/* ═══════════════════════════════════════════════════════════
   CAP-GEO 2026 – Main Stylesheet
   Department of Earth & Environmental Sciences, IISER Mohali
   ═══════════════════════════════════════════════════════════ */

/* ── Variables ─────────────────────────────────────────── */
:root {
  --navy:        #1e2d40;  /* deep geological slate */
  --navy-mid:    #263648;
  --navy-light:  #30465e;
  --teal:        #2d7060;  /* muted terrain green */
  --teal-light:  #3a8872;
  --gold:        #9b7020;  /* earthy ochre */
  --gold-light:  #c49030;
  --white:       #ffffff;
  --off-white:   #f5f0e8;  /* warm parchment */
  --light-grey:  #e8ddd0;  /* warm earth */
  --mid-grey:    #8a8278;
  --dark-grey:   #4a4238;
  --text:        #1a2030;
  --text-light:  #58524a;

  --font-body:   'Inter', system-ui, sans-serif;
  --font-serif:  'EB Garamond', 'Merriweather', Georgia, serif;

  --radius-sm:   4px;
  --radius:      8px;
  --radius-lg:   14px;
  --radius-xl:   20px;

  --shadow-sm:   0 2px 8px rgba(30,45,64,.08);
  --shadow:      0 4px 24px rgba(30,45,64,.12);
  --shadow-lg:   0 8px 48px rgba(30,45,64,.16);
  --shadow-xl:   0 16px 64px rgba(30,45,64,.20);

  --trans:       all .25s cubic-bezier(.4,0,.2,1);
  --section-gap: 100px;
}

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

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

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

img { max-width: 100%; height: auto; display: block; }

a { color: inherit; text-decoration: none; }

ul { list-style: none; }

/* ── Utilities ──────────────────────────────────────────── */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: var(--section-gap) 0;
}

.section-alt {
  background: var(--off-white);
}

.section-dark {
  background: var(--navy);
  color: var(--white);
}

/* ── Section Header ─────────────────────────────────────── */
.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-tag {
  display: inline-block;
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--teal);
  background: rgba(45,112,96,.10);
  padding: 6px 16px;
  border-radius: 3px;
  margin-bottom: 16px;
  border: 1px solid rgba(45,112,96,.18);
}

.section-tag.light {
  color: var(--teal-light);
  background: rgba(58,136,114,.15);
  border-color: rgba(58,136,114,.25);
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.9rem, 3vw, 2.8rem);
  font-weight: 600;
  color: var(--navy);
  line-height: 1.25;
  margin-bottom: 16px;
}

.section-dark .section-title {
  color: var(--white);
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-light);
  max-width: 600px;
  margin: 0 auto;
}

.section-dark .section-desc {
  color: rgba(255,255,255,.7);
}

/* ── Buttons ────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius);
  font-size: .95rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--trans);
  border: 2px solid transparent;
  text-decoration: none;
}

.btn svg { width: 18px; height: 18px; flex-shrink: 0; transition: transform .2s; }
.btn:hover svg { transform: translateX(3px); }

.btn-primary {
  background: var(--teal);
  color: var(--white);
  border-color: var(--teal);
}
.btn-primary:hover {
  background: var(--teal-light);
  border-color: var(--teal-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(45,112,96,.28);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,.5);
}
.btn-outline:hover {
  background: rgba(255,255,255,.1);
  border-color: var(--white);
}

.btn-outline-dark {
  background: transparent;
  color: var(--navy);
  border-color: var(--navy);
}
.btn-outline-dark:hover {
  background: var(--navy);
  color: var(--white);
}

.btn-lg  { padding: 15px 36px; font-size: 1.02rem; }
.btn-xl  { padding: 18px 40px; font-size: 1.08rem; }
.btn-full { width: 100%; justify-content: center; }

/* ══════════════════════════════════════════════════════════
   NAVBAR
   ══════════════════════════════════════════════════════════ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  transition: var(--trans);
  padding: 16px 0;
}

.navbar.scrolled {
  background: rgba(18,28,42,.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 4px 32px rgba(0,0,0,.25);
  padding: 10px 0;
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.nav-logo {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -.02em;
  color: var(--white);
  display: flex;
  align-items: baseline;
  gap: 2px;
  flex-shrink: 0;
}

