-wrap {
  position: relative;
  z-index: 1;
  padding-top: 12px;
  padding-bottom: 24px;
}
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 28px;
  margin: 18px 0;
  box-shadow: var(--shadow-sm);
}
.step {
  opacity: 0.6;
  transition: opacity 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}
.step.active {
  opacity: 1;
  box-shadow: var(--shadow-md);
}
.step.done {
  opacity: 0.9;
}
.step.done .step-num {
  background: var(--ok);
  color: #fff;
}
.step-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 4px;
}
.step-num {
  font-family: "Prosto One", "Poppins", serif;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--hoppr-navy);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}
.step h2 {
  margin: 0;
  font-size: 22px;
  font-weight: 600;
  color: var(--hoppr-navy);
  letter-spacing: -0.2px;
}
.muted {
  color: var(--ink-500);
  margin: 6px 0 18px 0;
  font-size: 14.5px;
}
.muted code,
p code {
  background: var(--bg-soft);
  border: 1px solid var(--line);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 12.5px;
}

/* ---------- Forms ---------- */
.row {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}
.push-right {
  justify-content: flex-end;
  margin-top: 14px;
}
input[type="email"],
input[type="text"] {
  font: inherit;
  flex: 1 1 280px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  color: var(--ink-900);
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}
input[type="email"]:focus,
input[type="text"]:focus {
  border-color: var(--hoppr-purple);
  box-shadow: 0 0 0 3px var(--hoppr-purple-100);
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font: inherit;
  font-weight: 600;
  border: 0;
  background: var(--hoppr-navy);
  color: #fff;
  padding: 12px 22px;
  border-radius: 10px;
  cursor: pointer;
  transition: background 0.15s, transform 0.05s, box-shadow 0.15s;
}
.btn-primary:hover {
  background: var(--hoppr-navy-700);
}
.btn-primary:active {
  transform: translateY(1px);
}
.btn-primary:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--hoppr-purple-100);
}
.btn-primary:disabled {
  background: #c8c4d4;
  color: #fff;
  cursor: not-allowed;
}
.btn-link {
  font: inherit;
  background: transparent;
  border: 0;
  color: var(--hoppr-purple);
  text-decoration: underline;
  cursor: pointer;
  padding: 8px 6px;
}
.btn-link:hover {
  color: var(--hoppr-purple-600);
}

.msg {
  font-size: 14px;
  margin: 12px 0 0 0;
  min-height: 1.2em;
}
.msg.ok {
  color: var(--ok);
}
.msg.err {
  color: var(--err);
}
.msg.info {
  color: var(--ink-500);
}

/* ---------- Dropzone ---------- */
.quota-line {
  font-size: 13.5px;
  color: var(--ink-500);
  margin-bottom: 12px;
}
.dropzone {
  border: 2px dashed var(--line);
  background: var(--bg-soft);
  border-radius: 12px;
  padding: 32px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.dropzone:hover,
.dropzone:focus,
.dropzone.drag {
  border-color: var(--hoppr-purple);
  background: var(--hoppr-purple-100);
  outline: none;
}
.dz-icon {
  font-family: "Prosto One", "Poppins", serif;
  display: inline-block;
  background: var(--hoppr-navy);
  color: #fff;
  font-size: 13px;
  letter-spacing: 1.5px;
  padding: 6px 12px;
  border-radius: 6px;
  margin-bottom: 12px;
}
.dz-title {
  margin: 4px 0;
  font-weight: 600;
  color: var(--hoppr-navy);
}
.dz-sub {
  margin: 4px 0 14px;
  color: var(--ink-400);
  font-size: 13px;
}
.dz-files {
  margin: 14px 0 0 0;
  color: var(--ink-500);
  font-size: 13.5px;
}

