/* ============================================================
   IGEN ENERGY99CHALLENGE — Professional Stylesheet
   ============================================================ */

/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  color: #1a1a2e; background: #fff;
  overflow-x: hidden; line-height: 1.6;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
strong { font-weight: 700; }

/* ── Variables ── */
:root {
  --green:       #1B5E20;
  --green-mid:   #2E7D32;
  --green-light: #43A047;
  --blue:        #0288D1;
  --blue-dark:   #01579B;
  --gold:        #FFD700;
  --gold-dark:   #F9A825;
  --dark:        #0d1117;
  --dark2:       #161b22;
  --white:       #ffffff;
  --off-white:   #f8faf8;
  --text:        #1a1a2e;
  --text-muted:  #6b7280;
  --border:      rgba(0,0,0,0.08);
  --radius:      16px;
  --radius-sm:   8px;
  --shadow:      0 4px 24px rgba(0,0,0,0.07);
  --shadow-lg:   0 12px 48px rgba(0,0,0,0.14);
  --transition:  0.3s cubic-bezier(0.4,0,0.2,1);
}

/* ── Loader ── */
.loader {
  position: fixed; inset: 0; z-index: 9999;
  background: var(--dark);
  display: flex; align-items: center; justify-content: center;
  transition: opacity 0.5s, visibility 0.5s;
}
.loader.hidden { opacity: 0; visibility: hidden; pointer-events: none; }
.loader-inner { text-align: center; }
.loader-inner img { width: 100px; margin: 0 auto 1.5rem; filter: brightness(0) invert(1); }
.loader-bar { width: 200px; height: 3px; background: rgba(255,255,255,0.1); border-radius: 99px; overflow: hidden; }
.loader-fill { height: 100%; width: 0; background: linear-gradient(90deg, var(--green-light), var(--gold)); border-radius: 99px; animation: loadFill 1.2s ease forwards; }
@keyframes loadFill { to { width: 100%; } }

/* ── Navbar ── */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 0;
  transition: background var(--transition), box-shadow var(--transition), padding var(--transition);
}
.navbar.scrolled {
  background: rgba(13,17,23,0.97);
  backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 rgba(255,255,255,0.06);
}
.nav-container {
  max-width: 1280px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem 2rem;
  transition: padding var(--transition);
}
.navbar.scrolled .nav-container { padding: 0.6rem 2rem; }
.nav-brand { display: flex; align-items: center; flex-shrink: 0; }
.nav-logo-img {
  height: 52px;
  width: auto;
  object-fit: contain;
  object-position: left center;
  display: block;
  filter: brightness(0) invert(1);
  transition: height var(--transition);
}
.navbar.scrolled .nav-logo-img { height: 40px; }
.nav-menu {
  list-style: none; display: flex; align-items: center; gap: 0.25rem;
}
.nav-menu a {
  color: rgba(255,255,255,0.8); font-size: 0.9rem; font-weight: 500;
  padding: 0.5rem 0.85rem; border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
  white-space: nowrap;
}
.nav-menu a:hover { color: #fff; background: rgba(255,255,255,0.08); }
.nav-menu a.active { color: var(--gold); }
.nav-cta {
  background: var(--green-mid) !important;
  color: #fff !important; padding: 0.5rem 1.2rem !important;
  border-radius: 50px !important; font-weight: 600 !important;
  transition: background var(--transition), transform var(--transition) !important;
}
.nav-cta:hover { background: var(--green-light) !important; transform: translateY(-1px); }
.hamburger {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 4px;
}
.hamburger span {
  display: block; width: 24px; height: 2px;
  background: #fff; border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Hero ── */
.hero {
  min-height: 100vh;
  background: linear-gradient(135deg, #0a2e0a 0%, #0d2137 50%, #0a1628 100%);
  display: flex; align-items: center; justify-content: center;
  text-align: center; padding: 7rem 1.5rem 5rem;
  position: relative; overflow: hidden;
}
.hero-overlay {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 50% 0%, rgba(27,94,32,0.4) 0%, transparent 70%),
              radial-gradient(ellipse at 80% 80%, rgba(2,136,209,0.2) 0%, transparent 60%);
  pointer-events: none;
}
#particles { position: absolute; inset: 0; pointer-events: none; }
.hero-content { position: relative; z-index: 2; max-width: 900px; margin: 0 auto; }
.hero-chips { display: flex; flex-wrap: wrap; gap: 0.5rem; justify-content: center; margin-bottom: 1.5rem; }
.chip {
  background: rgba(255,255,255,0.1); color: rgba(255,255,255,0.85);
  border: 1px solid rgba(255,255,255,0.15);
  padding: 0.3rem 0.9rem; border-radius: 50px;
  font-size: 0.78rem; font-weight: 500; letter-spacing: 0.02em;
  backdrop-filter: blur(8px);
}
/* Hero Title — Professional Typographic Hierarchy */
.hero-title {
  display: flex; flex-direction: column; align-items: center;
  gap: 0.15em; margin-bottom: 1.25rem;
}

