/* party.css — chassis P-A shared design tokens + minimal components.
   Dark, high-energy, party-neutral. No framework. Touch targets >=48px.
   Type scale readable at arm's length (phone passed around a table). */

:root {
  /* ── color ── */
  --pty-bg:        #0b0a12;
  --pty-bg-raised: #16131f;
  --pty-bg-card:   #1d1829;
  --pty-line:      #322a45;
  --pty-text:      #f3effa;
  --pty-text-dim:  #b3a9c9;
  --pty-text-faint:#7c7092;

  --pty-accent:      #ff3d7f;  /* hot pink — primary CTA */
  --pty-accent-dim:  #b32a5a;
  --pty-accent-2:    #ffb020;  /* amber — secondary energy, spicy/price */
  --pty-ok:          #2fd680;
  --pty-danger:      #ff5a5a;

  --pty-spicy:  #ff7a1a;
  --pty-age:    #ff3d3d;

  /* ── shape ── */
  --pty-radius-sm: 10px;
  --pty-radius:    16px;
  --pty-radius-lg: 24px;

  /* ── spacing (8px scale) ── */
  --pty-sp-1: 4px;
  --pty-sp-2: 8px;
  --pty-sp-3: 16px;
  --pty-sp-4: 24px;
  --pty-sp-5: 32px;
  --pty-sp-6: 48px;

  /* ── type — readable arm's-length, one hand, dim room ── */
  --pty-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --pty-size-sm:   15px;
  --pty-size-body: 18px;
  --pty-size-lg:   24px;
  --pty-size-xl:   34px;
  --pty-size-xxl:  48px;

  /* ── touch ── */
  --pty-tap: 48px;

  /* ── motion ── */
  --pty-ease: cubic-bezier(.2,.8,.2,1);
  --pty-fast: 120ms;
  --pty-med:  220ms;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--pty-bg);
  color: var(--pty-text);
  font-family: var(--pty-font);
  font-size: var(--pty-size-body);
  line-height: 1.4;
  -webkit-tap-highlight-color: transparent;
}

body {
  min-height: 100vh;
  min-height: 100dvh;
}

h1, h2, h3 { margin: 0 0 var(--pty-sp-2); line-height: 1.15; font-weight: 800; }
h1 { font-size: var(--pty-size-xxl); }
h2 { font-size: var(--pty-size-xl); }
h3 { font-size: var(--pty-size-lg); }
p  { margin: 0 0 var(--pty-sp-3); color: var(--pty-text-dim); }

a { color: var(--pty-accent-2); }

.pty-muted   { color: var(--pty-text-faint); font-size: var(--pty-size-sm); }
.pty-center  { text-align: center; }

/* ── buttons ── */
.pty-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--pty-sp-2);
  min-height: var(--pty-tap);
  padding: 0 var(--pty-sp-4);
  border: none;
  border-radius: var(--pty-radius);
  background: var(--pty-bg-card);
  color: var(--pty-text);
  font-family: inherit;
  font-size: var(--pty-size-body);
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  transition: transform var(--pty-fast) var(--pty-ease), opacity var(--pty-fast) var(--pty-ease);
  user-select: none;
  -webkit-user-select: none;
}
.pty-btn:active { transform: scale(0.96); }

.pty-btn-primary {
  background: linear-gradient(135deg, var(--pty-accent), var(--pty-accent-dim));
  color: #fff;
  box-shadow: 0 6px 20px -6px rgba(255, 61, 127, 0.6);
}

.pty-btn-secondary {
  background: transparent;
  border: 2px solid var(--pty-line);
  color: var(--pty-text);
}

.pty-btn-full { width: 100%; }

.pty-btn:disabled,
.pty-btn[aria-disabled="true"] {
  opacity: 0.45;
  cursor: not-allowed;
  box-shadow: none;
  transform: none;
}

/* ── card ── */
.pty-card {
  background: var(--pty-bg-card);
  border: 1px solid var(--pty-line);
  border-radius: var(--pty-radius);
  padding: var(--pty-sp-4);
}

.pty-card-raised {
  background: var(--pty-bg-raised);
}

/* ── SKU card (store) ── */
.pty-sku {
  display: flex;
  align-items: center;
  gap: var(--pty-sp-3);
  background: var(--pty-bg-card);
  border: 1px solid var(--pty-line);
  border-radius: var(--pty-radius);
  padding: var(--pty-sp-3);
  min-height: var(--pty-tap);
}

