/* style.css — Textify visual system
   Design: terminal-quiet chrome around the art. The product paints photos
   with a character density ramp (@ # S % ? * + ; : , .), so the interface
   is built from the same material: monospace display type, hairline
   frames, and one memorable element — the density-ramp strip on the
   drop zone. Owner copy and behavior are untouched; this file is
   presentation only. */

/* Border-box everywhere so padding never inflates control widths */
*,
*::before,
*::after {
  box-sizing: border-box;
}

/* Root Variables for Theming */
:root {
  --neon-pink: #ff2e88;
  --neon-blue: #00fff9;
  --neon-purple: #bd00ff;
  --dark-bg: #0a0d12;
  --darker-bg: #07090d;
  --cyber-text: #d3d3d3;

  /* Refined tokens (brand hue preserved) */
  --bg: #0a0d12;
  --bg-field: #0d1118;
  --bg-panel: rgba(16, 20, 28, 0.72);
  --line: #222a37;
  --line-strong: #354154;
  --line-stage: #4a5872;
  --ink: #e6ebf4;
  --ink-dim: #97a1b3;
  --brand: var(--neon-blue);
  --accent: var(--neon-pink);
  --violet: var(--neon-purple);

  --mono: ui-monospace, "SF Mono", "Cascadia Code", "JetBrains Mono",
    Menlo, Consolas, "Liberation Mono", monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue",
    Arial, sans-serif;

  /* Type scale (1.25) */
  --t-micro: 0.75rem;
  --t-small: 0.875rem;
  --t-base: 1rem;
  --t-lg: 1.125rem;
}

html {
  background-color: var(--bg);
}

/* Body Styling */
body {
  font-family: var(--sans);
  text-align: center;
  margin: 0 auto;
  padding: clamp(16px, 3vw, 40px);
  max-width: 1120px;
  background-color: transparent;
  background-image: radial-gradient(
    80% 42% at 50% -8%,
    rgba(0, 255, 249, 0.07),
    transparent 62%
  );
  color: var(--ink);
  font-size: var(--t-base);
  line-height: 1.55;
}

::selection {
  background: rgba(0, 255, 249, 0.25);
}

/* Header Styling — the headline is the brand anchor: monospace with a
   single soft phosphor glow instead of stacked neon shadows */
h1 {
  font-family: var(--mono);
  font-size: clamp(1.6rem, 4.2vw, 2.5rem);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: 0;
  text-transform: none;
  color: var(--brand);
  text-shadow: 0 0 24px rgba(0, 255, 249, 0.35);
  margin: 0;
  min-width: 0;
}

h3 {
  font-family: var(--mono);
  font-size: var(--t-small);
  font-weight: 600;
  letter-spacing: 0;
  color: var(--ink);
  margin: 0 0 14px;
}

/* Header Container: stacked on phones, one row on wide screens */
#header {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  text-align: center;
  margin-bottom: 18px;
}

#languageContainer {
  margin-inline-start: auto;
}

@media (min-width: 760px) {
  #header {
    flex-direction: row;
    align-items: center;
    gap: 24px;
  }
}

/* Processing Note Styling */
body > p {
  max-width: 62ch;
  margin: 0 auto 8px;
}

#processingNote {
  font-size: var(--t-small);
  color: var(--ink-dim);
  font-style: normal;
  margin-top: 0;
  margin-bottom: 20px;
}

/* Drag & Drop Area — the hero and the one memorable element:
   a strip of the app's own grayscale density ramp */
#dragDropArea {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 160px;
  margin: 28px 0 16px;
  padding: 48px 24px 40px;
  border: 1px dashed rgba(0, 255, 249, 0.45);
  border-radius: 14px;
  background-image: radial-gradient(
    120% 150% at 50% 0%,
    rgba(0, 255, 249, 0.07),
    rgba(189, 0, 255, 0.05) 55%,
    transparent 80%
  );
  font-family: var(--sans);
  font-size: var(--t-base);
  color: var(--ink);
  cursor: pointer;
  transition: border-color 0.2s ease, background-color 0.2s ease;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

/* The material of the product: the density ramp used to paint pixels */
#dragDropArea::before {
  content: "@#S%?*+;:,.";
  position: absolute;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.5em;
  padding-inline-start: 0.5em;
  white-space: nowrap;
  background-image: linear-gradient(
    90deg,
    var(--brand),
    var(--ink-dim) 35%,
    var(--accent) 68%,
    var(--violet)
  );
  background-size: 200% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