/* Line 1 — "IGEN · UNDESA" — small institutional label */
.ht-eyebrow {
  font-family: 'Inter', sans-serif;
  font-size: clamp(0.75rem, 1.5vw, 0.95rem);
  font-weight: 600; letter-spacing: 0.35em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.45);
  border: 1px solid rgba(255,255,255,0.12);
  padding: 0.35em 1.4em; border-radius: 50px;
  background: rgba(255,255,255,0.04);
  backdrop-filter: blur(6px);
}

/* Line 2 — "ENERGY99CHALLENGE" — the power word */
.ht-main {
  font-family: 'Barlow Condensed', 'Inter', sans-serif;
  font-size: clamp(3rem, 9vw, 7.5rem);
  font-weight: 900; letter-spacing: -0.01em;
  line-height: 0.95;
  text-transform: uppercase;
  color: #ffffff;
  text-shadow: 0 2px 40px rgba(0,0,0,0.4);
  position: relative;
}

/* "99" — the number gets the gold+green gradient accent */
.ht-accent {
  background: linear-gradient(135deg, #FFD700 0%, #43A047 60%, #0288D1 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
  font-style: italic;
}

/* Line 3 — "V 2.0" — version badge with flanking lines */
.ht-version-row {
  display: flex; align-items: center; gap: 1rem;
  width: 100%; justify-content: center; margin-top: 0.2em;
}
.ht-version-line {
  flex: 1; max-width: 120px; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,215,0,0.4), transparent);
}
.ht-version-badge {
  font-family: 'Barlow Condensed', 'Inter', sans-serif;
  font-size: clamp(0.85rem, 1.8vw, 1.1rem);
  font-weight: 700; letter-spacing: 0.3em;
  color: var(--gold); text-transform: uppercase;
  padding: 0.3em 1.2em;
  border: 1px solid rgba(255,215,0,0.3);
  border-radius: 4px;
  background: rgba(255,215,0,0.06);
}
.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: rgba(255,255,255,0.7); margin-bottom: 2.5rem;
}
.hero-subtitle strong { color: var(--gold); }

/* Hero Stats */
.hero-stats {
  display: flex; align-items: center; justify-content: center;
  flex-wrap: wrap; gap: 0; margin-bottom: 2.5rem;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius); backdrop-filter: blur(12px);
  overflow: hidden; max-width: 680px; margin-left: auto; margin-right: auto;
}
.hstat { padding: 1.5rem 2rem; flex: 1; min-width: 160px; }
.hstat-divider { width: 1px; height: 60px; background: rgba(255,255,255,0.1); flex-shrink: 0; }
.hstat-num {
  display: block; font-size: 2rem; font-weight: 800;
  color: var(--gold); line-height: 1; margin-bottom: 0.3rem;
}
.hstat-label { font-size: 0.78rem; color: rgba(255,255,255,0.6); font-weight: 500; }

/* Hero Buttons */
.hero-actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; margin-bottom: 2rem; }
.btn-hero-primary {
  display: inline-flex; align-items: center; gap: 0.5rem;
  background: linear-gradient(135deg, var(--green-mid), var(--green-light));
  color: #fff; padding: 0.85rem 2rem; border-radius: 50px;
  font-weight: 700; font-size: 1rem;
  box-shadow: 0 4px 20px rgba(27,94,32,0.4);
  transition: transform var(--transition), box-shadow var(--transition);
}
.btn-hero-primary:hover { transform: translateY(-3px); box-shadow: 0 8px 32px rgba(27,94,32,0.5); }
.btn-hero-ghost {
  display: inline-flex; align-items: center;
  border: 1.5px solid rgba(255,255,255,0.3); color: #fff;
  padding: 0.85rem 2rem; border-radius: 50px;
  font-weight: 600; font-size: 1rem;
  transition: background var(--transition), border-color var(--transition);
}
.btn-hero-ghost:hover { background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.5); }