.logo-cap  { color: var(--white); }
.logo-dash { color: var(--gold); }
.logo-geo  { color: var(--teal-light); }
.logo-year {
  font-size: .75rem;
  font-weight: 600;
  color: var(--gold-light);
  letter-spacing: .05em;
  margin-left: 6px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}

.nav-links a {
  color: rgba(255,255,255,.8);
  font-size: .88rem;
  font-weight: 500;
  padding: 7px 12px;
  border-radius: var(--radius-sm);
  transition: var(--trans);
}

.nav-links a:hover {
  color: var(--white);
  background: rgba(255,255,255,.1);
}

.nav-links a.active {
  color: var(--teal-light);
}

.nav-cta {
  background: var(--teal) !important;
  color: var(--white) !important;
  padding: 8px 20px !important;
  border-radius: 4px !important;
  font-weight: 600 !important;
  margin-left: 8px;
}

.nav-cta:hover {
  background: var(--teal-light) !important;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(45,112,96,.32);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--trans);
}

/* ══════════════════════════════════════════════════════════
   HERO
   ══════════════════════════════════════════════════════════ */
.hero {
  min-height: 100vh;
  background: linear-gradient(160deg, #0c1820 0%, #152838 40%, #1a3040 65%, #102030 100%);
  position: relative;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(45,112,96,.10) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(155,112,32,.07) 0%, transparent 50%),
    radial-gradient(ellipse at 60% 80%, rgba(45,112,96,.06) 0%, transparent 50%);
  pointer-events: none;
}

.hero-grid-bg {
  position: absolute;
  inset: 0;
  /* Topographic contour-line pattern */
  background-image:
    repeating-radial-gradient(ellipse 200px 130px at 28% 38%,
      transparent 0, transparent 38px,
      rgba(255,255,255,.018) 38px, rgba(255,255,255,.018) 39px,
      transparent 39px, transparent 76px,
      rgba(255,255,255,.013) 76px, rgba(255,255,255,.013) 77px,
      transparent 77px, transparent 115px,
      rgba(255,255,255,.009) 115px, rgba(255,255,255,.009) 116px),
    repeating-radial-gradient(ellipse 180px 110px at 74% 65%,
      transparent 0, transparent 28px,
      rgba(255,255,255,.014) 28px, rgba(255,255,255,.014) 29px,
      transparent 29px, transparent 58px,
      rgba(255,255,255,.010) 58px, rgba(255,255,255,.010) 59px,
      transparent 59px, transparent 88px,
      rgba(255,255,255,.007) 88px, rgba(255,255,255,.007) 89px);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  padding-top: 100px;
  padding-bottom: 60px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .82rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: rgba(255,255,255,.8);
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.20);
  padding: 8px 20px;
  border-radius: 4px;
  margin-bottom: 32px;
}

.badge-dot {
  width: 8px;
  height: 8px;
  background: #c49030;
  border-radius: 50%;
  box-shadow: 0 0 0 3px rgba(196,144,48,.3);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: .5; }
}

.hero-title {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 32px;
}

.hero-cap {
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 800;
  letter-spacing: -.03em;
  color: var(--white);
  line-height: 1;
  /* warm gradient — geological map paper tone */
  background: linear-gradient(140deg, #ffffff 0%, #f0e4c8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-family: var(--font-serif);
  font-size: clamp(1.2rem, 2.5vw, 1.65rem);
  font-weight: 400;
  color: rgba(255,255,255,.82);
  line-height: 1.5;
  max-width: 700px;
  letter-spacing: .01em;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-bottom: 20px;
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .95rem;
  font-weight: 500;
  color: rgba(255,255,255,.85);
}

.meta-item svg { width: 18px; height: 18px; color: var(--teal-light); flex-shrink: 0; }

.hero-deadline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .9rem;
  color: var(--gold-light);
  background: rgba(155,112,32,.12);
  border: 1px solid rgba(155,112,32,.28);
  padding: 8px 18px;
  border-radius: 4px;
  margin-bottom: 36px;
}

.hero-deadline svg { width: 16px; height: 16px; color: var(--gold); }

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 48px;
}

.hero-instruments {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.instrument-chip {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: .82rem;
  font-weight: 600;
  letter-spacing: .04em;
  color: rgba(255,255,255,.75);
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  padding: 6px 14px;
  border-radius: 3px;
  transition: var(--trans);
}

