/* ============================================================
   BORING ILLINI — STYLESHEET
   Dark industrial theme with UIUC Illini Orange accents
   ============================================================ */

/* ── Reset & Base ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --orange:      #E84A27;
  --orange-dim:  #c73d1f;
  --orange-glow: rgba(232, 74, 39, 0.2);
  --bg:          #080808;
  --bg-1:        #0f0f0f;
  --bg-2:        #141414;
  --bg-3:        #1c1c1c;
  --border:      rgba(255,255,255,0.07);
  --border-hi:   rgba(255,255,255,0.14);
  --text:        #f5f5f5;
  --text-muted:  #888888;
  --text-dim:    #444444;
  --radius:      8px;
  --radius-lg:   12px;
  --font-display:'Bebas Neue', sans-serif;
  --font-head:   'Barlow Condensed', sans-serif;
  --font-body:   'Inter', sans-serif;
  --transition:  0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --nav-h:       72px;
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
strong { font-weight: 600; color: var(--text); }

/* ── Hero title tweak ─────────────────────────────────────── */
.title-the { font-size: clamp(56px, 9vw, 110px); }

/* ── Machine params bar ───────────────────────────────────── */
.machine-params {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 64px;
}
.param {
  background: var(--bg-2);
  padding: 20px 16px;
  text-align: center;
  transition: var(--transition);
}
.param:hover { background: var(--bg-3); }
.param-val { font-family: var(--font-display); font-size: 22px; color: var(--text); margin-bottom: 6px; line-height: 1; }
.param-key { font-family: var(--font-head); font-size: 11px; letter-spacing: 1.5px; text-transform: uppercase; color: var(--text-muted); }

/* ── Machine diagram caption ──────────────────────────────── */
.diagram-caption { text-align: center; font-size: 12px; color: var(--text-muted); margin-top: 16px; font-style: italic; }

/* ── Specs tables ─────────────────────────────────────────── */
.specs-table-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 64px;
}
.specs-table {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.specs-table-title {
  background: var(--bg-3);
  padding: 14px 20px;
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--orange);
}
.specs-row {
  display: flex;
  justify-content: space-between;
  padding: 11px 20px;
  font-size: 14px;
  border-bottom: 1px solid var(--border);
  transition: background 0.2s;
}
.specs-row:last-child { border-bottom: none; }
.specs-row:hover { background: rgba(255,255,255,0.03); }
.specs-row.header { background: var(--bg-3); font-family: var(--font-head); font-size: 12px; letter-spacing: 1px; text-transform: uppercase; color: var(--text-muted); }
.specs-row.highlight { background: rgba(232,74,39,0.07); }
.specs-row.total { background: rgba(232,74,39,0.12); font-family: var(--font-head); font-weight: 700; font-size: 15px; color: var(--text); }
.specs-row span:last-child { color: var(--text); font-weight: 500; }
.specs-row.total span:last-child { color: var(--orange); }

/* ── Subteam lead line ────────────────────────────────────── */
.subteam-lead {
  font-family: var(--font-head);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--orange);
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}

/* ── Team leads label ─────────────────────────────────────── */
.team-leads-label {
  font-family: var(--font-head);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 20px;
}

/* ── Advisor cards ────────────────────────────────────────── */
.advisors-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 32px;
}
.advisor-card {
  padding: 20px 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-2);
  transition: var(--transition);
}
.advisor-card:hover { border-color: var(--border-hi); }
.advisor-name { font-family: var(--font-head); font-size: 17px; font-weight: 700; color: var(--text); margin-bottom: 4px; }
.advisor-role { font-size: 13px; color: var(--orange); margin-bottom: 4px; font-family: var(--font-head); font-weight: 600; letter-spacing: 0.5px; }
.advisor-dept { font-size: 12px; color: var(--text-muted); }

/* ── Named sponsor boxes ──────────────────────────────────── */
.sponsor-logo-box.named { flex-direction: column; text-align: center; }
.sponsor-name-display { padding: 8px; }
.sponsor-name-main { font-family: var(--font-head); font-size: 18px; font-weight: 800; letter-spacing: 0.5px; color: var(--text); }
.sponsor-name-sub { font-size: 11px; color: var(--text-muted); margin-top: 3px; line-height: 1.4; }

