/* 16E — Design System (based on No IP World) */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&family=JetBrains+Mono:wght@300;400;500&family=Inter:wght@300;400;500;600&display=swap');

:root {
  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  --text-xs: clamp(0.75rem, 0.65rem + 0.25vw, 0.8rem);
  --text-sm: clamp(0.875rem, 0.75rem + 0.3vw, 0.9rem);
  --text-base: clamp(1rem, 0.9rem + 0.3vw, 1.05rem);
  --text-lg: clamp(1.15rem, 1rem + 0.5vw, 1.3rem);
  --text-xl: clamp(1.4rem, 1.1rem + 1vw, 1.75rem);
  --text-2xl: clamp(1.8rem, 1.4rem + 1.5vw, 2.5rem);
  --text-3xl: clamp(2.2rem, 1.6rem + 2.5vw, 3.5rem);
  --text-4xl: clamp(2.8rem, 1.8rem + 4vw, 5rem);

  --space-2xs: clamp(0.25rem, 0.2rem + 0.2vw, 0.375rem);
  --space-xs: clamp(0.5rem, 0.4rem + 0.3vw, 0.75rem);
  --space-sm: clamp(0.75rem, 0.6rem + 0.5vw, 1rem);
  --space-md: clamp(1rem, 0.8rem + 0.8vw, 1.5rem);
  --space-lg: clamp(1.5rem, 1.2rem + 1.2vw, 2.25rem);
  --space-xl: clamp(2rem, 1.5rem + 2vw, 3.5rem);
  --space-2xl: clamp(3rem, 2rem + 3.5vw, 5.5rem);
  --space-3xl: clamp(4rem, 2.5rem + 5vw, 8rem);

  --content-width: 72rem;
  --content-narrow: 44rem;
  --grid-gap: var(--space-lg);
  --border-radius-sm: 6px;
  --border-radius-md: 10px;
  --border-radius-lg: 16px;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --duration-fast: 150ms;
  --duration-base: 280ms;
  --duration-slow: 500ms;

  --z-nav: 200;
}

/* Light theme (default for corporate) */
:root,
[data-theme="light"] {
  --color-bg: #f7f9fb;
  --color-bg-raised: #ffffff;
  --color-bg-elevated: #ffffff;
  --color-bg-overlay: rgba(247, 249, 251, 0.88);

  --color-surface: #eef2f6;
  --color-surface-hover: #e1e7ed;
  --color-surface-active: #d0d8e1;

  --color-border: #dce3eb;
  --color-border-subtle: #eef2f6;
  --color-border-strong: #a3b1c2;

  --color-text: #001a38;
  --color-text-secondary: #3d5068;
  --color-text-tertiary: #7a8d9f;
  --color-text-inverse: #f7f9fb;

  --color-accent: #78bd1f;
  --color-accent-hover: #619a18;
  --color-accent-subtle: rgba(120, 189, 31, 0.1);
  --color-accent-muted: rgba(120, 189, 31, 0.22);

  --color-secondary: #002854;
  --color-secondary-subtle: rgba(0, 40, 84, 0.08);

  --glow-accent: 0 0 40px rgba(120, 189, 31, 0.12);
  --glow-subtle: none;
}

/* Dark theme */
[data-theme="dark"] {
  --color-bg: #001224;
  --color-bg-raised: #001a38;
  --color-bg-elevated: #002244;
  --color-bg-overlay: rgba(0, 18, 36, 0.92);

  --color-surface: #001a38;
  --color-surface-hover: #002448;
  --color-surface-active: #002e58;

  --color-border: #003060;
  --color-border-subtle: #002244;
  --color-border-strong: #004488;

  --color-text: #edf2f7;
  --color-text-secondary: #8da3c0;
  --color-text-tertiary: #506a8a;
  --color-text-inverse: #001224;

  --color-accent: #8fd42e;
  --color-accent-hover: #a8e84e;
  --color-accent-subtle: rgba(143, 212, 46, 0.1);
  --color-accent-muted: rgba(143, 212, 46, 0.25);

  --color-secondary: #4d8ad4;
  --color-secondary-subtle: rgba(77, 138, 212, 0.1);

  --glow-accent: 0 0 40px rgba(143, 212, 46, 0.18);
  --glow-subtle: 0 0 80px rgba(143, 212, 46, 0.06);
}

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

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

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  min-height: 100dvh;
  overflow-x: hidden;
}

::selection { background: var(--color-accent-muted); color: var(--color-text); }
:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 3px; border-radius: var(--border-radius-sm); }
img, video, svg { display: block; max-width: 100%; height: auto; }
a { color: var(--color-accent); text-decoration: none; transition: color var(--duration-fast) var(--ease-out); }
a:hover { color: var(--color-accent-hover); }

