* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
  font-family: "Roboto", Arial, sans-serif;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  background-image: url('../images/website-bg.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-attachment: fixed;
}

.mobile-upi-btn {
  display: none;
}

.top-bar {
  padding: 12px 4vw;
  background-color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  z-index: 1000;
  position: sticky;
  top: 0;
}

.top-left-logo img {
  max-height: 70px;
  height: auto;
}

/* ===== NAVIGATION ===== */
.nav-links {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 0;
  padding: 0;
}

.nav-links li a {
  display: inline-block;
  padding: 8px 16px;
  font-size: 14.5px;
  font-weight: 500;
  color: #1a3066;
  text-decoration: none;
  border-radius: 4px;
  transition: background 0.2s ease, color 0.2s ease;
  white-space: nowrap;
}

.nav-links li a:hover {
  background-color: #1a3066;
  color: #ffffff;
}

.nav-links li a.register-nav-btn {
  background-color: #e31c48;
  color: #ffffff;
  font-weight: 600;
  padding: 9px 20px;
  border-radius: 4px;
  letter-spacing: 0.03em;
}

.nav-links li a.register-nav-btn:hover {
  background-color: #c0143a;
  color: #ffffff;
}

/* Mobile menu toggle button – hidden on desktop */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 22px;
  color: #1a3066;
  cursor: pointer;
  padding: 4px 8px;
  z-index: 1100;
}

/* Overlay */
.menu-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  z-index: 1050;
  transition: opacity 0.3s ease;
}

.menu-overlay.active {
  display: block;
}

/* ===== Mobile Styles ===== */
@media (max-width: 991.98px) {
  .mobile-menu-toggle {
    display: block;
  }

  .main-nav {
    position: fixed;
    top: 0;
    left: -100%;
    width: 80%;
    max-width: 300px;
    height: 100vh;
    background: #ffffff;
    z-index: 1100;
    display: flex;
    flex-direction: column;
    transition: left 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 4px 0 20px rgba(0, 0, 0, 0.15);
    overflow-y: auto;
  }

  .main-nav.open {
    left: 0;
  }

  /* Header inside the slide-in panel */
  .mobile-menu-header {
    display: flex !important;
    align-items: center;
    justify-content: space-between;
    padding: 16px 18px;
    border-bottom: 1px solid #e8e8e8;
    background-color: #1a3066;
  }

  .mobile-menu-logo {
    max-height: 45px;
    /* invert logo to white on dark bg; remove if logo already suits */
    filter: brightness(0) invert(1);
  }

  .close-menu-btn {
    background: none;
    border: none;
    font-size: 22px;
    color: #ffffff;
    cursor: pointer;
    padding: 4px;
  }

  .nav-links {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 12px 0;
  }

  .nav-links li a {
    display: block;
    padding: 14px 22px;
    font-size: 16px;
    border-radius: 0;
    border-bottom: 1px solid #f0f0f0;
    color: #1a3066;
  }

  .nav-links li a:hover {
    background-color: #f0f4ff;
    color: #1a3066;
  }

  .nav-links li:last-child a.register-nav-btn {
    margin: 16px 18px;
    border-radius: 6px;
    text-align: center;
    border-bottom: none;
  }

  .nav-links li:last-child a.register-nav-btn:hover {
    background-color: #c0143a;
  }
}

.hero-img-wrapper {
  position: relative;
}
.register-side-btn {
  position: fixed;
  right: 20px;
  top: 34%;
  transform: translateY(-50%) rotate(-90deg);
  transform-origin: right center;

  background: #1a3066; 
  color: #fff;
  padding: 12px 90px;
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.5px;
  text-decoration: none;

  border-radius: 8px 8px 0 0;
  box-shadow: 0 8px 20px rgba(0,0,0,0.25);
  z-index: 9999;
}

.register-side-btn:hover {
  background: #e31c48;
  color: #fff;
}

.hero-section {
  position: relative;
  overflow: hidden;
}

.hero-info-overlay {
  padding: 20px 0 10px;
  border-top: 3px solid #e8e8e8;
}

.hero-info-main span{
  color: #1a3066;
  font-weight: 600;
}
.hero-info-main p {
  font-size: 25px;
  margin-bottom: 6px;
  text-align: center;
}

