/* Reset + base (light theme) */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  font-family: var(--f-body);
  font-size: var(--fs-16);
  line-height: 1.6;
  color: var(--ln-text);
  background: var(--ln-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

::selection { background: var(--ln-violet); color: #fff; }

img, svg, video { max-width: 100%; display: block; }
button { font: inherit; cursor: pointer; background: none; border: 0; color: inherit; }
a { color: inherit; text-decoration: none; }
:focus-visible { outline: 2px solid var(--ln-violet); outline-offset: 3px; border-radius: 4px; }

/* Container */
.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 var(--s-5); }
@media (min-width: 768px) { .container { padding: 0 var(--s-6); } }
@media (min-width: 1100px) { .container { padding: 0 var(--s-7); } }
/* Large desktops: widen the canvas so 1920px+ screens don't read as a boxed page
   floating between two empty margins */
@media (min-width: 1680px) { :root { --container: 1460px; } }

/* Typography */
h1, h2, h3, h4 { font-family: var(--f-display); font-weight: 400; color: var(--ln-ink); letter-spacing: -0.015em; margin: 0; }
h1 { font-size: clamp(3rem, 9vw, 8rem); line-height: 0.96; }
h2 { font-size: clamp(2.25rem, 5.5vw, 4.5rem); line-height: 1.02; font-weight: 400; }
h3 { font-size: clamp(1.5rem, 2.6vw, 2.125rem); line-height: 1.15; font-weight: 500; }
h4 { font-size: var(--fs-22); line-height: 1.3; font-family: var(--f-body); font-weight: 700; letter-spacing: -0.005em; color: var(--ln-ink); }
em, .italic { font-style: italic; }
p  { margin: 0 0 var(--s-4); max-width: 65ch; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--f-body); font-weight: 600;
  font-size: var(--fs-12);
  letter-spacing: 0.28em; text-transform: uppercase;
  color: var(--ln-violet-deep);
  padding: 6px 14px;
  border: 1px solid var(--ln-border-3);
  border-radius: var(--r-pill);
  background: var(--ln-violet-soft);
}
.eyebrow .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--ln-violet);
  box-shadow: 0 0 0 0 rgba(143,83,255,0.7);
  animation: pulse 2.6s var(--ease-out) infinite;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(143,83,255,0.55); }
  70%  { box-shadow: 0 0 0 10px rgba(143,83,255,0); }
  100% { box-shadow: 0 0 0 0 rgba(143,83,255,0); }
}

.headline-gradient {
  background: var(--ln-grad-text);
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
}

.section { padding: clamp(80px, 11vw, 144px) 0; position: relative; }

.section-head { max-width: 760px; margin: 0 auto clamp(48px, 6vw, 88px); }
.section-head.center { text-align: center; }
.section-head.center p { margin-left: auto; margin-right: auto; }
.section-head p { color: var(--ln-text-muted); margin: var(--s-4) 0 0; font-size: var(--fs-18); }
.section-head .eyebrow { margin-bottom: var(--s-4); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 16px 26px;
  font-family: var(--f-body); font-weight: 600; font-size: var(--fs-16);
  border-radius: var(--r-pill);
  transition: transform var(--dur-fast) var(--ease-spring),
              box-shadow var(--dur-fast) var(--ease-out),
              background var(--dur-fast) var(--ease-out),
              color var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out);
  position: relative; isolation: isolate;
  min-height: 52px;
}

.btn-primary {
  color: #fff;
  background: var(--ln-grad);
  box-shadow: var(--shadow-violet);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 22px 50px rgba(143, 83, 255, 0.42); }
.btn-primary .arrow { transition: transform var(--dur-fast) var(--ease-out); }
.btn-primary:hover .arrow { transform: translateX(5px); }

.btn-outline {
  color: var(--ln-ink);
  border: 1.5px solid var(--ln-ink);
  background: transparent;
}
.btn-outline:hover { background: var(--ln-ink); color: #fff; transform: translateY(-3px); }

.btn-ghost {
  color: var(--ln-ink);
  border: 1.5px solid var(--ln-border-2);
  background: var(--ln-bg);
}
.btn-ghost:hover { border-color: var(--ln-violet); color: var(--ln-violet-deep); background: var(--ln-violet-faint); transform: translateY(-3px); }

.btn-link {
  padding: 0; gap: 8px; min-height: auto;
  font-weight: 600; color: var(--ln-violet-deep);
  position: relative;
}
.btn-link::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: -3px;
  height: 1.5px; background: var(--ln-violet);
  transform: scaleX(0.3); transform-origin: left;
  transition: transform var(--dur-med) var(--ease-out);
}
.btn-link:hover::after { transform: scaleX(1); }

/* Magnetic helper (JS adds .magnetic) */
.magnetic { will-change: transform; }

/* Card (light) */
.card {
  position: relative;
  background: var(--ln-surface);
  border: 1px solid var(--ln-border-2);
  border-radius: var(--r-xl);
  padding: var(--s-6);
  box-shadow: var(--shadow-1);
  transition: transform var(--dur-med) var(--ease-out),
              box-shadow var(--dur-med) var(--ease-out),
              border-color var(--dur-med) var(--ease-out);
  overflow: hidden;
}
.card:hover { border-color: var(--ln-border-3); transform: translateY(-4px); box-shadow: var(--shadow-2); }

/* Reveal-on-scroll */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity var(--dur-slow) var(--ease-out), transform var(--dur-slow) var(--ease-out); }
.reveal.is-visible { opacity: 1; transform: none; }
.reveal-delay-1 { transition-delay: 80ms; }
.reveal-delay-2 { transition-delay: 160ms; }
.reveal-delay-3 { transition-delay: 240ms; }
.reveal-delay-4 { transition-delay: 320ms; }

/* Text-reveal stagger (word-by-word) */
.text-reveal .word { display: inline-block; overflow: hidden; line-height: 1; vertical-align: top; padding: 0.06em 0; }
.text-reveal .word span { display: inline-block; transform: translateY(110%); transition: transform 0.9s var(--ease-out); }
.text-reveal.is-visible .word span { transform: translateY(0); }
.text-reveal .word + .word { margin-left: 0.22em; }
.text-reveal .word:nth-child(2) span { transition-delay: 60ms; }
.text-reveal .word:nth-child(3) span { transition-delay: 120ms; }
.text-reveal .word:nth-child(4) span { transition-delay: 180ms; }
.text-reveal .word:nth-child(5) span { transition-delay: 240ms; }
.text-reveal .word:nth-child(6) span { transition-delay: 300ms; }
.text-reveal .word:nth-child(7) span { transition-delay: 360ms; }
.text-reveal .word:nth-child(8) span { transition-delay: 420ms; }
.text-reveal .word:nth-child(9) span { transition-delay: 480ms; }
.text-reveal .word:nth-child(10) span { transition-delay: 540ms; }

/* Grid helpers */
.grid { display: grid; gap: var(--s-5); }
@media (min-width: 768px) {
  .grid-2 { grid-template-columns: 1fr 1fr; }
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
}

/* Visually hidden */
.sr-only { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

/* Inverted band (dark island on white canvas) */
.dark-band {
  background: var(--ln-grad-dark);
  color: rgba(255,255,255,0.86);
  border-radius: var(--r-2xl);
  position: relative;
  overflow: hidden;
}
.dark-band h2, .dark-band h3, .dark-band h4 { color: #fff; }
.dark-band .eyebrow { color: var(--ln-violet-light); background: rgba(200,168,255,0.10); border-color: rgba(200,168,255,0.25); }
.dark-band .eyebrow .dot { background: var(--ln-violet-light); }