section[data-module="az-milestone"] {
    width: 100%;
}

.az-milestone,
.az-milestone * {
    box-sizing: border-box;
}

.az-milestone {
    position: relative;
    width: 100%;
    --az-line: #b8c7dc;
    --az-primary: #2f66b3;
    --az-year: #1f2937;
    --az-heading: #1f2937;
    --az-description: #4b5563;
    --az-card-bg: #ffffff;
    --az-item-width: 20%;
}

.az-milestone__viewport {
    width: 100%;
}

.az-milestone--slider .az-milestone__viewport {
    overflow: hidden;
}

.az-milestone--static .az-milestone__viewport,
.az-milestone--style-2 .az-milestone__viewport,
.az-milestone--style-3 .az-milestone__viewport {
    overflow: visible;
}

.az-milestone__track {
    transition: transform 0.35s ease;
    will-change: transform;
}

.az-milestone__item {
    position: relative;
}

.az-milestone__year {
    font-size: 15px;
    line-height: 1;
    font-weight: 700;
    color: var(--az-year);
}

.az-milestone__title {
    margin: 0 0 10px;
    font-size: 16px;
    line-height: 1.25;
    font-weight: 700;
    color: var(--az-heading);
}

.az-milestone__description {
    margin: 0;
    font-size: 14px;
    line-height: 1.5;
    color: var(--az-description);
}

/* Design 1: horizontal circle timeline, matching the provided reference. */
.az-milestone--style-1 .az-milestone__track {
    display: flex;
    align-items: flex-start;
}

.az-milestone--style-1 .az-milestone__item {
    flex: 0 0 var(--az-item-width);
    min-width: var(--az-item-width);
    padding: 0 18px;
}

.az-milestone--style-1.az-milestone--slider .az-milestone__item {
    flex-basis: 20%;
    min-width: 20%;
}

.az-milestone--style-1 .az-milestone__item::before,
.az-milestone--style-1 .az-milestone__item::after {
    content: "";
    position: absolute;
    top: 28px;
    height: 2px;
    background: var(--az-line);
    z-index: 0;
}

.az-milestone--style-1 .az-milestone__item::before {
    left: 0;
    right: 50%;
}

.az-milestone--style-1 .az-milestone__item::after {
    left: 50%;
    right: 0;
}

.az-milestone--style-1 .az-milestone__item:first-child::before,
.az-milestone--style-1 .az-milestone__item:last-child::after {
    display: none;
}

.az-milestone--style-1.az-milestone--slider .az-milestone__item:first-child::before,
.az-milestone--style-1.az-milestone--slider .az-milestone__item:last-child::after {
    display: block;
}

.az-milestone--style-1 .az-milestone__node {
    position: relative;
    z-index: 1;
    width: 58px;
    height: 58px;
    margin: 0 auto 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--az-primary);
    border-radius: 999px;
    background: #ffffff;
    box-shadow: 0 2px 8px rgba(47, 102, 179, 0.12);
}

.az-milestone--style-1 .az-milestone__node::before,
.az-milestone--style-1 .az-milestone__node::after {
    content: "";
    position: absolute;
    top: 50%;
    width: 6px;
    height: 6px;
    border-radius: 999px;
    background: var(--az-primary);
    transform: translateY(-50%);
}

.az-milestone--style-1 .az-milestone__node::before {
    left: -21px;
}

.az-milestone--style-1 .az-milestone__node::after {
    right: -21px;
}

.az-milestone--style-1 .az-milestone__item:first-child .az-milestone__node::before,
.az-milestone--style-1 .az-milestone__item:last-child .az-milestone__node::after {
    display: none;
}

.az-milestone--style-1.az-milestone--slider .az-milestone__item:first-child .az-milestone__node::before,
.az-milestone--style-1.az-milestone--slider .az-milestone__item:last-child .az-milestone__node::after {
    display: block;
}

.az-milestone--style-1 .az-milestone__content {
    text-align: left;
}

/* Design 2: staggered card timeline. */
.az-milestone--style-2 .az-milestone__track {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
    align-items: start;
}

.az-milestone--style-2 .az-milestone__item {
    min-width: 0;
    padding-top: 74px;
}

