/* ============================================
   DAVID BILLS — Personal Website
   Navy & White | Finance Professional
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:wght@300;400;500;600;700&family=DM+Sans:wght@300;400;500;600&display=swap');

:root {
  --navy:       #0B2545;
  --navy-mid:   #134074;
  --navy-light: #1A5276;
  --gold:       #C9A84C;
  --gold-light: #E8C97A;
  --white:      #FFFFFF;
  --off-white:  #F8F9FB;
  --gray-light: #EEF1F5;
  --gray:       #8A97A8;
  --text:       #1C2B3A;
  --text-light: #4A5568;

  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body:    'DM Sans', sans-serif;

  --max-width: 1100px;
  --nav-height: 72px;
  --radius: 4px;
  --transition: 0.3s ease;
}

/* ---- Reset & Base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-body);
  color: var(--text);
  background: var(--white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ---- Navigation ---- */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-height);
  background: var(--navy);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 48px;
  z-index: 1000;
  border-bottom: 1px solid rgba(201,168,76,0.25);
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--white);
  letter-spacing: 0.02em;
}

.nav-logo span { color: var(--gold); }

.nav-links {
  display: flex;
  gap: 36px;
  align-items: center;
}

.nav-links a {
  font-size: 0.82rem;
  font-weight: 500;
  color: rgba(255,255,255,0.75);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: color var(--transition);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 1px;
  background: var(--gold);
  transition: width var(--transition);
}

.nav-links a:hover,
.nav-links a.active { color: var(--white); }
.nav-links a:hover::after,
.nav-links a.active::after { width: 100%; }

.nav-cta {
  padding: 8px 20px;
  border: 1px solid var(--gold);
  border-radius: var(--radius);
  color: var(--gold) !important;
  font-size: 0.78rem !important;
  letter-spacing: 0.12em !important;
  transition: all var(--transition) !important;
}

.nav-cta:hover {
  background: var(--gold) !important;
  color: var(--navy) !important;
}
.nav-cta::after { display: none !important; }

/* ---- Mobile hamburger ---- */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  transition: all var(--transition);
}

/* ---- Page Wrapper ---- */
main { padding-top: var(--nav-height); }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 40px;
}

/* ---- Section Styles ---- */
section { padding: 80px 0; }

.section-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 12px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 600;
  color: var(--navy);
  line-height: 1.2;
  margin-bottom: 20px;
}

.section-title.light { color: var(--white); }

.section-divider {
  width: 48px;
  height: 2px;
  background: var(--gold);
  margin-bottom: 40px;
}

/* ---- Hero (index.html) ---- */
.hero {
  min-height: calc(100vh - var(--nav-height));
  background: var(--navy);
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -100px; right: -100px;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(201,168,76,0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  opacity: 0.4;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 80px;
  align-items: center;
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 60px 40px;
}

.hero-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  border: 1px solid rgba(201,168,76,0.4);
  padding: 6px 16px;
  border-radius: 2px;
  margin-bottom: 28px;
}

.hero-name {
  font-family: var(--font-display);
  font-size: clamp(3rem, 6vw, 5rem);
  font-weight: 300;
  color: var(--white);
  line-height: 1.05;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.hero-name strong {
  font-weight: 600;
  display: block;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  color: var(--gold-light);
  font-weight: 400;
  margin-bottom: 28px;
  font-style: italic;
}

.hero-desc {
  font-size: 1rem;
  color: rgba(255,255,255,0.7);
  max-width: 520px;
  line-height: 1.8;
  margin-bottom: 44px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn-primary {
  padding: 13px 32px;
  background: var(--gold);
  color: var(--navy);
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: var(--radius);
  transition: all var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-primary:hover {
  background: var(--gold-light);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(201,168,76,0.3);
}

.btn-secondary {
  padding: 13px 32px;
  border: 1px solid rgba(255,255,255,0.3);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: var(--radius);
  transition: all var(--transition);
}

.btn-secondary:hover {
  border-color: var(--white);
  background: rgba(255,255,255,0.06);
}

/* Hero photo */
.hero-photo-wrap {
  position: relative;
  display: flex;
  justify-content: center;
}

.hero-photo-frame {
  position: relative;
  width: 320px;
  height: 380px;
}

.hero-photo-frame::before {
  content: '';
  position: absolute;
  top: -12px; left: -12px;
  right: 12px; bottom: 12px;
  border: 1px solid rgba(201,168,76,0.35);
  border-radius: var(--radius);
  z-index: 0;
}

.hero-photo-frame img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  border-radius: var(--radius);
  filter: grayscale(15%);
}

.hero-stats {
  display: flex;
  gap: 32px;
  margin-top: 48px;
  padding-top: 40px;
  border-top: 1px solid rgba(255,255,255,0.1);
}

