/* ===== Base / Reset ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --navy: #0b1f33;
  --navy-deep: #081626;
  --accent: #1f6feb;
  --accent-soft: #e8f0fe;
  --text: #1a2433;
  --muted: #5b6776;
  --line: #e4e8ee;
  --bg: #ffffff;
  --bg-alt: #f7f9fc;
  --max: 920px;
}

/* ===== Dark theme ===== */
[data-theme="dark"] {
  --accent: #4d8cf0;
  --accent-soft: #16243d;
  --text: #e6ebf2;
  --muted: #9aa7b8;
  --line: #243447;
  --bg: #0d1117;
  --bg-alt: #131a24;
  /* --navy drives headings/logo/buttons — go light in dark mode */
  --navy: #f1f5fa;
  --navy-deep: #060c14;
}

html {
  scroll-behavior: smooth;
}

body {
  transition: background-color 0.3s ease, color 0.3s ease;
}

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--text);
  background-color: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a {
  text-decoration: none;
  color: inherit;
}

.muted {
  color: var(--muted);
  font-weight: 400;
}

/* ===== Navbar ===== */
.navbar {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem 2rem;
  background-color: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.nav-logo {
  font-family: "Fraunces", serif;
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--navy);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--muted);
  transition: color 0.2s ease;
}

.nav-links a:hover {
  color: var(--accent);
}

.nav-cta {
  padding: 0.5rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--navy) !important;
  transition: all 0.2s ease;
}

.nav-cta:hover {
  background-color: var(--navy);
  color: #fff !important;
  border-color: var(--navy);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--navy);
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

/* ===== Theme toggle ===== */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background-color: transparent;
  color: var(--navy);
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.theme-toggle:hover {
  background-color: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent);
}

.theme-toggle svg {
  width: 19px;
  height: 19px;
}

.theme-toggle .icon-sun {
  display: none;
}

[data-theme="dark"] .theme-toggle .icon-moon {
  display: none;
}

[data-theme="dark"] .theme-toggle .icon-sun {
  display: block;
}

/* Dark-mode overrides where --navy would otherwise be a light value */
[data-theme="dark"] .navbar {
  background-color: rgba(13, 17, 23, 0.85);
}

[data-theme="dark"] .btn {
  background-color: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

[data-theme="dark"] .btn:hover {
  background-color: #3a7ce0;
}

[data-theme="dark"] .btn-secondary {
  background-color: transparent;
  color: var(--text);
}

[data-theme="dark"] .btn-secondary:hover {
  background-color: var(--accent-soft);
}

[data-theme="dark"] .nav-cta {
  color: var(--text) !important;
}

[data-theme="dark"] .nav-cta:hover {
  background-color: var(--accent);
  border-color: var(--accent);
  color: #fff !important;
}

[data-theme="dark"] .hero {
  background: radial-gradient(1200px 600px at 70% -10%, #16243d 0%, var(--bg) 55%);
}

[data-theme="dark"] .skill-card {
  background-color: var(--bg-alt);
}

/* ===== Hero ===== */
.hero {
  display: flex;
  align-items: center;
  min-height: calc(100vh - 64px);
  padding: 4rem 2rem;
  background: radial-gradient(1200px 600px at 70% -10%, #eaf1ff 0%, var(--bg) 55%);
}

.hero-content {
  max-width: var(--max);
  margin: 0 auto;
  width: 100%;
}

.eyebrow {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}

.hero-content h1 {
  font-family: "Fraunces", serif;
  font-size: clamp(2.75rem, 7vw, 4.75rem);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--navy);
  margin-bottom: 1.5rem;
}

.hero-subtitle {
  font-size: clamp(1.1rem, 2.2vw, 1.4rem);
  color: var(--text);
  max-width: 720px;
  margin-bottom: 0.75rem;
}

.hero-tagline {
  font-size: 1.05rem;
  color: var(--muted);
  margin-bottom: 2.5rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

