/* =========================================================
   Theme variables — swap these to re-theme the whole site
   ========================================================= */
:root {
  --color-navy-950: #081522;
  --color-navy-900: #0A1F33;
  --color-navy-800: #0D2B45;
  --color-navy-700: #15385a;
  --color-gold-400: #D9BA7D;
  --color-gold-500: #C9A455;
  --color-gold-600: #af8a3c;
  --color-cream-100: #F5F1E8;
  --color-cream-200: #EDE7D8;
  --color-ink: #1B1E22;
  --color-ink-soft: #4A4E55;

  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --container-width: 1120px;
  --header-height: 76px;

  --shadow-soft: 0 10px 30px rgba(10, 31, 51, 0.12);
  --transition: 0.25s ease;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--color-ink);
  background: var(--color-cream-100);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

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

ul { list-style: none; }

h1, h2, h3 {
  font-family: var(--font-display);
  color: var(--color-navy-900);
  line-height: 1.15;
}

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

/* =========================================================
   Header / Nav
   ========================================================= */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-height);
  background: rgba(245, 241, 232, 0.92);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid rgba(10, 31, 51, 0.08);
  z-index: 1000;
}

.nav {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__brand {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.25rem;
  color: var(--color-navy-900);
  letter-spacing: 0.01em;
}

.nav__menu {
  display: flex;
  align-items: center;
  gap: 2.25rem;
}

.nav__link {
  position: relative;
  font-size: 0.92rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--color-ink-soft);
  padding: 6px 0;
  transition: color var(--transition);
}

.nav__link::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 0%;
  height: 2px;
  background: var(--color-gold-500);
  transition: width var(--transition);
}

.nav__link:hover,
.nav__link:focus-visible {
  color: var(--color-navy-900);
}

.nav__link:hover::after,
.nav__link:focus-visible::after {
  width: 100%;
}

.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: transparent;
  border: none;
  cursor: pointer;
  z-index: 1100;
}

.nav__toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-navy-900);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.nav__toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav__toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.nav__toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* =========================================================
   Buttons
   ========================================================= */
.btn {
  display: inline-block;
  padding: 0.85rem 1.75rem;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  border-radius: 2px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
}

.btn--primary {
  background: var(--color-navy-900);
  color: var(--color-cream-100);
  border-color: var(--color-navy-900);
}

.btn--primary:hover {
  background: var(--color-gold-500);
  border-color: var(--color-gold-500);
  color: var(--color-navy-950);
}

.btn--ghost {
  background: transparent;
  color: var(--color-navy-900);
  border-color: var(--color-navy-900);
}

.btn--ghost:hover {
  background: var(--color-navy-900);
  color: var(--color-cream-100);
}

/* =========================================================
   Sections — shared
   ========================================================= */
.section {
  padding: 6.5rem 0;
}

.section--alt {
  background: var(--color-cream-200);
}

.section__heading {
  display: flex;
  align-items: baseline;
  gap: 0.9rem;
  font-size: clamp(1.9rem, 3vw, 2.6rem);
  font-weight: 600;
  margin-bottom: 3rem;
}

.section__kicker {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-gold-600);
  letter-spacing: 0.08em;
}

/* =========================================================
   Hero / About
   ========================================================= */
.hero {
  padding-top: calc(var(--header-height) + 4.5rem);
}

.hero__intro {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1.75rem;
  max-width: 620px;
  margin: 0 auto;
  padding-bottom: 5rem;
}

@media (min-width: 768px) {
  .hero__intro {
    max-width: 820px;
    gap: 2.75rem;
    padding-bottom: 6rem;
  }

  .hero__meta {
    flex-direction: row;
    gap: 3rem;
  }

  .hero__meta p:last-child {
    border-left: 1px solid rgba(10, 31, 51, 0.15);
    padding-left: 3rem;
  }

  .hero__cta {
    gap: 1.5rem;
  }

  .hero__cta .btn {
    padding: 0.95rem 2.25rem;
  }

  .portrait-frame {
    width: 260px;
    height: 325px;
  }
}

.hero__name {
  font-size: clamp(2.6rem, 7vw, 4.2rem);
  font-weight: 700;
  min-height: 1.15em;
}

