/*
 * CHAMSPACE ABOUT V3 — Hi-End Graphic Design
 * Namespace: .cs-v3-*
 * Design language: Bold overlaps, editorial spreads, large typography,
 *   custom number treatments, parallax-like layering, graphic accents
 */

/* ═══════════════════════════════════════════════════════════════
   1. HERO — Graphic Overlap with Oversized ID
   ═══════════════════════════════════════════════════════════════ */
.cs-v3-hero {
    position: relative;
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto;
    gap: 24px;
    align-items: end;
    min-height: clamp(460px, 70vh, 760px);
    margin-bottom: 30px;
}

/* Oversized graphic ID — sits behind everything */
.cs-v3-hero-id {
    grid-column: 1 / -1;
    grid-row: 1;
    font-size: clamp(120px, 18vw, 280px);
    font-weight: 900;
    line-height: 0.72;
    letter-spacing: -0.05em;
    color: rgba(0,0,0,0.025);
    pointer-events: none;
    user-select: none;
    z-index: 0;
    margin-bottom: -60px;
    margin-left: -8px;
}

/* Left block — text */
.cs-v3-hero-text {
    grid-row: 1;
    z-index: 1;
    padding: clamp(20px, 4vw, 40px) 0 0 0;
}

.cs-v3-hero-kicker {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: #E20612;
    margin-bottom: 16px;
}
.cs-v3-hero-kicker::after {
    content: '';
    width: 40px;
    height: 1px;
    background: #E20612;
}

.cs-v3-hero-text h1 {
    font-size: clamp(3.6rem, 8vw, 7.5rem);
    font-weight: 900;
    line-height: 0.88;
    letter-spacing: -0.04em;
    color: #1a1a1a;
    margin: 0 0 20px;
}
.cs-v3-hero-text h1 i {
    font-style: normal;
    color: #E20612;
}

.cs-v3-hero-sub {
    font-size: clamp(13px, 1.3vw, 16px);
    color: #888;
    line-height: 1.7;
    max-width: 380px;
    margin: 0 0 30px;
}

.cs-v3-hero-link {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #1a1a1a;
    text-decoration: none;
    padding-bottom: 4px;
    border-bottom: 2px solid #E20612;
    transition: gap 0.3s;
}
.cs-v3-hero-link:hover { gap: 18px; }
.cs-v3-hero-link svg { width: 16px; height: 16px; }

/* Right block — image */
.cs-v3-hero-img {
    grid-row: 1;
    z-index: 1;
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    aspect-ratio: 4/5;
    align-self: center;
    box-shadow: 0 30px 80px rgba(0,0,0,0.12);
}
.cs-v3-hero-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* Floating accent tag on image */
.cs-v3-hero-tag {
    position: absolute;
    bottom: 20px;
    right: -12px;
    background: #E20612;
    color: #fff;
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    padding: 10px 20px;
    border-radius: 4px;
    box-shadow: 0 10px 30px rgba(226,6,18,0.30);
}

/* ═══════════════════════════════════════════════════════════════
   2. HÀNH TRÌNH — Overlapping Number Timeline
   ═══════════════════════════════════════════════════════════════ */
.cs-v3-journey {
    padding: 60px 0;
    position: relative;
}

/* Section number watermark */
.cs-v3-journey::before {
    content: '02';
    position: absolute;
    right: 0;
    top: -40px;
    font-size: 200px;
    font-weight: 900;
    line-height: 1;
    color: rgba(0,0,0,0.018);
    letter-spacing: -0.06em;
    pointer-events: none;
}

.cs-v3-journey-steps {
    display: flex;
    gap: 0;
    position: relative;
}

.cs-v3-step {
    flex: 1;
    padding: 0 16px;
    position: relative;
}

/* Connecting line through all steps */
.cs-v3-step::after {
    content: '';
    position: absolute;
    top: 20px;
    left: 0;
    right: 0;
    height: 1px;
    background: rgba(0,0,0,0.06);
    z-index: 0;
}
.cs-v3-step:first-child::after { left: calc(50% - 10px); }
.cs-v3-step:last-child::after { right: calc(50% + 10px); }

/* Step dot */
.cs-v3-step-dot {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 3px solid #1a1a1a;
    background: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 1;
    margin: 0 auto 24px;
    transition: background 0.3s, border-color 0.3s;
}
.cs-v3-step:hover .cs-v3-step-dot {
    background: #E20612;
    border-color: #E20612;
}
.cs-v3-step-dot span {
    font-size: 10px;
    font-weight: 800;
    color: #1a1a1a;
    transition: color 0.3s;
}
.cs-v3-step:hover .cs-v3-step-dot span { color: #fff; }