/* ===== Buttons ===== */
.btn {
  display: inline-block;
  padding: 0.85rem 1.9rem;
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  background-color: var(--navy);
  border: 1px solid var(--navy);
  border-radius: 8px;
  cursor: pointer;
  transition: transform 0.1s ease, background-color 0.2s ease;
}

.btn:hover {
  background-color: var(--navy-deep);
}

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

.btn-secondary {
  background-color: transparent;
  color: var(--navy);
}

.btn-secondary:hover {
  background-color: var(--accent-soft);
}

/* ===== Sections ===== */
.section {
  padding: 5.5rem 2rem;
}

.section-alt {
  background-color: var(--bg-alt);
}

.section-inner {
  max-width: var(--max);
  margin: 0 auto;
}

.section-title {
  font-family: "Fraunces", serif;
  font-size: 1.9rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 2.5rem;
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
}

.section-num {
  font-family: "Inter", sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--accent);
}

.about-grid {
  display: grid;
  gap: 1.5rem;
  font-size: 1.15rem;
  color: var(--text);
  max-width: 760px;
}

/* ===== Experience / Timeline ===== */
.timeline {
  display: grid;
  gap: 3rem;
}

.job {
  border-left: 2px solid var(--line);
  padding-left: 1.75rem;
  position: relative;
}

.job::before {
  content: "";
  position: absolute;
  left: -7px;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: var(--accent);
}

.job-head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.5rem 1.5rem;
  margin-bottom: 1rem;
}

.job-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--navy);
}

.job-title-prev {
  font-weight: 500;
  color: var(--muted);
  font-size: 1rem;
}

.job-company {
  font-size: 1rem;
  color: var(--accent);
  font-weight: 500;
}

.job-dates {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--muted);
  white-space: nowrap;
}

.job-summary {
  color: var(--text);
  margin-bottom: 1.25rem;
}

.deal-group-label {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 1.5rem 0 0.75rem;
}

.deals {
  list-style: none;
  display: grid;
  gap: 1rem;
}

.deals li {
  position: relative;
  padding-left: 1.25rem;
  color: var(--text);
  font-size: 0.98rem;
}

.deals li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7rem;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--accent);
}

.deals strong {
  color: var(--navy);
}

/* ===== Skills ===== */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}

.skill-card {
  background-color: var(--bg);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1.75rem;
}

.skill-card h3 {
  font-size: 1.05rem;
  color: var(--navy);
  margin-bottom: 1rem;
}

.skill-card ul {
  list-style: none;
  display: grid;
  gap: 0.5rem;
}

.skill-card li {
  color: var(--text);
  font-size: 0.98rem;
}

/* ===== Contact ===== */
.section-contact {
  background-color: var(--navy);
  color: #fff;
  text-align: center;
}

.section-contact .section-title {
  color: #fff;
  justify-content: center;
}

.contact-lead {
  font-size: 1.2rem;
  color: #c4d0de;
  max-width: 540px;
  margin: 0 auto 2.5rem;
}

.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2.5rem;
  justify-content: center;
}

.contact-link {
  font-size: 1.1rem;
  font-weight: 500;
  color: #fff;
  border-bottom: 1px solid rgba(255, 255, 255, 0.3);
  padding-bottom: 2px;
  transition: border-color 0.2s ease;
}

.contact-link:hover {
  border-color: #fff;
}

/* ===== Footer ===== */
.footer {
  text-align: center;
  padding: 2rem;
  background-color: var(--navy-deep);
  color: #8da0b4;
  font-size: 0.9rem;
}

/* ===== Responsive ===== */
@media (max-width: 720px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 1.25rem;
    padding: 1.5rem 2rem;
    background-color: #fff;
    border-bottom: 1px solid var(--line);
    transform: translateY(-150%);
    transition: transform 0.3s ease;
  }

  .nav-links.open {
    transform: translateY(0);
  }

  .section {
    padding: 4rem 1.5rem;
  }

  .hero {
    padding: 3rem 1.5rem;
  }

  .job-dates {
    white-space: normal;
  }
}