/* ══ VARIABLES & RESET ═══════════════════════════════════════════ */
:root {
  --uclm:          #B30033;
  --uclm-dark:     #8a0022;
  --uclm-light:    #d4003f;
  --teal:          #2a6496;
  --green:         #2e7d32;
  --bg:            #ffffff;
  --bg-alt:        #f7f7f7;
  --white:         #ffffff;
  --text:          #333333;
  --text-mid:      #555555;
  --text-light:    #888888;
  --border:        #ddd;
  --transition:    0.2s ease;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: 'Open Sans', Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

.container { max-width: 1080px; margin: 0 auto; padding: 0 24px; }
.section { padding: 64px 0; }
.section-alt { background: var(--bg-alt); }

/* ══ FADE IN ═════════════════════════════════════════════════════ */
.fade-in { opacity: 0; transform: translateY(14px); transition: opacity 0.4s ease, transform 0.4s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ══ SECTION HEADER ══════════════════════════════════════════════ */
.section-header { margin-bottom: 40px; }
.section-header h2 {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
  margin-bottom: 10px;
  border-left: 4px solid var(--uclm);
  padding-left: 14px;
}
.section-lead {
  max-width: 720px;
  color: var(--text-mid);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ══ NAVBAR ══════════════════════════════════════════════════════ */
#navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 0 24px;
  background: var(--uclm);
}
#navbar.scrolled { box-shadow: 0 2px 6px rgba(0,0,0,0.15); }
.nav-inner {
  max-width: 1080px;
  margin: 0 auto;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-title {
  color: #fff;
  font-size: 1.05rem;
  font-weight: 700;
}
.nav-title-tea { color: rgba(255,255,255,0.7); font-weight: 400; }
.nav-links { display: flex; gap: 2px; align-items: center; }
.nav-links a {
  padding: 6px 12px;
  font-size: 0.82rem;
  font-weight: 600;
  color: rgba(255,255,255,0.85);
  transition: color var(--transition);
}
.nav-links a:hover { color: #fff; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: white; border-radius: 1px; }

/* ══ HERO ════════════════════════════════════════════════════════ */
#hero {
  min-height: 70vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  overflow: hidden;
  background: #333;
  padding: 80px 24px 64px;
}
.hero-bg {
  position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(160deg, #2d2d2d 0%, #404040 100%);
}
.hero-content { position: relative; z-index: 2; max-width: 700px; margin: 0 auto; }
.hero-ref {
  font-size: 0.72rem;
  color: rgba(255,255,255,0.45);
  letter-spacing: 0.03em;
  margin-bottom: 20px;
}
.hero-title {
  font-size: clamp(1.7rem, 4vw, 2.6rem);
  font-weight: 700;
  color: #fff;
  line-height: 1.25;
  margin-bottom: 18px;
}
.hero-subtitle {
  font-size: 0.98rem;
  color: rgba(255,255,255,0.65);
  max-width: 580px;
  line-height: 1.75;
  margin-bottom: 28px;
}
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.btn-primary {
  padding: 11px 24px;
  background: var(--uclm);
  color: white;
  font-weight: 700;
  font-size: 0.88rem;
  transition: background var(--transition);
}
.btn-primary:hover { background: var(--uclm-dark); }
.btn-outline {
  padding: 11px 24px;
  border: 1px solid rgba(255,255,255,0.3);
  color: rgba(255,255,255,0.8);
  font-weight: 600;
  font-size: 0.88rem;
  transition: border-color var(--transition);
}
.btn-outline:hover { border-color: rgba(255,255,255,0.6); }


/* ══ ABOUT (Proyecto) ════════════════════════════════════════════ */
.about-grid { display: grid; grid-template-columns: 1fr 320px; gap: 48px; align-items: start; }
.about-text { display: flex; flex-direction: column; gap: 20px; }
.about-block { display: flex; gap: 14px; align-items: flex-start; }
.about-marker {
  width: 3px; min-height: 100%; background: var(--uclm); border-radius: 2px;
  flex-shrink: 0; margin-top: 4px;
}
.about-block h3 { font-size: 0.93rem; font-weight: 700; color: var(--text); margin-bottom: 5px; }
.about-block p { color: var(--text-mid); font-size: 0.88rem; line-height: 1.7; }
.about-block strong { color: var(--uclm); }

