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

/* STYLE 4 — FIELD TERMINAL
   A complete replacement for style3.css.
   Compatible with index.html and index_es.html, without HTML changes.
*/
:root {
  color-scheme: dark;
  --bg: #0c1414;
  --panel: #142120;
  --panel-2: #192928;
  --panel-3: #203331;
  --line: #35504a;
  --line-bright: #52766a;
  --ink: #e8f0e8;
  --muted: #acbeb4;
  --dim: #83a196;
  --signal: #a0e0aa;
  --signal-2: #65c6af;
  --amber: #ddbe83;
  --mono: 'IBM Plex Mono', Consolas, monospace;
  --sans: 'IBM Plex Sans', Arial, sans-serif;
  --sidebar-width: 232px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 24px; }
body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.65;
  overflow-x: hidden;
}
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    linear-gradient(rgba(105, 172, 144, .055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(105, 172, 144, .055) 1px, transparent 1px),
    radial-gradient(ellipse at 90% 10%, rgba(59, 139, 111, .13), transparent 48%);
  background-size: 46px 46px, 46px 46px, auto;
  pointer-events: none;
  z-index: -1;
}
a { color: var(--signal); }
a:hover { color: #d8ffdb; }
:focus-visible { outline: 2px solid var(--signal); outline-offset: 4px; }
img { max-width: 100%; }
h1,h2,h3 { line-height: 1.25; margin-top: 0; }
p { font-size: 1.06rem; line-height: 1.78; color: var(--muted); }
::selection { background: var(--signal); color: var(--bg); }

/* Side navigation */
.sidebar {
  width: var(--sidebar-width);
  position: fixed;
  inset: 0 auto 0 0;
  padding: 55px 18px 24px;
  z-index: 50;
  overflow-y: auto;
  background: linear-gradient(180deg, #142321, #0e1b19);
  border-right: 1px solid var(--line);
  box-shadow: 9px 0 40px rgba(0,0,0,.18);
}
.sidebar::before {
  display: block;
  padding: 0 10px 18px;
  margin-bottom: 25px;
  color: var(--signal-2);
  font: 600 .72rem var(--mono);
  letter-spacing: .16em;
  border-bottom: 1px solid var(--line);
}
.sidebar ul { list-style: none; padding: 0; margin: 0; }
.sidebar ul li { margin: 0 0 7px; }
.sidebar ul li a {
  display: block;
  padding: 11px 12px;
  border: 1px solid transparent;
  border-radius: 4px;
  color: var(--ink);
  font: 500 .94rem var(--sans);
  text-decoration: none;
  transition: background .2s, color .2s, border-color .2s;
}
.sidebar ul li a::before {
  content: '>';
  font: 600 .78rem var(--mono);
  margin-right: 11px;
  color: var(--signal-2);
}
.sidebar ul li a:hover,
.sidebar ul li a:focus-visible {
  background: rgba(160,224,170,.10);
  border-color: var(--line);
  color: var(--signal);
}
.sidebar .language-menu {
  margin-top: 26px;
  padding-top: 20px;
  border-top: 1px solid var(--line-bright);
}
.sidebar .language-menu a {
  font: 500 .82rem var(--mono);
  text-align: center;
  color: var(--signal);
  border: 1px solid var(--line);
  padding: 10px 6px;
  background: rgba(101,198,175,.05);
}
.sidebar .language-menu a::before { content: none; }
.sidebar .language-menu a:hover { background: rgba(160,224,170,.13); }
.sidebar.scrolled { border-right-color: var(--line-bright); }

#scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0;
  background: linear-gradient(90deg, var(--signal-2), var(--signal), var(--amber));
  z-index: 1000;
}

/* Layout & section frames */
.main-content {
  width: min(calc(100% - var(--sidebar-width)), 1460px);
  margin-left: var(--sidebar-width);
  padding: 36px clamp(18px, 4vw, 65px) 60px;
}
.section {
  position: relative;
  margin: 0 0 33px;
  padding: clamp(24px, 3.3vw, 45px);
  background: linear-gradient(145deg, rgba(24,40,38,.96), rgba(16,30,29,.98));
  border: 1px solid var(--line);
  border-radius: 7px;
  box-shadow: 0 10px 30px rgba(0,0,0,.15);
  overflow: visible;
  scroll-margin-top: 25px;
}
.section::before, .section::after {
  content: '';
  position: absolute;
  width: 15px;
  height: 15px;
  pointer-events: none;
}
.section::before { top: -1px; left: -1px; border-top: 2px solid var(--signal); border-left: 2px solid var(--signal); }
.section::after { bottom: -1px; right: -1px; border-bottom: 2px solid var(--signal-2); border-right: 2px solid var(--signal-2); }
.section h1:not(.static-title) {
  font-size: clamp(1.55rem, 2.5vw, 2.2rem);
  font-weight: 600;
  color: var(--ink);
  padding-bottom: 16px;
  margin-bottom: 23px;
  border-bottom: 1px solid var(--line);
}
.section h1:not(.static-title)::before {
  content: '01 / ';
  color: var(--signal-2);
  font: 500 .83rem var(--mono);
  letter-spacing: .02em;
  vertical-align: middle;
  margin-right: 12px;
}
#research h1::before { content: '02 / ' !important; }
#publications h1::before { content: '03 / ' !important; }
#data h1::before { content: '04 / ' !important; }
#funding h1::before { content: '05 / ' !important; }
#cv h1::before { content: '06 / ' !important; }
#contact h1::before { content: '07 / ' !important; }

