/* ═══════════════════════════════════════════════════════════════════
   brand.css — DentOS Unified Brand Stylesheet
   Single source of truth for tokens, animations, navbar, footer,
   typography, and all shared utilities.
   ═══════════════════════════════════════════════════════════════════ */

/* ── Design Tokens ─────────────────────────────────────────────── */
:root {
  --clr-indigo:    #4f46e5;
  --clr-blue:      #3b82f6;
  --clr-violet:    #7c3aed;
  --clr-dark:      #0a0f1e;

  --font-display: 'Plus Jakarta Sans', sans-serif;
  --font-body:    'Inter', sans-serif;
  --grad-logo:    linear-gradient(90deg, #4f46e5, #9333ea, #ec4899);

  --grad-primary:  linear-gradient(135deg, #4f46e5, #3b82f6, #7c3aed);
  --grad-btn:      linear-gradient(135deg, #4f46e5, #3b82f6);
  --grad-bar:      linear-gradient(90deg,  #4f46e5, #3b82f6, #7c3aed);

  --shadow-btn:    0 8px 24px rgba(99,102,241,.30);
  --shadow-cta:    0 25px 50px rgba(79,70,229,.50);
  --shadow-lift:   0 20px 40px rgba(0,0,0,.10);
  --shadow-nav:    0 1px 0 rgba(0,0,0,.06);
}

/* ── Reset ──────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
body { font-family: var(--font-body); margin: 0; }
h1, h2, h3 { font-family: var(--font-display); }

/* ── Accessibility ──────────────────────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--clr-indigo);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ── Scroll-triggered Animations ────────────────────────────────── */
.anim {
  opacity: 0;
  transition-duration: 0.6s;
  transition-timing-function: cubic-bezier(.21,.47,.32,.98);
}
.anim.up    { transform: translateY(32px); }
.anim.left  { transform: translateX(-44px); }
.anim.right { transform: translateX(44px); }
.anim.pop   {
  transform: scale(.4);
  transition-timing-function: cubic-bezier(.34,1.56,.64,1);
  transition-duration: .45s;
}
.anim.visible { opacity: 1; transform: none; }

/* Stagger delays */
.d1 { transition-delay: .08s; }
.d2 { transition-delay: .16s; }
.d3 { transition-delay: .24s; }
.d4 { transition-delay: .32s; }
.d5 { transition-delay: .40s; }
.d6 { transition-delay: .48s; }
.d7 { transition-delay: .56s; }
.d8 { transition-delay: .64s; }
.d9 { transition-delay: .72s; }

/* ── Keyframe Animations ─────────────────────────────────────────── */
@keyframes pulse { 0%,100% { opacity:1 } 50% { opacity:.4 } }
@keyframes spin  { to { transform: rotate(360deg); } }
@keyframes float { 0%,100% { transform:translateY(0) } 50% { transform:translateY(-6px) } }

.pulse { animation: pulse 2s cubic-bezier(.4,0,.6,1) infinite; }
.spin  { animation: spin  1s linear infinite; }
.float { animation: float 3s ease-in-out infinite; }

/* ── Gradient Text ───────────────────────────────────────────────── */
/* Standard: use on light backgrounds */
.grad-text {
  background: linear-gradient(135deg, #4f46e5 0%, #3b82f6 50%, #7c3aed 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
/* Light variant: use on dark hero backgrounds */
.grad-text-light {
  background: linear-gradient(135deg, #818cf8, #60a5fa, #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Inline highlight variant: blue → violet → pink, horizontal for readability */
.grad-highlight {
  background: linear-gradient(90deg, #3b82f6 0%, #7c3aed 55%, #ec4899 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 700;
}

/* ── Hover Lift ──────────────────────────────────────────────────── */
.lift { transition: transform .3s ease, box-shadow .3s ease; }
.lift:hover { transform: translateY(-4px); box-shadow: var(--shadow-lift); }

/* ── Arrow Hover ─────────────────────────────────────────────────── */
.arrow-r { transition: transform .2s; }
.group:hover .arrow-r { transform: translateX(4px); }

