/* =========================================================
   Arvion — premium landing page styles
   Brand palette shared with Flowgnt:
     ink (deep green-black) #0b1f17
     lime accent            #a3e635
     primary green          #16a34a
   ========================================================= */

:root {
  --av-ink: #0b1f17;
  --av-ink-2: #0f2a1e;
  --av-lime: #a3e635;
  --av-lime-dark: #84cc16;
  --av-green: #16a34a;
  --av-green-2: #22c55e;
  --av-paper: #f7faf7;
  --av-text: #0b1f17;
  --av-muted: #5b6b62;
  --av-muted-light: rgba(255, 255, 255, 0.72);
  --av-line: rgba(11, 31, 23, 0.1);
  --av-radius: 20px;
  --av-shadow: 0 24px 60px -20px rgba(11, 31, 23, 0.25);
  --av-display: "Bricolage Grotesque", "Inter", system-ui, sans-serif;
  --av-body: "Inter", system-ui, -apple-system, sans-serif;
}

* { scroll-behavior: smooth; }

html, body { max-width: 100%; overflow-x: hidden; }

body {
  font-family: var(--av-body);
  color: var(--av-text);
  background: var(--av-paper);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, .av-logo-text { font-family: var(--av-display); letter-spacing: -0.02em; }

.av-eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--av-green);
  margin-bottom: 1rem;
}
.av-hero .av-eyebrow { color: var(--av-lime); }

/* ---------- Buttons ---------- */
.av-btn-lime {
  --bs-btn-focus-shadow-rgb: 163, 230, 53;
  background: var(--av-lime);
  color: var(--av-ink);
  font-weight: 700;
  border: none;
  border-radius: 999px;
  padding: 0.7rem 1.5rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}
.av-btn-lime:hover {
  background: #b6f04f;
  color: var(--av-ink);
  transform: translateY(-2px);
  box-shadow: 0 12px 28px -8px rgba(163, 230, 53, 0.6);
}
.av-btn-ghost {
  background: transparent;
  color: var(--av-ink);
  border: 1.5px solid var(--av-line);
  border-radius: 999px;
  font-weight: 600;
  padding: 0.7rem 1.5rem;
  transition: border-color 0.18s ease, transform 0.18s ease;
}
.av-btn-ghost:hover { border-color: var(--av-green); color: var(--av-green); transform: translateY(-2px); }
.av-btn-ghost-light {
  background: transparent;
  color: #fff;
  border: 1.5px solid rgba(255, 255, 255, 0.3);
  border-radius: 999px;
  font-weight: 600;
  padding: 0.7rem 1.5rem;
  transition: border-color 0.18s ease, transform 0.18s ease;
}
.av-btn-ghost-light:hover { border-color: var(--av-lime); color: var(--av-lime); transform: translateY(-2px); }

/* ---------- Navbar ---------- */
.av-navbar {
  padding: 1rem 0;
  background: transparent;
  transition: background 0.3s ease, padding 0.3s ease, box-shadow 0.3s ease, backdrop-filter 0.3s ease;
}
.av-navbar.scrolled {
  background: rgba(247, 250, 247, 0.9);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  backdrop-filter: saturate(180%) blur(14px);
  box-shadow: 0 1px 0 var(--av-line);
  padding: 0.6rem 0;
}
.av-logo-mark { color: var(--av-green); display: inline-flex; }
.av-navbar:not(.scrolled) .av-logo-mark { color: var(--av-lime); }
.av-logo-text { font-weight: 800; font-size: 1.4rem; color: var(--av-ink); }
.av-navbar:not(.scrolled) .av-logo-text { color: #fff; }
.av-navbar .nav-link {
  color: var(--av-ink);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  transition: color 0.15s ease, background 0.15s ease;
}
.av-navbar:not(.scrolled) .nav-link { color: rgba(255, 255, 255, 0.88); }
.av-navbar .nav-link:hover { color: var(--av-green); }
.av-navbar:not(.scrolled) .nav-link:hover { color: var(--av-lime); background: rgba(255, 255, 255, 0.08); }

/* custom hamburger */
.navbar-toggler { border: none; padding: 0.4rem; }
.navbar-toggler:focus { box-shadow: none; }
.av-toggler-bar {
  display: block; width: 24px; height: 2px; margin: 5px 0;
  background: var(--av-ink); border-radius: 2px; transition: 0.2s ease;
}
.av-navbar:not(.scrolled) .av-toggler-bar { background: #fff; }