/* Step image */
.cs-v3-step-img {
    width: 100%;
    aspect-ratio: 3/4;
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 20px;
    background: #eee;
}
.cs-v3-step-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.7s cubic-bezier(0.2,0.36,0.12,1);
}
.cs-v3-step:hover .cs-v3-step-img img { transform: scale(1.06); }

.cs-v3-step-year {
    font-size: 18px;
    font-weight: 900;
    color: #E20612;
    letter-spacing: -0.02em;
    margin-bottom: 4px;
}
.cs-v3-step h3 {
    font-size: 17px;
    font-weight: 800;
    color: #1a1a1a;
    margin: 0 0 8px;
    line-height: 1.2;
}
.cs-v3-step p {
    font-size: 12px;
    color: #888;
    line-height: 1.7;
    margin: 0;
}

/* ═══════════════════════════════════════════════════════════════
   3. TRIẾT LÝ — Spread Layout, Big Image + Text Block
   ═══════════════════════════════════════════════════════════════ */
.cs-v3-philosophy {
    padding: 80px 0;
    position: relative;
}

/* Split spread */
.cs-v3-philo-spread {
    display: flex;
    gap: 60px;
    align-items: stretch;
}
.cs-v3-philo-image {
    flex: 0 0 48%;
    position: relative;
}
.cs-v3-philo-image::before {
    content: '';
    position: absolute;
    inset: -12px 12px 12px -12px;
    border: 2px solid #E20612;
    border-radius: 16px;
    opacity: 0.25;
    pointer-events: none;
}
.cs-v3-philo-image-inner {
    width: 100%;
    height: 100%;
    border-radius: 16px;
    overflow: hidden;
    aspect-ratio: 3/4;
    background: #ddd;
}
.cs-v3-philo-image-inner img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.cs-v3-philo-text {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 24px 0;
}

.cs-v3-philo-heading {
    font-size: clamp(36px, 6vw, 72px);
    font-weight: 900;
    color: #1a1a1a;
    line-height: 0.92;
    letter-spacing: -0.04em;
    margin: 0 0 40px;
}

/* 3 principles stacked */
.cs-v3-principle {
    border-top: 1px solid rgba(0,0,0,0.06);
    padding: 22px 0;
    display: flex;
    gap: 20px;
    align-items: baseline;
}
.cs-v3-principle:last-child { border-bottom: 1px solid rgba(0,0,0,0.06); }

.cs-v3-principle-num {
    flex: 0 0 40px;
    font-size: 13px;
    font-weight: 800;
    color: #E20612;
    letter-spacing: 0.04em;
}

.cs-v3-principle-text h4 {
    font-size: 17px;
    font-weight: 800;
    color: #1a1a1a;
    margin: 0 0 4px;
}
.cs-v3-principle-text p {
    font-size: 12px;
    color: #888;
    line-height: 1.7;
    margin: 0;
}

/* ═══════════════════════════════════════════════════════════════
   4. ĐỘI NGŨ — Editorial Overlap
   ═══════════════════════════════════════════════════════════════ */
.cs-v3-team {
    padding: 80px 0;
    position: relative;
}

.cs-v3-team-spread {
    display: flex;
    gap: 0;
    min-height: clamp(320px, 50vh, 500px);
    align-items: center;
}

/* Big image left */
.cs-v3-team-img-wrap {
    flex: 0 0 55%;
    position: relative;
    z-index: 2;
    border-radius: 16px;
    overflow: hidden;
    aspect-ratio: 4/3;
    background: #1a1a1a;
    box-shadow: 0 30px 80px rgba(0,0,0,0.15);
}
.cs-v3-team-img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Text card overlapping right */
.cs-v3-team-card {
    flex: 1;
    background: #1a1a1a;
    color: #fff;
    padding: clamp(32px, 5vw, 48px);
    margin-left: -40px;
    z-index: 3;
    border-radius: 16px;
    box-shadow: 0 30px 80px rgba(0,0,0,0.25);
}

.cs-v3-team-card-kicker {
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: #E20612;
    margin-bottom: 12px;
    display: block;
}

.cs-v3-team-card h2 {
    font-size: clamp(28px, 4vw, 48px);
    font-weight: 900;
    letter-spacing: -0.03em;
    line-height: 1.05;
    margin: 0 0 20px;
}

.cs-v3-team-card blockquote {
    font-size: 15px;
    color: rgba(255,255,255,0.65);
    line-height: 1.7;
    font-style: italic;
    margin: 0 0 12px;
    padding: 0;
    border: none;
}
.cs-v3-team-card cite {
    font-size: 11px;
    font-weight: 700;
    color: rgba(255,255,255,0.35);
    font-style: normal;
    letter-spacing: 0.06em;
}

