/* STRIDE storefront — design system + components */

:root {
  --paper: #f5f1e8;
  --paper-deep: #ece6da;
  --card: #fffdf8;
  --ink: #14161a;
  --ink-soft: #3a3f45;
  --muted: #6d7278;
  --line: rgba(20, 22, 26, 0.12);
  --line-strong: rgba(20, 22, 26, 0.28);
  --accent: #e2552c;
  --accent-dark: #b83f1c;
  --lime: #d8f24a;
  --ok: #2f6b46;
  --radius: 18px;
  --radius-sm: 10px;
  --shadow-sm: 0 1px 2px rgba(20, 22, 26, 0.06), 0 6px 18px rgba(20, 22, 26, 0.05);
  --shadow-lg: 0 30px 80px rgba(20, 22, 26, 0.18);
  --sans: "Inter", "Helvetica Neue", Helvetica, Arial, system-ui, sans-serif;
  --serif: "Iowan Old Style", "Palatino Linotype", Georgia, "Times New Roman", serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace;
  --header-h: 68px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; }

.container {
  width: min(1200px, calc(100% - 48px));
  margin-inline: auto;
}

@media (max-width: 640px) {
  .container { width: calc(100% - 32px); }
}

h1, h2, h3, h4 {
  margin: 0;
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 0.95;
  text-transform: uppercase;
}

.eyebrow {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}

.serif { font-family: var(--serif); font-style: italic; font-weight: 400; text-transform: none; letter-spacing: -0.01em; }

.muted { color: var(--muted); }
.tiny { font-size: 12px; }

/* ---------- Announcement + header ---------- */

.announce {
  background: var(--ink);
  color: #f7f3ea;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-align: center;
  padding: 9px 16px;
}

.announce .link-btn { color: var(--lime); text-transform: uppercase; letter-spacing: 0.08em; font-size: 12px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 28px;
  height: var(--header-h);
}

.logo {
  font-weight: 900;
  font-size: 24px;
  letter-spacing: -0.05em;
  text-transform: uppercase;
  display: inline-flex;
  align-items: baseline;
}

.logo-dot { color: var(--accent); }

.nav { display: flex; gap: 22px; margin-left: 8px; flex: 1; }
.nav a {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-soft);
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  transition: color .15s, border-color .15s;
}
.nav a:hover, .nav a[aria-current="page"] { color: var(--ink); border-color: var(--accent); }

.header-actions { display: flex; align-items: center; gap: 14px; }

.link-btn {
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-soft);
  border-bottom: 1px solid transparent;
}
.link-btn:hover { color: var(--ink); border-color: currentColor; }

.cart-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--ink);
  color: #fff;
  border: 0;
  border-radius: 999px;
  padding: 9px 16px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: transform .15s ease, background .15s;
}
.cart-btn:hover { background: var(--accent); transform: translateY(-1px); }

.cart-count {
  display: inline-grid;
  place-items: center;
  min-width: 20px;
  height: 20px;
  border-radius: 999px;
  background: var(--lime);
  color: var(--ink);
  font-size: 11px;
  font-weight: 800;
  padding: 0 5px;
}

@media (max-width: 860px) {
  .nav { display: none; }
  .header-inner { justify-content: space-between; }
}

/* ---------- Buttons + forms ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: #fff;
  border-radius: 999px;
  padding: 14px 26px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: transform .15s ease, background .15s, color .15s, box-shadow .15s;
}
.btn:hover { transform: translateY(-1px); box-shadow: var(--shadow-sm); }
.btn--accent { background: var(--accent); border-color: var(--accent); }
.btn--accent:hover { background: var(--accent-dark); border-color: var(--accent-dark); }
.btn--ghost { background: transparent; color: var(--ink); }
.btn--ghost:hover { background: rgba(20, 22, 26, 0.06); }
.btn--block { width: 100%; }
.btn[disabled] { opacity: .5; cursor: not-allowed; transform: none; box-shadow: none; }

.field { display: grid; gap: 6px; }
.field > label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.input, select.input, textarea.input {
  width: 100%;
  border: 1px solid var(--line-strong);
  background: var(--card);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-size: 15px;
  color: var(--ink);
  transition: border-color .15s, box-shadow .15s;
}
.input:focus { outline: none; border-color: var(--ink); box-shadow: 0 0 0 3px rgba(226, 85, 44, 0.18); }
.input[aria-invalid="true"] { border-color: var(--accent); }
.field-error { color: var(--accent-dark); font-size: 12px; min-height: 14px; }