@keyframes ramp-sheen {
  from {
    background-position: 0% 50%;
  }
  to {
    background-position: 100% 50%;
  }
}

#dragDropArea strong {
  color: var(--brand);
  font-weight: 600;
}

#dragDropArea:hover {
  border-color: var(--brand);
}

#dragDropArea.drag-over {
  border-style: solid;
  border-color: var(--brand);
  background-color: rgba(0, 255, 249, 0.08);
}

/* Buttons: monospace tool controls, sentence case */
button {
  font-family: var(--mono);
  font-size: var(--t-small);
  font-weight: 600;
  letter-spacing: 0;
  text-transform: none;
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  padding: 0 18px;
  min-height: 44px;
  cursor: pointer;
  transition: border-color 0.15s ease, background-color 0.15s ease,
    color 0.15s ease;
}

button:hover {
  background: rgba(0, 255, 249, 0.08);
  border-color: var(--brand);
  color: var(--brand);
}

button:active {
  transform: none;
}

/* Primary actions */
#chooseImage,
#paypalDonateBtn {
  background: var(--brand);
  border-color: var(--brand);
  color: var(--bg);
}

#chooseImage:hover,
#paypalDonateBtn:hover {
  background: #66fffa;
  border-color: #66fffa;
  color: var(--bg);
}

#paypalDonateBtn {
  margin-top: 6px;
}

/* Range Inputs: 44px hit area over a slim track */
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  background: transparent;
  border: none;
  height: 44px;
  margin: 0;
  flex: 1 1 100%;
  width: 100%;
  cursor: pointer;
}

input[type="range"]::-webkit-slider-runnable-track {
  height: 4px;
  background: var(--line-strong);
  border: none;
  border-radius: 2px;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  background: var(--accent);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  margin-top: -7px;
  transition: transform 0.15s ease;
}

input[type="range"]:hover::-webkit-slider-thumb {
  transform: scale(1.1);
}

input[type="range"]::-moz-range-track {
  height: 4px;
  background: var(--line-strong);
  border: none;
  border-radius: 2px;
}

input[type="range"]::-moz-range-thumb {
  width: 18px;
  height: 18px;
  background: var(--accent);
  border: none;
  border-radius: 50%;
  cursor: pointer;
}

/* Selects & Textfields */
select,
input[type="text"],
input[type="color"] {
  font-family: var(--mono);
  font-size: var(--t-small);
  background: var(--bg-field);
  color: var(--ink);
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  padding: 5px 12px;
  margin: 5px;
  min-height: 44px;
  min-width: 44px;
  max-width: 100%;
  transition: border-color 0.15s ease;
}

select:hover,
input[type="text"]:hover,
input[type="color"]:hover {
  border-color: var(--brand);
}

/* ASCII Output Styling */
#output {
  display: block;
  width: fit-content;
  white-space: pre;
  font-size: 12px;
  line-height: 12px;
  margin: 24px auto;
  border: 1px solid var(--line-stage);
  border-radius: 10px;
  overflow: auto;
  max-width: 90%;
  max-height: 80vh;
  position: relative;
  background-color: var(--darker-bg);
  padding: 20px;

  /* Monospaced Font for Proper Alignment */
  font-family: var(--mono);

  /* Text Direction */
  direction: ltr;
  scrollbar-width: thin;
  scrollbar-color: var(--line-strong) transparent;
}

body[dir="rtl"] #output {
  text-align: right;
}

/* Canvas Styling */
#canvas {
  display: block;
  margin: 24px auto;
  max-width: 90%;
  border: 1px solid var(--line-stage);
  border-radius: 10px;

  /* Ensure canvas operates in LTR */
  direction: ltr;
}

/* Loading Overlay Styling */
#loadingOverlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(7, 9, 13, 0.86);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 18px;
  transition: opacity 0.3s ease;
  opacity: 0;
  pointer-events: none;
  z-index: 9999;
  color: var(--ink);
  font-family: var(--mono);
  font-size: var(--t-lg);
  letter-spacing: 0;
  text-transform: none;
}

#loadingOverlay.active {
  opacity: 1;
  pointer-events: all;
}

#loadingOverlay::after {
  content: "";
  display: block;
  width: 44px;
  height: 44px;
  border: 3px solid rgba(0, 255, 249, 0.25);
  border-top-color: var(--brand);
  border-radius: 50%;
}

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

/* Toast Notifications Styling */
.toast {
  position: fixed;
  bottom: 16px;
  inset-inline-end: 16px;
  padding: 12px 18px;
  background: #10141c;
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  color: var(--ink);
  font-family: var(--mono);
  font-size: var(--t-small);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.45);
}

