:root {
  --ivory: #f6f0e6;
  --black: #11100f;
  --burgundy: #6d1f32;
  --burgundy-dark: #531526;
  --muted: #756e67;
  --line: rgba(17, 16, 15, .14);
  --serif: "DM Serif Display", Georgia, serif;
  --sans: "Manrope", system-ui, sans-serif;
  --content: min(86vw, 760px);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  background: var(--ivory);
  color: var(--black);
}

body {
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

button, textarea {
  font: inherit;
}

button {
  -webkit-tap-highlight-color: transparent;
}

.app {
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(28px, 6vw, 72px) 0;
}

.screen {
  width: var(--content);
  min-height: calc(100svh - clamp(56px, 12vw, 144px));
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  opacity: 1;
  transition: opacity 260ms ease, transform 260ms ease;
}

.screen.leaving {
  opacity: 0;
  transform: translateY(8px);
}

.screen.entering {
  animation: enter 360ms ease both;
}

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

.brand {
  font: 400 clamp(28px, 5vw, 44px)/1.05 var(--serif);
  letter-spacing: .01em;
  margin: 0 0 28px;
}

.heading {
  font: 400 clamp(34px, 6vw, 58px)/1.1 var(--serif);
  margin: 0;
}

.subheading {
  font: 400 clamp(26px, 5vw, 44px)/1.15 var(--serif);
  margin: 0;
}

.body-copy {
  max-width: 620px;
  margin: 18px auto 0;
  font-size: clamp(16px, 2.2vw, 19px);
  line-height: 1.7;
}

.italic {
  font-style: italic;
}

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

.button-stack {
  width: min(100%, 460px);
  display: grid;
  gap: 12px;
  margin-top: 40px;
}

.choice-button,
.primary-button,
.secondary-button {
  appearance: none;
  border: 1px solid var(--black);
  background: transparent;
  color: var(--black);
  border-radius: 0;
  min-height: 56px;
  padding: 15px 22px;
  cursor: pointer;
  transition: background .18s ease, color .18s ease, border-color .18s ease, transform .18s ease;
}

.choice-button:hover,
.primary-button:hover,
.secondary-button:hover {
  transform: translateY(-1px);
}

.choice-button.selected,
.primary-button {
  background: var(--burgundy);
  border-color: var(--burgundy);
  color: var(--ivory);
}

.choice-button.locked {
  cursor: default;
}

.choice-button .answer-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}

.heart-award {
  color: var(--burgundy);
  font-weight: 700;
  white-space: nowrap;
  animation: heartPop 420ms ease both;
}

.selected .heart-award {
  color: var(--ivory);
}

@keyframes heartPop {
  0% { opacity: 0; transform: scale(.75); }
  55% { opacity: 1; transform: scale(1.12); }
  100% { transform: scale(1); }
}

.question-wrap {
  width: 100%;
}

.question {
  font: 400 clamp(28px, 5vw, 48px)/1.28 var(--serif);
  margin: 0 auto 42px;
  max-width: 720px;
}

.answer-list {
  width: min(100%, 680px);
  margin: 0 auto;
  display: grid;
  gap: 14px;
}

.feedback {
  margin: 30px auto 0;
  max-width: 620px;
  font-size: clamp(15px, 2vw, 18px);
  line-height: 1.65;
  font-style: italic;
}

.transition-title {
  font: 400 clamp(32px, 6vw, 56px)/1.15 var(--serif);
  margin: 0;
}

.transition-note {
  margin-top: 22px;
  font-size: 15px;
  line-height: 1.6;
  max-width: 500px;
}

.heart-reveal {
  font: 400 clamp(36px, 7vw, 70px)/1.05 var(--serif);
  margin: 0;
}

.feedback-result {
  margin: 30px auto 0;
  max-width: 650px;
  font-size: clamp(16px, 2.2vw, 20px);
  line-height: 1.7;
  font-style: italic;
}

.result-page {
  justify-content: flex-start;
  padding-top: clamp(18px, 5vh, 64px);
  padding-bottom: 24px;
}

.result-section {
  width: 100%;
  padding: clamp(26px, 5vw, 54px) 0;
  border-bottom: 1px solid var(--line);
}

.result-section:last-of-type {
  border-bottom: 0;
}

.section-title {
  font: 400 clamp(25px, 4.5vw, 38px)/1.15 var(--serif);
  margin: 0 0 30px;
}

.terms {
  width: 100%;
  display: grid;
  gap: 28px;
  text-align: left;
}

.term h3,
.benefit h3 {
  margin: 0 0 7px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .02em;
}

.term p,
.benefit p {
  margin: 0;
  font-size: 16px;
  line-height: 1.65;
  font-style: italic;
}

.confirm-wrap {
  width: 100%;
  padding-top: 26px;
}

.confirm-wrap .primary-button {
  width: min(100%, 460px);
}

.benefits {
  width: 100%;
  display: grid;
  gap: 30px;
  text-align: left;
}

.benefit {
  padding-bottom: 26px;
  border-bottom: 1px solid var(--line);
}

.benefit:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.benefit h3 {
  font-size: 16px;
}

.final-screen {
  gap: 12px;
}

.final-kiss {
  font: 400 clamp(46px, 9vw, 88px)/1 var(--serif);
  margin: 0;
}

.final-kiss-sub {
  font: 400 clamp(28px, 6vw, 56px)/1.1 var(--serif);
  margin: 0;
}

.textarea-wrap {
  width: min(100%, 680px);
  margin: 0 auto;
}

textarea {
  width: 100%;
  min-height: 190px;
  resize: vertical;
  border: 1px solid var(--black);
  border-radius: 0;
  background: transparent;
  color: var(--black);
  padding: 18px;
  outline: none;
  line-height: 1.6;
}

textarea:focus {
  border-color: var(--burgundy);
  box-shadow: 0 0 0 1px var(--burgundy);
}

.submit-row {
  margin-top: 18px;
}

.error-message {
  margin-top: 18px;
  color: var(--burgundy);
  font-size: 14px;
  line-height: 1.5;
}

.loading {
  font: 400 28px/1.2 var(--serif);
}

@media (max-width: 640px) {
  :root { --content: 86vw; }
  .app { padding-left: 0; padding-right: 0; }
  .screen { min-height: calc(100svh - 56px); }
  .choice-button, .primary-button, .secondary-button { min-height: 54px; }
  .result-page { min-height: auto; }
}