/* Layout */
.container { width: 100%; max-width: var(--content-width); margin-inline: auto; padding-inline: var(--space-md); overflow-wrap: break-word; }
.container--narrow { max-width: var(--content-narrow); }
.section { padding-block: var(--space-lg); position: relative; overflow: hidden; }
.section--hero { padding-block: var(--space-xl); }
.section__glow { position: absolute; top: -20%; left: 50%; transform: translateX(-50%); width: 700px; height: 500px; border-radius: 50%; pointer-events: none; z-index: 0; }
.section__glow--accent { background: radial-gradient(ellipse, var(--color-accent-subtle), transparent 70%); }
.section__glow--navy { background: radial-gradient(ellipse, rgba(0,40,84,0.12), transparent 70%); }
.section > .container { position: relative; z-index: 1; }

.grid { display: grid; gap: var(--grid-gap); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--auto { grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr)); }

.flex { display: flex; gap: var(--space-md); }
.flex--between { justify-content: space-between; align-items: center; }
.flex--center { justify-content: center; align-items: center; }
.flex--col { flex-direction: column; }

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--color-text);
  text-wrap: balance;
}

h1 { font-size: var(--text-4xl); font-weight: 700; letter-spacing: -0.035em; }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }
h5 { font-size: var(--text-lg); }

.display { font-family: var(--font-display); font-size: var(--text-4xl); font-weight: 700; line-height: 1.05; letter-spacing: -0.04em; }
.eyebrow { font-family: var(--font-mono); font-size: var(--text-xs); font-weight: 500; letter-spacing: 0.12em; text-transform: uppercase; color: var(--color-accent); }
.lead { font-size: var(--text-lg); color: var(--color-text-secondary); line-height: 1.6; max-width: 38em; }
.text-mono { font-family: var(--font-mono); }
.text-muted { color: var(--color-text-secondary); }
.text-tertiary { color: var(--color-text-tertiary); }
.text-accent { color: var(--color-accent); }
.text-gradient { background: linear-gradient(135deg, var(--color-accent), var(--color-secondary)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

blockquote { border-left: 3px solid var(--color-accent); padding-left: var(--space-md); margin-block: var(--space-lg); font-size: var(--text-lg); font-style: italic; color: var(--color-text-secondary); }
hr { border: none; height: 1px; background: var(--color-border); margin-block: var(--space-xl); }

/* Navigation */
.nav {
  position: sticky; top: 0; z-index: var(--z-nav);
  background: var(--color-bg-overlay);
  backdrop-filter: blur(20px) saturate(1.8);
  -webkit-backdrop-filter: blur(20px) saturate(1.8);
  border-bottom: 1px solid var(--color-border-subtle);
  padding-block: var(--space-sm);
  transition: background var(--duration-base) var(--ease-out);
}
.nav__inner { display: flex; align-items: center; justify-content: space-between; gap: var(--space-md); }
.nav__logo { font-family: var(--font-display); font-size: var(--text-lg); font-weight: 700; color: var(--color-text); text-decoration: none; display: flex; align-items: center; gap: var(--space-xs); letter-spacing: -0.03em; }
.nav__logo:hover { color: var(--color-text); }
.nav__logo-img { height: 36px; width: auto; }
.footer__logo-img { height: 28px; width: auto; }

/* Logo theme switching */
.logo--dark { display: none; }
.logo--light { display: block; }
[data-theme="dark"] .logo--dark { display: block; }
[data-theme="dark"] .logo--light { display: none; }
.nav__logo-mark { display: inline-flex; align-items: center; justify-content: center; width: 32px; height: 32px; border-radius: var(--border-radius-sm); background: var(--color-accent); color: var(--color-text-inverse); font-size: var(--text-sm); font-weight: 700; }

.nav__links { display: flex; align-items: center; gap: var(--space-xs); list-style: none; }
.nav__link { font-size: var(--text-sm); color: var(--color-text-secondary); padding: var(--space-2xs) var(--space-sm); border-radius: var(--border-radius-sm); transition: all var(--duration-fast) var(--ease-out); text-decoration: none; }
.nav__link:hover, .nav__link--active { color: var(--color-text); background: var(--color-surface); }
.nav__actions { display: flex; align-items: center; gap: var(--space-xs); }