.hero-info-main strong {
  color: #1a3066;
  font-weight: 700;
}

.hero-divider {
    width: 80%;
    border: 0;
    border-top: 2px solid #333;
    margin: 15px auto;
    opacity: 1;
}

.hero-info-pre {
  text-align: center;
  padding-bottom: 10px;
}

.hero-pre-label {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 4px;
}

.hero-pre-title {
  font-size: 38px !important;
  font-weight: 400;
  color: #1a3066;
  margin-bottom: 6px;
  letter-spacing: 0.02em;
}

.hero-info-pre p {
  font-size: 24px;
  margin-bottom: 4px;
}

.hero-info-pre strong {
  font-weight: 700;
  color: #1a3066;
}

.welcome-section {
  padding: 30px 0;
}

.welcome-container {
  max-width: 84%;
}

.welcome-title {
  color: #4B63AF;
  font-size: 36px;
  font-weight: 300; 
  margin-bottom: 30px;
}

.welcome-content {
  color: #333333;
  line-height: 1.6;
  font-size: 18px;
  text-align: justify;
}

.welcome-content p {
  margin-bottom: 20px;
}

.signature-block {
  margin-top: 50px;
}

.signature-details {
  line-height: 1.3;
}

.signature-details p {
  margin-bottom: 2px;
}

.signature-details p strong {
  color: #333333;
  font-size: 18px;
}

.form-control, .form-select{
  padding: 10px 12px !important;
}

.text-block h3 {
  color: #183661;
  font-size: 40px;
  font-weight: 700;
  margin: 0 0 4px;
}

.text-block h4 {
  font-size: 28px;
  color: #183661;
  font-weight: 500;
  margin: 0 0 6px;
}

.text-block p {
  margin: 0;
  color: #606969;
  font-size: 18px;
}

.schedule-wrapper1 {
  max-width: 84%;
  margin: 30px auto;
  background-color: #ffffff;
  padding: 20px 25px 30px;
}

.schedule-wrapper {
  max-width: 84%;
  margin: 30px auto;
  background-color: #ffffff;
  padding: 20px 25px 30px;
}

.day-header {
  background-color: #1a3066;
  color: #ffffff;
  padding: 6px 35px;
  font-weight: 600;
  font-size: 14px;
  display: inline-block;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.session-subtitle {
  font-size: 16px;
  margin-bottom: 15px;
}

.session-subtitle strong {
  font-weight: 600;
}

.table-schedule {
  border-collapse: collapse;
  width: 100%;
  font-size: 13px;
}

.table-schedule th{
  border: 2px solid #175098;
  font-size: 16px;
  padding: 8px 10px;
  vertical-align: top;
}
.table-schedule td {
  border: 2px solid #175098;
  font-size: 16px;
  padding: 8px 10px;
  vertical-align: top;
}

.table-schedule thead th {
  background-color: #6190c3;
  color: #ffffff;
  text-align: center;
  font-weight: 600;
}

.table-schedule tbody td:first-child {
  width: 6%;
  white-space: nowrap;
  text-align: start !important;
}

.table-schedule tbody td:nth-child(2) {
  width: 30%;
}

.table-schedule tbody td:nth-child(3) {
  width: 15%;
}

.table-schedule tbody td:nth-child(4) {
  width: 30%;
}

.table-schedule tbody td:nth-child(5) {
  width: 14%;
}

.break-row td {
  background-color: #e1f7fe;
  font-weight: 600;
  text-align: center;
  color: #1a3066;
}

.event-section {
  /* background: url("../images/WhiteAbstract.jpg") center center / cover no-repeat fixed; */
  padding: 0px 15px;
}

.section-title {
  background-color: #18427A;
  color: #ffffff;
  padding: 10px 30px;
  font-size: 24px;
  font-weight: 600;
  letter-spacing: 0.05em;
  box-shadow: 0 10px 10px rgba(0, 0, 0, 0.25);
  margin-bottom: 30px;
}

.person-photo {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid #1a3066;
  margin-bottom: 15px;
  padding: 2px;
}

