@import url('https://fonts.googleapis.com/css2?family=Space+Mono:wght@400;700&family=IBM+Plex+Sans:wght@300;400;500;600;700&display=swap');

:root {
  --font-display: 'Space Mono', monospace;
  --font-body: 'IBM Plex Sans', sans-serif;
  --bg: #0a0a0a;
  --bg-card: #141414;
  --bg-hover: #1a1a1a;
  --text: #e8e8e8;
  --text-muted: #888;
  --border: #222;
  --radius: 6px;
  --accent: #FB923C;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: var(--font-body); background: var(--bg); color: var(--text); line-height: 1.6; min-height: 100vh; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }

header { border-bottom: 1px solid var(--border); padding: 16px 0; position: sticky; top: 0; background: var(--bg); z-index: 100; }
header .container { display: flex; align-items: center; justify-content: space-between; }
.logo { font-family: var(--font-display); font-size: 1.4rem; font-weight: 700; color: var(--accent); }
nav { display: flex; gap: 24px; }
nav a { color: var(--text-muted); font-size: 0.9rem; font-weight: 500; }
nav a:hover { color: var(--text); text-decoration: none; }

.hero { padding: 50px 0 30px; text-align: center; }
.hero h1 { font-family: var(--font-display); font-size: 2.2rem; margin-bottom: 12px; }
.hero h1 span { color: var(--accent); }
.hero p { color: var(--text-muted); font-size: 1.1rem; max-width: 600px; margin: 0 auto; }

/* Drop Zone */
.drop-zone {
  border: 2px dashed var(--border); border-radius: var(--radius); padding: 60px 20px;
  text-align: center; margin: 20px 0; cursor: pointer; transition: all 0.2s;
}
.drop-zone:hover, .drop-zone.drag-over { border-color: var(--accent); background: rgba(251,146,60,0.05); }
.drop-zone p { color: var(--text-muted); margin-bottom: 8px; }
.drop-zone .hint { font-size: 0.85rem; color: var(--text-muted); }
.drop-zone input[type="file"] { display: none; }

/* Controls */
.compress-controls {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; margin: 20px 0; display: none;
}
.compress-controls.visible { display: block; }
.control-row { display: flex; gap: 20px; flex-wrap: wrap; align-items: flex-end; margin-bottom: 16px; }
.control-group { display: flex; flex-direction: column; gap: 6px; }
.control-group label { font-size: 0.8rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; font-weight: 600; }
.control-group select, .control-group input[type="number"] {
  background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius);
  color: var(--text); padding: 8px 12px; font-family: var(--font-body); font-size: 0.9rem;
}
.control-group select:focus, .control-group input:focus { outline: none; border-color: var(--accent); }
.slider-group { flex: 1; min-width: 200px; }
.slider-group input[type="range"] {
  width: 100%; appearance: none; height: 6px; background: var(--border); border-radius: 3px; outline: none;
}
.slider-group input[type="range"]::-webkit-slider-thumb {
  appearance: none; width: 18px; height: 18px; background: var(--accent); border-radius: 50%; cursor: pointer;
}
.slider-value { font-family: var(--font-display); font-size: 0.9rem; color: var(--accent); }
.resize-group { display: flex; gap: 12px; align-items: flex-end; }
.resize-group input[type="number"] { width: 100px; }

.btn {
  background: var(--accent); color: var(--bg); border: none; border-radius: var(--radius);
  padding: 10px 24px; font-family: var(--font-body); font-weight: 600; font-size: 0.9rem;
  cursor: pointer; transition: opacity 0.2s;
}
.btn:hover { opacity: 0.85; }
.btn-secondary { background: transparent; color: var(--accent); border: 1px solid var(--accent); }
.btn-secondary:hover { background: rgba(251,146,60,0.08); opacity: 1; }

/* File Info */
.file-info {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 20px; margin: 20px 0; display: none;
}
.file-info.visible { display: block; }
.info-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 16px; }
.info-item label { display: block; font-size: 0.75rem; color: var(--text-muted); text-transform: uppercase; margin-bottom: 2px; }
.info-item span { font-family: var(--font-display); font-weight: 700; }

/* Comparison */
.comparison {
  position: relative; margin: 20px 0; border-radius: var(--radius); overflow: hidden;
  display: none; border: 1px solid var(--border);
}
.comparison.visible { display: block; }
.comparison canvas { display: block; width: 100%; }
.comp-container { position: relative; }
.comp-original, .comp-compressed { position: absolute; top: 0; left: 0; }
.comp-original { z-index: 1; }
.comp-compressed { z-index: 2; }
.comp-slider {
  position: absolute; top: 0; bottom: 0; width: 3px; background: var(--accent); z-index: 3;
  cursor: ew-resize;
}
.comp-slider::after {
  content: ''; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  width: 30px; height: 30px; background: var(--accent); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
}
.comp-label {
  position: absolute; top: 10px; padding: 4px 10px; background: rgba(0,0,0,0.7);
  color: #fff; font-size: 0.75rem; font-family: var(--font-display); border-radius: 3px; z-index: 4;
}
.comp-label-left { left: 10px; }
.comp-label-right { right: 10px; }

