@import url("https://fonts.googleapis.com/css2?family=EB+Garamond:ital,wght@0,400;0,500;0,600;0,700;1,400;1,600&family=DM+Sans:wght@300;400;500;600&display=swap");

:root {
  /* ── Artboard Colour System ── */
  --green-deep: #1a3a2a; /* darkest — hero bg, footer bg            */
  --green-brand: #1b5e3a; /* primary brand green — headings, borders  */
  --green-mid: #2d6a4f; /* mid — pill bg, accent fills              */
  --green-light: #4a8c68; /* lighter accent                           */
  --cream: #f4f1eb; /* main page background                     */
  --cream-dark: #ebe8e0; /* card / section backgrounds               */
  --white: #ffffff;
  --gold: #c5993a; /* highlight / star / CPD badge             */
  --text-dark: #111111;
  --text-body: #333333;
  --text-muted: #666666;

  /* ── Spacing ── */
  --section-gap: 6rem;
  --radius-sm: 4px;
  --radius-pill: 100px;

  /* ── Typography ── */
  --font-display: "EB Garamond", Georgia, serif;
  --font-body: "DM Sans", system-ui, sans-serif;

  /* ── Shadow ── */
  --shadow-card: 0 2px 16px rgba(0, 0, 0, 0.06);
  --shadow-hover: 0 8px 32px rgba(0, 0, 0, 0.12);
  --transition: all 0.3s ease;
}

/* ── Reset ── */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  font-size: 16px;
}
body {
  font-family: var(--font-body);
  background-color: var(--cream);
  color: var(--text-body);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-display);
  color: var(--green-brand);
  line-height: 1.15;
}
a {
  text-decoration: none;
  color: var(--green-brand);
  transition: var(--transition);
}
a:hover {
  color: var(--green-mid);
}
ul {
  list-style: none;
}
img {
  display: block;
  max-width: 100%;
}

/* ── Container ── */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* ── Utility ── */
.text-center {
  text-align: center;
}
.text-muted {
  color: var(--text-muted);
}
.text-gold {
  color: var(--gold);
}
.text-white {
  color: var(--white);
}

/* ── Pill badge ── */
.pill {
  display: inline-block;
  background: var(--green-brand);
  color: var(--white);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.4rem 1.2rem;
  border-radius: var(--radius-pill);
}
.pill-outline {
  background: transparent;
  border: 2px solid var(--green-brand);
  color: var(--green-brand);
}
.pill-gold {
  background: var(--gold);
  color: var(--white);
}
.pill-ghost {
  background: rgba(27, 94, 58, 0.12);
  color: var(--green-brand);
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 2rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transition);
}
.btn-primary {
  background: var(--green-brand);
  color: var(--white);
  border-color: var(--green-brand);
}
.btn-primary:hover {
  background: var(--green-deep);
  border-color: var(--green-deep);
  color: var(--white);
  box-shadow: var(--shadow-hover);
}
.btn-outline-white {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.6);
}
.btn-outline-white:hover {
  background: rgba(255, 255, 255, 0.12);
  color: var(--white);
  border-color: var(--white);
}
.btn-outline-green {
  background: transparent;
  color: var(--green-brand);
  border-color: var(--green-brand);
}
.btn-outline-green:hover {
  background: var(--green-brand);
  color: var(--white);
}

/* ══════════════════════════════════════════
   HEADER / NAV
══════════════════════════════════════════ */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 1rem 0;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.08);
  transition: var(--transition);
}
header.scrolled {
  padding: 0.75rem 0;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.1);
}
header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.logo-wrap {
  display: flex;
  align-items: center;
  padding: 5px 0;
}
.logo-img {
  height: 36px;
  width: auto;
  display: block;
}

.nav-links {
  display: flex;
  gap: 1.75rem;
  align-items: center;
}
.nav-links a {
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dark);
}
.nav-links a:hover {
  color: var(--green-brand);
}
.nav-links .nav-cta {
  background: var(--green-brand);
  color: var(--white) !important;
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-sm);
}
header.scrolled .nav-links .nav-cta {
  background: var(--green-brand);
  color: var(--white) !important;
}
.nav-links .nav-cta:hover {
  background: var(--green-deep);
  color: var(--white);
}