.person-name {
  font-weight: 700;
  color: #1a3066;
  margin-bottom: 5px;
}

.person-title {
  font-size: 16px;
  color: #78797E;
  font-weight: 500;
  margin-bottom: 0;
  line-height: 1.6;
}

.registration-section {
  padding: 30px 15px 0;
}

.registration-title {
  background-color: #1a3066;
  color: #ffffff;
  padding: 12px 30px;
  font-size: 30px;
  font-weight: 400;
  letter-spacing: 0.25em;
  margin-bottom: 10px;
  text-align: center;
  text-transform: uppercase;
}

.registration-fee-table {
  background-color: #F8C451;
  display: flex;
  align-items: stretch;
  margin-bottom: 40px;
  border: 1px solid #e0a82e;
}

.registration-fee-table .fee-column {
  flex: 1;
  padding: 25px 30px;
}

.registration-fee-table .fee-divider {
  width: 2px;
  background-color: #333;
  align-self: stretch;
}

.registration-fee-table .fee-heading {
  font-size: 20px;
  color: #222;
  margin-bottom: 8px;
}

.registration-fee-table .fee-detail {
  font-size: 18px;
  color: #333;
  margin-bottom: 4px;
}

@media (max-width: 575.98px) {
.programme-title-strip {
  font-size: 14px !important;
  letter-spacing: 0.1em !important;
}
.hero-info-main p {
  font-size: 15px;
}
.session-type {
  font-size: 20px !important;
}
.session-topic {
  font-size: 17px !important;
}
.session-speaker {
  font-size: 15px !important;
}
.registration-title {
    font-size: 22px;
}
  .hero-pre-title {
    font-size: 20px;
  }
  .hero-info-pre p {
    font-size: 15px;
  }
  .hero-pre-title {
    font-size: 16px !important;
  }
  .welcome-content {
    line-height: 1.5;
    font-size: 17px;
  }
  .registration-fee-table {
    flex-direction: column;
  }
  .registration-fee-table .fee-divider {
    width: 100%;
    height: 2px;
  }
  .registration-fee-table .fee-column {
    padding: 20px;
  }
  .registration-fee-table .fee-heading {
    font-size: 17px;
  }
  .registration-fee-table .fee-detail {
    font-size: 15px;
  }
}


.reg-subbox-title {
  font-weight: 600;
  margin-bottom: 10px;
  font-size: 24px;
  text-align: center;
}

.qr-img {
  max-width: 100%;
}

.upi-logos {
  margin-top: 8px;
}

.account-details {
  font-size: 18px;
  text-align: center;
}

.icons {
  text-align: center;
}
.copy-icon {
  cursor: pointer;
  font-size: 1.1rem;
}

.copy-icon:hover {
  color: #0d6efd;
}

.hotel-booking-section {
  padding: 30px 15px;
  text-align: center;
}

.hotel-booking-title {
  font-size: 24px;
  font-weight: 600;
  color: #333;
  margin-bottom: 25px;
}

.hotel-booking-wrapper {
  margin-top: 10px;
}

.programme{
  padding: 0 40px 0  ;
}

.more-details{
  text-align: center;
  padding: 20px;
  color: #606969;
  font-size: 18px;
  font-weight: 500;
}

.patron-section {
  padding: 30px 0;
  color: #ffffff;
  text-align: center;
}

.patron-inner-card {
  background-color: #1a3066;
  border-radius: 8px;
  padding: 50px 30px;
  color: #ffffff;
}

.patron-label {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 25px;
  text-transform: capitalize;
}

.patron-image-container {
  margin-bottom: 25px;
}

.patron-image-placeholder {
  width: 250px;
  border: 4px solid #ffffff;
  border-radius: 50%;
  aspect-ratio: 1/1;
  display: inline-block;
}

.patron-name {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
}

.patron-designation {
  font-size: 16px;
  line-height: 1.4;
  opacity: 0.9;
}
.register-form{
  padding: 0 40px;
}