/* ---------- Hero ---------- */
.av-hero {
  position: relative;
  background: radial-gradient(120% 120% at 50% 0%, var(--av-ink-2) 0%, var(--av-ink) 60%);
  color: #fff;
  padding: 11rem 0 7rem;
  overflow: hidden;
}
.av-hero-glow {
  position: absolute; top: -20%; left: 50%; transform: translateX(-50%);
  width: 900px; height: 900px;
  background: radial-gradient(circle, rgba(163, 230, 53, 0.16) 0%, transparent 60%);
  pointer-events: none;
}
.av-hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: radial-gradient(circle at 50% 30%, #000 0%, transparent 70%);
  mask-image: radial-gradient(circle at 50% 30%, #000 0%, transparent 70%);
  pointer-events: none;
}
.av-hero-title {
  font-size: clamp(2.4rem, 6vw, 4.6rem);
  font-weight: 800;
  line-height: 1.03;
  margin-bottom: 1.5rem;
}
.av-underline {
  color: var(--av-lime);
  position: relative;
  white-space: nowrap;
}
.av-underline::after {
  content: "";
  position: absolute; left: 0; right: 0; bottom: 0.08em;
  height: 0.14em;
  background: var(--av-lime);
  opacity: 0.35;
  border-radius: 999px;
}
.av-hero-sub {
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  color: rgba(255, 255, 255, 0.78);
  max-width: 640px;
  margin: 0 auto 2.2rem;
  line-height: 1.6;
}
.av-hero-cta { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.av-hero-trust {
  margin-top: 2.4rem;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.6);
  display: inline-flex; align-items: center; gap: 0.5rem;
}
.av-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--av-green-2);
  box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.6);
  animation: av-pulse 2.4s infinite;
}
@keyframes av-pulse {
  0% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.5); }
  70% { box-shadow: 0 0 0 10px rgba(34, 197, 94, 0); }
  100% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0); }
}

/* ---------- Stats band ---------- */
.av-stats {
  background: var(--av-ink-2);
  color: #fff;
  padding: 2.6rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}
.av-stat-num {
  font-family: var(--av-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 800;
  color: var(--av-lime);
  line-height: 1;
}
.av-stat-label { color: rgba(255, 255, 255, 0.66); font-size: 0.9rem; margin-top: 0.5rem; }

/* ---------- Sections ---------- */
.av-section { padding: 6rem 0; }
.av-h2 { font-size: clamp(1.9rem, 4vw, 3rem); font-weight: 800; margin-bottom: 1rem; }
.av-lead { font-size: 1.15rem; color: var(--av-muted); max-width: 620px; line-height: 1.6; }
.av-body { font-size: 1.02rem; color: var(--av-muted); line-height: 1.7; }

/* ---------- Product cards ---------- */
.av-product-card {
  background: #fff;
  border: 1px solid var(--av-line);
  border-radius: var(--av-radius);
  padding: 2.4rem;
  box-shadow: var(--av-shadow);
}
.av-flagship {
  background: linear-gradient(135deg, #ffffff 0%, #f2f9ef 100%);
  border-color: rgba(22, 163, 74, 0.18);
}
.av-badge {
  display: inline-block;
  background: rgba(22, 163, 74, 0.12);
  color: var(--av-green);
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  padding: 0.35rem 0.8rem;
  border-radius: 999px;
  margin-bottom: 1rem;
}
.av-badge-soon { background: rgba(11, 31, 23, 0.06); color: var(--av-muted); }
.av-product-title {
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  font-weight: 800;
  display: flex; align-items: center; gap: 0.6rem;
  margin-bottom: 1rem;
}
.av-flowgnt-mark { color: var(--av-green); display: inline-flex; }
.av-product-title-sm { font-size: 1.35rem; font-weight: 800; margin-bottom: 0.6rem; }
.av-product-desc { color: var(--av-muted); line-height: 1.65; }
.av-feature-list { list-style: none; padding: 0; margin: 1.2rem 0 0; }
.av-feature-list li {
  position: relative;
  padding-left: 1.8rem;
  margin-bottom: 0.7rem;
  color: var(--av-text);
  font-weight: 500;
}
.av-feature-list li::before {
  content: "";
  position: absolute; left: 0; top: 0.35em;
  width: 1.1rem; height: 1.1rem;
  background: var(--av-lime);
  border-radius: 50%;
  box-shadow: inset 0 0 0 2px var(--av-ink);
}
.av-inline-link { color: var(--av-green); font-weight: 700; text-decoration: none; }
.av-inline-link:hover { text-decoration: underline; }
.av-soon { background: #fff; }

