:root {
  color-scheme: dark;
  --bg: #071a13;
  --ink: #fff7df;
  --muted: #d8cfae;
  --line: rgba(255, 247, 223, 0.18);
  --grass: #0b3d2d;
  --grass-dark: #07271e;
  --lime: #b7ff4d;
  --gold: #ffcf5c;
  --blue: #8ec5ff;
  --red: #ff6f61;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  font-family: Inter, system-ui, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 86% 14%, rgba(255, 207, 92, 0.22), transparent 21rem),
    radial-gradient(circle at 10% 88%, rgba(142, 197, 255, 0.2), transparent 24rem),
    repeating-linear-gradient(
      90deg,
      rgba(255, 255, 255, 0.035) 0,
      rgba(255, 255, 255, 0.035) 1px,
      transparent 1px,
      transparent 96px
    ),
    linear-gradient(115deg, var(--grass-dark), var(--grass) 56%, #10210f);
}

body::before {
  position: fixed;
  inset: 0;
  pointer-events: none;
  content: "";
  background:
    linear-gradient(90deg, transparent 49.85%, var(--line) 49.85%, var(--line) 50.15%, transparent 50.15%),
    radial-gradient(circle at 50% 50%, transparent 0 116px, var(--line) 117px 119px, transparent 120px),
    linear-gradient(var(--line), var(--line));
  background-size: 100% 100%, 100% 100%, min(980px, 72vw) 2px;
  background-position: center, center, center 52%;
  background-repeat: no-repeat;
  opacity: 0.72;
}

.confetti-canvas {
  position: fixed;
  inset: 0;
  z-index: 4;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.page-shell {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 100vh;
  padding: clamp(24px, 6vw, 72px);
}

.hero-card {
  width: min(1180px, 100%);
  margin: 0 auto;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(290px, 410px);
  gap: clamp(34px, 7vw, 96px);
  align-items: center;
}

h1 {
  max-width: 10ch;
  margin: 0;
  font-size: clamp(3.7rem, 11vw, 8.4rem);
  line-height: 0.82;
  letter-spacing: -0.095em;
  text-wrap: balance;
  text-shadow: 0 22px 55px rgba(0, 0, 0, 0.34);
}

.intro {
  max-width: 49ch;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: clamp(1rem, 2vw, 1.15rem);
  line-height: 1.65;
}

.flip-card {
  min-height: 390px;
  perspective: 1300px;
}

.flip-card-inner {
  position: relative;
  width: 100%;
  min-height: 390px;
  transition: transform 680ms cubic-bezier(0.2, 0.85, 0.2, 1);
  transform-style: preserve-3d;
}

.flip-card.is-flipped .flip-card-inner {
  transform: rotateY(180deg);
}

.card-face {
  position: absolute;
  inset: 0;
  overflow: hidden;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  border: 1px solid rgba(255, 247, 223, 0.2);
  border-radius: 34px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.32);
  backdrop-filter: blur(18px);
  transform-style: preserve-3d;
  transition: opacity 120ms ease, visibility 120ms ease;
  isolation: isolate;
}

.card-face::before {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  content: "";
  background:
    radial-gradient(circle at 88% 14%, rgba(183, 255, 77, 0.18), transparent 11rem),
    linear-gradient(135deg, rgba(255, 247, 223, 0.13), rgba(255, 247, 223, 0.04));
}

.card-face > * {
  position: relative;
  z-index: 1;
}

.flip-card.is-flipped .card-front,
.flip-card:not(.is-flipped) .card-back {
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
}

.card-front {
  transform: rotateY(0deg);
  display: grid;
  gap: 16px;
  align-content: center;
  padding: 28px;
  background: rgba(16, 37, 27, 0.9);
}

.card-back {
  transform: rotateY(180deg);
}

.card-kicker {
  position: relative;
  margin: 0 0 6px;
  color: var(--gold);
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 700;
}

select,
button {
  width: 100%;
  min-height: 54px;
  font: inherit;
  border: 0;
  border-radius: 16px;
}

select {
  padding: 0 16px;
  color: var(--ink);
  background: rgba(2, 18, 13, 0.76);
  outline: 1px solid rgba(255, 247, 223, 0.16);
}

button {
  margin-top: 8px;
  cursor: pointer;
  color: #10210f;
  font-weight: 900;
  background: linear-gradient(135deg, var(--lime), var(--gold));
  box-shadow: 0 18px 40px rgba(183, 255, 77, 0.2);
  transition: transform 160ms ease, filter 160ms ease;
}

button:hover {
  filter: brightness(1.08);
  transform: translateY(-2px);
}

.result {
  display: flex;
  flex-direction: column;
  gap: 18px;
  align-items: center;
  justify-content: center;
  min-height: auto;
  padding: 30px;
  text-align: center;
  background: rgba(12, 31, 23, 0.92);
}

.result-icon {
  display: grid;
  flex: 0 0 82px;
  width: 82px;
  height: 82px;
  place-items: center;
  font-size: 2.1rem;
  background: rgba(255, 247, 223, 0.1);
  border: 1px solid rgba(255, 247, 223, 0.18);
  border-radius: 50%;
}

.result h2 {
  margin: 0 0 6px;
  font-size: clamp(1.45rem, 4vw, 2.25rem);
}

.result p {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

.secondary-button {
  width: auto;
  min-height: 46px;
  padding: 0 18px;
  color: var(--ink);
  background: rgba(255, 247, 223, 0.1);
  border: 1px solid rgba(255, 247, 223, 0.18);
  box-shadow: none;
}

.secondary-button:hover {
  background: rgba(255, 247, 223, 0.16);
}

.result.has-goals {
  border-color: rgba(183, 255, 77, 0.42);
  box-shadow: inset 0 28px 70px rgba(183, 255, 77, 0.06);
}

.result.no-goals {
  border-color: rgba(255, 111, 97, 0.42);
  box-shadow: inset 0 28px 70px rgba(255, 111, 97, 0.06);
}

.source {
  width: min(1180px, 100%);
  margin: 22px auto 0;
  color: rgba(255, 247, 223, 0.64);
  font-size: 0.9rem;
  text-align: left;
}

.source a {
  color: var(--blue);
}

.source span {
  display: inline-block;
  margin: 0 10px;
}

@media (max-width: 760px) {
  .page-shell {
    justify-content: flex-start;
    padding: 26px 18px 34px;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  h1 {
    max-width: 10ch;
    font-size: clamp(3.4rem, 18vw, 5.2rem);
  }

  .flip-card,
  .flip-card-inner {
    min-height: 372px;
  }

  .result-icon {
    flex-basis: 58px;
    width: 58px;
    height: 58px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .flip-card-inner {
    transition: none;
  }
}