/* DesignYourQR */

:root {
  --bg: #0a0c12;
  --surface: #12151d;
  --surface-2: #1a1e2a;
  --surface-3: #232837;
  --border: #262c3b;
  --border-soft: #1e2330;
  --border-strong: #3a4256;
  --text: #e9edf5;
  --muted: #98a2b5;
  --faint: #838da1;
  --icon: #c3cbda;
  --accent: #6366f1;
  --accent-2: #0ea5e9;
  --accent-ink: #b6bffb;
  --good: #34d399;
  --warn: #fbbf24;
  --bad: #f87171;
  --glow-a: rgba(99, 102, 241, 0.14);
  --glow-b: rgba(14, 165, 233, 0.10);
  --hover-tint: rgba(255, 255, 255, 0.02);
  --check-a: #242a3a;
  --check-b: #1b2030;
  --stage-shadow: rgba(0, 0, 0, 0.45);
  --overlay-bg: rgba(10, 12, 18, 0.78);
  --toast-bg: #e9edf5;
  --toast-text: #0b0d13;
  --sw-border: rgba(255, 255, 255, 0.10);
  --thumb-ring: #0d1017;
  --radius: 16px;
  color-scheme: dark;
}

:root[data-theme="light"] {
  --bg: #eef1f7;
  --surface: #ffffff;
  --surface-2: #f2f4fa;
  --surface-3: #e5e9f2;
  --border: #d9dfeb;
  --border-soft: #e8ebf3;
  --border-strong: #b9c2d4;
  --text: #161b26;
  --muted: #57627a;
  --faint: #616a7d;
  --icon: #46536e;
  --accent-ink: #4338ca;
  --good: #059669;
  --warn: #b45309;
  --bad: #dc2626;
  --glow-a: rgba(99, 102, 241, 0.10);
  --glow-b: rgba(14, 165, 233, 0.08);
  --hover-tint: rgba(15, 23, 42, 0.03);
  --check-a: #e2e6ef;
  --check-b: #f6f8fc;
  --stage-shadow: rgba(15, 23, 42, 0.18);
  --overlay-bg: rgba(255, 255, 255, 0.85);
  --toast-bg: #161b26;
  --toast-text: #f5f7fd;
  --sw-border: rgba(15, 23, 42, 0.12);
  --thumb-ring: #ffffff;
  color-scheme: light;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Inter, Helvetica, Arial, sans-serif;
  background:
    radial-gradient(900px 500px at 12% -10%, var(--glow-a), transparent 60%),
    radial-gradient(800px 460px at 95% 0%, var(--glow-b), transparent 55%),
    var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 20px;
}

/* header + hero */

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 20px 0 6px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 17px;
  letter-spacing: 0.01em;
}

.brand svg { display: block; border-radius: 8px; }

.header-side {
  display: flex;
  align-items: center;
  gap: 10px;
}

.header-note {
  font-size: 13px;
  color: var(--faint);
}

.iconbtn {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--muted);
  cursor: pointer;
  padding: 0;
}

.iconbtn:hover { color: var(--text); border-color: var(--border-strong); }

.iconbtn svg { display: block; }

.langbtn {
  width: auto;
  padding: 0 12px;
  font: inherit;
  font-size: 13px;
  font-weight: 600;
}

:root[data-theme="light"] .theme-moon { display: none; }
:root:not([data-theme="light"]) .theme-sun { display: none; }

.hero { padding: 18px 0 22px; }

.hero h1 {
  margin: 0 0 6px;
  font-size: clamp(22px, 3.4vw, 30px);
  line-height: 1.2;
  letter-spacing: -0.015em;
}

.hero p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  max-width: 640px;
}

/* layout */

.app {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 408px;
  gap: 22px;
  align-items: start;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

/* sections */

details.sec { border-top: 1px solid var(--border-soft); }
details.sec:first-child { border-top: 0; }

summary.sec-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 15px 18px;
  cursor: pointer;
  list-style: none;
  user-select: none;
  font-weight: 600;
  font-size: 14px;
}

summary.sec-head::-webkit-details-marker { display: none; }
summary.sec-head:hover { background: var(--hover-tint); }

.sec-ico { color: var(--faint); display: grid; place-items: center; }
.sec-ico svg { display: block; }

.sec-chevron {
  margin-inline-start: auto;
  color: var(--faint);
  transition: transform 0.18s ease;
}

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

.sec-body {
  padding: 4px 18px 20px;
  display: grid;
  gap: 15px;
}

.sec-note { font-size: 12px; color: var(--faint); margin: -4px 0 0; }

/* tabs */

.tabs { display: flex; flex-wrap: wrap; gap: 6px; }

.tab {
  border: 1px solid transparent;
  background: var(--surface-2);
  color: var(--muted);
  font: inherit;
  font-size: 13px;
  font-weight: 600;
  padding: 7px 13px;
  border-radius: 999px;
  cursor: pointer;
}

.tab:hover { color: var(--text); border-color: var(--border); }

.tab[aria-selected="true"] {
  background: linear-gradient(135deg, var(--accent-2), var(--accent));
  color: #fff;
}

