@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,500;9..144,600&family=IBM+Plex+Sans:wght@400;500;600&family=IBM+Plex+Mono:wght@400;500&display=swap');

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

:root {
  --bg: #f6f4ef; --bg-alt: #edeae2; --fg: #15181a; --fg-dim: #3a3e40; --fg-muted: #6a6e70;
  --border: #ddd9cd; --accent: #1c6e7a; --accent-deep: #134e56; --accent-soft: rgba(28,110,122,0.08);
  --card-bg: #ffffff; --band-bg: #15181a;
  --font-display: 'Fraunces', Georgia, serif; --font-body: 'IBM Plex Sans', sans-serif; --font-mono: 'IBM Plex Mono', monospace;
}

:root[data-theme="dark"] {
  --bg: #15181a; --bg-alt: #1b1e20; --fg: #f1efe9; --fg-dim: #c9cbc8; --fg-muted: #93968f;
  --border: #2c3033; --accent: #2f9aa8; --accent-deep: #6fd3df; --accent-soft: rgba(111,211,223,0.12);
  --card-bg: #1d2124; --band-bg: #0d0f10;
}

html, body { background: var(--bg); color: var(--fg); font-family: var(--font-body); }
html { transition: background-color 0.2s ease; }
body, .cta-band, .page-hero h1, .placeholder-note { transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease; }
a { color: inherit; text-decoration: none; }

/* Theme toggle switch */
.theme-toggle { background: none; border: none; cursor: pointer; padding: 0; display: inline-flex; align-items: center; }
.theme-toggle-track {
  position: relative; width: 50px; height: 27px; border-radius: 999px; background: var(--border);
  display: flex; align-items: center; justify-content: space-between; padding: 0 6px; transition: background-color 0.25s ease;
}
.theme-toggle-icon { font-size: 0.68rem; line-height: 1; z-index: 1; filter: grayscale(1); opacity: 0.7; }
.theme-toggle-thumb {
  position: absolute; top: 3px; left: 3px; width: 21px; height: 21px; border-radius: 50%;
  background: #fff; box-shadow: 0 1px 3px rgba(0,0,0,0.3); transition: transform 0.25s ease, background-color 0.25s ease;
}
:root[data-theme="dark"] .theme-toggle-track { background: #2c3033; }
:root[data-theme="dark"] .theme-toggle-thumb { transform: translateX(23px); background: #0d0f10; }

nav { display: flex; align-items: center; justify-content: space-between; padding: 1.1rem 3rem; max-width: 1280px; margin: 0 auto; flex-wrap: wrap; gap: 1rem; position: relative; }
nav .left { display: flex; align-items: center; gap: 2.2rem; flex-wrap: wrap; }
nav .brand { font-family: var(--font-display); font-size: 1.15rem; font-weight: 600; }
nav .links { display: flex; gap: 1.4rem; font-size: 0.9rem; color: var(--fg-dim); flex-wrap: wrap; }
nav .links a.active { color: var(--accent-deep); font-weight: 600; }
nav .links a:hover { color: var(--accent-deep); }
nav .right { display: flex; align-items: center; gap: 1rem; }
nav .preview-tag { font-size: 0.72rem; color: var(--fg-muted); border: 1px solid var(--border); padding: 0.25rem 0.7rem; border-radius: 999px; white-space: nowrap; }
nav .demo-btn { background: var(--accent); color: #fff; padding: 0.6rem 1.4rem; border-radius: 8px; font-size: 0.88rem; font-weight: 600; white-space: nowrap; }

/* Mobile nav — hamburger + slide-down menu */
nav .nav-toggle { display: none; }
nav .mobile-menu { display: none; }
@media (min-width: 761px) { nav .nav-toggle, nav .mobile-menu { display: none !important; } }
@media (max-width: 760px) {
  nav { padding: 1rem 1.3rem; }
  nav .links { display: none; }
  nav .right .preview-tag, nav .right .demo-btn { display: none; }
  nav .nav-toggle {
    display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 4px;
    width: 38px; height: 38px; border-radius: 8px; border: 1px solid var(--border);
    background: none; cursor: pointer; flex-shrink: 0;
  }
  nav .nav-toggle span { display: block; width: 17px; height: 2px; background: var(--fg); border-radius: 2px; transition: transform 0.2s ease, opacity 0.2s ease; }
  nav.menu-open .nav-toggle span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
  nav.menu-open .nav-toggle span:nth-child(2) { opacity: 0; }
  nav.menu-open .nav-toggle span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
  nav .mobile-menu {
    flex-direction: column; gap: 0.1rem;
    position: absolute; top: 100%; left: 0; right: 0; z-index: 50;
    background: var(--bg); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
    padding: 0.6rem 1.3rem 1.3rem; box-shadow: 0 16px 32px rgba(21,24,26,0.14);
  }
  nav.menu-open .mobile-menu { display: flex; }
  nav .mobile-menu a { padding: 0.8rem 0.1rem; font-size: 1.02rem; color: var(--fg-dim); border-bottom: 1px solid var(--border); }
  nav .mobile-menu a.active { color: var(--accent-deep); font-weight: 600; }
  nav .mobile-menu .mobile-menu-foot { display: flex; align-items: center; gap: 0.8rem; margin-top: 1rem; }
  nav .mobile-menu .demo-btn { display: inline-flex; align-items: center; justify-content: center; flex: 1; }
  nav .mobile-menu a.demo-btn { color: #fff; border-bottom: none; padding: 0.6rem 1.4rem; }   /* the button is a link to Contact: not the menu's grey link look */
  nav .mobile-menu .preview-tag { display: inline-flex; align-items: center; }
}

.eyebrow-pill {
  display: inline-flex; align-items: center; gap: 8px; font-size: 0.78rem; font-weight: 500; letter-spacing: 0.04em;
  color: var(--accent-deep); background: var(--accent-soft); border: 1px solid rgba(28,110,122,0.25);
  border-radius: 999px; padding: 0.4rem 1rem; margin-bottom: 1.4rem;
}
.eyebrow-pill .dot { width: 6px; height: 6px; border-radius: 999px; background: var(--accent); }

.page-hero { max-width: 820px; margin: 1.5rem auto 0; padding: 0 3rem; text-align: center; }
.page-hero h1 { font-family: var(--font-display); font-size: clamp(2.2rem,4.6vw,3.3rem); font-weight: 500; line-height: 1.15; color: var(--fg); margin-bottom: 1.3rem; }
.page-hero p.sub { font-size: 1.08rem; color: var(--fg-dim); line-height: 1.75; }

.cta-primary { display: inline-block; background: var(--accent); color: #fff; padding: 1rem 2.3rem; border-radius: 10px; font-weight: 600; font-size: 0.98rem; }
.cta-secondary { display: inline-block; background: transparent; color: var(--fg-dim); border: 1px solid var(--border); padding: 1rem 2.3rem; border-radius: 10px; font-size: 0.98rem; }

.cta-band { background: var(--band-bg); padding: 4.5rem 3rem; text-align: center; }
.cta-band h2 { font-family: var(--font-display); font-size: clamp(1.8rem,3.4vw,2.4rem); font-weight: 500; color: #f6f4ef; margin-bottom: 0.8rem; }
.cta-band p { color: #b7bbbc; font-size: 1rem; margin-bottom: 1.8rem; }

.placeholder-note {
  display: inline-flex; align-items: center; gap: 6px; font-size: 0.7rem; font-weight: 600; letter-spacing: 0.04em;
  text-transform: uppercase; color: #9a6b12; background: #fdf3df; border: 1px solid #ecd79f; border-radius: 6px; padding: 0.25rem 0.6rem;
}