*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0a0c10;
  --bg2: #111318;
  --bg3: #1a1d24;
  --border: rgba(255,255,255,0.08);
  --border2: rgba(255,255,255,0.14);
  --text: #e8eaf0;
  --text2: #8b8fa8;
  --text3: #565a72;
  --accent: #00c9a7;
  --accent2: #0098ff;
  --accent3: #ff6b35;
  --accent-dim: rgba(0,201,167,0.08);
  --accent2-dim: rgba(0,152,255,0.08);
  --mono: 'IBM Plex Mono', monospace;
  --sans: 'Inter', system-ui, sans-serif;
  --radius: 12px;
  --radius-sm: 6px;
  --header-bg: rgba(10,12,16,0.92);
  --duoc-blue: #003a70;
}

:root.light {
  --bg: #f2f4f8;
  --bg2: #ffffff;
  --bg3: #e8eaf0;
  --border: rgba(0,0,0,0.09);
  --border2: rgba(0,0,0,0.16);
  --text: #0f1117;
  --text2: #4a5068;
  --text3: #9298b0;
  --accent: #00896f;
  --accent2: #0062c8;
  --accent3: #c94a18;
  --accent-dim: rgba(0,137,111,0.08);
  --accent2-dim: rgba(0,98,200,0.08);
  --header-bg: rgba(242,244,248,0.93);
}

html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.6;
  transition: background 0.25s, color 0.25s;
}

/* HEADER */
.site-header {
  border-bottom: 1px solid var(--border);
  background: var(--header-bg);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-inner {
  max-width: 1600px;
  margin: 0 auto;
  padding: 14px 2.5rem;
  display: flex;
  align-items: center;
  gap: 2.5rem;
  flex-wrap: wrap;
}
.brand-group { display: flex; align-items: center; gap: 18px; margin-right: auto; }
.brand-logo, .brand-mark { display: flex; align-items: center; text-decoration: none; }
.brand-logo img, .brand-mark img { display: block; }
.brand-mark { color: var(--text); }

/* Logo swap by theme (Duoc + Rutencio both use light/dark variants) */
.brand-logo img.logo-light,
.brand-mark img.logo-light { display: none; }
.brand-logo img.logo-dark,
.brand-mark img.logo-dark  { display: block; }
:root.light .brand-logo img.logo-light,
:root.light .brand-mark img.logo-light { display: block; }
:root.light .brand-logo img.logo-dark,
:root.light .brand-mark img.logo-dark  { display: none; }
.divider {
  width: 1px;
  height: 30px;
  background: var(--border2);
}
.nav-links {
  display: flex;
  gap: 4px;
}
.nav-links a {
  font-size: 13px;
  font-family: var(--mono);
  color: var(--text2);
  text-decoration: none;
  padding: 7px 14px;
  border-radius: 20px;
  border: 1px solid transparent;
  transition: all 0.15s;
}
.nav-links a:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-dim);
}
.nav-links a[aria-disabled="true"] {
  opacity: 0.45;
  cursor: not-allowed;
}
.nav-links a[aria-disabled="true"]:hover {
  color: var(--text2);
  border-color: transparent;
  background: transparent;
}
.nav-links a.active {
  color: var(--accent);
  background: var(--accent-dim);
  border-color: rgba(0,201,167,0.25);
}
.theme-btn {
  background: var(--bg3);
  border: 1px solid var(--border2);
  color: var(--text2);
  border-radius: 20px;
  padding: 6px 14px;
  cursor: pointer;
  font-family: var(--mono);
  font-size: 12px;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: background 0.2s, color 0.2s;
}
.theme-btn:hover { color: var(--text); }

/* MAIN */
.portal-main {
  max-width: 1600px;
  margin: 0 auto;
  padding: 3rem 2.5rem 4rem;
  display: flex;
  flex-direction: column;
  gap: 3.5rem;
}

/* HERO */
.hero {
  padding: 1rem 0 0;
}
.hero-tag {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}
.badge-pty {
  background: var(--accent);
  color: #00231b;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 4px;
  letter-spacing: 0.05em;
}
.hero-subtag {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text2);
}
.hero-title {
  font-size: clamp(2.4rem, 5.5vw, 3.6rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: 0.4rem;
  color: var(--text);
}
.hero-subtitle {
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  color: var(--accent);
  font-weight: 500;
  margin-bottom: 1.2rem;
}
.hero-description {
  max-width: 750px;
  font-size: 15px;
  color: var(--text2);
  line-height: 1.7;
}
.hero-description strong {
  color: var(--text);
  font-weight: 600;
}

