/* ==========================================================================
   NFSDN LLC - Premium Performance Retail Styles (v3)
   ========================================================================== */

:root {
  --color-bg-base: #000000;
  --color-bg-surface: #0a0a0a;
  --color-bg-elevated: #111111;
  --color-text-primary: #ffffff;
  --color-text-secondary: #999999;
  --color-accent: #ccff00;
  --color-accent-hover: #e0ff4d;
  --color-border: #222222;

  --font-sans: 'Inter', -apple-system, sans-serif;
  --font-display: 'Teko', 'Oswald', 'Impact', sans-serif;

  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --ease-spring: cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: var(--font-sans);
  background: var(--color-bg-base);
  color: var(--color-text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  line-height: 1;
  letter-spacing: 0.03em;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; object-fit: cover; }

/* Grid Layouts */
.container { max-width: 1440px; margin: 0 auto; padding: 0 2rem; }
.section { padding: 8rem 0; }

.grid-12 { display: grid; grid-template-columns: repeat(12, 1fr); gap: 2rem; }
.col-4 { grid-column: span 4; }
.col-6 { grid-column: span 6; }
.col-8 { grid-column: span 8; }
.col-12 { grid-column: span 12; }

.grid-auto { display: grid; grid-template-columns: repeat(auto-fit, minmax(350px, 1fr)); gap: 2rem; }
.grid-bento { display: grid; grid-template-columns: repeat(4, 1fr); grid-auto-rows: 350px; gap: 2rem; }
.bento-large { grid-column: span 2; grid-row: span 2; }
.bento-wide { grid-column: span 2; grid-row: span 1; }
.bento-tall { grid-column: span 1; grid-row: span 2; }

/* Typography */
.text-accent { color: var(--color-accent); }
.text-secondary { color: var(--color-text-secondary); }
.section-title { font-size: clamp(3rem, 6vw, 6rem); margin-bottom: 2rem; }

/* Header */
.site-header {
  position: fixed; top: 0; width: 100%; padding: 1.5rem 2rem;
  display: flex; justify-content: space-between; align-items: center;
  z-index: 100;
  background: linear-gradient(to bottom, rgba(0,0,0,0.9), rgba(0,0,0,0));
  backdrop-filter: blur(10px);
}
.logo { font-family: var(--font-display); font-size: 2.5rem; letter-spacing: 0.1em; color: var(--color-accent); }
.nav-links { display: flex; gap: 2rem; }
.nav-links a { font-size: 0.9rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; transition: color 0.3s; }
.nav-links a:hover, .nav-links a.active { color: var(--color-accent); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 1.2rem 3rem; font-family: var(--font-display); font-size: 1.5rem;
  color: #000; background: var(--color-accent);
  text-transform: uppercase; border: none; cursor: pointer;
  position: relative; overflow: hidden;
  transition: transform 0.3s var(--ease-out-expo);
}
.btn::before {
  content: ''; position: absolute; top: 0; left: -100%; width: 100%; height: 100%;
  background: rgba(255,255,255,0.2); transform: skewX(-20deg); transition: left 0.5s var(--ease-out-expo);
}
.btn:hover::before { left: 100%; }

/* Form */
.form-input {
  width: 100%; padding: 1.2rem; background: var(--color-bg-base); border: 1px solid var(--color-border);
  color: #fff; font-family: inherit; margin-bottom: 1.5rem; transition: border-color 0.3s;
}
.form-input:focus { border-color: var(--color-accent); outline: none; }
.form-label { display: block; font-size: 0.8rem; text-transform: uppercase; color: var(--color-text-secondary); margin-bottom: 0.5rem; }

/* Footer */
.site-footer { padding: 4rem 2rem; border-top: 1px solid var(--color-border); text-align: center; }

/* --- EFFECT CLASSES --- */

/* 1. Sectional narrative reveal (Clip-path Wipe) */
.reveal-wipe {
  opacity: 0; clip-path: polygon(0 100%, 100% 100%, 100% 100%, 0 100%);
  transform: translateY(30px);
  transition: opacity 1.2s var(--ease-out-expo), clip-path 1.2s var(--ease-out-expo), transform 1.2s var(--ease-out-expo);
}
.reveal-wipe.is-visible {
  opacity: 1; clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
  transform: translateY(0);
}

