:root {
  --bg: #f4efe7;
  --bg-accent: #f7d7c4;
  --bg-accent-2: #d7e8ff;
  --surface: rgba(255, 255, 255, 0.82);
  --surface-strong: #ffffff;
  --surface-alt: #eef2f7;
  --text: #172033;
  --muted: #5e687d;
  --border: rgba(23, 32, 51, 0.14);
  --accent: #275efe;
  --accent-2: #c43d6b;
  --good: #147d57;
  --warn: #b26b00;
  --bad: #c73939;
  --shadow: 0 24px 60px rgba(23, 32, 51, 0.12);
  --radius: 22px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1320;
    --bg-accent: #182a45;
    --bg-accent-2: #2b2346;
    --surface: rgba(18, 24, 38, 0.82);
    --surface-strong: #121826;
    --surface-alt: #1a2334;
    --text: #eaf0ff;
    --muted: #a8b2c6;
    --border: rgba(234, 240, 255, 0.12);
    --accent: #7da2ff;
    --accent-2: #ff789f;
    --shadow: 0 24px 70px rgba(0, 0, 0, 0.35);
  }
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at top left, color-mix(in srgb, var(--bg-accent) 65%, transparent) 0 18%, transparent 38%),
    radial-gradient(circle at top right, color-mix(in srgb, var(--bg-accent-2) 65%, transparent) 0 16%, transparent 34%),
    linear-gradient(180deg, var(--bg) 0%, color-mix(in srgb, var(--bg) 92%, #ffffff 8%) 100%);
  font-family: system-ui, sans-serif;
  line-height: 1.5;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

.app-shell {
  width: min(1200px, calc(100vw - 2rem));
  margin: 0 auto;
  padding: 1rem 0 2rem;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0 1.25rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.brand-mark {
  width: 2.1rem;
  height: 2.1rem;
  display: grid;
  place-items: center;
  border-radius: 0.8rem;
  color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 10px 24px rgba(39, 94, 254, 0.22);
}

.brand-name {
  font-size: 1.05rem;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.nav-link {
  padding: 0.62rem 0.9rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: color-mix(in srgb, var(--surface) 70%, transparent);
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.nav-link:hover,
.nav-link:focus-visible {
  transform: translateY(-1px);
  border-color: color-mix(in srgb, var(--accent) 35%, var(--border));
}

.nav-link[aria-current="page"] {
  color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-color: transparent;
}

.view-shell {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 30px;
  background: var(--surface);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.view-shell::before,
.view-shell::after {
  content: "";
  position: absolute;
  inset: auto;
  border-radius: 999px;
  pointer-events: none;
  opacity: 0.45;
}

.view-shell::before {
  width: 15rem;
  height: 15rem;
  background: radial-gradient(circle, color-mix(in srgb, var(--bg-accent) 75%, transparent), transparent 68%);
  top: -5rem;
  right: -4rem;
}

.view-shell::after {
  width: 11rem;
  height: 11rem;
  background: radial-gradient(circle, color-mix(in srgb, var(--bg-accent-2) 72%, transparent), transparent 70%);
  bottom: -4rem;
  left: -3rem;
}

.view {
  position: relative;
  z-index: 1;
  padding: clamp(1rem, 2vw, 1.5rem);
}

.home-layout {
  display: grid;
  gap: 0.75rem;
  padding: clamp(0.85rem, 3vw, 1.4rem);
  align-items: start;
}

.hero {
  display: grid;
  gap: 1rem;
  max-width: 48rem;
  padding: clamp(1.25rem, 4vw, 2rem);
  border: 1px solid var(--border);
  border-radius: 28px;
  background: linear-gradient(135deg, color-mix(in srgb, var(--surface-strong) 92%, transparent), color-mix(in srgb, var(--surface-alt) 78%, transparent));
}

