:root {
  --bg: #080b0a;
  --surface: #101412;
  --surface-2: #171d1a;
  --surface-3: #202722;
  --line: rgba(255, 255, 255, 0.09);
  --line-strong: rgba(255, 255, 255, 0.16);
  --text: #f4f1ea;
  --muted: #a9b2ad;
  --soft: #d7ded9;
  --green: #72e3b1;
  --green-strong: #39ff9c;
  --green-dark: #0d6b47;
  --blue: #8fb7ff;
  --danger: #ff947d;
  --shadow: 0 28px 90px rgba(0, 0, 0, 0.44);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 50% 0%, rgba(114, 227, 177, 0.16), transparent 34rem),
    radial-gradient(circle at 0% 90%, rgba(143, 183, 255, 0.11), transparent 26rem),
    var(--bg);
}

button,
input {
  font: inherit;
}

button {
  cursor: pointer;
}

.stage {
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 18px;
  position: relative;
  overflow: hidden;
}

.stage::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.42;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 22px 22px;
  mask-image: radial-gradient(circle at center, black, transparent 74%);
  animation: gridDrift 24s linear infinite;
}

.phone-shell {
  width: min(430px, 100%);
  min-height: calc(100vh - 36px);
  position: relative;
  z-index: 1;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 30px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), transparent 18rem),
    var(--surface);
  box-shadow: var(--shadow);
}

#app {
  min-height: calc(100vh - 38px);
  display: flex;
  flex-direction: column;
}

.app-header {
  position: sticky;
  top: 0;
  z-index: 4;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 18px 12px;
  background: rgba(16, 20, 18, 0.82);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(18px);
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  letter-spacing: 0;
  font-size: 19px;
}

.wordmark-mark {
  width: 9px;
  height: 9px;
  border-radius: 999px;
  background: var(--green);
  box-shadow: 0 0 18px rgba(114, 227, 177, 0.65);
}

.header-pill {
  color: var(--green);
  border: 1px solid rgba(114, 227, 177, 0.25);
  background: rgba(114, 227, 177, 0.08);
  border-radius: 999px;
  padding: 8px 9px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0;
  white-space: nowrap;
}

.screen {
  flex: 1;
  padding: 22px 18px 28px;
  animation: enter 280ms ease both;
}

.form-screen {
  display: flex;
  flex-direction: column;
}

.body-screen {
  padding-bottom: 0;
}

.compact-hero {
  margin-bottom: 24px;
}

.eyebrow {
  color: var(--green);
  font-size: 12px;
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin: 0 0 12px;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  font-size: clamp(34px, 11vw, 52px);
  line-height: 0.98;
  letter-spacing: 0;
  margin-bottom: 14px;
}

h2 {
  font-size: 26px;
  line-height: 1.12;
  margin-bottom: 10px;
}

h3 {
  font-size: 18px;
  line-height: 1.2;
}

.lede {
  color: var(--soft);
  font-size: 17px;
  line-height: 1.5;
  margin-bottom: 18px;
}

.muted {
  color: var(--muted);
}

.trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  padding: 8px 10px;
  border-radius: 999px;
  color: var(--soft);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  font-size: 12px;
  font-weight: 700;
}

.stepper {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 7px;
  margin: 18px 0 22px;
}

.step-pill {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 9px 6px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.035);
  text-align: center;
  font-size: 12px;
  font-weight: 800;
}

.step-pill.active {
  color: #07100c;
  background: var(--green);
  border-color: transparent;
  box-shadow: 0 0 22px rgba(114, 227, 177, 0.22);
}

.step-pill.done {
  color: var(--green);
}

.section-title {
  margin-bottom: 18px;
}

.field-stack {
  display: grid;
  gap: 16px;
}

.body-step-stack {
  display: flex;
  flex-direction: column;
}

.field {
  display: grid;
  gap: 8px;
}

label,
.label {
  color: var(--text);
  font-size: 14px;
  font-weight: 800;
}

.hint {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
  margin-top: -2px;
}

.grid-2 {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 10px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.input {
  width: 100%;
  height: 56px;
  padding: 0 15px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid var(--line);
  border-radius: 17px;
  outline: none;
  font-size: 16px;
  font-weight: 700;
  transition: border-color 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.input::placeholder {
  color: rgba(244, 241, 234, 0.42);
}