/* ---------- Hero ---------- */

.hero { padding: 56px 0 40px; border-bottom: 1px solid var(--line); }
.hero-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 48px; align-items: center; }
.hero h1 { font-size: clamp(52px, 8.2vw, 112px); letter-spacing: -0.055em; }
.hero h1 .serif { display: block; font-size: 0.62em; letter-spacing: -0.02em; color: var(--accent); }
.hero-copy { max-width: 460px; margin: 26px 0 30px; font-size: 17px; color: var(--ink-soft); }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-stats { display: flex; gap: 34px; margin-top: 42px; }
.hero-stats div { display: grid; gap: 2px; }
.hero-stats strong { font-size: 22px; letter-spacing: -0.02em; }
.hero-stats span { font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }

.hero-art {
  position: relative;
  background: linear-gradient(160deg, #efe7d8, #e3dac7 60%, #d9cfba);
  border-radius: 28px;
  padding: 18px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.hero-art img { width: 100%; border-radius: 18px; }
.hero-art-tag {
  position: absolute;
  left: 30px;
  bottom: 30px;
  background: rgba(255, 253, 248, 0.92);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 16px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  backdrop-filter: blur(6px);
}
.hero-art-tag em { font-family: var(--serif); font-weight: 400; text-transform: none; letter-spacing: 0; color: var(--accent); }

@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 32px; }
  .hero { padding-top: 32px; }
  .hero-stats { margin-top: 28px; gap: 24px; }
}

/* ---------- Section headings ---------- */

.section { padding: 64px 0; }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 30px; }
.section-head h2 { font-size: clamp(30px, 4vw, 46px); }
.section-head p { margin: 8px 0 0; color: var(--muted); max-width: 520px; }

/* ---------- Filters ---------- */

.filters { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-bottom: 26px; }
.pill {
  border: 1px solid var(--line-strong);
  background: transparent;
  border-radius: 999px;
  padding: 9px 18px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background .15s, color .15s, border-color .15s;
}
.pill:hover { border-color: var(--ink); }
.pill[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); color: #fff; }
.filters-right { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.filters select { border: 1px solid var(--line-strong); border-radius: 999px; padding: 9px 14px; background: transparent; font-size: 12px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; }

/* ---------- Product grid ---------- */

.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
@media (max-width: 980px) { .grid { grid-template-columns: repeat(2, 1fr); gap: 18px; } }
@media (max-width: 560px) { .grid { grid-template-columns: 1fr; } }

.card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-sm); border-color: var(--line-strong); }

.card-media {
  position: relative;
  aspect-ratio: 4 / 3;
  display: grid;
  place-items: center;
  padding: 14px;
  overflow: hidden;
}
.card-media img { width: 100%; transition: transform .35s ease; }
.card:hover .card-media img { transform: scale(1.04) rotate(-1deg); }

.badge {
  position: absolute;
  top: 14px;
  left: 14px;
  background: var(--ink);
  color: #fff;
  border-radius: 999px;
  padding: 5px 11px;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.badge--sale { background: var(--accent); }

.card-body { padding: 16px 18px 20px; display: grid; gap: 6px; flex: 1; }
.card-title { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; }
.card-title h3 { font-size: 18px; letter-spacing: -0.02em; text-transform: none; font-weight: 700; }
.card-price { font-weight: 700; font-variant-numeric: tabular-nums; }
.card-price s { color: var(--muted); font-weight: 400; font-size: 13px; margin-right: 6px; }
.card-tagline { color: var(--muted); font-size: 14px; }
.card-meta { display: flex; align-items: center; justify-content: space-between; margin-top: 6px; font-size: 12px; color: var(--muted); }
.swatches { display: inline-flex; gap: 5px; }
.swatch { width: 12px; height: 12px; border-radius: 999px; border: 1px solid rgba(0, 0, 0, 0.12); }
.rating { font-size: 12px; color: var(--ink-soft); letter-spacing: 0.02em; }
.rating span { color: var(--muted); }