.stat-item { text-align: left; }
.stat-num {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 600;
  color: var(--gold);
  line-height: 1;
}
.stat-label {
  font-size: 0.72rem;
  color: rgba(255,255,255,0.5);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-top: 4px;
}

/* ---- Skills Strip ---- */
.skills-strip {
  background: var(--off-white);
  padding: 40px 0;
  border-top: 1px solid var(--gray-light);
  border-bottom: 1px solid var(--gray-light);
}

.skills-strip-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

.skill-pill {
  padding: 8px 18px;
  background: var(--white);
  border: 1px solid var(--gray-light);
  border-radius: 100px;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--navy-mid);
  letter-spacing: 0.04em;
  transition: all var(--transition);
}

.skill-pill:hover {
  border-color: var(--navy);
  background: var(--navy);
  color: var(--white);
}

/* ---- Snapshot Section (index) ---- */
.snapshot {
  background: var(--white);
}

.snapshot-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  margin-top: 16px;
}

.snapshot-card {
  background: var(--off-white);
  padding: 40px 32px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.snapshot-card::before {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 2px;
  background: var(--gold);
  transition: width var(--transition);
}

.snapshot-card:hover { background: var(--navy); }
.snapshot-card:hover .snap-title,
.snapshot-card:hover .snap-body { color: var(--white); }
.snapshot-card:hover::before { width: 100%; }

.snap-icon {
  font-size: 1.8rem;
  margin-bottom: 16px;
}

.snap-title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 10px;
  transition: color var(--transition);
}

.snap-body {
  font-size: 0.88rem;
  color: var(--text-light);
  line-height: 1.7;
  transition: color var(--transition);
}

/* ---- About Page ---- */
.about-hero {
  background: var(--navy);
  padding: 80px 0 0;
}

.about-hero-inner {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 80px;
  align-items: end;
  padding-bottom: 0;
}

.about-photo {
  width: 100%;
  height: 420px;
  object-fit: cover;
  object-position: center top;
  display: block;
}

.about-content { padding-bottom: 60px; }

.page-hero {
  background: var(--navy);
  padding: 70px 0;
}

.page-hero-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 12px;
}

.page-hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5vw, 3.5rem);
  font-weight: 300;
  color: var(--white);
  line-height: 1.1;
}

.page-hero-title strong { font-weight: 600; }

/* ---- Bio Block ---- */
.bio-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 80px;
  align-items: start;
}

.bio-text p {
  font-size: 1rem;
  color: var(--text-light);
  line-height: 1.85;
  margin-bottom: 20px;
}

.bio-text p:first-child {
  font-size: 1.15rem;
  color: var(--text);
  font-weight: 400;
}

.bio-sidebar {}

.sidebar-card {
  background: var(--off-white);
  border: 1px solid var(--gray-light);
  padding: 28px;
  margin-bottom: 20px;
  border-radius: var(--radius);
}

.sidebar-card-title {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 16px;
}

.sidebar-card ul li {
  font-size: 0.88rem;
  color: var(--text-light);
  padding: 6px 0;
  border-bottom: 1px solid var(--gray-light);
  display: flex;
  align-items: center;
  gap: 8px;
}

.sidebar-card ul li:last-child { border-bottom: none; }
.sidebar-card ul li::before { content: '—'; color: var(--gold); font-size: 0.7rem; }

/* ---- Experience Page ---- */
.exp-item {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 40px;
  padding: 48px 0;
  border-bottom: 1px solid var(--gray-light);
  position: relative;
}

.exp-item:last-child { border-bottom: none; }

.exp-meta {}
.exp-dates {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 6px;
}
.exp-location {
  font-size: 0.8rem;
  color: var(--gray);
}

.exp-content {}
.exp-role {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 4px;
}
.exp-company {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--navy-mid);
  margin-bottom: 20px;
  letter-spacing: 0.03em;
}
.exp-bullets { padding-left: 0; }
.exp-bullets li {
  font-size: 0.9rem;
  color: var(--text-light);
  padding: 5px 0 5px 20px;
  position: relative;
  line-height: 1.65;
}
.exp-bullets li::before {
  content: '';
  position: absolute;
  left: 0; top: 15px;
  width: 6px; height: 1px;
  background: var(--gold);
}

/* Education block */
.edu-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.edu-card {
  background: var(--navy);
  color: var(--white);
  padding: 36px;
  border-radius: var(--radius);
  position: relative;
  overflow: hidden;
}

.edu-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 3px; height: 100%;
  background: var(--gold);
}

.edu-degree {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 6px;
}

.edu-school {
  font-size: 0.88rem;
  color: var(--gold-light);
  font-weight: 500;
  margin-bottom: 12px;
}

