/* ============================================================
   Nurevo Design System — Components
   Depends on nurevo-tokens.css. Reusable across pages & lines.
   v1.0 — 2026-09-27
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--nv-font-sans);
  font-size: var(--nv-fs-base);
  line-height: var(--nv-lh-normal);
  color: var(--nv-text);
  background: var(--nv-bg);
  -webkit-font-smoothing: antialiased;
}
h1,h2,h3,h4 { line-height: var(--nv-lh-tight); font-weight: var(--nv-fw-black); letter-spacing: -0.02em; margin: 0 0 var(--nv-sp-4); color: var(--nv-text); }
h1 { font-size: var(--nv-fs-5xl); }
h2 { font-size: var(--nv-fs-3xl); }
h3 { font-size: var(--nv-fs-xl); font-weight: var(--nv-fw-bold); }
p  { margin: 0 0 var(--nv-sp-4); }
a  { color: inherit; text-decoration: none; }
img, svg { max-width: 100%; height: auto; display: block; }
ul { margin: 0; padding: 0; list-style: none; }

/* Focus visible for a11y */
a:focus-visible, button:focus-visible, input:focus-visible,
textarea:focus-visible, select:focus-visible {
  outline: none; box-shadow: var(--nv-ring); border-radius: var(--nv-radius-sm);
}
.nv-skip {
  position: absolute; left: -9999px; top: 0; background: var(--nv-ink); color:#fff;
  padding: var(--nv-sp-3) var(--nv-sp-4); z-index: 200; border-radius: 0 0 var(--nv-radius-sm) 0;
}
.nv-skip:focus { left: 0; }

/* Layout */
.nv-container { max-width: var(--nv-container); margin: 0 auto; padding: 0 var(--nv-sp-5); }
.nv-narrow { max-width: var(--nv-container-narrow); margin-left: auto; margin-right: auto; }
.nv-section { padding: var(--nv-sp-9) 0; }
.nv-section--tight { padding: var(--nv-sp-8) 0; }
.nv-center { text-align: center; }
.nv-eyebrow {
  display: inline-block; font-size: var(--nv-fs-sm); font-weight: var(--nv-fw-bold);
  letter-spacing: 0.08em; text-transform: uppercase; color: var(--nv-brand-1); margin-bottom: var(--nv-sp-3);
}
.nv-lead { font-size: var(--nv-fs-lg); color: var(--nv-text-muted); }
.nv-grad-text {
  background: var(--nv-brand-gradient); -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* Buttons */
.nv-btn {
  display: inline-flex; align-items: center; gap: var(--nv-sp-2);
  font: inherit; font-weight: var(--nv-fw-semi); font-size: var(--nv-fs-sm);
  padding: var(--nv-sp-3) var(--nv-sp-5); border-radius: var(--nv-radius-pill);
  border: 1px solid transparent; cursor: pointer; transition: transform var(--nv-dur) var(--nv-ease), box-shadow var(--nv-dur) var(--nv-ease), background var(--nv-dur);
  text-decoration: none; white-space: nowrap;
}
.nv-btn:hover { transform: translateY(-1px); }
.nv-btn--primary { background: var(--nv-brand-gradient); color: #fff; box-shadow: var(--nv-shadow-md); }
.nv-btn--dark { background: var(--nv-ink); color: #fff; }
.nv-btn--ghost { background: transparent; color: var(--nv-text); border-color: var(--nv-border); }
.nv-btn--ghost:hover { border-color: var(--nv-n-400); background: var(--nv-surface); }
.nv-btn--lg { padding: var(--nv-sp-4) var(--nv-sp-6); font-size: var(--nv-fs-base); }

/* Badges */
.nv-badge {
  display: inline-flex; align-items: center; gap: 6px; font-size: var(--nv-fs-xs);
  font-weight: var(--nv-fw-bold); letter-spacing: 0.03em; text-transform: uppercase;
  padding: 4px 10px; border-radius: var(--nv-radius-pill); border: 1px solid var(--nv-border);
  color: var(--nv-text-muted); background: var(--nv-surface);
}
.nv-badge--soon { color: #b45309; background: #fffbeb; border-color: #fde68a; }
.nv-badge--demo { color: #0e7490; background: #ecfeff; border-color: #a5f3fc; }
.nv-badge--live { color: #047857; background: #ecfdf5; border-color: #a7f3d0; }
.nv-badge--l1 { color: #c2410c; background: #fff7ed; border-color: #fed7aa; }
.nv-badge--l3 { color: #1d4ed8; background: #eff6ff; border-color: #bfdbfe; }
.nv-badge--l2 { color: #6d28d9; background: #f5f3ff; border-color: #ddd6fe; }
.nv-badge--labs { color: #0e7490; background: #ecfeff; border-color: #a5f3fc; }