/* Hamburger */
.nav__hamburger { display: none; flex-direction: column; justify-content: center; gap: 5px; width: 32px; height: 32px; background: none; border: none; cursor: pointer; padding: 4px; z-index: calc(var(--z-nav) + 10); }
.nav__hamburger span { display: block; width: 100%; height: 2px; background: var(--color-text); border-radius: 2px; transition: all var(--duration-base) var(--ease-out); transform-origin: center; }
.nav__hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav__hamburger.open span:nth-child(2) { opacity: 0; }
.nav__hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }
.nav__mobile-actions { display: none; }

/* Lang switch */
.lang-switch { display: inline-flex; border-radius: var(--border-radius-sm); border: 1px solid var(--color-border); overflow: hidden; height: 32px; }
.lang-switch__btn { padding: 0 var(--space-sm); font-family: var(--font-mono); font-size: var(--text-xs); font-weight: 500; color: var(--color-text-tertiary); background: transparent; border: none; cursor: pointer; transition: all var(--duration-fast) var(--ease-out); letter-spacing: 0.06em; text-transform: uppercase; text-decoration: none; line-height: 32px; }
.lang-switch__btn:hover { color: var(--color-text-secondary); background: var(--color-surface); }
.lang-switch__btn--active { color: var(--color-text); background: var(--color-surface); }
.lang-switch__btn + .lang-switch__btn { border-left: 1px solid var(--color-border); }

/* Theme toggle */
.theme-toggle { width: 32px; height: 32px; border-radius: var(--border-radius-sm); border: 1px solid var(--color-border); background: transparent; color: var(--color-text-secondary); cursor: pointer; display: inline-flex; align-items: center; justify-content: center; font-size: 1rem; transition: all var(--duration-fast) var(--ease-out); }
.theme-toggle:hover { color: var(--color-text); background: var(--color-surface); border-color: var(--color-border-strong); }

/* Hero */
.hero { text-align: center; position: relative; overflow: hidden; }
.hero__illustration { width: 100%; max-width: 1920px; margin-inline: auto; margin-top: var(--space-xl); display: block; }
[data-theme="dark"] .hero__illustration { filter: invert(1) hue-rotate(180deg); }
.hero__tagline { font-family: var(--font-mono); font-size: var(--text-sm); letter-spacing: 0.1em; color: var(--color-text-tertiary); margin-bottom: var(--space-lg); }
.hero__title { max-width: 18ch; margin-inline: auto; margin-bottom: var(--space-md); }
.hero__subtitle { max-width: 40em; margin-inline: auto; margin-bottom: var(--space-xl); }
.hero__logo { height: 50px; width: auto; margin-inline: auto; }
.hero__glow { position: absolute; top: -30%; left: 50%; transform: translateX(-50%); width: 600px; height: 400px; background: radial-gradient(ellipse, var(--color-accent-subtle), transparent 70%); border-radius: 50%; pointer-events: none; z-index: -1; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: var(--space-xs); font-family: var(--font-display); font-size: var(--text-sm); font-weight: 500; padding: var(--space-xs) var(--space-md); border-radius: var(--border-radius-sm); border: 1px solid transparent; cursor: pointer; transition: all var(--duration-fast) var(--ease-out); text-decoration: none; white-space: nowrap; line-height: 1.4; }
.btn--primary { background: var(--color-accent); color: var(--color-text-inverse); border-color: var(--color-accent); }
.btn--primary:hover { background: var(--color-accent-hover); border-color: var(--color-accent-hover); color: var(--color-text-inverse); transform: translateY(-1px); box-shadow: var(--glow-accent); }
.btn--secondary { background: transparent; color: var(--color-text); border-color: var(--color-border); }
.btn--secondary:hover { background: var(--color-surface); border-color: var(--color-border-strong); transform: translateY(-1px); }
.btn--ghost { background: transparent; color: var(--color-text-secondary); border: none; padding: var(--space-2xs) var(--space-xs); }
.btn--ghost:hover { color: var(--color-text); background: var(--color-surface); }
.btn--lg { font-size: var(--text-base); padding: var(--space-sm) var(--space-lg); border-radius: var(--border-radius-md); }

