/* Pixel Wall styles (Ko-fi edition)
   Editorial minimal: warm paper background, Fraunces serif display,
   IBM Plex for body and data. The wall is the centerpiece. */

[hidden] { display: none !important; }

:root {
  --bg: #F4F1EA;
  --frame: #ECE7DA;
  --fg: #1A1814;
  --fg-soft: #2D2A24;
  --muted: #6B655A;
  --border: #D9D3C5;
  --border-strong: #B5AD9C;
  --black: #0E0D0A;
  --kofi: #29ABE0;
  --kofi-dark: #1d8bb5;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: 'IBM Plex Sans', system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 22px 32px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 10;
}

.brand {
  font-family: 'Fraunces', serif;
  font-size: 19px;
  font-weight: 500;
  letter-spacing: -0.01em;
  font-variation-settings: "SOFT" 50;
}

.counter {
  font-family: 'IBM Plex Mono', ui-monospace, monospace;
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.02em;
  font-feature-settings: "tnum" 1;
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 80px 32px 64px;
}

.hero { margin-bottom: 80px; }

.title {
  font-family: 'Fraunces', serif;
  font-size: clamp(48px, 9vw, 92px);
  font-weight: 400;
  line-height: 1.0;
  letter-spacing: -0.035em;
  margin: 0 0 32px;
  font-variation-settings: "SOFT" 30, "opsz" 144;
}

.title em {
  font-style: italic;
  font-weight: 300;
  font-variation-settings: "SOFT" 100, "opsz" 144;
}

.lede {
  font-size: 17px;
  line-height: 1.55;
  color: var(--fg-soft);
  max-width: 540px;
  margin: 0;
}

.wall-section { margin-bottom: 80px; }

.wall-frame {
  position: relative;
  background: var(--frame);
  padding: 18px;
  border-radius: 2px;
  margin-bottom: 24px;
  box-shadow: 0 1px 0 rgba(0,0,0,0.04);
}

#wall {
  display: block;
  width: 100%;
  aspect-ratio: 1 / 1;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  background: white;
  cursor: crosshair;
  border: 1px solid rgba(0,0,0,0.08);
}

.back-btn {
  position: absolute;
  top: 30px;
  left: 30px;
  background: rgba(255,255,255,0.95);
  border: 1px solid var(--border-strong);
  padding: 7px 14px;
  border-radius: 2px;
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 12px;
  font-weight: 500;
  color: var(--fg);
  cursor: pointer;
  letter-spacing: 0.02em;
}

.back-btn::before { content: "←"; margin-right: 6px; display: inline-block; }
.back-btn:hover { background: white; }

.mode-label {
  position: absolute;
  top: 30px;
  right: 30px;
  background: rgba(14,13,10,0.85);
  color: white;
  padding: 6px 12px;
  border-radius: 2px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 500;
}

.progress-stats {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 10px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  font-feature-settings: "tnum" 1;
  letter-spacing: 0.02em;
}

.placed-count strong { font-weight: 500; color: var(--fg); margin-right: 6px; }
.placed-count, .placed-percent { color: var(--muted); }

.progress-bar {
  height: 3px;
  background: var(--frame);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--fg);
  width: 0%;
  transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.section-label {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 16px;
  font-weight: 500;
}

.claim-section {
  background: white;
  border: 1px solid var(--border);
  padding: 36px;
  margin-bottom: 80px;
}

.claim-title {
  font-family: 'Fraunces', serif;
  font-size: 32px;
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0 0 32px;
}

.claim-title span {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 14px;
  color: var(--muted);
  letter-spacing: 0;
  margin-left: 8px;
  font-weight: 400;
}

.form-group { margin-bottom: 24px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-row .form-group { margin-bottom: 24px; }

.form-group label {
  display: block;
  font-size: 12px;
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--fg);
  letter-spacing: 0.02em;
}

.palette {
  display: grid;
  grid-template-columns: repeat(11, 1fr);
  gap: 6px;
}

