/* ============================================
   TECHSTRONG LEARNING — Sales Collateral
   Design: Bright, clean, agency-quality
   Fonts: Instrument Serif + General Sans
   Palette: White/light + cyan-teal + gold accents
   ============================================ */

:root {
  --font-display: 'Instrument Serif', Georgia, serif;
  --font-body: 'General Sans', 'Helvetica Neue', sans-serif;
  
  --color-bg: #ffffff;
  --color-surface: #f8f9fb;
  --color-surface-2: #f0f2f5;
  --color-text: #1a1d23;
  --color-text-muted: #5a5f6b;
  --color-text-faint: #9ca0a8;
  --color-gold: #D4A843;
  --color-gold-bright: #e8bc4e;
  --color-teal: #2BA8B3;
  --color-teal-dark: #1e8a93;
  --color-navy: #0d1b2a;
  --color-navy-light: #1b2d45;
  --color-border: #e2e5ea;
  
  --shadow-sm: 0 1px 3px rgba(13,27,42,0.06);
  --shadow-md: 0 4px 16px rgba(13,27,42,0.08);
  --shadow-lg: 0 12px 40px rgba(13,27,42,0.12);
  
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  
  --transition: 280ms cubic-bezier(0.16, 1, 0.3, 1);
  --content-wide: 1200px;
}

/* ---- RESET ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
body { font-family: var(--font-body); font-size: 16px; line-height: 1.6; color: var(--color-text); background: var(--color-bg); }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; background: none; border: none; font: inherit; }

.container { max-width: var(--content-wide); margin: 0 auto; padding: 0 24px; }
.gold { color: var(--color-gold); }

/* ---- REVEAL ANIMATIONS ---- */
.reveal { opacity: 0; transform: translateY(32px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ---- NAV ---- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(255,255,255,0.92); backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition);
}
.nav.scrolled { box-shadow: var(--shadow-sm); }
.nav-inner {
  max-width: var(--content-wide); margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between; height: 64px;
}
.nav-brand { display: flex; align-items: center; gap: 12px; }
.nav-logo { height: 28px; width: 220px; }
.nav-divider { width: 2px; height: 24px; background: var(--color-gold); border-radius: 1px; }
.nav-label { font-family: var(--font-display); font-size: 22px; font-style: italic; color: var(--color-teal); }
.nav-cta {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 24px; border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--color-gold), var(--color-gold-bright));
  color: #fff; font-weight: 600; font-size: 14px; letter-spacing: 0.02em;
  transition: transform var(--transition), box-shadow var(--transition);
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 4px 16px rgba(212,168,67,0.35); }

/* ---- HERO ---- */
.hero {
  position: relative; min-height: 100vh; display: flex; align-items: center;
  justify-content: center; text-align: center; padding: 120px 24px 80px;
  background: linear-gradient(165deg, #ffffff 0%, #f0f5f7 40%, #e8f4f6 100%);
  overflow: hidden;
}
#hero-canvas { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.hero-content { position: relative; z-index: 2; max-width: 900px; }
.hero-eyebrow {
  display: inline-block; font-size: 13px; font-weight: 600; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--color-teal); margin-bottom: 20px;
  padding: 6px 16px; border: 1px solid rgba(43,168,179,0.3); border-radius: var(--radius-lg);
}
.hero-title {
  font-family: var(--font-display); font-size: clamp(2.5rem, 1rem + 5vw, 4.5rem);
  line-height: 1.1; color: var(--color-navy); margin-bottom: 24px;
}
.hero-subtitle {
  font-size: clamp(1rem, 0.9rem + 0.5vw, 1.2rem); color: var(--color-text-muted);
  max-width: 720px; margin: 0 auto 48px; line-height: 1.7;
}
.hero-stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
  margin-bottom: 48px;
}
.hero-stat {
  display: flex; flex-direction: column; align-items: center; gap: 4px;
}
.hero-stat-number {
  font-family: var(--font-display); font-size: clamp(2rem, 1.5rem + 2vw, 3rem);
  color: var(--color-navy); line-height: 1;
}
.hero-stat-label { font-size: 13px; color: var(--color-text-muted); font-weight: 500; }
.hero-cta {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 16px 40px; border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--color-teal), var(--color-teal-dark));
  color: #fff; font-weight: 600; font-size: 16px;
  transition: transform var(--transition), box-shadow var(--transition);
}
.hero-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(43,168,179,0.3); }

