/* ================================================================
   RiskHelper.ai — Shared Stylesheet
   Used by: index.html, terms.html, contact.html
================================================================ */

:root {
  --font-brand: var(--font-display);
  --font-ui: var(--font-body);

  --bg-0: var(--color-navy-deep);
  --bg-1: var(--color-navy);
  --bg-2: var(--color-navy-light);
  --surface-0: var(--color-surface-dark-soft);
  --surface-1: var(--color-surface-dark);
  --surface-2: var(--color-navy-light);

  --line-soft: var(--color-border-dark-soft);
  --line-strong: var(--color-border-dark-strong);

  --text-hi: var(--color-text-inverse);
  --text-mid: var(--color-text-inverse-muted);
  --text-lo: var(--color-text-inverse-subtle);

  --cyan: var(--color-cyan);
  --cyan-strong: var(--color-cyan-deep);
  --orange: var(--color-amber);
  --orange-hover: var(--color-amber-dark);

  --green: #2CCD6F;
  --amber: #E4B15B;
  --red: #E36A5D;

  --r-btn: 10px;
  --r-card: 16px;

  --shadow-soft: 0 8px 20px rgba(2, 10, 32, 0.24);
  --shadow-card: 0 18px 40px rgba(2, 10, 32, 0.25);
  --logo-size: 46px;
  --logo-size-mobile: 40px;

  --ease: 180ms cubic-bezier(0.4, 0, 0.2, 1);
  --col-max: 1140px;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-ui);
  color: var(--text-hi);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding-top: 74px;
  background:
    radial-gradient(circle at 20% 10%, var(--color-cyan-glow), transparent 36%),
    radial-gradient(circle at 85% 30%, var(--color-amber-glow), transparent 42%),
    linear-gradient(180deg, var(--bg-1) 0%, var(--bg-0) 68%);
}

h1, h2 {
  letter-spacing: -0.02em;
}

h1 {
  font-family: var(--font-display, 'Playfair Display', Georgia, serif);
  font-size: clamp(2.5rem, 5vw, var(--text-6xl));
  line-height: var(--leading-tight);
  font-weight: 700;
  color: inherit;
}

h2 {
  font-family: var(--font-display, 'Playfair Display', Georgia, serif);
  font-size: clamp(1.75rem, 3vw, var(--text-4xl));
  line-height: var(--leading-snug);
  font-weight: 700;
  color: inherit;
  margin-bottom: 20px;
}

h3 {
  font-family: var(--font-body, 'DM Sans', system-ui, sans-serif);
  font-size: var(--text-xl);
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--color-amber-dark);
  margin-bottom: var(--space-2);
}

.bg-navy h3 {
  color: var(--color-cyan-soft);
}

h4 {
  font-family: var(--font-ui);
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-hi);
}

p {
  font-family: var(--font-body, 'DM Sans', system-ui, sans-serif);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--text-mid);
}

li {
  font-family: var(--font-ui);
  font-size: 1.02rem;
  font-weight: 430;
  color: var(--text-mid);
  line-height: 1.68;
}

a {
  color: var(--cyan);
  text-decoration: none;
  transition: color var(--ease);
}

a:hover {
  color: var(--color-cyan-soft);
  text-decoration: none;
}

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--color-focus-ring);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

blockquote {
  font-family: var(--font-display);
  font-style: italic;
  font-size: var(--text-2xl);
  line-height: var(--leading-snug);
  color: var(--color-text-inverse);
  border-left: 4px solid var(--color-amber);
  padding-left: var(--space-6);
  margin: var(--space-8) 0;
}

.container {
  max-width: var(--col-max);
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
}

.top-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 74px;
  border-bottom: 1px solid var(--line-soft);
  background: var(--color-surface-dark);
  -webkit-backdrop-filter: blur(10px);
          backdrop-filter: blur(10px);
  z-index: 100;
  display: flex;
  align-items: center;
}

.nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  gap: 20px;
}

.logo {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
}

.logo-lockup {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-wrap: nowrap;
  white-space: nowrap;
}

.logo-shield {
  height: var(--logo-size);
  width: auto;
  display: block;
  flex: 0 0 auto;
}

.logo-title {
  font-family: var(--font-brand);
  font-size: 1.55rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--color-cyan);
}

.footer-brand .logo-lockup {
  margin-bottom: 16px;
}

.footer-brand .logo-title {
  font-size: 1.7rem;
}

.nav-links {
  display: flex;
  gap: 24px;
  align-items: center;
}

.nav-link {
  font-family: var(--font-ui);
  font-size: 0.95rem;
  font-weight: 550;
  color: var(--text-mid);
}