/* Sidebar (replaces visual card) */
.about-sidebar { position: sticky; top: 60px; }
.sidebar-card {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  padding: 20px;
  margin-bottom: 16px;
}
.sidebar-card h4 {
  font-size: 0.78rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.04em; color: var(--uclm); margin-bottom: 12px;
}
.project-table { width: 100%; border-collapse: collapse; }
.project-table tr { border-bottom: 1px solid var(--border); }
.project-table tr:last-child { border-bottom: none; }
.project-table td { padding: 6px 0; font-size: 0.82rem; }
.project-table td:first-child { color: var(--text-light); }
.project-table td:last-child { font-weight: 600; color: var(--text); text-align: right; }
.sidebar-group { font-size: 0.88rem; color: var(--text-mid); line-height: 1.6; }
.sidebar-group strong { color: var(--text); }
.sidebar-sub { font-size: 0.78rem; color: var(--text-light); margin-top: 4px; }

/* Logos */
.logos-card { border: none; background: transparent; padding: 16px 0 0; }
.logos-grid { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; }
.logos-grid img { height: 48px; width: auto; }

/* ══ OBJECTIVES ═════════════════════════════════════════════════ */
.objectives-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; }
.obj-card {
  background: var(--white);
  padding: 24px;
  border: 1px solid var(--border);
  position: relative;
}
.obj-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 3px;
}
.obj-card.blue::before { background: var(--uclm); }
.obj-card.teal::before { background: var(--teal); }
.obj-card.orange::before { background: #c8860a; }
.obj-id {
  width: 30px; height: 30px; border-radius: 50%;
  font-weight: 700; font-size: 0.82rem;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 12px;
}
.obj-card.blue .obj-id { background: var(--uclm); color: #fff; }
.obj-card.teal .obj-id { background: var(--teal); color: #fff; }
.obj-card.orange .obj-id { background: #c8860a; color: #fff; }
.obj-card h3 { font-size: 0.98rem; font-weight: 700; color: var(--text); margin-bottom: 8px; }
.obj-card p { color: var(--text-mid); font-size: 0.86rem; margin-bottom: 14px; line-height: 1.7; }
.obj-subitems { display: flex; flex-direction: column; gap: 5px; }
.obj-sub {
  display: flex; align-items: flex-start; gap: 8px;
  font-size: 0.8rem; color: var(--text-mid);
}
.obj-sub::before { content: '—'; color: var(--uclm); font-weight: 700; flex-shrink: 0; }

/* ══ TEAtreves ═══════════════════════════════════════════════════ */
.teatreves-section { background: #333; color: white; }
.teatreves-content { max-width: 680px; }
.section-header--light h2 {
  color: #fff;
  border-left-color: rgba(255,255,255,0.4);
  font-size: 1.5rem;
  margin-bottom: 20px;
}
.teatreves-body p {
  color: rgba(255,255,255,0.72);
  font-size: 0.92rem;
  line-height: 1.8;
  margin-bottom: 16px;
}
.teatreves-body p strong { color: #fff; }
.teatreves-availability {
  font-size: 0.78rem; color: rgba(255,255,255,0.4);
  margin-top: 8px;
}

/* ══ EQUIPO ══════════════════════════════════════════════════════ */
.pi-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 32px; }
.pi-card {
  background: var(--uclm);
  padding: 22px;
  display: flex; gap: 14px; align-items: center;
}
.pi-avatar {
  width: 48px; height: 48px; border-radius: 50%;
  background: rgba(255,255,255,0.2);
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem; font-weight: 700; color: white;
  flex-shrink: 0;
}
.pi-info { flex: 1; }
.pi-role { font-size: 0.65rem; font-weight: 700; color: rgba(255,255,255,0.7); text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 2px; }
.pi-name { font-size: 0.95rem; font-weight: 700; color: white; margin-bottom: 2px; line-height: 1.3; }
.pi-spec { font-size: 0.75rem; color: rgba(255,255,255,0.55); }
.pi-badge { background: rgba(255,255,255,0.15); color: rgba(255,255,255,0.75); font-size: 0.65rem; padding: 2px 8px; display: inline-block; margin-top: 4px; }

.team-subtitle { font-size: 0.88rem; font-weight: 700; color: var(--text-mid); margin-bottom: 20px; text-transform: uppercase; letter-spacing: 0.04em; }
.team-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 12px; }
.team-card {
  background: var(--white);
  padding: 16px 18px;
  border: 1px solid var(--border);
  display: flex; gap: 12px; align-items: center;
}
.team-avatar {
  width: 38px; height: 38px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.78rem; font-weight: 700; color: white;
  flex-shrink: 0;
  background: var(--uclm);
}
.team-info { flex: 1; min-width: 0; }
.team-name { font-size: 0.88rem; font-weight: 700; color: var(--text); margin-bottom: 2px; line-height: 1.3; }
.team-titulacion { font-size: 0.72rem; color: var(--text-light); line-height: 1.4; }
.team-tags { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 4px; }
.team-tag { font-size: 0.62rem; font-weight: 600; padding: 1px 6px; }
.tag-contract { background: #fce4ec; color: var(--uclm); }
.tag-area { background: #e3f0fa; color: var(--teal); }
.tag-indef { background: #e8f5e9; color: var(--green); }
.tag-temp { background: #fff3e0; color: #bf360c; }

