/*
 * CHAMSPACE ABOUT — Giới Thiệu
 * Namespace: .cs-about-*
 * Đồng bộ style với trang chủ (eyeBrow, section padding, typography)
 */

/* ═══════════════════════════════════════════════════════════════
   1. HERO — TUYÊN NGÔN
   ═══════════════════════════════════════════════════════════════ */
.cs-about-hero {
    position: relative;
    width: 100%;
    height: clamp(500px, 75vh, 820px);
    border-radius: 16px;
    overflow: hidden;
    margin-bottom: 30px;
}
.cs-about-hero-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.cs-about-hero-veil {
    position: absolute;
    inset: 0;
    background: linear-gradient(155deg, rgba(0,0,0,0.10) 0%, rgba(0,0,0,0.0) 38%, rgba(0,0,0,0.72) 100%);
    border-radius: 16px;
}
.cs-about-hero-body {
    position: absolute;
    bottom: clamp(48px, 8vh, 88px);
    left: clamp(32px, 6vw, 64px);
    right: clamp(32px, 6vw, 64px);
}
.cs-about-hero-kicker {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: #E20612;
    background: rgba(226,6,18,0.18);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(226,6,18,0.20);
    padding: 6px 14px;
    border-radius: 4px;
    display: inline-block;
    margin-bottom: 16px;
}
.cs-about-hero-body h1 {
    font-size: clamp(3.2rem, 8vw, 7rem);
    font-weight: 800;
    color: #fff;
    line-height: 0.92;
    letter-spacing: -0.03em;
    text-shadow: 0 4px 48px rgba(0,0,0,0.40);
    margin: 0 0 18px;
}
.cs-about-hero-body h1 em {
    font-style: normal;
    color: #E20612;
}
.cs-about-hero-sub {
    font-size: clamp(14px, 1.8vw, 18px);
    color: rgba(255,255,255,0.65);
    max-width: 520px;
    line-height: 1.7;
    margin: 0 0 32px;
    font-weight: 400;
}
.cs-about-hero-scroll {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 12px;
    font-weight: 700;
    color: rgba(255,255,255,0.50);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    cursor: pointer;
    transition: color 0.25s;
}
.cs-about-hero-scroll:hover { color: #fff; }
.cs-about-hero-scroll svg { width: 18px; height: 18px; }

/* ═══════════════════════════════════════════════════════════════
   2. HÀNH TRÌNH (Timeline)
   ═══════════════════════════════════════════════════════════════ */
.cs-about-journey {
    padding: 50px 0;
    position: relative;
}

.cs-about-journey-wrap {
    display: flex;
    gap: 48px;
    align-items: flex-start;
}

.cs-about-journey-timeline {
    flex: 0 0 55%;
}

.cs-about-journey-visual {
    flex: 1;
    position: sticky;
    top: 100px;
    border-radius: 16px;
    overflow: hidden;
    aspect-ratio: 4/3;
    background: #e8e8e8;
}
.cs-about-journey-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* Step */
.cs-about-journey-step {
    position: relative;
    padding-left: 32px;
    padding-bottom: 48px;
}
.cs-about-journey-step:last-child { padding-bottom: 0; }

/* Vertical line */
.cs-about-journey-step::before {
    content: '';
    position: absolute;
    left: 8px;
    top: 18px;
    bottom: 0;
    width: 1px;
    background: rgba(0,0,0,0.08);
}
.cs-about-journey-step:last-child::before { display: none; }

/* Dot marker */
.cs-about-journey-marker {
    position: absolute;
    left: 0;
    top: 6px;
    width: 17px;
    height: 17px;
    border-radius: 50%;
    background: #E20612;
    border: 3px solid #fff;
    box-shadow: 0 0 0 2px rgba(226,6,18,0.25);
    z-index: 2;
}

.cs-about-journey-year {
    font-size: 14px;
    font-weight: 700;
    color: #E20612;
    letter-spacing: 0.08em;
    margin-bottom: 6px;
}

.cs-about-journey-title {
    font-size: clamp(20px, 2.5vw, 28px);
    font-weight: 800;
    color: #1a1a1a;
    margin: 0 0 8px;
    line-height: 1.15;
}

.cs-about-journey-desc {
    font-size: 14px;
    color: #666;
    line-height: 1.8;
    margin: 0;
    max-width: 440px;
}

/* ═══════════════════════════════════════════════════════════════
   3. TRIẾT LÝ THIẾT KẾ
   ═══════════════════════════════════════════════════════════════ */
.cs-about-philosophy {
    padding: 50px 0;
    position: relative;
}

.cs-about-philo-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.cs-about-philo-card {
    background: #fff;
    border: 1px solid #e5e5e5;
    border-radius: 16px;
    overflow: hidden;
    transition: box-shadow 0.3s;
}
.cs-about-philo-card:hover {
    box-shadow: 0 8px 30px rgba(0,0,0,0.06);
}

.cs-about-philo-img {
    width: 100%;
    aspect-ratio: 4/3;
    object-fit: cover;
    display: block;
    transition: transform 0.5s cubic-bezier(0.2,0.36,0.12,1);
}
.cs-about-philo-card:hover .cs-about-philo-img {
    transform: scale(1.04);
}

.cs-about-philo-body {
    padding: 24px;
}

.cs-about-philo-num {
    font-size: 28px;
    font-weight: 800;
    color: #E20612;
    letter-spacing: -0.03em;
    display: block;
    margin-bottom: 6px;
}

.cs-about-philo-body h3 {
    font-size: 18px;
    font-weight: 800;
    color: #1a1a1a;
    margin: 0 0 10px;
    line-height: 1.2;
}

.cs-about-philo-body p {
    font-size: 13px;
    color: #666;
    line-height: 1.7;
    margin: 0;
}