/* ---- SECTION TITLES ---- */
.section-eyebrow {
  font-size: 13px; font-weight: 600; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--color-teal); margin-bottom: 12px;
}
.section-title {
  font-family: var(--font-display); font-size: clamp(2rem, 1.2rem + 3vw, 3.2rem);
  line-height: 1.15; color: var(--color-navy); margin-bottom: 16px;
}
.section-subtitle {
  font-size: 1.05rem; color: var(--color-text-muted); max-width: 680px; line-height: 1.7;
}

/* ---- PILLARS ---- */
.pillars { padding: 100px 0; background: var(--color-bg); text-align: center; }
.pillars-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; margin-top: 56px; }
.pillar-card {
  padding: 48px 32px; border-radius: var(--radius-xl);
  background: var(--color-surface); border: 1px solid var(--color-border);
  transition: transform var(--transition), box-shadow var(--transition);
}
.pillar-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.pillar-icon { margin-bottom: 24px; }
.pillar-title { font-family: var(--font-display); font-size: 1.5rem; margin-bottom: 12px; color: var(--color-navy); }
.pillar-text { font-size: 0.95rem; color: var(--color-text-muted); line-height: 1.7; }

/* ---- TEAM NOT TOOL ---- */
.team-section { padding: 100px 0; background: #fff; }
.team-split {
  display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center;
}
.team-lead {
  font-size: 1.25rem; line-height: 1.6; color: var(--color-navy); font-weight: 500;
  margin-bottom: 20px;
}
.team-body {
  font-size: 0.95rem; color: var(--color-text-muted); line-height: 1.75; margin-bottom: 16px;
}
.team-compare {
  display: grid; grid-template-columns: 1fr 1fr; gap: 0; border-radius: var(--radius-lg);
  overflow: hidden; box-shadow: 0 4px 24px rgba(0,0,0,0.08);
}
.compare-col {
  padding: 32px 28px;
}
.compare-them {
  background: var(--color-surface);
}
.compare-us {
  background: var(--color-navy); color: #fff;
}
.compare-heading {
  font-family: var(--font-display); font-size: 1.15rem; margin-bottom: 20px;
  padding-bottom: 12px; border-bottom: 2px solid rgba(0,0,0,0.08);
}
.compare-us .compare-heading {
  border-bottom-color: rgba(255,255,255,0.15);
}
.compare-list {
  list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 14px;
}
.compare-list li {
  display: flex; align-items: flex-start; gap: 10px; font-size: 0.9rem; line-height: 1.5;
}
.compare-x {
  flex-shrink: 0; width: 22px; height: 22px; border-radius: 50%;
  background: rgba(200,50,50,0.1); color: #c83232;
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; font-weight: 700;
}
.compare-check {
  flex-shrink: 0; width: 22px; height: 22px; border-radius: 50%;
  background: rgba(43,168,179,0.2); color: var(--color-teal);
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 700;
}
.compare-them .compare-list li { color: var(--color-text-muted); }
.compare-us .compare-list li { color: rgba(255,255,255,0.85); }

@media (max-width: 768px) {
  .team-split { grid-template-columns: 1fr; gap: 40px; }
}

/* ---- FORMATS ---- */
.formats { padding: 100px 0; background: var(--color-surface); }
.formats .section-subtitle { margin-bottom: 56px; }
.formats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.format-card {
  position: relative; padding: 36px 28px; border-radius: var(--radius-xl);
  background: #fff; border: 1px solid var(--color-border);
  transition: transform var(--transition), box-shadow var(--transition);
}
.format-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.format-featured { border: 2px solid var(--color-teal); }
.format-badge {
  position: absolute; top: 16px; right: 16px;
  font-size: 11px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase;
  padding: 4px 12px; border-radius: var(--radius-lg);
  background: var(--color-teal); color: #fff;
}
.format-badge-premium { background: var(--color-gold); }
.format-icon-wrap {
  width: 64px; height: 64px; border-radius: 16px;
  background: var(--color-surface); display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px; color: var(--color-teal);
}
.format-featured .format-icon-wrap { background: rgba(43,168,179,0.08); }
.format-title { font-family: var(--font-display); font-size: 1.3rem; margin-bottom: 10px; color: var(--color-navy); line-height: 1.25; }
.format-desc { font-size: 0.9rem; color: var(--color-text-muted); margin-bottom: 20px; line-height: 1.6; }
.format-features { list-style: none; }
.format-features li {
  position: relative; padding-left: 20px; font-size: 0.88rem; color: var(--color-text-muted);
  margin-bottom: 8px; line-height: 1.5;
}
.format-features li::before {
  content: ''; position: absolute; left: 0; top: 8px;
  width: 8px; height: 8px; border-radius: 50%; background: var(--color-teal);
}
.format-features li strong { color: var(--color-navy); }

