@font-face {
   font-family: 'Roboto';
   src: url('fonts/Roboto-Black.eot');
   src: url('fonts/Roboto-Black.eot?#iefix') format('embedded-opentype'), url('fonts/Roboto-Black.woff2') format('woff2'), url('fonts/Roboto-Black.woff') format('woff'), url('fonts/Roboto-Black.ttf') format('truetype');
   font-weight: 900;
   font-style: normal;
   font-display: swap;
 }

 @font-face {
   font-family: 'Roboto';
   src: url('fonts/Roboto-Bold.eot');
   src: url('fonts/Roboto-Bold.eot?#iefix') format('embedded-opentype'), url('fonts/Roboto-Bold.woff2') format('woff2'), url('fonts/Roboto-Bold.woff') format('woff'), url('fonts/Roboto-Bold.ttf') format('truetype');
   font-weight: bold;
   font-style: normal;
   font-display: swap;
 }

 @font-face {
   font-family: 'Roboto';
   src: url('fonts/Roboto-Thin.eot');
   src: url('fonts/Roboto-Thin.eot?#iefix') format('embedded-opentype'), url('fonts/Roboto-Thin.woff2') format('woff2'), url('fonts/Roboto-Thin.woff') format('woff'), url('fonts/Roboto-Thin.ttf') format('truetype');
   font-weight: 100;
   font-style: normal;
   font-display: swap;
 }

 @font-face {
   font-family: 'Roboto';
   src: url('fonts/Roboto-Regular.eot');
   src: url('fonts/Roboto-Regular.eot?#iefix') format('embedded-opentype'), url('fonts/Roboto-Regular.woff2') format('woff2'), url('fonts/Roboto-Regular.woff') format('woff'), url('fonts/Roboto-Regular.ttf') format('truetype');
   font-weight: normal;
   font-style: normal;
   font-display: swap;
 }

 @font-face {
   font-family: 'Roboto';
   src: url('fonts/Roboto-Medium.eot');
   src: url('fonts/Roboto-Medium.eot?#iefix') format('embedded-opentype'), url('fonts/Roboto-Medium.woff2') format('woff2'), url('fonts/Roboto-Medium.woff') format('woff'), url('fonts/Roboto-Medium.ttf') format('truetype');
   font-weight: 500;
   font-style: normal;
   font-display: swap;
 }

 @font-face {
   font-family: 'Roboto';
   src: url('fonts/Roboto-Light.eot');
   src: url('fonts/Roboto-Light.eot?#iefix') format('embedded-opentype'), url('fonts/Roboto-Light.woff2') format('woff2'), url('fonts/Roboto-Light.woff') format('woff'), url('fonts/Roboto-Light.ttf') format('truetype');
   font-weight: 300;
   font-style: normal;
   font-display: swap;
 }

 /* ============================================

   DTW Expo Lifecycle Solutions Quest

   Main Stylesheet

   ============================================ */
 /* CSS Variables */
 :root {
   --dell-blue: #0076CE;
   --dell-dark: #00447C;
   --dell-light: #E8F4FD;
   --dell-accent: #0672cb;
   --success: #28a745;
   --danger: #dc3545;
   --warning: #ffc107;
   --dark: #1a1a2e;
   --darker: #16213e;
   --darkest: #0f3460;
   --text-light: #ffffff;
   --text-muted: #a0aec0;
   --card-bg: rgba(255, 255, 255, 0.05);
   --gradient-1: linear-gradient(135deg, #0076CE 0%, #00447C 100%);
   --gradient-2: linear-gradient(135deg, #00A3E0 0%, #0076CE 100%);
   --gradient-3: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
   --shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
   --shadow-hover: 0 15px 50px rgba(0, 118, 206, 0.3);
   --border-radius: 16px;
   --transition: all 0.3s ease;
   --transparent: rgba(255, 255, 255, 0);
 }

 /* Reset & Base */
 *,
 *::before,
 *::after {
   margin: 0;
   padding: 0;
   box-sizing: border-box;
 }

 html {
   scroll-behavior: smooth;
   font-family: 'Roboto', sans-serif;
 }

 body {
   font-family: 'Roboto', sans-serif;
   background: var(--gradient-3);
   color: var(--text-light);
   min-height: 100vh;
   overflow-x: hidden;
   line-height: 1.6;
   background: url('../images/bg1.png') no-repeat top center;
   background-size: cover;
 }


 strong {
   font-weight: 600;
 }

 .body-overlay {
   position: fixed;
   top: 0;
   left: 0;
   width: 100%;
   height: 100%;
   background: rgba(0, 0, 0, 0.3);
 }

 #dellLogo {
   width: 200px;
   height: auto;
   position: absolute;
   top: 5%;
   right: 3%;
   z-index: 2;
 }

 .topleft {
   width: 150px;
   height: auto;
   position: absolute;
   top: 0;
   left: 0;
   z-index: 2;
   display: block;
 }

 .topright {
   width: 220px;
   height: auto;
   position: absolute;
   bottom: 0;
   right: 0;
   z-index: 2;
   display: block;
 }

 /* Background Animation */
 .bg-animation {
   position: fixed;
   top: 0;
   left: 0;
   width: 100%;
   height: 100%;
   z-index: 0;
   overflow: hidden;
   pointer-events: none;
 }

 .bg-animation .circle {
   position: absolute;
   border-radius: 50%;
   background: rgba(0, 118, 206, 0.08);
   animation: float 20s infinite ease-in-out;
 }

 .bg-animation .circle:nth-child(1) {
   width: 300px;
   height: 300px;
   top: -100px;
   right: -100px;
   animation-delay: 0s;
 }

 .bg-animation .circle:nth-child(2) {
   width: 200px;
   height: 200px;
   bottom: -50px;
   left: -50px;
   animation-delay: 5s;
 }

 .bg-animation .circle:nth-child(3) {
   width: 150px;
   height: 150px;
   top: 50%;
   left: 50%;
   animation-delay: 10s;
 }