/* Results */
.results {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 20px; margin: 20px 0; display: none;
}
.results.visible { display: block; }
.results-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; text-align: center; }
.result-item .value { font-family: var(--font-display); font-size: 1.5rem; font-weight: 700; color: var(--accent); }
.result-item .label { font-size: 0.8rem; color: var(--text-muted); text-transform: uppercase; }
.savings-positive { color: #34D399 !important; }

/* Bulk */
.bulk-list { margin: 20px 0; display: none; }
.bulk-list.visible { display: block; }
.bulk-item {
  display: flex; align-items: center; justify-content: space-between; padding: 12px 16px;
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 8px;
}
.bulk-item .name { font-weight: 500; }
.bulk-item .size { color: var(--text-muted); font-size: 0.85rem; font-family: var(--font-display); }

footer { border-top: 1px solid var(--border); padding: 40px 0; margin-top: 60px; color: var(--text-muted); font-size: 0.85rem; }
footer .container { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 20px; }
footer a { color: var(--text-muted); }
footer a:hover { color: var(--accent); }

.blog-list { list-style: none; }
.blog-list li { border-bottom: 1px solid var(--border); padding: 20px 0; }
.blog-list h3 { margin-bottom: 6px; }
.blog-list h3 a { color: var(--text); }
.blog-list h3 a:hover { color: var(--accent); }
.blog-list .meta { color: var(--text-muted); font-size: 0.85rem; }

.blog-post { max-width: 760px; margin: 0 auto; padding: 40px 20px; }
.blog-post h1 { font-family: var(--font-display); font-size: 1.8rem; margin-bottom: 8px; }
.blog-post .meta { color: var(--text-muted); font-size: 0.85rem; margin-bottom: 32px; }
.blog-post h2 { font-size: 1.3rem; margin: 32px 0 12px; color: var(--accent); }
.blog-post h3 { font-size: 1.1rem; margin: 24px 0 8px; }
.blog-post p { color: var(--text-muted); margin-bottom: 16px; line-height: 1.7; }
.blog-post ul, .blog-post ol { color: var(--text-muted); margin: 0 0 16px 24px; }
.blog-post li { margin-bottom: 6px; }
.blog-post pre { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; overflow-x: auto; font-family: var(--font-display); font-size: 0.85rem; margin-bottom: 16px; color: var(--text-muted); }
.blog-post code { font-family: var(--font-display); background: var(--bg-card); padding: 2px 6px; border-radius: 3px; font-size: 0.9em; }

.about-content { max-width: 760px; margin: 0 auto; padding: 40px 20px; }
.about-content h1 { font-family: var(--font-display); font-size: 1.8rem; margin-bottom: 20px; }
.about-content h1 span { color: var(--accent); }
.about-content p { color: var(--text-muted); margin-bottom: 16px; line-height: 1.7; }
.about-content h2 { font-size: 1.2rem; margin: 28px 0 12px; color: var(--accent); }
.about-content ul { color: var(--text-muted); margin: 0 0 16px 24px; }
.about-content li { margin-bottom: 6px; }

/* Page Load Impact */
.page-load-impact {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; margin: 20px 0; display: none;
}
.page-load-impact.visible { display: block; }
.impact-title {
  font-family: var(--font-display); font-size: 0.8rem; text-transform: uppercase;
  color: var(--accent); margin-bottom: 16px; letter-spacing: 0.05em;
}
.impact-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 20px;
}
.impact-item { text-align: center; }
.impact-value {
  font-family: var(--font-display); font-size: 1.5rem; font-weight: 700; color: #34D399;
}
.impact-label { font-size: 0.8rem; color: var(--text-muted); text-transform: uppercase; }
.bandwidth-section { border-top: 1px solid var(--border); padding-top: 16px; }
.bandwidth-title {
  font-family: var(--font-display); font-size: 0.75rem; text-transform: uppercase;
  color: var(--text-muted); margin-bottom: 12px; letter-spacing: 0.04em;
}
.bandwidth-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
}
.bandwidth-item { text-align: center; }
.bandwidth-value {
  font-family: var(--font-display); font-size: 1.2rem; font-weight: 700; color: var(--accent);
}
.bandwidth-label { font-size: 0.8rem; color: var(--text-muted); }

/* FAQ Section */
.faq-section {
  margin: 40px 0 0;
}
.faq-section h2 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  margin-bottom: 20px;
  text-align: center;
}
.faq-item {
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
}
.faq-item:first-of-type { border-top: 1px solid var(--border); }
.faq-q {
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.faq-q::after { content: '+'; color: var(--accent); font-size: 1.2rem; }
.faq-item.open .faq-q::after { content: '\2212'; }
.faq-a {
  display: none;
  color: var(--text-muted);
  font-size: 0.95rem;
  padding-top: 8px;
  line-height: 1.6;
}
.faq-item.open .faq-a { display: block; }

@media (max-width: 768px) {
  .hero h1 { font-size: 1.5rem; }
  .control-row { flex-direction: column; }
  .results-grid { grid-template-columns: 1fr; }
  .impact-grid, .bandwidth-grid { grid-template-columns: 1fr; }
  nav { gap: 16px; }
}