/* ============================================================
   Glitchy Text Generator — style.css
   Cyber-glitch accents on a clean, readable light body.
   Mobile-first, no external fonts, no dependencies.
   ============================================================ */

:root {
  --bg: #f6f6f8;
  --surface: #ffffff;
  --ink: #141416;
  --ink-soft: #4b4b55;
  --border: #e4e4ea;
  --dark: #0a0a0c;
  --dark-2: #121216;
  --green: #00ff9d;
  --green-dim: #0fbf79;
  --magenta: #ff2fd6;
  --cyan: #00e5ff;
  --radius: 12px;
  --max: 920px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
  --font-mono: "SF Mono", SFMono-Regular, ui-monospace, Menlo, Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

.container {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 16px;
}

/* ---------- Header ---------- */
.site-header {
  background: var(--dark);
  border-bottom: 1px solid #1e1e24;
  position: sticky;
  top: 0;
  z-index: 50;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 58px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  text-decoration: none;
  color: #fff;
  font-weight: 800;
  letter-spacing: 0.02em;
  font-size: 1.02rem;
  white-space: nowrap;
}

.brand-mark {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  color: var(--green);
  text-shadow: 1.5px 0 0 var(--magenta), -1.5px 0 0 var(--cyan);
}

.brand-text .accent { color: var(--green); }

.site-nav {
  display: flex;
  gap: 16px;
}

.site-nav a {
  color: #c7c7d1;
  text-decoration: none;
  font-size: 0.86rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: color .15s ease;
}

.site-nav a:hover { color: var(--green); }

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(180deg, var(--dark) 0%, #14141a 100%);
  color: #fff;
  padding: 40px 0 34px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(0deg, rgba(255,255,255,0.03) 0 1px, transparent 1px 3px);
  pointer-events: none;
}

.hero h1 {
  margin: 0 0 12px;
  font-size: clamp(1.8rem, 6vw, 2.9rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
  font-weight: 900;
  color: #fff;
  text-shadow:
    0 0 2px rgba(255,255,255,0.25),
    2px 0 0 var(--magenta),
    -2px 0 0 var(--cyan);
}

.hero-sub {
  margin: 0 auto;
  max-width: 640px;
  font-size: 1.02rem;
  color: #c9c9d4;
}

.hero-sub strong { color: var(--green); }

/* ---------- Tool panel ---------- */
.tool-section { padding: 24px 0 8px; }

.tool-panel {
  background: var(--dark);
  color: #e8e8ee;
  border: 1px solid #232329;
  border-radius: var(--radius);
  padding: 20px 16px;
  box-shadow: 0 12px 30px rgba(0,0,0,0.25);
}

.input-label {
  display: block;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 8px;
}

#inputText {
  width: 100%;
  min-height: 84px;
  resize: vertical;
  background: #0f0f13;
  color: #fff;
  border: 1px solid #2c2c35;
  border-radius: 10px;
  padding: 12px 14px;
  font-family: var(--font-mono);
  font-size: 1.05rem;
  line-height: 1.5;
  outline: none;
  transition: border-color .15s ease, box-shadow .15s ease;
}

#inputText:focus {
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(0,255,157,0.15);
}

#inputText::placeholder { color: #6b6b78; }

/* Chaos slider */
.chaos-row { margin-top: 18px; }

.chaos-label {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #c9c9d4;
  margin-bottom: 10px;
}

.chaos-value {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  color: var(--magenta);
  text-shadow: 0 0 8px rgba(255,47,214,0.5);
}

#chaos {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 8px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--green) 0%, var(--cyan) 45%, var(--magenta) 100%);
  outline: none;
  cursor: pointer;
}

#chaos::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid var(--dark);
  box-shadow: 0 0 0 2px var(--green), 0 0 14px rgba(0,255,157,0.6);
  cursor: pointer;
}