/* ── Scrollbar ────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--bg-3); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--orange); }

/* ── Utility ──────────────────────────────────────────────── */
.container { max-width: 1200px; margin: 0 auto; padding: 0 32px; }
.section { padding: 72px 0; position: relative; }
.section-label {
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 16px;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(40px, 5vw, 64px);
  line-height: 1.0;
  letter-spacing: 1px;
  color: var(--text);
  margin-bottom: 24px;
}
.section-subtitle { color: var(--text-muted); max-width: 580px; font-size: 17px; line-height: 1.7; margin: 0 auto; }
.section-header { text-align: center; margin-bottom: 72px; }
.lead { font-size: 18px; line-height: 1.7; color: var(--text); margin-bottom: 20px; }
.accent { color: var(--orange); }

/* ── Reveal animations ────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
  transition-delay: var(--delay, 0s);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Buttons ──────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: 8px;
  font-family: var(--font-head);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  white-space: nowrap;
  text-decoration: none;
}
.btn-primary {
  background: var(--orange);
  color: #fff;
}
.btn-primary:hover { background: var(--orange-dim); transform: translateY(-2px); box-shadow: 0 8px 24px var(--orange-glow); }
.btn-ghost {
  background: rgba(255,255,255,0.07);
  color: var(--text);
  border: 1px solid var(--border-hi);
}
.btn-ghost:hover { background: rgba(255,255,255,0.12); transform: translateY(-2px); }
.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border-hi);
}
.btn-outline:hover { border-color: var(--orange); color: var(--orange); transform: translateY(-2px); }
.btn-large { padding: 16px 36px; font-size: 16px; }
.btn-sm { padding: 8px 16px; font-size: 13px; }
.btn-join-cta { background: var(--orange); color: #fff; }
.btn-join-cta:hover { background: var(--orange-dim); transform: translateY(-2px); box-shadow: 0 6px 20px var(--orange-glow); }

/* ─────────────────────────────────────────────────────────── */
/*  NAVIGATION                                                 */
/* ─────────────────────────────────────────────────────────── */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--nav-h);
  background: transparent;
  transition: background 0.4s ease, backdrop-filter 0.4s ease, border-bottom 0.4s ease;
}
#navbar.scrolled {
  background: rgba(8,8,8,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}
.nav-logo-img {
  height: 48px;
  width: auto;
  display: block;
}
.logo-mark {
  width: 36px;
  height: 36px;
  border: 2px solid var(--orange);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  transition: var(--transition);
}
.logo-mark:hover { box-shadow: 0 0 16px var(--orange-glow); }
.logo-mark.small { width: 28px; height: 28px; }
.logo-tunnel {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 2px solid var(--orange);
  position: relative;
}
.logo-tunnel::after {
  content: '';
  position: absolute;
  inset: 3px;
  background: var(--orange);
  border-radius: 50%;
}
.logo-text {
  font-family: var(--font-display);
  font-size: 22px;
  letter-spacing: 2px;
  color: var(--text);
}
.logo-illini { color: var(--orange); }
.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}
.nav-links a {
  font-family: var(--font-head);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: rgba(240,240,240,0.7);
  padding: 8px 14px;
  border-radius: 6px;
  transition: var(--transition);
}
.nav-links a:hover { color: var(--text); background: rgba(255,255,255,0.06); }
.nav-cta {
  background: var(--orange) !important;
  color: #fff !important;
  border-radius: 7px !important;
}
.nav-cta:hover { background: var(--orange-dim) !important; box-shadow: 0 4px 16px var(--orange-glow) !important; }
.hamburger { display: none; background: none; border: none; cursor: pointer; flex-direction: column; gap: 5px; padding: 8px; }
.hamburger span { display: block; width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: var(--transition); }
.mobile-menu {
  display: none;
  flex-direction: column;
  background: rgba(8,8,8,0.96);
  backdrop-filter: blur(20px);
  padding: 20px 32px 28px;
  border-bottom: 1px solid var(--border);
}
.mobile-menu a {
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: rgba(240,240,240,0.7);
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}
.mobile-menu a:last-child { border-bottom: none; color: var(--orange); }

