/* =========================================================
   Design tokens
   Ink (dark): #1B2A22   Paper (light): #EFE7D8
   Brass (accent): #A9762F   Teal (secondary): #3F6C5D
   ========================================================= */
:root{
  --ink: #1B2A22;
  --ink-soft: #24382D;
  --paper: #EFE7D8;
  --paper-soft: #E7DEC9;
  --brass: #A9762F;
  --brass-light: #C79A54;
  --teal: #3F6C5D;
  --cream-text: #F3EFE3;
  --line: rgba(27,42,34,0.16);
  --line-on-dark: rgba(243,239,227,0.18);
  --font-display: "Fraunces", serif;
  --font-body: "IBM Plex Sans", sans-serif;
  --font-mono: "IBM Plex Mono", monospace;
  --measure: 62ch;
  --gutter: clamp(1.25rem, 4vw, 3rem);
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *{ animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

body{
  margin:0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1,h2,h3{
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.15;
  margin: 0 0 0.5em;
}

p{ margin: 0 0 1em; max-width: var(--measure); }

a{ color: inherit; }

.wrap{
  max-width: 980px;
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* focus visibility */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible{
  outline: 2px solid var(--brass);
  outline-offset: 3px;
}

/* =========================================================
   Progress rail
   ========================================================= */
.progress-rail{
  position: fixed; top:0; left:0; right:0; height:3px; z-index: 60;
  background: transparent;
}
.progress-fill{
  height: 100%; width:0%;
  background: var(--brass);
  transition: width 80ms linear;
}

/* =========================================================
   Header
   ========================================================= */
.site-header{
  position: sticky; top:0; z-index: 50;
  background: rgba(239,231,216,0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}
.header-row{
  display:flex; align-items:center; justify-content:space-between;
  height: 64px;
}
.wordmark{
  font-family: var(--font-display);
  font-size: 1.15rem;
  text-decoration:none;
  font-weight: 600;
}
.site-nav{ display:flex; gap: 1.75rem; }
.nav-link{
  text-decoration:none;
  font-size: 0.92rem;
  color: var(--ink-soft);
  position: relative;
  padding: 4px 0;
}
.nav-link::after{
  content:"";
  position:absolute; left:0; bottom:0; height:1px; width:0;
  background: var(--brass);
  transition: width 200ms ease;
}
.nav-link:hover::after,
.nav-link.is-active::after{ width:100%; }
.nav-link.is-active{ color: var(--ink); font-weight: 500; }

.nav-toggle{
  display:none; flex-direction:column; gap:5px;
  background:none; border:none; cursor:pointer; padding: 8px;
}
.nav-toggle span{
  width: 22px; height: 2px; background: var(--ink); display:block;
  transition: transform 200ms ease, opacity 200ms ease;
}
.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); }

@media (max-width: 760px){
  .nav-toggle{ display:flex; }
  .site-nav{
    position:absolute; top:64px; left:0; right:0;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    flex-direction:column; gap:0;
    max-height:0; overflow:hidden;
    transition: max-height 260ms ease;
  }
  .site-nav.is-open{ max-height: 320px; }
  .nav-link{ padding: 14px var(--gutter); border-top: 1px solid var(--line); }
  .nav-link::after{ display:none; }
}

/* =========================================================
   Hero
   ========================================================= */
.hero{ padding: clamp(4rem, 10vw, 7rem) 0 clamp(3rem, 8vw, 5rem); }
.hero-inner{ opacity:0; transform: translateY(14px); animation: heroIn 700ms ease forwards 120ms; }
@keyframes heroIn{ to{ opacity:1; transform:none; } }

.hero-kicker{
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--teal);
  margin-bottom: 1.25rem;
}
.hero-line{
  font-size: clamp(1.9rem, 4.4vw, 3.1rem);
  max-width: 16ch;
}
.hero-name{ color: var(--brass); }
.hero-focus{ font-style: italic; }
.hero-sub{ color: var(--ink-soft); font-size: 1.05rem; }
.hero-actions{ display:flex; gap: 1rem; margin-top: 1.75rem; flex-wrap: wrap; }