 @keyframes float {

   0%,
   100% {
     transform: translateY(0) rotate(0deg);
     opacity: 0.5;
   }

   33% {
     transform: translateY(-30px) rotate(120deg);
     opacity: 0.8;
   }

   66% {
     transform: translateY(20px) rotate(240deg);
     opacity: 0.3;
   }
 }

 /* Container */
 .container {
   max-width: 90%;
   margin: 0 auto;
   padding: 0;
   position: relative;
   z-index: 1;
 }

 /* Logo / Brand */
 .brand {
   text-align: center;
   padding: 20px 0;
 }

 .brand img {
   height: 40px;
 }

 .brand-text {
   font-size: 14px;
   color: var(--dell-accent);
   font-weight: 600;
   letter-spacing: 3px;
   text-transform: uppercase;
   margin-top: 5px;
 }

 .copyright {
   position: absolute;
   bottom: 2%;
   left: 0;
   right: 0;
   width: 100%;
   text-align: center;
   font-size: 1.8rem;
   letter-spacing: 4px;
   color: #ffffff;
   z-index: 2;
 }

 /* ============================================

   HOME PAGE

   ============================================ */
 .homepage {
   background: url('../images/bg1.png') no-repeat center center fixed;
   background-size: cover;
 }

 .video-bg {
   position: fixed;
   top: 0;
   left: 0;
   width: 100%;
   height: 100%;
   z-index: 0;
   overflow: hidden;
 }

 .video-bg video {
   width: 100%;
   height: 100%;
   object-fit: cover;
 }

 .hero {
   text-align: center;
   padding: 70px 20px 0 20px;
   min-height: 99vh;
   display: flex;
   flex-direction: column;
   justify-content: center;
   align-items: center;
 }

 .hero-icon {
   width: 70%;
   margin: 0 auto;
 }

 @keyframes pulse {

   0%,
   100% {
     transform: scale(1);
   }

   50% {
     transform: scale(1.1);
   }
 }

 .hero h1 {
   font-size: 3rem;
   font-weight: 800;
   background: linear-gradient(135deg, #ffffff 0%, #00A3E0 100%);
   -webkit-background-clip: text;
   -webkit-text-fill-color: transparent;
   background-clip: text;
   margin-bottom: 15px;
   line-height: 1.2;
 }

 .home-bottom {
   position: absolute;
   bottom: 60px;
   text-align: center;
   width: 100%;
   z-index: 2;
 }

 .home-bottom .subtitle {
   font-size: 3rem;
   line-height: 1.2;
   color: #ffffff;
   margin: 0 0 0 0;
 }

 /* common button width for all buttons have class .common-btn */
 .common-btn {
   width: 300px;
   display: inline-block;
 }

 .btn-primary {
   display: inline-block;
   padding: 10px 60px;
   /* background: var(--gradient-1); */
   background-color: #0672cb;
   color: white;
   text-decoration: none;
   border-radius: 20px 0;
   font-size: 2.2rem;
   font-weight: 400;
   border: 1px solid #8ea0db;
   cursor: pointer;
   transition: var(--transition);
   box-shadow: 0 5px 25px rgba(0, 118, 206, 0.4);
   letter-spacing: 2px;
   position: relative;
   overflow: hidden;
   transform: skewX(-20deg);
 }

 .btn-primary>* {
   transform: none;
 }

 .btn-primary::before {
   content: '';
   position: absolute;
   top: 0;
   left: -100%;
   width: 100%;
   height: 100%;
   background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
   transition: left 0.5s;
 }

 .btn-primary:hover::before {
   left: 100%;
 }

 .btn-primary:hover {
   /* transform: translateY(-3px);

     box-shadow: var(--shadow-hover); */
 }

 .btn-primary:active {
   transform: translateY(-1px);
 }

 .btn-secondary {
   display: inline-block;
   padding: 14px 40px;
   background: transparent;
   color: var(--dell-accent);
   text-decoration: none;
   border-radius: 50px;
   font-size: 1rem;
   font-weight: 600;
   border: 2px solid var(--dell-accent);
   cursor: pointer;
   transition: var(--transition);
 }

 .btn-secondary:hover {
   background: var(--dell-accent);
   color: white;
   transform: translateY(-2px);
 }

 .page-logo {
   width: 400px;
   height: auto;
   float: right;
   margin-top: 10px;
 }

 /* ============================================

   REGISTRATION PAGE

   ============================================ */
 .register-page {
   padding: 0;
   min-height: 100vh;
   width: 100%;
   background: url('../images/bg2.png') no-repeat;
   background-position: center center;
   background-size: contain;
   margin: 0 auto;
   display: flex;
   flex-direction: column;
   justify-content: center;
 }

 .register-page .rules-inner {
   display: flex;
   align-items: center;
   width: 90%;
   height: 100%;
   margin: 0 auto;
   padding-top: 40px;
 }

 .col.col-9 {
   flex: 0 0 auto !important;
   width: 55%;
 }

 .col.col-3 {
   flex: 0 0 auto !important;
   width: 45%;
 }

 .register-page .rules-inner .row .col:last-child {
   padding-left: 100px;
 }

 .score-inner .score-item {
   display: flex;
   align-items: center;
   justify-content: start;
 }

 .score-inner .score-item h4 {
   font-size: 1.5rem;
   color: #ffffff;
   font-weight: 300;
   padding-right: 20px;
 }

 .score-inner .score-item h2 {
   text-align: left;
   font-size: 2.6rem;
   margin-bottom: 10px;
   line-height: 1.3;
   font-weight: 100;
 }

 .score-inner .score-bar {
   width: 60%;
   height: 10px;
   background: url('../images/bar.png') no-repeat center center;
   background-size: contain;
   margin: 10px 0 10px 0;
 }

 .rules-inner .row {
   align-items: start;
 }

 .form-heading {
   margin-bottom: 0;
   padding: 25px 0;
 }

 .form-card {
   position: relative;
   margin: 0 auto;
   width: 100%;
   height: 90vh;
   padding: 0 60px 40px 60px;
 }

