:root {
  --timing: cubic-bezier(0.23, 1, 0.32, 1);
  --transition-curve: cubic-bezier(0.55, 0.085, 0, 0.99);
  --transition-time: 100ms;
  --transition-time--slow: 600ms;
  --transition-time--slower: 1000ms;

  --color-black: #171717;
  --color-p: #494731;
  --color-bg: #ffffff;
  --color-gray: #5d6169;

  --color-link: #171717;

  --space-unit: 1rem;
  --space-xxs: calc(0.25 * var(--space-unit)); /* 4px */
  --space-xs: calc(0.5 * var(--space-unit)); /* 8px */
  --space-sm: calc(0.75 * var(--space-unit)); /* 12px */
  --space-md: calc(1.25 * var(--space-unit)); /* 20px */
  --space-lg: calc(2 * var(--space-unit)); /* 32px */
  --space-xl: calc(4 * var(--space-unit)); /* 64px */
  --space-xxl: calc(8 * var(--space-unit)); /* 128px */

  --fs-0: calc(5 * var(--space-unit));
  --fs-1: calc(3 * var(--space-unit));
  --fs-2: calc(1.5 * var(--space-unit));
  --fs-3: calc(1.25 * var(--space-unit));
  --fs-4: calc(1 * var(--space-unit));

  --fw-light: 300;
  --fw-normal: 400;
  --fw-medium: 600;
  --fw-bold: 800;

  --border-radius: 0px;

  --max-width: 56rem;

  --lh-default: 1.4;
  --lh-tight: 1.1;
  --lh-lose: 1.6;

  --f-body: "objektiv-variable", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}

/* Font loading strategy to prevent FOUT */
html {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}

html.fonts-loaded {
  font-family: "objektiv-variable", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}

body {
  font-size: var(--space-unit);
  font-family: inherit;
  line-height: 1.4;
  background-color: var(--color-bg);
  color: var(--color-black);
  max-width: var(--max-width);
  padding: var(--space-xxl) var(--space-unit);
  margin: auto;

  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;

  opacity: 0;
}

header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

header svg.logo {
  margin-bottom: var(--space-md);
  color: var(--color-black);
}

a {
  color: var(--color-link);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

h1 {
  font-size: clamp(3.5rem, 4vw + 1.5rem, var(--fs-0));
  line-height: var(--lh-tight);
  font-weight: var(--fw-light);
  font-style: italic;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-xxl);
}

h2 {
  padding-top: var(--space-xl);
  padding-bottom: var(--space-sm);
  font-size: var(--fs-4);
  font-weight: var(--fw-medium);
  color: var(--color-black);
}

ul {
  padding-bottom: var(--space-md);
}

h3 {
  margin-top: var(--space-xs);
  font-size: var(--fs-2);
  color: var(--color-p);
}

section {
  margin-top: var(--space-lg);

}

p {
  color: var(--color-black);
  padding-bottom: var(--space-md);
  line-height: var(--lh-lose);
  font-size: var(--fs-4);
  max-width: 64ch;
  letter-spacing: -0.1px;
}

li {
  list-style: none;
  line-height: var(--lh-lose);
  color: var(--color-p);
  font-size: var(--fs-3);
}

li span {
  margin-right: 0.25em;
  font-weight: var(--fw-medium);
}

.support {
  margin-top: var(--space-xl);
}

footer {
  text-align: center;
  margin: var(--space-xxl) 0;
}

footer img {
  opacity: .1;
}

footer a {
  color: inherit;
}

.gallery {
  display: flex;
  flex-direction: row;
  gap: var(--space-lg);

  margin-top: var(--space-xl);
}

a.button {
  margin-top: var(--space-sm);
  display: inline-block;
  font-size: var(--fs-4);
  background-color: var(--color-black);
  color: var(--color-bg);
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--border-radius);
  -webkit-text-decoration: none;
  text-decoration: none;
  text-align: center;
  scale: 1;
  transition: var(--transition-curve) var(--transition-time--slow);
  box-shadow: none;
  font-weight: var(--fw-medium);
}

a.button:hover {
  transition: var(--transition-curve) var(--transition-time--slow);
}

img {
  border-radius: var(--border-radius);
}

label {
  font-size: 14px;
  color: var(--color-gray);
}

/* Mobile responsiveness */
@media (max-width: 768px) {
  h1 {
    margin-bottom: var(--space-xl);
  }
}

/* Accessibility Improvements */

/* Skip link */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-black);
  color: var(--color-bg);
  padding: var(--space-xs) var(--space-md);
  text-decoration: none;
  z-index: 100;
  border-radius: var(--border-radius);
  font-weight: var(--fw-medium);
}

.skip-link:focus {
  top: var(--space-xs);
}

/* Enhanced focus indicators */
:focus {
  outline: 2px solid var(--color-link);
  outline-offset: 2px;
}

:focus:not(:focus-visible) {
  outline: none;
}

:focus-visible {
  outline: 2px solid var(--color-link);
  outline-offset: 2px;
}

/* Button improvements */
a.button:hover,
a.button:focus {
  background-color: var(--color-link);
  text-decoration: underline;
}


/* Ensure minimum tap targets */
a.button {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  :root {
    --color-link: #d41e24;
    --color-black: #000000;
    --color-bg: #ffffff;
  }
  
  a.button {
    border: 2px solid currentColor;
  }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  
  a.button:hover,
  a.button:focus {
    transform: none;
  }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #1a1a1a;
    --color-black: #f0f0f0;
    --color-p: #b8b5a6;
    --color-gray: #a0a0a0;
    --color-link: #ff6b6b;
  }
  
  body {
    background-color: var(--color-bg);
    color: var(--color-black);
  }
  
  a.button {
    background-color: var(--color-black);
    color: var(--color-bg);
  }
  
  footer img {
    opacity: .2;
  }
}

/* Print styles */
@media print {
  .skip-link,
  a.button {
    display: none;
  }
  
  body {
    font-size: 12pt;
    line-height: 1.5;
    color: black;
    background: white;
  }
  a {
    color: black;
    text-decoration: underline;
  }
}