/* side-left.php — .step-units, .step-unit, .step-btn, .start-nav（左サイドバーナビゲーション） */

/* --- ナビゲーション --- */
.step-units {
    background-color: rgba(255,255,255,0.9);
    padding: 36px 56px 42px 44px;
    margin-bottom: 24px;
}
.step-unit {
    display: grid;
    grid-template-columns: 70px auto;
    gap: 8px;
    position: relative;
    z-index: 0;
}
.step-unit:not(:last-child) {
    margin-bottom: 24px;
}
.step-unit::before {
    content: "";
    display: block;
    position: absolute;
    top: 0;
    left: 0;
    z-index: -1;
}
.step-unit:nth-child(1)::before {
    background: var(--img-step-1) center / contain no-repeat;
    width: 109px;
    height: 85px;
    top: -20px;
    left: -16px;
}
.step-unit:nth-child(2)::before {
    background: var(--img-step-2) center / contain no-repeat;
    width: 104px;
    height: 86px;
    top: -20px;
    left: -10px;
}
.step-unit:nth-child(3)::before {
    background: var(--img-step-3) center / contain no-repeat;
    width: 105px;
    height: 88px;
    top: -13px;
    left: -16px;
}
.step-unit:nth-child(4)::before {
    background: var(--img-step-4) center / contain no-repeat;
    width: 155px;
    height: 90px;
    top: -18px;
    left: -35px;
}
.step-label {
    font-size: 12px;
    text-align: center;
    line-height: 1;
}
.step-label__number {
    font-weight: bold;
    font-style: italic;
    display: block;
    margin: 3px 0 5px;
}
.step-label__big {
    font-size: 17px;
}
.step-btn {
    display: block;
    width: 100%;
    padding: 10px 0;
    border: 2px solid var(--border-color);
    text-align: center;
    color: #333;
    font-weight: bold;
    font-size: 16px;
    line-height: 1;
    background: #fff;
    transition: all 0.2s ease;
    position: relative;
}
.step-btn:not(:last-child) {
    margin-bottom: 6px;
}
.step-btn:last-child {
    transform: translateX(24px);
}
.step-btn::before {
    content: "";
    display: block;
    width: 6px;
    height: 2px;
    background: #fff;
    position: absolute;
    top: -2px;
    left: 30px;
}
.step-btn::after {
    content: "";
    display: block;
    width: 6px;
    height: 2px;
    background: #000;
    position: absolute;
    bottom: -2px;
    left: 107px;
    border-left: 4px solid #fff;
    border-right: 4px solid #fff;
    box-sizing: content-box;
    transition: all 0.2s ease;
}
.step-btn .step-btn__inner {
    display: block;
}
.step-btn .step-btn__inner::before {
    content: "";
    display: block;
    position: absolute;
    width: 2px;
    height: 10px;
    background: #fff;
    top: 14px;
    right: -2px;
    transition: all 0.2s ease;
}
.step-btn .step-btn__inner::after {
    content: "";
    display: block;
    position: absolute;
    width: 2px;
    height: 7px;
    background: #000;
    top: 14px;
    right: -2px;
    transform: rotate(-60deg);
    transform-origin: top left;
    transition: all 0.2s ease;
}
.step-btn:hover,
.step-btn.active {
    color: var(--accent-blue);
    border-color: var(--accent-blue);
    opacity: 1;
}
.step-btn:hover::after,
.step-btn.active::after,
.step-btn:hover .step-btn__inner::after,
.step-btn.active .step-btn__inner::after {
    background: var(--accent-blue);
}
.start-nav {
    max-width: 339px;
    margin-left: auto;
    margin-right: auto;
    padding: 16px 24px;
    background-color: #EEF8FF;
    text-align: center;
}
.start-nav p {
    font-size: 12px;
    font-weight: 700;
    margin: 0 0 8px;
    line-height: 140%;
}
.start-nav .btn {
    width: 100%;
}

/* Coming Soon（$isComingSoon = true の期間のみ適用。falseに戻せば通常スタイルに自動復帰） */
.step-unit.is-comingsoon .step-label::after {
    content: "Coming Soon";
    white-space: nowrap;
    color: #DA0000;
    font-size: 10px;
    line-height: 1;
    font-style: italic;
    margin-top: 6px;
    display: block;
}
.step-unit.is-comingsoon .step-btn {
    pointer-events: none;
    border-color: #DFDFDF;
    color: rgba(51, 51, 51, 0.3);
}
.step-unit.is-comingsoon .step-btn::after {
    background-color: #DFDFDF;
}
.step-unit.is-comingsoon .step-btn .step-btn__inner::after {
    background-color: #DFDFDF;
}
.start-nav.is-comingsoon {
    position: relative;
}
.start-nav.is-comingsoon::before {
    content: "Coming Soon";
    display: grid;
    place-content: center;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.9);
    position: absolute;
    top: 0;
    left: 0;
    color: #DA0000;
    font-size: 12px;
    line-height: 1;
    font-style: italic;
}
.start-nav.is-comingsoon * {
    pointer-events: none;
}