 .form-card h2 {
   text-align: left;
   font-size: 4rem;
   margin-bottom: 10px;
   line-height: 1;
 }

 .form-heading h3 {
   text-align: left;
   font-size: 3rem;
   margin-bottom: 10px;
   line-height: 1;
   font-weight: 300;
 }

 .form-card .form-subtitle {
   text-align: center;
   font-size: 3rem;
   line-height: 0.5;
 }

 #registerForm {
   width: 80%;
   margin: 0 auto;
 }

 .form-group {
   margin-bottom: 20px;
 }

 .form-group label {
   display: none;
   margin-bottom: 8px;
   font-weight: 600;
   color: #ffffff;
   font-size: 0.9rem;
   text-transform: uppercase;
   letter-spacing: 1px;
 }

 .form-group label .required {
   color: var(--danger);
   margin-left: 3px;
 }

 .form-group input {
   width: 100%;
   padding: 18px;
   background: rgba(12, 154, 245, 0.2);
   border: 1px solid rgba(12, 154, 245, 1);
   border-radius: 4px;
   color: white;
   font-size: 1.4rem;
   transition: var(--transition);
   outline: none;
 }

 .form-group input::placeholder {
   color: rgba(255, 255, 255, 1);
 }

 .form-group input:focus {
   border-color: var(--dell-accent);
   background: rgba(255, 255, 255, 0.12);
   box-shadow: 0 0 0 3px rgba(0, 163, 224, 0.15);
 }

 .form-group input.error {
   border-color: var(--danger);
   background: rgba(220, 53, 69, 0.1);
   box-shadow: 0 0 0 3px rgba(220, 53, 69, 0.15);
   animation: shake 0.3s;
 }

 .form-group .error-msg {
   color: var(--danger);
   font-size: 0.85rem;
   margin-top: 5px;
   display: none;
 }

 .form-group .error-msg.show {
   display: block;
 }

 /* Checkbox */
 .checkbox-group {
   display: flex;
   align-items: center;
   justify-content: center;
   gap: 12px;
   margin-bottom: 15px;
 }

 .checkbox-group input[type="checkbox"] {
   width: 20px;
   height: 20px;
   margin-top: 2px;
   accent-color: var(--dell-blue);
   cursor: pointer;
   flex-shrink: 0;
 }

 .checkbox-group label {
   font-size: 1.2rem;
   cursor: pointer;
 }

 .checkbox-group label a {
   color: var(--dell-accent);
   text-decoration: underline;
   cursor: pointer;
 }

 .checkbox-group label a:hover {
   color: var(--dell-blue);
 }

 #termsError {
   display: none;
   text-align: center;
   color: var(--danger);
   font-size: 1.4rem;
   margin-top: -20px;
   margin-bottom: 15px;
 }

 .form-row {
   display: grid;
   grid-template-columns: 1fr;
   gap: 20px;
 }

 #registerBtn {
   position: absolute;
   left: 0;
   right: 0;
   bottom: -40px;
   width: 318px;
   margin: 0 auto;
   background: url('../images/img_submit.png') no-repeat center center;
   background-size: contain;
   border: none;
   padding: 0;
   height: 196px;
   cursor: pointer;
 }

 /* ============================================

   MODAL / POPUP

   ============================================ */
 .modal-overlay {
   display: none;
   position: fixed;
   top: 0;
   left: 0;
   width: 100%;
   height: 100%;
   background: rgba(0, 0, 0, 0.5);
   backdrop-filter: blur(2px);
   z-index: 1000;
   justify-content: center;
   align-items: center;
   padding: 20px;
 }

 .modal-overlay.active {
   display: flex;
 }

 .modal {
   background: url('../images/bg-modal.png') no-repeat;
   background-size: cover;
   background-position: top left;
   max-width: 1340px;
   width: 100%;
   height: auto;
   overflow-y: hidden;
   position: relative;
   border-top-left-radius: 50px;
   border-bottom-right-radius: 50px;
 }

 .modal-header {
   display: flex;
   justify-content: space-between;
   align-items: center;
   height: 160px;
   padding: 0 70px;
   margin-top: 20px;
 }

 .modal-body {
   padding: 70px 70px 40px 70px;
   padding-top: 0;
   overflow: hidden;
 }

 .modal-close {
   position: absolute;
   top: 0;
   right: 0;
   background: none;
   border: none;
   color: var(--text-light);
   font-size: 5rem;
   cursor: pointer;
   width: 60px;
   height: 47px;
   display: flex;
   align-items: center;
   justify-content: center;
   background: url('../images/close.png') no-repeat top right;
   background-size: contain;
 }

 .modal-close:hover {
   opacity: 0.8;
 }

 .modal h3 {
   font-size: 4rem;
   margin-bottom: 0;
   line-height: 1;
 }

 .modal p,
 .modal li {
   line-height: 1.6;
   margin-bottom: 15px;
 }

 .modal ul {
   padding-left: 20px;
   margin-bottom: 15px;
 }

 @keyframes modalSlideIn {
   from {
     transform: translateY(-30px);
     opacity: 0;
   }

   to {
     transform: translateY(0);
     opacity: 1;
   }
 }

 .rules-modal .modal {
   background: url('../images/rules-modal.png') no-repeat;
   background-size: contain;
 }

 .rules-modal .modal-body {
   padding-top: 40px;
 }

 .rules-modal .modal-header {
   height: 115px;
 }

 .rules-modal ul {
   list-style: none;
   margin: 0;
   padding: 0;
 }

 .rules-modal ul li {
   background: url(../images/bullet.png) no-repeat left top 15px;
   padding-left: 40px;
   background-size: 30px;
   font-size: 2.3rem;
   font-weight: 300;
   color: #ffffff;
   margin-bottom: 15px;
 }

 .btn-rules-img {
   width: 240px;
   height: auto;
   position: fixed;
   z-index: 9999;
   left: 0;
   right: 0;
   margin: 0 auto;
   cursor: pointer;
 }

