/* ============================================
   Dual Tax Residency Risk Checker — Design System
   ============================================ */

:root {
  --navy-950: #0a1628;
  --navy-900: #0f1f38;
  --navy-800: #16294a;
  --navy-700: #1e3660;
  --gold-500: #c9a227;
  --gold-400: #dab84a;
  --white: #ffffff;
  --gray-50: #f7f8fa;
  --gray-100: #eef0f4;
  --gray-200: #dfe3ea;
  --gray-400: #9aa4b2;
  --gray-600: #5a6472;
  --gray-800: #2c3440;
  --risk-high: #c0392b;
  --risk-high-bg: #fdecea;
  --risk-med: #b7791f;
  --risk-med-bg: #fef6e7;
  --risk-low: #1e7e4c;
  --risk-low-bg: #e9f7ef;
  --radius: 10px;
  --shadow-sm: 0 1px 3px rgba(10, 22, 40, 0.08);
  --shadow-md: 0 8px 24px rgba(10, 22, 40, 0.12);
  --max-width: 1120px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  color: var(--gray-800);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a { color: var(--navy-700); text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3, h4 { font-family: Georgia, "Times New Roman", serif; color: var(--navy-950); line-height: 1.25; margin: 0 0 16px; }
h1 { font-size: 2.6rem; }
h2 { font-size: 1.9rem; margin-top: 48px; }
h3 { font-size: 1.3rem; }
p { margin: 0 0 16px; color: var(--gray-800); }
.lede { font-size: 1.2rem; color: var(--gray-600); }

.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--gold-500);
  margin-bottom: 12px;
}

/* ---------- Header / Nav ---------- */
.site-header {
  background: var(--navy-950);
  border-bottom: 1px solid var(--navy-800);
  position: sticky;
  top: 0;
  z-index: 100;
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  max-width: var(--max-width);
  margin: 0 auto;
}
.nav-brand {
  color: var(--white);
  font-family: Georgia, serif;
  font-size: 1.15rem;
  font-weight: 700;
  text-decoration: none;
  letter-spacing: 0.01em;
}
.nav-brand span { color: var(--gold-400); }
.nav-links {
  display: flex;
  gap: 28px;
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a { color: var(--gray-200); font-size: 0.95rem; }
.nav-links a:hover { color: var(--gold-400); text-decoration: none; }
.nav-cta {
  background: var(--gold-500);
  color: var(--navy-950) !important;
  padding: 10px 20px;
  border-radius: 6px;
  font-weight: 700;
  font-size: 0.9rem !important;
}
.nav-cta:hover { background: var(--gold-400); text-decoration: none; }
.nav-toggle { display: none; }

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(160deg, var(--navy-950) 0%, var(--navy-800) 100%);
  color: var(--white);
  padding: 88px 0 76px;
}
.hero h1 { color: var(--white); max-width: 780px; }
.hero .lede { color: var(--gray-200); max-width: 620px; }
.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 40px;
  flex-wrap: wrap;
}
.hero-stat strong { display: block; font-size: 1.8rem; color: var(--gold-400); font-family: Georgia, serif; }
.hero-stat span { font-size: 0.85rem; color: var(--gray-400); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: 14px 30px;
  border-radius: 6px;
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  border: none;
  text-align: center;
}
.btn-primary { background: var(--gold-500); color: var(--navy-950); }
.btn-primary:hover { background: var(--gold-400); text-decoration: none; }
.btn-secondary { background: transparent; color: var(--white); border: 1.5px solid rgba(255,255,255,0.4); }
.btn-secondary:hover { border-color: var(--gold-400); color: var(--gold-400); text-decoration: none; }
.btn-outline-navy { background: transparent; color: var(--navy-800); border: 1.5px solid var(--navy-700); }
.btn-outline-navy:hover { background: var(--navy-950); color: var(--white); text-decoration: none; }
.btn-block { width: 100%; }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }

/* ---------- Sections ---------- */
section { padding: 64px 0; }
.section-alt { background: var(--gray-50); }
.section-center { text-align: center; }

.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; margin-top: 32px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; margin-top: 32px; }

.card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-sm);
}
.card h3 { margin-bottom: 10px; }
.card-icon { font-size: 1.8rem; margin-bottom: 12px; display: block; }