.color {
  aspect-ratio: 1;
  cursor: pointer;
  border: 2px solid transparent;
  transition: transform 0.12s, border-color 0.12s;
}

.color:hover { transform: scale(1.05); }

.color.selected {
  border-color: var(--fg);
  transform: scale(1.1);
}

input[type="text"] {
  width: 100%;
  padding: 11px 14px;
  font-size: 14px;
  font-family: 'IBM Plex Sans', sans-serif;
  border: 1px solid var(--border);
  background: white;
  border-radius: 0;
  color: var(--fg);
  transition: border-color 0.12s;
}

input[type="text"]:focus { outline: none; border-color: var(--fg); }
input[type="text"]::placeholder { color: #B5AD9C; }

.cta {
  width: 100%;
  padding: 16px 24px;
  background: var(--black);
  color: white;
  border: none;
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  border-radius: 0;
  margin-top: 8px;
  letter-spacing: 0.02em;
  transition: opacity 0.12s, transform 0.06s;
}

.cta:hover:not(:disabled) { opacity: 0.88; }
.cta:active:not(:disabled) { transform: translateY(1px); }
.cta:disabled { opacity: 0.25; cursor: not-allowed; }

.fine-print {
  font-size: 12px;
  color: var(--muted);
  text-align: center;
  margin: 14px 0 0;
  line-height: 1.5;
}

.about { margin-bottom: 80px; max-width: 540px; }
.about p { margin: 0 0 16px; font-size: 17px; line-height: 1.6; }

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  padding-top: 40px;
  border-top: 1px solid var(--border);
  margin-bottom: 80px;
}

.step { display: flex; flex-direction: column; gap: 12px; }

.step-num {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.12em;
  font-weight: 500;
}

.step p { margin: 0; font-size: 14px; line-height: 1.5; color: var(--fg-soft); }

footer {
  border-top: 1px solid var(--border);
  padding: 28px 32px;
  text-align: center;
  font-size: 12px;
  color: var(--muted);
  font-family: 'IBM Plex Mono', monospace;
  letter-spacing: 0.02em;
}

footer p { margin: 0; }

/* Payment modal */
.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(14, 13, 10, 0.55);
  cursor: pointer;
}

.modal-content {
  position: relative;
  background: white;
  max-width: 480px;
  width: 100%;
  padding: 40px 36px 32px;
  border: 1px solid var(--border);
  max-height: 90vh;
  overflow-y: auto;
}

.modal-close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 32px;
  height: 32px;
  background: transparent;
  border: none;
  font-size: 22px;
  cursor: pointer;
  color: var(--muted);
  line-height: 1;
  border-radius: 0;
  transition: color 0.12s;
}

.modal-close:hover { color: var(--fg); }

.modal-title {
  font-family: 'Fraunces', serif;
  font-size: 32px;
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0 0 16px;
}

.modal-title em { font-style: italic; font-weight: 300; }

.modal-text {
  font-size: 15px;
  color: var(--fg-soft);
  margin: 0 0 24px;
  line-height: 1.55;
}

.modal-step {
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 14px;
  align-items: start;
  margin-bottom: 20px;
}

.modal-step-num {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--fg);
  color: white;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 13px;
  font-weight: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
}

.modal-step-title {
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.01em;
  color: var(--fg);
  margin: 4px 0 10px;
  line-height: 1.4;
}

.modal-step:last-of-type .modal-step-title {
  margin-bottom: 0;
}

.payment-code {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--frame);
  padding: 16px 18px;
  border: 1px solid var(--border);
  margin-bottom: 8px;
}

.payment-code code {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 22px;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--fg);
  flex: 1;
  user-select: all;
  word-break: break-all;
}

.copy-confirm {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #1D9E75;
  margin: 0 0 4px;
  font-weight: 500;
}