.card--soldout .card-media { opacity: .55; }

/* ---------- Editorial band ---------- */

.band { background: var(--ink); color: #f7f3ea; padding: 64px 0; }
.band .eyebrow { color: rgba(247, 243, 234, 0.6); }
.band h2 { font-size: clamp(30px, 4vw, 48px); margin: 14px 0 18px; }
.band p { color: rgba(247, 243, 234, 0.72); max-width: 560px; }
.band-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 48px; align-items: center; }
.feature-list { display: grid; gap: 18px; }
.feature { display: grid; grid-template-columns: 34px 1fr; gap: 14px; padding-bottom: 18px; border-bottom: 1px solid rgba(247, 243, 234, 0.16); }
.feature:last-child { border-bottom: 0; padding-bottom: 0; }
.feature b { display: block; font-size: 15px; letter-spacing: 0.01em; }
.feature span { color: rgba(247, 243, 234, 0.66); font-size: 14px; }
.feature-icon { width: 34px; height: 34px; border-radius: 999px; background: rgba(247, 243, 234, 0.1); display: grid; place-items: center; font-size: 15px; }
@media (max-width: 860px) { .band-grid { grid-template-columns: 1fr; gap: 30px; } }

/* ---------- Footer ---------- */

.site-footer { padding: 56px 0 40px; border-top: 1px solid var(--line); margin-top: 20px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 32px; }
.footer-grid h4 { font-size: 11px; letter-spacing: 0.16em; color: var(--muted); margin-bottom: 12px; }
.footer-grid ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; font-size: 14px; }
.footer-grid a:hover { color: var(--accent); }
.footer-note { margin-top: 40px; padding-top: 20px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: 12px; color: var(--muted); }
@media (max-width: 860px) { .footer-grid { grid-template-columns: 1fr 1fr; } }

/* ---------- Cart drawer ---------- */

.overlay {
  position: fixed;
  inset: 0;
  background: rgba(14, 15, 17, 0.42);
  opacity: 0;
  pointer-events: none;
  transition: opacity .25s ease;
  z-index: 60;
}
.overlay[data-open="true"] { opacity: 1; pointer-events: auto; }

.drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(420px, 100%);
  background: var(--paper);
  z-index: 70;
  transform: translateX(102%);
  transition: transform .3s cubic-bezier(.32, .72, 0, 1);
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
}
.drawer[data-open="true"] { transform: translateX(0); }
.drawer-head { display: flex; align-items: center; justify-content: space-between; padding: 22px 24px; border-bottom: 1px solid var(--line); }
.drawer-head h2 { font-size: 20px; }
.icon-btn { background: none; border: 0; cursor: pointer; width: 34px; height: 34px; border-radius: 999px; display: grid; place-items: center; font-size: 18px; }
.icon-btn:hover { background: rgba(20, 22, 26, 0.08); }

.cart-lines { flex: 1; overflow-y: auto; padding: 8px 24px; }
.cart-line { display: grid; grid-template-columns: 84px 1fr; gap: 14px; padding: 16px 0; border-bottom: 1px solid var(--line); }
.cart-line img { width: 84px; border-radius: 12px; background: var(--paper-deep); }
.cart-line-top { display: flex; justify-content: space-between; gap: 10px; }
.cart-line h3 { font-size: 15px; font-weight: 700; text-transform: none; letter-spacing: -0.01em; }
.cart-line .meta { font-size: 12px; color: var(--muted); }
.cart-line-bottom { display: flex; align-items: center; justify-content: space-between; margin-top: 8px; }
.qty { display: inline-flex; align-items: center; border: 1px solid var(--line-strong); border-radius: 999px; overflow: hidden; }
.qty button { width: 28px; height: 28px; border: 0; background: none; cursor: pointer; font-size: 15px; line-height: 1; }
.qty button:hover { background: rgba(20, 22, 26, 0.06); }
.qty span { min-width: 24px; text-align: center; font-size: 13px; font-variant-numeric: tabular-nums; }
.remove-btn { background: none; border: 0; color: var(--muted); font-size: 12px; text-decoration: underline; cursor: pointer; }
.remove-btn:hover { color: var(--accent); }

.cart-foot { padding: 20px 24px 26px; border-top: 1px solid var(--line); background: var(--paper); display: grid; gap: 12px; }
.cart-total { display: flex; justify-content: space-between; align-items: baseline; font-size: 18px; font-weight: 700; }
.cart-total span:last-child { font-variant-numeric: tabular-nums; }
.cart-empty { text-align: center; padding: 60px 24px; color: var(--muted); display: grid; gap: 16px; justify-items: center; }

/* ---------- Chat widget ---------- */

.chat-fab {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 80;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--ink);
  color: #fff;
  border: 0;
  border-radius: 999px;
  padding: 13px 20px 13px 15px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  box-shadow: 0 14px 34px rgba(20, 22, 26, 0.28);
  transition: transform .18s ease, background .18s;
}
.chat-fab:hover { transform: translateY(-2px); background: var(--accent); }
body[data-cart-open="true"] .chat-fab { display: none; }
.chat-fab-dot { width: 9px; height: 9px; border-radius: 999px; background: var(--lime); box-shadow: 0 0 0 4px rgba(216, 242, 74, 0.22); }