.pain-quote {
  border-left: 4px solid var(--gold-500);
  background: var(--navy-950);
  color: var(--gray-200);
  padding: 28px 32px;
  border-radius: 0 var(--radius) var(--radius) 0;
  font-family: Georgia, serif;
  font-size: 1.15rem;
  font-style: italic;
  margin: 32px 0;
}

/* ---------- Country grid ---------- */
.country-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  margin-top: 32px;
}
.country-tile {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 20px 16px;
  text-align: center;
  transition: transform 0.15s, box-shadow 0.15s;
}
.country-tile:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); text-decoration: none; }
.country-tile .flag { font-size: 2rem; display: block; margin-bottom: 8px; }
.country-tile .name { font-weight: 700; color: var(--navy-950); display: block; font-size: 0.95rem; }
.country-tile .rule { color: var(--gray-600); font-size: 0.78rem; }

/* ---------- Tool / Multi-step form ---------- */
.tool-wrap {
  max-width: 700px;
  margin: 0 auto;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 14px;
  box-shadow: var(--shadow-md);
  overflow: hidden;
}
.tool-progress {
  display: flex;
  gap: 4px;
  padding: 20px 32px 0;
}
.tool-progress-bar {
  flex: 1;
  height: 5px;
  background: var(--gray-200);
  border-radius: 3px;
  overflow: hidden;
}
.tool-progress-bar .fill { height: 100%; background: var(--gold-500); width: 0%; transition: width 0.3s; }
.tool-step-label {
  padding: 8px 32px 0;
  font-size: 0.8rem;
  color: var(--gray-400);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-weight: 700;
}
.tool-body { padding: 20px 32px 32px; }
.step { display: none; }
.step.active { display: block; animation: fadein 0.25s ease; }
@keyframes fadein { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: translateY(0); } }

.step h2 { font-size: 1.5rem; margin-top: 0; }
.step .help { color: var(--gray-600); font-size: 0.92rem; margin-top: -8px; }

.field { margin-bottom: 22px; }
.field label { display: block; font-weight: 700; margin-bottom: 8px; color: var(--navy-950); font-size: 0.95rem; }
select, input[type="number"], input[type="text"], input[type="email"] {
  width: 100%;
  padding: 13px 14px;
  border: 1.5px solid var(--gray-200);
  border-radius: 8px;
  font-size: 1rem;
  font-family: inherit;
  color: var(--gray-800);
  background: var(--white);
}
select:focus, input:focus { outline: none; border-color: var(--gold-500); }

.option-row { display: flex; gap: 12px; flex-wrap: wrap; }
.option-btn {
  flex: 1;
  min-width: 130px;
  padding: 16px;
  border: 1.5px solid var(--gray-200);
  border-radius: 8px;
  background: var(--white);
  cursor: pointer;
  text-align: center;
  font-weight: 600;
  color: var(--gray-800);
  transition: all 0.15s;
}
.option-btn:hover { border-color: var(--gold-500); }
.option-btn.selected {
  border-color: var(--gold-500);
  background: #fdf7e8;
  color: var(--navy-950);
}
.option-btn .sub { display: block; font-weight: 400; font-size: 0.8rem; color: var(--gray-600); margin-top: 4px; }

.step-nav { display: flex; justify-content: space-between; margin-top: 32px; gap: 12px; }
.step-nav .btn { flex: 1; }
.link-back { background: none; border: none; color: var(--gray-600); cursor: pointer; font-size: 0.95rem; padding: 14px 20px; }
.link-back:hover { color: var(--navy-950); }

/* ---------- Results ---------- */
.result-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  border-radius: 40px;
  font-weight: 800;
  font-size: 1.1rem;
  margin-bottom: 20px;
}
.result-badge.high { background: var(--risk-high-bg); color: var(--risk-high); }
.result-badge.medium { background: var(--risk-med-bg); color: var(--risk-med); }
.result-badge.low { background: var(--risk-low-bg); color: var(--risk-low); }

.result-meter { height: 10px; border-radius: 6px; background: var(--gray-200); overflow: hidden; margin-bottom: 24px; }
.result-meter .fill { height: 100%; border-radius: 6px; }
.result-meter .fill.high { background: var(--risk-high); }
.result-meter .fill.medium { background: var(--risk-med); }
.result-meter .fill.low { background: var(--risk-low); }