/* SDG Pills */
.hero-sdg { display: flex; gap: 0.75rem; justify-content: center; flex-wrap: wrap; }
.sdg-pill {
  padding: 0.4rem 1rem; border-radius: 50px;
  font-size: 0.82rem; font-weight: 700; color: #fff;
}
.sdg7 { background: #F9A825; }
.sdg12 { background: #BF360C; }
.sdg13 { background: #2E7D32; }

/* Scroll hint */
.hero-scroll-hint {
  position: absolute; bottom: 2rem; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 0.5rem;
  color: rgba(255,255,255,0.4); font-size: 0.75rem; letter-spacing: 0.1em;
  text-transform: uppercase;
}
.scroll-line {
  width: 1px; height: 40px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.4), transparent);
  animation: scrollPulse 1.5s ease-in-out infinite;
}
@keyframes scrollPulse { 0%,100%{opacity:0.4;transform:scaleY(1)} 50%{opacity:1;transform:scaleY(1.2)} }

/* ── Sections ── */
.section { padding: 6rem 1.5rem; }
.section-dark { background: var(--dark); }
.container { max-width: 1100px; margin: 0 auto; }
.section-label {
  display: inline-block; font-size: 0.78rem; font-weight: 700;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--green-light); margin-bottom: 0.75rem;
  padding: 0.3rem 0.9rem; background: rgba(67,160,71,0.1);
  border-radius: 50px; border: 1px solid rgba(67,160,71,0.2);
}
.section-label.light { color: var(--gold); background: rgba(255,215,0,0.1); border-color: rgba(255,215,0,0.2); }
.section-heading {
  font-family: 'Playfair Display', serif;
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 800; line-height: 1.2;
  color: var(--text); margin-bottom: 1rem;
}
.section-heading.light { color: #fff; }
.section-desc {
  font-size: 1.05rem; color: var(--text-muted);
  max-width: 680px; line-height: 1.75; margin-bottom: 3rem;
}
.section-desc.light { color: rgba(255,255,255,0.65); }
.text-green { color: var(--green-mid); }
.text-gold { color: var(--gold); }
.stage-tag {
  display: inline-block; background: var(--green-mid); color: #fff;
  font-size: 0.78rem; font-weight: 700; letter-spacing: 0.1em;
  text-transform: uppercase; padding: 0.35rem 1rem; border-radius: 50px;
  margin-bottom: 0.75rem;
}

/* ── About Cards ── */
.about-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem; margin-bottom: 3rem;
}
.about-card {
  background: var(--off-white); border-radius: var(--radius);
  padding: 2rem; border: 1px solid var(--border);
  position: relative; overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}
.about-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.about-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--green-mid), var(--blue));
}
.about-card-num {
  font-size: 3.5rem; font-weight: 900; color: rgba(27,94,32,0.07);
  position: absolute; top: 1rem; right: 1.5rem; line-height: 1;
  font-family: 'Playfair Display', serif;
}
.about-card-icon {
  width: 48px; height: 48px; background: rgba(27,94,32,0.08);
  border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center;
  margin-bottom: 1rem;
}
.about-card-icon svg { width: 24px; height: 24px; color: var(--green-mid); }
.about-card h3 { font-size: 1.15rem; font-weight: 700; color: var(--text); margin-bottom: 0.5rem; }
.about-card p { font-size: 0.93rem; color: var(--text-muted); line-height: 1.65; }

/* SDG Row */
.sdg-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1rem; }
.sdg-card {
  display: flex; align-items: center; gap: 1rem;
  padding: 1.2rem 1.5rem; border-radius: var(--radius);
  color: #fff;
}
.sdg7-card { background: linear-gradient(135deg, #F57F17, #F9A825); }
.sdg12-card { background: linear-gradient(135deg, #BF360C, #E64A19); }
.sdg13-card { background: linear-gradient(135deg, #1B5E20, #2E7D32); }
.sdg-num {
  font-size: 2.5rem; font-weight: 900; opacity: 0.9;
  font-family: 'Playfair Display', serif; line-height: 1; flex-shrink: 0;
}
.sdg-card strong { display: block; font-size: 0.95rem; margin-bottom: 0.2rem; }
.sdg-card small { font-size: 0.78rem; opacity: 0.85; }

