/* ============================================================
   AVDI -- Design System
   BRUTALIST. Robot clothing for every platform. avdi.ai
   ============================================================ */

/* === RESET === */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 300;
  line-height: 1.6;
  color: var(--chalk);
  background: var(--black);
  overflow-x: hidden;
  min-height: 100vh;
}

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
}

input, button, textarea, select {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 900;
  line-height: 0.88;
  text-transform: uppercase;
  letter-spacing: -0.04em;
}


/* === CUSTOM PROPERTIES === */
:root {

  /* --- Palette: Stark black/white only --- */
  --black:        #000000;
  --near-black:   #050505;
  --dark:         #0a0a0a;
  --carbon:       #0e0e0e;
  --graphite:     #161616;
  --rule:         rgba(255, 255, 255, 0.06);
  --border:       rgba(255, 255, 255, 0.08);
  --border-mid:   rgba(255, 255, 255, 0.15);
  --border-hard:  rgba(255, 255, 255, 0.25);
  --gray:         #444444;
  --silver:       #777777;
  --bone:         #b0b0b0;
  --chalk:        #d0d0d0;
  --white:        #ffffff;

  /* Tonal -- barely there */
  --tonal:        #020204;
  --tonal-warm:   #030303;
  --tonal-cold:   #010108;
  --tonal-surface:#0b0b0b;
  --tonal-elevated:#121212;

  /* Accent -- neon used as a scalpel */
  --neon:         #32FF00;
  --neon-dim:     rgba(50, 255, 0, 0.06);
  --neon-glow:    rgba(50, 255, 0, 0.25);
  --neon-muted:   #28CC00;
  --neon-whisper: rgba(50, 255, 0, 0.08);
  --amber:        #FF6B00;
  --amber-dim:    rgba(255, 107, 0, 0.1);

  /* --- Typography --- */
  --font-display: 'Helvetica Neue', 'Arial', 'Liberation Sans', sans-serif;
  --font-body:    'Inter', 'Helvetica Neue', 'Arial', sans-serif;
  --font-mono:    'JetBrains Mono', 'SF Mono', 'Consolas', monospace;

  /* --- Spacing --- */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;
  --space-48: 12rem;
  --space-64: 16rem;

  /* Section rhythm -- dramatic contrast between dense and empty */
  --section-tight:    clamp(3rem, 6vw, 5rem);
  --section-standard: clamp(6rem, 12vw, 10rem);
  --section-spacious: clamp(10rem, 20vw, 18rem);
  --section-dramatic: clamp(16rem, 30vw, 28rem);

  /* --- Motion --- */
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --dur: 150ms;
  --dur-slow: 400ms;

  /* --- Z-Index --- */
  --z-content:      1;
  --z-overlay:     10;
  --z-nav:        100;
  --z-mobile-menu: 500;
  --z-loader:    9999;

  /* --- Width --- */
  --content-max:    1400px;
  --content-narrow: 800px;
  --content-wide:   1440px;
  --content-edge:   1800px;
  --content-bleed:  2200px;
}


/* === SCROLL PROGRESS === */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  background: var(--neon);
  z-index: 10000;
  transform-origin: left;
  transform: scaleX(0);
  width: 100%;
}


/* === TYPE SCALE -- BRUTALIST === */

.type-display-mega {
  font-family: var(--font-display);
  font-size: clamp(6rem, 18vw, 20rem);
  font-weight: 900;
  letter-spacing: -0.06em;
  line-height: 0.78;
  color: var(--white);
  text-transform: uppercase;
}

.type-display-xl {
  font-family: var(--font-display);
  font-size: clamp(5rem, 14vw, 16rem);
  font-weight: 900;
  letter-spacing: -0.05em;
  line-height: 0.80;
  color: var(--white);
  text-transform: uppercase;
}

.type-display-lg {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 9vw, 10rem);
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 0.85;
  color: var(--white);
  text-transform: uppercase;
}

.type-display-md {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 0.90;
  color: var(--white);
  text-transform: uppercase;
}

.type-display-sm {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 3vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 0.92;
  color: var(--white);
  text-transform: uppercase;
}

.type-kicker {
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  font-weight: 400;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--neon);
  opacity: 0.6;
}

.type-body-lg {
  font-family: var(--font-body);
  font-size: clamp(1rem, 1.4vw, 1.25rem);
  font-weight: 300;
  line-height: 1.65;
  color: var(--chalk);
}

.type-body {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 300;
  line-height: 1.7;
  color: var(--bone);
}

.type-body-sm {
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 300;
  line-height: 1.6;
  color: var(--silver);
}

.type-mono-sm {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  color: var(--gray);
}


/* === LAYOUT === */

.container {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--space-8);
}

.container-narrow {
  max-width: var(--content-narrow);
  margin: 0 auto;
  padding: 0 var(--space-8);
}

.container-wide {
  max-width: var(--content-edge);
  margin: 0 auto;
  padding: 0 var(--space-8);
}

.container-bleed {
  max-width: var(--content-bleed);
  margin: 0 auto;
  padding: 0 var(--space-4);
}


/* === BRUTALIST DIVIDERS === */
.divider-hard {
  border: none;
  height: 1px;
  background: var(--white);
  opacity: 0.12;
}

.divider-neon {
  border: none;
  height: 2px;
  background: var(--neon);
  opacity: 0.4;
}

.divider-thick {
  border: none;
  height: 4px;
  background: var(--white);
}


/* === REVEAL ANIMATION === */

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}

.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}


/* === SELECTION === */

::selection {
  background: var(--neon);
  color: var(--black);
}


/* === FOCUS === */

:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 2px;
}


/* === SCROLLBAR === */

::-webkit-scrollbar {
  width: 3px;
}

::-webkit-scrollbar-track {
  background: var(--black);
}

::-webkit-scrollbar-thumb {
  background: var(--graphite);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--neon);
}


/* === BRUTALIST UTILITY CLASSES === */

.text-neon { color: var(--neon); }
.text-white { color: var(--white); }
.text-silver { color: var(--silver); }
.text-gray { color: var(--gray); }
.bg-black { background: var(--black); }
.bg-carbon { background: var(--carbon); }
.bg-white { background: var(--white); color: var(--black); }

.border-top { border-top: 1px solid var(--border); }
.border-bottom { border-bottom: 1px solid var(--border); }
.border-hard { border: 1px solid var(--white); }

.uppercase { text-transform: uppercase; }
.mono { font-family: var(--font-mono); }
.display { font-family: var(--font-display); }

.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mt-8 { margin-top: var(--space-8); }
.mb-8 { margin-bottom: var(--space-8); }
.mt-16 { margin-top: var(--space-16); }
.mb-16 { margin-bottom: var(--space-16); }

/* Brutalist block quote */
.brutalist-quote {
  border-left: 4px solid var(--neon);
  padding: var(--space-6) var(--space-8);
  margin: var(--space-8) 0;
  background: var(--carbon);
}

.brutalist-quote p {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.5vw, 2rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--white);
  text-transform: uppercase;
}

/* Oversized number */
.stat-huge {
  font-family: var(--font-display);
  font-size: clamp(5rem, 12vw, 12rem);
  font-weight: 900;
  line-height: 0.85;
  letter-spacing: -0.05em;
  color: var(--white);
}

/* Dense text block */
.text-dense {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  line-height: 1.8;
  letter-spacing: 0.02em;
  color: var(--bone);
  max-width: 65ch;
}

/* Grid-breaking offset */
.offset-left { margin-left: -5vw; }
.offset-right { margin-right: -5vw; }