/* ==========================================================================
   600IQ Twitch Emote Resizer — Styles
   Matches site design system (ghostface-voice-changer pattern)
   ========================================================================== */

:root {
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f1f5f9;
  --card-bg: #ffffff;
  --card-border: #e2e8f0;

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;

  --accent-primary: #9146ff;
  --accent-hover: #7c2ff0;
  --accent-light: #f3eeff;
  --accent-border: #c4a8ff;

  --success-color: #10b981;

  --input-bg: #ffffff;
  --input-border: #cbd5e1;

  --shadow-sm: 0 1px 2px 0 rgba(0,0,0,.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,.1), 0 2px 4px -1px rgba(0,0,0,.06);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

[data-theme="dark"] {
  --bg-primary: #0b0f19;
  --bg-secondary: #131b2e;
  --bg-tertiary: #1e293b;
  --card-bg: #131b2e;
  --card-border: #2e3a52;

  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #64748b;

  --accent-primary: #b580ff;
  --accent-hover: #c99fff;
  --accent-light: #1e1533;
  --accent-border: #5a3a9a;

  --input-bg: #1e293b;
  --input-border: #334155;

  --shadow-sm: 0 1px 2px 0 rgba(0,0,0,.3);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,.4);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent-primary); text-decoration: none; transition: color var(--transition-fast); }
a:hover { text-decoration: underline; }

/* --- Header --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--card-border);
  transition: background var(--transition-normal), border-color var(--transition-normal);
}

[data-theme="dark"] .site-header { background: rgba(19,27,46,.85); }

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: .85rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -.02em;
  text-decoration: none;
}
.brand-logo:hover { text-decoration: none; }

.header-actions { display: flex; align-items: center; gap: 1.25rem; }

.nav-link { color: var(--text-secondary); font-weight: 500; font-size: .95rem; }
.nav-link:hover { color: var(--accent-primary); text-decoration: none; }

.theme-toggle-btn {
  background: var(--bg-tertiary);
  border: 1px solid var(--card-border);
  color: var(--text-primary);
  width: 40px; height: 40px;
  border-radius: var(--radius-full);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  font-size: 1.1rem;
  transition: all var(--transition-fast);
}
.theme-toggle-btn:hover { background: var(--card-border); transform: scale(1.05); }

/* --- Main --- */
.main-wrapper {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
  width: 100%;
  flex: 1;
}

/* --- Hero --- */
.hero-section { text-align: center; padding: 2.5rem 0 2rem; }

.hero-title {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -.03em;
  line-height: 1.2;
  color: var(--text-primary);
}
.hero-title span { color: var(--accent-primary); }

.hero-subtitle {
  margin: .75rem auto 0;
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 640px;
  line-height: 1.6;
}

/* --- Card --- */
.calc-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
  max-width: 680px;
  margin: 0 auto 3rem;
  transition: box-shadow var(--transition-normal);
}
.calc-card:hover { box-shadow: var(--shadow-md); }

.tool-section {
  padding: 1rem 0;
  border-bottom: 1px solid var(--card-border);
}
.tool-section:last-child { border-bottom: none; padding-bottom: 0; }
.tool-section:first-child { padding-top: 0; }

/* --- Upload Zone --- */
.upload-zone {
  border: 2px dashed var(--input-border);
  border-radius: var(--radius-md);
  padding: 2.5rem 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}
.upload-zone:hover, .upload-zone.dragover {
  border-color: var(--accent-primary);
  background: var(--accent-light);
}

.upload-icon { font-size: 2.25rem; display: block; margin-bottom: .5rem; }
.upload-text { font-size: 1rem; font-weight: 600; color: var(--text-primary); margin-bottom: .25rem; }
.upload-hint { font-size: .82rem; color: var(--text-muted); }

.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap;
}

/* --- Background Toggle --- */
.bg-toggle-row {
  display: flex;
  align-items: center;
  gap: .75rem;
  flex-wrap: wrap;
  margin-bottom: 1.25rem;
}

.bg-toggle-label { font-size: .82rem; color: var(--text-muted); font-weight: 500; white-space: nowrap; }