/* ─────────────────────────────────────────────────────────── */
/*  HERO                                                       */
/* ─────────────────────────────────────────────────────────── */
.hero {
  position: relative;
  height: 100vh;
  min-height: 700px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: #000;
}
/* Photo slideshow */
.hero-photo-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1.8s ease;
}
.hero-slide.active { opacity: 1; }
/* Dark overlay gradient */
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(0,0,0,0.55) 0%,
    rgba(0,0,0,0.35) 40%,
    rgba(0,0,0,0.75) 85%,
    rgba(0,0,0,0.95) 100%
  );
  z-index: 1;
}
#tunnelCanvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
  opacity: 0.18;
}
.hero-grid-overlay {
  position: absolute;
  inset: 0;
  z-index: 2;
  background-image:
    linear-gradient(rgba(255,255,255,0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.015) 1px, transparent 1px);
  background-size: 80px 80px;
  pointer-events: none;
}
.hero-content {
  position: relative;
  z-index: 3;
  text-align: center;
  max-width: 900px;
  padding: 0 32px;
}
.hero-eyebrow {
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.55);
  margin-bottom: 20px;
}
.hero-title {
  display: flex;
  flex-direction: column;
  align-items: center;
  font-family: var(--font-display);
  font-size: clamp(80px, 14vw, 160px);
  line-height: 0.9;
  letter-spacing: 4px;
  margin-bottom: 28px;
}
.title-line { display: block; }
.title-line.accent {
  color: var(--orange);
  text-shadow: 0 0 60px rgba(232,74,39,0.5), 0 0 120px rgba(232,74,39,0.2);
}
.hero-subtitle {
  font-size: clamp(16px, 2.2vw, 20px);
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 28px;
}
.hero-badges {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 40px;
}
.badge {
  font-family: var(--font-head);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 6px 14px;
  border: 1px solid var(--border-hi);
  border-radius: 100px;
  color: var(--text-muted);
  background: rgba(255,255,255,0.04);
}
.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
.hero-scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-family: var(--font-head);
  font-size: 11px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--text-dim);
  z-index: 3;
}
.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--orange), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%, 100% { opacity: 0.4; transform: scaleY(1); }
  50% { opacity: 1; transform: scaleY(1.2); }
}
.hero-stats {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0;
  background: rgba(8,8,8,0.7);
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--border);
  padding: 28px 32px;
  z-index: 3;
}
.stat {
  text-align: center;
  padding: 0 48px;
}
.stat-number {
  font-family: var(--font-display);
  font-size: 44px;
  color: var(--orange);
  line-height: 1;
}
.stat-label {
  font-family: var(--font-head);
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: 6px;
}
.stat-divider { width: 1px; height: 48px; background: var(--border); }

/* ─────────────────────────────────────────────────────────── */
/*  ABOUT                                                      */
/* ─────────────────────────────────────────────────────────── */
.about { background: var(--bg); }
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.about-text p { color: var(--text-muted); margin-bottom: 16px; font-size: 15px; line-height: 1.8; }
.about-text p:first-child { color: var(--text); font-size: 17px; }
.about-photo-split {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  height: 100%;
  min-height: 500px;
}
.about-photo-split img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}
.about-photo-split-overlay {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 24px;
  background: linear-gradient(transparent, rgba(0,0,0,0.8));
}
.about-photo-credit {
  font-family: var(--font-head);
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
}
.about-values { margin-top: 40px; display: flex; flex-direction: column; gap: 20px; }
.value-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
}
.value-item:last-child { border-bottom: none; }
.value-icon { font-size: 20px; color: var(--orange); margin-top: 2px; flex-shrink: 0; width: 28px; text-align: center; }
.value-title { font-family: var(--font-head); font-size: 15px; font-weight: 700; letter-spacing: 0.5px; color: var(--text); margin-bottom: 4px; }
.value-desc { font-size: 13px; color: var(--text-muted); }
.about-visual {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: auto auto;
  gap: 16px;
}
.about-card {
  padding: 24px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--bg-2);
}
.about-card .card-label {
  font-family: var(--font-head);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 12px;
}
.main-card {
  grid-column: 1 / -1;
  border-color: rgba(232,74,39,0.2);
  background: linear-gradient(135deg, rgba(232,74,39,0.07) 0%, var(--bg-2) 60%);
}
.main-card p { font-size: 17px; line-height: 1.6; color: var(--text); font-style: italic; }
.stat-card { background: var(--orange); border-color: var(--orange); text-align: center; }
.stat-card .big-number { font-family: var(--font-display); font-size: 64px; color: #fff; line-height: 1; }
.stat-card .unit { font-size: 36px; }
.stat-card .card-desc { font-size: 13px; color: rgba(255,255,255,0.8); margin-top: 8px; line-height: 1.4; }
.location-card { background: var(--bg-3); }
.location-name { font-family: var(--font-display); font-size: 40px; color: var(--text); line-height: 1; }
.location-sub { font-size: 13px; color: var(--text-muted); margin-top: 6px; }