.chat-panel {
  position: fixed;
  right: 22px;
  bottom: 22px;
  width: min(400px, calc(100vw - 24px));
  height: min(620px, calc(100vh - 44px));
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: var(--shadow-lg);
  z-index: 90;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transform: translateY(14px) scale(.98);
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s ease, transform .2s ease;
}
.chat-panel[data-open="true"] { opacity: 1; transform: none; pointer-events: auto; }

.chat-head { display: flex; align-items: center; gap: 12px; padding: 14px 16px; background: var(--ink); color: #fff; }
.chat-avatar { width: 36px; height: 36px; border-radius: 999px; background: var(--lime); color: var(--ink); display: grid; place-items: center; font-weight: 900; font-size: 16px; }
.chat-head-info { flex: 1; display: grid; }
.chat-head-info b { font-size: 14px; letter-spacing: 0.02em; }
.chat-head-info span { font-size: 11px; color: rgba(255, 255, 255, 0.66); letter-spacing: 0.04em; }
.chat-head .icon-btn { color: #fff; }
.chat-head .icon-btn:hover { background: rgba(255, 255, 255, 0.14); }

.chat-body { flex: 1; overflow-y: auto; padding: 16px; display: flex; flex-direction: column; gap: 12px; background: var(--paper); }
.msg { max-width: 86%; padding: 11px 14px; border-radius: 16px; font-size: 14px; line-height: 1.5; white-space: pre-wrap; word-break: break-word; }
.msg--bot { background: var(--card); border: 1px solid var(--line); border-bottom-left-radius: 6px; align-self: flex-start; }
.msg--user { background: var(--ink); color: #fff; border-bottom-right-radius: 6px; align-self: flex-end; }
.msg a { color: var(--accent-dark); text-decoration: underline; font-weight: 600; }
.msg--user a { color: var(--lime); }
.msg strong { font-weight: 700; }
.msg-time { font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); align-self: flex-start; margin-top: -6px; }

.msg-cards { display: grid; gap: 8px; width: 100%; }
.msg-card { display: grid; grid-template-columns: 64px 1fr auto; gap: 10px; align-items: center; background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 8px; transition: border-color .15s, transform .15s; }
.msg-card:hover { border-color: var(--line-strong); transform: translateY(-1px); }
.msg-card img { width: 64px; border-radius: 8px; background: var(--paper-deep); }
.msg-card b { display: block; font-size: 13px; }
.msg-card span { font-size: 11px; color: var(--muted); }
.msg-card em { font-style: normal; font-weight: 700; font-size: 13px; }

.typing { display: inline-flex; gap: 4px; align-items: center; }
.typing i { width: 6px; height: 6px; border-radius: 999px; background: var(--muted); animation: blink 1.1s infinite ease-in-out; }
.typing i:nth-child(2) { animation-delay: .15s; }
.typing i:nth-child(3) { animation-delay: .3s; }
@keyframes blink { 0%, 80%, 100% { opacity: .25; transform: translateY(0); } 40% { opacity: 1; transform: translateY(-2px); } }

.chat-suggestions { display: flex; flex-wrap: wrap; gap: 6px; padding: 0 16px 10px; background: var(--paper); }
.chat-suggestions button {
  border: 1px solid var(--line-strong);
  background: transparent;
  border-radius: 999px;
  padding: 6px 11px;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  color: var(--ink-soft);
}
.chat-suggestions button:hover { background: var(--ink); color: #fff; border-color: var(--ink); }

.chat-form { display: flex; gap: 8px; padding: 12px; border-top: 1px solid var(--line); background: var(--card); }
.chat-form input { flex: 1; border: 1px solid var(--line-strong); border-radius: 999px; padding: 11px 15px; font-size: 14px; background: var(--paper); }
.chat-form input:focus { outline: none; border-color: var(--ink); }
.chat-form button { width: 42px; height: 42px; border-radius: 999px; border: 0; background: var(--accent); color: #fff; font-size: 16px; cursor: pointer; display: grid; place-items: center; }
.chat-form button[disabled] { opacity: .5; cursor: wait; }

.chat-foot-note { font-size: 10px; color: var(--muted); text-align: center; padding: 0 12px 10px; background: var(--card); }

