/* ===================================================================
   Global CSS — PeCetOwiec
   Design tokens (CSS custom properties) + base styles
   =================================================================== */

/* ---------------------------------------------------------------
   1. Design Tokens
   --------------------------------------------------------------- */
:root {
  /* Colours — dark theme */
  --color-bg:             #0b0f1c;
  --color-background:     #0b0f1c;   /* alias used by legal/cookie components */
  --color-surface:        #111827;
  --color-secondary:      #131929;

  --color-primary:        #3b7bf6;
  --color-primary-text:   #ffffff;
  --color-accent:         #5a93f8;

  --color-text:           #e8eaf0;
  --color-text-muted:     rgba(232, 234, 240, 0.60);
  --color-text-secondary: rgba(232, 234, 240, 0.60); /* alias for cookie/legal components */

  --color-border:         rgba(255, 255, 255, 0.08);

  /* Typography */
  --font-heading: 'Merriweather', Georgia, serif;
  --font-body:    'Lato', system-ui, sans-serif;

  /* Spacing */
  --space-xs:  8px;
  --space-sm:  16px;
  --space-md:  24px;
  --space-lg:  32px;
  --space-xl:  48px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  --space-4xl: 96px;

  /* Layout */
  --container-max:    1200px;
  --section-padding:  clamp(4rem, 8vw, 7rem) 1.5rem;

  /* Shape */
  --radius: 8px;

  /* Motion */
  --transition:      0.25s ease;
  --transition-fast: 0.15s ease;
}

/* ---------------------------------------------------------------
   2. Reset / Base
   --------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  background-color: var(--color-bg);
  color: var(--color-text);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  line-height: 1.2;
  font-weight: 700;
}

ul, ol {
  list-style: none;
}

/* ---------------------------------------------------------------
   3. Layout
   --------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

/* ---------------------------------------------------------------
   4. Accessibility
   --------------------------------------------------------------- */
.skip-link {
  position: absolute;
  top: -100%;
  left: 0;
  padding: 0.75rem 1.5rem;
  background: var(--color-primary);
  color: #fff;
  font-family: var(--font-body);
  font-weight: 700;
  text-decoration: none;
  border-radius: 0 0 var(--radius) 0;
  z-index: 10000;
  transition: top var(--transition-fast);
}
.skip-link:focus {
  top: 0;
}

/* ---------------------------------------------------------------
   5. Buttons
   --------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition:
    background var(--transition),
    color var(--transition),
    border-color var(--transition),
    opacity var(--transition),
    transform var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
}
.btn-primary:hover,
.btn-primary:focus-visible {
  background: var(--color-accent);
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

.btn-secondary {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.btn-secondary:hover,
.btn-secondary:focus-visible {
  border-color: var(--color-primary);
  color: var(--color-primary);
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

/* ---------------------------------------------------------------
   6. Cards
   --------------------------------------------------------------- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: border-color var(--transition), transform var(--transition);
}
.card:hover {
  border-color: var(--color-primary);
}

/* ---------------------------------------------------------------
   7. Section Typography Utilities
   --------------------------------------------------------------- */
.section-label {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 0.75rem;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 900;
  color: var(--color-text);
  line-height: 1.15;
  margin-bottom: 1rem;
}

.section-intro {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  max-width: 600px;
}

/* ---------------------------------------------------------------
   8. Images
   --------------------------------------------------------------- */
.img-rounded {
  border-radius: var(--radius);
}

/* ---------------------------------------------------------------
   9. Background Utilities
   --------------------------------------------------------------- */
.bg-surface {
  background: var(--color-surface);
}

.bg-noise {
  background-color: var(--color-secondary);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
}

/* ---------------------------------------------------------------
   10. Section Padding
   --------------------------------------------------------------- */
.services,
.about {
  padding: var(--section-padding);
}

/* ---------------------------------------------------------------
   11. Scroll-reveal Animations
       JS (IntersectionObserver) adds class "visible" when in view
   --------------------------------------------------------------- */
.animate-on-scroll,
.animate-on-scroll-right,
.animate-on-scroll-left {
  opacity: 0;
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll {
  transform: translateY(24px);
}
.animate-on-scroll-right {
  transform: translateX(40px);
}
.animate-on-scroll-left {
  transform: translateX(-40px);
}

.animate-on-scroll.visible,
.animate-on-scroll-right.visible,
.animate-on-scroll-left.visible {
  opacity: 1;
  transform: none;
}