@media (max-width: 767.98px) {
  body {
    background-image: url('../images/bg-ltx.jpg'); 
    background-attachment: fixed; 
  }
   .committee-column {
    padding: 0 15px;
  }
  .committee-header {
    font-size: 19px;
  }
  .member-name {
    font-size: 16px;
  }
  .programme-item {
    flex-direction: column;
  }
  .programme-time {
    margin-bottom: 10px;
    font-weight: 700;
  }
  .programme-title-strip {
    font-size: 22px;
    letter-spacing: 0.1em;
  }
  .programme-date-strip {
    font-size: 18px;
  }

  .text-block h4 {
    font-size: 18px;
  }

  .text-block p {
    font-size: 12px;
  }

  .text-block h3 {
    color: #183661;
    font-size: 20px;
  }
  .patron-section {
    padding: 60px 0;
  }
  .patron-card {
    margin-bottom: 40px;
  }
  .patron-image-placeholder {
    width: 200px;
  }
}

.scientific-programme-section {
  padding: 30px 0;
}

.programme-header-text {
  text-align: center;
  font-size: 20px;
  font-weight: 700;
  color: #333;
  margin-bottom: 30px;
}

.programme-header-text span {
  color: #F8C451;
  margin: 0 10px;
}

.programme-date-strip {
  background-color: #F8C451; 
  color: #000;
  text-align: center;
  padding: 12px 0;
  font-size: 22px;
  font-weight: 700;
  border-radius: 4px 4px 0 0;
}

.programme-title-strip {
  background-color: #1a3066; 
  color: #ffffff;
  text-align: center;
  padding: 12px 0;
  font-size: 30px;
  font-weight: 400;
  letter-spacing: 0.25em; 
  text-transform: uppercase;
}

.programme-container {
  margin: 0 auto;
  padding: 30px 20px;
}

.programme-item {
  display: flex;
  margin-bottom: 25px;
  align-items: flex-start;
}

.programme-time {
  width: 100px;
  flex-shrink: 0;
  font-size: 18px;
  font-weight: 500;
  color: #333;
}

.programme-details {
  flex-grow: 1;
}

.session-type {
  font-size: 22px;
  color: #1a3066; 
  margin-bottom: 5px;
}

.session-topic {
  font-size: 22px;
  font-weight: 700;
  color: #333;
  line-height: 1.3;
  margin-bottom: 5px;
}

.session-speaker {
  font-size: 19px;
  color: #333;
}
.session-speaker span{
  color: #1a3066;
  font-weight: 500;
}

.programme-divider {
  border-top: 2px dotted #333;
  margin: 25px 0;
} 

/* Responsive tweaks */
@media(min-width: 993px) and (max-width: 1024px) {
 

  .text-block h3 {
    font-size: 30px;
  }

  .text-block h4 {
    font-size: 24px;
  }
}

@media(min-width: 768px) and (max-width: 991.98px) {
  .programme-title-strip {
    font-size: 23px;
  }
 .hero-pre-title {
    font-size: 27px !important;
 }

  .text-block h4 {
    font-size: 22px;
  }

  .text-block p {
    font-size: 14px;
  }

  .text-block h3 {
    color: #183661;
    font-size: 24px;
  }

}


@media (min-width: 992px) {
  .registration-card {
    padding: 40px 40px 0;
  }

  .event-card {
    padding: 40px 40px 0px;
  }
}

@media (max-width: 575.98px) {
  .endorsed-logo {
    height: 32px;
}
.endorsed-content {
    flex-wrap: nowrap;
    padding: 5px 10px;
}
.endorsed-text {
    font-size: 10px;
}
  .mobile-upi-btn {
    display: inline-block;
  }
  .table-schedule th, .table-schedule td {
    font-size: 13px;
  }
      .schedule-wrapper {
        padding: 10px 0px 30px;
    }


  .hero-section {
    overflow: visible;   
  }

  .text-block h3 {
    font-size: 20px;
  }

  .text-block h4 {
    font-size: 13px;
  }

  .text-block p {
    font-size: 11px;
  }
  
  .top-left-logo img {
    max-height: 35px;
  }

  .schedule-wrapper1 {
    padding: 10px 0px 30px;
  }

  .section-title {
    font-size: 20px;
  }

  .welcome-title {
    font-size: 24px;
    margin-bottom: 20px;
  }
}

@media(min-width: 1024.98px) and (max-width: 1430px){

.text-block h3 {
    font-size: 35px;
}
.text-block h4 {
    font-size: 25px;
}
}

