/* Sketch Reveal — minimalist brutalist B&W */

:root {
  --bg: #000;
  --surface: #0a0a0a;
  --paper: #fff;
  --border: #333;
  --text: #fff;
  --text-muted: #888;
  --ink: #000;
  --radius: 0;
  --font: "Space Grotesk", system-ui, sans-serif;
}

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

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
}

.noise {
  display: none;
}
.gradient-orb {
  display: none;
}

/* Header */
.header {
  position: relative;
  z-index: 1;
  padding: 2rem 1.5rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.header__clip {
  display: block;
}
.title {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.title__main {
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.03em;
  text-transform: uppercase;
}
.title__sub {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.15em;
}

/* Main */
.main {
  flex: 1;
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.5rem;
  width: 100%;
}

/* Upload zone */
.upload-zone {
  position: relative;
  border: 2px solid var(--border);
  background: var(--surface);
  padding: 3rem 2rem;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.upload-zone:hover,
.upload-zone.drag-over {
  border-color: var(--text);
  background: #111;
}
.upload-zone:active {
  background: #0a0a0a;
}

.file-input {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
  z-index: 2;
  font-size: 0;
}

.upload-zone__content {
  display: block;
  cursor: pointer;
}
.upload-zone__icon {
  color: var(--text-muted);
  margin-bottom: 1rem;
}
.upload-zone__icon svg {
  display: block;
  margin: 0 auto;
}
.upload-zone__text {
  margin: 0 0 0.25rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.upload-zone__hint {
  margin: 0 0 1.25rem;
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.upload-zone__btn {
  display: inline-block;
  padding: 0.6rem 1.25rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--bg);
  background: var(--text);
  cursor: pointer;
  transition: opacity 0.15s;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.upload-zone__btn:hover {
  opacity: 0.85;
}

/* Controls */
.controls {
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}
.controls__row {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 1rem;
}
.control__label {
  display: block;
  font-size: 0.65rem;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}
.control__select {
  font-family: var(--font);
  font-size: 0.85rem;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  min-width: 120px;
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23888' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.5rem center;
  padding-right: 1.5rem;
}
.control__select:focus {
  outline: none;
  border-color: var(--text);
}
.btn {
  font-family: var(--font);
  font-weight: 600;
  font-size: 0.75rem;
  padding: 0.5rem 1rem;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.btn:active {
  background: #111;
}
.btn--primary {
  background: var(--text);
  color: var(--bg);
  border-color: var(--text);
}
.btn--primary:hover {
  opacity: 0.9;
}
.btn--secondary {
  background: transparent;
  color: var(--text);
}
.btn--secondary:hover {
  border-color: var(--text);
  background: #111;
}

/* Stage */
.stage {
  margin-top: 0;
}
.stage__wrap {
  overflow: visible;
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 0;
}
.stage__paper {
  background: var(--paper);
  overflow: hidden;
  position: relative;
  width: 100%;
  max-height: 75vh;
  border-bottom: 1px solid var(--border);
}
.stage__paper[style*="aspect-ratio"] .stage__inner {
  position: absolute;
  inset: 0;
  min-height: 0;
}
.stage__inner {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 280px;
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 0 auto;
}
.stage__paper .stage__inner {
  min-height: 200px;
}
.stage__inner svg {
  display: block;
  width: 100%;
  height: 100%;
  max-height: 70vh;
  object-fit: contain;
}
.stage__inner svg path {
  fill: none;
  stroke: var(--ink);
  stroke-width: 1;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 0;
  stroke-dashoffset: 0;
  transition: none;
}

/* Drawing progress */
.drawing-progress {
  margin: 0;
  padding: 1rem 1.25rem;
  border-top: 1px solid var(--border);
}
.drawing-progress__bar {
  height: 2px;
  background: var(--border);
  overflow: hidden;
  margin-bottom: 0.5rem;
}
.drawing-progress__fill {
  height: 100%;
  width: 0%;
  background: var(--text);
  transition: width 0.12s ease-out;
}
.drawing-progress__status {
  margin: 0;
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.drawing-progress.drawing-progress--complete .drawing-progress__status {
  color: var(--text);
  font-weight: 600;
}

/* Loading */
.loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 3rem;
  text-align: center;
  border: 1px solid var(--border);
}
.loading__spinner {
  width: 32px;
  height: 32px;
  border: 2px solid var(--border);
  border-top-color: var(--text);
  animation: spin 0.7s linear infinite;
}
.loading__text {
  margin: 0;
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* Footer — credit */
.footer {
  margin-top: auto;
  padding: 2rem 1.5rem;
  text-align: center;
  border-top: 1px solid var(--border);
}
.footer__by {
  font-size: 0.65rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  margin-right: 0.35rem;
}
.footer__name {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.08em;
}

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

@media (max-width: 600px) {
  .controls__row {
    flex-direction: column;
    align-items: stretch;
  }
  .control__select {
    min-width: 100%;
  }
}