/* ====== Lidera Lab 15 — GPTW landing page ====== */

:root {
  --navy-900: #0c1a36;
  --navy-800: #14264a;
  --navy-700: #1d3358;
  --blue-600: #3a5f7a;
  --blue-500: #517e96;
  --sage-500: #8fa890;
  --sage-400: #a8bba9;
  --orange-500: #e87e2c;
  --orange-600: #d3651a;
  --cream-100: #f4e9d0;
  --cream-50: #faf4e5;
  --paper: #fbf7ee;
  --ink: #0c1a36;
  --ink-60: rgba(12, 26, 54, 0.62);
  --ink-40: rgba(12, 26, 54, 0.4);
  --ink-15: rgba(12, 26, 54, 0.15);
  --ink-08: rgba(12, 26, 54, 0.08);

  --font-display: "Manrope", "Hanken Grotesk", system-ui, sans-serif;
  --font-body: "DM Sans", system-ui, sans-serif;

  --maxw: 1280px;
}

* {
  box-sizing: border-box;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  text-wrap: pretty;
}

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

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--ink);
  letter-spacing: -0.02em;
  line-height: 1;
  margin: 0;
  font-weight: 800;
}

p { margin: 0; }

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

button { font-family: inherit; cursor: pointer; }

/* ============ Mesh gradient (assinatura visual do evento) ============ */
.mesh {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(70% 60% at 8% 50%, var(--navy-800) 0%, transparent 55%),
    radial-gradient(60% 55% at 35% 35%, var(--blue-500) 0%, transparent 55%),
    radial-gradient(60% 70% at 55% 60%, var(--sage-400) 0%, transparent 55%),
    radial-gradient(55% 65% at 78% 55%, var(--orange-500) 0%, transparent 55%),
    radial-gradient(45% 55% at 95% 40%, var(--cream-100) 0%, transparent 60%),
    linear-gradient(120deg, var(--navy-700), var(--sage-500) 50%, var(--orange-500));
  filter: saturate(1.05);
}

.mesh-grain::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml;utf8,<svg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.5 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  opacity: 0.22;
  mix-blend-mode: overlay;
  pointer-events: none;
}

/* ============ Container ============ */
.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 28px;
}

/* ============ Header ============ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: rgba(251, 247, 238, 0.86);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--ink-08);
}
.site-header .row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
}
.site-header .logo { height: 32px; width: auto; display: block; }
.site-header nav {
  display: flex;
  gap: 28px;
  align-items: center;
}
.site-header nav a {
  font-size: 14px;
  color: var(--ink-60);
  font-weight: 500;
  transition: color 0.2s;
}
.site-header nav a:hover { color: var(--ink); }

/* ============ Buttons ============ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 24px;
  border-radius: 999px;
  font-weight: 700;
  font-family: var(--font-display);
  font-size: 15px;
  letter-spacing: -0.01em;
  border: none;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
  text-decoration: none;
  cursor: pointer;
}
.btn-primary {
  background: var(--orange-500);
  color: var(--cream-50);
  box-shadow: 0 4px 18px -4px rgba(232, 126, 44, 0.5);
}
.btn-primary:hover {
  background: var(--orange-600);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px -4px rgba(232, 126, 44, 0.6);
}
.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 1.5px solid var(--ink);
}
.btn-ghost:hover { background: var(--ink); color: var(--cream-50); }
.btn-light {
  background: var(--cream-50);
  color: var(--navy-900);
}
.btn-light:hover { background: white; transform: translateY(-1px); }