.bg-toggle-group { display: flex; gap: .35rem; }

.bg-btn {
  width: 32px; height: 32px;
  border-radius: var(--radius-sm);
  border: 2px solid var(--card-border);
  background: var(--bg-tertiary);
  cursor: pointer;
  font-size: .9rem;
  display: flex; align-items: center; justify-content: center;
  transition: border-color var(--transition-fast), transform var(--transition-fast);
}
.bg-btn:hover { border-color: var(--accent-primary); transform: scale(1.1); }
.bg-btn.active { border-color: var(--accent-primary); box-shadow: 0 0 0 2px var(--accent-light); }

/* --- Sizes Grid --- */
.sizes-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.size-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .6rem;
  padding: 1rem .75rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast);
}
.size-card:hover { border-color: var(--accent-border); }

/* Preview wrapper — fixed display size regardless of canvas px */
.size-preview-wrap {
  width: 112px;
  height: 112px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  flex-shrink: 0;
  transition: background var(--transition-fast);
}

/* Background variants */
.size-preview-wrap.bg-checker {
  background-image:
    linear-gradient(45deg, #ccc 25%, transparent 25%),
    linear-gradient(-45deg, #ccc 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #ccc 75%),
    linear-gradient(-45deg, transparent 75%, #ccc 75%);
  background-size: 16px 16px;
  background-position: 0 0, 0 8px, 8px -8px, -8px 0px;
  background-color: #fff;
}
[data-theme="dark"] .size-preview-wrap.bg-checker { background-color: #1e293b; }

.size-preview-wrap.bg-dark { background: #18181b; }
.size-preview-wrap.bg-light { background: #ffffff; border: 1px solid var(--card-border); }
.size-preview-wrap.bg-purple { background: #9146ff; }

/* Canvas inside wrapper — scale up small canvases visually */
.size-preview-wrap canvas {
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

/* Scale canvases to fill the 112px wrapper */
#canvas-112 { width: 112px; height: 112px; }
#canvas-56  { width: 112px; height: 112px; }
#canvas-28  { width: 112px; height: 112px; }

.size-info {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .1rem;
}
.size-label { font-size: .8rem; font-weight: 700; color: var(--text-primary); }
.size-dims { font-size: .75rem; color: var(--text-muted); font-variant-numeric: tabular-nums; }

/* --- Actions Row --- */
.actions-row {
  display: flex;
  gap: .75rem;
  flex-wrap: wrap;
  align-items: center;
}

.zip-note {
  font-size: .78rem;
  color: var(--text-muted);
  margin-top: .5rem;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .65rem 1.25rem;
  font-size: .9rem;
  font-weight: 600;
  font-family: var(--font-sans);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
}
.btn:disabled { opacity: .5; cursor: not-allowed; }

.btn-primary { background: var(--accent-primary); color: #fff; }
.btn-primary:hover:not(:disabled) { background: var(--accent-hover); transform: translateY(-1px); box-shadow: var(--shadow-md); }

.btn-secondary { background: var(--bg-tertiary); color: var(--text-primary); border: 1px solid var(--card-border); }
.btn-secondary:hover:not(:disabled) { border-color: var(--accent-primary); transform: translateY(-1px); }

.btn-ghost { background: transparent; color: var(--text-secondary); border: 1px solid var(--card-border); }
.btn-ghost:hover:not(:disabled) { color: var(--text-primary); border-color: var(--text-secondary); }

.btn-sm { padding: .4rem .75rem; font-size: .8rem; width: 100%; justify-content: center; }

/* --- Toast --- */
.toast-msg {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--text-primary);
  color: var(--bg-primary);
  padding: .75rem 1.5rem;
  border-radius: var(--radius-full);
  font-size: .9rem;
  font-weight: 500;
  box-shadow: var(--shadow-md);
  opacity: 0;
  pointer-events: none;
  transition: transform .3s ease, opacity .3s ease;
  z-index: 200;
}
.toast-msg.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* --- Related Tools --- */
.related-tools-section {
  padding: 2.5rem 0 3rem;
  border-top: 1px solid var(--card-border);
}
.related-tools-section h2 {
  font-size: 1.4rem; font-weight: 700; margin-bottom: 1.25rem; color: var(--text-primary);
}
.related-tools-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
.related-tool-card {
  display: flex; flex-direction: column; gap: .5rem;
  padding: 1.25rem;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  text-decoration: none;
  color: var(--text-primary);
  transition: border-color .2s, box-shadow .2s, transform .2s;
}
.related-tool-card:hover {
  border-color: var(--accent-primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
  text-decoration: none;
}
.related-tool-icon { font-size: 1.75rem; line-height: 1; }
.related-tool-title { font-size: 1rem; font-weight: 600; }
.related-tool-desc { font-size: .84rem; color: var(--text-muted); line-height: 1.5; }

