/* ===================== RESET ===================== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Lato', sans-serif;
  background: #00367B;
  color: #e0e0e0;
  overflow-x: hidden;
}

/* ===================== CONTENT SECTIONS ===================== */
.content {
  position: relative;
  z-index: 5;
}

.section {
  padding: 80px 24px;
  max-width: 960px;
  margin: 0 auto;
}

.section--full {
  max-width: 100%;
  padding: 0;
}

.section__eyebrow {
  font-family: 'Bungee', cursive;
  font-size: 14px;
  color: #BB3EFD;
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section__title {
  font-family: 'Bungee', cursive;
  font-size: 40px;
  color: #f5ee1d;
  text-shadow: 2px -2px 0 #BB3EFD;
  margin-bottom: 24px;
  line-height: 1.15;
}

.section__text {
  font-size: 18px;
  line-height: 1.7;
  color: #c0c0c0;
  margin-bottom: 20px;
}

/* Divider */
.divider {
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  height: 1px;
  background: linear-gradient(90deg, transparent, #BB3EFD, #f5ee1d, #BB3EFD, transparent);
}

/* ===================== BUTTONS ===================== */
.btn {
  display: inline-block;
  padding: 14px 36px;
  font-family: 'Bungee', cursive;
  font-size: 16px;
  text-decoration: none;
  border-radius: 8px;
  transition: transform 0.2s, box-shadow 0.2s;
  cursor: pointer;
  border: none;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(187, 62, 253, 0.4);
}

.btn--primary {
  background: #f5ee1d;
  color: #00367B;
}

.btn--outline {
  background: transparent;
  color: #f5ee1d;
  border: 2px solid #f5ee1d;
}

.btn--vibrant {
  display: inline-block;
  margin-top: 32px;
  padding: 16px 40px;
  font-family: 'Bungee', cursive;
  font-size: 24px;
  color: #fff;
  text-decoration: none;
  border: none;
  border-radius: 10px;
  background: linear-gradient(135deg, #BB3EFD 0%, #f5ee1d 50%, #BB3EFD 100%);
  background-size: 200% 200%;
  animation: shimmer 3s ease-in-out infinite;
  box-shadow: 0 4px 20px rgba(187, 62, 253, 0.5), 0 0 40px rgba(245, 238, 29, 0.2);
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
}

.btn--vibrant:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 8px 30px rgba(187, 62, 253, 0.6), 0 0 60px rgba(245, 238, 29, 0.3);
}

@keyframes shimmer {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* ===================== SPEAKERS ===================== */
.speakers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 28px;
  margin-top: 36px;
}

.speaker-card {
  background: #002a63;
  border: 1px solid #1a4a8a;
  border-radius: 12px;
  padding: 28px 20px;
  text-align: center;
  transition: border-color 0.3s, transform 0.3s;
  cursor: pointer;
}

.speaker-card:hover {
  border-color: #BB3EFD;
  transform: translateY(-4px);
}

.speaker-card__avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, #BB3EFD, #f5ee1d);
  background-size: cover;
  background-position: center;
  margin: 0 auto 16px;
}

.speaker-card__name {
  font-family: 'Bungee', cursive;
  font-size: 16px;
  color: #f5ee1d;
  margin-bottom: 6px;
}

.speaker-card__role {
  font-size: 14px;
  color: #a0c4e8;
}

/* ===================== SPEAKER OVERLAY ===================== */
.speaker-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  opacity: 0;
}

.speaker-overlay.active {
  pointer-events: auto;
  opacity: 1;
}

/* Blur backdrop */
.speaker-overlay::before {
  content: '';
  position: absolute;
  inset: 0;
  backdrop-filter: blur(0px);
  background: rgba(0, 20, 50, 0);
  transition: backdrop-filter 0.5s ease, background 0.5s ease;
}

.speaker-overlay.active::before {
  backdrop-filter: blur(12px);
  background: rgba(0, 20, 50, 0.6);
}

/* Yellow line that expands */
.speaker-overlay__line {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 0;
  height: 3px;
  background: #FFFB10;
  z-index: 2;
  transition: width 0.35s cubic-bezier(0.22, 1, 0.36, 1);
  box-shadow: 0 0 20px rgba(255, 251, 16, 0.5);
}

.speaker-overlay.step-line .speaker-overlay__line {
  width: min(600px, 90vw);
}

/* The panel */
.speaker-overlay__panel {
  position: relative;
  z-index: 3;
  background: #001a3d;
  border: 2px solid #FFFB10;
  border-radius: 16px;
  width: min(520px, 90vw);
  max-height: 80vh;
  overflow-y: auto;
  padding: 48px 36px 36px;
  text-align: center;
  transform: scaleY(0);
  opacity: 0;
  transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.3s ease;
}