.instrument-chip:hover {
  background: rgba(45,112,96,.22);
  border-color: var(--teal);
  color: var(--white);
}

.chip-icon { font-size: 1rem; }

.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,.4);
  font-size: .72rem;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, rgba(255,255,255,.3), transparent);
  animation: scrollAnim 2s ease-in-out infinite;
}

@keyframes scrollAnim {
  0%   { transform: scaleY(0); transform-origin: top; }
  50%  { transform: scaleY(1); transform-origin: top; }
  51%  { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ══════════════════════════════════════════════════════════
   STATS BAR
   ══════════════════════════════════════════════════════════ */
.stats-bar {
  background: var(--navy);
  padding: 32px 0;
  border-top: 1px solid rgba(255,255,255,.06);
}

.stats-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 12px 48px;
}

.stat-number {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--white);
  line-height: 1;
  letter-spacing: -.03em;
}

.stat-label {
  font-size: .8rem;
  font-weight: 500;
  color: var(--mid-grey);
  letter-spacing: .06em;
  text-transform: uppercase;
}

.stat-divider {
  width: 1px;
  height: 48px;
  background: rgba(255,255,255,.1);
}

/* ══════════════════════════════════════════════════════════
   ABOUT
   ══════════════════════════════════════════════════════════ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.about-text p {
  color: var(--text-light);
  margin-bottom: 20px;
  line-height: 1.75;
}

.about-text p.lead {
  font-size: 1.08rem;
  color: var(--text);
  font-weight: 400;
}

.about-text strong { color: var(--navy); font-weight: 700; }

.about-who {
  margin-top: 32px;
  padding: 28px;
  background: var(--light-grey);
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--teal);
}

.about-who h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 16px;
}

.who-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.who-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: .92rem;
  color: var(--dark-grey);
  font-weight: 500;
}

.who-list li svg {
  width: 18px; height: 18px;
  color: var(--teal);
  flex-shrink: 0;
  background: rgba(45,112,96,.12);
  border-radius: 50%;
  padding: 2px;
}

.about-cards {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.about-card {
  padding: 28px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--light-grey);
  transition: var(--trans);
  position: relative;
  overflow: hidden;
}

.about-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 4px;
  height: 100%;
  border-radius: 4px 0 0 4px;
}

.about-card.accent-blue::before  { background: var(--navy); }
.about-card.accent-teal::before  { background: var(--teal); }
.about-card.accent-gold::before  { background: var(--gold); }

.about-card:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow);
}

.about-card-icon {
  font-size: 1.8rem;
  margin-bottom: 12px;
}

.about-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 8px;
}

.about-card p {
  font-size: .88rem;
  color: var(--text-light);
  line-height: 1.6;
}

/* ══════════════════════════════════════════════════════════
   OBJECTIVES
   ══════════════════════════════════════════════════════════ */
.objectives-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.objective-card {
  background: var(--white);
  border: 1px solid var(--light-grey);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  position: relative;
  transition: var(--trans);
  overflow: hidden;
}

.objective-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--teal);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .35s ease;
  border-radius: 0;
}

.objective-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.objective-card:hover::after { transform: scaleX(1); }

.obj-number {
  position: absolute;
  top: 20px; right: 24px;
  font-size: 3.5rem;
  font-weight: 900;
  color: var(--light-grey);
  line-height: 1;
  letter-spacing: -.04em;
  user-select: none;
}

.obj-icon {
  font-size: 2.4rem;
  margin-bottom: 16px;
}

.objective-card h3 {
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 10px;
}

.objective-card p {
  font-size: .9rem;
  color: var(--text-light);
  line-height: 1.65;
}

/* ══════════════════════════════════════════════════════════
   SESSIONS
   ══════════════════════════════════════════════════════════ */
.sessions-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.session-card {
  background: var(--white);
  border: 1px solid var(--light-grey);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: var(--trans);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.session-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: transparent;
}

.session-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 4px;
  flex-shrink: 0;
}

