/* =========================================================
   BASE.CSS – základ projektu (reset, layout, typografia)
   ŽIADNE FARBY, ŽIADNE BUTTONY, ŽIADNE KOMPONENTY
   ========================================================= */

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

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

body,
h1,
h2,
h3,
h4,
h5,
h6,
p,
figure,
blockquote,
dl,
dd {
  margin: 0;
}

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

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

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

/* ---------- ROOT / TYPO ---------- */
:root {
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", Roboto, Inter, Helvetica, Arial, sans-serif;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;

  --max-width: 1200px;
}

/* ---------- BODY ---------- */
body {
  font-family: var(--font-sans);
  line-height: 1.5;
  font-size: 16px;
  min-height: 100vh;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* --- SAFARI LAYOUT STABILITY FIX ---
   Forces consistent reflow without inspector resize
----------------------------------- */
html, body {
  height: 100%;
}

/* ---------- TYPOGRAFIA ---------- */
h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  line-height: 1.15;
}

h2 {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  line-height: 1.2;
}

h3 {
  font-size: 1.25rem;
  line-height: 1.3;
}

p {
  font-size: 1rem;
  line-height: 1.65;
}

h1,
h2,
h3 {
  font-weight: 700;
  letter-spacing: -0.02em;
}

/* ---------- LAYOUT ---------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--space-5);
}

.section {
  padding-block: var(--space-8);
}

.section-alt {
  padding-block: var(--space-8);
}

.grid {
  display: grid;
  gap: var(--space-6);
}

.split {
  display: grid;
  gap: var(--space-7);
}

@media (min-width: 768px) {
  .split {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }
}

/* ---------- UTILITY ---------- */
.muted {
  opacity: 0.7;
}

.lead {
  font-size: 1.1rem;
  line-height: 1.6;
}

.micro {
  font-size: 0.85rem;
  opacity: 0.65;
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  padding: var(--space-2) var(--space-3);
  z-index: 100;
}

.skip-link:focus {
  top: 0;
}

/* =========================================================
   RESPONSIVE LAYOUT TWEAKS (BASE)
   - spacing only (no colors/components)
   ========================================================= */

/* Tablet */
@media (max-width: 1024px) {
  .container {
    padding-inline: var(--space-4);
  }

  .section,
  .section-alt {
    padding-block: var(--space-7);
  }
}

/* Mobile */
@media (max-width: 768px) {
  .container {
    padding-inline: var(--space-4);
  }

  .section,
  .section-alt {
    padding-block: var(--space-6);
  }

  .grid {
    gap: var(--space-5);
  }

  .split {
    gap: var(--space-6);
  }
}

/* Small mobile */
@media (max-width: 480px) {
  .container {
    padding-inline: var(--space-3);
  }

  .section,
  .section-alt {
    padding-block: var(--space-5);
  }
}

/* Prevent Safari double-spacing from sticky/fixed headers */
main {
  display: block;
}