/* =========================================================
   SAITECH ULTRA BASE SYSTEM
========================================================= */


/* =========================================================
   1. DESIGN TOKENS (LUXURY SYSTEM CORE)
========================================================= */

:root {

  /* ===================== COLOR SYSTEM ===================== */
  --bg: #0a0a0a;
  --bg-soft: #111;

  --text: #f5f5f5;
  --text-dim: rgba(255,255,255,0.68);
  --text-muted: rgba(255,255,255,0.45);

  --line: rgba(255,255,255,0.08);
  --line-strong: rgba(255,255,255,0.18);

  /* Accent (refined industrial gold) */
  --accent: #c8a96a;
  --accent-soft: rgba(200,169,106,0.2);

  /* ===================== TYPOGRAPHY SYSTEM ===================== */
  --font-main: "Inter", system-ui, -apple-system, sans-serif;
  --font-display: "Neue Montreal", "Inter", sans-serif;

  /* ===================== SPACING SCALE (8pt system) ===================== */
  --space-1: 8px;
  --space-2: 12px;
  --space-3: 16px;
  --space-4: 24px;
  --space-5: 40px;
  --space-6: 64px;
  --space-7: 96px;
  --space-8: 140px;

  /* =========================================================
     FLUID SPACING SYSTEM (COVERS ALL DEVICES + ZOOM SAFETY)
  ========================================================= */

  --space-3xs: clamp(2px, 0.2vw, 4px);
  --space-2xs: clamp(4px, 0.4vw, 8px);
  --space-xs: clamp(8px, 0.6vw, 12px);
  --space-sm: clamp(12px, 1vw, 20px);
  --space-md: clamp(20px, 2vw, 40px);
  --space-lg: clamp(40px, 4vw, 80px);
  --space-xl: clamp(80px, 6vw, 140px);
  --space-2xl: clamp(120px, 8vw, 200px);
  --space-3xl: clamp(160px, 12vw, 260px);

  /* =========================================================
     FLUID TYPOGRAPHY SCALE (VERY IMPORTANT FOR ZOOM)
  ========================================================= */

  --text-xs: clamp(10px, 0.6vw, 12px);
  --text-sm: clamp(12px, 0.8vw, 14px);
  --text-md: clamp(14px, 1vw, 18px);
  --text-lg: clamp(18px, 1.3vw, 22px);
  --text-xl: clamp(22px, 1.8vw, 28px);
  --text-2xl: clamp(28px, 2.5vw, 40px);
  --text-3xl: clamp(36px, 3vw, 56px);
  --text-4xl: clamp(48px, 4vw, 72px);
  --text-5xl: clamp(60px, 5vw, 96px);

  /* =========================================================
     LAYOUT CONSTRAINTS (CRITICAL FOR ULTRAWIDE)
  ========================================================= */

  --container-max: 1440px;
  --container-wide: 1760px;

  /* =========================================================
     SAFE ZOOM CONTROL (PREVENTS BREAKING LAYOUT)
  ========================================================= */

  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 28px;
  --radius-xl: 40px;

  /* ===================== BORDER RADIUS ===================== */
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 28px;

  /* ===================== MOTION SYSTEM ===================== */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-soft: cubic-bezier(0.4, 0, 0.2, 1);
}


/* =========================================================
   2. RESET (CLEAN FOUNDATION)
========================================================= */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  width: 100%;
  height: 100%;
  scroll-behavior: auto; /* GSAP controls scrolling */
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-main);
  letter-spacing: -0.01em;
  overflow-x: hidden;
}


/* =========================================================
   3. TYPOGRAPHY SYSTEM (HIERARCHY FIXED)
========================================================= */

/* HEADINGS */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: -0.03em;
  color: var(--text);
}

/* HERO HEADING */
h1 {
  font-size: clamp(2.8rem, 6vw, 5.2rem);
  line-height: 1.05;
  letter-spacing: -0.04em;
}

/* SECTION HEADING */
h2 {
  font-size: clamp(2rem, 3vw, 3rem);
  line-height: 1.2;
}

/* SUB HEADINGS */
h3 {
  font-size: 1.4rem;
}

/* PARAGRAPHS (UNIFIED) */
p {
  font-size: 2rem;
  line-height: 1.7;
  color: var(--text-dim);
  max-width: 70ch;
}

/* SMALL TEXT LABELS */
.label {
  font-size: 0.75rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-muted);
}


/* =========================================================
   4. GLOBAL ELEMENTS
========================================================= */

/* LINKS */
a {
  color: inherit;
  text-decoration: none;
  transition: color 0.3s var(--ease-soft);
}

a:hover {
  color: var(--accent);
}

/* IMAGES */
img {
  max-width: 100%;
  display: block;
  border-radius: var(--radius-md);
  filter: saturate(0.92) contrast(1.05);
}

/* SELECTION */
::selection {
  background: var(--text);
  color: var(--bg);
}


/* =========================================================
   5. ACCESSIBILITY + PERFORMANCE
========================================================= */

/* remove focus chaos but keep usability */
:focus {
  outline: none;
}

/* smoother rendering */
body {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}


/* =========================================================
   6. BACKGROUND DEPTH LAYER (AMBIENT LUXURY FIELD)
========================================================= */

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;

  background:
    radial-gradient(circle at 20% 10%, rgba(255,255,255,0.04), transparent 40%),
    radial-gradient(circle at 80% 80%, rgba(200,169,106,0.06), transparent 45%);
}

.nav__logo {
  display: flex;
  align-items: center;
}

.nav__logo-img {
  height: 60px;
  width: auto;
  display: block;
  object-fit: contain;
}

.nav__logo-img {
  height: 100px;
}