/* ── Mobile nav toggle (hamburger) ── */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px 4px;
  z-index: 1001;
  flex-shrink: 0;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-dark);
  border-radius: 2px;
  transition: var(--transition);
  transform-origin: center;
}
header.nav-open .nav-toggle span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
header.nav-open .nav-toggle span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
header.nav-open .nav-toggle span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ══════════════════════════════════════════
   HERO
══════════════════════════════════════════ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  background-color: var(--green-deep);
  background-image:
    linear-gradient(
      to right,
      rgba(26, 58, 42, 0.97) 55%,
      rgba(26, 58, 42, 0.55) 100%
    ),
    url("../images/hero.png");
  background-size: cover;
  background-position: center right;
  color: var(--white);
  overflow: hidden;
}

/* Decorative corner ring */
.hero::after {
  content: "";
  position: absolute;
  bottom: -120px;
  right: -120px;
  width: 480px;
  height: 480px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.06);
  pointer-events: none;
}
.hero::before {
  content: "";
  position: absolute;
  bottom: -60px;
  right: -60px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.04);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
  padding: 8rem 0 6rem;
}

.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 2rem;
}
.hero-eyebrow .pill {
  font-size: 0.72rem;
}
.hero-eyebrow-line {
  width: 40px;
  height: 1px;
  background: rgba(255, 255, 255, 0.3);
}
.hero-eyebrow-text {
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.55);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 4.5vw, 4rem);
  font-weight: 600;
  color: var(--white);
  max-width: 780px;
  margin-bottom: 1.5rem;
  line-height: 1.12;
}
.hero h1 em {
  font-style: italic;
  color: rgba(255, 255, 255, 0.75);
}

.hero-sub {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.65);
  max-width: 540px;
  margin-bottom: 2.5rem;
  font-weight: 300;
  line-height: 1.7;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-bottom: 3rem;
  padding: 1.5rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.hero-meta-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.hero-meta-item svg {
  width: 16px;
  height: 16px;
  opacity: 0.5;
  flex-shrink: 0;
}
.hero-meta-label {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.4);
  display: block;
}
.hero-meta-value {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--white);
  display: block;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-badges {
  display: flex;
  gap: 1.5rem;
  margin-top: 3rem;
  padding-top: 2rem;
  align-items: center;
}
.hero-badge-item {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.4);
}
.hero-badge-item strong {
  display: block;
  font-size: 0.82rem;
  color: var(--gold);
  margin-bottom: 0.1rem;
}
.hero-badge-sep {
  width: 1px;
  height: 32px;
  background: rgba(255, 255, 255, 0.1);
}

/* ══════════════════════════════════════════
   SECTION SHARED STYLES
══════════════════════════════════════════ */
section {
  padding: var(--section-gap) 0;
}

.section-label {
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--green-mid);
  margin-bottom: 0.75rem;
  display: block;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  font-weight: 600;
  color: var(--green-brand);
  margin-bottom: 1rem;
}
.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 640px;
  line-height: 1.7;
}
.section-header {
  margin-bottom: 4rem;
}
.section-header.centered {
  text-align: center;
}
.section-header.centered .section-subtitle {
  margin: 0 auto;
}

/* thin rule */
.rule {
  width: 48px;
  height: 2px;
  background: var(--green-brand);
  margin: 1rem 0 1.5rem;
}
.rule.centered {
  margin-left: auto;
  margin-right: auto;
}

/* ══════════════════════════════════════════
   WHY THIS MATTERS
══════════════════════════════════════════ */
#about {
  background: var(--cream);
}

.value-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}
.value-card {
  background: var(--white);
  padding: 2.5rem 2rem;
  border-radius: var(--radius-sm);
  border-top: 3px solid var(--green-brand);
  box-shadow: var(--shadow-card);
  transition: var(--transition);
}
.value-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.value-card-num {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--cream-dark);
  line-height: 1;
  margin-bottom: 1rem;
}
.value-card h3 {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 700;
  color: var(--green-brand);
  margin-bottom: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.value-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ══════════════════════════════════════════
   LEADERSHIP
══════════════════════════════════════════ */
#leadership {
  background: var(--white);
}

