/* ==========================================================================
   Panák — System styles
   Monochrome + subtle accent. Max width 960px. System fonts.
   ========================================================================== */

/* --------------------------------------------------------------------------
   Theme: dark only
   -------------------------------------------------------------------------- */
:root {
  --color-bg: #0f0f0f;
  --color-surface: #1a1a1a;
  --color-text: #e8e8e8;
  --color-text-muted: #a0a0a0;
  --color-border: #2a2a2a;
  --color-accent: #a0aec0;
  --color-accent-hover: #cbd5e0;
  --color-link: #cbd5e0;
  --color-link-hover: #e2e8f0;
  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "Cascadia Code", "Source Code Pro", Menlo, Consolas, monospace;
  --space-unit: 0.25rem;
  --space-xs: calc(var(--space-unit) * 2);
  --space-sm: calc(var(--space-unit) * 4);
  --space-md: calc(var(--space-unit) * 6);
  --space-lg: calc(var(--space-unit) * 10);
  --space-xl: calc(var(--space-unit) * 16);
  --space-2xl: calc(var(--space-unit) * 24);
  --max-width: 960px;
  --border-width: 1px;
  --transition-fast: 0.15s ease;
}

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

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

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* --------------------------------------------------------------------------
   Skip link (a11y)
   -------------------------------------------------------------------------- */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-sm);
  z-index: 100;
  padding: var(--space-xs) var(--space-sm);
  background: var(--color-surface);
  color: var(--color-link);
  border: var(--border-width) solid var(--color-border);
  text-decoration: none;
  font-size: 0.875rem;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: var(--space-sm);
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

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

/* --------------------------------------------------------------------------
   Header
   -------------------------------------------------------------------------- */
.site-header {
  padding-block: var(--space-md);
  border-bottom: var(--border-width) solid var(--color-border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.brand {
  font-weight: 600;
  font-size: 1.125rem;
  color: var(--color-text);
  letter-spacing: 0.02em;
}

/* --------------------------------------------------------------------------
   Main
   -------------------------------------------------------------------------- */
.main {
  flex: 1;
  padding-block: var(--space-2xl);
}

/* --------------------------------------------------------------------------
   Divider
   -------------------------------------------------------------------------- */
.divider {
  border: 0;
  height: 0;
  border-top: var(--border-width) solid var(--color-border);
  margin-block: var(--space-xl);
}

/* --------------------------------------------------------------------------
   Section heading
   -------------------------------------------------------------------------- */
.section-heading {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-block: 0 0 var(--space-md);
}

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */
.hero {
  padding-block: var(--space-lg) var(--space-xl);
}

.hero-headline {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-block: 0 0 var(--space-md);
  color: var(--color-text);
}

.hero-intro {
  max-width: 42ch;
  color: var(--color-text-muted);
  margin-block: 0 0 var(--space-sm);
  font-size: 1rem;
}

.hero-subline {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  opacity: 0.85;
  margin: 0;
}

/* --------------------------------------------------------------------------
   Focus (3 columns)
   -------------------------------------------------------------------------- */
.focus {
  padding-block: var(--space-lg);
}

.focus-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-lg);
}

.focus-card {
  margin: 0;
}

.focus-card-title {
  font-size: 1rem;
  font-weight: 600;
  margin-block: 0 0 var(--space-xs);
  color: var(--color-text);
}

.focus-card-text {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin: 0;
  line-height: 1.55;
}

/* --------------------------------------------------------------------------
   People (PersonCard)
   -------------------------------------------------------------------------- */
.people {
  padding-block: var(--space-lg);
}

.people-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-md);
}

.person-card {
  padding: var(--space-md);
  border: var(--border-width) solid var(--color-border);
  background: var(--color-surface);
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.person-card:hover {
  border-color: var(--color-text-muted);
}

.person-card-name {
  font-size: 1rem;
  font-weight: 600;
  margin-block: 0 0 var(--space-xs);
  color: var(--color-text);
}

.person-card-role {
  font-size: 0.8125rem;
  color: var(--color-accent);
  margin-block: 0 0 var(--space-xs);
}

.person-card-text {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin: 0;
  line-height: 1.55;
}

.person-card-link {
  margin: var(--space-sm) 0 0;
  font-size: 0.8125rem;
}

.person-card-link a {
  color: var(--color-accent);
  text-decoration: none;
  border-bottom: var(--border-width) solid transparent;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.person-card-link a:hover {
  color: var(--color-link-hover);
  border-bottom-color: var(--color-accent);
}

/* --------------------------------------------------------------------------
   Contact
   -------------------------------------------------------------------------- */
.contact {
  padding-block: var(--space-lg);
}

.contact-intro {
  color: var(--color-text-muted);
  margin-block: 0 0 var(--space-sm);
  font-size: 0.9375rem;
}

.contact-email {
  margin: 0;
  font-size: 1rem;
}

.contact-email a {
  color: var(--color-link);
  text-decoration: none;
  border-bottom: var(--border-width) solid transparent;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.contact-email a:hover {
  color: var(--color-link-hover);
  border-bottom-color: var(--color-accent);
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.site-footer {
  padding-block: var(--space-md);
  border-top: var(--border-width) solid var(--color-border);
  margin-top: auto;
}

.site-footer .container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-sm);
}

.footer-copy {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin: 0;
}

.footer-note {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  opacity: 0.8;
  margin: 0;
}

.footer-easter {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  opacity: 0.65;
  margin: 0;
}