/* ─────────────────────────────────────────────────────────── */
/*  MACHINE                                                    */
/* ─────────────────────────────────────────────────────────── */
.machine { background: var(--bg); overflow: hidden; }
.machine-bg-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-display);
  font-size: 22vw;
  color: rgba(255,255,255,0.02);
  white-space: nowrap;
  pointer-events: none;
  user-select: none;
  letter-spacing: 10px;
}
.machine-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.machine-hero-photo {
  width: 100vw;
  margin-left: calc(-50vw + 50%);
  height: 60vh;
  min-height: 400px;
  overflow: hidden;
  position: relative;
  margin-bottom: 80px;
}
.machine-hero-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
  display: block;
}
.machine-hero-photo-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(0,0,0,0.3) 0%,
    rgba(0,0,0,0.1) 50%,
    rgba(8,8,8,0.9) 100%
  );
}
.machine-hero-label {
  position: absolute;
  bottom: 32px;
  left: 48px;
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 64px);
  color: rgba(255,255,255,0.9);
  letter-spacing: 4px;
  line-height: 1;
}
.machine-hero-sublabel {
  position: absolute;
  bottom: 32px;
  right: 48px;
  font-family: var(--font-head);
  font-size: 12px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
}

/* TBM Wireframe */
.machine-diagram { display: flex; flex-direction: column; align-items: center; width: 100%; }

.machine-wireframe-wrap {
  position: relative;
  width: 100%;
  max-width: 640px;
  border-radius: var(--radius);
  overflow: visible;
  background: transparent;
  /* maintain 16:9 ratio of source image */
  aspect-ratio: 960 / 540;
}

@keyframes machineFloat {
  0%,100% { transform: translateY(0px) translateX(0px); }
  25%      { transform: translateY(-8px) translateX(3px); }
  50%      { transform: translateY(-4px) translateX(-2px); }
  75%      { transform: translateY(-10px) translateX(1px); }
}

.tbm-wireframe-img {
  width: 100%;
  height: auto;
  display: block;
  position: relative;
  z-index: 1;
  /* Remove white background: invert flips white→black, screen blend makes black transparent */
  filter: invert(1) brightness(0.92) sepia(0.15) hue-rotate(170deg);
  mix-blend-mode: screen;
  animation: machineFloat 7s ease-in-out infinite;
}

.cutterhead-overlay {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 2;
  pointer-events: none;
}
/* Spec cards */
.machine-specs { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.spec-card {
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-1);
  transition: var(--transition);
}
.spec-card:hover { border-color: rgba(232,74,39,0.3); background: var(--bg-2); transform: translateY(-3px); }
.spec-icon { font-size: 22px; color: var(--orange); margin-bottom: 10px; display: block; }
.spec-name { font-family: var(--font-head); font-size: 15px; font-weight: 700; color: var(--text); margin-bottom: 8px; letter-spacing: 0.5px; }
.spec-detail { font-size: 13px; color: var(--text-muted); line-height: 1.6; }