.speakers-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}
.speaker-card {
  background: var(--cream);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: var(--transition);
}
.speaker-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}
.speaker-photo {
  width: 100%;
  aspect-ratio: 1;
  background: var(--green-brand);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.25);
  position: relative;
  overflow: hidden;
}
.speaker-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
}
.speaker-photo-initials {
  position: absolute;
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.2);
}
.speaker-role-tag {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(transparent, rgba(26, 58, 42, 0.9));
  padding: 1.5rem 1rem 0.75rem;
}
.speaker-role-tag .pill {
  font-size: 0.68rem;
}

.speaker-info {
  padding: 1.25rem 1.5rem 1.5rem;
}
.speaker-info h4 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--green-brand);
  margin-bottom: 0.3rem;
}
.speaker-info .role {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.5;
}
.speaker-info .org {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--green-mid);
  margin-top: 0.2rem;
}

/* ══════════════════════════════════════════
   SPEAKER IMAGE OVERLAY CARDS
══════════════════════════════════════════ */
.spk-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.spk-grid-5 {
  grid-template-columns: repeat(5, 1fr);
}
.spk-grid-4 {
  grid-template-columns: repeat(4, 1fr);
}
.spk-card {
  position: relative;
  border-radius: 6px;
  overflow: hidden;
  aspect-ratio: 3/4;
  background: linear-gradient(160deg, #2a5842 0%, #1a3a2a 65%);
  transition: var(--transition);
}
.spk-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.spk-card > img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: bottom center;
  display: block;
}
.spk-initials-bg {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.15);
  pointer-events: none;
}
.spk-card.sm .spk-initials-bg { font-size: 2.2rem; }
.spk-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(15, 35, 25, 0.96) 0%, rgba(15, 35, 25, 0.65) 50%, transparent 100%);
  padding: 3rem 1rem 1rem;
}
.spk-card.sm .spk-overlay { padding: 2rem 0.75rem 0.75rem; }
.spk-tag {
  font-size: 0.58rem;
  padding: 0.2rem 0.65rem;
  margin-bottom: 0.45rem;
  display: inline-block;
}
.spk-overlay h4 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 0.2rem;
  line-height: 1.2;
}
.spk-card.sm .spk-overlay h4 { font-size: 0.88rem; }
.spk-overlay .spk-role {
  font-size: 0.74rem;
  color: rgba(255, 255, 255, 0.72);
  line-height: 1.4;
  margin-bottom: 0.1rem;
}
.spk-card.sm .spk-overlay .spk-role { font-size: 0.66rem; }
.spk-overlay .spk-org {
  font-size: 0.68rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.5);
}

/* Keynote featured layout */
.keynote-feature {
  display: grid;
  grid-template-columns: 300px 1fr;
  background: var(--white);
  border-radius: 6px;
  overflow: hidden;
  box-shadow: var(--shadow-card);
  margin-bottom: 5rem;
}
.keynote-feature .spk-card {
  border-radius: 0;
  aspect-ratio: auto;
  min-height: 360px;
}
.keynote-content {
  padding: 3rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.keynote-content .pill { margin-bottom: 1.25rem; }
.keynote-content h3 {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 600;
  color: var(--green-brand);
  margin-bottom: 0.4rem;
}
.keynote-content .spk-role {
  font-size: 1rem;
  color: var(--text-muted);
  margin-bottom: 0.2rem;
}
.keynote-content .spk-org {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--green-mid);
}

/* session speakers full grid */
.session-speakers-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1.25rem;
}
.session-speaker-card {
  background: var(--cream);
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid rgba(27, 94, 58, 0.08);
  transition: var(--transition);
}
.session-speaker-card:hover {
  box-shadow: var(--shadow-hover);
}

.ss-photo {
  width: 100%;
  aspect-ratio: 1;
  background: var(--green-brand);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}
.ss-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
}
.ss-photo .initials {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.25);
}

