* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 110px;
}

body {
  margin: 0;
  padding-top: 88px;
  font-family: "Segoe UI", Arial, sans-serif;
  color: #2b2b2b;
  line-height: 1.7;
  background: #ffffff;
}

/* Navbar */

.navbar {
  background: #d35400;
  color: white;
  padding: 16px 7%;
  display: flex;
  justify-content: space-between;
  align-items: center;

  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 9999;

  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.12);
}

.logo {
  background: white;
  color: #d35400;
  font-weight: 800;
  padding: 8px 14px;
  border-radius: 6px;
  font-size: 22px;
}

.navbar ul {
  display: flex;
  gap: 22px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.navbar li {
  list-style: none;
}

.navbar a {
  color: white;
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
}

.navbar a:hover {
  color: #ffe0b2;
}

/* Hero */

.hero {
  min-height: 18vh;
  background:
    linear-gradient(rgba(211, 84, 0, 0.88), rgba(230, 126, 34, 0.82)),
    url("https://images.unsplash.com/photo-1517048676732-d65bc937f952?auto=format&fit=crop&w=1600&q=80");
  background-size: cover;
  background-position: center;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 20px 20px;
}

.hero-content {
  max-width: 1550px;
}

.tagline {
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-weight: 800;
  color: #fff3cd;
}

.hero h1 {
  font-size: 52px;
  line-height: 1.15;
  margin: 12px 0;
}

.hero h2 {
  font-size: 34px;
  margin: 8px 0 20px;
}

.hero p {
  font-size: 20px;
  max-width: 800px;
  margin: auto;
}

.btn {
  display: inline-block;
  margin-top: 10px;
  background: white;
  color: #d35400;
  padding: 13px 28px;
  text-decoration: none;
  font-weight: 800;
  border-radius: 6px;
}

/* General Sections */

.section {
  padding: 15px 8% 75px;
  text-align: center;
}

.section h2,
.contact h2 {
  color: #d35400;
  font-size: 34px;
  margin-bottom: 20px;
}

.section p {
  max-width: 950px;
  margin: 14px auto;
  font-size: 17px;
}

.orange-light {
  background: #fff3e6;
}

/* Cards */

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 25px;
  margin-top: 35px;
}

.card {
  background: white;
  padding: 28px;
  border-radius: 14px;
  box-shadow: 0 10px 28px rgba(211, 84, 0, 0.12);
  border-top: 5px solid #e67e22;
  text-align: left;
}

.card h3 {
  color: #d35400;
  margin-top: 0;
}

.card p {
  font-size: 16px;
}

#cfp p {
  text-align: justify;
  max-width: 1100px;
  margin: 18px auto;
  line-height: 1.9;
}
#about p {
  text-align: justify;
  max-width: 1100px;
  margin: 18px auto;
  line-height: 1.9;
}

/* Important Dates */

.timeline {
  max-width: 1000px;
  margin: 35px auto 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.timeline div {
  background: #fff3e6;
  padding: 10px;
  border-left: 5px solid #d35400;
  border-radius: 10px;
  text-align: left;
}

.timeline strong {
  display: block;
  color: #d35400;
  font-size: 17px;
}

.timeline span {
  color: #555;
}

/* Tracks */

.track-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 35px;
}

.track-grid span {
  background: #fff3e6;
  color: #d35400;
  padding: 15px;
  border-radius: 8px;
  font-weight: 700;
}

/* Instructions List */

.list {
  max-width: 900px;
  margin: 25px auto 0;
  text-align: left;
  font-size: 17px;
}

.list li {
  margin-bottom: 12px;
}

/* Registration Section */

.registration-intro {
  max-width: 950px;
  margin: 10px auto 45px;
}

.registration-wrapper {
  max-width: 1250px;
  margin: auto;

  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 35px;
  align-items: start;
}

.registration-left,
.registration-right {
  background: #ffffff;
  padding: 30px;
  border-radius: 14px;
  border-top: 5px solid #d35400;
  box-shadow: 0 10px 28px rgba(211, 84, 0, 0.12);
}