.edu-detail {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.6);
}

/* Licenses */
.cert-grid {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.cert-badge {
  padding: 14px 24px;
  border: 1px solid var(--navy);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  gap: 12px;
  transition: all var(--transition);
}

.cert-badge:hover {
  background: var(--navy);
  color: var(--white);
}

.cert-icon { font-size: 1.2rem; }
.cert-name {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--navy);
  transition: color var(--transition);
}
.cert-badge:hover .cert-name { color: var(--white); }

/* ---- Involvement / Services Page ---- */
.involve-hero-bg {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-mid) 100%);
}

.involve-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.involve-card {
  background: var(--white);
  border: 1px solid var(--gray-light);
  padding: 36px;
  border-radius: var(--radius);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.involve-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 3px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

.involve-card:hover { box-shadow: 0 12px 40px rgba(11,37,69,0.1); transform: translateY(-2px); }
.involve-card:hover::after { transform: scaleX(1); }

.involve-org {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 8px;
}

.involve-title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 4px;
}

.involve-dates {
  font-size: 0.8rem;
  color: var(--gray);
  margin-bottom: 16px;
}

.involve-body {
  font-size: 0.88rem;
  color: var(--text-light);
  line-height: 1.75;
}

.impact-number {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--navy);
  line-height: 1;
  margin-top: 16px;
}

.impact-label {
  font-size: 0.78rem;
  color: var(--gray);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-top: 4px;
}

/* ---- Contact Page ---- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.contact-intro {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 400;
  color: var(--navy);
  line-height: 1.4;
  margin-bottom: 40px;
}

.contact-item {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  padding: 24px 0;
  border-bottom: 1px solid var(--gray-light);
}

.contact-item:first-of-type { border-top: 1px solid var(--gray-light); }

.contact-icon {
  width: 40px;
  height: 40px;
  background: var(--navy);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.contact-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 4px;
}

.contact-value {
  font-size: 0.95rem;
  color: var(--text);
  font-weight: 400;
}

.contact-value a {
  color: var(--navy-mid);
  transition: color var(--transition);
}

.contact-value a:hover { color: var(--gold); }

.contact-right {
  background: var(--navy);
  padding: 48px;
  border-radius: var(--radius);
  color: var(--white);
}

.contact-right-title {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 8px;
}

.contact-right-sub {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.6);
  margin-bottom: 32px;
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.contact-link-btn {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 20px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius);
  color: var(--white);
  font-size: 0.88rem;
  transition: all var(--transition);
}

.contact-link-btn:hover {
  background: rgba(201,168,76,0.15);
  border-color: rgba(201,168,76,0.4);
}

.contact-link-btn span { font-size: 1.1rem; }

/* ---- Footer ---- */
footer {
  background: var(--navy);
  padding: 40px 0;
  border-top: 1px solid rgba(201,168,76,0.2);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-logo {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--white);
}

.footer-logo span { color: var(--gold); }

.footer-copy {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.4);
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.5);
  letter-spacing: 0.08em;
  transition: color var(--transition);
}

.footer-links a:hover { color: var(--gold); }

/* ---- Fade-in Animation ---- */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-up:nth-child(1) { transition-delay: 0s; }
.fade-up:nth-child(2) { transition-delay: 0.1s; }
.fade-up:nth-child(3) { transition-delay: 0.2s; }
.fade-up:nth-child(4) { transition-delay: 0.3s; }

/* ---- Responsive ---- */
@media (max-width: 900px) {
  nav { padding: 0 24px; }
  .nav-links { display: none; }
  .hamburger { display: flex; }

  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 40px;
  }
  .hero-photo-wrap { order: -1; }
  .hero-photo-frame { width: 220px; height: 270px; margin: 0 auto; }
  .hero-desc { margin: 0 auto 32px; }
  .hero-actions { justify-content: center; }
  .hero-stats { justify-content: center; }

  .snapshot-grid { grid-template-columns: 1fr; gap: 2px; }
  .bio-grid { grid-template-columns: 1fr; gap: 40px; }
  .exp-item { grid-template-columns: 1fr; gap: 12px; }
  .edu-grid { grid-template-columns: 1fr; }
  .involve-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .footer-inner { flex-direction: column; gap: 16px; text-align: center; }
  .container { padding: 0 20px; }
  section { padding: 60px 0; }
}

/* Mobile nav open */
nav.open .nav-links {
  display: flex;
  flex-direction: column;
  position: absolute;
  top: var(--nav-height);
  left: 0; right: 0;
  background: var(--navy);
  padding: 24px;
  gap: 20px;
  border-top: 1px solid rgba(201,168,76,0.2);
}