/* ─── RESET & FONTS ──────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; scroll-behavior: smooth; }
html, body { width: 100%; min-height: 100%; background-color: var(--bg); color: var(--text-1); }
a { text-decoration: none; color: inherit; }
button { cursor: pointer; border: none; background: none; font: inherit; }
img { display: block; max-width: 100%; height: auto; }
button:focus-visible, a:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }

/* ─── DESIGN TOKENS ──────────────────────────────────── */
:root {
  --bg:         #f8f9fa;
  --bg-2:       #ffffff;
  --bg-3:       #f1f3f5;
  --bg-4:       #e9ecef;

  --border:     #e9ecef;
  --border-2:   #dee2e6;

  --text-1:     #111111;
  --text-2:     #495057;
  --text-3:     #868e96;
  --text-4:     #adb5bd;

  --accent:     #4c6fb3;
  --accent-2:   #3b5c9a;
  --accent-dim: rgba(76, 111, 179, 0.08);

  /* Brand scale — taken directly from the Aquilate mark.
     The four bars ARE the allocation concept, so this exact
     sequence is reused everywhere categories/splits appear. */
  --brand-1:    #1B2D57; /* the "A" / darkest bar */
  --brand-2:    #4A6DB7;
  --brand-3:    #AEB9CC;
  --brand-4:    #D7D7D7;

  --radius:     8px;
  --radius-2:   16px;

  --shadow:     0 4px 12px rgba(0, 0, 0, 0.03), 0 1px 2px rgba(0, 0, 0, 0.02);
  --shadow-lg:  0 24px 48px rgba(27, 45, 87, 0.07), 0 2px 6px rgba(27, 45, 87, 0.04);

  --font-body:  'Inter', Helvetica, Arial, sans-serif;
  --font-mono:  'JetBrains Mono', monospace;
}

/* ─── GLOBAL SHELL ───────────────────────────────────── */
.addit {
  font-family: var(--font-body);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ─── HEADER ─────────────────────────────────────────── */
.site-header {
  position: sticky; top: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.25rem 3.25rem; gap: 1.5rem;
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
}

.logo-link { display: flex; align-items: center; flex-shrink: 0; }
.addit-wordmark {
  font-size: 1.05rem; font-weight: 600;
  color: var(--text-1); letter-spacing: -0.02em;
}

.main-nav { display: flex; align-items: center; gap: 2rem; }
.main-nav a {
  font-size: 0.875rem; font-weight: 400; color: var(--text-2);
  transition: color 0.2s ease; position: relative; padding: 0.25rem 0;
  white-space: nowrap;
}
.main-nav a:hover { color: var(--text-1); }
.main-nav .nav-active { color: var(--text-1); font-weight: 500; }
.main-nav .nav-active::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0;
  height: 2px; background: var(--accent); border-radius: 2px;
}

.btn-download {
  background: var(--bg-3); border: 1px solid var(--border-2);
  color: var(--text-2) !important; font-weight: 500;
  padding: 0.5rem 1.25rem; border-radius: var(--radius);
  transition: all 0.2s ease;
}
.btn-download:hover, .btn-download.active {
  background: var(--brand-1); border-color: var(--brand-1); color: #ffffff !important;
}

/* ─── SCROLL AREAS & GENERIC INTERFACES ─────────────── */
.hiw-scroll-area { flex: 1; width: 100%; }
.section-label {
  font-family: var(--font-mono); font-size: 0.687rem; font-weight: 500;
  letter-spacing: 0.14em; text-transform: uppercase; color: var(--text-3);
  display: flex; align-items: center; gap: 1rem; margin-bottom: 1.5rem;
}
.section-label::after { content: ''; flex: 1; height: 1px; background: var(--border); }
.hiw-rule { border: none; border-top: 1px solid var(--border); margin: 0; }

/* ─── FOOTER ─────────────────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--border); background: var(--bg-2);
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.5rem 3.25rem; margin-top: auto; gap: 1.5rem;
}
.footer-left { font-size: 0.75rem; color: var(--text-3); font-family: var(--font-mono); }
.footer-socials { display: flex; align-items: center; gap: 0.5rem; }
.footer-socials a {
  display: flex; align-items: center; justify-content: center; width: 32px; height: 32px;
  border: 1px solid var(--border); border-radius: var(--radius); color: var(--text-3);
  transition: all 0.2s ease; background: var(--bg-2);
}
.footer-socials a:hover { color: var(--accent); border-color: var(--accent); background: var(--bg-3); }

/* ─── PAGE LOAD ANIMATION ────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ─── RESPONSIVE HEADER / FOOTER ─────────────────────── */
@media (max-width: 1024px) {
  .site-header, .site-footer { padding-left: 2rem; padding-right: 2rem; }
}

@media (max-width: 640px) {
  .site-header { padding: 0.9rem 1rem; gap: 0.75rem; }
  .addit-wordmark { font-size: 0.95rem; }
  .main-nav { gap: 0.85rem; }
  .main-nav a { font-size: 0.75rem; }
  .btn-download { padding: 0.4rem 0.75rem; font-size: 0.75rem; }
  .site-footer { flex-direction: column-reverse; align-items: center; padding: 2rem 1rem; gap: 1rem; text-align: center; }
}

@media (max-width: 380px) {
  .main-nav { gap: 0.6rem; }
}