/* ============================================
   Rotatrim About Page - rotatrim-korea theme
   Color: --primary-blue (#0c3ea4) blue scheme
   ============================================ */

/* ── Hero ── */
.rt-about-hero {
    position: relative;
    height: 45vh;
    min-height: 340px;
    max-height: 480px;
    background: #030717;
    overflow: hidden;
}

.rt-about-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(3, 7, 23, 0.95), rgba(12, 62, 164, 0.3));
    z-index: 1;
}

.rt-about-hero-overlay {
    position: relative;
    z-index: 2;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    padding: 80px 0 60px;
}

.rt-about-hero-badge {
    display: inline-block;
    background: var(--primary-blue, #0c3ea4);
    color: #fff;
    padding: 5px 14px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 1px;
    margin-bottom: 20px;
}

.rt-about-hero-title {
    font-family: var(--font-en, 'GmarketSans', sans-serif);
    font-size: 3.5rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 16px;
    line-height: 1.2;
}

.rt-about-hero-sub {
    font-size: 1.1rem;
    color: rgba(255,255,255,0.7);
    line-height: 1.6;
}

/* ── Overview ── */
.rt-about-overview {
    padding: 80px 0;
    background: #fff;
}

.rt-about-overview-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 48px;
    align-items: start;
}

.rt-about-overview-text .section-subtitle {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--primary-blue, #0c3ea4);
    margin-bottom: 12px;
}

.rt-about-overview-text .section-title {
    font-family: var(--font-en, 'GmarketSans', sans-serif);
    font-size: 2rem;
    font-weight: 700;
    color: #111;
    margin-bottom: 24px;
    line-height: 1.3;
}

.rt-about-overview-text p {
    font-size: 15px;
    line-height: 1.85;
    color: #555;
    margin-bottom: 16px;
}

.rt-about-info-card {
    background: #f5f7fb;
    border-radius: 16px;
    padding: 32px;
    border: 1px solid #e8ecf4;
}

.rt-about-info-card h3 {
    font-family: var(--font-en, 'GmarketSans', sans-serif);
    font-size: 18px;
    font-weight: 700;
    color: #111;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--primary-blue, #0c3ea4);
}

.rt-about-info-table {
    width: 100%;
    border-collapse: collapse;
}

.rt-about-info-table tr {
    border-bottom: 1px solid #e0e4ec;
}

.rt-about-info-table tr:last-child {
    border-bottom: none;
}

.rt-about-info-table th {
    font-size: 13px;
    font-weight: 600;
    color: #666;
    padding: 10px 0;
    width: 80px;
    text-align: left;
    vertical-align: top;
}

.rt-about-info-table td {
    font-size: 14px;
    color: #333;
    padding: 10px 0;
}

/* ── Products ── */
.rt-about-products {
    padding: 80px 0;
    background: #030717;
}

.rt-about-products .section-title.text-white {
    color: #fff;
}

.rt-about-products .section-header {
    text-align: center;
    margin-bottom: 48px;
}

.rt-about-prod-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.rt-about-prod-card {
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 16px;
    padding: 32px 28px;
    transition: transform 0.3s ease, background 0.3s ease;
}

.rt-about-prod-card:hover {
    transform: translateY(-4px);
    background: rgba(255,255,255,0.1);
}

.rt-about-prod-icon {
    width: 52px;
    height: 52px;
    border-radius: 12px;
    background: var(--primary-blue, #0c3ea4);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    font-size: 22px;
    color: #fff;
}

.rt-about-prod-card h3 {
    font-family: var(--font-en, 'GmarketSans', sans-serif);
    font-size: 17px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 12px;
}

.rt-about-prod-card p {
    font-size: 14px;
    line-height: 1.7;
    color: rgba(255,255,255,0.6);
}

/* ── Core Technology ── */
.rt-about-tech {
    padding: 80px 0;
    background: #f5f7fb;
}

.rt-about-tech .section-header {
    text-align: center;
    margin-bottom: 48px;
}

.rt-about-tech .section-subtitle {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--primary-blue, #0c3ea4);
    margin-bottom: 12px;
}

.rt-about-tech .section-title {
    font-family: var(--font-en, 'GmarketSans', sans-serif);
    font-size: 2rem;
    font-weight: 700;
    color: #111;
}