/* ══ TIMELINE ════════════════════════════════════════════════════ */
.timeline { position: relative; padding-left: 36px; margin-bottom: 40px; }
.timeline::before {
  content: '';
  position: absolute; left: 14px; top: 0; bottom: 0; width: 2px;
  background: var(--border);
}
.timeline-item {
  position: relative; margin-bottom: 32px;
  opacity: 0; transform: translateX(-14px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}
.timeline-item.visible { opacity: 1; transform: translateX(0); }
.timeline-dot {
  position: absolute; left: -28px; top: 14px;
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--uclm);
  border: 2px solid var(--bg);
  box-shadow: 0 0 0 2px var(--uclm);
}
.timeline-card {
  background: var(--white);
  padding: 20px;
  border: 1px solid var(--border);
}
.tl-header { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.tl-num {
  width: 26px; height: 26px; border-radius: 50%;
  background: var(--uclm); color: white;
  font-size: 0.75rem; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.tl-title { font-size: 0.95rem; font-weight: 700; color: var(--text); }
.tl-desc { color: var(--text-mid); font-size: 0.86rem; margin-bottom: 12px; line-height: 1.6; }
.tl-tasks { display: flex; flex-wrap: wrap; gap: 6px; }
.tl-task {
  background: var(--bg-alt); color: var(--text-mid);
  font-size: 0.72rem; padding: 3px 8px;
  border: 1px solid var(--border);
}

/* ══ IMPACT ══════════════════════════════════════════════════════ */
.impact-columns { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; margin-bottom: 40px; }
.impact-col h3 {
  font-size: 0.95rem; font-weight: 700; color: var(--uclm);
  margin-bottom: 12px; padding-bottom: 8px;
  border-bottom: 2px solid var(--uclm);
}
.impact-col ul { display: flex; flex-direction: column; gap: 6px; }
.impact-col li { font-size: 0.86rem; color: var(--text-mid); line-height: 1.6; padding-left: 14px; position: relative; }
.impact-col li::before { content: '–'; position: absolute; left: 0; color: var(--uclm); font-weight: 700; }

/* Tesis */
.tesis-section { margin-top: 8px; }
.tesis-title { font-size: 1.05rem; font-weight: 700; color: var(--text); margin-bottom: 16px; }
.tesis-list { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.tesis-item {
  border: 1px solid var(--border);
  padding: 16px;
  background: var(--white);
}
.tesis-year {
  display: inline-block;
  background: var(--uclm); color: white;
  font-size: 0.68rem; font-weight: 700;
  padding: 1px 7px; margin-bottom: 8px;
}
.tesis-item p { font-size: 0.82rem; color: var(--text); line-height: 1.5; margin-bottom: 6px; }
.tesis-dir { font-size: 0.72rem; color: var(--uclm); font-weight: 600; }

/* ══ FOOTER ══════════════════════════════════════════════════════ */
#footer { background: #2b2b2b; color: rgba(255,255,255,0.65); padding: 48px 0 0; }

.footer-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr) auto;
  gap: 32px;
  align-items: start;
  margin-bottom: 32px;
}
.footer-col h4 {
  color: rgba(255,255,255,0.85); font-size: 0.72rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 10px;
}
.footer-list { display: flex; flex-direction: column; gap: 5px; }
.footer-list li { font-size: 0.82rem; }
.footer-group { font-size: 0.82rem; line-height: 1.6; margin-bottom: 4px; }
.footer-group strong { color: #fff; }

.footer-col--logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.footer-uclm-logo { height: 80px; width: auto; }
.footer-logo { font-size: 1.1rem; font-weight: 700; color: #fff; text-align: center; }
.footer-logo span { color: rgba(255,255,255,0.5); font-weight: 400; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 16px 0;
  text-align: center;
  font-size: 0.7rem; color: rgba(255,255,255,0.25);
}

/* ══ RESPONSIVE ══════════════════════════════════════════════════ */
@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; }
  .about-sidebar { position: static; }
  .pi-cards { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .impact-columns { grid-template-columns: 1fr; gap: 24px; }
  .tesis-list { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .nav-links { display: none; flex-direction: column; gap: 2px; position: fixed; top: 46px; left: 0; right: 0; background: var(--uclm-dark); padding: 12px; }
  .nav-links.open { display: flex; }
  .nav-toggle { display: flex; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-col--logo { flex-direction: row; justify-content: center; }
  .section { padding: 48px 0; }
}