/* ── Stage 01 ── */
.ensav-image {
  border-radius: var(--radius); overflow: hidden;
  margin-bottom: 3rem; position: relative;
  box-shadow: var(--shadow-lg);
  max-width: 700px; margin-left: auto; margin-right: auto;
}
.ensav-image img { width: 100%; height: auto; display: block; }
.ensav-caption {
  position: absolute; bottom: 0; left: 0; right: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.7), transparent);
  color: #fff; padding: 1.5rem 1rem 0.75rem;
  font-size: 0.9rem; font-weight: 600; text-align: center;
}
.steps-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}
.step-card {
  background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius); padding: 2rem;
  text-align: center; position: relative;
  transition: background var(--transition), transform var(--transition);
}
.step-card:hover { background: rgba(255,255,255,0.07); transform: translateY(-4px); }
.step-circle {
  width: 44px; height: 44px; border-radius: 50%;
  background: linear-gradient(135deg, var(--green-mid), var(--green-light));
  color: #fff; font-weight: 800; font-size: 1.1rem;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 1rem;
}
.step-icon-wrap {
  width: 52px; height: 52px; margin: 0 auto 1rem;
  background: rgba(255,255,255,0.06); border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
}
.step-icon-wrap svg { width: 26px; height: 26px; color: var(--gold); }
.step-card h4 { color: #fff; font-size: 1rem; font-weight: 700; margin-bottom: 0.5rem; }
.step-card p { color: rgba(255,255,255,0.6); font-size: 0.88rem; line-height: 1.6; margin-bottom: 1rem; }
.step-card strong { color: var(--gold); }
.step-link {
  color: var(--gold); font-size: 0.85rem; font-weight: 600;
  transition: opacity var(--transition);
}
.step-link:hover { opacity: 0.75; }

/* ── Stage 02 ── */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; margin-bottom: 3rem; }
.col-title { font-size: 1.2rem; font-weight: 700; color: var(--green); margin-bottom: 1.25rem; }
.how-report {
  background: var(--off-white); border-radius: var(--radius);
  padding: 2rem; border: 1px solid var(--border);
}
.report-steps { list-style: none; counter-reset: steps; }
.report-steps li {
  counter-increment: steps; display: flex; gap: 1rem;
  align-items: flex-start; padding: 0.85rem 0;
  border-bottom: 1px solid var(--border); font-size: 0.93rem; color: var(--text-muted);
}
.report-steps li:last-child { border-bottom: none; }
.report-steps li::before {
  content: counter(steps); min-width: 28px; height: 28px;
  background: var(--green-mid); color: #fff;
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  font-size: 0.78rem; font-weight: 700; flex-shrink: 0;
}
.report-steps a { color: var(--blue); font-weight: 500; }
.progress-visual {
  background: var(--off-white); border-radius: var(--radius);
  padding: 2rem; border: 1px solid var(--border);
  display: flex; flex-direction: column;
}
.journey-path { display: flex; flex-direction: column; gap: 0; flex: 1; justify-content: center; }
.jp-step { display: flex; align-items: center; gap: 1rem; }
.jp-dot {
  width: 16px; height: 16px; border-radius: 50%;
  background: #ddd; border: 2px solid #ccc; flex-shrink: 0;
  transition: background var(--transition);
}
.jp-step.active .jp-dot { background: var(--green-mid); border-color: var(--green-mid); box-shadow: 0 0 0 4px rgba(46,125,50,0.2); }
.jp-step.gold .jp-dot { background: var(--gold); border-color: var(--gold-dark); box-shadow: 0 0 0 4px rgba(255,215,0,0.25); }
.jp-step span { font-size: 0.93rem; font-weight: 600; color: var(--text); }
.jp-step.gold span { color: var(--gold-dark); font-weight: 800; }
.jp-line { width: 2px; height: 28px; background: linear-gradient(to bottom, var(--green-mid), #ddd); margin-left: 7px; }

.milestone-title { font-size: 1.4rem; font-weight: 700; color: var(--text); margin-bottom: 1.5rem; }
.milestone-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
}
.ms-card {
  background: #fff; border-radius: var(--radius);
  padding: 1.5rem; border: 1px solid var(--border);
  border-left: 4px solid var(--green-mid);
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}
.ms-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.ms-card.ms-gold { border-left-color: var(--gold); background: #fffde7; }
.ms-homes { font-size: 1.05rem; font-weight: 800; color: var(--green); margin-bottom: 0.5rem; }
.ms-gold .ms-homes { color: #b8860b; }
.ms-award { font-size: 0.85rem; color: var(--text-muted); line-height: 1.5; }

