/* Sellflow landing page — base styles */
@import url("assets/colors_and_type.css");

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--sf-bg-1);
  color: var(--sf-fg-1);
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
img { display: block; max-width: 100%; }

.sf-container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 32px;
}

/* ---------- Buttons ---------- */
.sf-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 22px;
  border-radius: var(--sf-radius-pill);
  border: 1.5px solid transparent;
  font-weight: var(--sf-weight-semibold);
  font-size: 15px;
  letter-spacing: -0.005em;
  transition: transform var(--sf-duration-fast) var(--sf-ease-out),
              background var(--sf-duration-normal) var(--sf-ease-standard),
              border-color var(--sf-duration-normal) var(--sf-ease-standard),
              box-shadow var(--sf-duration-normal) var(--sf-ease-standard);
  cursor: pointer;
  white-space: nowrap;
}
.sf-btn-primary {
  background: var(--sf-primary);
  color: var(--sf-primary-ink);
}
.sf-btn-primary:hover { background: var(--sf-primary-700); transform: translateY(-1px); }

.sf-btn-accent {
  background: var(--sf-destructive);
  color: var(--sf-destructive-ink);
}
.sf-btn-accent:hover { background: var(--sf-destructive-700); transform: translateY(-1px); box-shadow: var(--sf-shadow-md); }

.sf-btn-ghost {
  background: transparent;
  color: var(--sf-fg-1);
  border-color: var(--sf-neutral-300);
}
.sf-btn-ghost:hover { border-color: var(--sf-fg-1); }

.sf-btn-ghost-light {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.35);
}
.sf-btn-ghost-light:hover { border-color: #fff; background: rgba(255,255,255,0.05); }

.sf-btn-lg { padding: 16px 28px; font-size: 16px; }

/* ---------- Section scaffolding ---------- */
section { position: relative; }
.sf-section { padding: 120px 0; }
.sf-section-dark { background: var(--sf-primary); color: #fff; }
.sf-section-muted { background: var(--sf-bg-3); }
.sf-section-aqua { background: var(--sf-muted); }

.sf-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: var(--sf-radius-pill);
  background: var(--sf-primary-050);
  color: var(--sf-primary);
  font-size: 13px;
  font-weight: var(--sf-weight-semibold);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}
.sf-eyebrow-dot {
  width: 6px; height: 6px; border-radius: 50%; background: var(--sf-destructive);
  box-shadow: 0 0 0 4px rgba(219, 0, 178, 0.18);
}
.sf-eyebrow-light {
  background: rgba(255,255,255,0.1);
  color: var(--sf-aqua-300);
}

.sf-section-title {
  display: block;
  font-family: var(--sf-font-display);
  font-weight: 700;
  font-size: clamp(36px, 4.6vw, 60px);
  line-height: 1.02;
  letter-spacing: -0.035em;
  margin: 16px 0 20px;
  max-width: 18ch;
  text-wrap: balance;
}
.sf-section-lede {
  font-size: 19px;
  line-height: 1.5;
  color: var(--sf-fg-2);
  max-width: 58ch;
}
.sf-section-dark .sf-section-lede { color: rgba(255,255,255,0.72); }

/* Marker emphasis — a navy underline swash */
.sf-mark {
  color: var(--sf-primary);
  position: relative;
  white-space: nowrap;
}
.sf-mark::after {
  content: "";
  position: absolute;
  left: -2%;
  right: -2%;
  bottom: 4px;
  height: 12px;
  background: var(--sf-aqua-300);
  z-index: -1;
  border-radius: 4px;
  opacity: 0.9;
}
.sf-section-dark .sf-mark { color: #fff; }
.sf-section-dark .sf-mark::after { background: var(--sf-destructive); opacity: 1; }

/* Accent text — magenta */
.sf-accent-text { color: var(--sf-destructive); }

/* Reveal on scroll */
.sf-reveal { opacity: 0; transform: translateY(24px); transition: opacity 700ms var(--sf-ease-out), transform 700ms var(--sf-ease-out); }
.sf-reveal.is-in { opacity: 1; transform: none; }

/* ---------- Navbar ---------- */
.sf-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,0.85);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 200ms, background 200ms;
}
.sf-nav.is-scrolled { border-color: var(--sf-neutral-200); }
.sf-nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 32px;
}
.sf-nav-logo img { height: 28px; width: auto; }
.sf-nav-links {
  display: flex;
  gap: 28px;
  font-size: 15px;
  color: var(--sf-fg-2);
}
.sf-nav-links a { font-weight: 500; transition: color 150ms; }
.sf-nav-links a:hover { color: var(--sf-primary); }
.sf-nav-actions { display: flex; align-items: center; gap: 10px; }

@media (max-width: 860px) {
  .sf-nav-links { display: none; }
}

/* ---------- Language toggle ---------- */
.sf-lang-toggle {
  display: flex;
  align-items: center;
  gap: 2px;
  background: var(--sf-neutral-100);
  border-radius: var(--sf-radius-pill);
  padding: 3px;
}
.sf-lang-btn {
  padding: 4px 10px;
  border-radius: var(--sf-radius-pill);
  font-size: 13px;
  font-weight: var(--sf-weight-semibold);
  font-family: var(--sf-font-sans);
  border: none;
  background: transparent;
  cursor: pointer;
  color: var(--sf-fg-2);
  transition: background var(--sf-duration-fast) var(--sf-ease-out),
              color var(--sf-duration-fast) var(--sf-ease-out),
              box-shadow var(--sf-duration-fast) var(--sf-ease-out);
  letter-spacing: 0.03em;
}
.sf-lang-btn.is-active {
  background: var(--sf-background);
  color: var(--sf-primary);
  box-shadow: var(--sf-shadow-xs);
}

/* ---------- Utility ---------- */
.sf-grid { display: grid; gap: 24px; }
.sf-grid-2 { grid-template-columns: repeat(2, 1fr); }
.sf-grid-3 { grid-template-columns: repeat(3, 1fr); }
.sf-grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 960px) {
  .sf-grid-4, .sf-grid-3, .sf-grid-2 { grid-template-columns: 1fr; }
}

/* ---------- Mobile global ---------- */
@media (max-width: 600px) {
  .sf-section { padding: 64px 0; }
  .sf-container { padding: 0 20px; }
  .sf-section-title { font-size: clamp(28px, 8vw, 40px); }
  .sf-section-lede { font-size: 16px; }
}

/* Dotted pattern background helper */
.sf-dots {
  background-image: radial-gradient(rgba(0,0,125,0.14) 1px, transparent 1px);
  background-size: 20px 20px;
}
.sf-dots-light {
  background-image: radial-gradient(rgba(255,255,255,0.12) 1px, transparent 1px);
  background-size: 22px 22px;
}