.hero__cursor {
  display: inline-block;
  width: 3px;
  height: 0.8em;
  margin-left: 5px;
  vertical-align: -0.05em;
  background: var(--color-gold-500);
  animation: cursorBlink 0.9s step-end infinite;
}

.hero__portrait {
  display: flex;
  justify-content: center;
}

.portrait-frame {
  width: 220px;
  height: 275px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}

.portrait-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.portrait-placeholder-label {
  color: var(--color-gold-400);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  text-align: center;
  padding: 0 1rem;
}

.hero__meta {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  color: var(--color-ink-soft);
  font-size: 1.05rem;
  line-height: 1.5;
}

.hero__meta p {
  margin: 0;
}

.hero__meta p:first-child {
  color: var(--color-navy-900);
  font-weight: 600;
}

.hero__cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
}

.fade-in {
  opacity: 0;
  transform: translateY(14px);
  animation: heroFadeIn 0.7s ease forwards;
  animation-delay: var(--fade-delay, 0s);
}

@keyframes heroFadeIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes cursorBlink {
  50% { opacity: 0; }
}

.about__body {
  border-top: 1px solid rgba(10, 31, 51, 0.1);
  padding-top: 4rem;
}

.about__content {
  display: grid;
  gap: 1.25rem;
  max-width: 68ch;
  color: var(--color-ink-soft);
  font-size: 1.05rem;
  margin-bottom: 3rem;
}

.about__stats {
  display: grid;
  grid-template-columns: repeat(3, auto);
  gap: 3rem;
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.stat__number {
  font-family: var(--font-display);
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--color-navy-900);
}

.stat__label {
  font-size: 0.85rem;
  color: var(--color-ink-soft);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* =========================================================
   Experience — timeline
   ========================================================= */
.timeline {
  position: relative;
  padding-left: 2rem;
  border-left: 2px solid rgba(201, 164, 85, 0.4);
  display: flex;
  flex-direction: column;
  gap: 3rem;
}

.timeline__item {
  position: relative;
}

.timeline__marker {
  position: absolute;
  left: -2.45rem;
  top: 0.35rem;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-cream-100);
  border: 3px solid var(--color-gold-500);
}

.timeline__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.25rem;
}

.timeline__head h3 {
  font-size: 1.25rem;
  font-weight: 600;
}

.timeline__date {
  font-size: 0.85rem;
  color: var(--color-ink-soft);
  font-weight: 500;
  white-space: nowrap;
}

.timeline__org {
  font-weight: 600;
  color: var(--color-gold-600);
  margin-bottom: 0.75rem;
}

.timeline__bullets {
  display: grid;
  gap: 0.45rem;
  color: var(--color-ink-soft);
  padding-left: 1.1rem;
}

.timeline__bullets li {
  position: relative;
}

.timeline__bullets li::before {
  content: "—";
  position: absolute;
  left: -1.1rem;
  color: var(--color-gold-500);
}

/* =========================================================
   Card grid — extracurriculars
   ========================================================= */
.card-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.75rem;
}

.card {
  background: var(--color-cream-100);
  border: 1px solid rgba(10, 31, 51, 0.08);
  border-radius: 4px;
  padding: 1.75rem;
  transition: transform var(--transition), box-shadow var(--transition);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-soft);
}

.card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.35rem;
}

.card__date {
  display: block;
  font-size: 0.8rem;
  color: var(--color-gold-600);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 0.85rem;
}

.card p {
  color: var(--color-ink-soft);
  font-size: 0.98rem;
}

/* =========================================================
   Project grid
   ========================================================= */
.project-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.project-card {
  background: var(--color-navy-900);
  color: var(--color-cream-100);
  border-radius: 4px;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transition: transform var(--transition), box-shadow var(--transition);
}

.project-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-soft);
}

.project-card__tag {
  align-self: flex-start;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-navy-950);
  background: var(--color-gold-500);
  padding: 0.3rem 0.7rem;
  border-radius: 2px;
}

.project-card h3 {
  color: var(--color-cream-100);
  font-size: 1.15rem;
}

.project-card p {
  color: rgba(245, 241, 232, 0.78);
  font-size: 0.95rem;
  flex-grow: 1;
}

.project-link {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-gold-400);
  transition: color var(--transition);
}