.ss-info {
  padding: 0.85rem;
}
.ss-info h5 {
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--green-brand);
  margin-bottom: 0.25rem;
  line-height: 1.3;
}
.ss-info p {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.4;
}

/* Panel section within session */
.panel-label {
  text-align: center;
  margin: 2.5rem 0 1.5rem;
}
.panel-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

/* Speaker section sub-labels (Our Speakers) */
.spk-section-label {
  text-align: center;
  margin: 0 0 1.75rem;
}

/* ══════════════════════════════════════════
   SPEAKER CHIPS (PROGRAMME HOVER TOOLTIPS)
══════════════════════════════════════════ */
.session-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.5rem;
}
.session-chips-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin: 1rem 0 0.4rem;
}
.spk-chip {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  background: var(--cream);
  border: 1px solid rgba(27, 94, 58, 0.12);
  border-radius: 100px;
  padding: 0.25rem 0.75rem 0.25rem 0.25rem;
  cursor: default;
  transition: var(--transition);
}
.spk-chip:hover {
  border-color: var(--green-brand);
  background: rgba(27, 94, 58, 0.06);
}
.spk-chip-avatar {
  position: relative;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--green-deep);
  overflow: hidden;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.6rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.4);
  font-family: var(--font-display);
}
.spk-chip-avatar img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: bottom center;
}
.spk-chip-name {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--green-brand);
  white-space: nowrap;
}
.spk-chip-tooltip {
  position: absolute;
  bottom: calc(100% + 10px);
  left: 50%;
  transform: translateX(-50%) translateY(6px);
  width: 220px;
  background: var(--green-deep);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: 500;
}
.spk-chip:hover .spk-chip-tooltip {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}
.spk-chip-tooltip::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 6px solid transparent;
  border-top-color: var(--green-deep);
}
.spk-chip-tip-img {
  position: relative;
  width: 100%;
  height: 110px;
  background: linear-gradient(160deg, #2a5842 0%, #1a3a2a 70%);
  overflow: hidden;
}
.spk-chip-tip-img img {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  height: 100%;
  width: auto;
  max-width: 100%;
  object-fit: contain;
  object-position: bottom center;
}
.spk-chip-tip-initials {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.1);
}
.spk-chip-tip-info {
  padding: 0.75rem 1rem 1rem;
}
.spk-chip-tip-info strong {
  display: block;
  font-size: 0.9rem;
  color: var(--white);
  font-family: var(--font-display);
  line-height: 1.3;
  margin-bottom: 0.3rem;
}
.spk-chip-tip-info p {
  font-size: 0.74rem;
  color: rgba(255, 255, 255, 0.65);
  line-height: 1.4;
  margin-bottom: 0.05rem;
}
.spk-chip-tip-info .pill {
  font-size: 0.58rem;
  padding: 0.15rem 0.5rem;
  margin-top: 0.4rem;
  display: inline-block;
}

/* ══════════════════════════════════════════
   PROGRAMME ACCORDION
══════════════════════════════════════════ */
#programme {
  background: var(--cream);
}

.accordion {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.accordion-item {
  background: var(--white);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(27, 94, 58, 0.1);
  overflow: hidden;
  transition: var(--transition);
}
.accordion-item.active {
  overflow: visible;
  z-index: 10;
}
.accordion-item:hover {
  box-shadow: var(--shadow-card);
}

.accordion-header {
  padding: 1.5rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  border-left: 4px solid var(--green-brand);
  transition: var(--transition);
}
.accordion-header:hover {
  background: var(--cream);
}
.accordion-header-left {
  flex: 1;
}

.accordion-eyebrow {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--green-mid);
  margin-bottom: 0.3rem;
}
.accordion-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--green-brand);
}
.accordion-header-right {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-shrink: 0;
  margin-left: 1.5rem;
}
.accordion-time {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--gold);
  white-space: nowrap;
}
.accordion-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1.5px solid var(--green-brand);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--green-brand);
  font-size: 1.1rem;
  transition:
    transform 0.3s ease,
    background 0.2s;
  flex-shrink: 0;
}
.accordion-item.active .accordion-icon {
  transform: rotate(45deg);
  background: var(--green-brand);
  color: var(--white);
}