.input:focus {
  border-color: rgba(114, 227, 177, 0.7);
  box-shadow: 0 0 0 4px rgba(114, 227, 177, 0.12);
  background: rgba(255, 255, 255, 0.075);
}

.option-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.option-grid.compact {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.option-btn {
  min-height: 52px;
  border-radius: 17px;
  border: 1px solid var(--line);
  color: var(--soft);
  background: rgba(255, 255, 255, 0.045);
  padding: 11px 12px;
  text-align: left;
  font-size: 14px;
  font-weight: 800;
  transition:
    transform 160ms ease,
    background 160ms ease,
    border-color 160ms ease,
    box-shadow 160ms ease,
    color 160ms ease;
}

.option-btn:active {
  transform: scale(0.985);
}

.option-btn.selected {
  color: #06100b;
  background: linear-gradient(180deg, var(--green-strong), var(--green));
  border-color: rgba(114, 227, 177, 0.3);
  box-shadow: 0 0 30px rgba(57, 255, 156, 0.18);
}

.option-btn.wide {
  grid-column: span 2;
}

.body-comp-list {
  display: grid;
  gap: 10px;
}

.body-screen .body-comp-field {
  flex: 1;
}

.body-screen .body-comp-list {
  min-height: clamp(524px, 76dvh, 620px);
  grid-template-rows: repeat(4, minmax(124px, 1fr));
}

.body-comp-card {
  min-height: 92px;
  width: 100%;
  display: grid;
  justify-items: center;
  gap: 5px;
  padding: 15px 14px;
  border-radius: 18px;
  border: 1px solid var(--line);
  color: var(--soft);
  background: rgba(255, 255, 255, 0.04);
  text-align: center;
  transition:
    transform 160ms ease,
    background 160ms ease,
    border-color 160ms ease,
    box-shadow 160ms ease,
    color 160ms ease;
}

.body-screen .body-comp-card {
  min-height: 0;
  align-content: center;
  padding-block: clamp(16px, 2.7dvh, 24px);
}

.body-comp-card:active {
  transform: scale(0.99);
}

.body-comp-card.selected {
  color: var(--text);
  border-color: rgba(114, 227, 177, 0.72);
  background: rgba(114, 227, 177, 0.1);
  box-shadow:
    inset 0 0 0 1px rgba(114, 227, 177, 0.22),
    0 0 26px rgba(57, 255, 156, 0.1);
}

.body-comp-range {
  min-width: 58px;
  min-height: 27px;
  display: inline-grid;
  place-items: center;
  border-radius: 999px;
  color: #07100c;
  background: var(--green);
  padding: 5px 10px;
  font-size: 12px;
  font-weight: 950;
  line-height: 1;
}

.body-comp-title {
  font-size: 15px;
  font-weight: 900;
}

.body-comp-desc {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  line-height: 1.3;
}

.body-comp-card.selected .body-comp-desc {
  color: rgba(244, 241, 234, 0.78);
}

.bottom-bar {
  position: sticky;
  bottom: 0;
  z-index: 5;
  display: flex;
  gap: 10px;
  padding: 12px 18px 18px;
  margin-top: auto;
  background: rgba(16, 20, 18, 0.76);
  border-top: 1px solid rgba(255, 255, 255, 0.07);
  backdrop-filter: blur(20px);
}

.btn {
  min-height: 54px;
  border-radius: 18px;
  border: 1px solid transparent;
  padding: 0 16px;
  font-weight: 900;
  font-size: 15px;
  transition: transform 160ms ease, opacity 160ms ease, box-shadow 160ms ease;
}

.btn:active {
  transform: scale(0.985);
}

.btn.primary {
  flex: 1;
  color: #07100c;
  background: linear-gradient(180deg, var(--green-strong), var(--green));
  box-shadow: 0 14px 32px rgba(57, 255, 156, 0.18);
}

.btn.secondary {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--line);
}

.btn.ghost {
  color: var(--soft);
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--line);
}

.btn.full {
  width: 100%;
}

.error {
  margin-top: 14px;
  color: var(--danger);
  font-weight: 700;
  font-size: 14px;
}

.result-panel {
  border-radius: 24px;
  border: 1px solid var(--line);
  background:
    radial-gradient(circle at 100% 0%, rgba(114, 227, 177, 0.14), transparent 15rem),
    var(--surface-2);
  padding: 18px;
  margin-bottom: 14px;
}

.result-top {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: flex-start;
  margin-bottom: 18px;
}