.eyebrow {
  display: inline-flex;
  width: fit-content;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.75rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface) 80%, transparent);
  color: var(--muted);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-family: system-ui, sans-serif;
  line-height: 1;
  letter-spacing: -0.03em;
  font-size: clamp(2.1rem, 4vw, 3.2rem);
}

.hero-copy {
  margin: 0;
  max-width: 42rem;
  font-size: 1.08rem;
  color: var(--muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 0.2rem;
}

.action-card {
  display: grid;
  gap: 0.35rem;
  min-width: 15rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--border);
  border-radius: 22px;
  background: color-mix(in srgb, var(--surface-strong) 92%, transparent);
  box-shadow: 0 12px 24px rgba(23, 32, 51, 0.04);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.action-card:hover,
.action-card:focus-visible {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--accent) 30%, var(--border));
}

.action-title {
  font-weight: 700;
  font-size: 1rem;
}

.action-desc,
.hero-meta,
.lead,
.field-hint,
.advanced-summary-note,
.advanced-intro,
.helper-note,
.card-copy,
.compat-note,
.warning-block,
.warning-badge {
  color: var(--muted);
}

.action-desc {
  font-size: 0.92rem;
}

.page-layout {
  display: grid;
  gap: 1rem;
  align-items: start;
}

@media (min-width: 960px) {
  .page-layout {
    grid-template-columns: minmax(0, 1fr) 360px;
  }
}

.page-header {
  grid-column: 1 / -1;
  display: grid;
  gap: 0.75rem;
  padding: 0.5rem 0.2rem 0.3rem;
}

.lead,
.compat-note {
  max-width: 64rem;
  font-size: 1rem;
}

.compat-note {
  padding: 0.9rem 1rem;
  border-radius: 18px;
  background: color-mix(in srgb, #fff7d6 70%, var(--surface-strong));
  border: 1px solid color-mix(in srgb, var(--warn) 35%, var(--border));
  color: color-mix(in srgb, var(--warn) 80%, var(--text));
}

.form-panel {
  display: grid;
  gap: 1rem;
}

.primary-card,
.photo-card,
.dynamic-card,
details,
.qr-panel {
  padding: 1.2rem;
  border: 1px solid var(--border);
  border-radius: 22px;
  background: color-mix(in srgb, var(--surface-strong) 92%, transparent);
  box-shadow: 0 12px 24px rgba(23, 32, 51, 0.04);
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}

.section-title {
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

h2.section-title {
  margin: 0;
}

.form-group,
.nested-group,
.simple-grid,
.mode-row,
.bitset-grid,
.address-grid {
  display: grid;
  gap: 0.9rem;
}

.form-group,
.nested-group,
.mode-row,
.bitset-grid {
  grid-template-columns: 1fr;
}

@media (min-width: 560px) {
  .form-group.split,
  .nested-group.split,
  .simple-grid,
  .mode-row {
    grid-template-columns: 1fr 1fr;
  }

  .address-grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }

  .address-fullwidth {
    grid-column: span 4;
  }
}

label {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.88rem;
  font-weight: 600;
}

.vendor-label {
  color: var(--accent-2);
}

input,
textarea,
select {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: color-mix(in srgb, var(--surface-strong) 96%, transparent);
  color: var(--text);
  padding: 0.72rem 0.85rem;
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

textarea {
  resize: vertical;
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: color-mix(in srgb, var(--accent) 45%, var(--border));
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 18%, transparent);
}

.field-hint {
  font-size: 0.78rem;
  font-weight: 500;
  margin-top: 0.15rem;
}

.btn {
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 700;
  padding: 0.6rem 0.9rem;
  transition: transform 0.18s ease, background 0.18s ease, border-color 0.18s ease;
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-1px);
}

.btn-add {
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 10%, transparent);
  border-color: color-mix(in srgb, var(--accent) 28%, var(--border));
}

.btn-del {
  color: #fff;
  background: linear-gradient(135deg, color-mix(in srgb, var(--bad) 88%, #000), color-mix(in srgb, var(--accent-2) 86%, #000));
}