/* ---------- Product mock ---------- */
.av-mock {
  background: var(--av-ink);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 30px 60px -24px rgba(11, 31, 23, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.08);
}
.av-mock-head {
  display: flex; align-items: center; gap: 0.4rem;
  padding: 0.8rem 1rem;
  background: rgba(255, 255, 255, 0.04);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.av-mock-dot { width: 10px; height: 10px; border-radius: 50%; background: rgba(255, 255, 255, 0.25); }
.av-mock-title { color: rgba(255, 255, 255, 0.6); font-size: 0.82rem; margin-left: 0.6rem; }
.av-mock-body { padding: 1.2rem; display: flex; flex-direction: column; gap: 0.7rem; }
.av-chat {
  max-width: 82%;
  padding: 0.65rem 0.9rem;
  border-radius: 14px;
  font-size: 0.9rem;
  line-height: 1.4;
  opacity: 0;
  transform: translateY(8px);
  animation: av-chat-in 0.5s ease forwards;
}
.av-chat-in { background: rgba(255, 255, 255, 0.1); color: #fff; align-self: flex-start; border-bottom-left-radius: 4px; }
.av-chat-out { background: var(--av-green); color: #fff; align-self: flex-end; border-bottom-right-radius: 4px; }
.av-chat-ai {
  align-self: flex-start;
  background: transparent;
  color: rgba(255, 255, 255, 0.55);
  font-size: 0.78rem;
  display: flex; align-items: center; gap: 0.4rem;
}
.av-ai-tag {
  background: var(--av-lime); color: var(--av-ink);
  font-weight: 800; font-size: 0.7rem;
  padding: 0.1rem 0.4rem; border-radius: 6px;
}
.av-mock-body .av-chat:nth-child(1) { animation-delay: 0.2s; }
.av-mock-body .av-chat:nth-child(2) { animation-delay: 0.7s; }
.av-mock-body .av-chat:nth-child(3) { animation-delay: 1.2s; }
.av-mock-body .av-chat:nth-child(4) { animation-delay: 1.7s; }
.av-mock-body .av-chat:nth-child(5) { animation-delay: 2.2s; }
@keyframes av-chat-in { to { opacity: 1; transform: translateY(0); } }

/* ---------- About ---------- */
.av-about { background: #fff; border-top: 1px solid var(--av-line); border-bottom: 1px solid var(--av-line); }
.av-about-panel {
  background: var(--av-ink);
  color: #fff;
  border-radius: var(--av-radius);
  padding: 2rem;
  box-shadow: var(--av-shadow);
}
.av-about-row {
  display: flex; justify-content: space-between; gap: 1rem;
  padding: 1.1rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.av-about-row:last-child { border-bottom: none; }
.av-about-k { color: var(--av-lime); font-weight: 700; font-size: 0.9rem; }
.av-about-v { color: rgba(255, 255, 255, 0.82); text-align: right; font-weight: 500; }

/* ---------- Values ---------- */
.av-value-card {
  background: #fff;
  border: 1px solid var(--av-line);
  border-radius: var(--av-radius);
  padding: 2rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.av-value-card:hover { transform: translateY(-4px); box-shadow: var(--av-shadow); border-color: rgba(22, 163, 74, 0.25); }
.av-value-icon {
  width: 52px; height: 52px; border-radius: 14px;
  background: rgba(163, 230, 53, 0.18);
  color: var(--av-green);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 1.2rem;
}
.av-value-title { font-size: 1.25rem; font-weight: 800; margin-bottom: 0.5rem; }
.av-value-desc { color: var(--av-muted); line-height: 1.6; margin: 0; }

/* ---------- CTA band ---------- */
.av-cta-band {
  background: radial-gradient(120% 140% at 50% 0%, var(--av-ink-2) 0%, var(--av-ink) 70%);
  color: #fff;
  padding: 6rem 0;
  text-align: center;
}
.av-cta-inner { max-width: 680px; margin: 0 auto; }
.av-cta-title { font-size: clamp(2rem, 5vw, 3.2rem); font-weight: 800; margin-bottom: 1rem; }
.av-cta-sub { color: rgba(255, 255, 255, 0.75); font-size: 1.15rem; margin-bottom: 2rem; line-height: 1.6; }

