*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --black: #0a0a0a;
  --white: #ffffff;
  --gray-light: #f4f4f4;
  --gray-mid: #d0d0d0;
  --gray-dark: #6b6b6b;
  --accent: #0a0a0a;
  --radius: 4px;
  --gap: 1.5rem;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  background: var(--white);
  color: var(--black);
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

/* ── Header ── */
header {
  text-align: center;
  padding: 3rem 1rem 2rem;
  border-bottom: 1px solid var(--gray-mid);
}

.logo {
  font-size: clamp(2.2rem, 8vw, 3.5rem);
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 1;
}

.tagline {
  margin-top: 0.5rem;
  font-size: 0.95rem;
  color: var(--gray-dark);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* ── Main container ── */
main {
  flex: 1;
  width: 100%;
  max-width: 680px;
  margin: 0 auto;
  padding: 2rem 1rem 4rem;
  display: flex;
  flex-direction: column;
  gap: calc(var(--gap) * 1.5);
}

/* ── Section labels ── */
.section-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gray-dark);
  margin-bottom: 0.75rem;
}

.hours-hint {
  font-size: 0.78rem;
  color: var(--gray-dark);
  margin-top: -0.4rem;
  margin-bottom: 0.75rem;
}

/* ── Day picker ── */
.day-scroll {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  padding-bottom: 0.5rem;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.day-scroll::-webkit-scrollbar { height: 3px; }
.day-scroll::-webkit-scrollbar-track { background: var(--gray-light); }
.day-scroll::-webkit-scrollbar-thumb { background: var(--gray-mid); border-radius: 2px; }

.day-btn {
  flex: 0 0 auto;
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.2rem;
  padding: 0.75rem 1rem;
  border: 1.5px solid var(--gray-mid);
  border-radius: var(--radius);
  background: var(--white);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  min-width: 58px;
}

.day-btn .day-name {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gray-dark);
}

.day-btn .day-num {
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1;
}

.day-btn:hover { border-color: var(--black); }
.day-btn.selected { background: var(--black); border-color: var(--black); color: var(--white); }
.day-btn.selected .day-name { color: rgba(255,255,255,0.65); }

/* ── Time slots ── */
.slots-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: 0.5rem;
}

.slot-btn {
  padding: 0.85rem 0.5rem;
  border: 1.5px solid var(--gray-mid);
  border-radius: var(--radius);
  background: var(--white);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  text-align: center;
  transition: border-color 0.15s, background 0.15s;
}

.slot-btn:hover:not(.opptatt) { border-color: var(--black); }
.slot-btn.selected { background: var(--black); border-color: var(--black); color: var(--white); }

.slot-btn.opptatt {
  color: var(--gray-dark);
  background: var(--gray-light);
  border-color: var(--gray-light);
  cursor: not-allowed;
  text-decoration: line-through;
}

.slots-placeholder {
  color: var(--gray-dark);
  font-size: 0.9rem;
  padding: 0.5rem 0;
}

/* ── Name field ── */
.name-input {
  width: 100%;
  padding: 0.9rem 1rem;
  font-size: 1rem;
  border: 1.5px solid var(--gray-mid);
  border-radius: var(--radius);
  outline: none;
  transition: border-color 0.15s;
  background: var(--white);
  color: var(--black);
}
.name-input:focus { border-color: var(--black); }

/* ── Payment ── */
.payment-options {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.payment-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1rem;
  border: 1.5px solid var(--gray-mid);
  border-radius: var(--radius);
  background: var(--white);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  font-size: 0.95rem;
  text-align: left;
  width: 100%;
}

.payment-btn .pay-label { font-weight: 600; }
.payment-btn .pay-price { color: var(--gray-dark); font-size: 0.9rem; }
.payment-btn:hover { border-color: var(--black); }
.payment-btn.selected { background: var(--black); border-color: var(--black); color: var(--white); }
.payment-btn.selected .pay-price { color: rgba(255,255,255,0.65); }

/* ── Skjegg toggle ── */
.addon-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1rem;
  border: 1.5px solid var(--gray-mid);
  border-radius: var(--radius);
  margin-top: 0.5rem;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  user-select: none;
}
.addon-row:hover { border-color: var(--black); }
.addon-row.active { background: var(--black); border-color: var(--black); color: var(--white); }
.addon-row .addon-label { font-weight: 600; font-size: 0.95rem; }
.addon-row .addon-price { font-size: 0.85rem; color: var(--gray-dark); }
.addon-row.active .addon-price { color: rgba(255,255,255,0.65); }

/* ── Total ── */
.total-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 0;
  border-top: 1px solid var(--gray-mid);
  font-weight: 700;
  font-size: 1.1rem;
}

/* ── Solana flip card ── */
.solana-wrapper {
  perspective: 800px;
  height: 48px;
  margin-top: 0.5rem;
}

.solana-card {
  position: relative;
  width: 100%;
  height: 100%;
  transform-style: preserve-3d;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.solana-card.flipped { transform: rotateX(180deg); }

.solana-front,
.solana-copy {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  cursor: pointer;
  border: none;
  width: 100%;
}

.solana-front {
  background: var(--black);
  color: var(--white);
}

.solana-copy {
  transform: rotateX(180deg);
  background: #512da8;
  color: var(--white);
}

.solana-copy.copied { background: #2e7d32; }

/* ── Confirm button ── */
.confirm-btn {
  width: 100%;
  padding: 1rem;
  background: var(--black);
  color: var(--white);
  border: none;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: opacity 0.15s;
}
.confirm-btn:disabled { opacity: 0.35; cursor: not-allowed; }
.confirm-btn:not(:disabled):hover { opacity: 0.8; }

/* ── Success state ── */
.success-card {
  display: none;
  text-align: center;
  padding: 3rem 1rem;
  gap: 1rem;
  flex-direction: column;
  align-items: center;
}
.success-card.visible { display: flex; }

.success-icon {
  width: 56px;
  height: 56px;
  border: 2.5px solid var(--black);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
}

.success-title { font-size: 1.4rem; font-weight: 800; }
.success-detail { color: var(--gray-dark); line-height: 1.6; }

.new-booking-btn {
  margin-top: 1rem;
  padding: 0.75rem 2rem;
  border: 1.5px solid var(--black);
  border-radius: var(--radius);
  background: var(--white);
  font-weight: 700;
  cursor: pointer;
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  transition: background 0.15s, color 0.15s;
}
.new-booking-btn:hover { background: var(--black); color: var(--white); }

/* ── Error message ── */
.error-msg {
  display: none;
  padding: 0.75rem 1rem;
  border: 1.5px solid #c62828;
  border-radius: var(--radius);
  color: #c62828;
  font-size: 0.9rem;
  font-weight: 600;
}
.error-msg.visible { display: block; }

/* ── Footer ── */
footer {
  text-align: center;
  padding: 1.5rem 1rem;
  border-top: 1px solid var(--gray-mid);
  font-size: 0.85rem;
  color: var(--gray-dark);
  line-height: 1.6;
}

/* ── Responsive tweaks ── */
@media (max-width: 420px) {
  .slots-grid { grid-template-columns: repeat(2, 1fr); }
}