/* ─────────────────────────────────────────────────────────── */
/*  COMPETITION                                               */
/* ─────────────────────────────────────────────────────────── */
.competition { background: var(--bg-1); }
.competition-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
  margin-bottom: 72px;
}
.comp-intro p { color: var(--text-muted); font-size: 15px; line-height: 1.8; margin-bottom: 16px; }
.comp-intro .lead { color: var(--text); font-size: 17px; }
.comp-intro .btn { margin-top: 16px; }
/* Timeline */
.comp-timeline { display: flex; flex-direction: column; gap: 0; }
.timeline-item { display: flex; gap: 24px; position: relative; }
.timeline-item::before {
  content: '';
  position: absolute;
  left: 10px;
  top: 28px;
  bottom: -8px;
  width: 1px;
  background: var(--border);
}
.timeline-item:last-child::before { display: none; }
.timeline-marker {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 2px solid var(--border-hi);
  background: var(--bg-2);
  flex-shrink: 0;
  margin-top: 4px;
  transition: var(--transition);
  position: relative;
  z-index: 1;
}
.timeline-marker.active { border-color: var(--orange); background: var(--orange); box-shadow: 0 0 12px var(--orange-glow); }
.timeline-content { padding-bottom: 36px; }
.timeline-label { font-family: var(--font-head); font-size: 11px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; color: var(--orange); margin-bottom: 4px; }
.timeline-title { font-family: var(--font-head); font-size: 18px; font-weight: 700; color: var(--text); margin-bottom: 6px; }
.timeline-desc { font-size: 14px; color: var(--text-muted); line-height: 1.6; }
/* Comp stats */
.comp-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.comp-stat {
  background: var(--bg-2);
  padding: 32px 24px;
  text-align: center;
  transition: var(--transition);
}
.comp-stat:hover { background: var(--bg-3); }
.comp-stat-num { font-family: var(--font-display); font-size: 36px; color: var(--orange); margin-bottom: 8px; }
.comp-stat-label { font-family: var(--font-head); font-size: 12px; letter-spacing: 1px; text-transform: uppercase; color: var(--text-muted); }

/* ─────────────────────────────────────────────────────────── */
/*  SUBTEAMS                                                   */
/* ─────────────────────────────────────────────────────────── */
.subteams { background: var(--bg); }
.subteams-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.subteam-card {
  padding: 32px 28px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg-1);
  transition: var(--transition);
  cursor: default;
}
.subteam-card:hover {
  border-color: rgba(232,74,39,0.35);
  background: var(--bg-2);
  transform: translateY(-6px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.4), 0 0 0 1px rgba(232,74,39,0.1);
}
.subteam-icon { font-size: 32px; color: var(--orange); display: block; margin-bottom: 16px; }
.subteam-name { font-family: var(--font-head); font-size: 22px; font-weight: 700; letter-spacing: 0.5px; color: var(--text); margin-bottom: 10px; }
.subteam-desc { font-size: 14px; color: var(--text-muted); line-height: 1.6; }

.team-photo-banner {
  width: 100%;
  position: relative;
  border-radius: var(--radius);
  margin-bottom: 64px;
  overflow: hidden;
}
.team-photo-banner img {
  width: 100%;
  height: auto;
  display: block;
}
.team-photo-banner-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(0,0,0,0.1) 0%, rgba(0,0,0,0.6) 100%);
  display: flex;
  align-items: flex-end;
  padding: 32px 40px;
}
.team-photo-caption {
  font-family: var(--font-display);
  font-size: clamp(24px, 3vw, 40px);
  color: rgba(255,255,255,0.9);
  letter-spacing: 2px;
}

/* ─────────────────────────────────────────────────────────── */
/*  TEAM                                                       */
/* ─────────────────────────────────────────────────────────── */
.team { background: var(--bg-1); }
.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 40px;
}
.team-card {
  padding: 28px 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg-2);
  text-align: center;
  transition: var(--transition);
}
.team-card:hover { border-color: var(--border-hi); transform: translateY(-4px); box-shadow: 0 16px 32px rgba(0,0,0,0.3); }
.team-avatar {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  background: hsl(var(--hue, 15), 60%, 20%);
  border: 2px solid hsl(var(--hue, 15), 60%, 35%);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  overflow: hidden;
  flex-shrink: 0;
}
.team-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
  border-radius: 50%;
}
/* When photo is present, hide the initials fallback */
.team-avatar:has(img) .avatar-initials { display: none; }
.avatar-initials { font-family: var(--font-display); font-size: 22px; color: hsl(var(--hue, 15), 60%, 65%); letter-spacing: 1px; }
.team-name { font-family: var(--font-head); font-size: 16px; font-weight: 700; color: var(--text); margin-bottom: 4px; }
.team-role { font-size: 13px; color: var(--orange); margin-bottom: 4px; font-family: var(--font-head); font-weight: 600; }
.team-major { font-size: 12px; color: var(--text-muted); }
.team-card--join {
  border-style: dashed;
  background: transparent;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.join-plus { font-family: var(--font-display); font-size: 56px; color: var(--border-hi); line-height: 1; margin-bottom: 12px; transition: var(--transition); }
.team-card--join:hover .join-plus { color: var(--orange); }
.team-cta { text-align: center; color: var(--text-muted); font-size: 15px; }
.team-cta a { color: var(--orange); text-decoration: underline; text-underline-offset: 3px; }