/* fields */

.field { display: grid; gap: 6px; }

.field > label {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--muted);
}

input[type="text"],
input[type="url"],
input[type="tel"],
input[type="email"],
input[type="password"],
textarea,
select {
  width: 100%;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  color: var(--text);
  font: inherit;
  font-size: 14px;
}

input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.22);
}

textarea { min-height: 88px; resize: vertical; }

select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%2398a2b5' stroke-width='1.6' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 32px;
}

[dir="rtl"] select {
  background-position: left 12px center;
  padding-right: 12px;
  padding-left: 32px;
}

.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }

.check {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 13.5px;
  color: var(--muted);
  cursor: pointer;
}

.check input {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
  cursor: pointer;
}

.count { font-size: 12px; color: var(--faint); text-align: end; }

/* option grids (visual style pickers) */

.optgrid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(66px, 1fr));
  gap: 8px;
  min-height: 66px; /* reserve one row so JS-built buttons do not shift layout (CLS) */
}

button.opt {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px 4px 7px;
  display: grid;
  justify-items: center;
  gap: 5px;
  color: var(--icon);
  font: inherit;
  cursor: pointer;
}

button.opt svg { width: 30px; height: 30px; display: block; }

button.opt span { font-size: 10.5px; color: var(--muted); font-weight: 600; }

button.opt:hover { border-color: var(--border-strong); color: var(--text); }

button.opt.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
  background: var(--surface-3);
  color: var(--text);
}

button.opt.selected span { color: var(--accent-ink); }

/* segmented control */

.seg {
  display: flex;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 11px;
  padding: 3px;
  gap: 3px;
}

.seg button {
  flex: 1;
  border: 0;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 13px;
  font-weight: 600;
  padding: 7px 6px;
  border-radius: 8px;
  cursor: pointer;
  white-space: nowrap;
}

.seg button:hover { color: var(--text); }

.seg button.selected {
  background: linear-gradient(135deg, var(--accent-2), var(--accent));
  color: #fff;
}

/* preset chips */

.chips { display: flex; flex-wrap: wrap; gap: 8px; }

#preset-row { min-height: 74px; } /* reserve rows for JS-built preset chips (CLS) */

.chip {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px 7px 8px;
  border-radius: 999px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--muted);
  font: inherit;
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.12s ease, border-color 0.12s ease;
}

[dir="rtl"] .chip { padding: 7px 8px 7px 12px; }

.chip:hover { transform: translateY(-1px); border-color: var(--border-strong); color: var(--text); }

.chip.selected { border-color: var(--accent); color: var(--text); box-shadow: 0 0 0 1px var(--accent); }

.chip .dotc {
  width: 17px;
  height: 17px;
  border-radius: 50%;
  border: 1px solid var(--sw-border);
}

/* color fields */

.colorrow { display: flex; flex-wrap: wrap; gap: 12px; align-items: end; }

.colorfield { display: grid; gap: 6px; }

.colorfield > label { font-size: 12.5px; font-weight: 600; color: var(--muted); }

.cpair { display: flex; gap: 8px; align-items: center; }

input[type="color"] {
  -webkit-appearance: none;
  appearance: none;
  width: 40px;
  height: 40px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface-2);
  cursor: pointer;
}

input[type="color"]::-webkit-color-swatch-wrapper { padding: 4px; }
input[type="color"]::-webkit-color-swatch { border: none; border-radius: 7px; }
input[type="color"]::-moz-color-swatch { border: none; border-radius: 7px; }

input.hex {
  width: 92px;
  font-family: Consolas, "Cascadia Code", Menlo, monospace;
  font-size: 13px;
  text-transform: uppercase;
  direction: ltr;
}

/* swatches */

.swatches { display: flex; flex-wrap: wrap; gap: 7px; min-height: 26px; } /* reserve a row for JS-built swatches (CLS) */

button.sw {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 2px solid var(--sw-border);
  cursor: pointer;
  padding: 0;
  transition: transform 0.1s ease;
}

button.sw:hover { transform: scale(1.15); }

/* range sliders */

.rangewrap { display: flex; align-items: center; gap: 12px; }

.rangewrap output {
  min-width: 52px;
  text-align: end;
  font-size: 12.5px;
  color: var(--muted);
  font-family: Consolas, Menlo, monospace;
}

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  flex: 1;
  height: 4px;
  border-radius: 4px;
  background: var(--surface-3);
  cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-2), var(--accent));
  border: 3px solid var(--thumb-ring);
  box-shadow: 0 1px 6px rgba(0, 0, 0, 0.3);
}

input[type="range"]::-moz-range-thumb {
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-2), var(--accent));
  border: 3px solid var(--thumb-ring);
}

/* logo dropzone */

.dropzone {
  border: 1.5px dashed var(--border-strong);
  border-radius: 12px;
  padding: 20px 14px;
  text-align: center;
  color: var(--muted);
  font-size: 13.5px;
  cursor: pointer;
}