.speaker-overlay.step-panel .speaker-overlay__panel {
  transform: scaleY(1);
  opacity: 1;
}

.speaker-overlay.step-panel .speaker-overlay__line {
  opacity: 0;
  transition: opacity 0.2s ease;
}

/* Close button */
.speaker-overlay__close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 2px solid #a0c4e8;
  background: transparent;
  color: #a0c4e8;
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}

.speaker-overlay__close:hover {
  border-color: #FFFB10;
  color: #FFFB10;
  background: rgba(255, 251, 16, 0.1);
}

/* Avatar */
.speaker-overlay__avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: linear-gradient(135deg, #BB3EFD, #f5ee1d);
  background-size: cover;
  background-position: center;
  margin: 0 auto 20px;
  border: 3px solid #FFFB10;
}

/* Name */
.speaker-overlay__name {
  font-family: 'Bungee', cursive;
  font-size: 24px;
  color: #f5ee1d;
  text-shadow: 2px 2px 0 #BB3EFD;
  margin-bottom: 12px;
}

/* Socials row */
.speaker-overlay__socials {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 20px;
}

.speaker-overlay__socials a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(187, 62, 253, 0.2);
  border: 1px solid #BB3EFD;
  transition: background 0.2s, transform 0.2s;
}

.speaker-overlay__socials a:hover {
  background: rgba(187, 62, 253, 0.5);
  transform: scale(1.1);
}

.speaker-overlay__socials a svg {
  width: 18px;
  height: 18px;
  fill: #f5ee1d;
}

/* Bio */
.speaker-overlay__bio {
  font-size: 15px;
  line-height: 1.7;
  color: #c0d8f0;
}

/* ===================== SCROLL REVEAL ===================== */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===================== ROBOT MASCOT ===================== */
.robot-mascot {
  position: fixed;
  bottom: -3%;
  right: 0;
  width: 24vw;
  min-width: 168px;
  max-width: 384px;
  z-index: 50;
  transform: translateX(110%);
  transition: transform 1.8s cubic-bezier(0.25, 1, 0.5, 1);
}

.robot-mascot.entered {
  transform: translateX(11.67%);
}

.robot-mascot__rig {
  position: relative;
  width: 100%;
  transform-origin: 60.85% 98.7%;
}

.robot-mascot__body {
  display: block;
  width: 100%;
  height: auto;
}

.robot-mascot__arm {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: auto;
  transform-origin: 34.0% 74.2%;
}

/* ===================== BOTTOM CHARACTERS ===================== */
.bottom-characters {
  position: fixed;
  bottom: 0;
  left: 30px;
  z-index: 1;
  display: flex;
  align-items: flex-end;
  pointer-events: none;
  transform: translateY(110%);
  transition: transform 1.8s cubic-bezier(0.25, 1, 0.5, 1);
}

.bottom-characters.entered {
  transform: translateY(0);
}

.bottom-char {
  width: 10vw;
  min-width: 70px;
  max-width: 160px;
}

.bottom-char[data-char="1"] {
  width: 6vw;
  min-width: 42px;
  max-width: 96px;
}

.bottom-char img {
  display: block;
  width: 100%;
  height: auto;
  transform-origin: 50% 10%;
}

/* ===================== SKYLINE ===================== */
.skyline {
  position: fixed;
  bottom: 0;
  right: 0;
  width: 28.8vw;
  min-width: 201.6px;
  max-width: 460.8px;
  z-index: 1;
  pointer-events: none;
  transform: translateY(110%);
  transition: transform 1.8s cubic-bezier(0.25, 1, 0.5, 1);
}

.skyline.entered {
  transform: translateY(0);
}

.skyline img {
  display: block;
  width: 100%;
  height: auto;
}

/* ===================== FOOTER ===================== */
footer {
  text-align: center;
  padding: 48px 24px;
  color: #8ab4e0;
  font-size: 18px;
  line-height: 1.8;
  max-width: 768px;
  margin: 0 auto;
}

footer a {
  color: #BB3EFD;
  text-decoration: none;
}

footer .footer-detail {
  font-size: 0.7em;
  line-height: 1.4;
}

footer .footer-credit {
  white-space: nowrap;
}

/* ===================== RESPONSIVE (shared components) ===================== */
@media (max-width: 768px) {
  .section__title {
    font-size: 28px;
  }
  footer .footer-credits-line {
    display: flex;
    flex-direction: column;
    gap: 0;
  }
}