.rt-about-tech-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.rt-about-tech-item {
    background: #fff;
    border-radius: 16px;
    padding: 32px 28px;
    border: 1px solid #e8ecf4;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.rt-about-tech-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.08);
}

.rt-about-tech-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(12, 62, 164, 0.08);
    color: var(--primary-blue, #0c3ea4);
    font-size: 20px;
    margin-bottom: 16px;
}

.rt-about-tech-item h4 {
    font-family: var(--font-kr, 'Pretendard', sans-serif);
    font-size: 16px;
    font-weight: 700;
    color: #111;
    margin-bottom: 10px;
}

.rt-about-tech-item p {
    font-size: 14px;
    line-height: 1.7;
    color: #666;
}

/* ── History ── */
.rt-about-history {
    padding: 80px 0;
    background: #082d7a;
}

.rt-about-history .section-header {
    text-align: center;
    margin-bottom: 48px;
}

.rt-about-history .section-title.text-white {
    color: #fff;
}

.rt-about-timeline {
    max-width: 700px;
    margin: 0 auto;
    position: relative;
    padding-left: 40px;
}

.rt-about-timeline::before {
    content: '';
    position: absolute;
    left: 8px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: rgba(255,255,255,0.2);
}

.rt-about-timeline-item {
    position: relative;
    padding: 0 0 32px 24px;
}

.rt-about-timeline-item:last-child {
    padding-bottom: 0;
}

.rt-about-timeline-item::before {
    content: '';
    position: absolute;
    left: -36px;
    top: 6px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--primary-blue, #0c3ea4);
    border: 2px solid #fff;
}

.rt-about-timeline-year {
    display: inline-block;
    font-family: var(--font-en, 'GmarketSans', sans-serif);
    font-size: 15px;
    font-weight: 700;
    color: #fff;
    background: rgba(255,255,255,0.12);
    padding: 4px 14px;
    border-radius: 20px;
    margin-bottom: 8px;
}

.rt-about-timeline-item p {
    font-size: 14px;
    line-height: 1.7;
    color: rgba(255,255,255,0.75);
}

/* ── Partner CTA ── */
.rt-about-partner {
    padding: 80px 0;
    background: #f5f7fb;
}

.rt-about-partner-content {
    text-align: center;
    max-width: 640px;
    margin: 0 auto;
}

.rt-about-partner-content .section-subtitle {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--primary-blue, #0c3ea4);
    margin-bottom: 12px;
}

.rt-about-partner-content .section-title {
    font-family: var(--font-en, 'GmarketSans', sans-serif);
    font-size: 2rem;
    font-weight: 700;
    color: #111;
    margin-bottom: 20px;
}

.rt-about-partner-content > p {
    font-size: 15px;
    line-height: 1.8;
    color: #555;
    margin-bottom: 24px;
}

.rt-about-partner-contact p {
    font-size: 14px;
    color: #666;
    margin-bottom: 6px;
}

.rt-about-partner-contact p i {
    color: var(--primary-blue, #0c3ea4);
    margin-right: 6px;
    width: 16px;
}

.rt-about-partner-contact {
    margin-bottom: 28px;
}

.rt-about-partner .btn.btn-blue {
    display: inline-block;
    background: var(--primary-blue, #0c3ea4);
    color: #fff;
    padding: 14px 32px;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    transition: background 0.3s ease;
}

.rt-about-partner .btn.btn-blue:hover {
    background: var(--rt-primary-dark, #082d7a);
}

/* ── Responsive ── */
@media (max-width: 1024px) {
    .rt-about-overview-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .rt-about-prod-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .rt-about-tech-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .rt-about-hero-title {
        font-size: 2.4rem;
    }

    .rt-about-hero-sub {
        font-size: 0.95rem;
    }

    .rt-about-overview,
    .rt-about-products,
    .rt-about-tech,
    .rt-about-history,
    .rt-about-partner {
        padding: 56px 0;
    }

    .rt-about-prod-grid {
        grid-template-columns: 1fr;
    }

    .rt-about-tech-grid {
        grid-template-columns: 1fr;
    }

    .rt-about-overview-text .section-title,
    .rt-about-tech .section-title,
    .rt-about-partner-content .section-title {
        font-size: 1.6rem;
    }
}

@media (max-width: 480px) {
    .rt-about-hero {
        min-height: 280px;
    }

    .rt-about-hero-title {
        font-size: 2rem;
    }

    .rt-about-info-card {
        padding: 24px 20px;
    }
}