/**
 * Nam Việt — About page (Giới thiệu) — v2 industrial direction.
 *
 * Source: design/v2/about.html (inline <style> = spec). The shell (utility bar,
 * header, footer), base primitives (.container, .btn*, .kicker, .notch,
 * .grid-bg, section, .sec-head, .breadcrumb) and the shared inner-page hero band
 * (.page-hero, .crumb) come from base.css/header.css/footer.css — this sheet
 * only adds the About-specific sections.
 *
 * Enqueued conditionally (handle `nv-about`) for template-about.php.
 */

/* ============ ABOUT INTRO (broken 2-col) ============ */
.about { background: var(--paper); }
.about .container { display: grid; grid-template-columns: 0.95fr 1.05fr; gap: 64px; align-items: center; }
.about-media { position: relative; }
.about-media .am-main { position: relative; aspect-ratio: 4 / 4.4; background-size: cover; background-position: center; box-shadow: var(--sh-md); }
.about-media .am-tag { position: absolute; right: -22px; top: 40px; background: var(--ink); color: #fff; padding: 16px 20px; box-shadow: var(--sh-lg); }
.about-media .am-tag .t-k { font-family: var(--mono); font-size: 0.64rem; letter-spacing: 0.16em; color: var(--orange); text-transform: uppercase; }
.about-media .am-tag .t-v { font-family: var(--display); font-weight: 700; font-size: 1.1rem; margin-top: 3px; }
.about-media .am-badge { position: absolute; left: -24px; bottom: -24px; width: 120px; height: 120px; background: var(--orange); display: flex; flex-direction: column; justify-content: center; align-items: center; color: #fff; box-shadow: var(--sh-orange); }
.about-media .am-badge .b-n { font-family: var(--mono); font-weight: 700; font-size: 2.4rem; line-height: 1; }
.about-media .am-badge .b-l { font-size: 0.66rem; letter-spacing: 0.08em; text-transform: uppercase; margin-top: 4px; text-align: center; padding: 0 8px; }
.about-body h2 { font-size: clamp(1.9rem, 3.2vw, 2.7rem); margin: 16px 0 20px; }
.about-body p { color: var(--s-700); margin-bottom: 16px; max-width: 42em; font-size: 0.98rem; }
.checklist { list-style: none; display: grid; grid-template-columns: 1fr 1fr; gap: 14px 26px; margin: 26px 0 0; }
.checklist li { display: flex; gap: 12px; align-items: flex-start; font-size: 0.95rem; font-weight: 500; }
.checklist li .ck { flex: none; width: 22px; height: 22px; background: var(--orange-050); color: var(--orange-700); display: grid; place-items: center; margin-top: 1px; font-size: 0.7rem; font-weight: 700; border: 1px solid var(--orange-100); }

/* ============ HISTORY TIMELINE ============ */
.history { background: #fff; }
.timeline { position: relative; max-width: 860px; border-left: 2px solid var(--s-200); margin-left: 8px; padding-left: 42px; display: flex; flex-direction: column; gap: 46px; }
.tl-item { position: relative; }
.tl-item::before { content: ""; position: absolute; left: -51px; top: 3px; width: 16px; height: 16px; border-radius: 50%; background: var(--orange); border: 3px solid #fff; box-shadow: 0 0 0 2px var(--s-200); }
.tl-year { font-family: var(--mono); font-weight: 700; font-size: 1.05rem; color: var(--orange-700); letter-spacing: 0.02em; }
.tl-item h3 { font-size: 1.25rem; margin: 5px 0 8px; color: var(--ink); }
.tl-item p { color: var(--s-500); font-size: 0.96rem; max-width: 48em; }

/* ============ VISION / MISSION (dark, 2 panels) ============ */
.vm { background: var(--ink); color: #fff; position: relative; overflow: hidden; }
.vm .grid-bg { opacity: 0.5; }
.vm .container { position: relative; z-index: 2; }
.vm .sec-head h2 { color: #fff; }
.vm .sec-head p { color: var(--s-400); }
.commit { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.commit-item { position: relative; overflow: hidden; background: rgba(255,255,255,0.035); border: 1px solid rgba(255,255,255,0.08); padding: 40px 36px 38px; transition: transform 0.3s, border-color 0.3s, background 0.3s, box-shadow 0.3s; }
.commit-item::after { content: ""; position: absolute; right: -46px; top: -46px; width: 140px; height: 140px; border-radius: 50%; background: radial-gradient(circle, rgba(217,131,42,0.16), transparent 68%); opacity: 0; transition: opacity 0.35s; pointer-events: none; z-index: 0; }
.commit-item:hover { transform: translateY(-6px); border-color: rgba(217,131,42,0.55); background: rgba(255,255,255,0.052); box-shadow: 0 22px 46px rgba(0,0,0,0.34); }
.commit-item:hover::after { opacity: 1; }
.commit-item .ci-ico { position: relative; z-index: 1; width: 60px; height: 60px; display: grid; place-items: center; background: rgba(217,131,42,0.12); border: 1px solid rgba(217,131,42,0.34); color: var(--orange); margin-bottom: 26px; transition: background 0.3s, color 0.3s, border-color 0.3s, box-shadow 0.3s; }
.commit-item:hover .ci-ico { background: var(--orange); border-color: var(--orange); color: #fff; box-shadow: 0 10px 22px rgba(217,131,42,0.4); }
.commit-item .ci-ico svg { width: 28px; height: 28px; stroke: currentColor; stroke-width: 1.7; fill: none; stroke-linecap: round; stroke-linejoin: round; }
.commit-item h3 { position: relative; z-index: 1; font-size: 1.4rem; color: #fff; margin-bottom: 12px; }
.commit-item p { position: relative; z-index: 1; font-size: 1rem; color: var(--s-300); max-width: 34em; }