 .rules-list ul {
   list-style: none;
   padding: 0;
   margin: 0 0 20px 0;
 }

 .rules-list ul li {
   color: #ffffff;
   padding: 8px 0;
   padding-left: 50px;
   position: relative;
   font-size: 1.5rem;
   letter-spacing: 1px;
   line-height: 1.3;
   font-weight: 300;
 }

 .rules-list ul li::before {
   content: '';
   position: absolute;
   left: 0;
   color: var(--dell-accent, #0672cb);
   font-weight: bold;
   height: 30px;
   width: 35px;
   background-size: contain;
   background-image: url(../images/bullet.png);
   background-repeat: no-repeat;
   background-position: center;
 }

 .fade-out {
   opacity: 0;
   animation: fadeOut 0.5s forwards;
 }

 /* ============================================

   GAME PAGE

   ============================================ */
 .game-page {
   /* padding: 20px 0;

     min-height: 100vh;

     display: flex;

     align-items: center;

     justify-content: center;

     flex-direction: column; */
   padding: 0;
   margin: 0;
   min-height: 100vh;
   width: 100%;
   display: flex;
   flex-direction: column;
   justify-content: center;
 }

 /* Solution Area Selection */
 #solutionPhase {
   position: relative;
   height: 90vh;
   width: 100%;
   background: url(../images/bg2.png) no-repeat top center;
   background-size: contain;
   padding: 10px 60px;
   margin: 0 auto;
 }

 .section-title {
   text-align: center;
   font-size: 4rem;
   line-height: 1;
   margin-bottom: 80px;
   padding: 20px 0 40px 0;
 }

 .solution-phase .section-title {
   margin-bottom: 10px;
 }

 .section-subtitle {
   text-align: center;
   color: #ffffff;
   margin-bottom: 30px;
   font-size: 1rem;
 }

 .solution-grid {
   display: grid;
   grid-template-columns: 1fr 1fr 1fr;
   gap: 40px;
   margin-bottom: 30px;
   width: 90%;
   margin: 0 auto;
 }

 .solution-card {
   background: rgba(15, 154, 242, 0.0);
   border: 2px solid rgba(15, 154, 242, 0.8);
   padding: 35px 20px;
   cursor: pointer;
   transition: var(--transition);
   text-align: center;
   position: relative;
   overflow: hidden;
   display: flex;
   align-items: center;
   justify-content: center;
   min-height: 180px;
 }

 .solution-card:hover {
   border-color: var(--transparent);
   background: url('../images/bg-s-card.png') no-repeat center center;
   background-size: cover;
 }

 .solution-card:hover>* {
   color: white;
   font-weight: 500;
 }

 .solution-card.selected {
   border-color: var(--dell-accent);
   background: rgba(0, 163, 224, 0.1);
 }

 .solution-card.selected::before {
   transform: scaleX(1);
 }

 .solution-card .card-icon {
   font-size: 40px;
   margin-bottom: 15px;
 }

 .solution-card h3 {
   font-size: 1.8rem;
   font-weight: 300;
   margin-bottom: 0;
   color: white;
 }

 .solution-card p {
   font-size: 1.80rem;
   color: #ffffff;
   line-height: 1.4;
 }

 /* MCQ Section */
 .mcq-section {
   display: none;
   /* background: url(../images/bg-question.png) no-repeat top center;

     background-size: contain;

     padding: 0 90px;

     height: 80vh;

     width: 80%;

     margin: 0 auto; */
   position: relative;
   height: 90vh;
   width: 100%;
   background: url(../images/bg2.png) no-repeat top center;
   background-size: contain;
   padding: 10px 60px;
   margin: 0 auto;
 }

 .mcq-section.active {
   display: block;
   animation: fadeIn 0.5s ease;
 }

 @keyframes fadeIn {
   from {
     opacity: 0;
     transform: translateY(20px);
   }

   to {
     opacity: 1;
     transform: translateY(0);
   }
 }

 .question-progress {
   display: flex;
   justify-content: center;
   gap: 10px;
   margin: 20px 0;
   height: auto;
   width: 100%;
   transform: translateY(-20px);
 }

 .question-progress p {
   font-size: 4rem;
   line-height: 1;
   color: #ffffff;
   font-weight: 600;
 }

 .question-dot {
   /* width: 40px;

     height: 40px;

     border-radius: 50%;

     background: rgba(255, 255, 255, 0.1);

     display: none;

     align-items: center;

     justify-content: center;

     font-weight: 700;

     font-size: 0.9rem;

     color: #ffffff;

     border: 2px solid rgba(255, 255, 255, 0.15);

     transition: var(--transition); */
   display: none;
 }

 .question-dot.active {
   display: block;
   font-size: 4rem;
   line-height: 1;
   color: #ffffff;
   font-weight: 600;
 }

 .question-card-solution {
   height: 9%;
   display: flex;
   align-items: center;
   justify-content: end;
   font-size: 1.7rem;
   font-weight: 600;
   margin: 0;
   padding: 0;
   line-height: 1.2;
   color: white;
 }

 .question-dot.completed {
   background: var(--success);
   border-color: var(--success);
   color: white;
 }

 .question-card {
   padding: 35px;
   margin-bottom: 20px;
   height: 80%;
   text-align: center;
 }

 .question-card h3 {
   font-size: 1.75rem;
   line-height: 1.2;
   font-weight: 300;
   margin: 0 0 20px 0;
   color: white;
   text-align: center;
 }

 .options-list {
   display: grid;
   grid-template-columns: 1fr 1fr;
   gap: 30px;
   padding-top: 30px;
 }

 .option-btn {
   background: url('../images/option-bg.png') no-repeat bottom right;
   background-size: contain;
   border: none;
   border-top-left-radius: 10px;
   padding: 30px;
   cursor: pointer;
   transition: var(--transition);
   text-align: left;
   position: relative;
   overflow: hidden;
   color: #ffffff;
   font-size: 1.7rem;
   line-height: 1.4;
   display: flex;
   align-items: flex-start;
   min-height: auto;
 }