/* ── Linked team card (wraps with <a>) ────────────────────── */
a.team-card--linked {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-decoration: none;
  color: inherit;
  position: relative;
  cursor: pointer;
}
a.team-card--linked:hover { border-color: #0A66C2; transform: translateY(-4px); box-shadow: 0 12px 28px rgba(10,102,194,0.2); }
.linkedin-badge {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 22px;
  height: 22px;
  color: var(--text-dim);
  transition: var(--transition);
}
.linkedin-badge svg { width: 100%; height: 100%; }
a.team-card--linked:hover .linkedin-badge { color: #0A66C2; }

/* ─────────────────────────────────────────────────────────── */
/*  SPONSORS                                                   */
/* ─────────────────────────────────────────────────────────── */
.sponsors { background: var(--bg); }
.sponsor-tiers { display: flex; flex-direction: column; gap: 48px; margin-bottom: 72px; }
.tier-label {
  font-family: var(--font-head);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  text-align: center;
  margin-bottom: 20px;
  padding: 6px 16px;
  display: inline-block;
  border-radius: 100px;
  border: 1px solid;
  position: relative;
  left: 50%;
  transform: translateX(-50%);
}
.tier-gold { color: #FFD700; border-color: rgba(255,215,0,0.3); background: rgba(255,215,0,0.05); }
.tier-silver { color: #C0C0C0; border-color: rgba(192,192,192,0.3); background: rgba(192,192,192,0.05); }
.tier-bronze { color: #CD7F32; border-color: rgba(205,127,50,0.3); background: rgba(205,127,50,0.05); }
.sponsor-row { display: flex; justify-content: center; align-items: center; gap: 24px; flex-wrap: wrap; }
.sponsor-logo-box {
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid #e0e0e0;
  border-radius: var(--radius);
  background: #ffffff;
  transition: var(--transition);
  overflow: hidden;
  padding: 16px;
}
.sponsor-logo-box:hover { border-color: var(--orange); box-shadow: 0 4px 20px rgba(0,0,0,0.15); transform: translateY(-2px); }
.sponsor-placeholder { color: #999; }
.sponsor-placeholder span { font-family: var(--font-head); font-size: 13px; letter-spacing: 1px; text-transform: uppercase; color: #888; }
.large { width: 380px; height: 160px; }
.medium { width: 240px; height: 100px; }
.small { width: 170px; height: 78px; }
.xsmall { width: 130px; height: 58px; }

/* ensure logo images fill and fit the box */
.sponsor-logo-box img {
  width: 90%;
  height: 90%;
  object-fit: contain;
  filter: none;
  transition: var(--transition);
}
.sponsor-logo-box:hover img { transform: scale(1.04); }
/* ── About Highlights (photos + award + elon) ──────────────── */
.about-highlights {
  margin-top: 64px;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.about-photos {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.about-photo-wrap {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 16/9;
}

.about-photo-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.about-photo-wrap:hover img { transform: scale(1.04); }

.photo-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 10px 16px;
  background: linear-gradient(transparent, rgba(0,0,0,0.7));
  color: #fff;
  font-size: 13px;
  font-family: var(--font-head);
  letter-spacing: 1px;
  text-transform: uppercase;
}

.about-award-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

/* ROTY card */
.roty-card {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  background: linear-gradient(135deg, var(--bg-2), var(--bg-3));
  border: 1px solid rgba(232,74,39,0.3);
  border-radius: var(--radius);
  padding: 28px 24px;
}

