/* =============================================================
   VISIONWAVE TECHNOLOGY — Core Design System
   Dark • Futuristic • Glass • Neon • Premium
   ============================================================= */

/* ---------- 1. Design Tokens ---------- */
:root {
  /* Brand palette */
  --c-primary:      #00E5FF;
  --c-secondary:    #6C63FF;
  --c-accent:       #00FFB3;
  --c-hover:        #18FFFF;

  /* Surfaces */
  --bg:             #050816;
  --bg-section:     #0B1220;
  --card:           #111827;
  --card-2:         #0e1626;

  /* Text */
  --text:           #FFFFFF;
  --text-muted:     #94A3B8;
  --text-dim:       #64748B;

  /* Lines / borders */
  --line:           rgba(148, 163, 184, .14);
  --line-strong:    rgba(148, 163, 184, .28);

  /* Signature gradients */
  --grad: linear-gradient(135deg, #00E5FF 0%, #6C63FF 50%, #00FFB3 100%);
  --grad-soft: linear-gradient(135deg, rgba(0,229,255,.16), rgba(108,99,255,.16), rgba(0,255,179,.16));
  --grad-text: linear-gradient(120deg, #00E5FF, #6C63FF 45%, #00FFB3);

  /* Glass */
  --glass-bg: rgba(17, 24, 39, .55);
  --glass-brd: rgba(255, 255, 255, .08);
  --blur: 18px;

  /* Glow */
  --glow-primary: 0 0 40px rgba(0, 229, 255, .35);
  --glow-accent:  0 0 40px rgba(0, 255, 179, .30);

  /* Shadows */
  --shadow-sm: 0 4px 20px rgba(0,0,0,.35);
  --shadow-md: 0 18px 50px rgba(0,0,0,.45);
  --shadow-lg: 0 40px 90px rgba(0,0,0,.55);

  /* Typography */
  --f-display: 'Space Grotesk', 'Poppins', system-ui, sans-serif;
  --f-body:    'Inter', 'Manrope', system-ui, sans-serif;

  /* Fluid type scale */
  --fs-hero:  clamp(2.4rem, min(6.4vw, 8.6vh), 5.6rem);
  --fs-h1:    clamp(2.2rem, 5vw, 4rem);
  --fs-h2:    clamp(1.8rem, 3.6vw, 3rem);
  --fs-h3:    clamp(1.3rem, 2.2vw, 1.8rem);
  --fs-lead:  clamp(1.05rem, 1.5vw, 1.28rem);
  --fs-body:  1rem;
  --fs-sm:    .875rem;

  /* Spacing / rhythm */
  --container: 1240px;
  --gutter: clamp(1.2rem, 5vw, 2.4rem);
  --section-y: clamp(4.5rem, 10vw, 9rem);
  --radius: 20px;
  --radius-sm: 12px;
  --radius-lg: 30px;

  --ease: cubic-bezier(.22, 1, .36, 1);
  --ease-in-out: cubic-bezier(.65, .05, .36, 1);
}

/* ---------- 2. Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; overflow-x: hidden; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  /* Reveal elements must not stay hidden if their transition is suppressed */
  [data-reveal] { transition-duration: .001ms; }
  /* Note: heavy/interactive motion (particle canvas, tilt, magnetic cursor) is
     already disabled in JS via the reduceMotion check. Gentle continuous loops
     (brand marquee, ambient blobs, orb) are kept — they carry no vestibular risk. */
}
body {
  font-family: var(--f-body);
  font-size: var(--fs-body);
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg, video { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; }
ul { list-style: none; }
h1,h2,h3,h4 { font-family: var(--f-display); font-weight: 700; line-height: 1.08; letter-spacing: -.02em; }
::selection { background: rgba(0,229,255,.28); color: #fff; }

/* Custom scrollbar */
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: linear-gradient(var(--c-secondary), var(--c-primary)); border-radius: 10px; }

/* ---------- 3. Layout ---------- */
.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: var(--gutter); }
.section { position: relative; padding-block: var(--section-y); overflow: hidden; }
.section--tint { background: var(--bg-section); }
.grid { display: grid; gap: clamp(1rem, 2.5vw, 2rem); }

/* ---------- 4. Text utilities ---------- */
.gradient-text {
  background: var(--grad-text);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.eyebrow {
  display: inline-flex; align-items: center; gap: .55rem;
  font-family: var(--f-display); font-size: .82rem; font-weight: 600;
  letter-spacing: .18em; text-transform: uppercase; color: var(--c-primary);
  padding: .5rem 1rem; border-radius: 100px;
  border: 1px solid var(--line-strong); background: var(--glass-bg);
  backdrop-filter: blur(10px);
}
.eyebrow::before { content:''; width:7px; height:7px; border-radius:50%; background: var(--c-accent); box-shadow: var(--glow-accent); animation: pulse 2s infinite; }
.section-head { max-width: 720px; margin-bottom: clamp(2.5rem, 5vw, 4rem); }
.section-head.center { margin-inline: auto; text-align: center; }
.section-title { font-size: var(--fs-h2); margin: 1rem 0 .8rem; }
.section-sub { color: var(--text-muted); font-size: var(--fs-lead); }
.lead { color: var(--text-muted); font-size: var(--fs-lead); }

