/* =========================================================
   APEX DRAFT — Design System v2
   Premium studio look: warm ink/paper light theme with a
   dedicated violet/cyan "Intelligence" language for AI.
   ========================================================= */

:root{
  /* Ink / neutrals (from brand navy) */
  --ink:        #0E1B2C;
  --ink-2:      #2B3A52;
  --body:       #475569;
  --muted:      #64748B;
  --bg:         #FFFFFF;
  --bg-2:       #F8FAFC;
  --bg-3:       #F1F5F9;
  --surface:    #FFFFFF;
  --glass:      rgba(255,255,255,0.85);
  --glass-strong: rgba(255,255,255,0.94);
  --border:     rgba(14,27,44,0.08);
  --border-2:   rgba(14,27,44,0.14);

  /* Brand accent (from logo arrow) */
  --accent:       #E4380E;
  --accent-2:     #C42910;
  --accent-light: #FF6B3D;
  --accent-50:    #FFF5F2;
  --accent-100:   #FDEEE7;

  /* Intelligence accent — reserved for AI-for-Business language */
  --ai-1:       #6D5EF5;
  --ai-2:       #06B6D4;
  --ai-3:       #B786FF;
  --ai-ink:     #0A0E1F;
  --ai-ink-2:   #131A33;
  --ai-glass:   rgba(255,255,255,0.06);
  --ai-border:  rgba(255,255,255,0.14);

  /* Gradients */
  --grad-accent: linear-gradient(115deg, #FF7A45 0%, #E4380E 55%, #B32410 100%);
  --grad-ink:    linear-gradient(135deg, #16283F 0%, #0E1B2C 100%);
  --grad-ai:     linear-gradient(120deg, #6D5EF5 0%, #8B5CF6 45%, #06B6D4 100%);
  --grad-ai-dark: radial-gradient(120% 140% at 15% 0%, #1B2350 0%, #0A0E1F 55%), radial-gradient(90% 90% at 100% 100%, rgba(34,211,238,0.14), transparent 60%);
  --grad-mesh:   radial-gradient(60% 60% at 15% 10%, rgba(228,56,14,0.07), transparent 60%),
                 radial-gradient(50% 50% at 90% 20%, rgba(109,94,245,0.06), transparent 60%);
  --grad-mesh-ai: radial-gradient(55% 65% at 85% 0%, rgba(109,94,245,0.16), transparent 60%),
                  radial-gradient(45% 55% at 10% 100%, rgba(34,211,238,0.12), transparent 60%);

  /* Elevation */
  --shadow-xs: 0 1px 3px rgba(14,27,44,0.05);
  --shadow-sm: 0 4px 16px rgba(14,27,44,0.06);
  --shadow-md: 0 12px 36px rgba(14,27,44,0.08);
  --shadow-lg: 0 24px 64px rgba(14,27,44,0.11);
  --shadow-accent: 0 14px 34px rgba(228,56,14,0.25);
  --shadow-ai: 0 18px 46px rgba(109,94,245,0.28);

  /* Radii */
  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 24px;
  --r-xl: 32px;
  --r-2xl: 40px;
  --r-pill: 999px;

  /* Type scale */
  --font-display: 'Plus Jakarta Sans', 'Inter', system-ui, -apple-system, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Consolas, monospace;

  /* Layout */
  --container: 1240px;
  --container-narrow: 820px;
  --container-wide: 1400px;
  --nav-h: 84px;
  --nav-h-scrolled: 68px;
  --nav-logo-left: clamp(20px, 4vw, 48px);

  /* Motion */
  --ease: cubic-bezier(.22,1,.36,1);
  --ease-soft: cubic-bezier(.16,.84,.44,1);
  --ease-spring: cubic-bezier(.34,1.56,.64,1);
}

/* =========================================================
   Reset
   ========================================================= */
*, *::before, *::after{ box-sizing: border-box; }
html{
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *, *::before, *::after{
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}
body{
  margin: 0;
  background: var(--bg);
  color: var(--body);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
body.lock-scroll{ overflow: hidden; height: 100%; }

/* Intro-loader visibility gate — see js/main.js runLoader() */
html.intro-pending, html.intro-pending body{ overflow: hidden; height: 100%; }
.site-nav, main, .site-footer{ transition: opacity .85s var(--ease-soft); }
html.intro-pending .site-nav,
html.intro-pending main,
html.intro-pending .site-footer{ opacity: 0; }

img{ max-width: 100%; display: block; }
svg{ display: block; }
a{ color: inherit; text-decoration: none; }
ul, ol{ margin: 0; padding: 0; list-style: none; }
button{ font-family: inherit; cursor: pointer; }
input, textarea, select{ font-family: inherit; font-size: inherit; }

h1, h2, h3, h4, h5{
  font-family: var(--font-display);
  color: var(--ink);
  line-height: 1.15;
  margin: 0;
  letter-spacing: -0.025em;
  font-weight: 700;
}
p{ margin: 0; }

