/* ===== Design tokens — Palette A: Kulsort + signalrød (dark/tech base) ===== */
:root {
  --color-bg: #0a0a0d;
  --color-bg-alt: #111114;
  --color-surface: #17171b;
  --color-surface-2: #1c1c21;
  --color-ink: #f4f4f5;
  --color-ink-soft: #a6a8ae;
  --color-accent: #e0202b;
  --color-accent-dark: #ff3b46;
  --color-border: #2a2a30;
  --color-white: #ffffff;

  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --container-max: 1180px;
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-5: 3rem;
  --space-6: 4.5rem;
  --space-7: 7rem;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 12px 32px rgba(0, 0, 0, 0.45);
  --shadow-glow: 0 0 0 1px rgba(224, 32, 43, 0.25), 0 8px 30px rgba(224, 32, 43, 0.15);

  --grid-pattern: radial-gradient(rgba(255, 255, 255, 0.055) 1px, transparent 1px);
  --grid-size: 26px;
}

*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-ink);
  background:
    var(--grid-pattern),
    var(--color-bg);
  background-size: var(--grid-size) var(--grid-size), auto;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: inherit; }

h1, h2, h3, h4 {
  margin: 0 0 var(--space-2);
  line-height: 1.15;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-white);
}

h1 { font-size: clamp(2.1rem, 4.5vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.3rem); }
h3 { font-size: 1.15rem; }

p { margin: 0 0 var(--space-3); }

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-3);
  position: relative;
}

section {
  padding: var(--space-7) 0;
  position: relative;
}

.section-alt {
  background: var(--color-bg-alt);
}

.eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-2);
}

.section-head {
  max-width: 640px;
  margin: 0 0 var(--space-5);
}

.section-head p {
  color: var(--color-ink-soft);
  font-size: 1.05rem;
}

.text-center { text-align: center; margin-left: auto; margin-right: auto; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.6rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.98rem;
  text-decoration: none;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease, border-color 0.18s ease;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-white);
  box-shadow: 0 0 0 0 rgba(224, 32, 43, 0.5);
}
.btn-primary:hover {
  background: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(224, 32, 43, 0.35);
}

.btn-secondary {
  background: transparent;
  color: var(--color-ink);
  border-color: var(--color-border);
}
.btn-secondary:hover {
  background: var(--color-surface-2);
  border-color: var(--color-ink-soft);
  transform: translateY(-2px);
}

.btn-on-dark {
  border-color: rgba(255,255,255,0.3);
  color: var(--color-white);
}
.btn-on-dark:hover {
  background: rgba(255,255,255,0.12);
}

a:focus-visible, button:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

/* Placeholder styling */
.placeholder {
  border: 1.5px dashed #3a3a41;
  background: rgba(255, 255, 255, 0.02);
  color: var(--color-ink-soft);
  border-radius: var(--radius-md);
}

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* ===== Scroll reveal animations ===== */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

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

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

@media (max-width: 720px) {
  section { padding: var(--space-5) 0; }
}