#chaos::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid var(--dark);
  box-shadow: 0 0 0 2px var(--green), 0 0 14px rgba(0,255,157,0.6);
  cursor: pointer;
}

.chaos-scale {
  display: flex;
  justify-content: space-between;
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #7a7a88;
  margin-top: 6px;
}

.chaos-hint {
  margin: 10px 0 0;
  font-size: 0.85rem;
  color: #9a9aa8;
}

/* Variant cards */
.variants-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: 20px;
}

.variant-card {
  background: #14141a;
  border: 1px solid #26262e;
  border-radius: 10px;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.variant-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.variant-name {
  margin: 0;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--cyan);
}

.copy-btn {
  border: 1px solid #2c2c35;
  background: #1d1d25;
  color: #e8e8ee;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 7px 14px;
  border-radius: 8px;
  cursor: pointer;
  white-space: nowrap;
  transition: background .15s ease, border-color .15s ease, color .15s ease;
}

.copy-btn:hover { background: #26262f; border-color: var(--green); color: var(--green); }

.copy-btn.copied {
  background: var(--green);
  border-color: var(--green);
  color: #04140c;
}

.variant-result {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  line-height: 2;
  word-break: break-all;
  overflow-wrap: anywhere;
  color: #f3f3f7;
  background: #0c0c10;
  border-radius: 8px;
  padding: 16px 12px;
  min-height: 52px;
  white-space: pre-wrap;
}

/* ---------- Ad slots ---------- */
.ad-slot {
  width: 100%;
  min-height: 90px;
  margin: 20px auto;
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  background: repeating-linear-gradient(45deg, #fafafc 0 10px, #f2f2f6 10px 20px);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #b4b4c0;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-align: center;
}

.ad-slot::before { content: "Advertisement"; }

.ad-slot[data-ad-slot="leaderboard"] { min-height: 100px; }
.ad-slot[data-ad-slot="in-content"] { min-height: 120px; }

/* ---------- CSS preview ---------- */
.css-preview-section { padding: 8px 0 4px; }

.toggle-row {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  user-select: none;
  padding: 8px 0;
}

.toggle-row input { position: absolute; opacity: 0; width: 0; height: 0; }

.toggle-track {
  flex: 0 0 auto;
  width: 46px;
  height: 26px;
  border-radius: 999px;
  background: #c9c9d4;
  position: relative;
  transition: background .2s ease;
}

.toggle-track::after {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #fff;
  transition: transform .2s ease;
  box-shadow: 0 1px 3px rgba(0,0,0,0.3);
}

.toggle-row input:checked + .toggle-track { background: var(--green-dim); }
.toggle-row input:checked + .toggle-track::after { transform: translateX(20px); }

.toggle-text { font-size: 0.95rem; font-weight: 600; color: var(--ink-soft); }
.toggle-text small { display: block; font-weight: 400; color: #8a8a97; }

.css-previews {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 10px;
}

.css-previews.hidden { display: none; }

.preview-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
}

.preview-box {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 96px;
  padding: 16px;
  border-radius: 10px;
  background: var(--dark);
  overflow: hidden;
}

.preview-text {
  font-family: var(--font-mono);
  font-size: clamp(1.1rem, 4vw, 1.5rem);
  font-weight: 800;
  color: #fff;
  text-align: center;
  word-break: break-word;
}

/* RGB Split */
.preview-box.rgb-split .preview-text {
  text-shadow:
    2px 0 0 rgba(255,0,80,0.85),
    -2px 0 0 rgba(0,229,255,0.85);
  animation: rgb-jitter 2.6s steps(2, end) infinite;
}

@keyframes rgb-jitter {
  0%, 100% { text-shadow: 2px 0 0 rgba(255,0,80,0.85), -2px 0 0 rgba(0,229,255,0.85); }
  25% { text-shadow: 4px 0 0 rgba(255,0,80,0.85), -4px 0 0 rgba(0,229,255,0.85); }
  50% { text-shadow: -2px 0 0 rgba(255,0,80,0.85), 2px 0 0 rgba(0,229,255,0.85); }
  75% { text-shadow: 3px 0 0 rgba(255,0,80,0.85), -1px 0 0 rgba(0,229,255,0.85); }
}