/* ---- TIMELINE ---- */
.timeline-section { padding: 100px 0; background: var(--color-bg); text-align: center; }
.timeline { position: relative; max-width: 720px; margin: 56px auto 0; text-align: left; }
.timeline-line {
  position: absolute; left: 24px; top: 0; bottom: 0; width: 2px;
  background: linear-gradient(180deg, var(--color-teal), var(--color-gold));
}
.timeline-item {
  display: flex; gap: 24px; margin-bottom: 40px; position: relative;
}
.timeline-number {
  flex-shrink: 0; width: 48px; height: 48px; border-radius: 50%;
  background: linear-gradient(135deg, var(--color-teal), var(--color-teal-dark));
  color: #fff; font-weight: 700; font-size: 18px;
  display: flex; align-items: center; justify-content: center;
  position: relative; z-index: 2;
}
.timeline-item:nth-child(even) .timeline-number {
  background: linear-gradient(135deg, var(--color-gold), var(--color-gold-bright));
}
.timeline-content { padding-top: 4px; }
.timeline-content h4 { font-family: var(--font-display); font-size: 1.25rem; color: var(--color-navy); margin-bottom: 4px; }
.timeline-content p { font-size: 0.9rem; color: var(--color-text-muted); line-height: 1.6; }

/* ---- AUDIENCE ---- */
.audience { padding: 100px 0; background: var(--color-surface); }
.audience-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; margin-top: 56px; }
.audience-stats-col { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.audience-stat-card {
  padding: 28px 24px; border-radius: var(--radius-lg); background: #fff;
  border: 1px solid var(--color-border); text-align: center;
  transition: transform var(--transition);
}
.audience-stat-card:hover { transform: translateY(-2px); }
.audience-stat-big {
  font-family: var(--font-display); font-size: clamp(1.8rem, 1.5rem + 1vw, 2.4rem);
  color: var(--color-teal); line-height: 1.1; margin-bottom: 4px;
}
.audience-stat-label { font-size: 0.85rem; color: var(--color-text-muted); font-weight: 500; }
.audience-chart-col { display: flex; flex-direction: column; gap: 24px; }
.chart-card {
  padding: 28px; border-radius: var(--radius-lg); background: #fff;
  border: 1px solid var(--color-border);
}
.chart-title { font-family: var(--font-display); font-size: 1.1rem; color: var(--color-navy); margin-bottom: 20px; }
#roleChart { max-width: 220px; margin: 0 auto; }
.chart-legend { display: flex; gap: 20px; justify-content: center; margin-top: 16px; }
.chart-legend-item { display: flex; align-items: center; gap: 6px; font-size: 0.85rem; color: var(--color-text-muted); }
.chart-legend-dot { width: 10px; height: 10px; border-radius: 50%; }

/* Geo bars */
.geo-bars { display: flex; flex-direction: column; gap: 14px; }
.geo-bar-row { display: flex; align-items: center; gap: 12px; }
.geo-label { font-size: 0.85rem; color: var(--color-text-muted); min-width: 120px; text-align: right; font-weight: 500; }
.geo-bar-track { flex: 1; height: 28px; background: var(--color-surface); border-radius: var(--radius-sm); overflow: hidden; position: relative; }
.geo-bar-fill {
  height: 100%; width: 0; border-radius: var(--radius-sm);
  background: linear-gradient(90deg, var(--color-teal), var(--color-teal-dark));
  transition: width 1.2s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex; align-items: center; justify-content: flex-end; padding-right: 10px;
  font-size: 0.8rem; font-weight: 600; color: #fff;
}
.geo-bar-fill.animated { width: var(--w); }
.geo-bar-fill::after { content: attr(data-val); }