/* ── Stage 03 ── */
.stage3-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem; margin-bottom: 3rem;
}
.s3-card {
  background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius); padding: 2rem;
  transition: background var(--transition), transform var(--transition);
}
.s3-card:hover { background: rgba(255,255,255,0.07); transform: translateY(-4px); }
.s3-icon {
  width: 52px; height: 52px; background: rgba(67,160,71,0.15);
  border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center;
  margin-bottom: 1.25rem;
}
.s3-icon svg { width: 26px; height: 26px; color: var(--green-light); }
.s3-card h3 { color: #fff; font-size: 1.05rem; font-weight: 700; margin-bottom: 0.5rem; }
.s3-card p { color: rgba(255,255,255,0.6); font-size: 0.9rem; line-height: 1.65; }
.light-link { color: var(--gold); }

/* Award Showcase */
.award-showcase {
  display: flex; gap: 2.5rem; align-items: center;
  background: linear-gradient(135deg, rgba(255,215,0,0.08), rgba(27,94,32,0.15));
  border: 1px solid rgba(255,215,0,0.2);
  border-radius: var(--radius); padding: 2.5rem;
}
.award-left { text-align: center; flex-shrink: 0; }
.award-trophy { font-size: 4rem; line-height: 1; margin-bottom: 0.75rem; }
.award-badge-text {
  font-size: 0.75rem; font-weight: 700; color: var(--gold);
  text-transform: uppercase; letter-spacing: 0.08em;
  max-width: 120px; line-height: 1.4;
}
.award-right h3 { color: var(--gold); font-size: 1.4rem; font-weight: 800; margin-bottom: 1.25rem; }
.award-detail { display: flex; gap: 1rem; margin-bottom: 0.75rem; align-items: flex-start; }
.award-label {
  font-size: 0.78rem; font-weight: 700; color: rgba(255,255,255,0.4);
  text-transform: uppercase; letter-spacing: 0.06em;
  min-width: 90px; padding-top: 0.1rem;
}
.award-detail span:last-child { color: rgba(255,255,255,0.85); font-size: 0.93rem; line-height: 1.5; }
.award-detail em { color: rgba(255,255,255,0.5); font-style: italic; font-size: 0.85rem; }
.award-chips { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1rem; }
.chip.dark { background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.12); }

/* ── Impact ── */
.impact-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1.25rem; margin-bottom: 2.5rem;
}
.impact-card {
  background: #fff; border-radius: var(--radius);
  padding: 1.75rem 1rem; text-align: center;
  border: 1px solid var(--border); box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
  position: relative; overflow: hidden;
}
.impact-card::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--green-mid), var(--blue));
}
.impact-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.impact-card.ic-highlight { background: linear-gradient(135deg, var(--green), var(--green-mid)); }
.impact-card.ic-highlight .ic-num { color: var(--gold); }
.impact-card.ic-highlight .ic-label { color: rgba(255,255,255,0.8); }
.ic-num {
  display: block; font-size: 2rem; font-weight: 900;
  color: var(--green); line-height: 1; margin-bottom: 0.4rem;
  font-family: 'Playfair Display', serif;
}
.ic-label { font-size: 0.8rem; color: var(--text-muted); font-weight: 500; line-height: 1.4; }
.fb-links { display: flex; flex-wrap: wrap; gap: 1rem; justify-content: center; }
.fb-btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.7rem 1.5rem; border-radius: 50px;
  border: 1.5px solid var(--border); color: var(--text);
  font-weight: 600; font-size: 0.9rem;
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}
.fb-btn:hover { background: var(--green); border-color: var(--green); color: #fff; }