.project-link:hover {
  color: var(--color-gold-500);
}

/* =========================================================
   Resume
   ========================================================= */
.resume__grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 3rem;
}

.resume__intro p {
  color: var(--color-ink-soft);
  margin: 1.25rem 0 2rem;
  max-width: 42ch;
}

.resume__highlights {
  display: grid;
  gap: 1.75rem;
}

.resume__block h3 {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-gold-600);
  margin-bottom: 0.5rem;
}

.resume__block p {
  color: var(--color-ink-soft);
}

/* =========================================================
   Contact
   ========================================================= */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
}

.contact__intro p {
  color: var(--color-ink-soft);
  max-width: 42ch;
  margin: 1.25rem 0 2rem;
}

.contact__list {
  display: grid;
  gap: 1rem;
}

.contact__list li {
  display: flex;
  gap: 1rem;
  align-items: baseline;
  border-bottom: 1px solid rgba(10, 31, 51, 0.1);
  padding-bottom: 0.75rem;
}

.contact__list span {
  min-width: 90px;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-gold-600);
}

.contact__list a:hover {
  color: var(--color-navy-700);
  text-decoration: underline;
}

.contact__form {
  display: grid;
  gap: 1.25rem;
  align-content: start;
}

.form__row {
  display: grid;
  gap: 0.4rem;
}

.form__row label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-ink-soft);
}

.form__row input,
.form__row textarea {
  font-family: var(--font-body);
  font-size: 0.98rem;
  padding: 0.8rem 1rem;
  border: 1px solid rgba(10, 31, 51, 0.18);
  border-radius: 2px;
  background: var(--color-cream-100);
  color: var(--color-ink);
  resize: vertical;
}

.form__row input:focus,
.form__row textarea:focus {
  outline: none;
  border-color: var(--color-gold-500);
}

.contact__form .btn {
  justify-self: start;
}

.form__note {
  font-size: 0.8rem;
  color: var(--color-ink-soft);
  font-style: italic;
}

/* =========================================================
   Secret (scaffold only)
   ========================================================= */
.secret__body {
  min-height: 40vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.secret__body p {
  color: var(--color-ink-soft);
}

/* =========================================================
   Footer
   ========================================================= */
.site-footer {
  background: var(--color-navy-950);
  color: rgba(245, 241, 232, 0.6);
  padding: 2rem 0;
  text-align: center;
  font-size: 0.85rem;
}

/* =========================================================
   Scroll-margin so anchored sections clear the fixed header
   ========================================================= */
section[id] {
  scroll-margin-top: var(--header-height);
}

/* =========================================================
   Responsive — tablet
   ========================================================= */
@media (max-width: 900px) {
  .project-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .resume__grid,
  .contact__grid {
    grid-template-columns: 1fr;
  }
}

/* =========================================================
   Responsive — mobile (hamburger breakpoint)
   ========================================================= */
@media (max-width: 720px) {
  :root {
    --header-height: 64px;
  }

  .section {
    padding: 4rem 0;
  }

  .nav__toggle {
    display: flex;
  }

  .nav__menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    height: calc(100vh - var(--header-height));
    height: calc(100dvh - var(--header-height));
    background: var(--color-navy-900);
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    gap: 0;
    padding: 1.5rem 1.75rem;
    transform: translateX(100%);
    transition: transform var(--transition);
    overflow-y: auto;
  }

  .nav__menu.is-open {
    transform: translateX(0);
  }

  .nav__menu li {
    width: 100%;
    border-bottom: 1px solid rgba(245, 241, 232, 0.1);
  }

  .nav__link {
    display: block;
    padding: 1rem 0;
    color: var(--color-cream-100);
    font-size: 1rem;
  }

  .nav__link::after {
    display: none;
  }

  .nav__link:hover,
  .nav__link:focus-visible {
    color: var(--color-gold-400);
  }

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

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

  .about__stats {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
  }

  .hero__cta {
    flex-direction: column;
    align-items: stretch;
  }

  .hero__cta .btn {
    text-align: center;
  }

  .timeline {
    padding-left: 1.5rem;
  }

  .timeline__marker {
    left: -1.95rem;
  }
}

@media (max-width: 420px) {
  .about__stats {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }
}