/* ---- VIDEO SHOWCASE ---- */
.showcase { padding: 100px 0; background: var(--color-bg); }
.showcase .section-subtitle { margin-bottom: 48px; }
.showcase-scroll {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
}
.showcase-card {
  border-radius: var(--radius-lg); overflow: hidden;
  background: var(--color-surface); border: 1px solid var(--color-border);
  transition: transform var(--transition), box-shadow var(--transition);
}
.showcase-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.showcase-thumb-link {
  display: block; position: relative; aspect-ratio: 16/9; overflow: hidden;
}
.showcase-thumb { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.showcase-card:hover .showcase-thumb { transform: scale(1.05); }
.showcase-play {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  font-size: 32px; color: #fff; background: rgba(0,0,0,0.25);
  transition: background var(--transition);
}
.showcase-card:hover .showcase-play { background: rgba(43,168,179,0.6); }
.showcase-tag {
  display: inline-block; margin: 14px 14px 8px; padding: 3px 10px;
  font-size: 11px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase;
  border-radius: var(--radius-sm); background: rgba(43,168,179,0.1); color: var(--color-teal);
}
.tag-security { background: rgba(212,168,67,0.1); color: var(--color-gold); }
.tag-workshop { background: rgba(13,27,42,0.06); color: var(--color-navy); }
.tag-summit { background: rgba(43,168,179,0.1); color: var(--color-teal-dark); }
.showcase-title { padding: 0 14px 18px; font-size: 0.9rem; font-weight: 600; color: var(--color-navy); line-height: 1.4; }

/* ---- EVENTS ---- */
.events { padding: 100px 0; background: var(--color-navy); color: #fff; }
.events .section-eyebrow { color: var(--color-gold); }
.events .section-title { color: #fff; }
.events .section-subtitle { color: rgba(255,255,255,0.65); margin-bottom: 56px; }
.events-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.event-card {
  padding: 32px 24px; border-radius: var(--radius-lg);
  background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.1);
  transition: transform var(--transition), background var(--transition);
}
.event-card:hover { transform: translateY(-4px); background: rgba(255,255,255,0.1); }
.event-date { font-size: 12px; font-weight: 600; color: var(--color-gold); margin-bottom: 8px; letter-spacing: 0.04em; }
.event-name { font-family: var(--font-display); font-size: 1.3rem; margin-bottom: 10px; }
.event-desc { font-size: 0.88rem; color: rgba(255,255,255,0.6); line-height: 1.6; margin-bottom: 16px; }
.event-link { font-size: 0.88rem; font-weight: 600; color: var(--color-teal); transition: color var(--transition); }
.event-link:hover { color: var(--color-gold); }

/* ---- CALENDAR ---- */
.calendar-section { padding: 100px 0; background: var(--color-surface); text-align: center; }
.calendar-section .section-subtitle { margin: 0 auto 56px; }
.calendar-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.cal-card {
  padding: 24px 20px; border-radius: var(--radius-lg); background: #fff;
  border: 1px solid var(--color-border); text-align: left;
  transition: transform var(--transition), box-shadow var(--transition);
}
.cal-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.cal-month {
  font-size: 13px; font-weight: 700; color: var(--color-teal);
  margin-bottom: 8px; letter-spacing: 0.02em;
}
.cal-topic { font-size: 0.9rem; color: var(--color-navy); font-weight: 500; line-height: 1.45; }

/* ---- DISTRIBUTION ---- */
.distribution { padding: 100px 0; background: var(--color-bg); text-align: center; }
.dist-flow { display: flex; align-items: flex-start; justify-content: center; gap: 16px; margin-top: 56px; flex-wrap: wrap; }
.dist-step { flex: 1; min-width: 180px; max-width: 240px; text-align: center; }
.dist-icon { margin: 0 auto 16px; width: 72px; height: 72px; border-radius: 20px; background: var(--color-surface); display: flex; align-items: center; justify-content: center; }
.dist-step h4 { font-family: var(--font-display); font-size: 1.15rem; color: var(--color-navy); margin-bottom: 8px; }
.dist-step p { font-size: 0.85rem; color: var(--color-text-muted); line-height: 1.6; }
.dist-arrow { font-size: 24px; color: var(--color-teal); margin-top: 32px; font-weight: 300; }