/* ============ Hero ============ */
.hero {
  position: relative;
  min-height: 100vh;
  padding: 120px 0 80px;
  overflow: hidden;
  isolation: isolate;
  display: flex;
  align-items: center;
}
.hero .mesh { z-index: -2; }
.hero .grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 40px;
  align-items: center;
}
.hero .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.32em;
  font-size: 13px;
  color: var(--navy-900);
  margin-bottom: 28px;
}
.hero .eyebrow .stars {
  letter-spacing: 0.05em;
  color: var(--cream-50);
  text-shadow: 0 0 8px rgba(255,255,255,0.6);
}
.hero .eyebrow::after {
  content: "";
  display: inline-block;
  width: 96px;
  height: 1.5px;
  background: var(--navy-900);
  opacity: 0.55;
}
.hero h1.gptw {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(140px, 22vw, 280px);
  line-height: 0.85;
  letter-spacing: -0.06em;
  color: var(--navy-900);
  margin-bottom: 28px;
}
.hero .subtitle {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(22px, 2.6vw, 34px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--navy-900);
  margin-bottom: 18px;
  max-width: 580px;
}
.hero .lede {
  font-size: 17px;
  color: var(--navy-900);
  opacity: 0.85;
  margin-bottom: 36px;
  max-width: 500px;
  line-height: 1.55;
}
.hero .ctas { display: flex; gap: 14px; flex-wrap: wrap; }

/* Right column: event poster card */
.hero-poster {
  position: relative;
  border-radius: 28px;
  overflow: hidden;
  box-shadow: 0 40px 80px -30px rgba(12, 26, 54, 0.45),
              0 8px 30px -10px rgba(12, 26, 54, 0.25);
  aspect-ratio: 4 / 5;
  background: var(--navy-900);
  transform: rotate(1.5deg);
}
.hero-poster img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero-poster .float-badge {
  position: absolute;
  top: 20px;
  left: -16px;
  background: var(--orange-500);
  color: var(--cream-50);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 12px;
  letter-spacing: 0.1em;
  padding: 10px 18px;
  border-radius: 4px;
  transform: rotate(-4deg);
  box-shadow: 0 8px 20px -6px rgba(0,0,0,0.4);
  text-transform: uppercase;
}

/* Hero date stamp — floating */
.date-stamp {
  position: absolute;
  bottom: -28px;
  right: -16px;
  background: var(--cream-50);
  border-radius: 18px;
  padding: 18px 22px;
  box-shadow: 0 18px 40px -12px rgba(12, 26, 54, 0.35);
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: var(--font-display);
  transform: rotate(-2deg);
}
.date-stamp .day {
  font-size: 56px;
  font-weight: 900;
  letter-spacing: -0.04em;
  color: var(--navy-900);
  line-height: 1;
}
.date-stamp .right { display: flex; flex-direction: column; gap: 2px; }
.date-stamp .month { font-size: 24px; font-weight: 800; letter-spacing: -0.02em; color: var(--navy-900); line-height: 1; }
.date-stamp .time {
  font-size: 14px;
  font-weight: 600;
  color: var(--navy-900);
  opacity: 0.7;
  padding-top: 4px;
  border-top: 1.5px solid var(--navy-900);
  margin-top: 4px;
}

/* ============ Marquee strip ============ */
.marquee {
  background: var(--navy-900);
  color: var(--cream-50);
  padding: 22px 0;
  overflow: hidden;
  position: relative;
}
.marquee-track {
  display: flex;
  gap: 48px;
  animation: marquee 32s linear infinite;
  width: max-content;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 28px;
  letter-spacing: -0.02em;
  align-items: center;
}
.marquee-track span { display: inline-flex; align-items: center; gap: 48px; }
.marquee-track .dot {
  width: 10px;
  height: 10px;
  background: var(--orange-500);
  border-radius: 50%;
  display: inline-block;
}
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ============ Section base ============ */
section {
  position: relative;
  padding: 110px 0;
}
.section-eyebrow {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  font-size: 12px;
  color: var(--orange-500);
  margin-bottom: 18px;
  display: block;
}
.section-title {
  font-size: clamp(34px, 4.4vw, 60px);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.02;
  max-width: 880px;
  margin-bottom: 24px;
}
.section-lede {
  font-size: 18px;
  color: var(--ink-60);
  max-width: 640px;
  line-height: 1.55;
}