.roty-trophy { font-size: 40px; line-height: 1; flex-shrink: 0; }

.roty-label {
  font-family: var(--font-head);
  font-size: 22px;
  letter-spacing: 2px;
  color: var(--orange);
  margin-bottom: 4px;
}

.roty-event {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 8px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.roty-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Elon repost card */
a.elon-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: #000;
  border: 1px solid #2f3336;
  border-radius: var(--radius);
  padding: 20px 22px;
  text-decoration: none;
  transition: border-color 0.2s, background 0.2s;
  cursor: pointer;
}

a.elon-card:hover { border-color: #71767b; background: #0d0d0d; }

.elon-repost-tag {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: #71767b;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.elon-header { display: flex; align-items: center; gap: 10px; }

.elon-avatar {
  width: 36px;
  height: 36px;
  background: #000;
  border-radius: 50%;
  border: 1px solid #333;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.elon-name { color: #fff; font-weight: 700; font-size: 15px; line-height: 1.2; }
.elon-handle { color: #71767b; font-size: 13px; }

.elon-body {
  color: #e7e9ea;
  font-size: 15px;
  line-height: 1.6;
}

.elon-body strong { color: #fff; }

.elon-stats {
  display: flex;
  align-items: center;
  gap: 6px;
  color: #71767b;
  font-size: 13px;
  padding-top: 8px;
  border-top: 1px solid #2f3336;
}

.elon-views-icon { display: flex; align-items: center; }
.elon-views { font-weight: 600; }

@media (max-width: 768px) {
  .about-photos { grid-template-columns: 1fr; }
  .about-award-row { grid-template-columns: 1fr; }
}

/* Sponsor CTA */
.sponsor-cta-card {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 60px;
  align-items: start;
  padding: 48px;
  border: 1px solid rgba(232,74,39,0.2);
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(232,74,39,0.05) 0%, var(--bg-1) 60%);
}
.sponsor-cta-card h3 { font-family: var(--font-display); font-size: 36px; color: var(--text); margin-bottom: 16px; }
.sponsor-cta-card p { color: var(--text-muted); font-size: 15px; line-height: 1.8; margin-bottom: 20px; }
.sponsor-perks { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.sponsor-perks li { font-size: 14px; color: var(--text-muted); padding-left: 20px; position: relative; }
.sponsor-perks li::before { content: '—'; position: absolute; left: 0; color: var(--orange); }
.sponsorship-tiers-preview { display: flex; flex-direction: column; gap: 12px; margin-bottom: 24px; }
.tier-preview {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 18px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-2);
  transition: var(--transition);
}
.tier-preview:hover { border-color: var(--orange); }
.tier-preview-name { font-family: var(--font-head); font-size: 14px; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; color: var(--text); }
.tier-preview-amount { font-family: var(--font-display); font-size: 20px; color: var(--orange); }

/* ─────────────────────────────────────────────────────────── */
/*  JOIN                                                       */
/* ─────────────────────────────────────────────────────────── */
.join { background: var(--bg-1); position: relative; overflow: hidden; }
.join-bg { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
.jc {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(232,74,39,0.08);
}
.jc1 { width: 600px; height: 600px; top: -200px; right: -150px; }
.jc2 { width: 400px; height: 400px; bottom: -100px; left: -100px; border-color: rgba(232,74,39,0.05); }
.jc3 { width: 250px; height: 250px; top: 50%; right: 10%; border-color: rgba(232,74,39,0.06); }
.join-content {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 80px;
  align-items: start;
  position: relative;
  z-index: 1;
}
.join-disciplines {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 24px 0 36px;
}
.join-disciplines span {
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 7px 16px;
  border: 1px solid var(--border-hi);
  border-radius: 100px;
  color: var(--text-muted);
  transition: var(--transition);
}
.join-disciplines span:hover { border-color: var(--orange); color: var(--orange); }
.join-actions { display: flex; gap: 16px; flex-wrap: wrap; }
/* Info cards */
.join-info { display: flex; flex-direction: column; gap: 16px; }
.info-card {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-2);
  transition: var(--transition);
}
.info-card:hover { border-color: var(--border-hi); }
.info-icon { font-size: 20px; flex-shrink: 0; width: 28px; margin-top: 2px; }
.info-title { font-family: var(--font-head); font-size: 13px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; color: var(--text); margin-bottom: 4px; }
.info-desc { font-size: 14px; color: var(--text-muted); line-height: 1.6; }
.info-desc a { color: var(--orange); }
.info-desc a:hover { text-decoration: underline; }
.social-links-block { padding: 20px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--bg-2); }
.social-links { display: flex; gap: 12px; margin-top: 14px; }
.social-btn {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: var(--transition);
}
.social-btn svg { width: 18px; height: 18px; }
.social-btn:hover { border-color: currentColor; transform: translateY(-3px); }
.social-btn.instagram:hover { color: #E1306C; }
.social-btn.linkedin:hover { color: #0A66C2; }
.social-btn.twitter:hover { color: #1DA1F2; }
.social-btn.youtube:hover { color: #FF0000; }