/* --- Footer --- */
.site-footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--card-border);
  padding: 3rem 0 0;
  margin-top: auto;
}
.container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }
.footer-container {
  display: flex; justify-content: space-between; align-items: flex-start;
  gap: 2rem; flex-wrap: wrap;
}
.footer-brand { max-width: 280px; }
.logo-badge { display: inline-flex; align-items: baseline; gap: 1px; font-weight: 800; font-size: 1.3rem; }
.logo-number { color: var(--accent-primary); }
.logo-letters { color: var(--text-primary); }
.footer-tagline { font-size: .9rem; color: var(--text-muted); margin-top: .5rem; line-height: 1.5; }
.footer-links-group { display: flex; gap: 3rem; }
.footer-heading { font-size: .8rem; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; color: var(--text-primary); margin-bottom: .75rem; }
.footer-links { list-style: none; }
.footer-links li { margin-bottom: .4rem; }
.footer-links a { color: var(--text-secondary); font-size: .9rem; }
.footer-links a:hover { color: var(--accent-primary); }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  padding: 1.25rem 1.5rem; margin-top: 2rem; border-top: 1px solid var(--card-border);
}
.copyright { font-size: .85rem; color: var(--text-muted); }
.footer-status { display: flex; align-items: center; gap: .4rem; font-size: .8rem; color: var(--text-muted); }
.status-indicator { width: 7px; height: 7px; border-radius: 50%; background: var(--success-color); }

/* --- Responsive --- */
@media (max-width: 640px) {
  .hero-section { padding: 1.5rem 0 1.25rem; }
  .calc-card { padding: 1.25rem; }

  .sizes-grid { grid-template-columns: 1fr; gap: .75rem; }

  .size-card { flex-direction: row; padding: .75rem 1rem; gap: 1rem; align-items: center; }
  .size-preview-wrap { width: 64px; height: 64px; flex-shrink: 0; }
  #canvas-112, #canvas-56, #canvas-28 { width: 64px; height: 64px; }
  .size-info { flex: 1; align-items: flex-start; }
  .btn-sm { width: auto; }

  .actions-row { flex-direction: column; }
  .actions-row .btn { width: 100%; justify-content: center; }

  .related-tools-grid { grid-template-columns: 1fr; }

  .footer-container { flex-direction: column; gap: 1.75rem; margin-bottom: 1.75rem; }
  .footer-brand { max-width: 100%; }
  .footer-links-group { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; width: 100%; }
  .footer-bottom { flex-direction: column; align-items: center; text-align: center; gap: .75rem; }
}

@media (max-width: 480px) {
  .main-wrapper { padding: 1rem 1rem 3rem; }
  .header-container { padding: .75rem 1rem; }
  .bg-toggle-row { gap: .5rem; }
}

/* ==========================================================================
   SEO Content & FAQ Styles — Twitch Emote Resizer
   ========================================================================== */

/* --- Content Section Wrapper --- */
.content-section {
  max-width: 800px;
  margin: 0 auto;
  padding-top: 1rem;
}

/* --- Section divider between tool card and content --- */
.content-section::before {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-primary), var(--accent-border));
  border-radius: var(--radius-full);
  margin: 0 auto 2.5rem;
}

/* --- Content Block --- */
.content-block {
  margin-bottom: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid var(--card-border);
}
.content-block:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.content-block h2 {
  font-size: clamp(1.2rem, 2.5vw, 1.5rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.3;
  color: var(--text-primary);
  margin-bottom: 1rem;
  position: relative;
  padding-left: 1rem;
}
.content-block h2::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 70%;
  background: linear-gradient(180deg, var(--accent-primary), var(--accent-border));
  border-radius: var(--radius-full);
}

.content-block p {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}
.content-block p:last-child { margin-bottom: 0; }