/* ── Leadership ── */
.leader-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem; margin-bottom: 2rem;
}
.leader-card {
  background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius); padding: 2rem; text-align: center;
  transition: background var(--transition), transform var(--transition);
}
.leader-card:hover { background: rgba(255,255,255,0.07); transform: translateY(-4px); }
.leader-avatar {
  width: 64px; height: 64px; border-radius: 50%;
  background: linear-gradient(135deg, var(--green-mid), var(--blue));
  color: #fff; font-size: 1.2rem; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 1rem;
}
.leader-card h3 { color: #fff; font-size: 1rem; font-weight: 700; margin-bottom: 0.3rem; }
.leader-role {
  display: inline-block; font-size: 0.75rem; font-weight: 600;
  color: var(--gold); text-transform: uppercase; letter-spacing: 0.06em;
  margin-bottom: 0.4rem;
}
.leader-card p { color: rgba(255,255,255,0.5); font-size: 0.85rem; }
.contact-bar {
  display: flex; align-items: center; gap: 0.75rem; justify-content: center;
  background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius); padding: 1rem 2rem;
  color: rgba(255,255,255,0.7); font-size: 0.95rem; font-weight: 500;
  margin-bottom: 2.5rem;
}
.contact-bar svg { color: var(--green-light); }
.contact-sep { color: rgba(255,255,255,0.2); }
.president-quote {
  background: rgba(255,215,0,0.05); border-left: 4px solid var(--gold);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 2rem 2.5rem;
}
.quote-mark { font-size: 4rem; color: var(--gold); opacity: 0.4; line-height: 0.5; margin-bottom: 1rem; font-family: Georgia, serif; }
.president-quote p { font-size: 1.05rem; font-style: italic; color: rgba(255,255,255,0.8); line-height: 1.75; margin-bottom: 1rem; }
.president-quote cite { font-size: 0.9rem; font-weight: 700; color: var(--gold); font-style: normal; }

/* ── Footer ── */
.footer { background: #080d10; }
.footer-top { padding: 4rem 1.5rem; border-bottom: 1px solid rgba(255,255,255,0.06); }
.footer-top-inner {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem; align-items: start;
}
.footer-logo { height: 48px; width: auto; object-fit: contain; filter: brightness(0) invert(1); margin-bottom: 1rem; }
.we4green { font-size: 1.1rem; font-weight: 800; color: var(--gold); margin-bottom: 0.5rem; }
.footer-tagline { font-size: 0.85rem; color: rgba(255,255,255,0.4); line-height: 1.6; }
.footer-links-col h4 { color: rgba(255,255,255,0.9); font-size: 0.85rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 1rem; }
.footer-links-col a { display: block; color: rgba(255,255,255,0.45); font-size: 0.88rem; margin-bottom: 0.6rem; transition: color var(--transition); }
.footer-links-col a:hover { color: var(--gold); }
.footer-bottom { padding: 1.25rem 1.5rem; }
.footer-bottom-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 1rem; }
.footer-bottom p { font-size: 0.8rem; color: rgba(255,255,255,0.25); }
.footer-chips { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.chip-sm {
  font-size: 0.72rem; color: rgba(255,255,255,0.3);
  border: 1px solid rgba(255,255,255,0.1);
  padding: 0.2rem 0.6rem; border-radius: 50px;
}

/* ── Back to Top ── */
.back-top {
  position: fixed; bottom: 2rem; right: 2rem; z-index: 500;
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--green-mid); color: #fff; border: none; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 16px rgba(0,0,0,0.3);
  opacity: 0; transform: translateY(10px);
  transition: opacity var(--transition), transform var(--transition), background var(--transition);
  pointer-events: none;
}
.back-top.visible { opacity: 1; transform: translateY(0); pointer-events: auto; }
.back-top:hover { background: var(--green-light); }

/* ── Reveal Animation ── */
.reveal {
  opacity: 0; transform: translateY(30px);
  transition: opacity 0.65s cubic-bezier(0.4,0,0.2,1), transform 0.65s cubic-bezier(0.4,0,0.2,1);
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ── Responsive ── */
@media (max-width: 1024px) {
  .footer-top-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .nav-menu {
    display: none; flex-direction: column; position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(13,17,23,0.98); backdrop-filter: blur(20px);
    padding: 6rem 2rem 2rem; gap: 0.5rem; z-index: 999;
    overflow-y: auto;
  }
  .nav-menu.open { display: flex; }
  .nav-menu a { font-size: 1.1rem; padding: 0.75rem 1rem; }
  .hamburger { display: flex; z-index: 1001; }
  .two-col { grid-template-columns: 1fr; }
  .award-showcase { flex-direction: column; text-align: center; }
  .award-detail { flex-direction: column; gap: 0.25rem; }
  .award-label { min-width: auto; }
  .footer-top-inner { grid-template-columns: 1fr; gap: 2rem; }
  .footer-bottom-inner { flex-direction: column; text-align: center; }
  .hero-stats { flex-direction: column; }
  .hstat-divider { width: 80%; height: 1px; }
}
@media (max-width: 480px) {
  .section { padding: 4rem 1rem; }
  .steps-grid { grid-template-columns: 1fr; }
  .milestone-grid { grid-template-columns: 1fr 1fr; }
}