/* Contact Page Enhancements */
.lead {
  font-size: 1.15rem;
  color: var(--text-light);
  margin-bottom: 2rem;
}
.contact-card {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 2rem 1.5rem 1.5rem 1.5rem;
  margin-bottom: 1.5rem;
}
.contact-card h2 {
  margin-top: 0;
  color: var(--brand);
  font-size: 1.1rem;
}
.text-muted {
  color: var(--text-light);
  font-size: 0.95em;
}
.contact-form {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 2rem 1.5rem 1.5rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}
.contact-form h2 {
  margin-top: 0;
  color: var(--brand);
  font-size: 1.1rem;
}
.contact-form label {
  font-size: 0.97rem;
  color: var(--text-light);
  font-weight: 500;
  margin-bottom: 0.2rem;
}
.contact-form input,
.contact-form textarea {
  font: inherit;
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #fff;
  resize: vertical;
  margin-top: 0.2rem;
  margin-bottom: 0.5rem;
  transition: border 0.2s;
}
.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--brand-accent);
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}
.contact-form .btn {
  align-self: flex-start;
  margin-top: 0.5rem;
}
html,
body {
  height: 100%;
  margin: 0;
  padding: 0;
}

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

main {
  flex: 1;
}
/* Base Reset / Modern Normalize Lite */
* {
  box-sizing: border-box;
}
html {
  -webkit-text-size-adjust: 100%;
}
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Inter, Helvetica,
    Arial, sans-serif;
  line-height: 1.5;
  color: #1c1f24;
  background: #fff;
}
img,
svg {
  max-width: 100%;
  height: auto;
  display: block;
}
a {
  color: #1b4ed8;
  text-decoration: none;
}
a:hover,
a:focus {
  text-decoration: underline;
}

/* Light Theme Variables */
:root {
  --bg: #ffffff;
  --bg-alt: #f5f7fa;
  --border: #d9e0e8;
  --text: #1c1f24;
  --text-light: #4c5664;
  --brand: #0e3fa9;
  --brand-accent: #1b4ed8;
  --focus: #ffbf47;
  --radius: 6px;
  --container: 1150px;
  --shadow-sm: 0 2px 4px rgba(20, 30, 40, 0.06);
  --shadow-md: 0 4px 16px -2px rgba(20, 30, 40, 0.12);
  --gradient: linear-gradient(135deg, #0e3fa9, #1b4ed8 55%, #4983ff);
  --footer-bg: #10141b;
  --footer-text: #d1d6dd;
}

/* Dark Theme Variables */
:root[data-theme="dark"] {
  --bg: #0f141a;
  --bg-alt: #182028;
  --border: #24313d;
  --text: #e4e8ec;
  --text-light: #a3b1bf;
  --brand: #4d8dff;
  --brand-accent: #75a8ff;
  --gradient: linear-gradient(135deg, #183765, #215699 55%, #3c79d9);
  --footer-bg: #060a0f;
  --footer-text: #9eabb7;
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 20px -2px rgba(0, 0, 0, 0.55);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]):not([data-theme="dark"]) {
    color-scheme: dark;
    --bg: #0f141a;
    --bg-alt: #182028;
    --border: #24313d;
    --text: #e4e8ec;
    --text-light: #a3b1bf;
    --brand: #4d8dff;
    --brand-accent: #75a8ff;
    --gradient: linear-gradient(135deg, #183765, #215699 55%, #3c79d9);
    --footer-bg: #060a0f;
    --footer-text: #9eabb7;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 4px 20px -2px rgba(0, 0, 0, 0.55);
  }
}

body {
  background: var(--bg);
  color: var(--text);
  transition: background 0.4s ease, color 0.4s ease;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
h1,
h2,
h3,
h4 {
  line-height: 1.2;
  font-weight: 600;
  letter-spacing: -0.5px;
}
h1 {
  font-size: clamp(2.2rem, 4vw, 3.1rem);
  margin: 0.2em 0 0.6em;
}
h2 {
  font-size: clamp(1.55rem, 2.4vw, 2.05rem);
  margin: 2.2rem 0 0.8rem;
}
h3 {
  font-size: clamp(1.2rem, 1.9vw, 1.4rem);
  margin: 1.8rem 0 0.6rem;
}
p {
  margin: 0 0 1.1em;
  max-width: 68ch;
}
ul {
  padding-left: 1.2em;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.25rem;
}
.narrow {
  max-width: 820px;
}

.site-header {
  position: sticky;
  top: 0;
  backdrop-filter: blur(8px);
  background: rgba(255, 255, 255, 0.85);
  border-bottom: 1px solid var(--border);
  z-index: 50;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
}
.logo {
  font-weight: 600;
  font-size: 1.35rem;
  letter-spacing: -0.5px;
  color: var(--brand);
}

.nav-toggle {
  display: none;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 0.5rem;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: #1c1f24;
  margin: 5px 0;
  transition: 0.3s;
}