/* TEAM SECTION */
.team-section {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
.team-header { margin-bottom: 0.25rem; }
.kicker {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--text3);
  letter-spacing: 0.15em;
}
.team-header h2 {
  font-size: clamp(1.5rem, 3vw, 1.85rem);
  font-weight: 700;
  margin-top: 4px;
  letter-spacing: -0.02em;
  color: var(--text);
}
.team-subtitle {
  font-size: 14px;
  color: var(--text2);
  line-height: 1.7;
  max-width: 760px;
  margin-top: 10px;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}
@media (max-width: 1100px) {
  .team-grid { grid-template-columns: repeat(2, 1fr); }
}

.member-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 12px;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
  text-decoration: none;
  color: inherit;
  position: relative;
}
.member-card:hover {
  border-color: #0a66c2;
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(10,102,194,0.15);
}
.member-card.no-link { cursor: default; }
.member-card.no-link:hover {
  border-color: var(--border2);
  transform: translateY(-2px);
  box-shadow: none;
}

/* LinkedIn icon overlay - top right of card */
.member-linkedin {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 22px;
  height: 22px;
  color: var(--text3);
  opacity: 0.5;
  transition: opacity 0.2s, color 0.2s, transform 0.2s;
  pointer-events: none;
}
.member-linkedin svg { width: 100%; height: 100%; display: block; }
.member-card:hover .member-linkedin {
  opacity: 1;
  color: #0a66c2;
  transform: scale(1.15);
}

.member-photo {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  flex-shrink: 0;
  overflow: hidden;
  background: var(--bg3);
  border: 2px solid var(--border2);
  position: relative;
}
.member-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.member-photo-fallback {
  position: absolute;
  inset: 0;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-weight: 600;
  font-size: 28px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #001a14;
  letter-spacing: -0.02em;
}

.member-info {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 4px;
  align-items: center;
}
.member-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.01em;
  line-height: 1.25;
}
.member-role {
  font-size: 11px;
  font-family: var(--mono);
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 500;
}
.member-desc {
  font-size: 12px;
  color: var(--text2);
  line-height: 1.55;
  margin-top: 8px;
  text-align: left;
}
.member-desc strong { color: var(--text); font-weight: 600; }
.member-desc code {
  font-family: var(--mono);
  font-size: 0.86em;
  background: var(--bg3);
  color: var(--accent2);
  padding: 1px 5px;
  border-radius: 4px;
  border: 1px solid var(--border);
}

/* PROFESSOR CARD - extended/horizontal */
.professor-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem 2rem;
  display: flex;
  gap: 2rem;
  align-items: flex-start;
  text-decoration: none;
  color: inherit;
  position: relative;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
  overflow: hidden;
}
.professor-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--accent), var(--accent2));
}
.professor-card:hover {
  border-color: #0a66c2;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(10,102,194,0.12);
}

.professor-photo {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  flex-shrink: 0;
  overflow: hidden;
  background: var(--bg3);
  border: 2px solid var(--border2);
  position: relative;
}
.professor-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.professor-photo-fallback {
  position: absolute;
  inset: 0;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-weight: 600;
  font-size: 40px;
  background: linear-gradient(135deg, var(--accent2), var(--accent));
  color: #001a14;
  letter-spacing: -0.02em;
}

.professor-content {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.professor-head { display: flex; flex-direction: column; gap: 4px; }
.professor-name {
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.02em;
  margin: 2px 0;
  line-height: 1.2;
}
.professor-role {
  font-size: 12px;
  font-family: var(--mono);
  color: var(--accent);
  letter-spacing: 0.05em;
}
.professor-desc {
  font-size: 13.5px;
  color: var(--text2);
  line-height: 1.7;
  margin: 0;
  max-width: 920px;
}
.professor-desc strong { color: var(--text); font-weight: 600; }

.professor-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px 24px;
  padding-top: 14px;
  margin-top: 6px;
  border-top: 1px solid var(--border);
}
.prof-meta-item { display: flex; flex-direction: column; gap: 2px; }
.prof-meta-item .meta-label {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--text3);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.prof-meta-item .meta-value {
  font-size: 13px;
  color: var(--text);
  font-weight: 500;
}

.professor-card .member-linkedin {
  top: 16px;
  right: 16px;
  width: 24px;
  height: 24px;
}
.professor-card:hover .member-linkedin {
  opacity: 1;
  color: #0a66c2;
  transform: scale(1.15);
}