 /*
 .option-btn:hover {
   background: url('../images/opt-hover.png') no-repeat bottom right;
   background-size: cover;
   color: white;
   transform: translateY(-3px);
 }

 .option-btn:hover .option-text {
   color: #0c32a4;
 }
*/
 .option-btn .option-letter {
   height: 40px;
   width: 30px;
   background-size: contain;
   background-image: url(../images/bullet.png);
   background-repeat: no-repeat;
   background-position: center;
   display: flex;
   align-items: center;
   justify-content: center;
   font-weight: 700;
   font-size: 0.9rem;
   flex-shrink: 0;
 }

 .option-btn .option-letter>* {
   opacity: 0;
 }

 .option-btn.correct {
   border-color: var(--success);
   background: rgba(40, 167, 69, 1);
 }

 .option-btn.incorrect {
   border-color: var(--danger);
   background: rgba(220, 53, 69, 1);
 }

 .option-btn.selected .option-letter {
   /* background: var(--dell-accent); */
 }

 .option-btn.correct .option-letter {
   /* background: var(--success); */
 }

 .option-btn.incorrect .option-letter {
   /* background: var(--danger); */
 }

 .option-btn .option-text {
   flex: 1;
   margin-left: 20px;
   font-weight: 600;
 }

 .option-btn .option-text span {
   font-size: 20px;
   font-weight: 300;
   display: block;
 }

 .option-btn:disabled {
   cursor: not-allowed;
   opacity: 0.7;
 }

 /* Hint Button */
 .hint-btn {
   opacity: 0;
   visibility: hidden;
   position: fixed;
   left: 30px;
   bottom: 30px;
   width: 130px;
   height: 180px;
   background: url(../images/hint.png) no-repeat center center;
   background-size: contain;
   border: none;
   color: white;
   font-size: 1.5rem;
   cursor: pointer;
   transition: var(--transition);
   z-index: 100;
   display: none;
   align-items: center;
   justify-content: center;
 }

 .hint-btn.visible {
   display: flex;
 }

 /* .hint-btn:hover {

     transform: scale(1.1);

     box-shadow: 0 8px 30px rgba(0, 118, 206, 0.6);

 } */
 .hint-btn.used {
   /* background: #666; */
   cursor: not-allowed;
   box-shadow: none;
 }

 .hint-btn .hint-label {
   display: none;
   position: absolute;
   bottom: -25px;
   left: 50%;
   transform: translateX(-50%);
   font-size: 0.7rem;
   white-space: nowrap;
   color: #ffffff;
   font-weight: 600;
   text-transform: uppercase;
   letter-spacing: 1px;
 }

 #hintModal .modal {
   background: url(../images/bg-hint.png) no-repeat;
   background-size: contain;
   width: 100%;
   max-width: 600px;
   height: 690px;
   overflow: hidden;
   position: relative;
   display: flex;
   align-items: center;
   justify-content: center;
 }

 #closeHintBtn {
   position: fixed;
   left: 30px;
   bottom: 30px;
   width: 130px;
   height: 180px;
   background: url(../images/close-hint.png) no-repeat center center;
   background-size: contain;
   border: none;
   color: white;
   font-size: 1.5rem;
   cursor: pointer;
   transition: var(--transition);
   z-index: 10000;
   display: none;
   align-items: center;
   justify-content: center;
 }

 #hintText {
   font-size: 3rem;
   line-height: 1.3;
   width: 80%;
   margin: 0 auto;
   padding-top: 50px;
 }

 .modal-overlay.active #closeHintBtn {
   display: flex;
 }

 /* Circular Timer */
 .circle-timer {
   background: url('../images/timer-bg.png') no-repeat center center;
   background-size: contain;
   position: fixed;
   left: 0;
   right: 0;
   bottom: 0;
   width: 114px;
   height: 95px;
   margin: 0 auto;
   display: flex;
   align-items: center;
   justify-content: center;
   z-index: 99999;
 }

 .circle-timer-svg {
   position: absolute;
   width: 52%;
   height: 52%;
   transform: rotate(-90deg);
   top: 27px;
   left: 30px;
   opacity: 0;
 }

 .circle-timer-bg {
   fill: none;
   stroke: rgba(255, 255, 255, 0.1);
   stroke-width: 8;
 }

 .circle-timer-progress {
   fill: none;
   stroke: var(--dell-accent);
   stroke-width: 8;
   stroke-linecap: round;
   stroke-dasharray: 339.292;
   stroke-dashoffset: 0;
   transition: stroke-dashoffset 1s linear, stroke 0.3s ease;
 }

 .circle-timer-progress.warning {
   stroke: var(--warning);
 }

 .circle-timer-progress.danger {
   stroke: var(--danger);
 }

 .circle-timer-text {
   display: flex;
   flex-direction: column;
   align-items: center;
   justify-content: center;
   line-height: 1;
   position: absolute;
   width: 55%;
   height: 55%;
   top: 23px;
 }

 .circle-timer-text .timer-count {
   font-size: 1.4rem;
   font-weight: 800;
   font-variant-numeric: tabular-nums;
   color: #13eae2;
 }

 .circle-timer-text .timer-count.warning {
   color: var(--warning);
 }

 .circle-timer-text .timer-count.danger {
   color: var(--danger);
   animation: timerPulse 0.5s infinite;
 }

 .circle-timer-text .timer-label {
   font-size: 0.7rem;
   color: var(--text-muted);
   text-transform: uppercase;
   letter-spacing: 1px;
   margin-top: 4px;
 }

 @keyframes timerPulse {

   0%,
   100% {
     opacity: 1;
   }

   50% {
     opacity: 0.5;
   }
 }

 .text-end {
   text-align: end;
 }

 /* ============================================

   Trivia Modal

   ============================================ */
 #triviaModal .modal {
   padding: 70px 70px 120px 70px;
   position: relative;
 }

 #triviaTitle {
   display: flex;
   justify-content: flex-start;
   gap: 10px;
   margin: 0;
   height: auto;
 }