/* Text Gradient utilities */
.text-gradient{
  background: var(--grad-accent);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.text-gradient-ai{
  background: var(--grad-ai);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* Selection */
::selection{ background: var(--accent); color: #fff; }

/* Visible keyboard focus */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
[tabindex]:focus-visible{
  outline: 2.5px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link{
  position: fixed;
  top: -60px; left: 16px;
  background: var(--ink);
  color: #fff;
  padding: 12px 18px;
  border-radius: var(--r-sm);
  z-index: 9999;
  transition: top .25s var(--ease);
  font-weight: 600;
  font-size: 14px;
}
.skip-link:focus{ top: 16px; }

/* =========================================================
   Scroll progress bar
   ========================================================= */
.scroll-progress{
  position: fixed;
  top: 0; left: 0;
  height: 2.5px;
  width: 0%;
  background: var(--grad-accent);
  z-index: 700;
  transition: width .08s linear;
}

/* =========================================================
   Layout primitives
   ========================================================= */
.container{
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(20px, 5vw, 48px);
}
.container-narrow{
  width: 100%;
  max-width: var(--container-narrow);
  margin-inline: auto;
  padding-inline: clamp(20px, 5vw, 48px);
}
.container-wide{
  width: 100%;
  max-width: var(--container-wide);
  margin-inline: auto;
  padding-inline: clamp(20px, 5vw, 48px);
}

section{ position: relative; }
.section{ padding-block: clamp(64px, 9vw, 120px); }
.section-tight{ padding-block: clamp(48px, 6vw, 84px); }

.section-head{
  max-width: 680px;
  margin-bottom: clamp(36px, 5vw, 64px);
}
.section-head.center{ margin-inline: auto; text-align: center; }
.section-head.wide{ max-width: 820px; }

.eyebrow{
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-2);
  margin-bottom: 16px;
}
.eyebrow::before{
  content: '';
  width: 22px; height: 2px;
  background: var(--grad-accent);
  border-radius: 2px;
  display: inline-block;
}
.eyebrow.ai{ color: var(--ai-2); }
.eyebrow.ai::before{ background: var(--grad-ai); }
.eyebrow.on-dark{ color: #FF9166; }
.eyebrow.on-dark::before{ background: var(--grad-accent); }

.section-head h2{
  font-size: clamp(28px, 3.6vw, 42px);
  margin-bottom: 16px;
}
.section-head p{
  font-size: clamp(15.5px, 1.4vw, 17.5px);
  color: var(--body);
}

.grad-text{
  background: var(--grad-accent);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.grad-text-ai{
  background: var(--grad-ai);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* =========================================================
   Buttons
   ========================================================= */
.btn{
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 15px 28px;
  border-radius: var(--r-pill);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 15px;
  border: 1px solid transparent;
  white-space: nowrap;
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), background .35s var(--ease), border-color .35s var(--ease), color .35s var(--ease);
  will-change: transform;
}
.btn svg{ width: 17px; height: 17px; flex: none; transition: transform .35s var(--ease); }

.btn-primary{
  background: var(--grad-accent);
  color: #fff;
  box-shadow: var(--shadow-accent);
}
.btn-primary:hover{
  transform: translateY(-2px);
  box-shadow: 0 20px 42px rgba(228,56,14,0.36);
}
.btn-primary:hover svg{ transform: translateX(3px); }

.btn-ghost{
  background: var(--glass-strong);
  color: var(--ink);
  border-color: var(--border-2);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}
.btn-ghost:hover{
  transform: translateY(-2px);
  border-color: var(--accent);
  color: var(--accent-2);
  box-shadow: var(--shadow-md);
}

.btn-dark{
  background: var(--grad-ink);
  color: #fff;
  box-shadow: 0 14px 30px rgba(14,27,44,0.24);
}
.btn-dark:hover{
  transform: translateY(-2px);
  box-shadow: 0 20px 40px rgba(14,27,44,0.32);
}

.btn-ai{
  background: var(--grad-ai);
  color: #fff;
  box-shadow: var(--shadow-ai);
  background-size: 180% 180%;
  animation: aiBtnShift 6s ease infinite;
}
.btn-ai:hover{
  transform: translateY(-2px);
  box-shadow: 0 22px 50px rgba(109,94,245,0.40);
}
@keyframes aiBtnShift{
  0%,100%{ background-position: 0% 50%; }
  50%{ background-position: 100% 50%; }
}

.btn-ghost-dark{
  background: rgba(255,255,255,.06);
  color: #fff;
  border-color: rgba(255,255,255,.18);
  backdrop-filter: blur(14px);
}
.btn-ghost-dark:hover{
  transform: translateY(-2px);
  border-color: rgba(255,255,255,.4);
  background: rgba(255,255,255,.1);
}

.btn-block{ width: 100%; }
.btn-lg{ padding: 17px 34px; font-size: 15.5px; }
.btn-sm{ padding: 10px 18px; font-size: 13.5px; }
.btn[disabled]{ opacity: .7; cursor: not-allowed; transform: none !important; }