/* ---------- 5. Buttons ---------- */
.btn {
  position: relative; display: inline-flex; align-items: center; gap: .6rem;
  padding: .95rem 1.8rem; border-radius: 100px; font-family: var(--f-display);
  font-weight: 600; font-size: .98rem; letter-spacing: .01em;
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), background .35s;
  will-change: transform; overflow: hidden; isolation: isolate;
}
.btn svg { width: 18px; height: 18px; transition: transform .35s var(--ease); }
.btn:hover svg { transform: translateX(4px); }
.btn--primary { color: #04101a; background: var(--grad); box-shadow: var(--glow-primary); background-size: 200% 200%; }
.btn--primary:hover { transform: translateY(-3px); box-shadow: 0 12px 45px rgba(0,229,255,.5); background-position: 100% 0; }
.btn--ghost { color: #fff; border: 1px solid var(--line-strong); background: var(--glass-bg); backdrop-filter: blur(10px); }
.btn--ghost:hover { transform: translateY(-3px); border-color: var(--c-primary); box-shadow: var(--glow-primary); }
/* ripple layer */
.btn::after { content:''; position:absolute; inset:0; background: radial-gradient(circle at var(--rx,50%) var(--ry,50%), rgba(255,255,255,.35), transparent 45%); opacity:0; transition: opacity .5s; z-index:-1; }
.btn:active::after { opacity:1; transition:none; }

/* ---------- 6. Glass card ---------- */
.glass {
  background: var(--glass-bg); border: 1px solid var(--glass-brd);
  backdrop-filter: blur(var(--blur)); -webkit-backdrop-filter: blur(var(--blur));
  border-radius: var(--radius);
}
.card {
  position: relative; background: linear-gradient(160deg, var(--card), var(--card-2));
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: clamp(1.4rem, 3vw, 2.1rem); overflow: hidden;
  transition: transform .5s var(--ease), border-color .5s, box-shadow .5s;
}
.card::before {
  content:''; position:absolute; inset:0; border-radius: inherit; padding:1px;
  background: var(--grad); -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude; opacity:0; transition: opacity .5s;
}
.card:hover { transform: translateY(-8px); box-shadow: var(--shadow-md); }
.card:hover::before { opacity:.6; }

/* ---------- 7. Decorative backgrounds ---------- */
.bg-grid {
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 60px 60px;
  -webkit-mask: radial-gradient(ellipse 80% 60% at 50% 0%, #000 40%, transparent 100%);
  mask: radial-gradient(ellipse 80% 60% at 50% 0%, #000 40%, transparent 100%);
  opacity: .5;
}
.blob {
  position: absolute; border-radius: 50%; filter: blur(90px);
  opacity: .5; pointer-events: none; z-index: 0; animation: drift 18s ease-in-out infinite;
}
.blob--1 { width: 420px; height: 420px; background: radial-gradient(circle, rgba(0,229,255,.5), transparent 70%); }
.blob--2 { width: 380px; height: 380px; background: radial-gradient(circle, rgba(108,99,255,.5), transparent 70%); animation-delay: -6s; }
.blob--3 { width: 320px; height: 320px; background: radial-gradient(circle, rgba(0,255,179,.4), transparent 70%); animation-delay: -12s; }
.noise {
  position: fixed; inset: 0; z-index: 9998; pointer-events: none; opacity: .035; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- 8. Keyframes ---------- */
@keyframes pulse { 0%,100%{ transform:scale(1); opacity:1;} 50%{ transform:scale(1.5); opacity:.5;} }
@keyframes drift { 0%,100%{ transform:translate(0,0) scale(1);} 33%{ transform:translate(40px,-30px) scale(1.1);} 66%{ transform:translate(-30px,25px) scale(.95);} }
@keyframes gradient-move { 0%{ background-position:0% 50%;} 50%{ background-position:100% 50%;} 100%{ background-position:0% 50%;} }
@keyframes float-y { 0%,100%{ transform:translateY(0);} 50%{ transform:translateY(-14px);} }
@keyframes marquee { from{ transform:translateX(0);} to{ transform:translateX(-50%);} }
@keyframes spin-slow { to { transform: rotate(360deg); } }

/* ---------- 9. Scroll reveal ---------- */
[data-reveal] { opacity: 0; transform: translateY(38px); transition: opacity .9s var(--ease), transform .9s var(--ease); will-change: transform, opacity; }
[data-reveal].in { opacity: 1; transform: none; }
[data-reveal="left"]  { transform: translateX(-48px); }
[data-reveal="right"] { transform: translateX(48px); }
[data-reveal="scale"] { transform: scale(.9); }
[data-reveal].in[data-reveal] { transform: none; }
[data-delay="1"]{ transition-delay:.1s;} [data-delay="2"]{ transition-delay:.2s;}
[data-delay="3"]{ transition-delay:.3s;} [data-delay="4"]{ transition-delay:.4s;}
[data-delay="5"]{ transition-delay:.5s;} [data-delay="6"]{ transition-delay:.6s;}

/* =============================================================
   Component styles live in css/components.css
   ============================================================= */