/* ─────────────────────────────────────────────────────────── */
/*  FOOTER                                                     */
/* ─────────────────────────────────────────────────────────── */
.footer {
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 60px 0 32px;
}
.footer-grid { display: grid; grid-template-columns: 1fr 2fr; gap: 80px; margin-bottom: 48px; }
.footer-brand .footer-logo { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.footer-brand p { font-size: 14px; color: var(--text-muted); line-height: 1.7; margin-bottom: 6px; }
.footer-affiliation { font-size: 12px; color: var(--text-dim) !important; }
.footer-links { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.footer-col { display: flex; flex-direction: column; gap: 12px; }
.footer-col-title { font-family: var(--font-head); font-size: 12px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; color: var(--text-muted); margin-bottom: 4px; }
.footer-col a { font-size: 14px; color: var(--text-dim); transition: var(--transition); }
.footer-col a:hover { color: var(--orange); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 28px;
  border-top: 1px solid var(--border);
}
.footer-copy { font-size: 13px; color: var(--text-dim); }
.footer-made { font-size: 13px; color: var(--text-dim); }

/* ─────────────────────────────────────────────────────────── */
/*  RESPONSIVE                                                 */
/* ─────────────────────────────────────────────────────────── */
@media (max-width: 1100px) {
  .about-grid { gap: 48px; }
  .machine-layout { gap: 48px; }
  .competition-grid { gap: 48px; }
  .subteams-grid { grid-template-columns: repeat(2, 1fr); }
  .team-grid { grid-template-columns: repeat(3, 1fr); }
  .join-content { gap: 48px; }
  .sponsor-cta-card { gap: 40px; }
  .machine-params { grid-template-columns: repeat(3, 1fr); }
  .specs-table-row { grid-template-columns: 1fr; }
  .advisors-grid { grid-template-columns: 1fr; }
}

@media (max-width: 900px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .about-grid { grid-template-columns: 1fr; }
  .about-visual { grid-template-columns: 1fr 1fr; }
  .machine-layout { grid-template-columns: 1fr; }
  .machine-diagram { margin-bottom: 40px; }
  .competition-grid { grid-template-columns: 1fr; }
  .comp-stats { grid-template-columns: repeat(2, 1fr); }
  .team-grid { grid-template-columns: repeat(2, 1fr); }
  .join-content { grid-template-columns: 1fr; }
  .sponsor-cta-card { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 40px; }
  .footer-links { grid-template-columns: repeat(3, 1fr); }
  .hero-stats { flex-direction: column; gap: 16px; }
  .stat-divider { width: 40px; height: 1px; }
  .stat { padding: 8px 0; }
}

@media (max-width: 640px) {
  .container { padding: 0 20px; }
  .section { padding: 52px 0; }
  .subteams-grid { grid-template-columns: 1fr; }
  .team-grid { grid-template-columns: 1fr 1fr; }
  .comp-stats { grid-template-columns: repeat(2, 1fr); }
  .footer-links { grid-template-columns: 1fr 1fr; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
  .about-visual { grid-template-columns: 1fr; }
  .machine-specs { grid-template-columns: 1fr; }
  .machine-params { grid-template-columns: repeat(2, 1fr); }
  .hero-title { font-size: 18vw; }
  .title-the { font-size: 11vw; }
  .hero-stats { display: none; }
}