 .textWrapper {
   display: flex;
   align-items: center;
   justify-content: flex-start;
   width: 100%;
   margin: 0 auto;
   padding: 30px 0;
 }

 .textWrapper p {
   font-size: 2rem;
   line-height: 1.2;
   font-weight: 300;
   color: #ffffff;
 }

 #triviaModal .modal-icon {
   position: absolute;
   left: 0;
   bottom: 0;
 }

 #triviaModal .modal-icon img {
   width: 280px;
   height: auto;
   margin-right: 0;
 }

 #triviaNextBtn {
   position: relative;
   width: 330px;
   margin: 0 auto;
   cursor: pointer;
 }

 /*  Times Up Modal  */
 #timeUpModal .modal,
 #resultModal .modal {
   padding: 70px 70px 120px 70px;
 }

 #timeUpModal .modal-icon {
   position: absolute;
   left: 0;
   bottom: 0;
 }

 #timeUpModal .modal-icon img {
   width: 280px;
   height: auto;
   margin-right: 0;
 }

 img.qr-code {
   width: 150px;
 }

 #timeUpModal h4,
 #resultModal h4 {
   font-size: 1.8rem;
   line-height: 1.2;
   font-weight: 300;
   color: #ffffff;
 }

 #timeUpModalResultScore,
 #resultScore {
   font-size: 42px;
 }

 #leaderBoardBtn {
   position: relative;
   width: 330px;
   margin: 30px auto 0 auto;
   cursor: pointer;
 }

 #resultModal .row {
   align-items: end;
 }

 /* ============================================

   RESULT PAGE

   ============================================ */
 .result-page {
   min-height: 100vh;
   display: flex;
   flex-direction: column;
   justify-content: center;
   padding: 40px 0;
   text-align: center;
 }

 .result-card {
   background: url('../images/bg-result.png') no-repeat top center;
   background-size: contain;
   padding: 50px 40px;
   width: 720px;
   margin: 0 auto;
   height: 750px;
   display: flex;
   flex-direction: column;
   justify-content: center;
   position: relative;
 }

 .result-icon {
   font-size: 80px;
   margin-bottom: 20px;
 }

 .result-card h1 {
   font-size: 2.5rem;
   margin-bottom: 10px;
   background: linear-gradient(135deg, #ffffff 0%, #00A3E0 100%);
   -webkit-background-clip: text;
   -webkit-text-fill-color: transparent;
   background-clip: text;
 }

 .result-card .solution-badge {
   display: inline-block;
   padding: 8px 25px;
   background: rgba(0, 163, 224, 0.15);
   border: 1px solid var(--dell-accent);
   border-radius: 50px;
   color: var(--dell-accent);
   font-size: 0.95rem;
   font-weight: 600;
   margin-bottom: 30px;
 }

 .result-stats {
   display: flex;
   justify-content: space-between;
   flex-direction: column;
   gap: 20px;
   margin: 30px 0;
 }

 .result-stats table tr td {
   font-size: 2rem;
   line-height: 1.4;
   color: #ffffff;
   text-align: left;
 }

 .result-stats table tr {
   margin: 5px 0;
 }

 .result-stats table tr td icon {
   display: block;
   width: 30px;
   height: 30px;
   margin: 10px 20px;
   background: url('../images/arrow.png') no-repeat center center;
   background-size: contain;
 }

 .stat-item {
   display: flex;
 }

 .stat-item .stat-value {
   padding-left: 70px;
 }

 .stat-item .stat-value,
 .stat-item .stat-label {
   font-size: 2rem;
   color: #ffffff;
   text-align: left;
 }

 .stat-item .stat-value span,
 .stat-item .stat-label span {
   display: block;
   position: relative;
 }

 .stat-item .stat-label {
   width: 30%;
 }

 .stat-item .stat-value span::after {
   content: '';
   display: block;
   position: absolute;
   left: -40px;
   top: 10px;
   width: 30px;
   height: 30px;
   background: url('../images/arrow.png') no-repeat center center;
   background-size: contain;
 }

 #seeNextBtn {
   position: absolute;
   left: 0;
   right: 0;
   bottom: 30px;
   width: 400px;
   margin: 0 auto;
   cursor: pointer;
 }

 /* ============================================

   THANK YOU PAGE

   ============================================ */
 .thankyou-page {
   min-height: 100vh;
   display: flex;
   flex-direction: column;
   justify-content: center;
   padding: 40px 0;
   text-align: center;
 }

 .thankyou-card {
   background: rgba(255, 255, 255, 0.06);
   backdrop-filter: blur(20px);
   border-radius: var(--border-radius);
   padding: 50px 40px;
   border: 1px solid rgba(255, 255, 255, 0.1);
   box-shadow: var(--shadow);
   position: relative;
 }

 .thankyou-card h1 {
   font-size: 3rem;
   margin-bottom: 15px;
   background: linear-gradient(135deg, #FFD700 0%, #FFA500 100%);
   -webkit-background-clip: text;
   -webkit-text-fill-color: transparent;
   background-clip: text;
 }

 .thankyou-card .thankyou-message {
   font-size: 1.2rem;
   color: #ffffff;
   margin-bottom: 40px;
   line-height: 1.6;
 }

 .thankyou-info {
   position: absolute;
   bottom: 30px;
   left: 30px;
   text-align: left;
 }

 .thankyou-info .player-name {
   font-size: 1.1rem;
   font-weight: 700;
   color: white;
   margin-bottom: 10px;
 }

 .thank-you .qr-section {
   position: fixed;
   left: 3%;
   bottom: 3%;
   display: flex;
   align-items: center;
   gap: 15px;
 }

 .thankyou-info .qr-code-img {
   width: 100px;
   height: 100px;
   background: white;
   border-radius: 10px;
   padding: 8px;
   display: flex;
   align-items: center;
   justify-content: center;
 }

 .thankyou-info .qr-code-img img {
   width: 100%;
   height: 100%;
   object-fit: contain;
 }

