/* 소개 페이지(about.html)만 쓰는 스타일. 예전에는 템플릿의 인라인 스타일이었다. base.css 다음에 싣는다. */

.about-main {
    background: var(--bg-secondary);
}

.about-hero-shell {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
}

.about-hero-inner {
    max-width: 1080px;
    margin: 0 auto;
    padding: 56px 24px 0;
}

.about-hero-content {
    display: grid;
    grid-template-columns: minmax(0, 1.12fr) minmax(300px, 0.88fr);
    gap: 44px;
    align-items: center;
    padding-bottom: 34px;
}

.about-hero-logo {
    height: 74px;
    width: auto;
    object-fit: contain;
    margin-bottom: 18px;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.08));
}

.about-title {
    margin: 0;
    color: var(--text-primary);
    font-size: 42px;
    line-height: 1.24;
    font-weight: 800;
    letter-spacing: 0;
}

.about-lead {
    margin: 18px 0 0;
    max-width: 680px;
    color: var(--text-secondary);
    font-size: 17px;
    line-height: 1.7;
}

.about-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 28px;
}

.about-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 0 20px;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 700;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.about-cta-primary {
    background: var(--primary-color);
    color: #fff;
}

.about-cta-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

.about-cta-secondary {
    background: var(--bg-primary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.about-cta-secondary:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-1px);
}

.about-checklist {
    padding: 4px 0;
}

.about-checklist-title {
    margin: 0 0 18px;
    color: var(--text-primary);
    font-size: 22px;
    font-weight: 800;
}

.about-check-item {
    display: grid;
    grid-template-columns: 34px minmax(0, 1fr);
    gap: 14px;
    align-items: start;
    padding: 18px 0;
    border-top: 1px solid var(--border-color);
}

.about-check-item:first-of-type {
    border-top: 0;
    padding-top: 0;
}

.about-check-icon {
    width: 34px;
    height: 34px;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(16, 185, 129, 0.14);
    color: var(--success-color);
    font-size: 20px;
    font-weight: 800;
    line-height: 1;
}

.about-check-name {
    color: var(--text-primary);
    font-size: 17px;
    font-weight: 800;
}

.about-check-desc {
    margin-top: 4px;
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.5;
}

.about-content {
    max-width: 1080px;
    margin: 0 auto;
    padding: 44px 24px 56px;
}

.about-block {
    padding: 28px 0;
    border-top: 1px solid var(--border-color);
}

.about-block:first-child {
    border-top: 0;
    padding-top: 0;
}

.about-block-header {
    display: flex;
    justify-content: space-between;
    gap: 28px;
    align-items: flex-end;
    margin-bottom: 22px;
}

.about-block-title {
    margin: 0;
    color: var(--text-primary);
    font-size: 26px;
    font-weight: 800;
    letter-spacing: 0;
}

.about-block-copy {
    margin: 0;
    max-width: 520px;
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.6;
}

.about-info-grid,
.about-steps {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.about-info-item,
.about-step {
    min-width: 0;
    padding: 2px 0 0;
}

.about-info-icon {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 14px;
    background: rgba(255, 107, 53, 0.1);
    color: var(--primary-color);
    font-size: 18px;
    font-weight: 800;
}

.about-info-title,
.about-step-title {
    margin: 0 0 8px;
    color: var(--text-primary);
    font-size: 18px;
    font-weight: 800;
}

.about-info-copy,
.about-step-copy {
    margin: 0;
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.6;
}

.about-step-number {
    margin-bottom: 10px;
    color: var(--primary-color);
    font-size: 13px;
    font-weight: 800;
}

.about-mobile-app {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(280px, 360px);
    gap: 28px;
    align-items: start;
    margin-top: 12px;
    padding: 26px 0 0;
    border-top: 1px solid var(--border-color);
}

.about-soon-pill {
    display: inline-flex;
    width: fit-content;
    margin-bottom: 12px;
    padding: 6px 10px;
    border-radius: 999px;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    font-size: 12px;
    font-weight: 800;
}

.about-mobile-app-title {
    margin: 0 0 10px;
    color: var(--text-primary);
    font-size: 24px;
    font-weight: 800;
}

.about-mobile-app-copy {
    margin: 0;
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.6;
}

.about-soon-list {
    display: grid;
    gap: 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.about-soon-item {
    padding: 13px 0;
    color: var(--text-primary);
    font-size: 15px;
    font-weight: 600;
    border-top: 1px solid var(--border-color);
}

.about-soon-item:first-child {
    border-top: 0;
}

@media (max-width: 900px) {
    .about-hero-content,
    .about-mobile-app {
        grid-template-columns: 1fr;
    }

    .about-block-header {
        display: block;
    }

    .about-block-copy {
        margin-top: 8px;
    }
}

@media (max-width: 768px) {
    .about-hero-inner {
        padding: 32px 16px 0;
    }

    .about-hero-content {
        gap: 24px;
        padding-bottom: 24px;
    }

    .about-hero-logo {
        height: 58px;
        margin-bottom: 14px;
    }

    .about-title {
        font-size: 30px;
    }

    .about-lead {
        font-size: 15px;
        line-height: 1.65;
    }

    .about-actions {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 10px;
        margin-top: 22px;
    }

    .about-cta {
        min-height: 46px;
        padding: 0 12px;
        font-size: 14px;
    }

    .about-checklist-title {
        font-size: 20px;
    }

    .about-check-item {
        grid-template-columns: 30px minmax(0, 1fr);
        gap: 11px;
        padding: 14px 0;
    }

    .about-check-icon {
        width: 30px;
        height: 30px;
        border-radius: 10px;
        font-size: 18px;
    }

    .about-check-name {
        font-size: 15px;
    }

    .about-check-desc {
        font-size: 13px;
    }

    .about-content {
        padding: 28px 16px 40px;
    }

    .about-block {
        padding: 24px 0;
    }

    .about-block-title {
        font-size: 22px;
    }

    .about-info-grid,
    .about-steps {
        grid-template-columns: 1fr;
        gap: 18px;
    }

    .about-info-item,
    .about-step {
        padding-bottom: 16px;
        border-bottom: 1px solid var(--border-color);
    }

    .about-info-item:last-child,
    .about-step:last-child {
        padding-bottom: 0;
        border-bottom: 0;
    }
}

@media (max-width: 420px) {
    .about-actions {
        grid-template-columns: 1fr;
    }
}