@media (max-width: 520px) {
  .chat-panel { right: 12px; bottom: 12px; height: calc(100vh - 24px); }
  .chat-fab { right: 12px; bottom: 12px; }
}

/* ---------- Product page ---------- */

.product-page { padding: 34px 0 20px; }
.breadcrumb { font-size: 12px; color: var(--muted); display: flex; gap: 8px; margin-bottom: 22px; }
.breadcrumb a:hover { color: var(--ink); }
.product-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 48px; align-items: start; }
.product-media { background: linear-gradient(160deg, #efe7d8, #e1d7c3); border-radius: 26px; padding: 26px; position: sticky; top: calc(var(--header-h) + 20px); }
.product-media img { width: 100%; }
.product-thumbs { display: flex; gap: 10px; margin-top: 14px; }
.product-thumbs button { border: 1px solid var(--line-strong); background: var(--card); border-radius: 12px; padding: 4px; width: 64px; cursor: pointer; }
.product-thumbs button[aria-pressed="true"] { border-color: var(--ink); }
.product-info h1 { font-size: clamp(34px, 4.6vw, 54px); text-transform: none; letter-spacing: -0.04em; }
.product-tagline { font-family: var(--serif); font-style: italic; font-size: 20px; color: var(--ink-soft); margin: 10px 0 18px; }
.price-row { display: flex; align-items: baseline; gap: 12px; margin-bottom: 6px; }
.price { font-size: 26px; font-weight: 700; font-variant-numeric: tabular-nums; }
.price s { font-size: 16px; color: var(--muted); font-weight: 400; }
.save-pill { background: var(--lime); color: var(--ink); font-size: 11px; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase; border-radius: 999px; padding: 4px 9px; }
.product-desc { color: var(--ink-soft); margin: 16px 0 24px; }
.option-label { display: flex; justify-content: space-between; align-items: baseline; font-size: 11px; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); margin: 22px 0 10px; }
.option-label button { background: none; border: 0; border-bottom: 1px solid currentColor; padding: 0; font: inherit; cursor: pointer; color: var(--muted); }
.sizes { display: grid; grid-template-columns: repeat(auto-fill, minmax(58px, 1fr)); gap: 8px; }
.size-btn { border: 1px solid var(--line-strong); background: var(--card); border-radius: 10px; padding: 11px 0; font-size: 14px; font-weight: 600; cursor: pointer; position: relative; transition: border-color .15s, background .15s, color .15s; }
.size-btn:hover:not([disabled]) { border-color: var(--ink); }
.size-btn[aria-pressed="true"] { background: var(--ink); color: #fff; border-color: var(--ink); }
.size-btn[disabled] { color: rgba(20, 22, 26, 0.3); background: transparent; cursor: not-allowed; }
.size-btn[disabled]::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to top right, transparent 48%, var(--line-strong) 49%, var(--line-strong) 51%, transparent 52%); }
.product-actions { display: flex; gap: 10px; margin-top: 26px; }
.product-actions .btn { flex: 1; }
.notes { display: grid; gap: 10px; margin-top: 26px; padding-top: 22px; border-top: 1px solid var(--line); font-size: 13px; color: var(--muted); }
.note { display: flex; gap: 10px; align-items: start; }
.note b { color: var(--ink); font-weight: 600; }

.features { margin-top: 28px; display: grid; gap: 8px; }
.features li { font-size: 14px; color: var(--ink-soft); display: flex; gap: 10px; list-style: none; }
.features li::before { content: "—"; color: var(--accent); }
.features { padding: 0; }

@media (max-width: 900px) {
  .product-grid { grid-template-columns: 1fr; gap: 26px; }
  .product-media { position: static; }
}

/* ---------- Checkout ---------- */

.checkout-page { padding: 40px 0 70px; }
.checkout-grid { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 48px; align-items: start; }
.checkout-form { display: grid; gap: 26px; }
.panel { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.panel h2 { font-size: 20px; margin-bottom: 4px; }
.panel-sub { color: var(--muted); font-size: 13px; margin-bottom: 18px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-grid .span-2 { grid-column: span 2; }
@media (max-width: 620px) { .form-grid { grid-template-columns: 1fr; } .form-grid .span-2 { grid-column: auto; } }