 .thankyou-info .qr-label {
   font-size: 0.85rem;
   color: #ffffff;
 }

 .thankyou-info .qr-solution-name {
   font-size: 1rem;
   font-weight: 600;
   color: var(--dell-accent);
   margin-top: 3px;
 }

 .confetti-emoji {
   font-size: 60px;
   margin-bottom: 20px;
 }

 /* ============================================

   QR CODE PLACEHOLDER

   ============================================ */
 .qr-placeholder {
   width: 180px;
   height: 180px;
   border-radius: 8px;
   display: flex;
   align-items: center;
   justify-content: center;
   font-size: 0.7rem;
   color: #333;
   text-align: center;
   padding: 5px;
   font-weight: 600;
 }

 .qr-placeholder img {
   width: 100%;
   height: 100%;
   object-fit: cover;
 }

 /* ============================================

   LOADING SPINNER

   ============================================ */
 .spinner {
   display: inline-block;
   width: 24px;
   height: 24px;
   border: 3px solid rgba(255, 255, 255, 0.3);
   border-radius: 50%;
   border-top-color: white;
   animation: spin 0.8s linear infinite;
   margin-right: 8px;
   vertical-align: middle;
 }

 @keyframes spin {
   to {
     transform: rotate(360deg);
   }
 }

 /* Disabled button */
 .btn-primary:disabled {
   opacity: 0.7;
   cursor: not-allowed;
   transform: none !important;
 }

 /* ============================================

   TOAST NOTIFICATION

   ============================================ */
 .toast {
   position: fixed;
   top: 20px;
   right: 20px;
   padding: 15px 25px;
   border-radius: 12px;
   color: white;
   font-weight: 600;
   z-index: 2000;
   animation: toastSlide 0.3s ease;
   max-width: 350px;
 }

 @keyframes toastSlide {
   from {
     transform: translateX(100px);
     opacity: 0;
   }

   to {
     transform: translateX(0);
     opacity: 1;
   }
 }

 .toast.success {
   background: var(--success);
 }

 .toast.error {
   background: var(--danger);
 }

 .toast.warning {
   background: var(--warning);
   color: #333;
 }

 /* ============================================

   Row, col css

   ============================================ */
 .row {
   display: flex;
   flex-wrap: wrap;
   margin: 0 -15px;
   height: 100%;
   width: 100%;
 }

 .row .col {
   flex: 1;
   padding: 0 15px;
   position: relative;
 }

 .row .col-full {
   flex: 0 0 100%;
   position: relative;
 }

 #termsModal .modal-body {
   height: 400px;
   overflow: hidden;
   overflow-y: auto;
   width: 95%;
   padding-bottom: 0;
 }

 .modal {
   padding-bottom: 70px;
 }

 ::-webkit-scrollbar {
   width: 12px;
 }

 ::-webkit-scrollbar-track {
   -webkit-box-shadow: inset 0 0 4px rgba(255, 255, 255, 1);
   border-radius: 5px;
 }

 ::-webkit-scrollbar-thumb {
   border-radius: 5px;
   -webkit-box-shadow: inset 0 0 4px rgba(0, 0, 0, 0.9);
 }

 /* ============================================

   RESPONSIVE

   ============================================ */
 @media screen and (max-width: 1600px) {
   #termsModal .modal-body {
     height: 400px;
     overflow: hidden;
     overflow-y: auto;
     width: 95%;
     padding-bottom: 0;
   }

   .hero-icon {
     width: 60%;
     margin: 0 auto;
   }

   .home-bottom {
     bottom: 40px;
   }

   .home-bottom .common-btn {
     width: 210px;
   }

   .topleft {
     width: 100px;
   }

   .topright {
     width: 170px;
   }

   .page-logo {
     width: 340px;
     margin-top: 0px;
   }

   .register-page .rules-inner {
     width: 95%;
   }

   .form-card h2 {
     text-align: left;
     font-size: 3rem;
   }

   .form-heading h3 {
     font-size: 2.1rem;
   }

   .rules-list ul li {
     font-size: 1.1rem;
   }

   .score-inner .score-item h4 {
     font-size: 1.3rem;
   }

   .score-inner .score-item h2 {
     font-size: 2rem;
   }

   .form-heading {
     padding: 25px 0 10px 0;
   }

   .checkbox-group label {
     font-size: 1rem;
   }

   .btn-rules-img {
     width: 200px;
   }

   .score-inner .score-bar {
     margin: 7px 0 7px 0;
   }

   /* MODAL CSS */
   .modal {
     width: 70%;
     padding-bottom: 40px;
   }

   .modal h3 {
     font-size: 3rem;
   }

   .modal-header {
     height: 110px;
   }

   .modal p,
   .modal li {
     line-height: 1.4;
     margin-bottom: 10px;
   }

   /* GAME  page */
   #solutionPhase {}

   .solution-phase {}

   .solution-phase .section-title {
     font-size: 2.8rem;
   }

   .game-page .page-logo {
     width: 300px;
     margin-top: 10px;
   }

   .solution-grid {
     gap: 20px
   }

   .solution-card {
     padding: 25px 20px;
     min-height: auto;
     height: auto;
   }

   .solution-card h3 {
     font-size: 1.5rem;
     line-height: 1.2;
   }

   /*	 */
   .circle-timer {
     bottom: 0;
     width: 90px;
     height: 74px;
   }

   .circle-timer-text {
     top: 18px;
   }

   .circle-timer-text .timer-count {
     font-size: 1.1rem;
   }

   .question-progress p,
   .question-dot.active {
     font-size: 2.8rem;
   }

   .mcq-section {
     padding: 10px 80px;
   }

   .question-card {
     padding-top: 10px;
   }

   .question-card h3 {
     font-size: 1.25rem;
     margin: 0 0 10px 0;
   }

   .question-card .q-img {
     padding: 15px 0 0 0;
   }

   .options-list {
     gap: 20px;
     padding-top: 10px;
   }

   .option-btn {
     font-size: 1.2rem;
     line-height: 1.2;
     align-items: center;
   }

