@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;700&display=swap");

:root {
    --white: #fff;
    --black: #323135;
    --crystal: #a8dadd;
    --columbia-blue: #cee9e4;
    --midnight-green: #01565b;
    --yellow: #e5f33d;
    --timeline-gradient: rgba(206, 233, 228, 1) 0%, rgba(206, 233, 228, 1) 50%,
    rgba(206, 233, 228, 0) 100%;
    --dark-blue: #000d21;
    --gray-blue: #3f4c5f;
    --light-gold: #ccb47a;
    --gold: #b59a5a;
}

*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/*button {*/
/*    background: transparent;*/
/*    border: none;*/
/*    cursor: pointer;*/
/*    outline: none;*/
/*}*/

/*a {*/
/*    color: inherit;*/
/*}*/

/*img {*/
/*    max-width: 100%;*/
/*    height: auto;*/
/*}*/

/*body {*/
/*    font: normal 16px/1.5 "Inter", sans-serif;*/
/*    background: var(--columbia-blue);*/
/*    color: var(--black);*/
/*    margin-bottom: 50px;*/
/*}*/

/* .section SECTION
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.section {
    padding: 50px 0;
}

.section .container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.section h1 {
    font-size: 2.5rem;
    line-height: 1.25;
}

.section h2 {
    font-size: 1.3rem;
}

.section.dark-blue {
    background: var(--dark-blue);
}

/* TIMELINE
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.timeline {
    position: relative;
    white-space: nowrap;
    max-width: 1400px;
    padding: 0 10px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 320px auto;
    grid-gap: 20px;
}

.timeline::before,
.timeline::after {
    content: "";
    position: absolute;
    top: 0;
    bottom: 30px;
    width: 100px;
    z-index: 2;
}

/*.timeline::after {*/
/*    right: 0;*/
/*    height: 100%;*/
/*    background: linear-gradient(270deg, var(--timeline-gradient));*/
/*}*/

/*.timeline::before {*/
/*    left: 340px;*/
/*    height: 100%;*/
/*    background: linear-gradient(90deg, var(--timeline-gradient));*/
/*}*/

.timeline .info {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 20px 40px;
    color: var(--white);
    background: var(--gold);
    white-space: normal;
    border-radius: 10px;
}

.timeline .info img {
    margin-bottom: 20px;
}

.timeline .info p {
    margin-top: 10px;
    color: var(--crystal);
}

.timeline .info a {
    text-decoration: none;
}

.timeline-controls {
    position: absolute;
    bottom: 20px;
    left: 340px;
    right: 20px;
    display: flex;
    justify-content: space-between;
    z-index: 5;
    pointer-events: none;
}

.timeline-controls button {
    pointer-events: auto;
    background: var(--white);
    color: var(--gold);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2rem;
    font-weight: bold;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 3px;
    transition: background 0.3s, color 0.3s;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

.timeline-controls button:hover:not(:disabled) {
    background: var(--dark-blue);
    color: var(--white);
}

.timeline-controls button:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.timeline ol::-webkit-scrollbar {
    height: 12px;
}

.timeline ol::-webkit-scrollbar-thumb,
.timeline ol::-webkit-scrollbar-track {
    border-radius: 92px;
}

.timeline ol::-webkit-scrollbar-thumb {
    background: var(--gold);
}

.timeline ol::-webkit-scrollbar-track {
    background: var(--gold);
}

.timeline ol {
    font-size: 0;
    padding: 250px 0;
    transition: all 1s;
    overflow-x: scroll;
    scroll-snap-type: x mandatory;
    scrollbar-color: var(--gold) var(--dark-blue);
}

.timeline ol li {
    position: relative;
    display: inline-block;
    list-style-type: none;
    width: 160px;
    height: 5px;
    background: var(--white);
    scroll-snap-align: start;
}

.timeline ol li:last-child {
    width: 340px;
}

.timeline ol li:not(:first-child) {
    margin-left: 14px;
}

.timeline ol li:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 50%;
    left: calc(100% - 1px);
    bottom: 0;
    width: 16px;
    height: 16px;
    transform: translateY(-50%);
    border-radius: 50%;
    background: var(--gold);
    z-index: 1;
}

.timeline ol li div {
    position: absolute;
    left: calc(100% + 7px);
    width: 280px;
    padding: 15px;
    font-size: 1rem;
    white-space: normal;
    color: var(--black);
    background: var(--white);
    border-radius: 0 10px 10px 10px;
}

.timeline ol li div::before {
    content: "";
    position: absolute;
    top: 100%;
    left: 0;
    width: 0;
    height: 0;
    border-style: solid;
}

.timeline ol li:nth-child(odd) div {
    top: -16px;
    transform: translateY(-100%);
    border-radius: 10px 10px 10px 0;
}

.timeline ol li:nth-child(odd) div::before {
    top: 100%;
    border-width: 8px 8px 0 0;
    border-color: var(--white) transparent transparent transparent;
}

.timeline ol li:nth-child(even) div {
    top: calc(100% + 16px);
}

.timeline ol li:nth-child(even) div::before {
    top: -8px;
    border-width: 8px 0 0 8px;
    border-color: transparent transparent transparent var(--white);
}

.timeline time {
    display: block;
    font-size: 1.4rem;
    font-weight: bold;
    margin-bottom: 8px;
    color: var(--dark-blue);
}

/* GENERAL MEDIA QUERIES
–––––––––––––––––––––––––––––––––––––––––––––––––– */
@media screen and (max-width: 800px) {
    .timeline {
        display: block;
    }

    .timeline-controls {
        position: static;
        display: flex;
        justify-content: center;
        gap: 10px;
        margin-bottom: 20px;
        pointer-events: auto;
    }

    .timeline::before,
    .timeline::after {
        width: 50px;
    }

    .timeline::before {
        left: 0;
    }

    .timeline .info {
        display: none;
    }
}

/* FOOTER STYLES
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.page-footer {
    position: fixed;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    padding: 5px;
    z-index: 2;
    color: var(--black);
    background: var(--columbia-blue);
}

.page-footer a {
    display: flex;
    margin-left: 4px;
}