/* =============================================================
   BSD THEME — MAIN STYLESHEET
   Import order:
     1. variables.css  (design tokens)
     2. theme.css      (this file — base + components)
     3. custom.css     (your overrides, keep untouched by updates)
   ============================================================= */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;600;700&family=Source+Sans+3:wght@400;500;600&display=swap');

/* ─── Reset ────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
img, video, svg { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

/* ─── Base ──────────────────────────────────────────────────── */
body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-ink);
  background: var(--color-bg);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  line-height: var(--leading-tight);
  color: var(--color-primary);
  font-weight: var(--weight-bold);
}

h1 { font-size: var(--text-4xl); }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }
h5 { font-size: var(--text-lg); }
h6 { font-size: var(--text-md); }

p { margin-bottom: var(--space-4); max-width: 72ch; }
p:last-child { margin-bottom: 0; }

strong { font-weight: var(--weight-semibold); }
em { font-style: italic; }

a:where(:not(.btn)) {
  color: var(--color-primary-light);
  text-decoration: underline;
  text-decoration-color: transparent;
  transition: text-decoration-color var(--duration-fast) var(--ease);
}
a:where(:not(.btn)):hover { text-decoration-color: currentColor; }

hr {
  border: none;
  border-top: var(--border-width) solid var(--color-border);
  margin: var(--space-8) 0;
}

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

.container--narrow {
  max-width: var(--container-narrow);
}

.section {
  padding-block: var(--space-20);
}

.section--sm { padding-block: var(--space-12); }
.section--lg { padding-block: var(--space-24); }

.section--alt { background: var(--color-surface-alt); }
.section--dark {
  background: var(--color-primary);
  color: #fff;
}
.section--dark h1,
.section--dark h2,
.section--dark h3,
.section--dark h4 { color: #fff; }

/* ─── Navigation ────────────────────────────────────────────── */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-height);
  background: var(--nav-bg);
  box-shadow: var(--shadow-sm);
}

.nav__inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}

/* Logo */
.nav__logo {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  color: var(--nav-text);
  letter-spacing: -0.02em;
  flex-shrink: 0;
}
.nav__logo:hover { color: var(--nav-text-hover); }

/* Desktop menu */
.nav__menu {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  height: 100%;
}

.nav__item {
  position: relative;
  height: 100%;
  display: flex;
  align-items: center;
}

.nav__link {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-4);
  color: var(--nav-text);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  letter-spacing: 0.03em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  transition: color var(--duration-fast) var(--ease),
              background var(--duration-fast) var(--ease);
  white-space: nowrap;
}

.nav__link:hover,
.nav__item--active > .nav__link {
  color: var(--nav-text-hover);
  background: rgba(255,255,255,.08);
}

/* Dropdown arrow */
.nav__link--has-children::after {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg) translateY(-2px);
  transition: transform var(--duration-fast) var(--ease);
}
.nav__item:hover .nav__link--has-children::after {
  transform: rotate(-135deg) translateY(-2px);
}

/* Dropdown panel */
.nav__dropdown {
  position: absolute;
  top: calc(100% + 2px);
  left: 0;
  min-width: 200px;
  background: var(--nav-dropdown-bg);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--nav-dropdown-shadow);
  padding: var(--space-2) 0;
  opacity: 0;
  pointer-events: none;
  transform: translateY(6px);
  transition: opacity var(--duration-base) var(--ease),
              transform var(--duration-base) var(--ease);
}

.nav__item:hover .nav__dropdown,
.nav__item:focus-within .nav__dropdown {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.nav__dropdown-link {
  display: block;
  padding: var(--space-3) var(--space-5);
  color: var(--color-ink);
  font-size: var(--text-sm);
  transition: background var(--duration-fast) var(--ease),
              color var(--duration-fast) var(--ease);
}
.nav__dropdown-link:hover {
  background: var(--color-surface-alt);
  color: var(--color-primary);
}

/* Hamburger toggle — hidden on desktop */
.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
  border-radius: var(--radius-sm);
}
.nav__toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--nav-text);
  border-radius: 2px;
  transition: transform var(--duration-base) var(--ease),
              opacity var(--duration-base) var(--ease);
}