.pty-sku-body { flex: 1; min-width: 0; }
.pty-sku-name { font-weight: 800; font-size: var(--pty-size-lg); margin-bottom: 2px; }
.pty-sku-desc { color: var(--pty-text-dim); font-size: var(--pty-size-sm); }

.pty-sku-price {
  flex-shrink: 0;
  min-width: var(--pty-tap);
  min-height: var(--pty-tap);
  padding: 0 var(--pty-sp-3);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--pty-radius-sm);
  background: linear-gradient(135deg, var(--pty-accent), var(--pty-accent-dim));
  color: #fff;
  font-weight: 800;
  text-decoration: none;
  white-space: nowrap;
}

.pty-sku.pty-sku-disabled {
  opacity: 0.55;
}
.pty-sku.pty-sku-disabled .pty-sku-price {
  background: var(--pty-bg-raised);
  color: var(--pty-text-faint);
  cursor: not-allowed;
}

.pty-sku.pty-sku-owned .pty-sku-price {
  background: var(--pty-ok);
  color: #06331c;
}

.pty-badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 999px;
  margin-left: var(--pty-sp-2);
  vertical-align: middle;
}
.pty-badge-spicy { background: var(--pty-spicy); color: #2b1400; }
.pty-badge-age   { background: var(--pty-age);   color: #2b0000; }

/* ── modal ── */
.pty-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(5, 4, 10, 0.72);
  backdrop-filter: blur(3px);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  z-index: 100;
  padding: var(--pty-sp-3);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--pty-med) var(--pty-ease);
}
.pty-modal-backdrop.pty-open {
  opacity: 1;
  pointer-events: auto;
}
@media (min-width: 640px) {
  .pty-modal-backdrop { align-items: center; }
}

.pty-modal {
  background: var(--pty-bg-raised);
  border: 1px solid var(--pty-line);
  border-radius: var(--pty-radius-lg);
  padding: var(--pty-sp-5);
  max-width: 480px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  transform: translateY(24px);
  transition: transform var(--pty-med) var(--pty-ease);
}
.pty-modal-backdrop.pty-open .pty-modal {
  transform: translateY(0);
}

/* ── toast ── */
.pty-toast {
  position: fixed;
  left: 50%;
  bottom: var(--pty-sp-5);
  transform: translate(-50%, 16px);
  background: var(--pty-bg-raised);
  border: 1px solid var(--pty-line);
  color: var(--pty-text);
  padding: var(--pty-sp-3) var(--pty-sp-4);
  border-radius: var(--pty-radius);
  font-weight: 600;
  box-shadow: 0 12px 32px -8px rgba(0,0,0,0.6);
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: transform var(--pty-med) var(--pty-ease), opacity var(--pty-med) var(--pty-ease);
  max-width: calc(100vw - 32px);
  text-align: center;
}
.pty-toast.pty-open {
  opacity: 1;
  transform: translate(-50%, 0);
}
.pty-toast-danger { border-color: var(--pty-danger); }
.pty-toast-ok      { border-color: var(--pty-ok); }

/* ── layout helpers ── */
.pty-page {
  max-width: 640px;
  margin: 0 auto;
  padding: var(--pty-sp-5) var(--pty-sp-3) var(--pty-sp-6);
}

.pty-stack { display: flex; flex-direction: column; gap: var(--pty-sp-3); }
.pty-row   { display: flex; align-items: center; gap: var(--pty-sp-2); }

.pty-footer {
  margin-top: var(--pty-sp-5);
  padding-top: var(--pty-sp-4);
  border-top: 1px solid var(--pty-line);
  color: var(--pty-text-faint);
  font-size: var(--pty-size-sm);
  text-align: center;
}

/* ── shelf ── */
.pty-shelf-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: var(--pty-sp-3);
}

.pty-shelf-card {
  display: block;
  background: var(--pty-bg-card);
  border: 1px solid var(--pty-line);
  border-radius: var(--pty-radius);
  padding: var(--pty-sp-3);
  text-decoration: none;
  color: var(--pty-text);
  min-height: var(--pty-tap);
  transition: transform var(--pty-fast) var(--pty-ease);
}
.pty-shelf-card:active { transform: scale(0.97); }
.pty-shelf-card .pty-shelf-name    { font-weight: 800; font-size: var(--pty-size-lg); }
.pty-shelf-card .pty-shelf-tagline { color: var(--pty-text-dim); font-size: var(--pty-size-sm); margin-top: 2px; }