.registration-left {
  text-align: left;
}

.registration-right {
  text-align: center;
}

.registration-left h3,
.registration-right h3 {
  margin-top: 0;
  margin-bottom: 24px;
  color: #d35400;
  font-size: 24px;
}

.registration-table {
  width: 100%;
  border-collapse: collapse;
}

.registration-table th {
  background: #d35400;
  color: white;
  padding: 15px;
  text-align: left;
  font-size: 15px;
}

.registration-table td {
  padding: 15px;
  border-bottom: 1px solid #f3d2bb;
  font-size: 15px;
}

.registration-table tr:nth-child(even) {
  background: #fff3e6;
}

.registration-note {
  margin-top: 24px;
  font-size: 15.5px;
  color: #444;
  line-height: 1.7;
}

.qr-container {
  margin-bottom: 28px;
}

.qr-container img {
  width: 240px;
  height: 240px;
  object-fit: contain;
  padding: 12px;
  border-radius: 12px;
  border: 2px dashed #d35400;
  background: #fff3e6;
}

.bank-box {
  background: #fff3e6;
  padding: 20px;
  border-radius: 10px;
  text-align: left;
}

.bank-box p {
  margin: 0 0 16px 0;
  font-size: 15px;
  line-height: 1.6;
  color: #333;
}

/* Organizing Committee */

#committee {
  background: #ffffff;
}

#committee > p {
  max-width: 950px;
  margin: 14px auto 40px;
  text-align: center;
  font-size: 17px;
}

.committee-grid {
  max-width: 1250px;
  margin: 40px auto 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.committee-card {
  background: #ffffff;
  padding: 30px;
  border-radius: 14px;
  border-top: 5px solid #d35400;
  box-shadow: 0 10px 28px rgba(211, 84, 0, 0.12);
  text-align: left;
  transition: 0.3s ease;
}

.committee-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 34px rgba(211, 84, 0, 0.18);
}

.committee-card h3 {
  color: #d35400;
  margin-top: 0;
  margin-bottom: 20px;
  font-size: 21px;
}

.committee-card p {
  margin: 0 0 16px 0;
  color: #444;
  line-height: 1.75;
  font-size: 15.5px;
  text-align: left;
}

.committee-card ul {
  margin: 0;
  padding: 0;
}

.committee-card li {
  list-style: none;
  margin: 0 0 14px 0;
  padding: 0;
  font-size: 15.5px;
  line-height: 1.7;
  color: #444;
}

/* CFP Buttons */

.cfp-buttons {
  margin-top: 55px;
  display: flex;
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
}

.cfp-buttons a {
  display: inline-block;
  background: #d35400;
  color: #ffffff;
  padding: 14px 28px;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 700;
}

.cfp-buttons a:last-child {
  background: #8e2c00;
}

/* Contact */

.contact {
  background: #d35400;
  color: white;
  padding: 65px 20px;
  text-align: center;
}

.contact h2 {
  color: white;
}

.contact p {
  font-size: 17px;
}

/* Footer */

footer {
  background: #a04000;
  color: white;
  text-align: center;
  padding: 20px;
}

/* Responsive */

@media (max-width: 1200px) {
  .navbar {
    flex-direction: column;
    gap: 15px;
    padding: 14px 5%;
  }

  body {
    padding-top: 135px;
  }

  .navbar ul {
    flex-wrap: wrap;
    justify-content: center;
    gap: 14px;
  }

  .hero h1 {
    font-size: 42px;
  }

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

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

  .registration-wrapper {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 700px) {
  body {
    padding-top: 175px;
  }

  .hero {
    min-height: auto;
    padding: 80px 18px;
  }

  .hero h1 {
    font-size: 32px;
  }

  .hero h2 {
    font-size: 26px;
  }

  .hero p {
    font-size: 17px;
  }

  .section {
    padding: 60px 18px;
  }

  .section h2,
  .contact h2 {
    font-size: 29px;
  }

  .cards,
  .track-grid,
  .committee-grid {
    grid-template-columns: 1fr;
  }

  .registration-table {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
  }

  .qr-container img {
    width: 200px;
    height: 200px;
  }
}