/* ============================================================
   Lead Risen — Brand foundation
   Tokens, typography, textures, custom utilities, motion
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Inter:wght@400;500;600;700&display=swap');

:root {
  /* Brand violet ramp (derived from logo gradient) */
  --violet-100: #ede9fe;
  --violet-300: #c4b5fd;
  --violet-400: #a78bfa;
  --violet-500: #8b5cf6;
  --violet-600: #7c3aed;
  --violet-700: #6d28d9;
  --violet-800: #5b21b6;

  /* Dark navy/charcoal surfaces */
  --ink-950: #0e0c16;
  --ink-900: #13111c;
  --ink-850: #1a1726;
  --ink-800: #1e1b2e;
  --ink-700: #292540;

  /* Light surfaces */
  --paper: #fafafc;
  --paper-tint: #f6f4fb;

  /* Text */
  --text-strong: #1e1b2e;
  --text-muted: #6b6880;
  --text-on-dark: #edebf5;
  --text-on-dark-muted: #a39fbd;

  /* Layered, violet-tinted shadows (low opacity) */
  --shadow-sm: 0 1px 2px rgba(30, 27, 46, .06), 0 2px 6px rgba(124, 58, 237, .05);
  --shadow-md: 0 4px 12px rgba(30, 27, 46, .08), 0 12px 28px rgba(124, 58, 237, .08);
  --shadow-lg: 0 10px 24px rgba(30, 27, 46, .10), 0 28px 60px rgba(124, 58, 237, .12);
  --shadow-glow: 0 18px 50px rgba(124, 58, 237, .35);

  --ease-spring: cubic-bezier(.34, 1.56, .64, 1);
  --ease-out: cubic-bezier(.22, 1, .36, 1);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, sans-serif;
  line-height: 1.7;
  color: var(--text-strong);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, .font-display {
  font-family: 'Space Grotesk', system-ui, sans-serif;
  letter-spacing: -0.03em;
  line-height: 1.05;
}

/* ---- Textures ---------------------------------------------- */
/* SVG fractal noise for grain/depth on dark sections */
.grain::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: .35;
  z-index: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.5'/%3E%3C/svg%3E");
}

/* Layered radial gradient field for hero / CTA bands */
.aurora {
  background:
    radial-gradient(60% 80% at 15% 10%, rgba(139, 92, 246, .22), transparent 60%),
    radial-gradient(50% 70% at 90% 0%, rgba(124, 58, 237, .18), transparent 55%),
    radial-gradient(70% 90% at 70% 100%, rgba(109, 40, 217, .14), transparent 60%);
}

.aurora-dark {
  background:
    radial-gradient(55% 75% at 12% 0%, rgba(139, 92, 246, .28), transparent 58%),
    radial-gradient(45% 65% at 88% 12%, rgba(91, 33, 182, .30), transparent 55%),
    radial-gradient(80% 90% at 50% 110%, rgba(124, 58, 237, .22), transparent 60%);
}

/* Text color utilities (these class names aren't in the Tailwind config,
   so define them here to resolve --text-* vars across all pages) */
.text-text-strong { color: var(--text-strong); }
.text-text-muted { color: var(--text-muted); }
.text-text-on-dark { color: var(--text-on-dark); }
.text-text-on-dark-muted { color: var(--text-on-dark-muted); }

/* Brand text gradient (for accent words / wordmark) */
.text-gradient {
  background: linear-gradient(120deg, var(--violet-500), var(--violet-700) 70%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* Hairline border helpers */
.ring-soft { box-shadow: inset 0 0 0 1px rgba(124, 58, 237, .12); }
.ring-soft-dark { box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .08); }