.session-icon.insar  { background: rgba(30,45,64,.08); }
.session-icon.ert    { background: rgba(155,112,32,.10); }
.session-icon.gnss   { background: rgba(45,112,96,.10); }
.session-icon.tls    { background: rgba(60,90,130,.10); }
.session-icon.gpr    { background: rgba(110,70,150,.10); }
.session-icon.masw   { background: rgba(160,55,55,.10); }
.session-icon.ts     { background: rgba(155,112,32,.10); }
.session-icon.uav    { background: rgba(45,112,96,.10); }

.session-card h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy);
}

.session-card p {
  font-size: .84rem;
  color: var(--text-light);
  line-height: 1.6;
  flex: 1;
}

.session-tag {
  display: inline-block;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--teal);
  background: rgba(45,112,96,.10);
  border: 1px solid rgba(45,112,96,.18);
  padding: 3px 8px;
  border-radius: 3px;
  margin-top: 4px;
  align-self: flex-start;
}

/* ══════════════════════════════════════════════════════════
   SCHEDULE
   ══════════════════════════════════════════════════════════ */
.schedule-timeline {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  align-items: start;
  gap: 0;
}

.day-card {
  background: var(--white);
  border: 1px solid var(--light-grey);
  border-radius: var(--radius-xl);
  padding: 36px 32px;
  transition: var(--trans);
  height: 100%;
}

.day-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.day-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.day-badge {
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--white);
  background: var(--navy);
  padding: 5px 14px;
  border-radius: 100px;
}

.day-card:nth-child(1) .day-badge { background: var(--teal); }
.day-card:nth-child(5) .day-badge { background: var(--navy); }
.day-card:nth-child(9) .day-badge { background: var(--gold); color: var(--navy); }

.day-date {
  font-size: .8rem;
  font-weight: 500;
  color: var(--mid-grey);
}

.day-theme {
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--light-grey);
}

.day-activities {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-bottom: 24px;
}

.day-activities li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.activity-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 6px;
}

.activity-dot.blue  { background: var(--navy); }
.activity-dot.teal  { background: var(--teal); }
.activity-dot.gold  { background: var(--gold); }
.activity-dot.navy  { background: #2e4a60; }
.activity-dot.insar { background: #6c35a8; }

/* ── Session sub-blocks (Morning / Afternoon / Industry / Field) ── */
.session-block {
  margin-bottom: 14px;
}
.session-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .07em;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 20px;
  margin-bottom: 10px;
}
.session-label.morning   { background: rgba(45,112,96,.12);  color: var(--teal); }
.session-label.afternoon { background: rgba(30,45,64,.10);   color: var(--navy); }
.session-label.industry  { background: rgba(155,112,32,.14); color: #6a5010; margin-top: 10px; }
.session-label.field     { background: rgba(108,53,168,.12); color: #6c35a8; margin-top: 10px; }

/* Speaker org tag inline */
.speaker-org {
  font-weight: 500;
  color: var(--text-light);
  font-size: .85em;
}

/* ── Association banner in About section ── */
.assoc-banner {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 14px;
  padding: 8px 18px;
  background: rgba(45,112,96,.10);
  border: 1px solid rgba(45,112,96,.25);
  border-radius: 4px;
  font-size: .88rem;
  color: var(--text-light);
}
.assoc-banner svg {
  width: 16px;
  height: 16px;
  color: var(--teal);
  flex-shrink: 0;
}
.assoc-banner strong {
  color: var(--navy);
}

.day-activities strong {
  display: block;
  font-size: .92rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 3px;
}

.day-activities p {
  font-size: .83rem;
  color: var(--text-light);
  line-height: 1.5;
}

.day-instruments {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.day-instruments span {
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--teal);
  background: rgba(45,112,96,.10);
  border: 1px solid rgba(45,112,96,.18);
  padding: 3px 8px;
  border-radius: 3px;
}

.day-connector {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 80px 24px 0;
  gap: 0;
}

.connector-line {
  width: 2px;
  height: 30px;
  background: linear-gradient(to bottom, var(--light-grey), var(--teal));
}

.connector-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--teal);
  border: 3px solid var(--white);
  box-shadow: 0 0 0 2px var(--teal);
  flex-shrink: 0;
}

/* ══════════════════════════════════════════════════════════
   OUTCOMES
   ══════════════════════════════════════════════════════════ */
.outcomes-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.outcomes-list {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.outcome-item {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.outcome-icon {
  font-size: 1.8rem;
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--light-grey);
  border-radius: var(--radius);
  flex-shrink: 0;
}