.accordion-content {
  padding: 0 2rem;
  max-height: 0;
  overflow: hidden;
  transition:
    max-height 0.4s ease-out,
    padding 0.3s ease;
}
.accordion-item.active .accordion-content {
  padding: 1.5rem 2rem 2rem;
  max-height: 1200px;
  overflow: visible;
}
.accordion-content > p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

/* ══════════════════════════════════════════
   WHY ATTEND
══════════════════════════════════════════ */
#attend {
  background: var(--white);
}

.attend-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}
.attend-audiences {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.audience-item {
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--cream-dark);
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
}
.audience-item:first-child {
  border-top: 1px solid var(--cream-dark);
}
.audience-num {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--cream-dark);
  flex-shrink: 0;
  line-height: 1;
  margin-top: 0.1rem;
}
.audience-item h4 {
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--green-brand);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.35rem;
}
.audience-item p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.attend-callout {
  background: var(--green-brand);
  padding: 3rem;
  border-radius: var(--radius-sm);
  color: var(--white);
}
.attend-callout h3 {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 1rem;
}
.attend-callout p {
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.95rem;
  line-height: 1.75;
}
.attend-callout .rule {
  background: rgba(255, 255, 255, 0.2);
  margin: 1.5rem 0;
  width: 100%;
  height: 1px;
}

.attend-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  margin-top: 2rem;
}
.stat-item h5 {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--white);
}
.stat-item p {
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.55);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* ══════════════════════════════════════════
   CARBON NEUTRAL
══════════════════════════════════════════ */
#carbon-neutral {
  background: var(--green-deep);
  background-image:
    linear-gradient(rgba(26, 58, 42, 0.93), rgba(26, 58, 42, 0.97)),
    url("../images/carbon_bg.png");
  background-size: cover;
  background-position: center;
  color: var(--white);
}
#carbon-neutral .section-label {
  color: rgba(255, 255, 255, 0.45);
}
#carbon-neutral .section-title {
  color: var(--white);
}
#carbon-neutral .section-subtitle {
  color: rgba(255, 255, 255, 0.6);
}
#carbon-neutral .rule {
  background: rgba(255, 255, 255, 0.15);
}

.cn-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 3.5rem;
}
.cn-step {
  padding: 2.5rem 2rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.03);
  transition: var(--transition);
}
.cn-step:hover {
  background: rgba(255, 255, 255, 0.06);
}
.cn-step-num {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.06);
  line-height: 1;
  margin-bottom: 1.5rem;
}
.cn-step h4 {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.75rem;
}
.cn-step p {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.7;
}

/* ══════════════════════════════════════════
   SPONSORS
══════════════════════════════════════════ */
#sponsors {
  background: var(--cream);
}

.sponsors-row {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 5rem;
  flex-wrap: wrap;
  margin-top: 3rem;
  padding: 2rem 0;
}
.sponsor-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.55;
  filter: grayscale(100%);
  transition: var(--transition);
}
.sponsor-logo img {
  height: 48px;
  width: auto;
  max-width: 160px;
  object-fit: contain;
  display: block;
}
.sponsor-logo:hover {
  opacity: 1;
  filter: none;
}

/* ══════════════════════════════════════════
   FOOTER / REGISTER
══════════════════════════════════════════ */
footer {
  background: var(--green-deep);
  color: rgba(255, 255, 255, 0.6);
  padding: 5rem 0 2rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 4rem;
  padding-bottom: 4rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.footer-brand .logo-img {
  height: 48px;
}
.footer-tagline {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.45);
  margin-top: 1rem;
  line-height: 1.7;
  max-width: 280px;
}

.footer-col h5 {
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.35);
  margin-bottom: 1.25rem;
}
.footer-col p {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.55);
  line-height: 1.7;
  margin-bottom: 0.5rem;
}
.footer-col a {
  color: rgba(255, 255, 255, 0.55);
  font-size: 0.88rem;
}
.footer-col a:hover {
  color: var(--gold);
}
.footer-invest {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--white);
  line-height: 1;
  margin-bottom: 0.25rem;
}
.footer-invest-label {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.35);
  margin-bottom: 1.5rem;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 2rem;
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.25);
}
.footer-bottom a {
  color: rgba(255, 255, 255, 0.25);
}
.footer-bottom a:hover {
  color: rgba(255, 255, 255, 0.6);
}
.footer-links {
  display: flex;
  gap: 1.5rem;
}