/* ---------- Footer ---------- */
.av-footer { background: var(--av-ink); color: rgba(255, 255, 255, 0.7); padding: 4rem 0 1.6rem; }
.av-footer .av-logo-text { color: #fff; }
.av-footer .av-logo-mark { color: var(--av-lime); }
.av-footer-blurb { color: rgba(255, 255, 255, 0.55); max-width: 340px; line-height: 1.6; font-size: 0.95rem; }
.av-footer-h { color: #fff; font-size: 0.95rem; font-weight: 700; margin-bottom: 1rem; }
.av-footer-list { list-style: none; padding: 0; margin: 0; }
.av-footer-list li { margin-bottom: 0.6rem; }
.av-footer-list a { color: rgba(255, 255, 255, 0.62); text-decoration: none; transition: color 0.15s ease; font-size: 0.95rem; }
.av-footer-list a:hover { color: var(--av-lime); }
.av-footer-bottom {
  margin-top: 3rem; padding-top: 1.6rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 0.6rem;
  font-size: 0.85rem; color: rgba(255, 255, 255, 0.45);
}

/* ---------- Legal pages (terms / privacy) ---------- */
.av-legal-hero {
  background: radial-gradient(120% 120% at 50% 0%, var(--av-ink-2) 0%, var(--av-ink) 70%);
  color: #fff;
  padding: 8.5rem 0 3rem;
}
.av-back-link {
  display: inline-block;
  color: var(--av-lime);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.92rem;
  margin-bottom: 1.2rem;
  transition: opacity 0.15s ease;
}
.av-back-link:hover { opacity: 0.8; color: var(--av-lime); }
.av-legal-title { font-size: clamp(2rem, 5vw, 3rem); font-weight: 800; margin: 0; }
.av-legal-updated { color: rgba(255, 255, 255, 0.6); margin-top: 0.8rem; font-size: 0.95rem; }

.av-legal-body { background: var(--av-paper); padding: 4rem 0 5rem; }
.av-legal-wrap { max-width: 760px; margin: 0 auto; }
.av-legal-section { margin-bottom: 2.4rem; }
.av-legal-section h2 {
  font-size: 1.4rem;
  font-weight: 800;
  margin-bottom: 0.9rem;
  color: var(--av-ink);
}
.av-legal-section p,
.av-legal-section li { color: var(--av-muted); line-height: 1.75; font-size: 1.02rem; }
.av-legal-section p { margin-bottom: 1rem; }
.av-legal-section ul { padding-left: 1.3rem; margin-bottom: 1rem; }
.av-legal-section li { margin-bottom: 0.6rem; }
.av-legal-section a { color: var(--av-green); font-weight: 600; text-decoration: none; word-break: break-word; }
.av-legal-section a:hover { text-decoration: underline; }
.av-legal-intro { font-size: 1.12rem !important; color: var(--av-text) !important; }

.av-legal-note {
  background: rgba(22, 163, 74, 0.07);
  border-left: 4px solid var(--av-green);
  border-radius: 10px;
  padding: 1rem 1.2rem;
  font-size: 0.97rem !important;
  margin-top: 1.2rem;
}
.av-legal-note a { color: var(--av-green); }

/* Clearly-marked placeholder for details you fill in later. */
.av-todo {
  display: inline-block;
  background: #fff7d6;
  color: #7a5c00;
  border: 1px dashed #d9b400;
  border-radius: 6px;
  padding: 0.05rem 0.4rem;
  font-size: 0.9em;
  font-weight: 600;
}

.av-legal-disclaimer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--av-line);
  font-size: 0.9rem !important;
  color: var(--av-muted) !important;
  font-style: italic;
}

/* ---------- Scroll reveal ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; }
  .reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
  .av-chat { opacity: 1 !important; transform: none !important; animation: none !important; }
  .av-dot { animation: none !important; }
}

/* ---------- Responsive tweaks ---------- */
@media (max-width: 991.98px) {
  .av-navbar.scrolled, .av-navbar { background: var(--av-ink); }
  .av-navbar .nav-link, .av-navbar .av-logo-text { color: #fff; }
  .av-navbar .av-logo-mark { color: var(--av-lime); }
  .av-navbar .av-toggler-bar { background: #fff; }
  .navbar-collapse { padding-top: 1rem; }
  .av-hero { padding: 8.5rem 0 5rem; }
  .av-about-v { text-align: left; }
  .av-about-row { flex-direction: column; gap: 0.2rem; }
}