.nav-menu {
  list-style: none;
  display: flex;
  gap: 1.5rem;
  margin: 0;
  padding: 0;
}
.nav-menu a {
  padding: 0.75rem 0.25rem;
  font-weight: 500;
  position: relative;
  text-decoration: none;
}
/* Remove underline on hover/focus for nav links */
.nav-menu a:hover,
.nav-menu a:focus {
  text-decoration: none;
}
.nav-menu a.active::after,
.nav-menu a:hover::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 6px;
  width: 100%;
  height: 2px;
  background: var(--brand-accent);
  border-radius: 2px;
}

.hero {
  background: var(--gradient);
  color: #fff;
  padding: 6rem 0 4.5rem;
  position: relative;
  overflow: hidden;
}
.hero-inner {
  position: relative;
}
.hero p {
  font-size: 1.15rem;
  max-width: 52ch;
}

.features {
  padding: 3.5rem 0 1rem;
}
.grid.three {
  display: grid;
  gap: 1.75rem;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  margin-top: 1.5rem;
}
.card {
  background: var(--bg-alt);
  padding: 1.35rem 1.25rem 1.25rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: 0.25s;
}
.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.bio {
  padding: 2rem 0 4rem;
}
.bio-grid {
  display: grid;
  gap: 2.5rem;
  grid-template-columns: 1fr;
}

.cta-band {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  margin: 4rem 0;
}
.cta-band-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem 0;
  font-size: 1.1rem;
}

.checklist {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
}
.checklist li {
  position: relative;
  padding-left: 1.4rem;
  margin: 0.5rem 0;
}
.checklist li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--brand);
  font-weight: 600;
}

.contact-grid {
  display: grid;
  gap: 2.5rem;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  margin: 1.5rem 0 3rem;
}
form label {
  display: flex;
  flex-direction: column;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 600;
  margin-bottom: 0.9rem;
  gap: 0.35rem;
  color: var(--text-light);
}
form input,
form textarea {
  font: inherit;
  padding: 0.75rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #fff;
  resize: vertical;
}
form input:focus,
form textarea:focus {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

.btn {
  display: inline-block;
  background: var(--brand);
  color: #fff;
  padding: 0.9rem 1.35rem;
  border-radius: var(--radius);
  font-weight: 600;
  letter-spacing: 0.5px;
  font-size: 0.9rem;
  text-transform: uppercase;
  border: 1px solid var(--brand);
  transition: 0.25s;
}
.btn:hover,
.btn:focus {
  background: var(--brand-accent);
  border-color: var(--brand-accent);
  text-decoration: none;
}
.btn.cta {
  background: #fff;
  color: #0e3fa9;
  border-color: #fff;
}
.btn.cta:hover {
  background: rgba(255, 255, 255, 0.9);
}
.text-link {
  font-weight: 600;
}

.site-footer {
  background: #10141b;
  color: #d1d6dd;
  margin-top: 4rem;
  font-size: 0.85rem;
}
.footer-inner {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  padding: 2.75rem 1.25rem;
}
.site-footer a {
  color: #fff;
}
.footer-meta {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.no-margin {
  margin: 0;
}
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  border: 0;
}

/* Dark Adjustments */
:root[data-theme="dark"] .card {
  background: #1d2731;
}
:root[data-theme="dark"] .cta-band {
  background: #16212b;
}
:root[data-theme="dark"] .nav-menu {
  background: #131a21;
}
:root[data-theme="dark"] .site-header {
  background: rgba(15, 20, 26, 0.78);
}
:root[data-theme="dark"] .hero {
  color: #fff;
}
:root[data-theme="dark"] .btn.cta {
  background: #fff;
}
:root[data-theme="dark"] .btn.cta:hover {
  background: rgba(255, 255, 255, 0.85);
}
:root[data-theme="dark"] .site-footer {
  background: var(--footer-bg);
  color: var(--footer-text);
}
:root[data-theme="dark"] a {
  color: var(--brand-accent);
}

/* Theme Toggle */
.theme-toggle {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: none;
  border: 1px solid var(--border);
  color: var(--text-light);
  padding: 0.55rem 0.85rem;
  border-radius: var(--radius);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  cursor: pointer;
  transition: 0.25s;
}
.theme-toggle:hover,
.theme-toggle:focus {
  background: var(--bg-alt);
  color: var(--text);
}
.theme-toggle svg {
  width: 18px;
  height: 18px;
}

/* Responsive Navigation */
@media (max-width: 800px) {
  .nav-toggle {
    display: block;
  }
  .nav-menu {
    position: absolute;
    right: 1rem;
    top: 64px;
    flex-direction: column;
    background: var(--bg);
    border: 1px solid var(--border);
    padding: 0.75rem 0.9rem;
    min-width: 200px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    opacity: 0;
    transform: translateY(-6px);
    pointer-events: none;
    transition: 0.25s;
  }
  .nav-menu.open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }
  .nav-menu a {
    padding: 0.55rem 0.35rem;
  }
}

/* Subpage spacing */
.subpage main {
  padding: 2.5rem 0 3.5rem;
}

/* Accessibility */
:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

/* Print */
@media print {
  .nav-toggle,
  .nav-menu,
  .btn {
    display: none !important;
  }
  body {
    color: #000;
  }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  body {
    transition: none;
  }
  .card,
  .nav-menu,
  .btn {
    transition: none;
  }
}