/* 2. Direction-aware product interactions (with Glare) */
.direction-card {
  position: relative; overflow: hidden; background: var(--color-bg-surface);
  border: 1px solid var(--color-border); transform-style: preserve-3d;
  will-change: transform; border-radius: 4px;
}
.direction-card .glare {
  position: absolute; top: 0; left: 0; width: 100%; height: 100%;
  background: radial-gradient(circle at 50% 50%, rgba(255,255,255,0.15) 0%, transparent 60%);
  opacity: 0; pointer-events: none; transition: opacity 0.3s; mix-blend-mode: overlay; z-index: 10;
}
.direction-card:hover .glare { opacity: 1; }
.direction-card-content {
  padding: 2rem; transform: translateZ(30px); /* Lift text in 3D space */
}

/* 3. Layered Parallax */
.hero { height: 100vh; display: flex; align-items: center; overflow: hidden; position: relative; }
.hero-bg { position: absolute; top: -10%; left: 0; width: 100%; height: 120%; z-index: -1; }
.hero-bg::after { content: ''; position: absolute; top:0; left:0; right:0; bottom:0; background: rgba(0,0,0,0.5); }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; }
.parallax-front { transform: translateZ(50px); }

/* 4. SVG Morph */
.svg-morph-container { position: relative; height: 150px; display: flex; justify-content: center; align-items: center; }
.svg-morph-path { fill: none; stroke: var(--color-accent); stroke-width: 2; transition: d 0.3s ease-out; }

/* 5. Magnetic Button wrapper */
.magnetic-wrap { display: inline-block; padding: 2rem; margin: -2rem; }

/* 6. Kinetic Typography (Split letters) */
.kinetic-text { display: inline-flex; flex-wrap: wrap; }
.kinetic-char {
  display: inline-block; opacity: 0;
  transform: translateY(100%) rotateX(-90deg);
  transform-origin: bottom center;
  transition: transform 0.8s var(--ease-out-expo), opacity 0.8s var(--ease-out-expo);
}
.kinetic-text.is-visible .kinetic-char { opacity: 1; transform: translateY(0) rotateX(0deg); }

/* 7. Focus Transitions (Accordion) */
.focus-group { display: flex; height: 600px; gap: 1rem; width: 100%; }
.focus-item {
  flex: 1; position: relative; overflow: hidden;
  transition: flex 0.8s var(--ease-out-expo), filter 0.8s var(--ease-out-expo);
  cursor: pointer; background: #000; border: 1px solid var(--color-border);
}
.focus-item img {
  position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover;
  opacity: 0.6; transition: transform 0.8s var(--ease-out-expo), opacity 0.8s;
}
.focus-content {
  position: absolute; bottom: 2rem; left: 2rem; right: 2rem; z-index: 2;
  transform: translateY(20px); opacity: 0; transition: all 0.6s var(--ease-out-expo);
}
.focus-title { font-size: 2.5rem; margin: 0; text-shadow: 0 4px 10px rgba(0,0,0,0.8); }
.focus-group:hover .focus-item { flex: 0.5; filter: grayscale(100%); }
.focus-group .focus-item:hover { flex: 3; filter: grayscale(0%); border-color: var(--color-accent); }
.focus-group .focus-item:hover img { transform: scale(1.05); opacity: 0.8; }
.focus-group .focus-item:hover .focus-content { transform: translateY(0); opacity: 1; }

/* 8. Page Transitions (SVG Sweep) */
.page-sweep {
  position: fixed; top: 0; left: 0; width: 100vw; height: 100vh;
  pointer-events: none; z-index: 9999;
}
.page-sweep path { fill: var(--color-accent); }

/* Helpers */
.mt-4 { margin-top: 4rem; }
.mb-2 { margin-bottom: 2rem; }

@media (max-width: 1024px) {
  .grid-bento { grid-template-columns: repeat(2, 1fr); }
  .bento-large, .bento-wide, .bento-tall { grid-column: span 2; grid-row: auto; }
  .focus-group { flex-direction: column; height: auto; }
  .focus-item { height: 200px; flex: none !important; width: 100%; }
}
@media (max-width: 768px) {
  .grid-12 { display: flex; flex-direction: column; }
  .nav-links { display: none; }
  .section-title { font-size: 3rem; }
}