:root {
  --bg-cream: #f3ecdf;
  --bg-ink: #0d1c22;
  --bg-slate: #163543;
  --accent-cyan: #5cc4d6;
  --accent-gold: #d7a450;
  --panel-border: rgba(19, 39, 47, 0.12);
  --shadow-strong: 0 28px 90px rgba(10, 24, 30, 0.18);
  --shadow-soft: 0 12px 32px rgba(10, 24, 30, 0.1);
  --radius-xl: 28px;
  --radius-lg: 18px;
  --radius-md: 12px;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(circle at top left, rgba(92, 196, 214, 0.18), transparent 32%),
    radial-gradient(circle at 82% 20%, rgba(215, 164, 80, 0.16), transparent 26%),
    linear-gradient(145deg, #f8f3ea 0%, #efe5d4 48%, #e7ddcf 100%);
  color: #13272f;
  font-family: "Avenir Next", "Trebuchet MS", sans-serif;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.18) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.18) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: radial-gradient(circle at center, black 25%, transparent 80%);
  opacity: 0.22;
}

.app-shell {
  min-height: 100vh;
  padding: 22px;
  display: grid;
  gap: 22px;
  grid-template-columns: minmax(320px, 380px) minmax(0, 1fr);
}

.control-panel,
.viewer-frame {
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-strong);
}

.control-panel {
  position: relative;
  overflow: hidden;
  padding: 28px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(245, 237, 224, 0.96)),
    linear-gradient(135deg, rgba(92, 196, 214, 0.08), rgba(215, 164, 80, 0.12));
  border: 1px solid var(--panel-border);
}

.control-panel::after {
  content: "";
  position: absolute;
  inset: auto -8% -18% auto;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(92, 196, 214, 0.18), transparent 72%);
  pointer-events: none;
}

.panel-copy {
  margin-bottom: 22px;
}

.eyebrow {
  margin: 0 0 10px;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: 0.72rem;
  color: rgba(19, 39, 47, 0.62);
}

h1 {
  margin: 0;
  font-family: "Iowan Old Style", "Palatino Linotype", serif;
  font-size: clamp(2.1rem, 4vw, 3rem);
  line-height: 0.96;
}

.lead {
  margin: 14px 0 0;
  max-width: 28ch;
  line-height: 1.55;
  color: rgba(19, 39, 47, 0.84);
}

.control-form {
  display: grid;
  gap: 16px;
}

.field {
  display: grid;
  gap: 8px;
}

.field-label,
.advanced-panel summary {
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.field-inline {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
}

input[type="range"] {
  width: 100%;
  appearance: none;
  height: 10px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(92, 196, 214, 0.22), rgba(23, 53, 67, 0.12));
  outline: none;
}

input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.9);
  background: linear-gradient(180deg, #1b4d5e, #173543);
  box-shadow: var(--shadow-soft);
  cursor: pointer;
}

input[type="range"]::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.9);
  background: linear-gradient(180deg, #1b4d5e, #173543);
  box-shadow: var(--shadow-soft);
  cursor: pointer;
}

select,
button,
output {
  font: inherit;
}

select {
  width: 100%;
  padding: 13px 14px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(19, 39, 47, 0.12);
  background: rgba(255, 255, 255, 0.75);
  color: #13272f;
}

output {
  min-width: 72px;
  padding: 8px 10px;
  text-align: center;
  border-radius: 999px;
  background: rgba(23, 53, 67, 0.08);
  color: #173543;
  font-weight: 700;
}

.stat-grid {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.stat-card {
  padding: 14px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(19, 39, 47, 0.08);
}

.stat-card span {
  display: block;
  margin-bottom: 6px;
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: rgba(19, 39, 47, 0.56);
}

.stat-card strong {
  font-size: 1rem;
}

.advanced-panel {
  padding: 16px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(19, 39, 47, 0.08);
  background: rgba(255, 255, 255, 0.64);
}

.advanced-panel summary {
  cursor: pointer;
  list-style: none;
}

.advanced-panel[open] summary {
  margin-bottom: 14px;
}

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

.button-row {
  display: grid;
  gap: 10px;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
}

.donation-card {
  display: grid;
  gap: 14px;
  padding: 18px;
  border-radius: var(--radius-lg);
  background:
    linear-gradient(135deg, rgba(215, 164, 80, 0.18), rgba(92, 196, 214, 0.08)),
    rgba(255, 255, 255, 0.74);
  border: 1px solid rgba(19, 39, 47, 0.1);
}

.donation-card h2 {
  margin: 0 0 8px;
  font-size: 1.25rem;
  font-family: "Iowan Old Style", "Palatino Linotype", serif;
}

.donation-card p {
  margin: 0;
  line-height: 1.5;
}

.donation-eyebrow {
  margin: 0 0 6px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.72rem;
  color: rgba(19, 39, 47, 0.58);
}

.donation-button {
  color: #13272f;
  background: linear-gradient(135deg, #d7a450, #e7c37a);
}

button {
  border: 0;
  cursor: pointer;
  border-radius: 999px;
  padding: 14px 16px;
  color: white;
  background: linear-gradient(135deg, #173543, #23576d);
  box-shadow: var(--shadow-soft);
  transition: transform 180ms ease, filter 180ms ease;
}

button:hover {
  transform: translateY(-1px);
  filter: brightness(1.03);
}

.ghost-button {
  color: #173543;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(19, 39, 47, 0.14);
}