.nav-link:hover,
.nav-link:focus-visible {
  color: var(--text-hi);
}

.nav-cta {
  background-color: var(--color-amber);
  color: var(--color-white) !important;
  padding: var(--space-2) var(--space-6);
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: var(--text-sm);
  text-decoration: none;
  border: 1px solid var(--color-amber-dark);
  box-shadow: var(--shadow-sm);
  transition: background-color 0.15s ease, border-color 0.15s ease, transform var(--ease);
}

.nav-cta:hover {
  background-color: var(--color-amber-dark);
}

.hamburger {
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.hamburger svg {
  width: 24px;
  height: 24px;
  stroke: var(--text-hi);
  stroke-width: 2;
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 74px;
  left: 0;
  right: 0;
  background: var(--bg-0);
  border-bottom: 1px solid var(--line-soft);
  padding: 20px 24px 24px;
  box-shadow: var(--shadow-soft);
  z-index: 99;
  flex-direction: column;
  gap: 14px;
}

.mobile-menu.open {
  display: flex;
}

.mobile-menu .nav-link {
  font-size: 1.05rem;
  padding: 8px 0;
  border-bottom: 1px solid var(--line-soft);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-ui);
  font-size: 1rem;
  font-weight: 700;
  padding: 13px 26px;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  border-radius: 6px;
  line-height: 1;
  transition: transform var(--ease), background var(--ease), color var(--ease), border-color var(--ease);
}

.btn:hover {
  text-decoration: none;
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(1px);
}

.btn-accent {
  background: var(--orange);
  color: var(--color-white);
  border-color: var(--color-amber-dark);
  border-bottom: 3px solid var(--color-amber-dark);
}

.btn-accent:hover {
  background: var(--orange-hover);
  color: var(--color-white);
  border-bottom-color: var(--color-amber-dark);
}

.btn-accent:active {
  border-bottom-width: 1px;
}

.btn-ghost {
  background: var(--surface-0);
  color: var(--text-hi);
  border-color: var(--line-strong);
  border-bottom: 3px solid var(--cyan-strong);
}

.btn-ghost:hover {
  border-color: var(--line-strong);
  border-bottom-color: var(--cyan-strong);
  background: var(--surface-1);
}

.btn-ghost:active {
  border-bottom-width: 1px;
}

.nav-btn {
  padding: 10px 18px;
  font-size: 0.9rem;
}

.card {
  background: var(--surface-1);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-card);
  box-shadow: var(--shadow-card);
  padding: 28px 24px;
}

.card h3,
.card h4 {
  color: var(--text-hi);
}

.card p,
.card li {
  color: var(--text-mid);
}

footer {
  background: var(--color-surface-dark);
  border-top: 1px solid var(--line-soft);
  padding: 58px 0 28px;
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 34px;
  margin-bottom: 52px;
}

.footer-tagline {
  margin-top: 16px;
  font-size: 0.96rem;
  color: var(--text-mid);
}

.footer-col h4 {
  font-size: 0.84rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-hi);
  margin-bottom: 18px;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 11px;
}

.footer-col a {
  color: var(--text-mid);
}

.footer-col a:hover {
  color: var(--text-hi);
}

.footer-bottom {
  border-top: 1px solid var(--line-soft);
  padding-top: 22px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px 20px;
  font-size: 0.9rem;
  color: var(--text-lo);
}

.footer-bottom a {
  text-decoration: underline;
}

@media (max-width: 980px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }
}

@media (max-width: 768px) {
  nav a {
    min-height: 44px;
    display: flex;
    align-items: center;
    padding: var(--space-3) var(--space-4);
  }

  .mobile-menu a {
    min-height: 44px;
    display: flex;
    align-items: center;
    padding: var(--space-3) var(--space-4);
  }

  body {
    padding-top: 74px;
  }

  .container {
    padding: 0 18px;
  }

  .nav-links {
    display: none;
  }

  .hamburger {
    display: block;
  }

  .btn {
    width: 100%;
    max-width: 360px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 560px) {
  .logo-shield {
    height: var(--logo-size-mobile);
  }

  .logo-lockup {
    gap: 8px;
  }

  .logo-title {
    font-size: 1.28rem;
  }

  .footer-brand .logo-title {
    font-size: 1.42rem;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }
}