   .option-btn .option-text span {
     font-size: 14px;
   }

   .textWrapper p {
     font-size: 1.5rem;
     line-height: 1.25;
   }

   #triviaNextBtn {
     width: 200px;
   }

   #resultModal .modal {
     padding: 70px 70px 70px 70px;
   }

   #leaderBoardBtn {
     position: relative;
     width: 260px;
   }

   #resultModal h4 {
     font-size: 1.3rem;
   }

   #resultModal .textWrapper {
     padding-bottom: 0;
   }
 }

 /*1024*/
 /* ========== RESPONSIVE - LARGE SCREENS (4K/55") ========== */
 @media (min-width: 3840px) {
   #termsModal .modal-body {
     height: 1100px;
     overflow: hidden;
     overflow-y: auto;
     width: 95%;
     padding-bottom: 0;
   }

   #dellLogo {
     width: 500px;
   }

   .topleft {
     width: 400px;
   }

   .topright {
     width: 500px;
   }

   .hero-icon {
     transform: translateY(30px);
   }

   .home-bottom {
     bottom: 235px;
   }

   .home-bottom a img {
     width: 650px;
   }

   .register .container {
     width: 94%;
   }

   .form-card {
     height: 82vh;
     padding: 100px;
   }

   .page-logo {
     width: 860px;
     margin-top: -40px;
   }

   .register-page .rules-inner {
     padding-top: 85px;
     padding-bottom: 25px;
   }

   .form-card h2 {
     font-size: 10rem;
   }

   .form-heading h3 {
     font-size: 8rem;
   }

   .form-heading {
     margin-bottom: 50px;
   }

   .rules-list ul li {
     font-size: 3.3rem;
   }

   .rules-list ul li::before {
     height: 65px;
     width: 35px;
     left: -10px;
   }

   .score-inner .score-item h4 {
     font-size: 3.3rem;
   }

   .score-inner .score-item h2 {
     font-size: 5rem;
   }

   .score-inner .score-bar {
     margin: 25px 0;
   }

   .checkbox-group label {
     font-size: 3rem;
   }

   .btn-rules-img {
     width: 530px;
   }

   .register-page .rules-inner .row .col:last-child {
     padding-left: 200px;
   }

   .checkbox-group input[type="checkbox"] {
     width: 45px;
     height: 45px;
     margin-top: 1px;
   }

   .modal {
     max-width: 75%;
     padding: 70px 50px;
   }

   .modal-header {
     height: 200px;
     padding: 0 60px;
   }

   .modal h3 {
     font-size: 7rem;
   }

   .modal-close {
     width: 120px;
     height: 94px;
   }

   .modal p,
   .modal li {
     font-size: 2.75rem;
     line-height: 1.2;
     margin-bottom: 30px;
   }

   .game-body .container {
     max-width: 92%;
   }

   .solution-phase .page-logo {
     width: 860px;
     margin-top: 50px;
     margin-right: 50px;
   }

   .solution-phase .section-title {
     font-size: 8rem;
     margin-bottom: 50px;
   }

   .solution-grid {
     gap: 80px;
   }

   .solution-card {
     height: 360px;
   }

   .solution-card h3 {
     font-size: 4.5rem;
     line-height: 1.3;
   }

   .circle-timer {
     transform: scale(2.75) translateY(-73px);
   }

   .mcq-section .page-logo {
     width: 860px;
     margin-top: 50px;
     margin-right: 50px;
   }

   .question-progress {
     transform: translateY(-70px);
   }

   .question-progress p,
   .question-dot.active {
     font-size: 8rem;
   }

   .question-card {
     padding: 80px;
   }

   .question-card h3 {
     font-size: 4rem;
     line-height: 1.2;
   }

   .question-card .q-img {
     padding: 80px 0;
   }

   #questionSubText {
     padding: 40px 0 0 0;
   }

   .option-btn {
     font-size: 3.3rem;
   }

   .option-btn .option-text span {
     font-size: 3rem;
     line-height: 1.2;
   }

   .option-btn .option-letter {
     height: 70px;
     width: 60px;
   }

   #triviaModal .modal {
     padding: 120px 120px 200px 120px;
     position: relative;
   }

   #triviaModal .modal-icon img,
   #timeUpModal .modal-icon img {
     width: 550px;
   }

   .textWrapper p {
     font-size: 4rem;
     line-height: 1.25;
   }

   #triviaModal .q-img {
     margin: 70px 0 40px 0;
   }

   #triviaNextBtn {
     width: 650px;
   }

   .textWrapper {
     padding: 30px 0 70px 0;
   }

   #timeUpModal .modal,
   #resultModal .modal {
     padding: 120px 120px 200px 120px;
   }

   img.qr-code {
     width: 420px;
   }

   #timeUpModal h4,
   #resultModal h4 {
     font-size: 4rem;
   }

   #timeUpModalResultScore,
   #resultScore {
     font-size: 6rem;
   }

   #leaderBoardBtn {
     width: 600px;
   }
 }

 @media (min-width: 1707px) {

   .hero-icon {
     width: 80%;
     margin: 0 auto;
   }

   .home-bottom {
     position: absolute;
     bottom: 90px;
   }

   .container {
     width: 95%;
   }

   .register-page .rules-inner {
     transform: translateY(25px);
   }

   .form-card {
     height: 80vh;
     padding: 0 40px 40px 60px;
   }

   .form-card h2 {
     font-size: 3.5rem;
   }

   .form-heading h3 {
     font-size: 2.8rem;
   }

   .score-inner .score-item h2 {
     font-size: 2.3rem;
   }

   .rules-list ul li {
     font-size: 1.2rem;

   }



   #solutionPhase, .mcq-section {
     background-position: center center;
     background-size: 100% 100%;
   }


   .question-progress p, .question-dot.active {
    font-size: 3rem;
   }

   .question-card h3 {
    font-size: 1.55rem;
   }

   .solution-grid {
    gap: 30px;
   }


   .question-card {
    padding: 35px 10px;
   }

   .option-btn {
    font-size: 1.4rem;
   }

 }