/* RESET */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Segoe UI", sans-serif;
}

body {
  background: #05070d;
  color: #fff;
}

/* ================= HERO (RESTORED ALIGNMENT) ================= */

.hero {
  position: relative;
  height: 100vh;
  width: 100%;
  overflow: hidden;

  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
}

/* VIDEO */
.hero-video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* OVERLAY */
.hero-overlay {
  position: absolute;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    180deg,
    rgba(0,0,0,0.6),
    rgba(5,7,13,1)
  );
}

/* CONTENT WRAPPER */
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
  padding: 0 20px;
}

/* LOGO - BACK INSIDE FLOW (NOT ABSOLUTE) */
.hero-logo {
  width: 400px;
  margin-bottom: 20px;
  opacity: 0.95;
}

/* TITLE */
.hero h1 {
  font-size: 70px;
  line-height: 1.1;
}

.hero h1 span {
  color: #00bfff;
}

/* TEXT */
.tagline {
  color: #00bfff;
  margin-bottom: 10px;
}

.theme {
  margin: 20px auto;
  max-width: 600px;
  color: #cfd6e0;
}

.details {
  color: #aaa;
}

/* ================= INTRO (LIGHT + LEFT ALIGNED) ================= */

.intro-section {
  min-height: 100vh;

  display: flex;
  align-items: center;
  justify-content: flex-start;

  padding: 80px 8%;
  background: linear-gradient(to bottom, #ffffff, #f5f7fb);
}

/* CONTAINER */
.intro-container {
  max-width: 750px;
  text-align: left;
}

/* HEADING */
.intro-section h2 {
  font-size: 42px;
  font-weight: 700;
  margin-bottom: 20px;
  color: #0b3d91;
  line-height: 1.3;
}

/* ACCENT LINE */
.intro-section h2::after {
  content: "";
  display: block;
  width: 70px;
  height: 3px;
  margin: 14px 0 0;   /* left aligned */
  border-radius: 2px;

  background: linear-gradient(90deg, #0b3d91, #00bfff);
}

/* PARAGRAPH */
.intro-section p {
  font-size: 17px;
  line-height: 1.8;
  color: #4a5568;
}

/* OPTIONAL HIGHLIGHT */
.intro-section p strong {
  color: #0b3d91;
  font-weight: 600;
}

/* SUBTLE ENTRY */
.intro-container {
  animation: fadeLeft 0.8s ease forwards;
}

@keyframes fadeLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .intro-section {
    justify-content: center;
  }

  .intro-container {
    text-align: center;
  }

  .intro-section h2::after {
    margin: 14px auto 0;
  }
}

/* ================= VIDEO ================= */

.video-section {
  padding: 100px 8%;
  text-align: center;
  background: radial-gradient(circle at top, #0b3d91, #05070d);
}

.video-section h2 {
  font-size: 42px;
  margin-bottom: 40px;
}

.video-wrapper {
  display: flex;
  justify-content: center;
}

.video-frame {
  padding: 10px;
  border-radius: 16px;
  background: linear-gradient(135deg, #00bfff, transparent);
  box-shadow: 0 0 30px rgba(0,191,255,0.4);
  max-width: 1000px;
  width: 100%;
}

.video-frame video {
  width: 100%;
  border-radius: 10px;
}

/* ================= DAY 1 ================= */

/* SECTION */
.day1-section {
  background: #f8fafc;
  padding: 100px 8%;
  color: #1a1a1a;
}

/* CONTAINER */
.day1-container {
  max-width: 1100px;
  margin: 0 auto;
}

/* HEADER */
.day1-header {
  text-align: center;
  margin-bottom: 40px;
}

.day1-header h2 {
  font-size: 42px;
  color: #0b3d91;
}

.day1-subtitle {
  color: #0077cc;
  font-size: 18px;
  margin-top: 8px;
}

/* INTRO */
.day1-intro {
  max-width: 850px;
  margin: 0 auto 60px;
  text-align: center;
  line-height: 1.7;
  color: #4a5568;
}

/* CARD */
.day1-card {
  background: #fff;
  padding: 30px;
  border-radius: 12px;
  margin-bottom: 40px;

  border: 1px solid #e2e8f0;
  box-shadow: 0 6px 20px rgba(0,0,0,0.05);
}

/* CARD TITLE */
.day1-card h3 {
  font-size: 24px;
  margin-bottom: 15px;
  color: #0b3d91;
}