/* Bottom roles strip */
.cs-v3-team-roles {
    display: flex;
    gap: 24px;
    margin-top: 36px;
    padding-top: 24px;
    border-top: 1px solid rgba(255,255,255,0.08);
}
.cs-v3-team-role {
    flex: 1;
}
.cs-v3-team-role h5 {
    font-size: 12px;
    font-weight: 700;
    color: rgba(255,255,255,0.50);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin: 0 0 4px;
}
.cs-v3-team-role p {
    font-size: 11px;
    color: rgba(255,255,255,0.25);
    margin: 0;
}

/* ═══════════════════════════════════════════════════════════════
   5. NHỮNG CON SỐ — Graphic Bar + Full Image
   ═══════════════════════════════════════════════════════════════ */
.cs-v3-numbers {
    padding: 60px 0;
    position: relative;
}

.cs-v3-num-spread {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 40px;
    align-items: start;
}

.cs-v3-num-stats {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.cs-v3-num-item {
    padding-bottom: 24px;
    border-bottom: 1px solid rgba(0,0,0,0.06);
}
.cs-v3-num-item:last-child { border: none; }

.cs-v3-num-value {
    font-size: clamp(42px, 5vw, 56px);
    font-weight: 900;
    color: #1a1a1a;
    letter-spacing: -0.04em;
    line-height: 1;
    margin-bottom: 4px;
}
.cs-v3-num-suffix {
    color: #E20612;
}

.cs-v3-num-label {
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: #aaa;
}

.cs-v3-num-banner {
    border-radius: 16px;
    overflow: hidden;
    position: relative;
    aspect-ratio: 16/7;
    background: #ddd;
}
.cs-v3-num-banner img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.cs-v3-num-banner-cap {
    position: absolute;
    bottom: 20px;
    left: 24px;
    font-size: 11px;
    font-weight: 700;
    color: #fff;
    background: rgba(0,0,0,0.60);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    padding: 12px 22px;
    border-radius: 4px;
    letter-spacing: 0.06em;
}

/* ═══════════════════════════════════════════════════════════════
   6. CTA
   ═══════════════════════════════════════════════════════════════ */
.cs-v3-cta { padding: 50px 0 0; }

/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE — 768px
   ═══════════════════════════════════════════════════════════════ */
@media (max-width: 768px) {
    /* Hero: stack */
    .cs-v3-hero { grid-template-columns: 1fr; gap: 16px; min-height: auto; margin-bottom: 16px; }
    .cs-v3-hero-id { font-size: 20vw; margin-bottom: -20px; grid-row: 1; }
    .cs-v3-hero-text { grid-row: 2; padding: 0; }
    .cs-v3-hero-text h1 { font-size: 2.8rem; }
    .cs-v3-hero-img { grid-row: 3; aspect-ratio: 4/3; }
    .cs-v3-hero-tag { right: 8px; bottom: 12px; }

    /* Journey: 1 column */
    .cs-v3-journey { padding: 32px 0; }
    .cs-v3-journey::before { display: none; }
    .cs-v3-journey-steps { flex-direction: column; gap: 32px; }
    .cs-v3-step::after { display: none; }
    .cs-v3-step-dot { margin: 0 0 16px 0; }

    /* Philosophy: stack */
    .cs-v3-philosophy { padding: 40px 0; }
    .cs-v3-philo-spread { flex-direction: column; gap: 32px; }
    .cs-v3-philo-image { flex: auto; }
    .cs-v3-philo-image-inner { aspect-ratio: 4/3; }
    .cs-v3-philo-heading { font-size: 2.4rem; margin-bottom: 24px; }

    /* Team: no overlap */
    .cs-v3-team { padding: 40px 0; }
    .cs-v3-team-spread { flex-direction: column; gap: 24px; min-height: auto; }
    .cs-v3-team-img-wrap { flex: auto; width: 100%; }
    .cs-v3-team-card { margin-left: 0; padding: 32px 24px; }

    /* Numbers: stack */
    .cs-v3-numbers { padding: 32px 0; }
    .cs-v3-num-spread { grid-template-columns: 1fr; gap: 24px; }
    .cs-v3-num-stats { flex-direction: row; gap: 16px; flex-wrap: wrap; }
    .cs-v3-num-item { padding-bottom: 16px; flex: 1; min-width: 80px; }
    .cs-v3-num-banner { aspect-ratio: 4/3; }

    /* CTA */
    .cs-v3-cta { padding: 32px 0 0; }
}

@media (max-width: 480px) {
    .cs-v3-num-stats { flex-direction: column; }
    .cs-v3-team-roles { flex-direction: column; gap: 14px; }
}