/* styles.css — QR Bag Tag design system. Apple-minimal: light, spacious, sober. */

:root {
  --bg: #ffffff;
  --surface: #ffffff;
  --surface-2: #f5f5f7;
  --ink: #1d1d1f;
  --ink-soft: #6e6e73;
  --ink-faint: #a1a1a6;
  --line: #e6e6eb;
  --line-strong: #d2d2d7;

  /* accent — base overridden by Tweaks at runtime; press/soft derived */
  --accent: oklch(0.58 0.15 255);
  --accent-press: color-mix(in oklab, var(--accent), black 16%);
  --accent-soft: color-mix(in oklab, var(--accent), white 90%);
  --accent-ink: #ffffff;

  --r-sm: 10px;
  --r-md: 14px;
  --r-lg: 22px;
  --r-xl: 30px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.04), 0 1px 1px rgba(0,0,0,.03);
  --shadow-md: 0 4px 16px rgba(20,22,30,.06), 0 1px 3px rgba(20,22,30,.05);
  --shadow-lg: 0 24px 60px rgba(20,22,30,.12), 0 8px 24px rgba(20,22,30,.07);
  --maxw: 1120px;
  --font: -apple-system, BlinkMacSystemFont, "Helvetica Neue", Helvetica, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  line-height: 1.5;
}
#root { min-height: 100vh; display: flex; flex-direction: column; }

button { font-family: inherit; }
a { color: inherit; text-decoration: none; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
@media (max-width: 640px) { .container { padding: 0 18px; } }

/* ---------- Header ---------- */
.app-header {
  position: sticky; top: 0; z-index: 40;
  background: rgba(255,255,255,.8);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--line);
}
.app-header__inner {
  height: 56px; display: flex; align-items: center; gap: 20px;
}
.brand { display: flex; align-items: center; gap: 11px; cursor: pointer; }
.brand__logo {
  width: 32px; height: 32px; border-radius: 9px;
}
.brand__name { font-weight: 600; font-size: 17px; letter-spacing: -.01em; }
.brand__name b { color: var(--accent); }
.header-spacer { flex: 1; }
.header-nav { display: flex; align-items: center; gap: 4px; }
@media (max-width: 600px) { .header-nav--desktop { display: none; } }
.nav-link {
  font-size: 13.5px; color: var(--ink-soft); padding: 7px 12px; border-radius: 999px;
  cursor: pointer; transition: background .15s, color .15s; border: none; background: none;
}
.nav-link:hover { color: var(--ink); background: var(--surface-2); }
.nav-link.is-active { color: var(--ink); background: var(--surface-2); }
.lang-toggle {
  display: inline-flex; background: var(--surface-2); border-radius: 999px; padding: 2px;
  border: 1px solid var(--line);
}
.lang-toggle button {
  border: none; background: none; cursor: pointer; font-size: 12px; font-weight: 600;
  padding: 4px 9px; border-radius: 999px; color: var(--ink-soft); letter-spacing: .02em;
}
.lang-toggle button.is-active { background: var(--surface); color: var(--ink); box-shadow: var(--shadow-sm); }
.cart-btn {
  position: relative; border: 1px solid var(--line-strong); background: var(--surface);
  width: 36px; height: 36px; border-radius: 999px; cursor: pointer; display: grid; place-items: center;
  transition: border-color .15s, transform .1s;
}
.cart-btn:hover { border-color: var(--ink-faint); }
.cart-btn:active { transform: scale(.95); }
.cart-badge {
  position: absolute; top: -5px; right: -5px; min-width: 18px; height: 18px; padding: 0 4px;
  background: var(--accent); color: var(--accent-ink); border-radius: 999px; font-size: 11px;
  font-weight: 700; display: grid; place-items: center; border: 2px solid var(--bg);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-size: 15px; font-weight: 500; letter-spacing: -.01em; cursor: pointer;
  border-radius: 999px; padding: 12px 22px; border: 1px solid transparent;
  transition: transform .12s ease, background .15s, box-shadow .15s, border-color .15s;
  white-space: nowrap;
}
.btn:active { transform: scale(.98); }
.btn--primary { background: var(--accent); color: var(--accent-ink); }
.btn--primary:hover { background: var(--accent-press); }
.btn--lg { padding: 15px 30px; font-size: 16.5px; }
.btn--ghost { background: var(--surface); color: var(--ink); border-color: var(--line-strong); }
.btn--ghost:hover { border-color: var(--ink-faint); background: var(--surface); }
.btn--quiet { background: transparent; color: var(--accent); padding: 10px 14px; }
.btn--quiet:hover { background: var(--accent-soft); }
.btn--block { width: 100%; }
.btn:disabled { opacity: .5; cursor: not-allowed; transform: none; }

/* ---------- Typography helpers ---------- */
.kicker {
  font-size: 12.5px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase;
  color: var(--accent);
}
.display {
  font-weight: 600; letter-spacing: -.025em; line-height: 1.05; color: var(--ink);
  font-size: clamp(34px, 6vw, 60px); text-wrap: balance;
}
.h2 { font-weight: 600; letter-spacing: -.02em; font-size: clamp(26px, 4vw, 40px); line-height: 1.1; text-wrap: balance; }
.lead { font-size: clamp(17px, 2.2vw, 21px); color: var(--ink-soft); line-height: 1.45; text-wrap: pretty; }
.muted { color: var(--ink-soft); }
.faint { color: var(--ink-faint); }