.viewer-panel {
  min-width: 0;
  display: grid;
  gap: 16px;
  align-content: start;
}

.viewer-frame {
  position: relative;
  min-height: calc(100vh - 44px);
  overflow: hidden;
  background:
    radial-gradient(circle at 20% 18%, rgba(92, 196, 214, 0.12), transparent 24%),
    radial-gradient(circle at 84% 22%, rgba(215, 164, 80, 0.12), transparent 18%),
    linear-gradient(180deg, #0e1f27, #122d39 58%, #10252f 100%);
}

.viewer-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 44px 44px;
  opacity: 0.34;
}

#cloud-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  touch-action: none;
}

.viewer-empty {
  position: absolute;
  z-index: 2;
}

.viewer-overlay {
  padding: 16px 18px;
  border-radius: 20px;
  color: rgba(247, 251, 252, 0.94);
  background: rgba(14, 31, 39, 0.86);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow-soft);
  display: grid;
  gap: 12px;
}

.viewer-inspector {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.viewer-overlay-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.overlay-drawer {
  display: grid;
  grid-template-rows: 1fr;
  opacity: 1;
  transition: grid-template-rows 220ms ease, opacity 220ms ease;
}

.overlay-drawer > .overlay-content {
  overflow: hidden;
}

.overlay-content {
  display: grid;
  gap: 6px;
}

.overlay-content p {
  margin: 0;
}

.viewer-overlay p,
.viewer-empty p {
  margin: 6px 0 0;
  line-height: 1.45;
  font-size: 0.9rem;
}

.overlay-title {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.72rem;
  color: rgba(215, 164, 80, 0.9);
}

.overlay-toggle {
  padding: 8px 12px;
  border-radius: 999px;
  color: rgba(247, 251, 252, 0.94);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: none;
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.overlay-toggle:hover {
  transform: none;
  filter: brightness(1.08);
}

.viewer-overlay.is-collapsed {
  gap: 8px;
}

.viewer-overlay.is-collapsed .overlay-drawer {
  grid-template-rows: 0fr;
  opacity: 0;
}

.viewer-empty {
  max-width: min(320px, calc(100% - 32px));
  padding: 16px 18px;
  border-radius: 20px;
  color: rgba(247, 251, 252, 0.94);
  background: rgba(6, 18, 24, 0.54);
  border: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(14px);
  inset: 50% auto auto 50%;
  transform: translate(-50%, -50%);
  text-align: center;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 10;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(4, 14, 19, 0.62);
  backdrop-filter: blur(12px);
}

.modal-card {
  position: relative;
  width: min(420px, 100%);
  padding: 26px;
  border-radius: 28px;
  color: #13272f;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(246, 238, 225, 0.98)),
    white;
  box-shadow: var(--shadow-strong);
}

.modal-card h2 {
  margin: 0 0 10px;
  font-family: "Iowan Old Style", "Palatino Linotype", serif;
  font-size: 2rem;
  line-height: 0.95;
}

.modal-copy {
  margin: 0 0 18px;
  line-height: 1.55;
}

.modal-close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 42px;
  height: 42px;
  padding: 0;
  border-radius: 50%;
  font-size: 1.6rem;
  line-height: 1;
  color: #173543;
  background: rgba(23, 53, 67, 0.08);
  box-shadow: none;
}

.pix-qr-frame {
  display: grid;
  place-items: center;
  padding: 16px;
  margin-bottom: 18px;
  border-radius: 22px;
  background:
    radial-gradient(circle at top, rgba(92, 196, 214, 0.12), transparent 50%),
    rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(19, 39, 47, 0.08);
}

.pix-qr-frame img {
  display: block;
  width: min(280px, 100%);
  height: auto;
  border-radius: 16px;
}

.pix-key-panel {
  display: grid;
  gap: 8px;
  padding: 16px;
  border-radius: 20px;
  background: rgba(23, 53, 67, 0.06);
  border: 1px solid rgba(19, 39, 47, 0.08);
}

.pix-key-label {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: rgba(19, 39, 47, 0.58);
}

.pix-key-panel code {
  overflow-wrap: anywhere;
  font-size: 1rem;
  color: #173543;
}

.modal-actions {
  display: grid;
  gap: 10px;
  margin-top: 16px;
}

.copy-status {
  min-height: 1.1rem;
  font-size: 0.88rem;
  color: rgba(19, 39, 47, 0.68);
}

@media (max-width: 980px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .viewer-panel {
    order: -1;
  }

  .control-panel {
    order: 1;
  }

  .viewer-frame {
    min-height: 68vh;
  }

  .viewer-inspector {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .app-shell {
    padding: 14px;
    gap: 14px;
  }

  .control-panel {
    padding: 20px;
  }

  .viewer-frame {
    min-height: 56vh;
  }

  .button-row,
  .stat-grid {
    grid-template-columns: 1fr;
  }

  .modal-card {
    padding: 22px;
  }

  .viewer-overlay {
    padding: 14px 16px;
  }
}