/* Material 3 Expressive theming for wo.mbat */

:root {
  /* M3 color roles - light */
  --md-primary: #4A54E0;
  --md-on-primary: #FFFFFF;
  --md-primary-container: #E1E2FF;
  --md-on-primary-container: #000B67;
  --md-secondary-container: #E2E1F9;
  --md-on-secondary-container: #1B1B4D;
  --md-surface: #FBF8FF;
  --md-surface-container: #EFEDF9;
  --md-surface-container-high: #E9E7F5;
  --md-on-surface: #1A1B21;
  --md-on-surface-variant: #45464F;
  --md-outline: #767680;
  --md-outline-variant: #C7C5D0;
  --md-error: #BA1A1A;
  --md-error-container: #FFDAD6;
  --md-on-error-container: #410002;
  --md-tertiary: #00658E;
  --md-tertiary-container: #C8E6FF;
  --md-on-tertiary-container: #001E2E;

  /* M3 expressive shape scale */
  --shape-xs: 8px;
  --shape-sm: 12px;
  --shape-md: 16px;
  --shape-lg: 28px;
  --shape-xl: 36px;
  --shape-full: 999px;

  /* M3 expressive emphasis motion */
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --dur-med: 300ms;
}

@media (prefers-color-scheme: dark) {
  :root {
    --md-primary: #BFC3FF;
    --md-on-primary: #111C78;
    --md-primary-container: #2E3691;
    --md-on-primary-container: #E1E2FF;
    --md-secondary-container: #313451;
    --md-on-secondary-container: #E4E1F9;
    --md-surface: #121318;
    --md-surface-container: #1E1F26;
    --md-surface-container-high: #292A31;
    --md-on-surface: #E4E1E9;
    --md-on-surface-variant: #C7C5D0;
    --md-outline: #90909A;
    --md-outline-variant: #45464F;
    --md-error: #FFB4AB;
    --md-error-container: #93000A;
    --md-on-error-container: #FFDAD6;
    --md-tertiary: #86CFFF;
    --md-tertiary-container: #004B6B;
    --md-on-tertiary-container: #C8E6FF;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Roboto Flex", Roboto, system-ui, sans-serif;
  background: var(--md-surface);
  color: var(--md-on-surface);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* ---------- Header: large tonal hero shape ---------- */
header {
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
  padding: 3.5rem 1.5rem 4.5rem;
  text-align: center;
  border-end-start-radius: var(--shape-xl);
  border-end-end-radius: var(--shape-xl);
}
.logo { width: 170px; height: auto; max-width: 60vw; }
h1 {
  font-size: clamp(1.75rem, 4.5vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 1.25rem 0 0.35rem;
}
.tagline { margin: 0 auto; max-width: 46rem; opacity: 0.9; }
.tagline strong { font-weight: 700; }

main { max-width: 50rem; margin: 0 auto; padding: 2.5rem 1.5rem 3rem; }

/* ---------- Sections as M3 cards ---------- */
section {
  background: var(--md-surface-container);
  border-radius: var(--shape-lg);
  padding: 1.5rem 1.75rem;
  margin-bottom: 1.25rem;
}
h2 {
  font-size: 1.3rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0 0 0.75rem;
  color: var(--md-on-surface);
}

a { color: var(--md-primary); text-decoration-thickness: 1.5px; text-underline-offset: 3px; }
a:hover { color: var(--md-tertiary); }

ul { padding-left: 1.4rem; margin: 0.75rem 0; }
li { margin-bottom: 0.45rem; }

/* ---------- Contact box: filled tonal card ---------- */
.contact-box {
  display: inline-block;
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
  border-radius: var(--shape-full);
  padding: 0.75rem 1.75rem;
  margin: 1rem 0;
}
.contact-box p { margin: 0; display: flex; align-items: center; gap: 0.6rem; }
.contact-box .icon { width: 22px; height: 22px; flex: none; }
.contact-box .email {
  font-size: 1.15rem;
  font-weight: 700;
  color: inherit;
  text-decoration: none;
  transition: transform var(--dur-med) var(--ease-spring);
}
.contact-box .email:hover { transform: scale(1.04); }

/* ---------- Urgency highlight for CSAM section ---------- */
#csam-handling { background: var(--md-error-container); color: var(--md-on-error-container); }
#csam-handling a { color: inherit; font-weight: 600; }

#prohibition, #prohibition2 {
  background: var(--md-secondary-container);
  color: var(--md-on-secondary-container);
}

/* ---------- Footer ---------- */
footer {
  background: var(--md-surface-container-high);
  padding: 1.75rem 1.5rem;
  text-align: center;
  color: var(--md-on-surface-variant);
  font-size: 0.9rem;
  border-start-start-radius: var(--shape-xl);
  border-start-end-radius: var(--shape-xl);
}
footer a { font-weight: 600; }
.updated { margin: 0.5rem 0 0; }

@media (max-width: 480px) {
  section { padding: 1.25rem 1.25rem; border-radius: var(--shape-md); }
  .contact-box { width: 100%; justify-content: center; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}