.az-milestone--style-2 .az-milestone__node {
    position: absolute;
    top: 0;
    left: 0;
    width: 58px;
    height: 58px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--az-primary);
    border-radius: 999px;
    background: #ffffff;
    box-shadow: 0 8px 22px rgba(15, 23, 42, 0.1);
}

.az-milestone--style-2 .az-milestone__item::before {
    content: "";
    position: absolute;
    top: 28px;
    left: 58px;
    right: 0;
    height: 2px;
    background: var(--az-line);
}

.az-milestone--style-2 .az-milestone__content {
    min-height: 150px;
    padding: 22px;
    border-left: 4px solid var(--az-primary);
    border-radius: 6px;
    background: var(--az-card-bg);
    box-shadow: 0 10px 28px rgba(15, 23, 42, 0.08);
}

@media (min-width: 900px) {
    .az-milestone--style-2 .az-milestone__item:nth-child(even) {
        margin-top: 44px;
    }
}

/* Design 3: compact milestone cards. */
.az-milestone--style-3 .az-milestone__track {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 18px;
}

.az-milestone--style-3 .az-milestone__item {
    min-width: 0;
    padding: 22px;
    border: 1px solid var(--az-line);
    border-radius: 6px;
    background: var(--az-card-bg);
}

.az-milestone--style-3 .az-milestone__node {
    width: auto;
    height: auto;
    margin: 0 0 14px;
    display: flex;
    justify-content: flex-start;
    border: 0;
    background: transparent;
    box-shadow: none;
}

.az-milestone--style-3 .az-milestone__year {
    display: inline-flex;
    align-items: center;
    min-height: 32px;
    padding: 7px 12px;
    border-radius: 999px;
    border: 1px solid var(--az-line);
    background: #ffffff;
    color: var(--az-primary);
}

.az-milestone--style-3 .az-milestone__title {
    font-size: 17px;
}

.az-milestone__controls {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 28px;
}

.az-milestone--slider .az-milestone__controls {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    margin-top: 0;
    padding: 0 12px;
    justify-content: space-between;
    align-items: center;
    pointer-events: none;
    transform: translateY(-50%);
}

.az-milestone--slider .az-milestone__controls .az-milestone__arrow {
    pointer-events: auto;
}

.az-milestone__arrow {
    width: 42px;
    height: 42px;
    border: 1px solid var(--az-primary);
    border-radius: 999px;
    background: var(--az-primary);
    color: #ffffff;
    font-size: 30px;
    line-height: 1;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.az-milestone__arrow:hover,
.az-milestone__arrow:focus {
    background: #244f9d;
    border-color: #244f9d;
    color: #ffffff;
    transform: scale(1.05);
}

.az-milestone__arrow:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

@media only screen and (max-width: 1440px) and (min-width: 1200px) {
    .az-milestone--style-1 .az-milestone__item {
        padding: 0 14px;
    }
}

@media (min-width: 768px) and (max-width: 980px) {
    .az-milestone--style-1 .az-milestone__item,
    .az-milestone--style-1.az-milestone--slider .az-milestone__item {
        flex-basis: 33.333%;
        min-width: 33.333%;
    }
}

@media (max-width: 767px) {
    .az-milestone--style-1 .az-milestone__item,
    .az-milestone--style-1.az-milestone--slider .az-milestone__item {
        flex-basis: 100%;
        min-width: 100%;
        padding: 0 16px;
    }

    .az-milestone--style-1.az-milestone--static .az-milestone__track {
        flex-direction: column;
        gap: 30px;
    }

    .az-milestone--style-1.az-milestone--static .az-milestone__item::before,
    .az-milestone--style-1.az-milestone--static .az-milestone__item::after,
    .az-milestone--style-1.az-milestone--static .az-milestone__node::before,
    .az-milestone--style-1.az-milestone--static .az-milestone__node::after {
        display: none;
    }

    .az-milestone--style-1 .az-milestone__content {
        max-width: 320px;
        margin: 0 auto;
        text-align: center;
    }

    .az-milestone--style-2 .az-milestone__track,
    .az-milestone--style-3 .az-milestone__track {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .az-milestone--style-1 .az-milestone__node,
    .az-milestone--style-2 .az-milestone__node {
        width: 54px;
        height: 54px;
    }

    .az-milestone__title {
        font-size: 15px;
    }

    .az-milestone__description {
        font-size: 13px;
    }
}