/* ==========================================================================
   1. SELF-HOSTED FONTS (Space Grotesk & Inter — Latin + Latin-Ext for "č")
   ========================================================================== */

/* Space Grotesk — Latin Extended (includes č U+010D) */
@font-face {
  font-family: "Space Grotesk";
  font-style: normal;
  font-display: swap;
  font-weight: 300 700;
  src: url("/assets/fonts/space-grotesk-latin-ext-wght-normal.woff2") format("woff2-variations");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

/* Space Grotesk — Latin */
@font-face {
  font-family: "Space Grotesk";
  font-style: normal;
  font-display: swap;
  font-weight: 300 700;
  src: url("/assets/fonts/space-grotesk-latin-wght-normal.woff2") format("woff2-variations");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* Inter — Latin Extended (includes č U+010D) */
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-display: swap;
  font-weight: 100 900;
  src: url("/assets/fonts/inter-latin-ext-wght-normal.woff2") format("woff2-variations");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

/* Inter — Latin */
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-display: swap;
  font-weight: 100 900;
  src: url("/assets/fonts/inter-latin-wght-normal.woff2") format("woff2-variations");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* ==========================================================================
   2. RESET & BASE DOCUMENT STYLES
   ========================================================================== */

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

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
  max-width: 100vw;
  background-color: var(--bg);
  color: var(--fg);
}

body {
  background-color: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  max-width: 100vw;
  width: 100%;
  transition:
    background-color 0.25s ease,
    color 0.25s ease;
}

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

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

a {
  color: inherit;
}

[hidden] {
  display: none !important;
}

/* ==========================================================================
   3. TYPOGRAPHY & ACCESSIBILITY HELPERS
   ========================================================================== */

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.15;
  color: var(--fg);
}

.mono,
code,
pre {
  font-family: var(--font-mono);
}

/* Accessible focus ring across all interactive elements */
:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 3px;
}

/* Skip to main content link */
.skip-link {
  position: fixed;
  top: -100px;
  left: 1rem;
  z-index: 10000;
  background-color: var(--red);
  color: #FFFFFF;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.625rem 1rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 1rem;
}

/* ==========================================================================
   4. LAYOUT HELPERS (1160px Container & 12-Col Grid)
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--section-pad-x);
}

.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 1.5rem;
}

/* ==========================================================================
   5. THEME TOGGLE BUTTON
   ========================================================================== */

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  min-width: 40px;
  min-height: 40px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background-color: var(--surface);
  color: var(--fg);
  cursor: pointer;
  transition:
    border-color 0.2s ease,
    color 0.2s ease,
    background-color 0.2s ease,
    transform 0.2s ease;
}

.theme-toggle:hover {
  border-color: var(--red);
  color: var(--red);
  transform: translateY(-1px);
}

.theme-toggle svg {
  width: 18px;
  height: 18px;
}

/* Show sun icon in dark theme (to switch to light), moon icon in light theme */
:root[data-theme="dark"] .theme-icon-moon {
  display: none;
}

:root[data-theme="light"] .theme-icon-sun {
  display: none;
}

/* ==========================================================================
   6. SCROLL REVEAL (400ms Fade & Rise, Staggered Children)
   ========================================================================== */

:root.js-reveal [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity 400ms cubic-bezier(0.22, 1, 0.36, 1),
    transform 400ms cubic-bezier(0.22, 1, 0.36, 1);
  transition-delay: calc(var(--reveal-index, 0) * 75ms);
}

:root.js-reveal [data-reveal].is-revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   7. REDUCED MOTION OVERRIDES
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  :root.js-reveal [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}