* { box-sizing: border-box; }

:root {
  --bg: #f4f7f8;
  --card: #ffffff;
  --soft: #eaf3f4;
  --ink: #0f2a37;
  --muted: #5b6f7a;
  --line: #dbe5e8;
  --accent: #0e9f9a;
  --accent-ink: #ffffff;
  --accent-soft: #d9f1ef;
  --navy: #0b3b57;
  --radius: 18px;
  --shadow: 0 1px 2px rgba(15,42,55,.06), 0 8px 28px rgba(15,42,55,.07);
  --maxw: 1120px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1519;
    --card: #12212a;
    --soft: #16282f;
    --ink: #e6f0f3;
    --muted: #93a8b1;
    --line: #223640;
    --accent: #2cc4be;
    --accent-ink: #062321;
    --accent-soft: #123b3b;
    --navy: #7fd0e0;
    --shadow: 0 1px 2px rgba(0,0,0,.4), 0 8px 28px rgba(0,0,0,.35);
  }
}

html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Inter", "Segoe UI", Roboto, system-ui, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }

/* TOP BAR */
.topbar {
  position: sticky; top: 0; z-index: 900;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.topbar-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 10px 20px;
  display: flex; align-items: center; gap: 12px;
}
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.brand img { width: 44px; height: 44px; object-fit: contain; }
.brand span { font-weight: 800; font-size: 20px; letter-spacing: -.01em; }
.brand span b { color: var(--accent); font-weight: 800; }
.topnav { margin-left: auto; display: flex; gap: 6px; align-items: center; padding-right: 52px; }
.topnav a {
  text-decoration: none; font-weight: 600; font-size: 15px; color: var(--muted);
  padding: 8px 14px; border-radius: 999px;
}
.topnav a:hover { color: var(--ink); background: var(--soft); }
.topnav a.is-primary { background: var(--accent); color: var(--accent-ink); }
.topnav a.is-primary:hover { filter: brightness(1.07); }

/* HAMBURGER + SIDE MENU */
.hamburger-menu { position: fixed; top: 16px; right: 18px; cursor: pointer; z-index: 1001; padding: 6px; }
.hamburger-menu .bar { width: 26px; height: 3px; background: var(--ink); margin: 5px 0; border-radius: 2px; }
.side-menu {
  position: fixed; top: 0; right: -280px; width: 280px; height: 100%;
  background: var(--card); border-left: 1px solid var(--line);
  box-shadow: -8px 0 30px rgba(0,0,0,.15);
  transition: right .3s ease; padding-top: 80px; z-index: 1000;
}
.side-menu.open { right: 0; }
.side-menu .menu-links a {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 24px; color: var(--ink); font-weight: 600; text-decoration: none; font-size: 16px;
  border-bottom: 1px solid var(--line);
}
.side-menu .menu-links a i { color: var(--accent); font-size: 20px; }
.side-menu .menu-links a:hover { background: var(--soft); }

/* HERO */
.hero {
  max-width: var(--maxw); margin: 0 auto; padding: 64px 20px 40px;
  display: grid; grid-template-columns: 1.05fr 1fr; gap: 48px; align-items: center;
}
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--accent-soft); color: var(--accent);
  font-weight: 700; font-size: 13px; padding: 6px 12px; border-radius: 999px; margin-bottom: 18px;
}
.hero-text h1 { font-size: clamp(32px, 5vw, 52px); line-height: 1.08; letter-spacing: -.025em; font-weight: 800; margin: 0 0 16px; }
.hero-text h1 em { font-style: normal; color: var(--accent); }
.hero-text p { font-size: 19px; color: var(--muted); margin: 0 0 28px; max-width: 520px; }
.cta-row { display: flex; gap: 12px; flex-wrap: wrap; }
.cta-button, .cta-ghost {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 24px; border-radius: 12px; font-weight: 700; text-decoration: none;
}
.cta-button { background: var(--accent); color: var(--accent-ink); box-shadow: 0 6px 18px color-mix(in srgb, var(--accent) 35%, transparent); }
.cta-button:hover { filter: brightness(1.07); }
.cta-ghost { border: 1px solid var(--line); background: var(--card); }
.cta-ghost:hover { background: var(--soft); }
.hero-visual { position: relative; }
.hero-visual img.photo { width: 100%; display: block; border-radius: var(--radius); box-shadow: var(--shadow); border: 1px solid var(--line); }
.hero-visual .badge {
  position: absolute; left: -22px; bottom: -22px; width: 110px; height: 110px;
  background: var(--card); border: 1px solid var(--line); border-radius: 24px;
  box-shadow: var(--shadow); padding: 10px; display: grid; place-items: center;
}
.hero-visual .badge img { width: 100%; height: 100%; object-fit: contain; }