/* ---------- Sections ---------- */
.section { padding: clamp(56px, 9vw, 110px) 0; }
.section--tight { padding: clamp(40px, 6vw, 72px) 0; }
.section-head { max-width: 640px; }
.section-head .h2 { margin: 10px 0 0; }
.section-head .lead { margin: 14px 0 0; }

/* ---------- Cards ---------- */
.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-lg);
  box-shadow: var(--shadow-sm);
}

/* image-slot base look */
image-slot {
  --is-bg: var(--surface-2);
  background: var(--surface-2);
}

/* ---------- Fields ---------- */
.field { display: flex; flex-direction: column; gap: 7px; }
.field__label { font-size: 13.5px; font-weight: 500; color: var(--ink); }
.field__label .opt { color: var(--ink-faint); font-weight: 400; }
.input, .select, .textarea {
  width: 100%; font: inherit; font-size: 15px; color: var(--ink);
  background: var(--surface); border: 1px solid var(--line-strong); border-radius: var(--r-md);
  padding: 12px 14px; transition: border-color .15s, box-shadow .15s;
}
.input::placeholder, .textarea::placeholder { color: var(--ink-faint); }
.input:focus, .select:focus, .textarea:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}
.textarea { resize: vertical; min-height: 84px; }
.input.has-error, .textarea.has-error { border-color: #e0473e; box-shadow: 0 0 0 4px rgba(224,71,62,.12); }
.field__err { font-size: 12.5px; color: #d23a31; }
.row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 520px) { .row-2 { grid-template-columns: 1fr; } }
.form-divider { height: 1px; background: var(--line, #e8e4dc); margin: 20px 0 16px; }
.social-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 14px; }
@media (max-width: 560px) { .social-grid { grid-template-columns: 1fr; } }

/* segmented control */
.seg { display: flex; gap: 6px; background: var(--surface-2); padding: 5px; border-radius: 14px; }
.seg button {
  flex: 1; border: none; background: none; cursor: pointer; padding: 9px 10px; border-radius: 10px;
  font-size: 13.5px; font-weight: 500; color: var(--ink-soft); transition: background .15s, color .15s;
}
.seg button.is-active { background: var(--surface); color: var(--ink); box-shadow: var(--shadow-sm); }

/* color swatches */
.swatches { display: flex; flex-wrap: wrap; gap: 9px; }
.swatch {
  width: 34px; height: 34px; border-radius: 50%; cursor: pointer; position: relative;
  border: 1px solid rgba(0,0,0,.12); transition: transform .1s;
}
.swatch:hover { transform: scale(1.08); }
.swatch.is-active { box-shadow: 0 0 0 2px var(--bg), 0 0 0 4px var(--accent); }
.swatch.is-active::after {
  content: ""; position: absolute; inset: 0; margin: auto; width: 12px; height: 12px;
}

/* stepper */
.stepper { display: inline-flex; align-items: center; border: 1px solid var(--line-strong); border-radius: 999px; overflow: hidden; }
.stepper button {
  width: 40px; height: 40px; border: none; background: var(--surface); cursor: pointer; font-size: 18px;
  color: var(--ink); display: grid; place-items: center; transition: background .12s;
}
.stepper button:hover { background: var(--surface-2); }
.stepper button:disabled { color: var(--ink-faint); cursor: not-allowed; }
.stepper .val { min-width: 42px; text-align: center; font-weight: 600; font-size: 15px; }

/* checkbox */
.check { display: flex; gap: 11px; align-items: flex-start; cursor: pointer; font-size: 13.5px; color: var(--ink-soft); line-height: 1.45; }
.check input { margin-top: 2px; width: 17px; height: 17px; accent-color: var(--accent); flex-shrink: 0; }

/* pill / badge */
.pill {
  display: inline-flex; align-items: center; gap: 6px; font-size: 12.5px; font-weight: 500;
  color: var(--ink-soft); background: var(--surface-2); padding: 5px 11px; border-radius: 999px;
}
.dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); }

/* color chip (two-tone preview) */
.twotone {
  width: 26px; height: 26px; border-radius: 50%; border: 1px solid rgba(0,0,0,.1);
  background-size: cover; display: inline-block; vertical-align: middle;
}

/* divider */
.hr { height: 1px; background: var(--line); border: none; margin: 0; }

/* fade-in for screen transitions — transform-only so content is always visible
   even if the animation frame never ticks (base state = visible end state) */
@keyframes fadeUp { from { transform: translateY(10px); } to { transform: none; } }
.screen { animation: fadeUp .45s ease; }
@media (prefers-reduced-motion: reduce) { .screen { animation: none; } }

/* footer */
.app-footer { margin-top: auto; border-top: 1px solid var(--line); background: var(--surface); }
.app-footer__inner { padding: 28px 0; display: flex; flex-wrap: wrap; gap: 14px; align-items: center; font-size: 13px; color: var(--ink-soft); }
.app-footer a { color: var(--ink-soft); }
.app-footer a:hover { color: var(--ink); }