.summary { position: sticky; top: calc(var(--header-h) + 20px); display: grid; gap: 14px; }
.summary-lines { display: grid; gap: 14px; max-height: 320px; overflow-y: auto; }
.summary-line { display: grid; grid-template-columns: 64px 1fr auto; gap: 12px; align-items: center; font-size: 14px; }
.summary-line img { width: 64px; border-radius: 10px; background: var(--paper-deep); }
.summary-line b { display: block; font-size: 14px; }
.summary-line span { font-size: 12px; color: var(--muted); }
.totals { display: grid; gap: 8px; font-size: 14px; padding-top: 14px; border-top: 1px solid var(--line); }
.totals div { display: flex; justify-content: space-between; }
.totals .grand { font-size: 18px; font-weight: 700; padding-top: 10px; border-top: 1px solid var(--line); }
.demo-card { background: rgba(216, 242, 74, 0.28); border: 1px dashed var(--line-strong); border-radius: var(--radius-sm); padding: 12px 14px; font-size: 13px; }
.demo-card code { font-family: var(--mono); font-size: 12px; background: rgba(255, 255, 255, 0.7); padding: 2px 5px; border-radius: 4px; }
.alert { border-radius: var(--radius-sm); padding: 12px 14px; font-size: 14px; display: none; }
.alert[data-show="true"] { display: block; }
.alert--error { background: rgba(226, 85, 44, 0.1); border: 1px solid rgba(226, 85, 44, 0.35); color: var(--accent-dark); }

@media (max-width: 900px) {
  .checkout-grid { grid-template-columns: 1fr; }
  .summary { position: static; }
}

/* ---------- Order page ---------- */

.order-page { padding: 46px 0 80px; }
.order-head { display: flex; flex-wrap: wrap; gap: 20px; justify-content: space-between; align-items: end; margin-bottom: 26px; }
.order-head h1 { font-size: clamp(32px, 5vw, 52px); }
.status-chip { display: inline-flex; align-items: center; gap: 8px; border-radius: 999px; padding: 7px 14px; font-size: 11px; font-weight: 800; letter-spacing: 0.12em; text-transform: uppercase; background: var(--ink); color: #fff; }
.status-chip--shipped { background: var(--ok); }
.status-chip--delivered { background: var(--ok); }
.status-chip--return_requested { background: var(--accent); }
.order-grid { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 32px; align-items: start; }
.timeline { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin: 26px 0 6px; }
.step { display: grid; gap: 8px; font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
.step-bar { height: 4px; border-radius: 999px; background: var(--paper-deep); }
.step[data-done="true"] { color: var(--ink); font-weight: 700; }
.step[data-done="true"] .step-bar { background: var(--accent); }
.order-items { display: grid; gap: 14px; margin-top: 18px; }
.order-item { display: grid; grid-template-columns: 72px 1fr auto; gap: 14px; align-items: center; padding-bottom: 14px; border-bottom: 1px solid var(--line); }
.order-item img { width: 72px; border-radius: 10px; background: var(--paper-deep); }
.order-item b { font-size: 14px; }
.order-item span { font-size: 12px; color: var(--muted); }
.order-aside { display: grid; gap: 16px; }
.kv { display: flex; justify-content: space-between; gap: 16px; font-size: 14px; }
.kv span:first-child { color: var(--muted); }
.track-link { display: inline-flex; align-items: center; gap: 6px; font-weight: 700; color: var(--accent-dark); border-bottom: 1px solid currentColor; }
.lookup { max-width: 520px; margin: 0 auto; text-align: center; padding: 30px 0; }
.lookup h1 { font-size: clamp(32px, 5vw, 52px); margin-bottom: 10px; }
.lookup p { color: var(--muted); margin-bottom: 24px; }
.lookup form { display: grid; gap: 12px; text-align: left; }
.lookup .row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 900px) { .order-grid { grid-template-columns: 1fr; } .lookup .row { grid-template-columns: 1fr; } }

/* ---------- Toasts ---------- */

.toast-stack { position: fixed; left: 50%; bottom: 26px; transform: translateX(-50%); z-index: 120; display: grid; gap: 8px; justify-items: center; pointer-events: none; }
.toast { background: var(--ink); color: #fff; padding: 11px 18px; border-radius: 999px; font-size: 13px; font-weight: 600; box-shadow: var(--shadow-lg); animation: toast-in .25s ease; }
.toast--accent { background: var(--accent); }
@keyframes toast-in { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

/* ---------- Utility ---------- */

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}
.hidden { display: none !important; }
.skeleton { background: linear-gradient(90deg, var(--paper-deep) 25%, #f3eee3 37%, var(--paper-deep) 63%); background-size: 400% 100%; animation: shimmer 1.4s ease infinite; border-radius: 8px; }
@keyframes shimmer { 0% { background-position: 100% 0; } 100% { background-position: 0 0; } }