.trigger-list { list-style: none; margin: 0 0 24px; padding: 0; }
.trigger-list li {
  padding: 14px 16px;
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  margin-bottom: 10px;
  font-size: 0.95rem;
}
.trigger-list li strong { color: var(--navy-950); }

.deadline-box {
  background: var(--navy-950);
  color: var(--white);
  border-radius: 10px;
  padding: 20px 24px;
  margin-bottom: 24px;
}
.deadline-box .eyebrow { color: var(--gold-400); }
.deadline-box p { color: var(--gray-200); margin: 0; }
.deadline-box strong { color: var(--gold-400); font-size: 1.2rem; }

/* ---------- Lead-gen box ---------- */
.leadgen-box {
  border: 2px solid var(--gold-500);
  border-radius: 12px;
  padding: 28px;
  background: #fdf7e8;
  margin-top: 8px;
}
.leadgen-box h3 { margin-bottom: 6px; }
.leadgen-box p { color: var(--gray-600); font-size: 0.95rem; }
.leadgen-form { display: flex; gap: 10px; margin-top: 16px; flex-wrap: wrap; }
.leadgen-form input { flex: 1; min-width: 200px; }
.form-note { font-size: 0.78rem; color: var(--gray-400); margin-top: 10px; }

.affiliate-strip {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 24px;
}
.affiliate-card {
  display: block;
  border: 1px dashed var(--gray-400);
  border-radius: 10px;
  padding: 18px;
  font-size: 0.88rem;
  color: var(--gray-600);
  background: var(--gray-50);
  text-decoration: none;
  transition: border-color 0.15s;
}
.affiliate-card:hover { border-color: var(--gold-500); text-decoration: none; }
.affiliate-card strong { display: block; color: var(--navy-950); margin-bottom: 4px; }
.affiliate-card .tag { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--gray-400); }

/* ---------- Country guide pages ---------- */
.rule-card {
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 16px;
}
.rule-card h3 { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.rule-card .num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--navy-950);
  color: var(--gold-400);
  font-size: 0.85rem;
  font-weight: 800;
  flex-shrink: 0;
}
.pitfall-box {
  background: var(--risk-high-bg);
  border-left: 4px solid var(--risk-high);
  padding: 20px 24px;
  border-radius: 0 var(--radius) var(--radius) 0;
  margin: 24px 0;
}
.pitfall-box strong { color: var(--risk-high); }

.country-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 24px 0 40px;
}
.country-nav a {
  font-size: 0.82rem;
  padding: 6px 12px;
  border: 1px solid var(--gray-200);
  border-radius: 20px;
  color: var(--gray-600);
}
.country-nav a.current { background: var(--navy-950); color: var(--white); border-color: var(--navy-950); }
.country-nav a:hover { text-decoration: none; border-color: var(--gold-500); }

/* ---------- Disclaimer ---------- */
.disclaimer-banner {
  background: var(--gray-100);
  border-top: 1px solid var(--gray-200);
  border-bottom: 1px solid var(--gray-200);
  padding: 14px 0;
  font-size: 0.82rem;
  color: var(--gray-600);
  text-align: center;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--navy-950);
  color: var(--gray-400);
  padding: 56px 0 32px;
  margin-top: 40px;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px; }
.footer-grid h4 { color: var(--white); font-size: 0.9rem; text-transform: uppercase; letter-spacing: 0.05em; font-family: inherit; }
.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid li { margin-bottom: 8px; }
.footer-grid a { color: var(--gray-400); font-size: 0.9rem; }
.footer-grid a:hover { color: var(--gold-400); }
.footer-brand { color: var(--white); font-family: Georgia, serif; font-size: 1.1rem; margin-bottom: 10px; display: block; }
.footer-bottom {
  border-top: 1px solid var(--navy-800);
  margin-top: 40px;
  padding-top: 24px;
  font-size: 0.8rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .grid-3, .grid-2, .footer-grid, .affiliate-strip { grid-template-columns: 1fr; }
  .country-grid { grid-template-columns: repeat(3, 1fr); }
  .hero h1 { font-size: 2rem; }
  .nav-links { display: none; }
}
@media (max-width: 560px) {
  .country-grid { grid-template-columns: repeat(2, 1fr); }
  .tool-body { padding: 20px; }
  .step-nav { flex-direction: column-reverse; }
}