/* Grid */
.nv-grid { display: grid; gap: var(--nv-sp-5); }
.nv-grid-2 { grid-template-columns: repeat(2, 1fr); }
.nv-grid-3 { grid-template-columns: repeat(3, 1fr); }
.nv-grid-4 { grid-template-columns: repeat(4, 1fr); }

/* Cards */
.nv-card {
  background: var(--nv-bg); border: 1px solid var(--nv-border); border-radius: var(--nv-radius);
  padding: var(--nv-sp-6); box-shadow: var(--nv-shadow-sm);
  transition: transform var(--nv-dur) var(--nv-ease), box-shadow var(--nv-dur) var(--nv-ease), border-color var(--nv-dur);
}
.nv-card:hover { transform: translateY(-3px); box-shadow: var(--nv-shadow-md); border-color: var(--nv-n-300); }
.nv-card h3 { margin-bottom: var(--nv-sp-2); }
.nv-card p { color: var(--nv-text-muted); font-size: var(--nv-fs-sm); margin-bottom: var(--nv-sp-3); }
.nv-card__icon {
  width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center;
  background: var(--nv-brand-gradient); color: #fff; margin-bottom: var(--nv-sp-4); font-size: 24px;
  box-shadow: 0 6px 16px -6px rgba(255,77,77,.5);
}
/* Per-line icon tint so each line feels distinct but consistent */
.nv-line--l3 .nv-card__icon { background: linear-gradient(135deg,#2563eb,#06b6d4); box-shadow: 0 6px 16px -6px rgba(37,99,235,.5); }
.nv-line--l2 .nv-card__icon { background: linear-gradient(135deg,#7c3aed,#2563eb); box-shadow: 0 6px 16px -6px rgba(124,58,237,.5); }
.nv-line--labs .nv-card__icon { background: linear-gradient(135deg,#06b6d4,#10b981); box-shadow: 0 6px 16px -6px rgba(6,182,212,.5); }
.nv-dark .nv-card__icon { box-shadow: none; }

/* Line card (L1/L3/L2/Labs) — the value ladder */
.nv-line { position: relative; overflow: hidden; }
.nv-line::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 4px; background: var(--nv-brand-gradient); }
.nv-line--l3::before { background: linear-gradient(90deg,#2563eb,#06b6d4); }
.nv-line--l2::before { background: linear-gradient(90deg,#7c3aed,#2563eb); }
.nv-line--labs::before { background: linear-gradient(90deg,#06b6d4,#10b981); }
.nv-line ul li { display: flex; gap: var(--nv-sp-2); align-items: flex-start; font-size: var(--nv-fs-sm); color: var(--nv-text-muted); margin-bottom: var(--nv-sp-2); }
.nv-line ul li::before { content: "\2713"; color: var(--nv-success); font-weight: var(--nv-fw-bold); flex: 0 0 auto; }
.nv-line__price { font-size: var(--nv-fs-lg); font-weight: var(--nv-fw-black); color: var(--nv-text); margin: var(--nv-sp-3) 0; }

/* Header / nav */
.nv-header {
  position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,0.85);
  backdrop-filter: saturate(180%) blur(12px); border-bottom: 1px solid var(--nv-border);
}
.nv-nav { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.nv-nav__brand { display: flex; align-items: center; gap: var(--nv-sp-2); font-weight: var(--nv-fw-black); font-size: var(--nv-fs-lg); }
.nv-nav__brand-mark { width: 30px; height: 30px; }
.nv-nav__links { display: flex; align-items: center; gap: var(--nv-sp-5); }
.nv-nav__links a { font-size: var(--nv-fs-sm); font-weight: var(--nv-fw-medium); color: var(--nv-text); transition: color var(--nv-dur); }
.nv-nav__links a:hover { color: var(--nv-brand-1); }
.nv-nav__cta { display: flex; align-items: center; gap: var(--nv-sp-3); }
.nv-nav__toggle { display: none; background: none; border: 0; cursor: pointer; padding: 8px; }
.nv-nav__toggle span { display: block; width: 22px; height: 2px; background: var(--nv-text); margin: 4px 0; border-radius: 2px; }