/* ============ STATS BAND ============ */
.statband { background: var(--paper); }
.statband .stats { position: relative; background: var(--white); box-shadow: var(--sh-md); }
.statband .stats .container { display: grid; grid-template-columns: repeat(4, 1fr); }
.statband .stat { padding: 36px 28px; border-left: 1px solid var(--s-100); position: relative; }
.statband .stat:first-child { border-left: none; }
.statband .stat .sv { font-family: var(--mono); font-weight: 700; font-size: 2.5rem; color: var(--ink); letter-spacing: -0.02em; line-height: 1; font-variant-numeric: tabular-nums; }
.statband .stat .sv .u { color: var(--orange); }
.statband .stat .sl { font-size: 0.86rem; color: var(--s-500); margin-top: 10px; font-weight: 500; }
.statband .stat::after { content: ""; position: absolute; left: 28px; bottom: 24px; width: 0; height: 2px; background: var(--orange); transition: width 0.4s ease; }
.statband .stat:hover::after { width: 36px; }

/* ============ EQUIPMENT ============ */
.equip { background: var(--paper); }
.equip-top { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; margin-bottom: 58px; }
.equip-top .et-text h2 { font-size: clamp(1.8rem, 3vw, 2.6rem); margin: 16px 0 16px; }
.equip-top .et-text p { color: var(--s-700); max-width: 40em; }
.equip-photos { display: flex; justify-content: flex-end; }
.equip-photos .ep { background-size: cover; background-position: center; box-shadow: var(--sh-sm); }
.equip-photos .ep.tall { width: 100%; max-width: 440px; aspect-ratio: 4 / 3; }
/* Editable media slot (image OR video) — fills its parent. */
.nv-video { position: relative; overflow: hidden; background: var(--ink, #1a1c1f); }
.nv-video > .nv-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: block; }
.feat3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.feat3 .fi .f-ico { width: 54px; height: 54px; display: grid; place-items: center; background: var(--orange-050); border: 1px solid var(--orange-100); color: var(--orange-700); margin-bottom: 18px; }
.feat3 .fi .f-ico svg { width: 26px; height: 26px; stroke: currentColor; stroke-width: 1.7; fill: none; stroke-linecap: round; stroke-linejoin: round; }
.feat3 .fi h3 { font-size: 1.2rem; margin-bottom: 8px; color: var(--ink); }
.feat3 .fi p { color: var(--s-500); font-size: 0.94rem; max-width: 30em; }

/* ============ CTA BAND ============ */
.cta-band { position: relative; background: var(--orange); color: #fff; overflow: hidden; padding: 72px 0; }
.cta-band::before { content: ""; position: absolute; inset: 0; opacity: 0.5; mix-blend-mode: overlay; background-image: linear-gradient(rgba(255,255,255,0.12) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.12) 1px, transparent 1px); background-size: 40px 40px; }
.cta-band::after { content: ""; position: absolute; top: 0; right: 0; width: 46%; height: 100%; background: linear-gradient(120deg, transparent, rgba(26,28,31,0.18)); pointer-events: none; }
.cta-band .container { position: relative; z-index: 2; display: flex; align-items: center; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.cta-band .ctk { font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.16em; text-transform: uppercase; color: rgba(255,255,255,0.85); }
.cta-band h2 { font-size: clamp(1.8rem, 3vw, 2.6rem); color: #fff; margin: 12px 0 6px; max-width: 18em; }
.cta-band .c-phone { font-family: var(--mono); font-weight: 700; font-size: 1.2rem; margin-top: 6px; display: flex; align-items: center; gap: 10px; }
.cta-band .c-phone .cp-ico { display: flex; align-items: center; }
.cta-band .c-phone .cp-ico svg { width: 20px; height: 20px; }
.cta-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.cta-band .btn-primary { background: #fff; color: var(--orange-700); box-shadow: 0 16px 30px rgba(26,28,31,0.22); }
.cta-band .btn-primary:hover { background: var(--ink); color: #fff; }

/* ============ RESPONSIVE ============ */
@media (max-width: 1080px) {
  .about .container { grid-template-columns: 1fr; gap: 40px; }
  .about-media .am-badge { left: auto; right: 24px; }
  .about-media .am-tag { right: 0; }
  .equip-top { grid-template-columns: 1fr; gap: 34px; }
  .vm .commit { grid-template-columns: 1fr; }
}
@media (max-width: 680px) {
  .statband .stats .container { grid-template-columns: 1fr 1fr; }
  .statband .stat:nth-child(odd) { border-left: none; }
  .statband .stat:nth-child(n+3) { border-top: 1px solid var(--s-100); }
  .checklist, .feat3, .equip-photos { grid-template-columns: 1fr; }
  .equip-photos .ep.tall { grid-row: auto; }
  .timeline { margin-left: 4px; padding-left: 30px; }
  .tl-item::before { left: -39px; }
}