/* ── Background Utilities ────────────────────────────────────────── */
.bg-nav  { background: var(--grad-btn); }
.bg-btn  { background: var(--grad-btn); box-shadow: var(--shadow-btn); }
.bg-cta  { background: var(--grad-btn); box-shadow: var(--shadow-cta); }
.bg-bar  { background: var(--grad-bar); }

/* ── Primary Wordmark ────────────────────────────────────────────── */
.nav-wordmark {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 1;
  background: var(--grad-logo);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  user-select: none;
  text-decoration: none;
}

/* ── Logo Mark (icon lockup — retained for reference) ────────────── */
.nav-logo-icon {
  width: 2rem; height: 2rem;
  border-radius: 8px;
  background: #0f172a;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  transition: background .3s;
}
#nav.nav-dark .nav-logo-icon { background: #ffffff; }

.nav-logo-d {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 900;
  letter-spacing: -0.05em;
  line-height: 1;
  background: var(--grad-logo);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
  user-select: none;
}

.foot-logo-icon {
  width: 2rem; height: 2rem;
  border-radius: 8px;
  background: rgba(255,255,255,0.12);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}

/* ── Icon Tints ──────────────────────────────────────────────────── */
.icon-indigo  { background: #eef2ff; }
.icon-blue    { background: #eff6ff; }
.icon-purple  { background: #f5f3ff; }
.icon-orange  { background: #fff7ed; }
.icon-rose    { background: #fff1f2; }
.icon-teal    { background: #f0fdfa; }

/* ── Agent Avatar Gradients ──────────────────────────────────────── */
.ag-luna   { background: linear-gradient(135deg, #818cf8, #8b5cf6); }
.ag-nova   { background: linear-gradient(135deg, #60a5fa, #38bdf8); }
.ag-iris   { background: linear-gradient(135deg, #2dd4bf, #34d399); }
.ag-atlas  { background: linear-gradient(135deg, #c084fc, #f472b6); }
.ag-quill  { background: linear-gradient(135deg, #fb923c, #fb7185); }
.ag-flux   { background: linear-gradient(135deg, #38bdf8, #60a5fa); }
.ag-ledger { background: linear-gradient(135deg, #94a3b8, #64748b); }
.ag-echo   { background: linear-gradient(135deg, #34d399, #2dd4bf); }
.ag-halo   { background: linear-gradient(135deg, #a5b4fc, #60a5fa); }
.ag-orion  { background: linear-gradient(135deg, #f87171, #ef4444); }

/* ── Gradient Blobs ──────────────────────────────────────────────── */
.blob1 {
  position:absolute; top:0; left:50%; transform:translateX(-50%);
  width:800px; height:500px; border-radius:50%;
  background:rgba(199,210,254,.7); filter:blur(120px); pointer-events:none;
}
.blob2 {
  position:absolute; top:33%; right:25%;
  width:400px; height:400px; border-radius:50%;
  background:rgba(191,219,254,.5); filter:blur(100px); pointer-events:none;
}
.blob3 {
  position:absolute; bottom:25%; left:25%;
  width:300px; height:300px; border-radius:50%;
  background:rgba(221,214,254,.4); filter:blur(80px); pointer-events:none;
}

/* ══════════════════════════════════════════════════════════════════
   NAVBAR
   ══════════════════════════════════════════════════════════════════ */
#nav {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 50;
  background: rgba(255,255,255,.85);
  border-bottom: 1px solid transparent;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: background .3s, box-shadow .3s, border-color .3s;
}

/* Light nav — scrolled state */
#nav.scrolled {
  background: rgba(255,255,255,.97) !important;
  box-shadow: var(--shadow-nav);
  border-color: #f1f5f9;
}

/* Dark nav variant — add class="nav-dark" to <nav id="nav"> */
#nav.nav-dark {
  background: rgba(10,15,30,.8);
}
#nav.nav-dark.scrolled {
  background: rgba(10,15,30,.95) !important;
  box-shadow: 0 1px 0 rgba(0,0,0,.25);
  border-color: rgba(255,255,255,.06);
}