/* VIP LIST */
.vip-list {
  padding-left: 18px;
  margin: 15px 0;
}

.vip-list li {
  margin-bottom: 8px;
  font-weight: 500;
  color: #2d3748;
}

/* DISCUSSION GRID */
.discussion-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 20px;
}

.discussion-item {
  background: #f1f6ff;
  padding: 15px;
  border-radius: 8px;
}

.discussion-item h4 {
  font-size: 16px;
  margin-bottom: 5px;
  color: #0b3d91;
}

.discussion-item p {
  font-size: 14px;
  color: #4a5568;
}

/* NOTE */
.note {
  margin-top: 20px;
  font-size: 14px;
  color: #4a5568;
}

/* HIGHLIGHT */
.day1-highlight {
  background: #eaf2ff;
  padding: 30px;
  border-left: 4px solid #0077cc;
  border-radius: 6px;
  text-align: center;
  font-style: italic;
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .discussion-grid {
    grid-template-columns: 1fr;
  }
}
/* ================= GALLERY (DARK THEME) ================= */

.basic-gallery {
  padding: 80px 8%;
  background: linear-gradient(to bottom, #05070d, #0b3d91);
}

.gallery-container {
  max-width: 1200px;
  margin: 0 auto;
}

.gallery-container h2 {
  font-size: 36px;
  margin-bottom: 40px;
  text-align: center;
  color: #ffffff;
}

/* GRID */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
}

/* CARD */
.gallery-item {
  background: rgba(255, 255, 255, 0.04);
  padding: 10px;
  border-radius: 12px;

  display: flex;
  justify-content: center;
  align-items: center;

  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);

  transition: 0.3s ease;
}

/* HOVER (important for depth) */
.gallery-item:hover {
  transform: translateY(-5px);
  border-color: #00bfff;
  box-shadow: 0 10px 30px rgba(0, 191, 255, 0.2);
}

/* IMAGE */
.gallery-item img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: 6px;
}

/* RESPONSIVE */
@media (max-width: 1024px) {
  .gallery-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 600px) {
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ================= EXHIBITION SECTION ================= */

.exhibition-section {
  padding: 100px 8%;
  background: #ffffff;
  text-align: center;
  color: #1a1a1a;
}

.exhibition-container {
  max-width: 1200px;
  margin: 0 auto;
}

/* HEADER */
.exhibition-section h2 {
  font-size: 42px;
  margin-bottom: 10px;
  color: #0b3d91;
}

.exhibition-subtitle {
  color: #4a5568;
  margin-bottom: 60px;
}

/* BLOCK */
.exhibition-block {
  margin-bottom: 70px;
}

.exhibition-block h3 {
  font-size: 22px;
  margin-bottom: 25px;
  color: #0b3d91;
}

/* GRID (reuse style) */
.exhibition-section .gallery-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
}

/* LOGO CARDS */
.exhibition-section .gallery-item {
  background: #ffffff;
  height: 110px;

  display: flex;
  justify-content: center;
  align-items: center;

  border-radius: 12px;
  border: 1px solid #e2e8f0;

  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
  transition: 0.3s ease;
}

.exhibition-section .gallery-item img {
  max-height: 70px;
  max-width: 100%;
  object-fit: contain;
}

/* HOVER */
.exhibition-section .gallery-item:hover {
  transform: translateY(-5px);
  border-color: #0b3d91;
  box-shadow: 0 8px 25px rgba(0,0,0,0.1);
}

/* VIDEO */
.video-wrapper {
  display: flex;
  justify-content: center;
}

.video-frame {
  max-width: 900px;
  width: 100%;
  padding: 10px;
  border-radius: 14px;
  background: #f1f6ff;
  border: 1px solid #e2e8f0;
}

.video-frame video {
  width: 100%;
  border-radius: 10px;
}

/* IMAGE GALLERY (override for photos) */
.exhibition-gallery .gallery-item {
  height: 200px;
  padding: 0;
}

.exhibition-gallery .gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* RESPONSIVE */
@media (max-width: 1024px) {
  .exhibition-section .gallery-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 600px) {
  .exhibition-section .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ================= PUBLICATIONS ================= */

.publications-section {
  padding: 100px 8%;
  background: linear-gradient(to bottom, #05070d, #0b3d91);
  color: #fff;
}

.publications-container {
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}

/* HEADER */
.publications-container h2 {
  font-size: 42px;
  margin-bottom: 10px;
}