.dropzone:hover, .dropzone.drag {
  border-color: var(--accent);
  background: rgba(99, 102, 241, 0.06);
}

.dropzone .sub { color: var(--faint); font-size: 12px; margin-top: 3px; }

.logorow { display: flex; align-items: center; gap: 12px; }

.logorow img {
  width: 52px;
  height: 52px;
  object-fit: contain;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 4px;
}

.logorow .meta { flex: 1; font-size: 13px; color: var(--muted); min-width: 0; overflow-wrap: anywhere; }

/* buttons */

.btn {
  border: 0;
  border-radius: 11px;
  padding: 10px 14px;
  font: inherit;
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-2), var(--accent));
  color: #fff;
  box-shadow: 0 6px 18px rgba(85, 96, 240, 0.35);
}

.btn-primary:hover { filter: brightness(1.08); }

.btn-primary:disabled { opacity: 0.45; cursor: not-allowed; box-shadow: none; }

.btn-ghost {
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text);
}

.btn-ghost:hover { border-color: var(--border-strong); }

.btn-ghost:disabled { opacity: 0.45; cursor: not-allowed; }

.btn-danger { color: var(--bad); }

.btn-lg { padding: 13px 16px; font-size: 15px; width: 100%; }

.btnrow { display: flex; gap: 10px; flex-wrap: wrap; }

/* preview column */

.side { min-width: 0; }

.preview-card {
  position: sticky;
  top: 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  display: grid;
  gap: 13px;
}

.stage {
  position: relative;
  display: grid;
  place-items: center;
  padding: 16px;
  min-height: 362px; /* fits the rendered code (max 330px + padding) so it does not grow on render (CLS) */
  border-radius: 13px;
}

.stage.checker {
  background: repeating-conic-gradient(var(--check-a) 0 25%, var(--check-b) 0 50%);
  background-size: 22px 22px;
}

.stage svg {
  width: 100%;
  height: auto;
  max-width: 330px;
  display: block;
  filter: drop-shadow(0 12px 32px var(--stage-shadow));
}

.overlay {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 24px;
  font-size: 14px;
  color: var(--muted);
  background: var(--overlay-bg);
  border-radius: 13px;
  backdrop-filter: blur(2px);
}

.meta-line {
  text-align: center;
  font-size: 12px;
  color: var(--faint);
  min-height: 18px;
}

.scanline {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
}

.scanline .dot { width: 8px; height: 8px; border-radius: 50%; flex: none; }

.scanline.good .dot { background: var(--good); box-shadow: 0 0 8px var(--good); }
.scanline.fair .dot { background: var(--warn); box-shadow: 0 0 8px var(--warn); }
.scanline.poor .dot { background: var(--bad); box-shadow: 0 0 8px var(--bad); }

.scanline.good { color: var(--good); }
.scanline.fair { color: var(--warn); }
.scanline.poor { color: var(--bad); }

.scan-reasons {
  font-size: 12px;
  color: var(--faint);
  text-align: center;
  margin: -6px 0 0;
}

.export-row { display: flex; gap: 10px; }

.export-row .seg { flex: 1; }

.export-row select { width: 108px; flex: none; }

.tiny-note { font-size: 12px; color: var(--faint); text-align: center; }

/* ad slots: fully hidden until ads.js enables them */

.ad-slot {
  margin-top: 18px;
  display: grid;
  gap: 4px;
}

.ad-slot .ad-tag {
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--faint);
  text-align: center;
}

.ad-slot ins.adsbygoogle {
  display: block;
  border-radius: 12px;
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--border-soft);
  min-height: 250px;
}

/* faq */

.faq { padding: 34px 0 6px; }

.faq h2 { font-size: 20px; margin: 0 0 14px; }

.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 13px;
  margin-bottom: 8px;
}

.faq-item summary {
  padding: 13px 16px;
  cursor: pointer;
  font-weight: 600;
  font-size: 14px;
  list-style: none;
}

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

.faq-item p {
  margin: 0;
  padding: 0 16px 14px;
  color: var(--muted);
  font-size: 13.5px;
}

/* toast */

.toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  transform: translate(-50%, 12px);
  background: var(--toast-bg);
  color: var(--toast-text);
  padding: 11px 18px;
  border-radius: 12px;
  font-size: 13.5px;
  font-weight: 600;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.18s ease, transform 0.18s ease;
  z-index: 60;
  max-width: min(90vw, 480px);
  text-align: center;
}

.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* footer */

.site-footer {
  padding: 26px 0 44px;
  font-size: 13px;
  color: var(--faint);
  display: grid;
  gap: 4px;
}

.site-footer a { color: var(--muted); }

.hidden { display: none !important; }

[hidden] { display: none !important; }

:focus-visible { outline: 2px solid var(--accent-2); outline-offset: 2px; }

::selection { background: rgba(99, 102, 241, 0.4); }

/* responsive */

@media (max-width: 1000px) {
  .app { grid-template-columns: 1fr; }
  .side { order: -1; }
  .preview-card { position: static; }
  .stage { min-height: 312px; }
  .stage svg { max-width: 280px; }
  .header-note { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}