.toast-warning {
  border-color: #fbbf24;
  color: #fbbf24;
}

.toast-success {
  border-color: #34d399;
  color: #34d399;
}

.toast-error {
  border-color: #f87171;
  color: #f87171;
}

.toast-info {
  border-color: var(--brand);
  color: var(--brand);
}

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

/* Tooltip Styling */
.tooltip {
  position: relative;
  display: inline-block;
  cursor: help;
}

.tooltip::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%;
  /* Anchor to the inline-end edge and wrap: a nowrap, centered tooltip
     near the right edge caused 89px/124px document overflow at 390/320. */
  inset-inline-start: auto;
  inset-inline-end: 0;
  transform: none;
  background: #10141c;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  color: var(--ink);
  padding: 6px 10px;
  font-family: var(--sans);
  font-size: var(--t-micro);
  width: max-content;
  max-width: min(200px, 80vw);
  white-space: normal;
  opacity: 0;
  transition: opacity 0.2s;
  pointer-events: none;
}

.tooltip:hover::after {
  opacity: 1;
}

/* File Preview Styling */
.file-preview {
  position: relative;
  padding: 10px 56px 10px 14px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  font-family: var(--mono);
  font-size: var(--t-micro);
  color: var(--ink);
  text-align: start;
}

.remove-file {
  position: absolute;
  top: 0;
  inset-inline-end: 0;
  width: 44px;
  height: 44px;
  background: transparent;
  border: none;
  color: var(--accent);
  cursor: pointer;
  font-size: 1.25rem;
  line-height: 1;
}

.remove-file:hover {
  background: rgba(255, 46, 136, 0.12);
  border: none;
  color: var(--accent);
}

/* Empty placeholders stay out of the layout until real content exists */
#output:empty,
#canvas:not([width]) {
  display: none;
}

/* Inline credit link keeps a 44px touch target without breaking the line */
#processingNote a {
  position: relative;
}

#processingNote a::after {
  content: "";
  position: absolute;
  inset: -14px -8px;
}

/* Visible keyboard focus on every interactive control */
:where(button, select, input, a[href], [tabindex]):focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 2px;
}

/* Screen Reader Only Class */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* Highlighted Link Styling */
#output .highlighted-link {
  color: var(--brand) !important;
  text-decoration: none !important;
  font-weight: bold !important;
  text-shadow: 0 0 8px rgba(0, 255, 249, 0.5) !important;
  transition: color 0.3s ease !important;
}

#output .highlighted-link:hover {
  color: var(--bg) !important;
  background-color: var(--brand) !important;
  text-shadow: none !important;
}

/* Controls Container: one panel, spec-sheet groups */
#controls {
  margin: 28px 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(260px, 100%), 1fr));
  gap: 28px 32px;
  padding: clamp(18px, 3vw, 32px);
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  text-align: start;
}

/* Control Group Styling */
.control-group {
  background: none;
  border: none;
  border-top: 1px solid var(--line);
  border-radius: 0;
  box-shadow: none;
  padding: 18px 0 0;
  min-width: min(250px, 100%);
  max-width: 100%;
  margin: 0;
}

.sub-control {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  margin-block: 12px;
}

.sub-control label {
  flex: 0 1 auto;
}

label {
  font-size: var(--t-small);
  color: var(--ink-dim);
}

span[id$="Value"] {
  font-family: var(--mono);
  color: var(--brand);
}

#binaryOptions {
  margin-top: 10px;
}

#binaryOptions label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  margin-inline-end: 12px;
}

#shareLink {
  flex: 1 1 160px;
}

/* Color Mode row: swatches and select share one baseline */
#colorModeGroup label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
}

#colorModeGroup input[type="color"],
#colorModeInfo {
  vertical-align: middle;
}

/* Donation Section */
#donationSection {
  text-align: center;
  margin-top: 28px;
  padding: 28px 20px;
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: 14px;
}

#donationSection p {
  color: var(--ink-dim);
}

/* Motion: decorative animation only, and only when allowed */
@media (prefers-reduced-motion: no-preference) {
  #dragDropArea::before {
    animation: ramp-sheen 6s linear infinite;
  }

  #loadingOverlay::after {
    animation: spinner 1s linear infinite;
  }

  .toast {
    animation: toast-in 0.25s ease-out;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition: none !important;
  }
}

/* Responsive Design */
@media (max-width: 600px) {
  #output {
    font-size: 3px;
    line-height: 3px;
  }

  #controls {
    gap: 20px;
  }
}