/* ============ About / Sobre o evento ============ */
.about {
  background: var(--paper);
  border-top: 1px solid var(--ink-08);
  border-bottom: 1px solid var(--ink-08);
}
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px 48px;
  margin-top: 40px;
}
.stat {
  border-top: 1.5px solid var(--ink);
  padding-top: 16px;
}
.stat .n {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 56px;
  letter-spacing: -0.04em;
  color: var(--navy-900);
  line-height: 1;
}
.stat .label {
  font-size: 14px;
  color: var(--ink-60);
  margin-top: 6px;
  line-height: 1.4;
}

/* ============ Speaker spotlight ============ */
.speaker-spot {
  background: var(--navy-900);
  color: var(--cream-50);
  overflow: hidden;
}
.speaker-spot h2, .speaker-spot .section-eyebrow { color: var(--cream-50); }
.speaker-spot .section-eyebrow { color: var(--orange-500); }
.speaker-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
}
.speaker-card {
  position: relative;
  border-radius: 24px;
  overflow: hidden;
  aspect-ratio: 4 / 5;
  background: var(--blue-600);
}
.speaker-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.speaker-tags {
  position: absolute;
  bottom: 24px;
  left: 24px;
  right: 24px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.tag-block {
  background: var(--cream-50);
  color: var(--navy-900);
  padding: 10px 16px;
  border-radius: 4px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  letter-spacing: -0.01em;
  box-shadow: 0 8px 20px -6px rgba(0,0,0,0.35);
}
.tag-block.dark { background: var(--navy-900); color: var(--cream-50); }
.tag-block .sub { display: block; font-weight: 500; font-size: 12px; opacity: 0.75; letter-spacing: 0; margin-top: 2px; }

.speaker-info .role-chip {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(244, 233, 208, 0.1);
  border: 1px solid rgba(244, 233, 208, 0.25);
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 20px;
}
.speaker-info h2 {
  font-size: clamp(40px, 4.5vw, 64px);
  margin-bottom: 20px;
  color: var(--cream-50);
}
.speaker-info p {
  font-size: 17px;
  color: rgba(244, 233, 208, 0.78);
  line-height: 1.6;
  margin-bottom: 16px;
  max-width: 480px;
}
.speaker-credentials {
  margin-top: 32px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.speaker-credentials .cred {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  font-size: 15px;
  color: rgba(244, 233, 208, 0.85);
}
.speaker-credentials .cred::before {
  content: "";
  display: block;
  width: 6px;
  height: 6px;
  background: var(--orange-500);
  border-radius: 50%;
  margin-top: 8px;
  flex: none;
}

/* host badge */
.host-badge {
  position: absolute;
  top: 24px;
  right: 24px;
  background: rgba(12, 26, 54, 0.65);
  backdrop-filter: blur(6px);
  color: var(--cream-50);
  padding: 8px 12px;
  border-radius: 6px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 13px;
}
.host-badge .sub { display: block; font-weight: 500; font-size: 11px; opacity: 0.75; }

/* ============ Themes / Você vai aprender ============ */
.themes { background: var(--cream-100); }
.themes-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 56px;
}
.theme-card {
  background: var(--paper);
  border: 1px solid var(--ink-08);
  border-radius: 24px;
  padding: 36px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  position: relative;
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s;
}
.theme-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 40px -20px rgba(12, 26, 54, 0.25);
}
.theme-card .n {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 80px;
  letter-spacing: -0.06em;
  color: var(--orange-500);
  line-height: 0.8;
  opacity: 0.92;
}
.theme-card h3 {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.02em;
}
.theme-card p {
  font-size: 15px;
  color: var(--ink-60);
  line-height: 1.55;
}