/* Scanline */
.preview-box.scanline {
  position: relative;
}
.preview-box.scanline .preview-text {
  color: var(--green);
  text-shadow: 0 0 10px rgba(0,255,157,0.55);
}
.preview-box.scanline::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(0deg, rgba(0,0,0,0.55) 0 2px, transparent 2px 5px);
  animation: scan-move 3s linear infinite;
  pointer-events: none;
}
@keyframes scan-move {
  0% { background-position: 0 0; }
  100% { background-position: 0 100px; }
}

/* Flicker */
.preview-box.flicker .preview-text {
  color: #fff;
  text-shadow: 0 0 12px rgba(255,47,214,0.6);
  animation: flicker 2.2s linear infinite;
}
@keyframes flicker {
  0%, 100% { opacity: 1; }
  8% { opacity: 0.25; }
  10% { opacity: 1; }
  38% { opacity: 1; }
  40% { opacity: 0.1; }
  42% { opacity: 1; }
  70% { opacity: 1; }
  72% { opacity: 0.4; }
  74% { opacity: 1; }
}

.preview-note {
  margin: 10px 0 0;
  font-size: 0.82rem;
  color: var(--ink-soft);
}

/* ---------- Article content ---------- */
.content {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 20px;
  margin-top: 8px;
  margin-bottom: 40px;
}

.content section { margin-bottom: 34px; }
.content section:last-child { margin-bottom: 0; }

.content h2 {
  font-size: 1.5rem;
  line-height: 1.25;
  margin: 0 0 14px;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.content h3 {
  font-size: 1.05rem;
  margin: 22px 0 6px;
  color: var(--ink);
}

.content p { margin: 0 0 14px; color: #26262c; }
.content p:last-child { margin-bottom: 0; }

.content strong { color: #000; }

.steps {
  margin: 0;
  padding-left: 22px;
}
.steps li { margin-bottom: 10px; }

.content ul { margin: 0 0 14px; padding-left: 22px; }
.content li { margin-bottom: 8px; }

.related-tools {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fbfbfd;
  padding: 18px;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--dark);
  color: #c7c7d1;
  padding: 34px 0 28px;
  text-align: center;
}

.footer-brand {
  margin: 0 0 8px;
  font-weight: 800;
  color: #fff;
  font-size: 1.05rem;
}

.footer-note {
  margin: 0 auto 12px;
  max-width: 520px;
  font-size: 0.88rem;
  color: #9a9aa8;
}

.footer-copy {
  margin: 0;
  font-size: 0.8rem;
  color: #6b6b78;
}

/* ---------- Toast ---------- */
.toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%) translateY(20px);
  background: #000;
  color: var(--green);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  padding: 10px 18px;
  border-radius: 10px;
  border: 1px solid rgba(0,255,157,0.4);
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s ease, transform .2s ease;
  z-index: 100;
  max-width: 90vw;
  text-align: center;
}

.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---------- Responsive ---------- */
@media (min-width: 560px) {
  .variants-grid { grid-template-columns: 1fr 1fr; }
  .css-previews { grid-template-columns: 1fr 1fr 1fr; }
  .tool-panel { padding: 26px 24px; }
  .content { padding: 34px 30px; }
}

@media (min-width: 860px) {
  .variants-grid { grid-template-columns: repeat(2, 1fr); }
}

/* Respect users who prefer reduced motion */
@media (prefers-reduced-motion: reduce) {
  .preview-box.rgb-split .preview-text,
  .preview-box.scanline::after,
  .preview-box.flicker .preview-text {
    animation: none !important;
  }
  html { scroll-behavior: auto; }
}