.diagnosis {
  color: var(--green);
  font-weight: 900;
  letter-spacing: 0.1em;
  font-size: 11px;
  text-transform: uppercase;
}

.zone {
  color: var(--soft);
  font-weight: 800;
  font-size: 14px;
  margin-top: 4px;
}

.stat-label {
  color: var(--muted);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 900;
  margin-bottom: 8px;
}

.calorie-number {
  font-size: 64px;
  line-height: 0.95;
  font-weight: 900;
  letter-spacing: -0.03em;
}

.cutrate-card {
  border: 1px solid rgba(114, 227, 177, 0.35);
  background: rgba(114, 227, 177, 0.08);
  border-radius: 22px;
  padding: 15px;
  margin-top: 14px;
}

.cutrate-number {
  font-size: 46px;
  font-weight: 900;
  letter-spacing: -0.04em;
}

.unit {
  color: var(--muted);
  font-size: 18px;
  font-weight: 900;
}

.rate-rail {
  position: relative;
  margin: 18px 2px 4px;
  padding-top: 22px;
}

.rail-line {
  height: 8px;
  border-radius: 999px;
  background: linear-gradient(90deg, #39ff9c 0%, #72e3b1 38%, #f1d36b 62%, #ff9a62 78%, #ff5f57 100%);
  overflow: hidden;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.12);
}

.rail-fill {
  display: none;
}

.rail-marker {
  position: absolute;
  top: 11px;
  left: var(--marker, 33%);
  width: 24px;
  height: 24px;
  margin-left: -12px;
  border-radius: 999px;
  background: var(--green-strong);
  border: 4px solid var(--surface-2);
  box-shadow: 0 0 24px rgba(57, 255, 156, 0.55);
  transition: left 700ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.rail-labels {
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  font-size: 11px;
  font-weight: 800;
  margin-top: 9px;
}

.rail-risk-labels {
  display: flex;
  justify-content: space-between;
  color: rgba(244, 241, 234, 0.78);
  font-size: 10px;
  font-weight: 900;
  letter-spacing: 0.08em;
  margin-top: 6px;
  text-transform: uppercase;
}

.bento {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: 14px 0;
}

.tile {
  min-height: 96px;
  border: 1px solid var(--line);
  border-radius: 21px;
  background: rgba(255, 255, 255, 0.045);
  padding: 14px;
  animation: tileIn 320ms ease both;
}

.tile.large {
  grid-column: span 2;
}

.tile-value {
  font-size: 28px;
  line-height: 1;
  font-weight: 900;
  letter-spacing: -0.03em;
}

.copy-panel,
.lead-panel,
.success-panel,
.share-card {
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.045);
  padding: 18px;
  margin-top: 14px;
}

.copy-panel p,
.lead-panel p,
.success-panel p {
  color: var(--soft);
  line-height: 1.55;
}

.lead-panel {
  background:
    radial-gradient(circle at 10% 0%, rgba(143, 183, 255, 0.12), transparent 16rem),
    var(--surface-2);
}

.checkbox-row {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  color: var(--soft);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.35;
}

.checkbox-row input {
  width: 21px;
  height: 21px;
  accent-color: var(--green);
  flex: 0 0 auto;
}

.hp-field {
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.share-card {
  background:
    radial-gradient(circle at 100% 0%, rgba(114, 227, 177, 0.18), transparent 13rem),
    linear-gradient(180deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.03));
}

.copy-panel .share-card {
  margin: 16px 0;
}

.share-card .big {
  font-size: 38px;
  line-height: 1;
  font-weight: 900;
  margin: 8px 0;
}

.post-lead-actions {
  display: flex;
  justify-content: center;
  padding: 16px 0 4px;
}

.link-button {
  border: 0;
  background: transparent;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.fine-print {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
  margin-top: 12px;
}

@keyframes enter {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes tileIn {
  from {
    opacity: 0;
    transform: translateY(8px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes gridDrift {
  from {
    background-position: 0 0;
  }
  to {
    background-position: 22px 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    transition-duration: 1ms !important;
  }
}

@media (max-width: 520px) {
  .stage {
    padding: 0;
  }

  .phone-shell {
    min-height: 100vh;
    width: 100%;
    border-radius: 0;
    border: 0;
  }

  #app {
    min-height: 100vh;
  }
}

@media (max-width: 374px) {
  .option-grid.compact {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .bento {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .tile.large {
    grid-column: span 1;
  }

  .calorie-number {
    font-size: 54px;
  }
}