* {
           margin: 0;
           padding: 0;
           box-sizing: border-box;
           font-family: 'Inter', 'Helvetica Neue', sans-serif;

           --bg-color: #d13f3f;
           --bg-color-hover: hsl(0, 61%, 40%);
       }

       body {
           min-height: 100vh;
           height: 100vh;
           display: flex;
           background-color: #050505;
           overflow: hidden;
           align-items: center;
           justify-content: center;
       }

       /* main content */

       header {
           height: 5rem;
           padding: 1rem;
       }

       header h1 {
        font-size: 40px;
        font-weight: lighter;
        color: white;
       }

       header p {
        font-size: 15px;
        font-style: italic;
        color: whitesmoke;
        font-weight: bolder;
        opacity: 0.8;
       }

       main {
           flex: 1;
           padding: 1rem;
           height: 85vh;
           margin-top: 10px;
       }

       .timeline-section {
           height: 99%;
           overflow-y: scroll;
           padding: 10px 15px;
           -ms-overflow-style: none;
           scrollbar-width: none;
       }

       .timeline-items {
           max-width: 1000px;
           margin: auto;
           display: flex;
           flex-wrap: wrap;
           position: relative;
       }

       .timeline-items::before {
           content: '';
           position: absolute;
           width: 5px;
           height: 100%;
           background-color: rgba(255, 255, 255, 0.253);
           left: calc(50% - 1px);
           border-radius: 10px;
       }

       .timeline-item {
           margin-bottom: 40px;
           width: 100%;
           position: relative;
       }

       .timeline-item:last-child {
           margin-bottom: 0;
       }

       .timeline-item:nth-child(odd) {
           padding-right: calc(50% + 30px);
           text-align: right;
       }

       .timeline-item:nth-child(even) {
           padding-left: calc(50% + 30px);
       }

       .timeline-dot {
           height: 21px;
           width: 21px;
           background-color: var(--bg-color);
           position: absolute;
           left: calc(50% - 8px);
           border-radius: 50%;
           top: 10px;
       }

       .timeline-date {
           font-size: 20px;
           font-weight: 800;
           color: whitesmoke;
           margin: 6px 0 15px;
       }

       .timeline-content {
           background: rgba(255, 255, 255, 0.096);
           backdrop-filter: blur(10px);
           -webkit-backdrop-filter: blur(10px);
           border: 1px solid rgba(255, 255, 255, 0.2);
           box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.15);
           border-radius: 1rem;
           padding: 30px;
           transition: 0.3s ease;
       }

       .timeline-content:hover {
           transform: scale(1.05);
       }

       .timeline-content h3 {
           font-size: 20px;
           color: whitesmoke;
           margin: 0 0 10px;
           font-weight: bolder;
       }

       .timeline-content p {
           color: whitesmoke;
           opacity: 0.8;
           font-size: 16px;
           font-weight: 400;
           line-height: 19px;
       }

       .timeline-content span {
           color: var(--bg-color);
           font-weight: bold;
       }

       .timeline-content a {
           text-decoration: none;
           background-color: var(--bg-color);
           padding: 1rem;
           color: whitesmoke;
           border-radius: 2rem;
           font-weight: bolder;
           transition: .5s ease;
       }

       .timeline-content a:hover {
           background-color: var(--bg-color-hover);
       }

       footer {
           height: 2.5rem;
           text-align: center;
           color: whitesmoke;
           opacity: 0.8;
           font-weight: bolder;
           font-size: 15px;
       }

       footer a {
        color: var(--bg-color);
           opacity: 100;
       }

       /* background */

       .gradient-background {
           position: absolute;
           top: 0;
           left: 0;
           width: 100%;
           height: 100%;
           z-index: 1;
           overflow: hidden;
       }

       .gradient-sphere {
           position: absolute;
           border-radius: 50%;
           filter: blur(60px);
       }

       .sphere-1 {
           width: 40vw;
           height: 40vw;
           background: linear-gradient(40deg, rgba(255, 0, 128, 0.8), rgba(255, 102, 0, 0.4));
           top: -10%;
           left: -10%;
           animation: float-1 15s ease-in-out infinite alternate;
       }

       .sphere-2 {
           width: 45vw;
           height: 45vw;
           background: linear-gradient(240deg, rgba(119, 2, 27, 0.8), rgba(255, 0, 64, 0.4));
           bottom: -20%;
           right: -10%;
           animation: float-2 18s ease-in-out infinite alternate;
       }

       .sphere-3 {
           width: 30vw;
           height: 30vw;
           background: linear-gradient(120deg, rgba(255, 89, 89, 0.5), rgba(249, 98, 98, 0.3));
           top: 60%;
           left: 20%;
           animation: float-3 20s ease-in-out infinite alternate;
       }

       .noise-overlay {
           position: absolute;
           top: 0;
           left: 0;
           width: 100%;
           height: 100%;
           opacity: 0.05;
           z-index: 5;
           background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
       }

       .grid-overlay {
           position: absolute;
           top: 0;
           left: 0;
           width: 100%;
           height: 100%;
           background-size: 40px 40px;
           background-image:
               linear-gradient(to right, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
               linear-gradient(to bottom, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
           z-index: 2;
       }

       .glow {
           position: absolute;
           width: 40vw;
           height: 40vh;
           background: radial-gradient(circle, rgba(72, 0, 255, 0.15), transparent 70%);
           top: 50%;
           left: 50%;
           transform: translate(-50%, -50%);
           z-index: 2;
           animation: pulse 8s infinite alternate;
           filter: blur(30px);
       }

       .main-content {
           height: 100vh;
           display: flex;

           /* Direction of the items, can be row or column */
           flex-direction: column;
           z-index: 2;
       }

       @keyframes float-1 {
           0% {
               transform: translate(0, 0) scale(1);
           }

           100% {
               transform: translate(10%, 10%) scale(1.1);
           }
       }

       @keyframes float-2 {
           0% {
               transform: translate(0, 0) scale(1);
           }

           100% {
               transform: translate(-10%, -5%) scale(1.15);
           }
       }

       @keyframes float-3 {
           0% {
               transform: translate(0, 0) scale(1);
               opacity: 0.3;
           }

           100% {
               transform: translate(-5%, 10%) scale(1.05);
               opacity: 0.6;
           }
       }

       @keyframes pulse {
           0% {
               opacity: 0.3;
               transform: translate(-50%, -50%) scale(0.9);
           }

           100% {
               opacity: 0.7;
               transform: translate(-50%, -50%) scale(1.1);
           }
       }

       @media(max-width: 767px) {

            main {
                margin-top: 20px;
                height: 80vh;
            }

           .timeline-section {
               padding: 10px 5px;
           }

           .timeline-items::before {
               left: 7px;
           }

           .timeline-item:nth-child(odd) {
               padding-right: 0;
               text-align: left;
           }

           .timeline-item:nth-child(odd),
           .timeline-item:nth-child(even) {
               padding-left: 37px;
           }

           .timeline-dot {
               left: 0;
           }
       }