.pub-subtitle {
  color: #cfd6e0;
  margin-bottom: 60px;
}

/* GRID */
.pub-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

/* CARD */
.pub-card {
  display: flex;
  flex-direction: column;   /* IMPORTANT for structure */

  background: rgba(255,255,255,0.05);
  border-radius: 14px;
  overflow: hidden;
  text-decoration: none;
  color: #fff;

  border: 1px solid rgba(255,255,255,0.08);
  transition: 0.3s ease;
}

/* HOVER */
.pub-card:hover {
  transform: translateY(-8px);
  border-color: #00bfff;
  box-shadow: 0 12px 35px rgba(0,191,255,0.2);
}

/* IMAGE CONTAINER */
.pub-image {
  height: 260px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

/* IMAGE */
.pub-image img {
  max-height: 100%;
  max-width: 100%;
  object-fit: contain;
}

/* CONTENT */
.pub-content {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* TITLE */
.pub-content h3 {
  font-size: 18px;
  color: #ffffff;
}

/* SYNOPSIS */
.pub-synopsis {
  font-size: 14px;
  line-height: 1.6;
  color: #cfd6e0;
}

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

@media (max-width: 600px) {
  .pub-grid {
    grid-template-columns: 1fr;
  }
}

/* ================= THANK YOU SECTION (LIGHT) ================= */

.thanks-section {
  padding: 100px 8%;
  background: #f8fafc;
  text-align: center;
  color: #1a1a1a;
}

.thanks-container {
  max-width: 1200px;
  margin: 0 auto;
}

/* HEADER */
.thanks-section h2 {
  font-size: 42px;
  margin-bottom: 10px;
  color: #0b3d91;
}

.thanks-subtitle {
  color: #4a5568;
  margin-bottom: 60px;
  font-size: 16px;
}

/* BLOCK */
.thanks-block {
  margin-bottom: 60px;
}

.thanks-block h3 {
  font-size: 22px;
  margin-bottom: 25px;
  color: #0b3d91;
}

/* GRID */
.thanks-section .gallery-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
}

/* CARD */
.thanks-section .gallery-item {
  background: #ffffff;
  height: 110px;

  display: flex;
  justify-content: center;
  align-items: center;

  border-radius: 12px;
  border: 1px solid #e2e8f0;

  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
  transition: 0.3s ease;
}

/* LOGO IMAGE */
.thanks-section .gallery-item img {
  max-height: 60px;
  max-width: 100%;
  object-fit: contain;

  filter: grayscale(100%);
  opacity: 0.7;

  transition: 0.3s ease;
}

/* HOVER */
.thanks-section .gallery-item:hover {
  transform: translateY(-5px);
  border-color: #0b3d91;
  box-shadow: 0 8px 25px rgba(0,0,0,0.1);
}

.thanks-section .gallery-item:hover img {
  filter: none;
  opacity: 1;
  transform: scale(1.05);
}

/* RESPONSIVE */
@media (max-width: 1024px) {
  .thanks-section .gallery-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 600px) {
  .thanks-section .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ================= CARDS ================= */

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px,1fr));
  gap: 20px;
  padding: 60px 8%;
}

.card {
  padding: 30px;
  border-radius: 10px;
  background: linear-gradient(145deg, #0b3d91, #000);
  text-align: center;
  transition: 0.3s;
}

.card:hover {
  transform: translateY(-5px);
}

/* ================= FINAL THANK YOU ================= */

.final-thanks {
  padding: 120px 8%;
  background: radial-gradient(circle at top, #0b3d91, #05070d);
  text-align: center;
  color: #ffffff;
}

/* CONTAINER */
.final-thanks-container {
  max-width: 900px;
  margin: 0 auto;
}

/* HEADING */
.thanks-heading {
  font-size: 64px;
  margin-bottom: 30px;
  font-weight: 800;
  letter-spacing: 1px;
}

/* YELLOW EMPHASIS */
.thanks-heading span {
  color: #ffd700; /* yellow */
  text-shadow: 0 0 20px rgba(255, 215, 0, 0.4);
}

/* MESSAGE */
.thanks-message {
  font-size: 17px;
  line-height: 1.8;
  color: #cfd6e0;
  margin-bottom: 20px;
}

/* CLOSING LINE */
.closing-line {
  margin-top: 40px;
  font-size: 22px;
  font-weight: 600;
  color: #ffffff;
}

/* HIGHLIGHT YEAR */
.closing-line strong {
  color: #ffd700;
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .thanks-heading {
    font-size: 42px;
  }

  .thanks-message {
    font-size: 15px;
  }
}

/* ================= FOOTER ================= */

footer {
  text-align: center;
  padding: 20px;
  background: #000;
}