.content-block strong { color: var(--text-primary); font-weight: 600; }

.content-block ul,
.content-block ol {
  padding-left: 0;
  margin: 1rem 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.content-block ul li,
.content-block ol li {
  font-size: 0.97rem;
  line-height: 1.7;
  color: var(--text-secondary);
  padding-left: 1.6rem;
  position: relative;
}

.content-block ul li::before {
  content: '✦';
  position: absolute;
  left: 0;
  top: 0.1em;
  font-size: 0.6rem;
  color: var(--accent-primary);
  line-height: 1.8;
}

.content-block ol {
  counter-reset: ol-counter;
}
.content-block ol li {
  counter-increment: ol-counter;
}
.content-block ol li::before {
  content: counter(ol-counter);
  position: absolute;
  left: 0;
  top: 0.15em;
  width: 1.1rem;
  height: 1.1rem;
  background: var(--accent-primary);
  color: #fff;
  font-size: 0.65rem;
  font-weight: 800;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

/* --- How-To Grid --- */
.how-to-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 1rem;
  margin: 1.5rem 0 0.5rem;
}

.step-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 1.25rem 1rem;
  position: relative;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
}
.step-card:hover {
  border-color: var(--accent-border);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-hover));
  color: #fff;
  border-radius: 50%;
  font-weight: 800;
  font-size: 0.85rem;
  margin-bottom: 0.75rem;
  box-shadow: 0 2px 8px rgba(145, 70, 255, 0.35);
}

.step-card h3 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.4rem;
}

.step-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-bottom: 0 !important;
}

/* --- Details Table --- */
.table-responsive {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: var(--radius-md);
  border: 1px solid var(--card-border);
  margin: 1.25rem 0;
}

.details-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.details-table thead {
  background: linear-gradient(135deg, var(--accent-light), var(--bg-tertiary));
}

.details-table th {
  padding: 0.8rem 1rem;
  text-align: left;
  font-weight: 700;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent-primary);
  border-bottom: 2px solid var(--accent-border);
  white-space: nowrap;
}

.details-table td {
  padding: 0.7rem 1rem;
  border-bottom: 1px solid var(--card-border);
  color: var(--text-secondary);
  line-height: 1.5;
}

.details-table tbody tr:last-child td {
  border-bottom: none;
}

.details-table tbody tr {
  transition: background var(--transition-fast);
}
.details-table tbody tr:hover {
  background: var(--accent-light);
}

.details-table td strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* --- FAQ Section --- */
#faq h2 {
  margin-bottom: 1.5rem;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.faq-item {
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--card-bg);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

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

.faq-item.open {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px var(--accent-light);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  font-size: 0.95rem;
  font-weight: 600;
  font-family: var(--font-sans);
  color: var(--text-primary);
  background: transparent;
  border: none;
  cursor: pointer;
  text-align: left;
  gap: 1rem;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.faq-question:hover {
  background: var(--bg-tertiary);
}

.faq-item.open .faq-question {
  color: var(--accent-primary);
  background: var(--accent-light);
}

.faq-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--bg-tertiary);
  border: 1px solid var(--card-border);
  font-size: 0.6rem;
  color: var(--text-muted);
  flex-shrink: 0;
  transition: transform var(--transition-normal), background var(--transition-fast), border-color var(--transition-fast);
}

.faq-item.open .faq-icon {
  transform: rotate(180deg);
  background: var(--accent-primary);
  border-color: var(--accent-primary);
  color: #fff;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding var(--transition-normal);
  padding: 0 1.25rem;
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--text-secondary);
}

.faq-item.open .faq-answer {
  max-height: 600px;
  padding: 0 1.25rem 1.1rem;
}

/* --- Responsive --- */
@media (max-width: 640px) {
  .content-section { padding-top: 0.5rem; }
  .content-block { margin-bottom: 2rem; padding-bottom: 2rem; }
  .content-block h2 { font-size: 1.15rem; }
  .how-to-grid { grid-template-columns: 1fr 1fr; }
  .details-table th, .details-table td { padding: 0.55rem 0.7rem; font-size: 0.82rem; }
  .faq-question { font-size: 0.88rem; padding: 0.85rem 1rem; }
  .faq-answer { font-size: 0.88rem; }
  .faq-item.open .faq-answer { padding: 0 1rem 0.9rem; }
}

@media (max-width: 400px) {
  .how-to-grid { grid-template-columns: 1fr; }
}