/* Hamburger → X animation */
.nav--open .nav__toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav--open .nav__toggle span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav--open .nav__toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ─── Footer ────────────────────────────────────────────────── */
.footer {
  background: var(--footer-bg);
  color: var(--footer-text);
  padding-block: var(--space-16) var(--space-8);
}

.footer__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-10);
  margin-bottom: var(--space-12);
}

.footer__col-title {
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-weight: var(--weight-semibold);
  color: var(--footer-heading);
  margin-bottom: var(--space-5);
}

.footer__col p,
.footer__col address {
  font-style: normal;
  font-size: var(--text-sm);
  line-height: var(--leading-loose);
  color: var(--footer-text);
  text-align: center;
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer__links a {
  color: var(--footer-link);
  font-size: var(--text-sm);
  transition: color var(--duration-fast) var(--ease);
}
.footer__links a:hover { color: var(--footer-link-hover); }

.footer__bottom {
  border-top: 1px solid rgba(255,255,255,.12);
  padding-top: var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  font-size: var(--text-xs);
  color: rgba(255,255,255,.45);
}

/* ─── Buttons ───────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.65em 1.5em;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: background var(--duration-fast) var(--ease),
              color var(--duration-fast) var(--ease),
              border-color var(--duration-fast) var(--ease),
              box-shadow var(--duration-fast) var(--ease);
  white-space: nowrap;
}
.btn--primary {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}
.btn--primary:hover {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  box-shadow: var(--shadow-sm);
}
.btn--secondary {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn--secondary:hover {
  background: var(--color-primary);
  color: #fff;
}
.btn--ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,.6);
}
.btn--ghost:hover {
  background: rgba(255,255,255,.12);
  border-color: #fff;
}
.btn--lg { font-size: var(--text-base); padding: 0.75em 2em; }

/* ─── Page content (non-modular) ────────────────────────────── */
.page-content {
  padding-block: var(--space-16);
}

.page-content h1,
.page-content h2,
.page-content h3 {
  margin-bottom: var(--space-4);
  margin-top: var(--space-10);
}
.page-content h1:first-child,
.page-content h2:first-child { margin-top: 0; }

/* ─── Responsive ────────────────────────────────────────────── */
@media (max-width: 900px) {
  .footer__grid {
    grid-template-columns: 1fr 1fr;
  }
  .footer__grid > *:last-child {
    grid-column: 1 / -1;
  }
}

@media (max-width: 700px) {
  /* Mobile nav */
  .nav__toggle { display: flex; }

  .nav__menu {
    position: fixed;
    inset: var(--nav-height) 0 0 0;
    background: var(--nav-bg);
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    height: calc(100dvh - var(--nav-height));
    overflow-y: auto;
    padding: var(--space-4) 0;
    gap: 0;
    transform: translateX(100%);
    transition: transform var(--duration-base) var(--ease);
  }

  .nav--open .nav__menu {
    transform: translateX(0);
  }

  .nav__item { height: auto; flex-direction: column; align-items: stretch; }

  .nav__link {
    padding: var(--space-4) var(--space-6);
    font-size: var(--text-base);
    border-radius: 0;
    text-transform: none;
    letter-spacing: 0;
  }

  .nav__link--has-children::after { margin-left: auto; }

  .nav__dropdown {
    position: static;
    opacity: 1;
    pointer-events: auto;
    transform: none;
    box-shadow: none;
    border: none;
    border-radius: 0;
    background: rgba(0,0,0,.15);
    padding: 0;
    display: none;
  }

  .nav__item--open .nav__dropdown { display: block; }

  .nav__dropdown-link {
    color: rgba(255,255,255,.85);
    padding-left: var(--space-10);
  }
  .nav__dropdown-link:hover {
    background: rgba(255,255,255,.08);
    color: var(--nav-text-hover);
  }

  /* Typography scale-down */
  h1 { font-size: var(--text-3xl); }
  h2 { font-size: var(--text-2xl); }
  h3 { font-size: var(--text-xl); }

  .footer__grid { grid-template-columns: 1fr; }
  .footer__bottom { flex-direction: column; text-align: center; }

  .section { padding-block: var(--space-12); }
}

html {
  height: 100%;
}

body {
  min-height: 100%;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
}