/* About */
.content-wrapper { display: flex; gap: clamp(22px, 4vw, 52px); align-items: center; }
.image-content { position: relative; flex: 0 0 250px; }
.image-content::before {
  position: absolute;
  bottom: 14px;
  left: 10px;
  z-index: 2;
  background: rgba(12,20,20,.87);
  color: var(--signal);
  font: 500 .66rem var(--mono);
  letter-spacing: .04em;
  padding: 7px 9px;
  border: 1px solid var(--line-bright);
}
.image-content img {
  display: block;
  width: 250px;
  height: 340px;
  object-fit: cover;
  border: 1px solid var(--line-bright);
  border-radius: 3px;
  filter: saturate(.78) contrast(1.06);
}
.text-content { min-width: 0; flex: 1; }
.static-title {
  font: 600 clamp(2rem, 3.5vw, 3.5rem)/1.2 var(--sans);
  letter-spacing: -.04em;
  border-left: 3px solid var(--signal);
  padding-left: 18px;
  margin: 0 0 28px;
  color: #f5fff4;
  overflow-wrap: anywhere;
}
.text-content p { margin-bottom: 0; max-width: 78ch; }

/* Projects */
#research { display: flex; flex-direction: column; gap: 20px; }
.project-wrapper {
  display: flex;
  gap: 25px;
  align-items: center;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 20px;
  transition: border-color .25s, transform .25s;
}
.project-wrapper:hover { border-color: var(--signal-2); transform: translateY(-2px); }
.project-image, .project-image2 { flex: 0 0 210px; }
.project-image img, .project-image2 img, .project-photo img {
  display: block;
  width: 210px;
  height: 175px;
  object-fit: cover;
  border: 1px solid var(--line-bright);
  border-radius: 3px;
  filter: saturate(.80);
}
.project-text { min-width: 0; }
.project-text h2 { font-size: 1.4rem; color: #f1f9f2; margin-bottom: 8px; }
.project-text h2::before { content: '// '; color: var(--signal-2); font-family: var(--mono); }
.project-text p { margin: 0 0 15px; font-size: 1rem; }

/* Shared small links */
.project-text .data-link, .pub-card .data-link, .cv-link {
  display: inline-flex;
  align-items: center;
  padding: 9px 14px;
  border: 1px solid var(--line-bright);
  background: rgba(101,198,175,.07);
  color: var(--signal);
  border-radius: 3px;
  font: 600 .79rem var(--mono);
  text-decoration: none;
  transition: background .2s, color .2s, border-color .2s;
}
.project-text .data-link::after, .pub-card .data-link::after { content: ' ↗'; margin-left: 5px; }
.project-text .data-link:hover, .pub-card .data-link:hover, .cv-link:hover {
  background: var(--signal);
  border-color: var(--signal);
  color: #0b1b16;
}

/* Publications */
.pub-wrapper { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 14px; }
.pub-card {
  position: relative;
  padding: 24px 20px 19px;
  min-width: 0;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 4px;
  transition: border-color .2s, background .2s;
}
.pub-card:hover { border-color: var(--signal-2); background: var(--panel-3); }
.pub-card::before {
  content: 'PUBLICATION /';
  display: block;
  margin-bottom: 13px;
  color: var(--signal-2);
  font: 500 .67rem var(--mono);
  letter-spacing: .12em;
}
.pub-card h3 { font-size: 1.08rem; line-height: 1.5; font-weight: 600; margin-bottom: 12px; }
.pub-card p { margin: 0 0 16px; font: 400 .82rem/1.5 var(--mono); color: var(--dim); }

/* Code examples */
.data-wrapper { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 15px; }
#data .data-link {
  position: relative;
  min-width: 0;
  min-height: 95px;
  display: flex;
  align-items: center;
  padding: 19px 22px;
  background: #091713;
  border: 1px solid #39765c;
  border-radius: 4px;
  color: #b4f5c2;
  text-decoration: none;
  font: 500 .94rem var(--mono);
  overflow: visible;
  transition: background .2s, border-color .2s;
}
#data .data-link::before { content: '$ '; color: var(--signal-2); margin-right: 10px; }
#data .data-link::after { content: ' ↗'; color: var(--amber); margin-left: 8px; }
#data .data-link:hover { background: #143127; border-color: var(--signal); }
.tooltip {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  width: min(280px, calc(100vw - 45px));
  z-index: 100;
  opacity: 0;
  pointer-events: none;
  transform: translateY(5px);
  transition: opacity .2s, transform .2s;
  padding: 14px;
  background: #233630;
  border: 1px solid var(--line-bright);
  border-radius: 4px;
  box-shadow: 0 14px 24px #0008;
}
#data .data-link:hover .tooltip, #data .data-link:focus-visible .tooltip { opacity: 1; transform: translateY(0); }
.tooltip p { color: var(--ink); font: 400 .85rem/1.55 var(--sans); margin: 0; }
.tooltip img { display: block; max-width: 100%; max-height: 230px; object-fit: contain; }