/* Cards */
.card { background: var(--color-bg-raised); border-radius: var(--border-radius-lg); border: 1px solid var(--color-border-subtle); overflow: hidden; transition: all var(--duration-base) var(--ease-out); position: relative; }
.card:hover { border-color: var(--color-border); transform: translateY(-3px); box-shadow: 0 20px 40px rgba(0,0,0,0.1), var(--glow-subtle); }
.card__body { padding: var(--space-md); }
.card__meta { display: flex; align-items: center; gap: var(--space-sm); margin-bottom: var(--space-sm); }
.card__tag { font-family: var(--font-mono); font-size: var(--text-xs); font-weight: 500; letter-spacing: 0.08em; text-transform: uppercase; color: var(--color-accent); padding: var(--space-2xs) var(--space-xs); border-radius: var(--border-radius-sm); background: var(--color-accent-subtle); }
.card__title { font-family: var(--font-display); font-size: var(--text-xl); font-weight: 600; letter-spacing: -0.02em; line-height: 1.25; margin-bottom: var(--space-xs); color: var(--color-text); transition: color var(--duration-fast); }
.card:hover .card__title { color: var(--color-accent); }
.card__excerpt { font-size: var(--text-sm); color: var(--color-text-secondary); line-height: 1.6; }
.card__footer { display: flex; align-items: center; justify-content: space-between; padding: var(--space-sm) var(--space-md); border-top: 1px solid var(--color-border-subtle); }

.service-card { background: var(--color-bg-raised); border-radius: var(--border-radius-lg); border: 1px solid var(--color-border-subtle); padding: var(--space-lg); transition: all var(--duration-base) var(--ease-out); }
.service-card:hover { border-color: var(--color-accent-muted); transform: translateY(-3px); box-shadow: 0 12px 32px rgba(0,0,0,0.08), var(--glow-subtle); }
.service-card__header { display: flex; align-items: center; gap: var(--space-md); margin-bottom: var(--space-sm); }
.service-card__icon { flex-shrink: 0; width: 48px; height: 48px; background: var(--color-accent-subtle); border-radius: var(--border-radius-sm); display: flex; align-items: center; justify-content: center; color: var(--color-accent); }
.service-card__title { font-family: var(--font-display); font-size: var(--text-lg); font-weight: 600; }
.service-card__desc { font-size: var(--text-sm); color: var(--color-text-secondary); line-height: 1.6; }

/* About features */
.feature { display: flex; gap: var(--space-lg); margin-bottom: var(--space-lg); }
.feature__icon { flex-shrink: 0; width: 48px; height: 48px; background: var(--color-accent-subtle); border-radius: var(--border-radius-sm); display: flex; align-items: center; justify-content: center; font-size: 1.3rem; color: var(--color-accent); }
.feature__title { font-family: var(--font-display); font-size: var(--text-base); font-weight: 600; margin-bottom: var(--space-2xs); }
.feature__desc { font-size: var(--text-sm); color: var(--color-text-secondary); }
.feature__list { margin: var(--space-xs) 0; padding-left: var(--space-md); list-style: disc; }
.feature__list li { margin-bottom: var(--space-2xs); color: var(--color-text-secondary); font-size: var(--text-sm); }

/* Value proposition block */
.value-block { margin-top: var(--space-xl); padding: var(--space-xl); background: var(--color-bg-raised); border-radius: var(--border-radius-lg); border: 1px solid var(--color-border-subtle); text-align: center; }
.value-block__list { list-style: none; padding: 0; margin: 0 0 var(--space-lg) 0; display: inline-block; text-align: left; }
.value-block__list li { font-family: var(--font-display); font-size: var(--text-base); font-weight: 600; color: var(--color-text-primary); margin-bottom: var(--space-sm); letter-spacing: -0.01em; }
.value-block__marker { color: var(--color-accent); margin-right: var(--space-sm); }
.value-block__cta-text { font-size: var(--text-sm); color: var(--color-text-secondary); margin-bottom: var(--space-md); }

/* Publication link */
.publication-link { display: inline-flex; align-items: center; gap: var(--space-sm); font-family: var(--font-display); font-size: var(--text-lg); font-weight: 500; color: var(--color-accent); text-decoration: none; transition: all var(--duration-fast) var(--ease-out); }
.publication-link:hover { color: var(--color-text-primary); }
.publication-link__icon { font-size: var(--text-xl); font-weight: 700; }
.publication-link__arrow { transition: transform var(--duration-fast) var(--ease-out); }
.publication-link:hover .publication-link__arrow { transform: translateX(4px); }

/* Contact form */
.form-group { margin-bottom: var(--space-md); }
.form-label { display: block; font-family: var(--font-mono); font-size: var(--text-xs); font-weight: 500; letter-spacing: 0.06em; text-transform: uppercase; color: var(--color-text-tertiary); margin-bottom: var(--space-2xs); }
.form-input, .form-textarea { width: 100%; font-family: var(--font-body); font-size: var(--text-sm); padding: var(--space-xs) var(--space-sm); background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--border-radius-sm); color: var(--color-text); transition: border-color var(--duration-fast); }
.form-input:focus, .form-textarea:focus { outline: none; border-color: var(--color-accent); box-shadow: 0 0 0 3px var(--color-accent-subtle); }
.form-textarea { resize: vertical; min-height: 120px; }