/* Logo text */
.nav-logo-text   { color: #0f172a; }
.nav-logo-accent { color: #4f46e5; }
#nav.nav-dark .nav-logo-text   { color: #fff; }
#nav.nav-dark .nav-logo-accent { color: #818cf8; }

/* Desktop nav links */
.nav-link {
  font-size: .875rem;
  font-weight: 500;
  text-decoration: none;
  transition: color .2s;
  color: #64748b;
}
.nav-link:hover  { color: #4f46e5; }
.nav-active      { color: #1e293b !important; font-weight: 600; }

#nav.nav-dark .nav-link        { color: #94a3b8; }
#nav.nav-dark .nav-link:hover  { color: #fff; }
#nav.nav-dark .nav-active      { color: #fff !important; }

/* CTA button in nav */
.nav-cta {
  display: inline-flex;
  align-items: center;
  padding: .625rem 1.25rem;
  border-radius: 9999px;
  font-size: .875rem;
  font-weight: 600;
  color: #fff !important;
  text-decoration: none;
  background: var(--grad-btn);
  box-shadow: 0 4px 14px rgba(99,102,241,.35);
  transition: transform .2s, box-shadow .2s;
  white-space: nowrap;
}
.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(99,102,241,.45);
}

/* ── Mobile Menu Button ──────────────────────────────────────────── */
.menu-btn {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  gap: 5px;
  padding: 0;
  border: none;
  background: transparent;
  border-radius: 8px;
  cursor: pointer;
  transition: background .2s;
}
.menu-btn:hover { background: rgba(99,102,241,.08); }
#nav.nav-dark .menu-btn:hover { background: rgba(255,255,255,.08); }

.menu-line {
  display: block;
  width: 20px; height: 2px;
  border-radius: 2px;
  background: #475569;
  transition: transform .25s cubic-bezier(.4,0,.2,1), opacity .2s;
}
#nav.nav-dark .menu-line { background: #94a3b8; }

/* Hamburger → X */
.menu-btn.open .menu-line:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-btn.open .menu-line:nth-child(2) { opacity: 0; transform: scaleX(0); }
.menu-btn.open .menu-line:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 767px) {
  .menu-btn { display: flex; }
  .nav-cta-desktop { display: none; }
}

/* ── Mobile Dropdown ─────────────────────────────────────────────── */
#nav-mobile {
  display: none;
  border-top: 1px solid rgba(0,0,0,.06);
  background: rgba(255,255,255,.98);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
#nav.nav-dark #nav-mobile {
  background: rgba(10,15,30,.97);
  border-color: rgba(255,255,255,.06);
}
#nav-mobile.open { display: block; }

.nav-mobile-links {
  max-width: 72rem;
  margin: 0 auto;
  padding: 1rem 1.5rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: .125rem;
}
.nav-mobile-link {
  display: block;
  padding: .625rem .75rem;
  border-radius: 8px;
  font-size: .9375rem;
  font-weight: 500;
  color: #475569;
  text-decoration: none;
  transition: background .15s, color .15s;
}
.nav-mobile-link:hover             { background: #f1f5f9; color: #4f46e5; }
.nav-mobile-link.nav-active        { color: #4f46e5; font-weight: 600; background: #eef2ff; }

#nav.nav-dark .nav-mobile-link              { color: #94a3b8; }
#nav.nav-dark .nav-mobile-link:hover        { background: rgba(255,255,255,.06); color: #fff; }
#nav.nav-dark .nav-mobile-link.nav-active   { color: #818cf8; background: rgba(129,140,248,.08); }

.nav-mobile-divider { border-top: 1px solid #e2e8f0; margin: .75rem 0 0; }
#nav.nav-dark .nav-mobile-divider { border-color: rgba(255,255,255,.08); }

.nav-mobile-cta {
  display: block;
  margin-top: .75rem;
  padding: .75rem 1.5rem;
  border-radius: 9999px;
  text-align: center;
  font-size: .9375rem;
  font-weight: 600;
  color: #fff !important;
  text-decoration: none;
  background: var(--grad-btn);
  box-shadow: 0 4px 14px rgba(99,102,241,.35);
  transition: transform .2s, box-shadow .2s;
}
.nav-mobile-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(99,102,241,.45);
}