.outcome-text h4 {
  font-size: .98rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 5px;
}

.outcome-text p {
  font-size: .87rem;
  color: var(--text-light);
  line-height: 1.6;
}

.outcomes-highlights {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  align-content: start;
}

.takeaway-card {
  background: var(--navy);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: var(--trans);
}

.takeaway-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }

.takeaway-icon { font-size: 1.8rem; }

.takeaway-card p {
  font-size: .88rem;
  color: rgba(255,255,255,.8);
  line-height: 1.55;
}

/* ══════════════════════════════════════════════════════════
   REGISTRATION
   ══════════════════════════════════════════════════════════ */
.reg-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
  margin-bottom: 64px;
}

.reg-fees h3 {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 24px;
}

.fee-cards {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 24px;
}

.fee-card {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: var(--trans);
  position: relative;
  overflow: hidden;
}

.fee-card:hover {
  background: rgba(255,255,255,.08);
  border-color: var(--teal-light);
}

.fee-card.featured {
  border-color: var(--teal);
  background: rgba(45,112,96,.12);
}

.fee-badge {
  position: absolute;
  top: 8px; right: 12px;
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--teal-light);
  background: rgba(45,112,96,.18);
  padding: 2px 8px;
  border-radius: 3px;
}

.fee-icon { font-size: 1.6rem; flex-shrink: 0; }

.fee-label {
  flex: 1;
  font-size: .95rem;
  font-weight: 600;
  color: rgba(255,255,255,.9);
}

.fee-amount {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--white);
  letter-spacing: -.02em;
}

.fee-note {
  font-size: .82rem;
  color: rgba(255,255,255,.5);
  line-height: 1.6;
  padding: 16px;
  background: rgba(255,255,255,.04);
  border-radius: var(--radius);
  border-left: 3px solid rgba(255,255,255,.15);
}

.reg-cta-card {
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius-xl);
  padding: 36px;
}

.deadline-banner {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .85rem;
  font-weight: 600;
  color: var(--gold-light);
  background: rgba(155,112,32,.12);
  border: 1px solid rgba(155,112,32,.28);
  padding: 10px 18px;
  border-radius: 4px;
  margin-bottom: 24px;
  width: fit-content;
}

.deadline-banner svg { width: 16px; height: 16px; }

.reg-cta-card h3 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 10px;
}

.reg-cta-card p {
  font-size: .9rem;
  color: rgba(255,255,255,.65);
  margin-bottom: 24px;
  line-height: 1.6;
}

.qr-label {
  text-align: center;
  font-size: .8rem;
  color: rgba(255,255,255,.5);
  margin: 20px 0 12px;
}

.qr-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.qr-box {
  width: 120px;
  height: 120px;
  background: var(--white);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px;
}

.qr-inner {
  width: 100%;
  height: 100%;
  color: var(--navy);
  display: flex;
  align-items: center;
  justify-content: center;
}

.qr-inner svg { width: 100%; height: 100%; }

.qr-placeholder > span {
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: rgba(255,255,255,.4);
}

/* ── Accommodation ────────────────────────────────────── */
.accommodation {
  border-top: 1px solid rgba(255,255,255,.1);
  padding-top: 48px;
}

.accommodation h3 {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 8px;
}

.accom-note {
  font-size: .88rem;
  color: rgba(255,255,255,.55);
  margin-bottom: 28px;
}

.accom-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  max-width: 640px;
  margin-bottom: 16px;
}

.accom-card {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: var(--trans);
}

.accom-card:hover {
  background: rgba(255,255,255,.1);
  border-color: var(--teal);
}

.accom-icon { font-size: 1.8rem; }

.accom-info h4 {
  font-size: .95rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 3px;
}

.accom-info p {
  font-size: .8rem;
  color: rgba(255,255,255,.5);
}

.accom-rate {
  margin-left: auto;
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--white);
  white-space: nowrap;
}

.accom-rate span {
  font-size: .75rem;
  font-weight: 500;
  color: rgba(255,255,255,.5);
}

.accom-footer {
  font-size: .78rem;
  color: rgba(255,255,255,.4);
  font-style: italic;
}