/* ---- Motion: scroll reveal (transform + opacity only) ------ */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .7s var(--ease-out), transform .7s var(--ease-out);
  will-change: transform, opacity;
}
.reveal.is-visible { opacity: 1; transform: none; }
.reveal-delay-1 { transition-delay: .08s; }
.reveal-delay-2 { transition-delay: .16s; }
.reveal-delay-3 { transition-delay: .24s; }
.reveal-delay-4 { transition-delay: .32s; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---- Interactive primitives -------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .55rem;
  font-weight: 600;
  border-radius: 9999px;
  padding: .85rem 1.6rem;
  transition: transform .35s var(--ease-spring), box-shadow .35s var(--ease-out), background-color .25s, color .25s;
  cursor: pointer;
}
.btn:focus-visible { outline: 2px solid var(--violet-500); outline-offset: 3px; }

.btn-primary {
  color: #fff;
  background: linear-gradient(120deg, var(--violet-500), var(--violet-700));
  box-shadow: var(--shadow-glow);
}
.btn-primary:hover { transform: translateY(-2px) scale(1.015); box-shadow: 0 22px 60px rgba(124, 58, 237, .45); }
.btn-primary:active { transform: translateY(0) scale(.99); }

.btn-ghost {
  color: var(--text-strong);
  background: transparent;
  box-shadow: inset 0 0 0 1.5px rgba(30, 27, 46, .16);
}
.btn-ghost:hover { transform: translateY(-2px); box-shadow: inset 0 0 0 1.5px var(--violet-600), var(--shadow-md); color: var(--violet-700); }
.btn-ghost:active { transform: translateY(0); }

.btn-ghost-dark {
  color: var(--text-on-dark);
  background: rgba(255,255,255,.04);
  box-shadow: inset 0 0 0 1.5px rgba(255, 255, 255, .18);
}
.btn-ghost-dark:hover { transform: translateY(-2px); box-shadow: inset 0 0 0 1.5px var(--violet-400), var(--shadow-glow); }
.btn-ghost-dark:active { transform: translateY(0); }

/* Form fields */
.form-field {
  width: 100%;
  border-radius: .85rem;
  background: #fff;
  padding: .7rem .95rem;
  font-size: .95rem;
  color: var(--text-strong);
  box-shadow: inset 0 0 0 1.5px rgba(30, 27, 46, .12);
  transition: box-shadow .25s var(--ease-out), background-color .25s;
}
.form-field::placeholder { color: #9b98ad; }
.form-field:hover { box-shadow: inset 0 0 0 1.5px rgba(124, 58, 237, .35); }
.form-field:focus {
  outline: none;
  box-shadow: inset 0 0 0 1.5px var(--violet-600), 0 0 0 4px rgba(124, 58, 237, .12);
}
select.form-field { appearance: none; -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%237c3aed' stroke-width='2.5'%3E%3Cpath d='M6 9l6 6 6-6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right .95rem center; padding-right: 2.5rem;
}

/* Card lift */
.card-lift { transition: transform .4s var(--ease-spring), box-shadow .4s var(--ease-out); }
.card-lift:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }

/* Endorsement chip (dark surfaces) */
.endorse {
  display: inline-flex; align-items: center; gap: .375rem;
  padding: .3rem .625rem; border-radius: 9999px;
  font-size: .72rem; font-weight: 500; line-height: 1;
  color: var(--violet-300);
  background: rgba(124, 58, 237, .14);
  box-shadow: inset 0 0 0 1px rgba(167, 139, 250, .18);
}
.endorse::before {
  content: ''; width: .7rem; height: .7rem; flex-shrink: 0;
  background: currentColor;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6L9 17l-5-5'/%3E%3C/svg%3E") center/contain no-repeat;
          mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6L9 17l-5-5'/%3E%3C/svg%3E") center/contain no-repeat;
}

/* Nav link underline */
.nav-link { position: relative; transition: color .25s; }
.nav-link::after {
  content: ''; position: absolute; left: 0; bottom: -4px; height: 2px; width: 100%;
  background: linear-gradient(90deg, var(--violet-500), var(--violet-700));
  transform: scaleX(0); transform-origin: left; transition: transform .3s var(--ease-out);
  border-radius: 2px;
}
.nav-link:hover::after, .nav-link[aria-current="page"]::after { transform: scaleX(1); }
.nav-link[aria-current="page"] { color: var(--violet-700); }