.properties-bar {
  margin-top: 64px; padding: 32px; border-radius: var(--radius-xl);
  background: var(--color-surface); border: 1px solid var(--color-border);
}
.properties-title { font-family: var(--font-display); font-size: 1.1rem; color: var(--color-navy); margin-bottom: 20px; }
.properties-logos {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 12px;
}
.prop-logo {
  padding: 8px 20px; border-radius: var(--radius-lg); font-size: 0.85rem; font-weight: 600;
  color: var(--color-text-muted); background: #fff; border: 1px solid var(--color-border);
}

/* ---- HOSTS ---- */
.hosts { padding: 100px 0; background: var(--color-surface); text-align: center; }
.hosts-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 40px; max-width: 800px; margin: 56px auto 0; }
.host-card {
  padding: 40px 32px; border-radius: var(--radius-xl);
  background: #fff; border: 1px solid var(--color-border);
  text-align: center;
  transition: transform var(--transition), box-shadow var(--transition);
}
.host-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.host-img-wrap {
  width: 120px; height: 120px; border-radius: 50%; margin: 0 auto 20px;
  border: 3px solid var(--color-gold); overflow: hidden;
}
.host-img { width: 100%; height: 100%; object-fit: cover; }
.host-name { font-family: var(--font-display); font-size: 1.35rem; color: var(--color-navy); margin-bottom: 4px; }
.host-role { font-size: 0.85rem; color: var(--color-teal); font-weight: 600; margin-bottom: 12px; }
.host-bio { font-size: 0.9rem; color: var(--color-text-muted); line-height: 1.6; }

/* ---- CTA ---- */
.cta-section {
  padding: 120px 24px; text-align: center;
  background: linear-gradient(165deg, var(--color-navy) 0%, var(--color-navy-light) 100%);
  color: #fff;
}
.cta-logo { height: 36px; width: 220px; margin: 0 auto 32px; display: block; }
.cta-title {
  font-family: var(--font-display); font-size: clamp(2rem, 1rem + 3vw, 3rem);
  line-height: 1.15; margin-bottom: 16px;
}
.cta-text { font-size: 1.05rem; color: rgba(255,255,255,0.65); max-width: 560px; margin: 0 auto 40px; line-height: 1.7; }
.cta-button {
  display: inline-flex; padding: 18px 48px; border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--color-gold), var(--color-gold-bright));
  color: #fff; font-weight: 700; font-size: 17px; letter-spacing: 0.02em;
  transition: transform var(--transition), box-shadow var(--transition);
}
.cta-button:hover { transform: translateY(-2px); box-shadow: 0 8px 32px rgba(212,168,67,0.4); }
.cta-sub { margin-top: 16px; font-size: 0.85rem; color: rgba(255,255,255,0.45); }
.cta-sub a { color: var(--color-gold); }

/* ---- FOOTER ---- */
.footer { padding: 40px 24px; background: var(--color-bg); border-top: 1px solid var(--color-border); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; }
.footer-brand { display: flex; align-items: center; gap: 12px; }
.footer-logo { height: 24px; width: 200px; }
.footer-futurum { font-size: 0.75rem; color: var(--color-text-faint); font-weight: 500; text-transform: uppercase; letter-spacing: 0.06em; }
.footer-copy { font-size: 0.8rem; color: var(--color-text-faint); }

/* ---- RESPONSIVE ---- */
@media (max-width: 1024px) {
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .pillars-grid { grid-template-columns: 1fr; max-width: 480px; margin-left: auto; margin-right: auto; }
  .formats-grid { grid-template-columns: repeat(2, 1fr); }
  .audience-grid { grid-template-columns: 1fr; }
  .showcase-scroll { grid-template-columns: repeat(2, 1fr); }
  .events-grid { grid-template-columns: repeat(2, 1fr); }
  .calendar-grid { grid-template-columns: repeat(2, 1fr); }
  .dist-arrow { display: none; }
  .dist-flow { gap: 32px; }
}

@media (max-width: 640px) {
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .formats-grid { grid-template-columns: 1fr; }
  .showcase-scroll { grid-template-columns: 1fr; }
  .events-grid { grid-template-columns: 1fr; }
  .calendar-grid { grid-template-columns: 1fr; }
  .hosts-grid { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; gap: 12px; text-align: center; }
  .nav-cta { padding: 8px 16px; font-size: 13px; }
}