/* ==========================================================================
   dots v2.1 — "terminal refinado"
   Convertidor de imagen a ASCII art · vicbas.com/dots
   ========================================================================== */

/* ----- tokens ----- */
:root {
  --bg: #0a0a0b;
  --surface: #111113;
  --surface-2: #16161a;
  --surface-3: #1b1b20;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --text: #e6e6e9;
  --muted: #9a9aa3;
  --faint: #5c5c66;
  --accent: #9d4edd;
  --accent-dim: rgba(157, 78, 221, 0.14);
  --ok: #4ade80;
  --warn: #fbbf24;
  --danger: #f87171;

  --font-mono: "JetBrains Mono", "SFMono-Regular", Menlo, Consolas, monospace;
  --font-text: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;

  --radius-sm: 6px;
  --radius-md: 10px;
  --statusbar-h: 34px;
}

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

* {
  margin: 0;
}

/* `hidden` gana siempre: sin esto, reglas autor como
       .btn { display: inline-flex } tapan el display:none del UA
       (bug latente de v2.0: #downloadGifBtn y #hiddenCanvas quedaban
       visibles aunque tuvieran el atributo hidden). */
[hidden] {
  display: none !important;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-text);
  font-size: 15px;
  line-height: 1.6;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  padding-bottom: calc(var(--statusbar-h) + 24px);
  -webkit-font-smoothing: antialiased;
}

img,
svg,
canvas {
  display: block;
  max-width: 100%;
}

button,
input,
select {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
}

a {
  color: var(--muted);
  text-decoration: none;
}
a:hover {
  color: var(--accent);
}

::selection {
  background: rgba(157, 78, 221, 0.35);
  color: #fff;
}

/* ----- focus ----- */
:focus {
  outline: none;
}

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

/* ----- ambient grid (decorative, motion-safe only) ----- */
@media (prefers-reduced-motion: no-preference) {
  body::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background-image:
      linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
    background-size: 40px 40px;
    mask-image: linear-gradient(
      180deg,
      rgba(0, 0, 0, 0.9),
      rgba(0, 0, 0, 0.35)
    );
    -webkit-mask-image: linear-gradient(
      180deg,
      rgba(0, 0, 0, 0.9),
      rgba(0, 0, 0, 0.35)
    );
  }
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 8px;
  z-index: 200;
  padding: 8px 14px;
  background: var(--surface-2);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text);
}

.skip-link:focus-visible {
  left: 8px;
  color: var(--text);
}

/* ----- layout shell ----- */
.wrap {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 20px;
  position: relative;
  z-index: 1;
}

/* ----- header ----- */
.site-header {
  border-bottom: 1px solid var(--border);
  background: rgba(10, 10, 11, 0.85);
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 52px;
}

.logo {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: 0.01em;
  color: var(--text);
  user-select: none;
}

.logo .cursor {
  color: var(--accent);
}

@media (prefers-reduced-motion: no-preference) {
  .logo .cursor {
    animation: blink 1.1s steps(2, start) infinite;
  }
}

@keyframes blink {
  to {
    visibility: hidden;
  }
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 18px;
  font-family: var(--font-mono);
  font-size: 12px;
}

.header-nav .version {
  color: var(--faint);
}

.header-nav a {
  color: var(--muted);
}
.header-nav a:hover {
  color: var(--accent);
}

/* ----- intro ----- */
.intro {
  padding: 30px 0 22px;
}

.intro h1 {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(1.25rem, 3.2vw, 1.75rem);
  line-height: 1.25;
  letter-spacing: -0.01em;
}

.intro h1 .accent {
  color: var(--accent);
}

.intro .lead {
  max-width: 62ch;
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.9rem;
}

/* ----- drop zone ----- */
.dropzone {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  width: 100%;
  margin: 4px 0 24px;
  padding: 26px 18px;
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-md);
  background: var(--surface);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 13px;
  text-align: center;
  cursor: pointer;
  transition:
    border-color 0.15s ease,
    background-color 0.15s ease,
    color 0.15s ease;
}

.dropzone:hover,
.dropzone:focus-visible,
.dropzone.dragover {
  border-color: var(--accent);
  background: var(--accent-dim);
  color: var(--text);
}

.dropzone .prompt-line {
  display: flex;
  align-items: baseline;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
}

.dropzone .prompt-sign {
  color: var(--accent);
  font-weight: 700;
}

.dropzone .hint {
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--faint);
}

.dropzone .dz-camera {
  margin-top: 12px;
  padding: 7px 14px;
  font-size: 11.5px;
}

/* ----- workspace ----- */
.workspace[hidden] {
  display: none;
}

.panel-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 350px;
  gap: 16px;
  align-items: start;
}

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

/* ----- preview panel ----- */
.preview-head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
}

.preview-head img {
  width: 56px;
  height: 56px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface-2);
}

.preview-meta {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
  flex: 1;
}

.mode-tag {
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(157, 78, 221, 0.3);
  border-radius: 999px;
  padding: 2px 8px;
}

