:root {
  --bg-top: #f7f0df;
  --bg-bottom: #e6efe3;
  --panel: rgba(255, 251, 245, 0.9);
  --text: #17342c;
  --muted: #53655f;
  --line: rgba(23, 52, 44, 0.12);
  --accent: #0d7f59;
  --accent-strong: #06573d;
  --danger: #c4493d;
  --danger-strong: #85261d;
  --shadow: 0 22px 40px rgba(42, 58, 51, 0.12);
  --radius: 24px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Avenir Next", "Trebuchet MS", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top right, rgba(255, 255, 255, 0.75), transparent 32%),
    linear-gradient(180deg, var(--bg-top), var(--bg-bottom));
}

body,
input,
button {
  font-variant-numeric: tabular-nums;
}

.app-shell {
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 20px 14px;
}

.panel {
  width: min(100%, 28rem);
  padding: 22px 18px 18px;
  border-radius: calc(var(--radius) + 6px);
  background: var(--panel);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow);
  border: 1px solid rgba(255, 255, 255, 0.55);
}

.eyebrow {
  margin: 0;
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-strong);
}

h1 {
  margin: 0.35rem 0 0;
  font-size: clamp(2rem, 8vw, 2.75rem);
  line-height: 0.95;
}

.goal-summary,
.support-copy {
  margin: 0.75rem 0 0;
}

.goal-summary {
  font-size: 1rem;
}

.support-copy {
  color: var(--muted);
  line-height: 1.45;
}

#calculator-form {
  margin-top: 1.4rem;
  display: grid;
  gap: 1rem;
}

.field {
  display: grid;
  gap: 0.45rem;
}

.field span {
  font-size: 0.92rem;
  font-weight: 700;
}

.field input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 1rem 1rem;
  font-size: 1.35rem;
  color: var(--text);
  background: rgba(255, 255, 255, 0.95);
  transition: border-color 140ms ease, box-shadow 140ms ease, transform 140ms ease;
}

.field input:focus {
  outline: none;
  border-color: rgba(13, 127, 89, 0.5);
  box-shadow: 0 0 0 4px rgba(13, 127, 89, 0.12);
  transform: translateY(-1px);
}

.time-inputs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.8rem;
}

.time-part {
  display: grid;
  gap: 0.45rem;
}

.time-part span {
  font-size: 0.82rem;
  color: var(--muted);
}

@media (max-width: 380px) {
  .time-inputs {
    gap: 0.55rem;
  }
}

.form-feedback {
  min-height: 1.4rem;
  margin: 0.8rem 0 0;
  color: var(--danger-strong);
  font-size: 0.95rem;
  font-weight: 700;
}

.result-card {
  margin-top: 0.6rem;
  padding: 1rem;
  border-radius: 22px;
  border: 1px solid transparent;
}

.result-card.hidden {
  display: none;
}

.result-card.on-plan {
  background: rgba(13, 127, 89, 0.12);
  border-color: rgba(13, 127, 89, 0.28);
  animation: pulse-on 950ms ease;
}

.result-card.off-plan {
  background: rgba(196, 73, 61, 0.12);
  border-color: rgba(196, 73, 61, 0.24);
  animation: pulse-off 950ms ease;
}

.result-badge {
  display: inline-flex;
  margin: 0;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.on-plan .result-badge {
  color: #f7fffb;
  background: var(--accent-strong);
}

.off-plan .result-badge {
  color: #fff8f7;
  background: var(--danger-strong);
}

.metrics {
  display: grid;
  gap: 0.7rem;
  margin-top: 0.95rem;
}

.metric {
  display: grid;
  gap: 0.2rem;
  padding: 0.8rem 0.85rem;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.62);
}

.metric-label {
  font-size: 0.86rem;
  color: var(--muted);
}

.metric-value {
  font-size: 1.28rem;
  font-weight: 800;
}

@keyframes pulse-on {
  0% {
    transform: scale(0.985);
    box-shadow: 0 0 0 0 rgba(13, 127, 89, 0.16);
  }
  60% {
    transform: scale(1);
    box-shadow: 0 0 0 12px rgba(13, 127, 89, 0);
  }
  100% {
    transform: scale(1);
    box-shadow: none;
  }
}

@keyframes pulse-off {
  0% {
    transform: scale(0.985);
    box-shadow: 0 0 0 0 rgba(196, 73, 61, 0.18);
  }
  60% {
    transform: scale(1);
    box-shadow: 0 0 0 12px rgba(196, 73, 61, 0);
  }
  100% {
    transform: scale(1);
    box-shadow: none;
  }
}

@media (max-width: 380px) {
  .panel {
    padding-inline: 15px;
  }

  .metric-value {
    font-size: 1.15rem;
  }
}