/* FAQ accordion */
.faq-panel { display: grid; grid-template-rows: 0fr; transition: grid-template-rows .4s var(--ease-out); }
.faq-item[data-open="true"] .faq-panel { grid-template-rows: 1fr; }
.faq-panel > div { overflow: hidden; }
.faq-icon { transition: transform .35s var(--ease-spring); }
.faq-item[data-open="true"] .faq-icon { transform: rotate(45deg); }

/* Sticky nav */
#site-nav {
  background: rgba(250, 250, 252, .72);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: box-shadow .3s var(--ease-out), background-color .3s, border-color .3s;
}
#site-nav.nav-scrolled {
  background: rgba(250, 250, 252, .92);
  border-bottom-color: rgba(124, 58, 237, .10);
  box-shadow: 0 6px 24px rgba(30, 27, 46, .06);
}

/* Mobile menu */
.mobile-menu { transition: opacity .3s var(--ease-out), transform .3s var(--ease-out); }
.mobile-menu[hidden] { display: none; }
.mobile-menu.closing { opacity: 0; transform: translateY(-8px); }

/* ---- Nav dropdown (Intelligence) — desktop ------------------- */
.nav-dropdown { position: relative; }
.nav-dropdown-toggle {
  display: inline-flex; align-items: center; gap: .3rem;
  background: none; border: 0; padding: 0; margin: 0;
  font: inherit; color: inherit; cursor: pointer;
}
.nav-dropdown-chevron { transition: transform .3s var(--ease-out); }
.nav-dropdown:hover .nav-dropdown-chevron,
.nav-dropdown:focus-within .nav-dropdown-chevron { transform: rotate(180deg); }

.nav-dropdown-menu {
  position: absolute; top: calc(100% + 16px); left: 50%;
  transform: translateX(-50%) translateY(10px);
  min-width: 232px; padding: .5rem;
  background: rgba(255, 255, 255, .98);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-radius: 1.1rem;
  box-shadow: var(--shadow-lg), inset 0 0 0 1px rgba(124, 58, 237, .10);
  opacity: 0; visibility: hidden; pointer-events: none;
  transition: opacity .25s var(--ease-out), transform .3s var(--ease-spring), visibility .25s;
  z-index: 60;
}
/* invisible hover bridge so the menu survives the cursor gap */
.nav-dropdown-menu::before { content: ''; position: absolute; top: -18px; left: 0; right: 0; height: 18px; }
.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown:focus-within .nav-dropdown-menu {
  opacity: 1; visibility: visible; pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}
.nav-dropdown-menu a {
  display: flex; align-items: center; gap: .65rem;
  padding: .6rem .8rem; border-radius: .7rem;
  font-size: .92rem; font-weight: 500; color: var(--text-strong);
  transition: background-color .2s, color .2s, transform .2s var(--ease-out);
}
.nav-dropdown-menu a::before {
  content: ''; flex: none; width: 6px; height: 6px; border-radius: 9999px;
  background: linear-gradient(120deg, var(--violet-500), var(--violet-700));
  opacity: .45; transition: opacity .2s, transform .2s var(--ease-spring);
}
.nav-dropdown-menu a:hover { background: var(--violet-100); color: var(--violet-700); transform: translateX(2px); }
.nav-dropdown-menu a:hover::before { opacity: 1; transform: scale(1.35); }
.nav-dropdown-menu a:focus-visible { outline: 2px solid var(--violet-500); outline-offset: 2px; }