@media (max-width: 700px) {
  .professor-card { flex-direction: column; align-items: center; text-align: center; padding: 1.5rem; }
  .professor-photo { width: 100px; height: 100px; }
  .professor-head { align-items: center; }
}
.team-meta { display: flex; flex-direction: column; gap: 2px; }
.meta-label {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--text3);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.meta-value {
  font-size: 13px;
  color: var(--text);
  font-weight: 500;
}

/* ACCESS GRID */
.access-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 1.25rem;
}
.access-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  text-decoration: none;
  color: var(--text);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
  position: relative;
  overflow: hidden;
}
.access-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 3px;
  background: var(--accent);
  opacity: 0;
  transition: opacity 0.2s;
}
.access-card--docs::before { background: var(--accent2); }
.access-card--winserver::before { background: #6f4ad6; }
.access-card--gantt::before { background: var(--accent3); }
.access-card:hover:not([aria-disabled="true"]) {
  transform: translateY(-3px);
  border-color: var(--border2);
}
.access-card:hover::before { opacity: 1; }
.access-card[aria-disabled="true"] {
  opacity: 0.6;
  cursor: not-allowed;
}
.access-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: var(--accent-dim);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
}
.access-card--docs .access-icon { background: var(--accent2-dim); color: var(--accent2); }
.access-card--winserver .access-icon { background: rgba(111,74,214,0.12); color: #6f4ad6; }
.access-card--gantt .access-icon { background: rgba(255,107,53,0.1); color: var(--accent3); }
.access-icon svg { width: 26px; height: 26px; }
.access-body { flex: 1; }
.access-kicker {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--text3);
  letter-spacing: 0.15em;
  margin-bottom: 6px;
}
.access-body h3 {
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.015em;
  margin-bottom: 8px;
}
.access-body p {
  font-size: 13px;
  color: var(--text2);
  line-height: 1.65;
  margin-bottom: 14px;
}
.access-stats {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text3);
}
.access-stats strong {
  color: var(--accent);
  font-weight: 600;
}
.access-card--docs .access-stats strong { color: var(--accent2); }
.access-card--winserver .access-stats strong { color: #6f4ad6; }
.access-card--gantt .access-stats strong { color: var(--accent3); }
.badge-soon {
  background: rgba(255,107,53,0.1);
  color: var(--accent3);
  padding: 3px 10px;
  border-radius: 12px;
  border: 1px solid rgba(255,107,53,0.3);
  font-size: 10px;
  letter-spacing: 0.06em;
}
.access-arrow {
  position: absolute;
  bottom: 16px;
  right: 18px;
  font-size: 18px;
  color: var(--text3);
  transition: transform 0.2s, color 0.2s;
}
.access-card:hover:not([aria-disabled="true"]) .access-arrow {
  transform: translateX(4px);
  color: var(--accent);
}

/* HIGHLIGHTS */
.highlights-title {
  font-size: 1.3rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 1.25rem;
}
.highlights-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
}
.highlight {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  text-align: left;
}
.highlight-num {
  font-size: 2.4rem;
  font-weight: 700;
  font-family: var(--mono);
  color: var(--accent);
  line-height: 1;
  letter-spacing: -0.04em;
}
.highlight-label {
  font-size: 13px;
  color: var(--text);
  font-weight: 600;
  margin-top: 8px;
}
.highlight-sub {
  font-size: 11px;
  color: var(--text3);
  font-family: var(--mono);
  margin-top: 2px;
}

/* FOOTER */
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg2);
  padding: 1.75rem 2rem;
}
.footer-inner {
  max-width: 1600px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 12px;
  font-family: var(--mono);
  color: var(--text3);
}
.footer-left strong, .footer-right { color: var(--text2); }
.footer-right { text-align: right; }

@media (max-width: 700px) {
  .header-inner { padding: 12px 1rem; gap: 8px; }
  .brand-group { gap: 10px; }
  .divider { display: none; }
  .nav-links { order: 3; width: 100%; justify-content: center; padding-top: 6px; border-top: 1px solid var(--border); }
  .portal-main { padding: 2rem 1rem 3rem; gap: 2.5rem; }
  .footer-right { text-align: left; }
  .team-grid { grid-template-columns: 1fr; }
  .member-expand-inner { padding-left: 14px; }
  .access-card { padding: 1.5rem; }
  .team-footer { gap: 1.25rem; }
}