/* ============================================================
   VA Pay Calc — vapaycalc.com
   Direct-to-veteran VA disability pay calculator.
   Palette: deep navy + US-flag red accent.
   Typography: Inter (system fallback).
   ============================================================ */

:root {
  --bg: #fafafa;
  --surface: #ffffff;
  --surface-muted: #f3f4f6;
  --text: #1a1a1a;
  --muted: #525252;
  --line: #e5e5e5;
  --navy: #0c2340;             /* deep US-flag navy */
  --navy-strong: #061629;
  --navy-soft: #1c365b;
  --red: #bf0a30;              /* US-flag red */
  --red-strong: #8b0822;
  --result-bg: #0c2340;        /* sticky card */
  --result-fg: #ffffff;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 10px 30px rgba(12, 35, 64, 0.08);
  --shadow-strong: 0 14px 40px rgba(12, 35, 64, 0.18);
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; display: block; }

a { color: var(--navy); text-decoration: none; }
a:hover { color: var(--red); }

.skip-link {
  position: absolute;
  left: -9999px;
  background: var(--navy);
  color: #fff;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  z-index: 10;
}
.skip-link:focus-visible { left: 10px; top: 10px; }

.container {
  width: min(1080px, 92vw);
  margin: 0 auto;
}

/* ============================================================
   Header
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  gap: 20px;
}
.brand {
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  color: var(--navy);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.brand:hover { color: var(--navy); }
.brand-mark {
  display: inline-block;
  width: auto;
  height: 32px;
  object-fit: contain;
}
.site-nav {
  display: flex;
  gap: 22px;
  align-items: center;
}
.site-nav a {
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 500;
}
.site-nav a:hover { color: var(--text); }
.site-nav a.nav-cfile-link { color: var(--red); font-weight: 700; }
.site-nav a.nav-cfile-link:hover { color: var(--red-strong); }

.nav-dropdown {
  position: relative;
}
.nav-dropdown summary {
  list-style: none;
  cursor: pointer;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.nav-dropdown summary::-webkit-details-marker { display: none; }
.nav-dropdown summary::after {
  content: "\25BE";
  font-size: 0.72rem;
  color: var(--muted);
  transition: transform 0.15s ease;
}
.nav-dropdown[open] summary { color: var(--text); }
.nav-dropdown[open] summary::after { transform: rotate(180deg); }
.nav-dropdown-menu {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  min-width: 240px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface);
  box-shadow: var(--shadow);
  padding: 8px;
  display: grid;
  gap: 2px;
  z-index: 30;
}
.nav-dropdown-menu a {
  display: block;
  padding: 8px 10px;
  border-radius: 6px;
}
.nav-dropdown-menu a:hover {
  background: var(--surface-muted);
}
.nav-dropdown-menu--learn {
  left: auto;
  right: 0;
  width: 390px;
  padding: 10px;
  gap: 4px;
}
.nav-dropdown-menu--learn .nav-learn-link {
  padding: 11px 12px;
  border: 1px solid transparent;
  border-radius: 8px;
}
.nav-dropdown-menu--learn .nav-learn-link:hover {
  border-color: var(--line);
  background: var(--surface-muted);
}
.nav-learn-title {
  display: block;
  color: var(--text);
  font-size: 0.92rem;
  font-weight: 700;
  line-height: 1.3;
}
.nav-learn-description {
  display: block;
  margin-top: 3px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 400;
  line-height: 1.4;
}

.nav-toggle {
  display: none;
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: var(--radius-sm);
  padding: 7px 11px;
  font: inherit;
  font-size: 0.88rem;
  cursor: pointer;
}

@media (max-width: 900px) {
  .nav-toggle { display: inline-flex; }
  .site-nav {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    padding: 16px 20px 18px;
    background: var(--surface);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  .site-nav.is-open { display: flex; }
  .nav-dropdown { width: 100%; }
  .nav-dropdown summary { width: 100%; }
  .nav-dropdown summary::after { margin-left: auto; }
  .nav-dropdown-menu {
    position: static;
    margin-top: 8px;
    width: 100%;
    min-width: 0;
    box-shadow: none;
    padding: 4px;
  }
  .nav-dropdown-menu--learn {
    width: 100%;
  }
  .nav-dropdown-menu--learn .nav-learn-link {
    padding: 10px;
  }
  .brand { font-size: 0.95rem; }
}
@media (max-width: 380px) {
  .brand { font-size: 0.85rem; gap: 6px; }
  .brand-mark { height: 26px; }
}

/* ============================================================
   Sections + typography
   ============================================================ */
.section {
  padding: 56px 0;
}
.section-tight { padding: 36px 0; }

h1, h2, h3 {
  margin: 0 0 12px;
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--text);
}
h1 { font-size: clamp(2rem, 4vw, 2.85rem); font-weight: 800; }
h2 { font-size: clamp(1.45rem, 2.6vw, 1.85rem); font-weight: 700; }
h3 { font-size: 1.1rem; font-weight: 600; }
p  { margin: 0; color: var(--muted); }

.eyebrow {
  margin: 0 0 10px;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--red);
  font-weight: 700;
}

.lead {
  font-size: 1.08rem;
  max-width: 60ch;
  color: var(--muted);
}