/* ===== Design Tokens ===== */
:root {
  --bg: #0c0c0c;
  --bg-alt: #151514;
  --bg-code: #1a1917;
  --text: #f5f2ed;
  --text-body: #f5f2edbf;
  --text-muted: #f5f2ed66;
  --text-faint: #f5f2ed40;
  --accent: #ff6b35;
  --border: #f5f2ed0f;
  --font-heading: 'DM Sans', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background: var(--bg);
  color: var(--text-body);
  font-family: var(--font-body);
  font-size: 18px;
  font-weight: 400;
  line-height: 1.6;
}

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

/* ===== Section Layout ===== */
section {
  padding: 120px 140px;
}

section.alt {
  background: var(--bg-alt);
}

/* ===== Section Labels ===== */
.section-label {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 24px;
}

/* ===== Typography ===== */
h1 {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 120px;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--text);
  margin-bottom: 32px;
}

h2 {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 56px;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 24px;
}

h2.footer-heading {
  font-size: 72px;
  line-height: 1.05;
}

.hero-description {
  font-size: 20px;
  color: var(--text-body);
  max-width: 540px;
  margin-bottom: 48px;
  line-height: 1.7;
}

.section-description {
  font-size: 20px;
  color: var(--text-body);
  max-width: 640px;
  margin-bottom: 32px;
  line-height: 1.7;
}

.em-lead {
  font-size: 28px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 16px;
  font-style: italic;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  overflow: hidden;
  padding-top: 160px;
  padding-bottom: 160px;
}

.hero-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(255, 107, 53, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-waveform {
  position: absolute;
  top: 120px;
  left: 100px;
  width: 600px;
  height: 320px;
  opacity: 0.12;
  pointer-events: none;
}

.hero-stats {
  font-family: var(--font-mono);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 32px;
}

.hero-stats-dot {
  margin: 0 12px;
  color: var(--text-faint);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 600;
  border-radius: 100px;
  padding: 14px 32px;
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
  text-decoration: none;
}

.btn:hover {
  text-decoration: none;
}

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

.btn-primary:hover {
  background: #e55a28;
}

.btn-secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--text-faint);
}

.btn-secondary:hover {
  border-color: var(--text-muted);
}

/* ===== Voice Instruction Sections ===== */
.mic-icon {
  width: 20px;
  height: 20px;
  margin-right: 4px;
  vertical-align: middle;
  opacity: 0.5;
}

.voice-instruction {
  font-size: 20px;
  color: var(--text-body);
  margin-bottom: 12px;
}

.voice-instruction code {
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--accent);
}

.response-text {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 80px;
  line-height: 1.1;
  color: var(--text);
  margin-top: 40px;
  display: none;
}

.response-text.visible {
  display: block;
}

/* ===== Code Blocks ===== */
.code-block {
  background: var(--bg-code);
  border-radius: 16px;
  padding: 36px 40px;
  overflow-x: auto;
  margin-top: 32px;
  max-width: 780px;
}

.code-block pre {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-body);
  white-space: pre;
}

/* Hand-painted syntax highlighting */
.kw {
  color: var(--accent);
}
.str {
  color: #d4a574;
}
.cm {
  color: var(--text-faint);
}
.fn {
  color: #c9b8a8;
}
.op {
  color: var(--text-muted);
}

/* ===== Gallery ===== */
.gallery {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.gallery-item {
  width: 110px;
  height: 110px;
  border-radius: 8px;
  border: 1px solid rgba(255, 107, 53, 0.15);
  background: var(--bg-code);
  overflow: hidden;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ===== TPS Report ===== */
#tpsreport {
  position: fixed;
  right: 40px;
  bottom: -600px;
  width: 320px;
  z-index: 100;
  border-radius: 4px;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5);
  transform: rotate(-12deg);
  transition: bottom 0.6s ease;
}

#tpsreport.visible {
  bottom: -80px;
}

/* ===== Stats Bar ===== */
.stats-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  padding: 80px 140px;
  background: var(--bg);
}

.stat {
  text-align: center;
  padding: 0 60px;
}

.stat-value {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 48px;
  color: var(--accent);
  line-height: 1.2;
}

.stat-label {
  font-family: var(--font-mono);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-top: 8px;
}

.stat-divider {
  width: 1px;
  height: 60px;
  background: var(--border);
  flex-shrink: 0;
}