/* ═══════════════════════════════════════════════════════════════
   4. ĐỘI NGŨ (Nền Đen)
   ═══════════════════════════════════════════════════════════════ */
.cs-about-team {
    padding: 80px 0;
    position: relative;
    background: #0d0d0d;
    border-radius: 20px;
    margin: 30px 0;
}

.cs-about-team-inner {
    padding: 0 clamp(24px, 5vw, 48px);
}

.cs-about-team .home-v1-eyebrow-text { color: #E20612; }
.cs-about-team .home-v1-eyebrow-line { background: rgba(226,6,18,0.20); }

.cs-about-team-heading {
    font-size: clamp(32px, 5vw, 52px);
    font-weight: 800;
    color: #fff;
    letter-spacing: -0.03em;
    line-height: 1.05;
    margin: 0 0 40px;
}

.cs-about-team-layout {
    display: flex;
    gap: 48px;
    align-items: center;
}

.cs-about-team-img {
    flex: 0 0 50%;
    border-radius: 16px;
    overflow: hidden;
    aspect-ratio: 4/3;
    background: #222;
}
.cs-about-team-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.cs-about-team-quote {
    flex: 1;
}

.cs-about-team-quote blockquote {
    font-size: clamp(16px, 2vw, 22px);
    font-weight: 500;
    color: rgba(255,255,255,0.80);
    line-height: 1.6;
    margin: 0 0 28px;
    font-style: italic;
    padding: 0;
    border: none;
}

.cs-about-team-quote cite {
    font-size: 13px;
    font-weight: 700;
    color: #fff;
    font-style: normal;
    letter-spacing: 0.04em;
}

.cs-about-team-roles {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 40px;
}

.cs-about-team-role {
    border-top: 1px solid rgba(255,255,255,0.08);
    padding-top: 18px;
}

.cs-about-team-role h4 {
    font-size: 14px;
    font-weight: 700;
    color: #fff;
    margin: 0 0 4px;
}

.cs-about-team-role p {
    font-size: 12px;
    color: rgba(255,255,255,0.40);
    margin: 0;
}

/* ═══════════════════════════════════════════════════════════════
   5. NHỮNG CON SỐ
   ═══════════════════════════════════════════════════════════════ */
.cs-about-numbers {
    padding: 50px 0;
    position: relative;
}

.cs-about-num-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 40px;
}

.cs-about-num-stat {
    text-align: center;
    padding: 32px 20px;
    background: #fff;
    border: 1px solid #e5e5e5;
    border-radius: 16px;
}

.cs-about-num-stat-value {
    font-size: clamp(36px, 5vw, 56px);
    font-weight: 800;
    color: #E20612;
    letter-spacing: -0.03em;
    line-height: 1;
    margin-bottom: 6px;
}

.cs-about-num-stat-label {
    font-size: 13px;
    font-weight: 600;
    color: #888;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.cs-about-num-banner {
    border-radius: 16px;
    overflow: hidden;
    position: relative;
    aspect-ratio: 3/1;
    background: #e8e8e8;
}
.cs-about-num-banner img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.cs-about-num-banner-cap {
    position: absolute;
    bottom: 20px;
    left: 24px;
    font-size: 13px;
    font-weight: 600;
    color: #fff;
    background: rgba(0,0,0,0.55);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 10px 18px;
    border-radius: 6px;
    border: 1px solid rgba(255,255,255,0.10);
}

/* ═══════════════════════════════════════════════════════════════
   6. CTA — reuse .home-v1-cta từ trang chủ
   ═══════════════════════════════════════════════════════════════ */
.cs-about-cta {
    padding: 50px 0 0;
}

/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE — 768px
   ═══════════════════════════════════════════════════════════════ */
@media (max-width: 768px) {
    /* Hero */
    .cs-about-hero { height: clamp(380px, 50vh, 500px); margin-bottom: 16px; }
    .cs-about-hero-body { bottom: 24px; }
    .cs-about-hero-body h1 { font-size: clamp(2.2rem, 8vw, 3.2rem); }
    .cs-about-hero-sub { font-size: 13px; margin-bottom: 20px; }

    /* Journey */
    .cs-about-journey { padding: 32px 0; }
    .cs-about-journey-wrap { flex-direction: column; gap: 24px; }
    .cs-about-journey-timeline { flex: auto; }
    .cs-about-journey-visual { position: static; aspect-ratio: 4/3; min-height: 200px; }
    .cs-about-journey-step { padding-left: 28px; padding-bottom: 36px; }
    .cs-about-journey-step::before { left: 6px; }
    .cs-about-journey-marker { width: 14px; height: 14px; }

    /* Philosophy */
    .cs-about-philosophy { padding: 32px 0; }
    .cs-about-philo-grid { grid-template-columns: 1fr; gap: 16px; }

    /* Team */
    .cs-about-team { padding: 48px 0; border-radius: 14px; margin: 16px 0; }
    .cs-about-team-heading { margin-bottom: 24px; }
    .cs-about-team-layout { flex-direction: column; gap: 24px; }
    .cs-about-team-img { flex: auto; width: 100%; aspect-ratio: 4/3; }
    .cs-about-team-quote blockquote { font-size: 16px; }
    .cs-about-team-roles { grid-template-columns: 1fr; gap: 16px; }

    /* Numbers */
    .cs-about-numbers { padding: 32px 0; }
    .cs-about-num-grid { grid-template-columns: 1fr; gap: 12px; margin-bottom: 24px; }
    .cs-about-num-banner { aspect-ratio: 4/3; }
    .cs-about-num-banner-cap { bottom: 12px; left: 14px; font-size: 11px; padding: 8px 14px; }

    /* CTA */
    .cs-about-cta { padding: 32px 0 0; }
}