/* ══════════════════════════════════════════════════════════
   TEAM
   ══════════════════════════════════════════════════════════ */
.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.team-card {
  background: var(--white);
  border: 1px solid var(--light-grey);
  border-radius: var(--radius-xl);
  padding: 32px 24px;
  text-align: center;
  transition: var(--trans);
}

.team-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(45,112,96,.25);
}

.team-avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--navy), var(--navy-light));
  color: var(--white);
  font-size: 1.1rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  letter-spacing: .05em;
}

.team-card h3 {
  font-size: .98rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 8px;
  line-height: 1.3;
}

.team-affil {
  font-size: .8rem;
  color: var(--mid-grey);
  margin-bottom: 16px;
  line-height: 1.5;
}

.team-email {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: .78rem;
  font-weight: 500;
  color: var(--teal);
  word-break: break-all;
  transition: var(--trans);
}

.team-email svg { width: 14px; height: 14px; flex-shrink: 0; }

.team-email:hover { color: var(--teal-light); }

.institution-bar {
  background: var(--light-grey);
  border-radius: var(--radius-xl);
  padding: 32px 40px;
}

.institution-info {
  display: flex;
  align-items: center;
  gap: 24px;
}

.inst-logo {
  width: 72px;
  height: 72px;
  background: var(--navy);
  color: var(--white);
  font-size: 1rem;
  font-weight: 900;
  letter-spacing: -.04em;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.institution-info strong {
  display: block;
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 4px;
}

.institution-info p {
  font-size: .85rem;
  color: var(--text-light);
  line-height: 1.55;
}

/* ══════════════════════════════════════════════════════════
   CONTACT
   ══════════════════════════════════════════════════════════ */
.contact-layout {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.contact-card {
  background: var(--white);
  border: 1px solid var(--light-grey);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  text-align: center;
  transition: var(--trans);
}

.contact-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

.contact-icon {
  width: 56px;
  height: 56px;
  background: rgba(45,112,96,.12);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}

.contact-icon svg { width: 24px; height: 24px; color: var(--teal); }

.contact-card h4 {
  font-size: .95rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 8px;
}

.contact-card a {
  font-size: .9rem;
  color: var(--teal);
  font-weight: 500;
  word-break: break-all;
  transition: var(--trans);
}

.contact-card a:hover { color: var(--teal-light); }

.contact-card p {
  font-size: .88rem;
  color: var(--text-light);
  line-height: 1.6;
}

.contact-cta {
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.contact-cta p {
  width: 100%;
  font-size: .95rem;
  color: var(--text-light);
  margin-bottom: 8px;
}

/* ══════════════════════════════════════════════════════════
   FOOTER
   ══════════════════════════════════════════════════════════ */
.footer {
  background: var(--navy);
  color: rgba(255,255,255,.7);
  padding: 56px 0 32px;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.footer-brand {
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -.02em;
  color: var(--white);
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 4px;
}

.footer-brand p {
  width: 100%;
  font-size: .85rem;
  font-weight: 400;
  color: rgba(255,255,255,.5);
  margin-top: 8px;
  line-height: 1.55;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.footer-links a {
  font-size: .85rem;
  color: rgba(255,255,255,.55);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  transition: var(--trans);
}

.footer-links a:hover { color: var(--white); background: rgba(255,255,255,.06); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-bottom p {
  font-size: .82rem;
  color: rgba(255,255,255,.4);
}

.footer-note { font-style: italic; }

/* ══════════════════════════════════════════════════════════
   BACK TO TOP
   ══════════════════════════════════════════════════════════ */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 900;
  width: 44px;
  height: 44px;
  background: var(--teal);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transform: translateY(16px);
  transition: var(--trans);
}

.back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.back-to-top:hover { background: var(--teal-light); transform: translateY(-2px); }

.back-to-top svg { width: 20px; height: 20px; color: var(--white); }

/* ══════════════════════════════════════════════════════════
   ANIMATIONS
   ══════════════════════════════════════════════════════════ */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .6s ease, transform .6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ══════════════════════════════════════════════════════════
   RESPONSIVE – TABLET (≤1024px)
   ══════════════════════════════════════════════════════════ */
@media (max-width: 1024px) {
  .sessions-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .schedule-timeline {
    grid-template-columns: 1fr;
  }

  .day-connector {
    flex-direction: row;
    padding: 0 0 0 32px;
    height: 24px;
  }