/* ===== Footer CTA ===== */
.footer-cta {
  position: relative;
  overflow: hidden;
  text-align: center;
  padding: 140px 140px;
}

.footer-cta .hero-description {
  margin-left: auto;
  margin-right: auto;
}

.footer-cta .btn-group {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-wave {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  opacity: 0.08;
  pointer-events: none;
}

.footer-arcs {
  position: absolute;
  top: 60px;
  right: 60px;
  opacity: 0.06;
  pointer-events: none;
}

/* ===== Copyright ===== */
.copyright {
  border-top: 1px solid var(--border);
  padding: 32px 140px;
  text-align: center;
  font-size: 14px;
  color: var(--text-faint);
}

.copyright a {
  color: var(--text-muted);
}

/* ===== Unsupported Banner ===== */
#unsupported {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: #1a1917;
  border-top: 1px solid var(--border);
  padding: 24px 40px;
  z-index: 200;
  text-align: center;
}

#unsupported.visible {
  display: block;
}

#unsupported h4 {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 18px;
  color: var(--text);
  margin-bottom: 8px;
}

#unsupported p {
  font-size: 14px;
  color: var(--text-muted);
}

/* ===== Flickr Loader ===== */
#flickrLoader {
  margin-top: 24px;
  height: 24px;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--text-muted);
}

#flickrLoader p {
  opacity: 0;
  transition: opacity 0.2s ease;
}

#flickrLoader.visible p {
  opacity: 1;
}

/* ===== Responsive ===== */
@media (max-width: 1200px) {
  section {
    padding: 100px 80px;
  }
  .stats-bar {
    padding: 60px 80px;
  }
  .footer-cta {
    padding: 120px 80px;
  }
  .copyright {
    padding: 32px 80px;
  }
  h1 {
    font-size: 88px;
  }
  .hero-waveform {
    width: 440px;
    height: 240px;
    left: 50px;
  }
  h2 {
    font-size: 44px;
  }
  h2.footer-heading {
    font-size: 56px;
  }
  .response-text {
    font-size: 64px;
  }
  .stat {
    padding: 0 40px;
  }
}

@media (max-width: 768px) {
  section {
    padding: 80px 32px;
  }
  .stats-bar {
    padding: 48px 32px;
    flex-wrap: wrap;
    gap: 32px;
  }
  .stat-divider {
    display: none;
  }
  .stat {
    padding: 0 24px;
  }
  .footer-cta {
    padding: 80px 32px;
  }
  .copyright {
    padding: 24px 32px;
  }
  h1 {
    font-size: 56px;
  }
  .hero-waveform {
    width: 280px;
    height: 150px;
    left: 10px;
    top: 100px;
  }
  h2 {
    font-size: 36px;
  }
  h2.footer-heading {
    font-size: 44px;
  }
  .hero {
    padding-top: 100px;
    padding-bottom: 100px;
  }
  .hero-description {
    font-size: 18px;
  }
  .response-text {
    font-size: 48px;
  }
  .stat-value {
    font-size: 36px;
  }
  .code-block {
    padding: 24px;
    border-radius: 12px;
  }
  .code-block pre {
    font-size: 13px;
  }
  .footer-cta .btn-group {
    flex-direction: column;
    align-items: center;
  }
}

@media (max-width: 480px) {
  section {
    padding: 60px 20px;
  }
  .stats-bar {
    padding: 40px 20px;
  }
  .footer-cta {
    padding: 60px 20px;
  }
  .copyright {
    padding: 20px;
  }
  h1 {
    font-size: 40px;
    margin-bottom: 20px;
  }
  .hero-waveform {
    width: 200px;
    height: 110px;
    left: 5px;
    top: 80px;
  }
  h2 {
    font-size: 28px;
  }
  h2.footer-heading {
    font-size: 32px;
  }
  .hero {
    padding-top: 80px;
    padding-bottom: 80px;
  }
  .response-text {
    font-size: 36px;
  }
  .stat-value {
    font-size: 28px;
  }
  .code-block {
    padding: 20px 16px;
  }
  .code-block pre {
    font-size: 12px;
  }
  .em-lead {
    font-size: 22px;
  }
  .gallery-item {
    width: 90px;
    height: 90px;
  }
  #tpsreport {
    width: 160px;
    right: 20px;
  }
  .btn {
    padding: 12px 24px;
    font-size: 15px;
  }
}