/* Funding & CV */
.funding-logos { display: flex; flex-wrap: wrap; gap: 18px; justify-content: center; align-items: stretch; }
.funding-logos a {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 156px;
  min-height: 103px;
  padding: 17px;
  background: #f5f8f2;
  border: 1px solid #afc6b7;
  border-radius: 4px;
  transition: transform .2s, border-color .2s;
}
.funding-logos a:hover { transform: translateY(-3px); border-color: var(--signal); }
.funding-logos img { max-width: 100%; max-height: 76px; object-fit: contain; }
.cv-container { display: flex; flex-wrap: wrap; gap: 12px; }

/* Contact Formspree: keep existing form action/method */
#contact-form { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
#contact-form input, #contact-form textarea {
  display: block;
  width: 100%;
  min-width: 0;
  padding: 14px 16px;
  color: var(--ink);
  background: #0d1a18;
  border: 1px solid var(--line-bright);
  border-radius: 3px;
  font: 400 1rem var(--sans);
  box-shadow: none;
}
#contact-form input::placeholder, #contact-form textarea::placeholder { color: #a0b7aa; }
#contact-form textarea { grid-column: 1 / -1; height: 138px; resize: vertical; }
#contact-form input:focus, #contact-form textarea:focus { outline: 2px solid var(--signal-2); outline-offset: 1px; }
#contact-form button {
  grid-column: 1 / -1;
  justify-self: start;
  padding: 12px 26px;
  color: #10221a;
  background: var(--signal);
  border: 1px solid var(--signal);
  border-radius: 3px;
  font: 600 .85rem var(--mono);
  cursor: pointer;
  transition: background .2s;
}
#contact-form button::after { content: ' →'; }
#contact-form button:hover { background: #d6f5d7; }
#typewriter { font: 600 1.2rem var(--mono); color: var(--signal); }

/* Legacy language-switch fallback if one of the pages still uses it */
.language-switch { position: absolute; right: 24px; top: 10px; z-index: 70; }
.language-switch a { font: 500 .8rem var(--mono); color: var(--signal); }

/* Responsive */
@media (max-width: 1080px) {
  :root { --sidebar-width: 205px; }
  .image-content { flex-basis: 210px; }
  .image-content img { width: 210px; height: 300px; }
  .content-wrapper { gap: 25px; }
}
@media (max-width: 800px) {
  :root { --sidebar-width: 0px; }
  html { scroll-padding-top: 93px; }
  .sidebar {
    position: sticky;
    inset: 0 auto auto 0;
    width: 100%;
    height: auto;
    padding: 10px 12px;
    overflow-y: visible;
    border-right: none;
    border-bottom: 1px solid var(--line-bright);
  }
  .sidebar::before { display: none; }
  .sidebar ul { display: flex; align-items: center; gap: 5px; overflow-x: auto; scrollbar-width: thin; }
  .sidebar ul li { flex: 0 0 auto; margin: 0; }
  .sidebar ul li a { white-space: nowrap; font-size: .83rem; padding: 8px 10px; }
  .sidebar ul li a::before { margin-right: 5px; }
  .sidebar .language-menu { margin: 0 0 0 8px; padding: 0 0 0 12px; border-top: none; border-left: 1px solid var(--line-bright); }
  .sidebar .language-menu a { font-size: .75rem; }
  .main-content { width: 100%; margin-left: 0; padding: 22px 16px 48px; }
  .section { scroll-margin-top: 85px; }
  .content-wrapper { flex-direction: column; align-items: flex-start; }
  .image-content { flex-basis: auto; }
  .image-content img { width: min(100%, 310px); height: 310px; }
  .project-wrapper { align-items: flex-start; }
  .pub-wrapper { grid-template-columns: 1fr; }
}
@media (max-width: 570px) {
  .section { padding: 22px 17px; }
  .static-title { font-size: 2.1rem; }
  .project-wrapper { flex-direction: column; }
  .project-image, .project-image2 { flex: auto; width: 100%; }
  .project-image img, .project-image2 img, .project-photo img { width: 100%; height: 220px; }
  .data-wrapper { grid-template-columns: 1fr; }
  #contact-form { grid-template-columns: 1fr; }
  #contact-form textarea { grid-column: 1; }
  #contact-form button { grid-column: 1; }
  .funding-logos a { width: calc(50% - 9px); min-width: 118px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
}