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

/* ── Tokens ────────────────────────────────────────────────────────────────── */
:root {
  --bg:       #fafaf9;
  --bg-card:  #ffffff;
  --bg-hover: #f3f2ef;
  --text:     #1a1917;
  --text-2:   #6b6860;
  --text-3:   #a8a49e;
  --border:   rgba(0,0,0,0.10);
  --accent:   #c0392b;
  --radius:   12px;
  --font:     -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --mono:     'SF Mono', 'Fira Mono', 'Consolas', monospace;
  --max:      960px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg:       #141413;
    --bg-card:  #1e1d1b;
    --bg-hover: #272623;
    --text:     #e8e6e1;
    --text-2:   #9b9790;
    --text-3:   #5a5750;
    --border:   rgba(255,255,255,0.08);
    --accent:   #e05c4f;
  }
}

/* ── Base ──────────────────────────────────────────────────────────────────── */
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; border-radius: var(--radius); display: block; }

/* ── Layout ────────────────────────────────────────────────────────────────── */
.container { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* ── Nav ───────────────────────────────────────────────────────────────────── */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}
.nav-logo {
  font-family: var(--mono);
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.02em;
}
.nav-logo span { color: var(--accent); }
.btn-download {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent);
  color: #fff;
  border-radius: 8px;
  padding: 8px 18px;
  font-size: 14px;
  font-weight: 500;
  transition: opacity 0.15s;
  border: none;
  cursor: pointer;
  text-decoration: none;
}
.btn-download:hover { opacity: 0.85; text-decoration: none; }

/* ── Hero ──────────────────────────────────────────────────────────────────── */
.hero {
  text-align: center;
  padding: 24px 24px 64px;
}
.hero-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}
.hero h1 {
  font-size: clamp(36px, 6vw, 64px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}
.hero p {
  font-size: 18px;
  color: var(--text-2);
  max-width: 540px;
  margin: 0 auto 36px;
}
.hero-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-card);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 18px;
  font-size: 14px;
  font-weight: 500;
  transition: background 0.15s;
  text-decoration: none;
}
.btn-secondary:hover { background: var(--bg-hover); text-decoration: none; }

/* ORP demo word inside hero */
.hero-word {
  display: inline-flex;
  font-family: var(--mono);
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 400;
  letter-spacing: 0.03em;
  margin: 48px auto 0;
  user-select: none;
}
.hero-word-before { color: var(--text); }
.hero-word-orp    { color: var(--accent); font-weight: 600; }
.hero-word-after  { color: var(--text); }

/* ── Screenshot ────────────────────────────────────────────────────────────── */
.screenshot-section {
  padding: 0 24px 40px;
}
.screenshot-wrap {
  max-width: var(--max);
  margin: 0 auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 24px 64px rgba(0,0,0,0.12);
}
.screenshot-wrap img { border-radius: 0; }
.screenshot-placeholder {
  aspect-ratio: 16/9;
  background: var(--bg-card);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-3);
  font-size: 14px;
  border: 2px dashed var(--border);
}

/* ── How it works ──────────────────────────────────────────────────────────── */
.how-section {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 72px 24px;
}
.section-title {
  text-align: center;
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 48px;
}
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 32px;
  max-width: var(--max);
  margin: 0 auto;
}
.step { text-align: center; }
.step-num {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  font-size: 18px;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 16px;
}
.step h3 { font-size: 16px; font-weight: 600; margin-bottom: 8px; }
.step p { font-size: 14px; color: var(--text-2); }

/* ── Features ──────────────────────────────────────────────────────────────── */
.features-section { padding: 72px 24px; }
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
  max-width: var(--max);
  margin: 0 auto;
}
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}
.feature-icon { font-size: 28px; margin-bottom: 12px; }
.feature-card h3 { font-size: 15px; font-weight: 600; margin-bottom: 6px; }
.feature-card p { font-size: 13px; color: var(--text-2); line-height: 1.5; }

/* ── Screenshots grid ──────────────────────────────────────────────────────── */
.gallery-section {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 72px 24px;
}
.gallery-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  max-width: var(--max);
  margin: 0 auto;
}
@media (max-width: 640px) { .gallery-grid { grid-template-columns: 1fr; } }
.gallery-label {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-3);
  margin-bottom: 10px;
}

/* ── Screenshots carousel ──────────────────────────────────────────────────── */
.carousel-section {
  padding: 72px 24px;
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.carousel {
  position: relative;
  max-width: var(--max);
  margin: 0 auto;
}
.carousel-viewport {
  overflow: hidden;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: 0 16px 48px rgba(0,0,0,0.10);
}
.carousel-track {
  display: flex;
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: transform;
}
.carousel-slide {
  min-width: 100%;
}
.carousel-slide img {
  width: 100%;
  border-radius: 0;
  display: block;
}
.carousel-caption {
  text-align: center;
  font-size: 13px;
  color: var(--text-3);
  padding: 10px 0 4px;
  background: var(--bg-card);
}
.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(calc(-50% - 18px));
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s, box-shadow 0.15s;
  box-shadow: 0 2px 8px rgba(0,0,0,0.10);
  z-index: 2;
}
.carousel-btn:hover { background: var(--bg-hover); box-shadow: 0 4px 12px rgba(0,0,0,0.15); }
.carousel-prev { left: -20px; }
.carousel-next { right: -20px; }
@media (max-width: 680px) {
  .carousel-prev { left: 8px; }
  .carousel-next { right: 8px; }
}
.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 20px;
}
.carousel-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: none;
  background: var(--border);
  cursor: pointer;
  padding: 0;
  transition: background 0.2s, transform 0.2s;
}
.carousel-dot.active {
  background: var(--accent);
  transform: scale(1.25);
}
.carousel-dot:hover { background: var(--text-3); }

/* ── Download ──────────────────────────────────────────────────────────────── */
.download-section { padding: 80px 24px; text-align: center; }
.download-section h2 { font-size: 28px; font-weight: 700; margin-bottom: 12px; letter-spacing: -0.02em; }
.download-section p { color: var(--text-2); margin-bottom: 32px; }
.download-note { font-size: 13px; color: var(--text-3); margin-top: 16px; }
.download-btns { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ── Footer ────────────────────────────────────────────────────────────────── */
footer {
  border-top: 1px solid var(--border);
  padding: 32px 24px;
}
.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-left { font-size: 13px; color: var(--text-3); }
.footer-links { display: flex; gap: 20px; }
.footer-links a { font-size: 13px; color: var(--text-3); }
.footer-links a:hover { color: var(--text); text-decoration: none; }