:root {
  --ink: #0f1c24;
  --ink-soft: #3a4f5c;
  --paper: #f3f7f5;
  --panel: rgba(255, 255, 255, 0.82);
  --line: rgba(15, 28, 36, 0.12);
  --teal: #0d7a6f;
  --teal-deep: #065f56;
  --mint: #b8e0d2;
  --amber: #d97706;
  --danger: #b91c1c;
  --shadow: 0 18px 50px rgba(15, 28, 36, 0.08);
  --radius: 18px;
  --font: "Outfit", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  color: var(--ink);
  background:
    radial-gradient(1200px 600px at 8% -10%, rgba(13, 122, 111, 0.18), transparent 55%),
    radial-gradient(900px 500px at 100% 0%, rgba(184, 224, 210, 0.55), transparent 50%),
    linear-gradient(180deg, #e8f2ee 0%, var(--paper) 42%, #eef3f1 100%);
  position: relative;
}

.bg-grid {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(15, 28, 36, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15, 28, 36, 0.035) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: radial-gradient(ellipse at center, black 40%, transparent 85%);
  z-index: 0;
}

.bg-glow {
  position: fixed;
  width: 420px;
  height: 420px;
  right: -80px;
  bottom: 10%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(13, 122, 111, 0.16), transparent 70%);
  filter: blur(10px);
  pointer-events: none;
  z-index: 0;
  animation: drift 14s ease-in-out infinite alternate;
}

@keyframes drift {
  from { transform: translateY(0) scale(1); }
  to { transform: translateY(-30px) scale(1.08); }
}

.site-header,
.layout,
.site-footer {
  position: relative;
  z-index: 1;
}

.site-header {
  max-width: 1180px;
  margin: 0 auto;
  padding: 28px 24px 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

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

.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background:
    linear-gradient(145deg, var(--teal) 0%, var(--teal-deep) 100%);
  position: relative;
  box-shadow: 0 10px 24px rgba(13, 122, 111, 0.28);
  animation: mark-in 0.7s ease both;
}

.brand-mark::before,
.brand-mark::after {
  content: "";
  position: absolute;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 1px;
}

.brand-mark::before {
  inset: 10px 14px;
  background:
    repeating-linear-gradient(
      90deg,
      rgba(255, 255, 255, 0.95) 0 2px,
      transparent 2px 4px
    );
}

.brand-mark::after {
  width: 10px;
  height: 10px;
  right: 8px;
  bottom: 8px;
  border: 2px solid rgba(255, 255, 255, 0.95);
  background: transparent;
  border-radius: 2px;
}

@keyframes mark-in {
  from { opacity: 0; transform: scale(0.85) rotate(-6deg); }
  to { opacity: 1; transform: scale(1) rotate(0); }
}

.brand-name {
  margin: 0;
  font-size: clamp(1.45rem, 2.4vw, 1.85rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.header-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.layout {
  max-width: 1180px;
  margin: 0 auto;
  padding: 18px 24px 40px;
  display: grid;
  grid-template-columns: minmax(280px, 380px) 1fr;
  gap: 20px;
  align-items: start;
}

.panel {
  background: var(--panel);
  backdrop-filter: blur(14px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.panel-controls {
  padding: 18px;
  animation: rise 0.55s ease both;
}

.panel-preview {
  padding: 20px;
  min-height: 560px;
  animation: rise 0.7s ease both;
}

@keyframes rise {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  padding: 5px;
  background: rgba(15, 28, 36, 0.05);
  border-radius: 12px;
  margin-bottom: 18px;
}

.tab {
  border: 0;
  background: transparent;
  color: var(--ink-soft);
  font: inherit;
  font-weight: 600;
  padding: 10px 12px;
  border-radius: 9px;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, transform 0.15s;
}

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

.tab.is-active {
  background: #fff;
  color: var(--teal-deep);
  box-shadow: 0 4px 14px rgba(15, 28, 36, 0.08);
}

.form {
  display: grid;
  gap: 14px;
}

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

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

.field > span {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--ink-soft);
}

.field input,
.field select {
  width: 100%;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  border-radius: 10px;
  padding: 11px 12px;
  font: inherit;
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.field input:focus,
.field select:focus {
  border-color: rgba(13, 122, 111, 0.55);
  box-shadow: 0 0 0 3px rgba(13, 122, 111, 0.12);
}

.file-field input[type="file"] {
  padding: 10px;
  font-size: 0.88rem;
}

.hint {
  margin: 0;
  font-size: 0.78rem;
  color: var(--ink-soft);
  line-height: 1.45;
}

.hint code {
  font-family: var(--mono);
  font-size: 0.75rem;
  background: rgba(13, 122, 111, 0.1);
  padding: 1px 5px;
  border-radius: 4px;
}

.bulk-summary {
  padding: 10px 12px;
  border-radius: 10px;
  background: rgba(13, 122, 111, 0.08);
  border: 1px solid rgba(13, 122, 111, 0.18);
  font-size: 0.88rem;
  color: var(--teal-deep);
}