/* FEATURES */
.section-title { max-width: var(--maxw); margin: 56px auto 0; padding: 0 20px; }
.section-title h2 { font-size: 28px; letter-spacing: -.02em; margin: 0 0 4px; }
.section-title p { margin: 0; color: var(--muted); }
.features {
  max-width: var(--maxw); margin: 24px auto 0; padding: 0 20px;
  display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px;
}
.feature-link { text-decoration: none; display: flex; }
.feature {
  flex: 1; background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 22px; display: flex; flex-direction: column; gap: 14px;
  transition: transform .2s ease, border-color .2s ease;
}
.feature-icon {
  width: 48px; height: 48px; border-radius: 14px; background: var(--accent-soft); color: var(--accent);
  display: grid; place-items: center; font-size: 26px;
}
.feature strong { display: block; font-size: 17px; margin-bottom: 2px; }
.feature span { color: var(--muted); font-size: 14.5px; }
.feature .more { margin-top: auto; color: var(--accent); font-weight: 700; font-size: 14px; display: inline-flex; align-items: center; gap: 4px; }
@media (hover: hover) {
  .feature-link:hover .feature { transform: translateY(-4px); border-color: var(--accent); }
}

/* PRODUCT / FAQ */
.product {
  max-width: var(--maxw); margin: 40px auto 0; padding: 36px;
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow);
  display: flex; flex-wrap: wrap; gap: 36px; align-items: center; justify-content: space-between;
}
.product-wrap { padding: 0 20px; }
.product-text { flex: 1 1 360px; }
.product-text h2 { font-size: 28px; letter-spacing: -.02em; margin: 0 0 10px; }
.product-text h3 { font-size: 17px; margin: 22px 0 4px; }
.product-text p { color: var(--muted); margin: 0 0 12px; }
.trial {
  display: inline-flex; align-items: center; gap: 8px; background: var(--accent-soft); color: var(--ink);
  padding: 10px 16px; border-radius: 12px; font-weight: 600;
}
.trial i { color: var(--accent); font-size: 20px; }
.product img.box { width: 280px; max-width: 100%; border-radius: var(--radius); box-shadow: var(--shadow); border: 1px solid var(--line); }
.faq { display: block; }
.faq details { border-top: 1px solid var(--line); padding: 14px 0; }
.faq details:first-of-type { border-top: 0; }
.faq summary { cursor: pointer; font-weight: 700; font-size: 17px; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--accent); font-size: 22px; line-height: 1; }
.faq details[open] summary::after { content: "–"; }
.faq details p { margin: 8px 0 0; color: var(--muted); }

/* FOOTER */
footer {
  max-width: var(--maxw); margin: 56px auto 0; padding: 28px 20px 40px;
  border-top: 1px solid var(--line);
  display: flex; flex-wrap: wrap; gap: 16px; align-items: center; justify-content: space-between;
  color: var(--muted); font-size: 14px;
}
footer .brand img { width: 36px; height: 36px; }
footer .brand span { font-size: 16px; }
footer nav { display: flex; gap: 18px; flex-wrap: wrap; }
footer nav a { text-decoration: none; }
footer nav a:hover { color: var(--ink); }

@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; gap: 36px; padding-top: 36px; }
  .hero-visual .badge { left: 10px; bottom: -26px; width: 88px; height: 88px; }
  .topnav { display: none; }
  .product { padding: 24px; }
}