/* ══════════════════════════════════════════
   BACK TO TOP
══════════════════════════════════════════ */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--green-brand);
  color: var(--white);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: var(--transition);
  z-index: 999;
}
.back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}
.back-to-top:hover {
  background: var(--green-deep);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.2);
}

/* Keynote quote block */
.keynote-quote {
  margin-top: 1.5rem;
  padding: 1rem 1.25rem;
  border-left: 3px solid var(--green-brand);
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.65;
  background: var(--cream);
  border-radius: 0 4px 4px 0;
}

/* Featured single speaker card (Keynote) */
.spk-featured-single {
  display: flex;
  justify-content: center;
  margin-bottom: 4rem;
}
.spk-featured-single .spk-card {
  width: 280px;
}

/* ══════════════════════════════════════════
   CSRSA SECTION
══════════════════════════════════════════ */
#csrsa {
  background: var(--white);
}
.csrsa-layout {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 4rem;
  align-items: start;
}
.csrsa-banner-wrap {
  position: relative;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 12px 48px rgba(0, 0, 0, 0.18), 0 4px 16px rgba(0, 0, 0, 0.12);
}
.csrsa-banner-img {
  width: 100%;
  height: auto;
  display: block;
}
.csrsa-content {
  padding-top: 0.5rem;
}
.csrsa-abbr-pill {
  margin-bottom: 1.25rem;
  font-size: 0.95rem;
  letter-spacing: 0.18em;
}
.csrsa-lead {
  font-size: 1rem;
  color: var(--text-body);
  line-height: 1.75;
  margin-bottom: 2rem;
}
.csrsa-lead strong {
  color: var(--green-brand);
}
.csrsa-levels-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-bottom: 2.5rem;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid rgba(27, 94, 58, 0.1);
}
.csrsa-level-item {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  padding: 1.1rem 1.5rem;
  background: var(--cream);
  border-bottom: 1px solid rgba(27, 94, 58, 0.08);
  transition: var(--transition);
}
.csrsa-level-item:last-child {
  border-bottom: none;
}
.csrsa-level-item:hover {
  background: rgba(27, 94, 58, 0.04);
}
.csrsa-level-badge {
  font-family: var(--font-body);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--white);
  background: var(--green-brand);
  padding: 0.3rem 0.65rem;
  border-radius: 100px;
  white-space: nowrap;
  flex-shrink: 0;
  margin-top: 0.1rem;
}
.csrsa-level-item strong {
  display: block;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--green-brand);
  margin-bottom: 0.15rem;
}
.csrsa-level-item p {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.4;
}
.csrsa-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ══════════════════════════════════════════
   CONTACT SECTION
══════════════════════════════════════════ */
.contact-section {
  background: var(--green-deep);
}
.contact-label {
  color: rgba(255, 255, 255, 0.45) !important;
}
.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}
.contact-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  padding: 2rem 2rem 2rem;
  transition: var(--transition);
}
.contact-card:hover {
  background: rgba(255, 255, 255, 0.09);
  border-color: rgba(255, 255, 255, 0.18);
}
.contact-avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 1rem;
}
.contact-card h4 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.contact-details {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}
.contact-detail-item {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}
.contact-detail-item svg {
  flex-shrink: 0;
  opacity: 0.55;
  color: var(--white);
}
.contact-detail-item a {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.7);
  word-break: break-all;
}
.contact-detail-item a:hover {
  color: var(--white);
}
.contact-address {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  max-width: 480px;
  margin: 0 auto;
  padding: 1.75rem 2rem;
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.08);
}
.contact-address svg {
  flex-shrink: 0;
  color: var(--white);
  opacity: 0.5;
  margin-top: 0.15rem;
}
.contact-address p {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.6;
}