.btn{
  display:inline-block;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 0.75em 1.5em;
  border-radius: 3px;
  text-decoration:none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 160ms ease, color 160ms ease, border-color 160ms ease;
}
.btn-primary{ background: var(--ink); color: var(--paper); }
.btn-primary:hover{ background: var(--brass); }
.section-dark .btn-primary{ background: var(--brass); color: var(--ink); }
.section-dark .btn-primary:hover{ background: var(--brass-light); }
.btn-ghost{ border-color: var(--ink); color: var(--ink); }
.btn-ghost:hover{ background: var(--ink); color: var(--paper); }
.section-dark .btn-ghost{ border-color: var(--line-on-dark); color: var(--cream-text); }
.section-dark .btn-ghost:hover{ background: var(--cream-text); color: var(--ink); }

/* =========================================================
   Section shells
   ========================================================= */
.section{ padding: clamp(3.5rem, 8vw, 6rem) 0; }
.section-dark{ background: var(--ink); color: var(--cream-text); }
.section-dark p{ color: rgba(243,239,227,0.82); }
.section-paper{ background: var(--paper); }
.section-head{ margin-bottom: clamp(2rem, 5vw, 3rem); }
.section-head h2{ font-size: clamp(1.6rem, 3vw, 2.1rem); }
.section-note{ color: var(--teal); font-family: var(--font-mono); font-size: 0.85rem; }
.section-dark .section-note{ color: var(--brass-light); }

/* =========================================================
   Timeline (Experience)
   ========================================================= */
.timeline{ list-style:none; margin:0; padding:0; border-left: 1px solid var(--line-on-dark); }
.timeline-item{
  position: relative; padding: 0 0 2.5rem 2rem;
  opacity: 0; transform: translateY(10px);
  transition: opacity 500ms ease, transform 500ms ease;
}
.timeline-item.is-visible{ opacity:1; transform:none; }
.timeline-item:last-child{ padding-bottom:0; }
.timeline-marker{
  position:absolute; left:-5px; top: 4px;
  width:9px; height:9px; border-radius:50%;
  background: var(--brass);
  box-shadow: 0 0 0 4px var(--ink);
}
.timeline-date{ font-family: var(--font-mono); font-size: 0.82rem; color: var(--brass-light); margin-bottom: 0.35em; }
.timeline-content h3{ font-size: 1.2rem; margin-bottom: 0.15em; color: var(--cream-text); }
.timeline-org{ font-style: italic; color: rgba(243,239,227,0.7); margin-bottom: 0.5em; }

/* =========================================================
   Degree list (Academics)
   ========================================================= */
.degree-list{ display:flex; flex-direction:column; }
.degree-row{
  display:grid; grid-template-columns: 160px 1fr;
  gap: 1.5rem; padding: 1.75rem 0;
  border-top: 1px solid var(--line);
}
.degree-row:last-child{ border-bottom: 1px solid var(--line); }
.degree-year{ font-family: var(--font-mono); font-size: 0.85rem; color: var(--teal); }
.degree-what h3{ font-size: 1.15rem; }
.degree-inst{ font-style: italic; color: var(--ink-soft); margin-bottom: 0.5em; }
@media (max-width: 620px){
  .degree-row{ grid-template-columns: 1fr; gap: 0.4rem; }
}

/* =========================================================
   Testimonials
   ========================================================= */
.quote-stage{
  display:flex; align-items:center; gap: 1.25rem;
  max-width: 720px; margin: 0 auto;
}
.quote-viewport{ position:relative; flex:1; min-height: 170px; }
.quote-slide{
  position:absolute; inset:0;
  margin:0; opacity:0; visibility:hidden;
  transition: opacity 400ms ease;
  border-left: 2px solid var(--brass);
  padding-left: 1.5rem;
}
.quote-slide.is-active{ opacity:1; visibility:visible; }
.quote-slide p{
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.25rem;
  color: var(--cream-text);
  max-width: 56ch;
}
.quote-slide footer{ font-family: var(--font-mono); font-size: 0.82rem; color: var(--brass-light); }
.quote-nav{
  background:none; border:1px solid var(--line-on-dark); color: var(--cream-text);
  width: 40px; height:40px; border-radius:50%; font-size:1.4rem; line-height:1;
  cursor:pointer; flex-shrink:0; transition: border-color 160ms ease, color 160ms ease;
}
.quote-nav:hover{ border-color: var(--brass); color: var(--brass-light); }
.quote-dots{ display:flex; justify-content:center; gap:0.5rem; margin-top: 1.75rem; }
.quote-dots button{
  width:7px; height:7px; border-radius:50%; border:none; padding:0;
  background: var(--line-on-dark); cursor:pointer;
}
.quote-dots button.is-active{ background: var(--brass); }