  .connector-line {
    width: 30px;
    height: 2px;
    background: linear-gradient(to right, var(--light-grey), var(--teal));
  }

  .team-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }
}

/* ══════════════════════════════════════════════════════════
   RESPONSIVE – MOBILE (≤768px)
   ══════════════════════════════════════════════════════════ */
@media (max-width: 768px) {
  :root { --section-gap: 72px; }

  .nav-toggle { display: flex; }

  .nav-links {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0;
    background: rgba(18,28,42,.98);
    backdrop-filter: blur(16px);
    padding: 88px 24px 40px;
    flex-direction: column;
    gap: 4px;
    align-items: stretch;
    z-index: 999;
  }

  .nav-links.open { display: flex; }

  .nav-links a {
    padding: 14px 20px;
    font-size: 1rem;
    border-radius: var(--radius);
  }

  .nav-cta {
    margin-left: 0 !important;
    margin-top: 8px;
    text-align: center;
    justify-content: center;
    border-radius: var(--radius) !important;
  }

  .hero-cap { font-size: clamp(2.2rem, 10vw, 3.5rem); }

  .hero-meta { flex-direction: column; gap: 12px; }

  .hero-actions { flex-direction: column; }

  .hero-actions .btn { width: 100%; justify-content: center; }

  .stats-inner {
    grid-template-columns: repeat(2, 1fr);
    display: grid;
    gap: 0;
  }

  .stat-divider { display: none; }

  .stat-item { padding: 20px; }

  .objectives-grid { grid-template-columns: 1fr; }

  .sessions-grid { grid-template-columns: 1fr; }

  .reg-layout { grid-template-columns: 1fr; gap: 36px; }

  .accom-cards { grid-template-columns: 1fr; }

  .outcomes-layout { grid-template-columns: 1fr; gap: 48px; }

  .outcomes-highlights { grid-template-columns: 1fr; }

  .team-grid { grid-template-columns: 1fr; }

  .contact-layout { grid-template-columns: 1fr; }

  .institution-info { flex-direction: column; text-align: center; }

  .schedule-timeline { grid-template-columns: 1fr; }

  .day-connector { display: none; }

  .section-header { margin-bottom: 40px; }
}

/* ══════════════════════════════════════════════════════════
   RESPONSIVE – SMALL (≤480px)
   ══════════════════════════════════════════════════════════ */
@media (max-width: 480px) {
  .container { padding: 0 16px; }

  .hero-content { padding-top: 88px; }

  .hero-badge { font-size: .72rem; padding: 6px 14px; }

  .hero-instruments { gap: 6px; }

  .instrument-chip { font-size: .75rem; padding: 5px 10px; }

  .fee-card { flex-wrap: wrap; }

  .fee-amount { font-size: 1.2rem; }

  .back-to-top { bottom: 20px; right: 20px; }
}

/* ── Speakers ───────────────────────────────────────────── */
.speakers-group {
  margin-bottom: 56px;
}

.speakers-group-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--navy);
  letter-spacing: .04em;
  text-transform: uppercase;
  margin-bottom: 28px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.sgt-icon { font-size: 1.3rem; }

.speakers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

.speaker-card {
  display: flex;
  align-items: center;
  gap: 18px;
  background: var(--white);
  border: 1px solid var(--light-grey);
  border-radius: var(--radius);
  padding: 20px 22px;
  box-shadow: var(--shadow-sm);
  transition: var(--trans);
}

.speaker-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
  border-color: var(--teal);
}

.speaker-card.industry:hover {
  border-color: var(--gold);
}

.speaker-avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: .95rem;
  flex-shrink: 0;
  letter-spacing: .03em;
}

.av-blue  { background: rgba(45,112,96,.14);   color: var(--teal); }
.av-teal  { background: rgba(155,112,32,.14);  color: var(--gold); }
.av-gold  { background: rgba(30,45,64,.10);    color: var(--navy); }
.av-navy  { background: rgba(30,45,64,.12);    color: var(--navy); }

.speaker-info h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}

.speaker-affil {
  font-size: .82rem;
  color: var(--text-light);
  line-height: 1.4;
}

.speakers-industry { margin-bottom: 0; }

@media (max-width: 640px) {
  .speakers-grid { grid-template-columns: 1fr; }
}