/* ---- Nav dropdown — mobile accordion ------------------------- */
.m-dropdown-toggle {
  display: flex; align-items: center; justify-content: space-between; width: 100%;
  background: none; border: 0; font: inherit; cursor: pointer; color: inherit;
}
.m-dropdown-chevron { transition: transform .35s var(--ease-spring); }
.m-dropdown[data-open="true"] .m-dropdown-chevron { transform: rotate(180deg); }
.m-dropdown-panel { display: grid; grid-template-rows: 0fr; transition: grid-template-rows .35s var(--ease-out); }
.m-dropdown[data-open="true"] .m-dropdown-panel { grid-template-rows: 1fr; }
.m-dropdown-panel > div { overflow: hidden; }

/* ---- AI Workspace nav link (accented pill) ------------------- */
.ws-navlink {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  font-size: .9rem;
  font-weight: 600;
  color: var(--violet-700);
  background: rgba(124, 58, 237, .08);
  border-radius: 9999px;
  padding: .5rem .9rem;
  box-shadow: inset 0 0 0 1px rgba(124, 58, 237, .18);
  transition: transform .3s var(--ease-spring), box-shadow .3s var(--ease-out), background-color .25s, color .25s;
}
.ws-navlink:hover {
  transform: translateY(-2px);
  background: rgba(124, 58, 237, .14);
  box-shadow: inset 0 0 0 1px var(--violet-500), var(--shadow-md);
}
.ws-navlink:active { transform: translateY(0); }
.ws-navlink:focus-visible { outline: 2px solid var(--violet-500); outline-offset: 3px; }
.ws-navlink .ws-spark { font-size: .95em; line-height: 1; }

/* ---- Preloader / splash cover -------------------------------- */
/* Prevent scroll/jump behind the cover while the page loads */
html.pl-active, html.pl-active body { overflow: hidden; }

#preloader {
  position: fixed;
  inset: 0;
  z-index: 100;            /* above the z-50 sticky nav */
  display: grid;
  place-items: center;
  background: var(--paper);
  /* soft brand glow behind the mark */
  background-image:
    radial-gradient(55% 60% at 50% 38%, rgba(139, 92, 246, .14), transparent 70%),
    radial-gradient(40% 50% at 80% 90%, rgba(109, 40, 217, .10), transparent 60%);
  transition: opacity .5s var(--ease-out), visibility .5s var(--ease-out);
}
#preloader.is-loaded {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.pl-mark {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.1rem;
}
.pl-logo {
  height: 4.5rem;
  width: 4.5rem;
  border-radius: 1.25rem;
  object-fit: cover;
  box-shadow: var(--shadow-glow);
  animation: pl-in .6s var(--ease-spring) both, pl-pulse 1.8s var(--ease-out) .6s infinite;
}
.pl-word {
  font-family: 'Space Grotesk', system-ui, sans-serif;
  font-weight: 700;
  font-size: 1.3rem;
  letter-spacing: -0.03em;
  color: var(--text-strong);
  opacity: 0;
  animation: pl-fade .5s var(--ease-out) .18s forwards;
}
.pl-bar {
  position: relative;
  height: 3px;
  width: 120px;
  border-radius: 999px;
  overflow: hidden;
  background: rgba(124, 58, 237, .14);
  opacity: 0;
  animation: pl-fade .5s var(--ease-out) .28s forwards;
}
.pl-bar > i {
  position: absolute;
  inset: 0;
  display: block;
  width: 40%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--violet-500), var(--violet-700));
  animation: pl-slide 1.15s var(--ease-out) infinite;
}

@keyframes pl-in {
  from { opacity: 0; transform: translateY(10px) scale(.85); }
  to   { opacity: 1; transform: none; }
}
@keyframes pl-fade { to { opacity: 1; } }
@keyframes pl-pulse {
  0%, 100% { transform: scale(1); }
  50%      { transform: scale(1.06); }
}
@keyframes pl-slide {
  0%   { transform: translateX(-110%); }
  100% { transform: translateX(360%); }
}

@media (prefers-reduced-motion: reduce) {
  .pl-logo, .pl-word, .pl-bar { animation: none; opacity: 1; }
  .pl-bar > i { animation: none; width: 100%; }
  #preloader { transition: opacity .2s linear, visibility .2s linear; }
}