/* ---------- Progress stepper ---------- */
.progress {
  margin: 18px 0 0 0;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--bg-soft);
}
.progress-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.prog-item {
  display: grid;
  grid-template-columns: 22px 1fr auto;
  align-items: center;
  gap: 10px;
  padding: 6px 0;
  font-size: 14px;
  color: var(--ink-500);
  position: relative;
}
.prog-item + .prog-item::before {
  content: "";
  position: absolute;
  left: 10px;
  top: -10px;
  height: 16px;
  width: 2px;
  background: var(--line);
}
.prog-bullet {
  display: inline-block;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 2px solid var(--line);
  background: #fff;
  position: relative;
}
.prog-active .prog-bullet {
  border-color: var(--hoppr-purple);
  box-shadow: 0 0 0 4px var(--hoppr-purple-100);
  animation: prog-pulse 1.2s ease-in-out infinite;
}
.prog-active .prog-label { color: var(--hoppr-navy); font-weight: 600; }
.prog-done .prog-bullet {
  border-color: var(--hoppr-navy);
  background: var(--hoppr-navy);
}
.prog-done .prog-bullet::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 1px;
  width: 5px;
  height: 10px;
  border: solid #fff;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}
.prog-done .prog-label { color: var(--ink-700); }
.prog-error .prog-bullet {
  border-color: var(--err);
  background: var(--err);
}
.prog-error .prog-label { color: var(--err); font-weight: 600; }
.prog-detail {
  font-size: 12.5px;
  color: var(--ink-400);
  font-variant-numeric: tabular-nums;
}
@keyframes prog-pulse {
  0%, 100% { box-shadow: 0 0 0 4px var(--hoppr-purple-100); }
  50%      { box-shadow: 0 0 0 7px var(--hoppr-purple-100); }
}

/* ---------- Result ---------- */
.result-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}
.result {
  margin-top: 22px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--bg-soft);
}
.result h3 {
  margin: 0 0 12px 0;
  font-family: "Prosto One", "Poppins", serif;
  font-weight: 400;
  letter-spacing: 0.3px;
  color: var(--hoppr-navy);
}
.result-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 7px 0;
  border-bottom: 1px dashed var(--line);
  font-size: 14.5px;
}
.result-row:last-child {
  border-bottom: 0;
}
.result-row .k {
  color: var(--ink-500);
}
.result-row .v {
  color: var(--ink-900);
  font-weight: 600;
  text-align: right;
  word-break: break-word;
}
.tag {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.3px;
}
.tag.ok {
  background: var(--hoppr-purple-100);
  color: var(--hoppr-purple-600);
}
.tag.warn {
  background: #fff5f1;
  color: var(--err);
  border: 1px solid #f5c1b5;
}

/* ---------- Radiology report panel ---------- */
.report {
  margin-top: 20px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-left: 4px solid var(--hoppr-purple);
  border-radius: 10px;
  background: #fff;
}
.report h4 {
  margin: 0 0 6px 0;
  font-family: "Prosto One", "Poppins", serif;
  font-weight: 400;
  letter-spacing: 0.3px;
  color: var(--hoppr-navy);
}
.report-meta {
  font-size: 12.5px;
  color: var(--ink-500);
  margin-bottom: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 14px;
}
.report-meta span:not(:last-child)::after {
  content: "·";
  margin-left: 14px;
  color: var(--ink-300);
}
.report-body {
  margin: 0;
  padding: 14px;
  background: var(--bg-soft);
  border-radius: 8px;
  border: 1px solid var(--line);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 13px;
  line-height: 1.65;
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--ink-900);
  max-height: 480px;
  overflow: auto;
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  background: #fff;
  margin-top: 56px;
}
.footer-inner {
  padding: 22px 28px;
  font-size: 13px;
  color: var(--ink-500);
}
.footer-fine {
  margin-top: 6px;
  color: var(--ink-400);
  font-size: 12.5px;
}

@media (max-width: 640px) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  .hero-grid {
    padding-top: 48px;
  }
  .hero-watermark {
    top: -200px;
    right: -260px;
    width: 520px;
    height: 520px;
    opacity: 0.05;
  }
}