/* ============ Testimonials (grid editorial, sem fotos) ============ */
.testimonials {
  background: var(--paper);
  border-top: 1px solid var(--ink-08);
}
.t-grid {
  margin-top: 64px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.t-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 40px 36px 36px;
  border-radius: 24px;
  background: var(--cream-50);
  border: 1px solid var(--ink-08);
  margin: 0;
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
  min-height: 360px;
}
.t-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 24px 48px -24px rgba(12, 26, 54, 0.28);
}
/* Make the middle card feature variant — dark with accent */
.t-card:nth-child(2) {
  background: var(--navy-900);
  color: var(--cream-50);
  border-color: transparent;
}
.t-card:nth-child(2) .t-num { color: var(--orange-500); }
.t-card:nth-child(2) .t-mark { color: var(--orange-500); opacity: 0.3; }
.t-card:nth-child(2) blockquote { color: var(--cream-50); }
.t-card:nth-child(2) .t-name { color: var(--cream-50); }
.t-card:nth-child(2) .t-where { color: var(--orange-500); }
.t-card:nth-child(2) figcaption { border-top-color: rgba(244, 233, 208, 0.18); }

.t-num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--orange-500);
  margin-bottom: 4px;
}
.t-mark {
  position: absolute;
  top: 16px;
  right: 28px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 180px;
  line-height: 1;
  color: var(--orange-500);
  opacity: 0.18;
  letter-spacing: -0.06em;
  pointer-events: none;
}
.t-card blockquote {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 20px;
  line-height: 1.35;
  letter-spacing: -0.015em;
  color: var(--navy-900);
  margin: 16px 0 0;
  flex: 1;
}
.t-card figcaption {
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1.5px solid var(--ink-15);
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.t-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
  letter-spacing: -0.01em;
  color: var(--navy-900);
}
.t-where {
  font-size: 13px;
  color: var(--orange-500);
  font-weight: 600;
}

/* ============ Past leaders ============ */
.leaders { background: var(--paper); border-top: 1px solid var(--ink-08); }
.leaders-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 60px;
}
.leader-card {
  background: var(--cream-50);
  border-radius: 24px;
  overflow: hidden;
  border: 1px solid var(--ink-08);
  display: flex;
  flex-direction: column;
  transition: transform 0.3s, box-shadow 0.3s;
}
.leader-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 40px -20px rgba(12, 26, 54, 0.25);
}
.leader-portrait {
  aspect-ratio: 1 / 1;
  background: var(--blue-600);
  overflow: hidden;
  position: relative;
}
.leader-portrait img { width: 100%; height: 100%; object-fit: cover; }
.leader-portrait .ribbon {
  position: absolute;
  bottom: 16px;
  left: 16px;
  right: 16px;
  background: rgba(12, 26, 54, 0.85);
  backdrop-filter: blur(6px);
  color: var(--cream-50);
  padding: 10px 14px;
  border-radius: 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 13px;
}
.leader-body { padding: 24px; }
.leader-body h3 {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 6px;
}
.leader-body .role {
  font-size: 13px;
  color: var(--orange-500);
  font-weight: 600;
  margin-bottom: 14px;
}
.leader-body .quote {
  font-size: 14px;
  color: var(--ink-60);
  line-height: 1.55;
  font-style: italic;
}

/* ============ Event details / Quando + Onde ============ */
.details {
  position: relative;
  overflow: hidden;
  color: var(--cream-50);
  isolation: isolate;
}
.details .mesh { z-index: -2; opacity: 0.95; }
.details::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(12, 26, 54, 0.15), rgba(12, 26, 54, 0.55));
  z-index: -1;
}
.details h2 { color: var(--cream-50); }
.details .section-eyebrow { color: var(--cream-50); opacity: 0.85; }
.details-grid {
  margin-top: 56px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.detail-card {
  background: rgba(251, 247, 238, 0.12);
  backdrop-filter: blur(14px);
  border: 1px solid rgba(251, 247, 238, 0.25);
  border-radius: 22px;
  padding: 32px;
  color: var(--cream-50);
}
.detail-card .icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--orange-500);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--cream-50);
  margin-bottom: 20px;
}
.detail-card .label {
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  opacity: 0.75;
  margin-bottom: 8px;
  font-family: var(--font-display);
  font-weight: 700;
}
.detail-card .value {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.1;
}
.detail-card .sub {
  font-size: 14px;
  opacity: 0.75;
  margin-top: 8px;
}