/* Hero */
.nv-hero { padding: var(--nv-sp-10) 0 var(--nv-sp-9); background:
  radial-gradient(1200px 500px at 80% -10%, rgba(255,107,53,0.08), transparent 60%),
  radial-gradient(900px 400px at 0% 0%, rgba(37,99,235,0.06), transparent 55%); }
.nv-hero h1 { max-width: 16ch; }
.nv-hero .nv-lead { max-width: 56ch; }
.nv-hero__cta { display: flex; gap: var(--nv-sp-3); flex-wrap: wrap; margin-top: var(--nv-sp-6); }
.nv-hero__stats { display: flex; gap: var(--nv-sp-6); flex-wrap: wrap; margin-top: var(--nv-sp-7); }
.nv-hero__stat { }
.nv-hero__stat b { display: block; font-size: var(--nv-fs-2xl); font-weight: var(--nv-fw-black); }
.nv-hero__stat span { font-size: var(--nv-fs-sm); color: var(--nv-text-muted); }

/* Hero with background video clip */
.nv-hero--video { position: relative; overflow: hidden; background: var(--nv-n-900); }
.nv-hero--video .nv-container { position: relative; z-index: 3; }
.nv-hero__media { position: absolute; inset: 0; z-index: 0; overflow: hidden; }
.nv-hero__media video, .nv-hero__media .nv-hero__poster {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
}
.nv-hero__media .nv-hero__poster { background-size: cover; background-position: center; }
.nv-hero__media video { opacity: 0; transition: opacity .8s var(--nv-ease); }
.nv-hero__media video[data-loaded] { opacity: 1; }
.nv-hero__media::after { /* readability + brand tint */
  content: ""; position: absolute; inset: 0; z-index: 2;
  background:
    linear-gradient(180deg, rgba(15,23,42,.55) 0%, rgba(15,23,42,.72) 100%),
    radial-gradient(1000px 420px at 82% -10%, rgba(255,107,53,.18), transparent 60%);
}
.nv-hero--video .nv-eyebrow { color: #fda; }
.nv-hero--video h1, .nv-hero--video .nv-lead { color: #fff; }
.nv-hero--video .nv-lead { opacity: .92; }
@media (prefers-reduced-motion: reduce) { .nv-hero__media video { display: none; } }

/* Animated gradient hero (dynamic background without video) */
.nv-hero--grad { position: relative; overflow: hidden; color: #fff; background: var(--nv-n-900); }
.nv-hero--grad .nv-container { position: relative; z-index: 3; }
.nv-hero--grad::before {
  content: ""; position: absolute; inset: -20%; z-index: 0;
  background:
    radial-gradient(600px 300px at 15% 20%, rgba(255,77,77,.42), transparent 60%),
    radial-gradient(600px 320px at 85% 15%, rgba(255,107,53,.38), transparent 60%),
    radial-gradient(700px 360px at 60% 90%, rgba(37,99,235,.35), transparent 62%);
  filter: blur(6px); animation: nv-grad-move 16s ease-in-out infinite alternate; will-change: transform;
}
.nv-hero--grad::after { content: ""; position: absolute; inset: 0; z-index: 1; background: linear-gradient(180deg, rgba(15,23,42,.35), rgba(15,23,42,.65)); }
.nv-hero--grad .nv-eyebrow { color: #ffd9c9; }
.nv-hero--grad h1, .nv-hero--grad .nv-lead { color: #fff; }
.nv-hero--grad .nv-lead { opacity: .93; }
/* Line-specific gradient accents */
.nv-hero--grad.hero--l3::before { background: radial-gradient(600px 300px at 15% 20%, rgba(37,99,235,.45), transparent 60%), radial-gradient(600px 320px at 85% 15%, rgba(6,182,212,.4), transparent 60%), radial-gradient(700px 360px at 60% 90%, rgba(37,99,235,.3), transparent 62%); }
.nv-hero--grad.hero--l2::before { background: radial-gradient(600px 300px at 15% 20%, rgba(124,58,237,.45), transparent 60%), radial-gradient(600px 320px at 85% 15%, rgba(37,99,235,.4), transparent 60%), radial-gradient(700px 360px at 60% 90%, rgba(124,58,237,.3), transparent 62%); }
.nv-hero--grad.hero--labs::before { background: radial-gradient(600px 300px at 15% 20%, rgba(6,182,212,.45), transparent 60%), radial-gradient(600px 320px at 85% 15%, rgba(16,185,129,.4), transparent 60%), radial-gradient(700px 360px at 60% 90%, rgba(6,182,212,.3), transparent 62%); }
@keyframes nv-grad-move {
  from { transform: translate(0,0) scale(1); }
  to   { transform: translate(2%, -2%) scale(1.08); }
}
@media (prefers-reduced-motion: reduce) { .nv-hero--grad::before { animation: none; } }