/* Dividers */
.divider { display: flex; align-items: center; gap: var(--space-md); color: var(--color-text-tertiary); font-family: var(--font-mono); font-size: var(--text-lg); letter-spacing: 0.15em; text-transform: uppercase; margin-block: var(--space-xl); }
.divider::before, .divider::after { content: ''; flex: 1; height: 1px; background: var(--color-border); }

/* Footer */
.footer { border-top: 1px solid var(--color-border-subtle); padding-top: var(--space-xl); padding-bottom: var(--space-md); margin-top: var(--space-2xl); }
.footer__inner { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: flex-start; gap: var(--space-lg); }
.footer__brand { max-width: 28ch; }
.footer__brand-name { font-family: var(--font-display); font-size: var(--text-lg); font-weight: 700; letter-spacing: -0.03em; margin-bottom: var(--space-xs); display: flex; align-items: center; gap: var(--space-xs); }
.footer__brand-desc { font-size: var(--text-sm); color: var(--color-text-tertiary); line-height: 1.6; }
.footer__links { display: flex; gap: var(--space-xl); }
.footer__column h6 { font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: 0.1em; text-transform: uppercase; color: var(--color-text-tertiary); margin-bottom: var(--space-sm); }
.footer__column ul { list-style: none; display: flex; flex-wrap: wrap; gap: var(--space-xs) var(--space-md); }
.footer__column a { font-size: var(--text-sm); color: var(--color-text-secondary); transition: color var(--duration-fast); }
.footer__column a:hover { color: var(--color-text); }
.footer__bottom { display: flex; justify-content: space-between; align-items: center; gap: var(--space-md); padding-top: var(--space-lg); margin-top: var(--space-lg); border-top: 1px solid var(--color-border-subtle); font-size: var(--text-xs); color: var(--color-text-tertiary); }

/* Animations */
@keyframes fade-in-up { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: translateY(0); } }
.animate-in { animation: fade-in-up var(--duration-slow) var(--ease-out) both; }
.stagger > * { animation: fade-in-up var(--duration-slow) var(--ease-out) both; }
.stagger > *:nth-child(1) { animation-delay: 0ms; }
.stagger > *:nth-child(2) { animation-delay: 80ms; }
.stagger > *:nth-child(3) { animation-delay: 160ms; }
.stagger > *:nth-child(4) { animation-delay: 240ms; }
.stagger > *:nth-child(5) { animation-delay: 320ms; }
.stagger > *:nth-child(6) { animation-delay: 400ms; }

[data-reveal] { opacity: 0; transform: translateY(20px); transition: opacity var(--duration-slow) var(--ease-out), transform var(--duration-slow) var(--ease-out); }
[data-reveal].revealed { opacity: 1; transform: translateY(0); }

/* Utilities */
.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; }
.text-center { text-align: center; }
.mx-auto { margin-inline: auto; }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }

/* Responsive */
@media (max-width: 768px) {
  .grid--2, .grid--3 { grid-template-columns: 1fr; }
  .nav__links { display: none; position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; background: var(--color-bg); border-bottom: 1px solid var(--color-border); padding: var(--space-md); gap: 0; }
  .nav__links.open { display: flex; }
  .nav__links .nav__link { display: block; padding: var(--space-sm) var(--space-md); font-size: var(--text-base); border-radius: var(--border-radius-sm); }
  .nav__hamburger { display: flex; margin-left: auto; }
  .nav__actions { display: none; }
  .nav__mobile-actions { display: flex; align-items: center; gap: var(--space-sm); padding: var(--space-md) var(--space-md) var(--space-xs); border-top: 1px solid var(--color-border-subtle); margin-top: var(--space-sm); }
  .nav__mobile-actions .lang-switch { height: 44px; }
  .nav__mobile-actions .lang-switch__btn { line-height: 44px; font-size: var(--text-sm); padding: 0 var(--space-md); }
  .nav__mobile-actions .theme-toggle { width: 44px; height: 44px; font-size: 1.2rem; }
  .footer__inner { flex-direction: column; align-items: center; text-align: center; }
  .footer__brand-name { justify-content: center; }
  .footer__links { gap: var(--space-lg); }
  .footer__bottom { flex-direction: column; text-align: center; }
  .hero__glow { display: none; }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
}

@media print {
  body { background: white; color: black; }
  .nav, .theme-toggle, .lang-switch { display: none; }
}