.committee-section {
  padding: 30px 0;
}

.committee-column {
  padding: 0 30px;
}

.committee-group {
  margin-bottom: 35px;
}

.committee-header {
  color: #1a3066;
  font-size: 22px;
  font-weight: 500;
  border-bottom: 2px solid #1a3066;
  display: inline-block;
  margin-bottom: 12px;
  text-decoration: none;
  line-height: 1.2;
}

.committee-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.member-name {
  font-size: 18px;
  color: #333333;
  margin-bottom: 6px;
  font-weight: 400;
}

/* Payment Box Styles */
.payment-box {
  background-color: #ffffff;
  border: 1px solid #d1d1d1;
  height: 100%;
  display: flex;
  flex-direction: column;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
  border-radius: 4px;
  overflow: hidden;
}

.payment-header {
  background-color: #1a3066;
  color: #ffffff;
  padding: 12px 15px;
  font-size: 26px;
  font-weight: 700;
  text-align: center;
}

.payment-body {
  padding: 20px;
  font-size: 18px;
  color: #333;
  line-height: 1.5;
  flex-grow: 1;
}

.payment-body p {
  margin-bottom: 10px;
}

.payment-body strong {
  color: #000;
}

.qr-section {
  text-align: center;
}

.qr-section h4 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}

.qr-section .merchant-name {
  font-weight: 700;
  margin: 15px 0;
  font-size: 17px;
  color: #000;
}

.upi-section {
  text-align: center;
  margin-top: 15px;
}

.upi-section .upi-subtitle {
  font-weight: 700;
  margin-bottom: 10px;
  font-size: 16px;
}

.upi-section .upi-id-display {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-weight: 700;
  margin-top: 10px;
}

@media (max-width: 991.98px) {
  .payment-box {
    margin-bottom: 25px;
  }
}

/* Pre-Conference Section */
.pre-conference-section {
  position: relative;
  overflow: hidden;
}

.pre-conf-label {
  color: #fbc351;
  font-size: 36px;
  font-weight: 500;
  letter-spacing: 0.15em;
  margin-bottom: 60px;
  text-transform: uppercase;
}

.pre-conf-title-group h1 {
  font-size: 64px;
  font-weight: 400;
  margin-bottom: 0px;
  letter-spacing: 0.05em;
  color: #ffffff;
}

.pre-conf-title-group h2 {
  font-size: 42px;
  color: #fbc351;
  font-weight: 700;
  margin-bottom: 25px;
}

.pre-conf-info {
  padding: 40px 0 0;
}

.pre-conf-details p {
  font-size: 26px;
  margin-bottom: 12px;
  color: #333;
}

.pre-conf-details span.blue-text {
  color: #1a3066;
  font-weight: 700;
}

.pre-conf-info hr {
  width: 80%;
  border: 0;
  border-top: 2px solid #333;
  margin: 15px auto;
  opacity: 1;
}

.pre-conf-description {
  max-width: 80%;
  margin: 0 auto;
  text-align: center;
  font-size: 24px;
  line-height: 1.5;
  color: #333;
}

.pre-conf-description p{
  max-width: 81%;
  margin: 0 auto;
}
.pre-conf-collab {
  text-align: center;
  margin-top: 30px;
}

.pre-conf-collab p {
  font-size: 17px;
  color: #666;
}

.renova-logo {
  height: 120px;
  margin-bottom: 30px;
  object-fit: contain;
}

@media (max-width: 767.98px) {
  .renova-logo {
    height: 80px;
  }
  .programme-header-text {
    font-size: 16px;
  }
  .pre-conf-label {
    font-size: 22px;
    margin-bottom: 25px;
  }
  .pre-conf-title-group h1 {
    font-size: 32px;
  }
  .pre-conf-title-group h2 {
    font-size: 22px;
  }
  .pre-conf-tagline {
    font-size: 16px;
  }
  .pre-conf-details p {
    font-size: 13px;
  }
  .pre-conf-description {
    font-size: 16px;
  }
  .lung-graphic {
    max-width: 200px;
  }
}