.link-arrow{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 14.5px;
  color: var(--accent-2);
  position: relative;
}
.link-arrow svg{ width: 15px; height: 15px; transition: transform .3s var(--ease); }
.link-arrow:hover svg{ transform: translateX(4px); }
.link-arrow::after{
  content: '';
  position: absolute; left: 0; right: 0; bottom: -3px;
  height: 1px; background: currentColor;
  transform: scaleX(0); transform-origin: left;
  transition: transform .3s var(--ease);
}
.link-arrow:hover::after{ transform: scaleX(1); }
.link-arrow.ai{ color: var(--ai-1); }

/* =========================================================
   Glass surfaces / cards
   ========================================================= */
.glass-card{
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow: var(--shadow-sm);
  transition: transform .45s var(--ease), box-shadow .45s var(--ease), border-color .45s var(--ease);
}
.glass-card:hover{
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-2);
}

.surface-card{
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-sm);
  transition: transform .4s var(--ease), box-shadow .4s var(--ease);
}

/* Dark "intelligence" glass card, used exclusively for AI content */
.ai-card{
  position: relative;
  background: var(--ai-glass);
  border: 1px solid var(--ai-border);
  border-radius: var(--r-lg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  overflow: hidden;
  transition: transform .45s var(--ease), border-color .45s var(--ease), box-shadow .45s var(--ease);
}
.ai-card::before{
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(140px 140px at var(--mx, 30%) var(--my, 0%), rgba(109,94,245,0.25), transparent 70%);
  opacity: 0;
  transition: opacity .4s var(--ease);
  pointer-events: none;
}
.ai-card:hover{
  transform: translateY(-6px);
  border-color: rgba(139,124,255,.4);
  box-shadow: var(--shadow-ai);
}
.ai-card:hover::before{ opacity: 1; }

.chip{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: var(--r-pill);
  background: var(--accent-50);
  color: var(--accent-2);
  font-size: 13px;
  font-weight: 600;
  font-family: var(--font-display);
  border: 1px solid var(--accent-100);
}
.chip.ai{
  background: rgba(109,94,245,0.12);
  color: var(--ai-1);
  border-color: rgba(109,94,245,0.24);
}
.chip.on-dark{
  background: rgba(255,255,255,0.08);
  color: #fff;
  border-color: rgba(255,255,255,0.16);
}
.chip .dot{ width: 6px; height: 6px; border-radius: 50%; background: currentColor; }

.badge-new{
  display: inline-flex;
  align-items: center;
  padding: 3px 9px;
  border-radius: var(--r-pill);
  background: var(--grad-ai);
  color: #fff;
  font-family: var(--font-display);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
}

/* Decorative ascent line — brand signature motif */
.ascent{
  position: absolute;
  pointer-events: none;
  opacity: .55;
}

/* =========================================================
   Reveal-on-scroll + misc motion utilities
   ========================================================= */
[data-reveal]{
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .8s var(--ease-soft), transform .8s var(--ease-soft);
}
[data-reveal].in-view{
  opacity: 1;
  transform: translateY(0);
}
[data-reveal-group] > *{ transition-delay: calc(var(--i, 0) * 90ms); }

[data-reveal="left"]{ transform: translateX(-32px); }
[data-reveal="left"].in-view{ transform: translateX(0); }
[data-reveal="right"]{ transform: translateX(32px); }
[data-reveal="right"].in-view{ transform: translateX(0); }
[data-reveal="scale"]{ transform: scale(.92); }
[data-reveal="scale"].in-view{ transform: scale(1); }

@media (prefers-reduced-motion: reduce){
  [data-reveal]{ opacity: 1; transform: none; transition: none; }
}

@keyframes floatY{ 0%,100%{ transform: translateY(0); } 50%{ transform: translateY(-10px); } }
@keyframes floatYSlow{ 0%,100%{ transform: translateY(0) rotate(0deg); } 50%{ transform: translateY(-16px) rotate(2deg); } }
@keyframes spin{ to{ transform: rotate(360deg); } }
@keyframes spinSlow{ to{ transform: rotate(360deg); } }
@keyframes pulseGlow{
  0%,100%{ opacity: .55; transform: scale(1); }
  50%{ opacity: .9; transform: scale(1.06); }
}
@keyframes marqueeScroll{
  from{ transform: translateX(0); }
  to{ transform: translateX(-50%); }
}
@keyframes shimmer{
  0%{ background-position: -200% 0; }
  100%{ background-position: 200% 0; }
}
@keyframes ticker-blink{
  0%,100%{ opacity: 1; } 50%{ opacity: .25; }
}
@keyframes drawLine{ from{ stroke-dashoffset: var(--len, 400); } to{ stroke-dashoffset: 0; } }

/* =========================================================
   Utility
   ========================================================= */
.visually-hidden{
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}
.text-center{ text-align: center; }
.mt-0{ margin-top: 0 !important; }
.on-dark{ color: #fff; }