/* Big CTA */
.cta-final {
  margin-top: 64px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  text-align: center;
}
.cta-final h3 {
  font-size: clamp(32px, 4vw, 48px);
  color: var(--cream-50);
  font-weight: 800;
  letter-spacing: -0.03em;
  max-width: 720px;
  line-height: 1.05;
}
.cta-final .btn-primary {
  font-size: 18px;
  padding: 18px 34px;
}

/* ============ Contact ============ */
.contact { background: var(--cream-100); }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.contact-form {
  background: var(--paper);
  padding: 36px;
  border-radius: 24px;
  border: 1px solid var(--ink-08);
}
.contact-form .field {
  margin-bottom: 18px;
}
.contact-form label {
  display: block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-60);
  margin-bottom: 8px;
  font-family: var(--font-display);
}
.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1.5px solid var(--ink-15);
  background: var(--paper);
  font-size: 15px;
  font-family: inherit;
  color: var(--ink);
  transition: border-color 0.2s;
}
.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--orange-500);
}
.contact-form textarea {
  min-height: 100px;
  resize: vertical;
}
.contact-form .btn {
  width: 100%;
  justify-content: center;
  margin-top: 6px;
}
.contact-success {
  margin-top: 14px;
  padding: 14px 18px;
  background: var(--sage-400);
  color: var(--navy-900);
  border-radius: 12px;
  font-size: 14px;
  font-weight: 600;
}

.contact-list { display: flex; flex-direction: column; gap: 24px; margin-top: 32px; }
.contact-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.contact-item .icon-wrap {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: var(--navy-900);
  color: var(--cream-50);
  display: flex;
  align-items: center;
  justify-content: center;
  flex: none;
}
.contact-item .label {
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-60);
  font-weight: 700;
  font-family: var(--font-display);
}
.contact-item .value {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  color: var(--navy-900);
}
.socials { display: flex; gap: 12px; margin-top: 24px; }
.socials a {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--navy-900);
  color: var(--cream-50);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s, transform 0.2s;
}
.socials a:hover { background: var(--orange-500); transform: translateY(-2px); }

/* ============ Footer ============ */
.site-footer {
  position: relative;
  overflow: hidden;
  background: var(--navy-900);
  color: var(--cream-50);
  padding: 60px 0 32px;
}
.site-footer .row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
}
.site-footer .logo { height: 36px; filter: brightness(0) invert(1) sepia(0.15); }
.site-footer .copy {
  border-top: 1px solid rgba(244, 233, 208, 0.15);
  padding-top: 24px;
  margin-top: 40px;
  font-size: 13px;
  opacity: 0.6;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

/* ============ Sticky CTA mobile ============ */
.sticky-cta {
  display: none;
}

/* ============ Responsive ============ */
@media (max-width: 980px) {
  .hero { padding-top: 96px; }
  .hero .grid { grid-template-columns: 1fr; gap: 60px; }
  .hero h1.gptw { font-size: clamp(110px, 32vw, 200px); }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .speaker-grid { grid-template-columns: 1fr; gap: 40px; }
  .themes-grid { grid-template-columns: 1fr; }
  .t-grid { grid-template-columns: 1fr; }
  .leaders-grid { grid-template-columns: 1fr; }
  .details-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .site-header nav { gap: 12px; }
  .site-header nav a:not(.btn) { display: none; }
  section { padding: 80px 0; }
  .marquee-track { font-size: 22px; gap: 32px; }
  .hero-poster { transform: none; }
  .date-stamp { transform: none; bottom: -20px; right: 12px; }
  .sticky-cta {
    display: flex;
    position: fixed;
    bottom: 16px;
    left: 16px;
    right: 16px;
    z-index: 60;
  }
  .sticky-cta .btn { width: 100%; justify-content: center; }
}

@media (max-width: 540px) {
  .wrap { padding: 0 20px; }
  .about-stats { grid-template-columns: 1fr 1fr; gap: 20px 16px; }
  .stat .n { font-size: 40px; }
  .hero .ctas { flex-direction: column; }
  .hero .ctas .btn { width: 100%; justify-content: center; }
}