/* Ladder steps */
.nv-ladder { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--nv-sp-4); counter-reset: step; }
.nv-step { text-align: center; padding: var(--nv-sp-5); }
.nv-step__num { width: 40px; height: 40px; margin: 0 auto var(--nv-sp-3); border-radius: 50%; background: var(--nv-brand-gradient); color:#fff; display: grid; place-items: center; font-weight: var(--nv-fw-bold); }

/* Dark section */
.nv-dark { background: var(--nv-n-900); color: #fff; }
.nv-dark h2, .nv-dark h3 { color: #fff; }
.nv-dark .nv-lead, .nv-dark p { color: var(--nv-n-400); }
.nv-dark .nv-card { background: var(--nv-n-800); border-color: var(--nv-n-700); }
.nv-dark .nv-card p { color: var(--nv-n-400); }

/* Form */
.nv-form { display: grid; gap: var(--nv-sp-4); }
.nv-field label { display: block; font-size: var(--nv-fs-sm); font-weight: var(--nv-fw-semi); margin-bottom: 6px; }
.nv-field input, .nv-field select, .nv-field textarea {
  width: 100%; font: inherit; padding: var(--nv-sp-3) var(--nv-sp-4);
  border: 1px solid var(--nv-border); border-radius: var(--nv-radius-sm); background: var(--nv-bg); color: var(--nv-text);
}
.nv-field textarea { min-height: 120px; resize: vertical; }
.nv-hp { position: absolute; left: -9999px; opacity: 0; height: 0; overflow: hidden; }
.nv-form__note { font-size: var(--nv-fs-xs); color: var(--nv-text-muted); }
.nv-form__msg { font-size: var(--nv-fs-sm); padding: var(--nv-sp-3) var(--nv-sp-4); border-radius: var(--nv-radius-sm); display: none; }
.nv-form__msg.ok { display:block; background:#ecfdf5; color:#047857; border:1px solid #a7f3d0; }
.nv-form__msg.err { display:block; background:#fef2f2; color:#b91c1c; border:1px solid #fecaca; }

/* Footer */
.nv-footer { background: var(--nv-n-900); color: var(--nv-n-400); padding: var(--nv-sp-8) 0 var(--nv-sp-6); }
.nv-footer a { color: var(--nv-n-300); font-size: var(--nv-fs-sm); }
.nv-footer a:hover { color: #fff; }
.nv-footer__grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: var(--nv-sp-6); margin-bottom: var(--nv-sp-6); }
.nv-footer__col h4 { color: #fff; font-size: var(--nv-fs-sm); text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: var(--nv-sp-3); }
.nv-footer__col li { margin-bottom: var(--nv-sp-2); }
.nv-footer__bottom { border-top: 1px solid var(--nv-n-700); padding-top: var(--nv-sp-5); display: flex; justify-content: space-between; flex-wrap: wrap; gap: var(--nv-sp-3); font-size: var(--nv-fs-xs); }

/* Utilities */
.nv-mt-0 { margin-top: 0; } .nv-mb-0 { margin-bottom: 0; }
.nv-hide { display: none !important; }

/* Responsive */
@media (max-width: 1024px) {
  .nv-grid-4 { grid-template-columns: repeat(2, 1fr); }
  .nv-ladder { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  h1 { font-size: var(--nv-fs-4xl); }
  h2 { font-size: var(--nv-fs-2xl); }
  .nv-grid-2, .nv-grid-3 { grid-template-columns: 1fr; }
  .nv-footer__grid { grid-template-columns: 1fr 1fr; }
  .nv-nav__links, .nv-nav__cta .nv-btn--ghost { display: none; }
  .nv-nav__toggle { display: block; }
  .nv-nav__links.open {
    display: flex; flex-direction: column; position: absolute; top: 68px; left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--nv-border); padding: var(--nv-sp-4) var(--nv-sp-5); gap: var(--nv-sp-4);
  }
  .nv-section { padding: var(--nv-sp-8) 0; }
  .nv-hero { padding: var(--nv-sp-8) 0; }
}
@media (max-width: 480px) {
  .nv-grid-4 { grid-template-columns: 1fr; }
  .nv-ladder { grid-template-columns: 1fr; }
  .nv-footer__grid { grid-template-columns: 1fr; }
}