/* =========================================================
   Resources
   ========================================================= */
.filter-row{ display:flex; gap:0.6rem; flex-wrap:wrap; margin-bottom: 1.25rem; }
.filter-chip{
  font-family: var(--font-mono); font-size: 0.82rem;
  background: none; border: 1px solid var(--ink); color: var(--ink);
  padding: 0.4em 0.9em; border-radius: 3px; cursor: pointer;
  transition: background 160ms ease, color 160ms ease;
}
.filter-chip.is-active, .filter-chip:hover{ background: var(--ink); color: var(--paper); }
.resource-search{ margin-bottom: 2rem; }
#resourceSearch{
  width:100%; max-width: 420px;
  font-family: var(--font-body); font-size: 0.95rem;
  padding: 0.65em 0.9em; border: 1px solid var(--ink); border-radius: 3px;
  background: transparent; color: var(--ink);
}
.resource-index{ list-style:none; margin:0; padding:0; counter-reset: resource; }
.resource-item{
  counter-increment: resource;
  display:grid; grid-template-columns: 2.5rem 1fr auto;
  gap: 1rem; align-items:start;
  padding: 1.25rem 0; border-top: 1px solid var(--line);
}
.resource-index li:last-child{ border-bottom: 1px solid var(--line); }
.resource-item::before{
  content: counter(resource, decimal-leading-zero);
  font-family: var(--font-mono); font-size: 0.85rem; color: var(--teal);
  padding-top: 0.2em;
}
.resource-item h3{ font-size: 1.05rem; margin-bottom: 0.2em; }
.resource-item a{ text-decoration: underline; text-decoration-color: var(--brass); text-underline-offset: 3px; }
.resource-tag{
  font-family: var(--font-mono); font-size: 0.72rem; text-transform: lowercase;
  color: var(--teal); border: 1px solid var(--teal); border-radius: 3px;
  padding: 0.2em 0.6em; height: fit-content; white-space: nowrap;
}
.resource-empty{ color: var(--ink-soft); font-style: italic; }
@media (max-width: 600px){
  .resource-item{ grid-template-columns: 2rem 1fr; }
  .resource-tag{ grid-column: 2; }
}

/* =========================================================
   Contact
   ========================================================= */
.contact-grid{ display:grid; grid-template-columns: 1fr 1fr; gap: 3rem; }
@media (max-width: 760px){ .contact-grid{ grid-template-columns: 1fr; } }
.contact-list{ list-style:none; margin: 1.5rem 0 0; padding:0; }
.contact-list li{
  display:flex; gap: 1rem; padding: 0.75rem 0;
  border-top: 1px solid var(--line-on-dark);
}
.contact-list li a{ text-decoration: underline; text-decoration-color: var(--brass); }
.contact-label{
  font-family: var(--font-mono); font-size: 0.8rem; color: var(--brass-light);
  width: 90px; flex-shrink:0;
}

.contact-form{ display:flex; flex-direction:column; gap: 1.1rem; }
.form-row{ display:flex; flex-direction:column; gap: 0.4rem; }
.form-row label{ font-family: var(--font-mono); font-size: 0.8rem; color: var(--brass-light); }
.form-row input, .form-row textarea{
  font-family: var(--font-body); font-size: 0.95rem;
  background: var(--ink-soft); border: 1px solid var(--line-on-dark);
  color: var(--cream-text); border-radius: 3px; padding: 0.65em 0.8em;
  resize: vertical;
}
.form-row input:invalid[data-touched="true"], .form-row textarea:invalid[data-touched="true"]{
  border-color: #B5533E;
}
.form-error{ font-size: 0.8rem; color: #D98060; min-height: 1em; }
.form-status{ font-size: 0.88rem; color: var(--brass-light); min-height: 1.2em; }

/* =========================================================
   Footer
   ========================================================= */
.site-footer{ background: var(--ink); color: rgba(243,239,227,0.65); border-top: 1px solid var(--line-on-dark); }
.footer-row{
  display:flex; justify-content:space-between; align-items:center;
  padding: 1.5rem 0; font-size: 0.85rem;
}
.back-top{ text-decoration: underline; text-decoration-color: var(--brass); color: rgba(243,239,227,0.65); }