.row-controls {
  display: grid;
  grid-template-columns: 140px minmax(0, 1fr) auto;
  gap: 0.6rem;
  align-items: center;
}

.dynamic-row {
  display: grid;
  gap: 0.9rem;
  padding: 0.95rem;
  border-radius: 18px;
  border: 1px dashed var(--border);
  background: color-mix(in srgb, var(--surface-strong) 80%, transparent);
}

.photo-toggle-container {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 0.8rem;
}

.preset-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.preset-chip {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.55rem 0.85rem;
  background: color-mix(in srgb, var(--surface-alt) 82%, var(--surface-strong));
  color: var(--text);
  font-weight: 700;
  transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

.preset-chip:hover,
.preset-chip:focus-visible {
  transform: translateY(-1px);
  border-color: color-mix(in srgb, var(--accent) 34%, var(--border));
}

.preset-chip:active {
  transform: translateY(0);
}

.photo-toggle-container label,
.checkbox-card,
.advanced-summary {
  cursor: pointer;
}

.warning-badge,
.warning-block {
  display: none;
  padding: 0.8rem 0.9rem;
  border-radius: 16px;
  font-size: 0.84rem;
  line-height: 1.45;
  background: color-mix(in srgb, #fff7d6 78%, var(--surface-strong));
  border: 1px solid color-mix(in srgb, var(--warn) 30%, var(--border));
}

.warning-block.active,
.warning-badge.active {
  display: block;
}

.checkbox-card {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  padding: 0.9rem 1rem;
  border-radius: 18px;
  border: 1px solid var(--border);
  background: var(--surface-alt);
  font-weight: 600;
}

.checkbox-card input[type="checkbox"] {
  width: auto;
  accent-color: var(--accent);
  transform: translateY(0.1rem) scale(1.05);
}

.checkbox-copy {
  display: flex;
  flex-direction: column;
  gap: 0.12rem;
}

.checkbox-title {
  color: var(--text);
  font-size: 0.92rem;
}

.checkbox-description {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--muted);
}

details.advanced-card {
  padding: 0;
  overflow: hidden;
}

.advanced-summary {
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.2rem;
  font-weight: 700;
}

.advanced-summary::-webkit-details-marker {
  display: none;
}

.advanced-summary-copy {
  display: flex;
  flex-direction: column;
  gap: 0.18rem;
}

.advanced-chevron {
  transition: transform 0.2s ease;
  font-size: 0.9rem;
}

details[open] .advanced-chevron {
  transform: rotate(180deg);
}

.advanced-content {
  display: grid;
  gap: 1rem;
  padding: 1.2rem;
  border-top: 1px solid var(--border);
}

.advanced-intro {
  font-size: 0.92rem;
  line-height: 1.55;
}

.advanced-intro ul {
  margin: 0.75rem 0 0;
  padding-left: 1.15rem;
}

.advanced-intro li + li {
  margin-top: 0.35rem;
}

.helper-note {
  margin: -0.25rem 0 0;
  font-size: 0.82rem;
  text-align: center;
}

.qr-panel {
  position: sticky;
  top: 1rem;
  display: grid;
  gap: 1rem;
  align-self: start;
}

.qr-wrapper {
  display: grid;
  place-items: center;
  padding: 1rem;
  border-radius: 20px;
  background: #fff;
  overflow: hidden;
}

.preview-box {
  max-height: 18rem;
  overflow: auto;
  padding: 0.9rem 1rem;
  border-radius: 18px;
  border: 1px solid var(--border);
  background: var(--surface-alt);
  font-family: ui-monospace, monospace;
  font-size: 0.76rem;
  white-space: pre-wrap;
  word-break: break-all;
}

.full-span {
  grid-column: span 2;
}

.is-hidden {
  display: none;
}

@media (max-width: 959px) {
  .qr-panel {
    position: static;
  }
}

@media (prefers-color-scheme: dark) {
  .qr-wrapper {
    background: #fff;
  }
}