/* ══════════════════════════════════════════
   SCROLL REVEAL
══════════════════════════════════════════ */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 0.7s ease-out,
    transform 0.7s ease-out;
}
.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* ══════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════ */
@media (max-width: 1024px) {
  .value-grid { grid-template-columns: repeat(2, 1fr); }
  .speakers-grid { grid-template-columns: repeat(2, 1fr); }
  .spk-grid { grid-template-columns: repeat(2, 1fr); }
  .spk-grid-5 { grid-template-columns: repeat(3, 1fr); }
  .spk-grid-4 { grid-template-columns: repeat(2, 1fr); }
  .session-speakers-grid { grid-template-columns: repeat(3, 1fr); }
  .panel-grid { grid-template-columns: repeat(3, 1fr); }
  .keynote-feature { grid-template-columns: 240px 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 1024px) {
  .csrsa-layout { grid-template-columns: 240px 1fr; gap: 2.5rem; }
}

@media (max-width: 768px) {
  :root { --section-gap: 4rem; }

  /* ── Mobile nav ── */
  .nav-toggle { display: flex; }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: var(--white);
    flex-direction: column;
    align-items: stretch;
    padding: 0.5rem 0 1rem;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    border-top: 1px solid rgba(0, 0, 0, 0.06);
    gap: 0;
  }
  header.nav-open .nav-links { display: flex; }
  .nav-links a {
    padding: 0.85rem 2rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
    font-size: 0.88rem;
    letter-spacing: 0.06em;
    width: 100%;
  }
  .nav-links .nav-cta {
    margin: 0.75rem 1.5rem 0;
    border-radius: var(--radius-sm);
    text-align: center;
    display: block;
    width: auto;
    padding: 0.65rem 1.25rem;
  }

  /* ── Hero padding ── */
  .hero-inner { padding: 6rem 0 4.5rem; }
  .hero h1 { font-size: 2.2rem; }
  .value-grid { grid-template-columns: 1fr; }
  .speakers-grid { grid-template-columns: 1fr; }
  .spk-grid { grid-template-columns: repeat(2, 1fr); }
  .spk-grid-5 { grid-template-columns: repeat(2, 1fr); }
  .spk-grid-4 { grid-template-columns: repeat(2, 1fr); }
  .session-speakers-grid { grid-template-columns: repeat(2, 1fr); }
  .panel-grid { grid-template-columns: 1fr; }
  .keynote-feature {
    grid-template-columns: 1fr;
  }
  .keynote-feature .spk-card { min-height: 260px; }
  .attend-grid { grid-template-columns: 1fr; }
  .cn-steps { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .footer-bottom { flex-direction: column; gap: 1rem; }
  .btn { width: 100%; justify-content: center; }
  .hero-cta { flex-direction: column; }
  .hero-meta { flex-direction: column; gap: 1rem; }
  .attend-stats { grid-template-columns: 1fr 1fr; }
  /* Mobile speaker overlay — prevent text from swamping the image */
  .spk-card.sm .spk-tag { display: none; }
  .spk-card.sm .spk-overlay { padding: 1.75rem 0.5rem 0.5rem; }
  .spk-card.sm .spk-overlay h4 { font-size: 0.8rem; line-height: 1.1; }
  .spk-card.sm .spk-overlay .spk-role {
    font-size: 0.62rem;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
  }
  .spk-card.sm .spk-overlay .spk-org { display: none; }
  /* Chips wrapping on mobile */
  .spk-chip-name { font-size: 0.74rem; }
  .spk-chip-tooltip { width: 190px; }

  /* CSRSA on mobile */
  .csrsa-layout { grid-template-columns: 1fr; gap: 2rem; }
  .csrsa-banner-wrap { max-width: 260px; margin: 0 auto; }
  .csrsa-actions { flex-direction: column; }
  .csrsa-actions .btn { width: 100%; justify-content: center; }

  /* Contact on mobile */
  .contact-grid { grid-template-columns: 1fr; }
  .contact-address { flex-direction: column; gap: 0.75rem; }
}

@media (max-width: 400px) {
  .container { padding: 0 1.25rem; }
}