.logo-wrap {
  display: grid;
  gap: 10px;
}

.logo-preview {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px;
  border-radius: 12px;
  background: #fff;
  border: 1px solid var(--line);
}

.logo-preview img {
  width: 52px;
  height: 52px;
  object-fit: contain;
  border-radius: 8px;
  background:
    linear-gradient(45deg, #e8eeeC 25%, transparent 25%) 0 0 / 10px 10px,
    linear-gradient(-45deg, #e8eeec 25%, transparent 25%) 0 5px / 10px 10px,
    #fff;
  border: 1px solid var(--line);
}

.logo-preview-meta {
  display: grid;
  gap: 6px;
  flex: 1;
  min-width: 0;
}

.logo-status {
  margin: 0;
  font-size: 0.8rem;
  color: var(--ink-soft);
  line-height: 1.35;
  word-break: break-word;
}

.btn-sm {
  padding: 7px 12px;
  font-size: 0.82rem;
  width: fit-content;
}

.check {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--ink-soft);
  cursor: pointer;
}

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

.actions,
.export-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.btn {
  border: 0;
  border-radius: 10px;
  font: inherit;
  font-weight: 650;
  padding: 11px 16px;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.15s, background 0.15s, box-shadow 0.15s, opacity 0.15s;
}

.btn:active:not(:disabled) {
  transform: translateY(1px);
}

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

.btn-primary {
  background: linear-gradient(145deg, var(--teal), var(--teal-deep));
  color: #fff;
  box-shadow: 0 10px 22px rgba(13, 122, 111, 0.28);
}

.btn-primary:hover:not(:disabled) {
  box-shadow: 0 12px 26px rgba(13, 122, 111, 0.36);
}

.btn-secondary {
  background: #fff;
  color: var(--ink);
  border: 1px solid var(--line);
}

.btn-secondary:hover:not(:disabled) {
  border-color: rgba(13, 122, 111, 0.35);
  color: var(--teal-deep);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.55);
  color: var(--teal-deep);
  border: 1px solid rgba(13, 122, 111, 0.2);
  font-size: 0.88rem;
}

.btn-ghost:hover {
  background: #fff;
}

[hidden] {
  display: none !important;
}

.mode-block.is-hidden,
.is-hidden,
.preview-empty.is-hidden {
  display: none !important;
}

.preview-empty[hidden] {
  display: none !important;
}

.preview-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.preview-head h1 {
  margin: 0;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
}

.preview-meta {
  margin: 4px 0 0;
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.preview-empty {
  min-height: 380px;
  display: grid;
  place-content: center;
  gap: 14px;
  text-align: center;
  color: var(--ink-soft);
}

.preview-empty.is-hidden {
  display: none !important;
}

.empty-visual {
  width: 88px;
  height: 88px;
  margin: 0 auto;
  border-radius: 20px;
  background:
    repeating-linear-gradient(
      90deg,
      rgba(13, 122, 111, 0.35) 0 3px,
      transparent 3px 7px
    ),
    rgba(13, 122, 111, 0.08);
  border: 1px dashed rgba(13, 122, 111, 0.35);
  animation: pulse 2.4s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.65; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.03); }
}

.preview-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  align-items: stretch;
}

.preview-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px 12px 12px;
  display: grid;
  grid-template-rows: auto auto auto;
  gap: 8px;
  justify-items: stretch;
  text-align: center;
  min-width: 0;
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
  animation: card-in 0.35s ease both;
}

.preview-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(15, 28, 36, 0.08);
}

@keyframes card-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.card-media,
.code-media {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 0;
}

.qr-holder {
  display: grid;
  place-items: center;
  line-height: 0;
  width: 100%;
  max-width: 100%;
}

.qr-holder canvas,
.code-media canvas,
.preview-card canvas,
.preview-card svg {
  display: block !important;
  max-width: 100% !important;
  width: auto;
  height: auto !important;
  object-fit: contain;
}

.qr-holder img {
  display: none !important;
}

.preview-card .label {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--ink);
  word-break: break-word;
  line-height: 1.3;
}

.preview-card .value {
  font-family: var(--font);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--ink);
  word-break: break-all;
  line-height: 1.35;
}

.preview-card .error {
  color: var(--danger);
  font-size: 0.8rem;
  font-weight: 600;
}

.size-sm .card-media { min-height: 72px; }
.size-md .card-media { min-height: 96px; }
.size-lg .card-media { min-height: 112px; }

@media (max-width: 900px) {
  .preview-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 560px) {
  .preview-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

.site-footer {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px 36px;
  color: var(--ink-soft);
  font-size: 0.86rem;
}

.site-footer p {
  margin: 0;
}

.site-footer .credit {
  margin-top: 8px;
  font-size: 0.9rem;
  color: var(--teal-deep);
}

.site-footer .credit strong {
  font-weight: 700;
  letter-spacing: 0.04em;
}

@media (max-width: 900px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .site-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .preview-head {
    flex-direction: column;
  }

  .field-row {
    grid-template-columns: 1fr;
  }
}