/* Split the Night — warm, simple, mobile-first. No frameworks. */
* { box-sizing: border-box; }

:root {
  --plum: #4a2340;
  --rose: #b84a6b;
  --rose-dark: #9c3656;
  --cream: #fff8f3;
  --paper: #ffffff;
  --ink: #2b1d27;
  --muted: #6b5a63;
  --line: #ecd9de;
  --gold: #f7c948;
  --green-bg: #e6f4ea;
  --green-ink: #1e6b34;
}

html { font-size: 16px; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.55;
  color: var(--ink);
  background: var(--cream);
  overflow-x: hidden;
}

.hero {
  background: var(--plum);
  color: #fff;
  padding: 2rem 1rem 1.75rem;
  text-align: center;
}

.eyebrow {
  margin: 0 0 0.25rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.8rem;
  color: #f3c6d3;
}

.hero h1 { margin: 0; font-size: 2.25rem; line-height: 1.1; }
.tagline { font-size: 1.15rem; margin: 0.6rem 0; }
.intro { max-width: 42rem; margin: 0 auto; color: #f7e8ec; }

main {
  max-width: 60rem;
  margin: 0 auto;
  padding: 1rem;
  width: 100%;
}

h2 { font-size: 1.4rem; margin: 0 0 0.5rem; color: var(--plum); }
h3 { font-size: 1.05rem; margin: 1.25rem 0 0.5rem; color: var(--plum); }

.muted { color: var(--muted); }
.small { font-size: 0.9rem; }

.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 1rem;
  padding: 1.25rem;
  margin: 1rem 0;
  width: 100%;
}

.banner {
  border-radius: 0.75rem;
  padding: 0.9rem 1rem;
  margin: 1rem 0;
  border: 1px solid var(--line);
  width: 100%;
}
.banner-demo { background: #fff3cd; }
.banner-real { background: var(--green-bg); }

.friend-row, .add-row, .item-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  margin: 0.5rem 0;
  width: 100%;
}

.friend-row label, .add-row label { min-width: 6rem; }
.friend-row input, .add-row input, .item-top input, .item-row select {
  flex: 1 1 10rem;
  min-width: 0;
  padding: 0.55rem 0.7rem;
  border: 1px solid #d9c2c8;
  border-radius: 0.5rem;
  font-size: 1rem;
  background: #fff;
}

button {
  cursor: pointer;
  border: none;
  border-radius: 999px;
  padding: 0.6rem 1.1rem;
  font-size: 1rem;
  font-weight: 600;
}
button:disabled { opacity: 0.6; cursor: default; }

.btn-primary { background: var(--rose); color: #fff; }
.btn-primary:hover { background: var(--rose-dark); }
.btn-secondary { background: #f3e3e8; color: var(--plum); }
.btn-small { padding: 0.4rem 0.8rem; font-size: 0.9rem; }
.btn-danger-outline { background: #fff; color: var(--rose-dark); border: 1px solid #e5b8c3; }
.btn-pay { background: #ffc439; color: #111; border: 1px solid #d9a400; width: 100%; padding: 0.75rem 1rem; }
.btn-pay:hover { background: #f7c948; }

.item-card {
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  padding: 1rem;
  margin: 0.75rem 0;
  width: 100%;
}
.item-top { display: flex; flex-wrap: wrap; gap: 0.5rem; width: 100%; }
.item-top input:first-child { flex: 3 1 12rem; }
.item-top input:last-child { flex: 1 1 7rem; }
.share-label { margin: 0.75rem 0 0.25rem; font-weight: 600; }
.checks { display: flex; flex-wrap: wrap; gap: 0.5rem 1rem; margin: 0.25rem 0 0.75rem; }
.check { display: inline-flex; align-items: center; gap: 0.3rem; }

.summary { font-weight: 700; background: #fdf0f3; padding: 0.75rem 1rem; border-radius: 0.5rem; }
.row-actions { display: flex; flex-wrap: wrap; gap: 0.5rem; }

.dashboard {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.75rem;
  width: 100%;
}
.stat {
  background: #fdf0f3;
  border-radius: 0.75rem;
  padding: 0.9rem;
  text-align: center;
  min-width: 0;
}
.stat-label { display: block; color: var(--muted); font-size: 0.9rem; }
.stat strong { font-size: 1.25rem; color: var(--plum); word-break: break-word; }

#split-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  width: 100%;
}
.split-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 1rem;
  padding: 1.25rem;
  width: 100%;
  min-width: 0;
}
.split-card.is-paid { border-color: #7bc48f; background: var(--green-bg); }
.split-head { display: flex; justify-content: space-between; align-items: baseline; gap: 0.5rem; flex-wrap: wrap; }
.split-head h3 { margin: 0; }
.split-total { font-size: 1.5rem; font-weight: 800; color: var(--plum); margin: 0; }
.why-title { font-weight: 700; margin: 1rem 0 0.25rem; color: var(--plum); }
.why ul { margin: 0.25rem 0; padding-left: 1.25rem; }
.draft-msg { background: #fff8f3; border-left: 4px solid var(--rose); padding: 0.75rem; border-radius: 0 0.5rem 0.5rem 0; }
.pay-area { margin-top: 1rem; }
.paid-note { color: var(--green-ink); font-weight: 700; }
.error-note { color: #9c1c1c; font-weight: 600; }
.paypal-buttons { width: 100%; min-height: 3rem; }

footer { text-align: center; padding: 1.5rem 1rem 2.5rem; color: var(--muted); }

@media (max-width: 700px) {
  .hero h1 { font-size: 1.9rem; }
  .dashboard { grid-template-columns: repeat(2, 1fr); }
  #split-list { grid-template-columns: 1fr; }
}

@media (max-width: 390px) {
  main { padding: 0.75rem; }
  .card { padding: 1rem; }
  .hero { padding: 1.5rem 0.75rem; }
  .hero h1 { font-size: 1.7rem; }
  .stat strong { font-size: 1.1rem; }
  .friend-row input, .add-row input { flex-basis: 100%; }
}