/* ══════════════════════════════════════════════════════════════════
   FOOTER
   ══════════════════════════════════════════════════════════════════ */
.foot-link {
  color: #64748b;
  text-decoration: none;
  font-size: .875rem;
  transition: color .2s;
}
.foot-link:hover { color: #fff; }

/* ══════════════════════════════════════════════════════════════════
   PROSE  (articles, legal pages)
   ══════════════════════════════════════════════════════════════════ */
.prose h2 {
  font-size: 1.25rem; font-weight: 700; color: #0f172a;
  margin: 2.5rem 0 .75rem;
}
.prose h3 {
  font-size: 1rem; font-weight: 600; color: #1e293b;
  margin: 1.5rem 0 .5rem;
}
.prose p {
  color: #475569; line-height: 1.8;
  margin-bottom: 1.1rem; font-size: .9375rem;
}
.prose ul {
  color: #475569; line-height: 1.8;
  margin-bottom: 1rem; padding-left: 1.5rem; font-size: .9375rem;
}
.prose li   { margin-bottom: .375rem; }
.prose a    { color: #4f46e5; text-decoration: none; }
.prose a:hover { text-decoration: underline; }
.prose blockquote {
  border-left: 3px solid #6366f1;
  padding-left: 1.25rem;
  margin: 2rem 0;
  color: #64748b;
  font-style: italic;
}

/* ══════════════════════════════════════════════════════════════════
   SKIP NAV  (keyboard accessibility)
   ══════════════════════════════════════════════════════════════════ */
.skip-nav {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 9999;
  padding: .5rem 1.25rem;
  border-radius: 0 0 8px 8px;
  background: #4f46e5;
  color: #fff;
  font-size: .875rem;
  font-weight: 600;
  text-decoration: none;
  transition: top .15s;
}
.skip-nav:focus { top: 0; outline: 2px solid #818cf8; outline-offset: 2px; }

/* ══════════════════════════════════════════════════════════════════
   COOKIE CONSENT BANNER
   ══════════════════════════════════════════════════════════════════ */
#cookie-banner {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 9000;
  width: calc(100% - 3rem);
  max-width: 640px;
  background: #0f172a;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 16px;
  padding: 1.25rem 1.5rem;
  box-shadow: 0 16px 48px rgba(0,0,0,.35);
  color: #f1f5f9;
}
.cookie-btn-accept {
  padding: .5rem 1.25rem;
  border-radius: 9999px;
  border: none;
  background: linear-gradient(135deg, #4f46e5, #3b82f6);
  color: #fff;
  font-size: .8125rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity .2s, transform .2s;
}
.cookie-btn-accept:hover { opacity: .9; transform: translateY(-1px); }
.cookie-btn-decline {
  padding: .5rem 1.25rem;
  border-radius: 9999px;
  border: 1px solid rgba(255,255,255,.15);
  background: transparent;
  color: #94a3b8;
  font-size: .8125rem;
  font-weight: 600;
  cursor: pointer;
  transition: border-color .2s, color .2s;
}
.cookie-btn-decline:hover { border-color: rgba(255,255,255,.35); color: #e2e8f0; }

/* ══════════════════════════════════════════════════════════════════
   FAQ ACCORDION  (shared — used on product, agents, pricing, SEO pages)
   ══════════════════════════════════════════════════════════════════ */
.faq-body {
  padding: 0 24px 20px 60px;
  font-size: .875rem;
  color: #64748b;
  line-height: 1.7;
}
.faq-chevron {
  transition: transform .25s;
  flex-shrink: 0;
}
details[open] .faq-chevron { transform: rotate(180deg); }

/* ══════════════════════════════════════════════════════════════════
   SHARED JS PATTERN (reference)
   All pages use the same inline <script> block at bottom of <body>:
     - Navbar scroll class toggle (.scrolled)
     - Mobile menu open/close
     - IntersectionObserver for .anim elements
   Page-specific JS (pricing toggle, agent tabs, etc.) lives in
   each page's own <script> block after the shared block.
   ══════════════════════════════════════════════════════════════════ */