/* Annotated Ko-fi screenshot inside Step 2.
   --arrow-top/--arrow-left position the arrow tip relative to the image;
   tweak after dropping in a new screenshot. */
.kofi-screenshot {
  --arrow-top: 74%;
  --arrow-left: 54%;
  --arrow-size: 70px;
  --label-top: calc(var(--arrow-top) - 28px);
  --label-left: calc(var(--arrow-left) - 140px);
  position: relative;
  margin: 14px 0 4px;
  border: 1px solid var(--border);
  background: white;
  display: block;
  line-height: 0;
}

.kofi-screenshot img {
  display: block;
  width: 100%;
  height: auto;
}

.kofi-arrow {
  position: absolute;
  top: var(--arrow-top);
  left: var(--arrow-left);
  width: var(--arrow-size);
  height: var(--arrow-size);
  transform: translate(-100%, -100%);
  pointer-events: none;
}

.kofi-arrow svg {
  width: 100%;
  height: 100%;
  filter: drop-shadow(0 1px 2px rgba(0,0,0,0.25));
}

.kofi-arrow-label {
  position: absolute;
  top: var(--label-top);
  left: var(--label-left);
  background: #E24B4A;
  color: white;
  padding: 6px 12px;
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.02em;
  white-space: nowrap;
  line-height: 1.2;
  box-shadow: 0 2px 6px rgba(0,0,0,0.18);
  pointer-events: none;
}

.modal-warning {
  display: grid;
  grid-template-columns: 24px 1fr;
  gap: 10px;
  align-items: start;
  background: #FBF1D6;
  border: 1px solid #E8CE7A;
  border-left: 3px solid #C9A227;
  padding: 14px 16px;
  margin-bottom: 20px;
}

.modal-warning-icon {
  font-size: 16px;
  line-height: 1.4;
  color: #8A6A0E;
}

.modal-warning p {
  font-size: 13px;
  line-height: 1.5;
  color: #5A4A0E;
  margin: 0;
}

.modal-warning strong {
  font-weight: 500;
  color: #3F340A;
}

#copy-token {
  background: var(--fg);
  color: white;
  border: none;
  padding: 8px 16px;
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  border-radius: 0;
  transition: opacity 0.12s;
  letter-spacing: 0.02em;
}

#copy-token:hover { opacity: 0.85; }

.modal-cta {
  display: block;
  width: 100%;
  padding: 16px 24px;
  background: var(--kofi);
  color: white;
  border: none;
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  text-align: center;
  text-decoration: none;
  border-radius: 0;
  margin-bottom: 24px;
  letter-spacing: 0.02em;
  transition: background 0.12s;
}

.modal-cta:hover { background: var(--kofi-dark); }

#modal-success .modal-cta,
#modal-expired .modal-cta {
  background: var(--black);
}

#modal-success .modal-cta:hover,
#modal-expired .modal-cta:hover {
  opacity: 0.88;
  background: var(--black);
}

.modal-status {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--muted);
  font-family: 'IBM Plex Mono', monospace;
  margin-bottom: 16px;
}

.modal-spinner {
  display: inline-block;
  width: 12px;
  height: 12px;
  border: 2px solid var(--border);
  border-top-color: var(--fg);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.modal-hint {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.5;
  margin: 0;
}

/* Mobile */
@media (max-width: 600px) {
  main { padding: 56px 20px 48px; }
  .site-header { padding: 18px 20px; }
  footer { padding: 24px 20px; }
  .hero { margin-bottom: 56px; }
  .wall-section { margin-bottom: 56px; }
  .claim-section { padding: 24px; margin-bottom: 56px; }
  .about { margin-bottom: 56px; }
  .steps { grid-template-columns: 1fr; gap: 24px; padding-top: 28px; margin-bottom: 56px; }
  .form-row { grid-template-columns: 1fr; gap: 0; }
  .palette { grid-template-columns: repeat(11, 1fr); gap: 4px; }
  .back-btn { top: 24px; left: 24px; }
  .mode-label { top: 24px; right: 24px; }
  .lede, .about p { font-size: 15px; }
  .modal-content { padding: 32px 24px 24px; }
  .modal-title { font-size: 26px; }
  .payment-code code { font-size: 16px; }
}