.micro {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ----- ascii output ----- */
.output-container {
  background: var(--bg);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  padding: 14px;
  overflow: auto;
  max-height: 68vh;
  display: flex;
  justify-content: center;
}

#asciiOutput {
  font-family: var(--font-mono);
  font-size: 5px;
  line-height: 1;
  letter-spacing: 0;
  white-space: pre;
  color: var(--text);
  display: inline-block;
}

#asciiOutput.is-gradient {
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ----- controls panel ----- */
.panel-controls {
  display: flex;
  flex-direction: column;
  padding: 4px 0;
}

.control-section {
  padding: 14px 16px 16px;
  border-bottom: 1px solid var(--border);
}

.control-section:last-child {
  border-bottom: 0;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--faint);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.section-label::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--border);
}

.field {
  margin-bottom: 12px;
}
.field:last-child {
  margin-bottom: 0;
}

.field-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 5px;
}

.field-head label,
.field-label {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.field-head output {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent);
}

.field.is-hidden {
  display: none;
}

/* selects */
select {
  width: 100%;
  appearance: none;
  -webkit-appearance: none;
  background: var(--surface-2)
    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' fill='none' stroke='%239A9AA3' stroke-width='1.5'/%3E%3C/svg%3E")
    no-repeat right 10px center;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 7px 30px 7px 10px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--text);
  transition:
    border-color 0.15s ease,
    background-color 0.15s ease;
}

select:hover {
  border-color: var(--border-strong);
}

/* ranges */
input[type="range"] {
  width: 100%;
  height: 20px;
  appearance: none;
  -webkit-appearance: none;
  background: transparent;
  accent-color: var(--accent);
  cursor: pointer;
}

input[type="range"]::-webkit-slider-runnable-track {
  height: 4px;
  border-radius: 999px;
  background: var(--surface-3);
  border: 1px solid var(--border);
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 13px;
  height: 13px;
  margin-top: -5.5px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--bg);
  box-shadow: 0 0 0 1px var(--accent);
  transition: transform 0.1s ease;
}

input[type="range"]:hover::-webkit-slider-thumb {
  transform: scale(1.15);
}

input[type="range"]::-moz-range-track {
  height: 4px;
  border-radius: 999px;
  background: var(--surface-3);
  border: 1px solid var(--border);
}

input[type="range"]::-moz-range-thumb {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--bg);
  box-shadow: 0 0 0 1px var(--accent);
}

/* ----- buttons ----- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 8px 14px;
  background: var(--surface-2);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.02em;
  white-space: nowrap;
  transition:
    border-color 0.15s ease,
    background-color 0.15s ease,
    color 0.15s ease;
}

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

.btn:active {
  transform: translateY(1px);
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
}

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-weight: 600;
}

.btn-primary:hover {
  background: #8b3fc9;
  border-color: #8b3fc9;
  color: #fff;
}

.btn-outline {
  background: transparent;
  border-color: var(--accent);
  color: var(--accent);
  font-weight: 600;
}

.btn-outline:hover {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent);
}

.btn-ghost {
  background: transparent;
  border-color: transparent;
  color: var(--muted);
  padding: 6px 10px;
}

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

.btn .icon {
  width: 13px;
  height: 13px;
  flex: none;
}

.btn.is-ok {
  border-color: var(--ok);
  color: var(--ok);
}

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

.btn-actions .btn {
  flex: 1 1 calc(50% - 4px);
}

.camera-actions {
  margin-bottom: 12px;
}

/* Interruptor pequeño (espejo de la cámara), estilo micro-etiqueta */
.toggle-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 11px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  transition:
    border-color 0.15s ease,
    background-color 0.15s ease,
    color 0.15s ease;
}

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

.toggle-chip[aria-pressed="true"] {
  color: var(--accent);
  border-color: rgba(157, 78, 221, 0.4);
  background: var(--accent-dim);
}

.toggle-chip .chip-state {
  font-weight: 700;
}

/* ----- footer ----- */
.site-footer {
  margin: 34px 0 10px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--faint);
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

    /* ----- about / FAQ (contenido SEO estático, siempre visible) ----- */
    .about {
      margin: 32px 0 8px;
    }

    .about-card {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 18px 20px 12px;
    }

    .about-card .section-label {
      margin-bottom: 14px;
    }

    .about-card p {
      max-width: 72ch;
      margin-bottom: 10px;
      color: var(--muted);
      font-size: 0.85rem;
      line-height: 1.65;
    }

    .faq {
      margin-top: 20px;
    }

    .faq-item {
      background: var(--surface-2);
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      margin-bottom: 8px;
    }

    .faq-item:last-child {
      margin-bottom: 4px;
    }

    /* El marcador nativo se reemplaza por el +/− del sistema (abajo). */
    .faq-item summary {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      padding: 10px 14px;
      font-family: var(--font-mono);
      font-size: 12.5px;
      font-weight: 500;
      color: var(--text);
      cursor: pointer;
      list-style: none;
      transition: color 0.15s ease;
    }

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

    .faq-item summary::after {
      content: "+";
      flex: none;
      color: var(--accent);
      font-size: 15px;
      font-weight: 700;
    }

    .faq-item[open] summary::after {
      content: "−";
    }

    .faq-item summary:hover {
      color: var(--accent);
    }

    .faq-item .faq-answer {
      max-width: 72ch;
      padding: 2px 14px 12px;
      color: var(--muted);
      font-size: 0.85rem;
      line-height: 1.65;
    }

    /* ----- status bar ----- */
.statusbar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 100;
  height: var(--statusbar-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 0 16px;
  background: rgba(17, 17, 19, 0.92);
  border-top: 1px solid var(--border);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.statusbar .status-left {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.statusbar .status-state {
  white-space: nowrap;
}

.statusbar .status-state::before {
  content: "estado: ";
  color: var(--faint);
}

.statusbar[data-kind="ok"] .status-state {
  color: var(--ok);
}
.statusbar[data-kind="busy"] .status-state {
  color: var(--accent);
}
.statusbar[data-kind="warn"] .status-state,
.statusbar[data-kind="error"] .status-state {
  color: var(--warn);
}

/* Cámara abierta: indicador de privacidad siempre en rojo */
.statusbar[data-kind="live"] .status-state {
  color: var(--danger);
}

.statusbar[data-kind="ok"] .status-state::before,
.statusbar[data-kind="busy"] .status-state::before,
.statusbar[data-kind="error"] .status-state::before {
  color: var(--faint);
}

/* ----- modal ----- */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 150;
  background: rgba(10, 10, 11, 0.82);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-overlay.active {
  display: flex;
}

.modal {
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  max-width: 880px;
  width: 100%;
  max-height: 88vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
}

.modal-header h2 {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
}

.modal-close {
  background: none;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1;
  padding: 4px 10px;
}

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

.modal-body {
  padding: 18px;
  overflow-y: auto;
  flex: 1;
}

.modal-body h3 {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin: 18px 0 8px;
}

.modal-body h3:first-child {
  margin-top: 0;
}

.modal-body p {
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 10px;
}

.modal-body .steps {
  padding-left: 20px;
  margin: 0 0 6px;
}

.modal-body .steps li {
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 6px;
}

.modal-body .steps li strong {
  color: var(--text);
  font-weight: 600;
}

.modal-body code {
  font-family: var(--font-mono);
  font-size: 0.8em;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 5px;
  color: var(--text);
}

.info-box {
  background: var(--accent-dim);
  border: 1px solid rgba(157, 78, 221, 0.25);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  margin-bottom: 18px;
}

.info-box p {
  margin: 0;
  color: var(--text);
  font-size: 0.85rem;
}

.code-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.code-tab {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  padding: 8px 14px;
  margin-bottom: -1px;
}

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

.code-tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.code-block {
  position: relative;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px;
  margin-bottom: 16px;
}

.code-block pre {
  font-family: var(--font-mono);
  font-size: 10.5px;
  line-height: 1.55;
  color: var(--muted);
  white-space: pre-wrap;
  word-break: break-all;
  max-height: 320px;
  overflow-y: auto;
  padding-right: 70px;
}

.code-copy-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  padding: 5px 12px;
  background: var(--surface-2);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 11px;
}

.code-copy-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.code-copy-btn.is-ok {
  border-color: var(--ok);
  color: var(--ok);
}

.code-panel {
  display: none;
}
.code-panel.active {
  display: block;
}

/* ----- responsive ----- */
@media (max-width: 960px) {
  .panel-grid {
    grid-template-columns: 1fr;
  }

  .panel-controls {
    order: 2;
    position: sticky;
    bottom: calc(var(--statusbar-h) + 10px);
    z-index: 40;
    border-color: var(--border-strong);
    box-shadow: 0 -8px 24px rgba(0, 0, 0, 0.45);
  }

  .panel-preview {
    order: 1;
  }

  .control-section {
    padding: 12px 14px 14px;
  }
}

@media (max-width: 600px) {
  .wrap {
    padding: 0 14px;
  }

  .intro {
    padding: 22px 0 16px;
  }

  .dropzone {
    padding: 20px 14px;
    font-size: 12px;
  }

  .btn-actions .btn {
    flex: 1 1 100%;
  }

  .statusbar {
    font-size: 10px;
    padding: 0 10px;
  }

  .statusbar .status-left {
    max-width: 45vw;
  }

  .output-container {
    max-height: 56vh;
    padding: 10px;
  }

  .modal-overlay {
    padding: 10px;
  }

  .code-block pre {
    font-size: 10px;
    max-height: 260px;
  }

  .about-card {
    padding: 14px 14px 10px;
  }

  .faq-item summary {
    font-size: 12px;
    padding: 9px 12px;
  }

  .faq-item .faq-answer {
    padding: 2px 12px 11px;
  }
}

/* ----- reduced motion ----- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}