/* Sinh Vũ marketing site — page layout (consumes design-system tokens) */

.site-scroll { height: 100vh; overflow-y: auto; scroll-behavior: smooth; background: var(--surface-page); }
.container { max-width: var(--container-max); margin: 0 auto; padding: 0 32px; }
.section { padding: var(--space-24) 0; }
.section--paper { background: var(--surface-paper); }
.section--navy { background: var(--color-deep-navy); }

/* ---- Nav ---- */
.nav { position: sticky; top: 0; z-index: var(--z-sticky); background: var(--color-deep-navy); transition: background var(--dur-base) var(--ease-out), border-color var(--dur-base) var(--ease-out); border-bottom: 1px solid transparent; }
.nav--scrolled { background: color-mix(in srgb, var(--color-deep-navy) 92%, transparent); backdrop-filter: blur(10px); border-bottom-color: color-mix(in srgb, #fff 10%, transparent); }
.nav__inner { max-width: var(--container-max); margin: 0 auto; padding: 8px 32px; display: flex; align-items: center; gap: 32px; }
.nav__brand img { height: var(--logo-h-md); width: auto; display: block; }
.nav__links { display: flex; gap: 28px; margin-left: 8px; }
.nav__links a { font-family: var(--font-sans); font-size: 14px; font-weight: 500; color: color-mix(in srgb, var(--color-off-white) 78%, transparent); text-decoration: none; transition: color var(--dur-base) var(--ease-out); }
.nav__links a:hover { color: var(--color-warm-cream); }
.nav__actions { margin-left: auto; }

/* ---- Hero ---- */
.hero { position: relative; background: var(--color-deep-navy); overflow: hidden; isolation: isolate; }
.hero__glow { position: absolute; inset: 0; z-index: -1; opacity: 0.6;
  background: radial-gradient(50% 60% at 75% 10%, color-mix(in srgb, var(--color-studio-blue) 90%, transparent), transparent 60%),
              radial-gradient(40% 50% at 10% 90%, color-mix(in srgb, var(--color-bordeaux) 50%, transparent), transparent 60%); }
.hero__inner { max-width: var(--container-max); margin: 0 auto; padding: 120px 32px 110px; }
.hero__eyebrow { font-family: var(--font-sans); font-size: 13px; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--color-warm-cream); }
.hero__display { font-family: var(--font-display); font-weight: 700; text-transform: uppercase; font-size: clamp(3rem, 1.8rem + 6vw, 5.5rem); line-height: 1.0; letter-spacing: 0.01em; color: var(--color-off-white); margin: 22px 0 0; }
.hero__title { font-family: var(--font-heading); font-weight: 700; font-size: clamp(1.75rem, 1.2rem + 2.4vw, 2.75rem); line-height: 1.06; letter-spacing: -0.01em; color: var(--color-off-white); margin: 18px 0 0; }
.hero__title em { font-family: var(--font-heading); font-style: normal; color: var(--color-warm-cream); }
.hero__title em { color: var(--color-warm-cream); }
.hero__sub { font-family: var(--font-signature); font-size: clamp(1.3rem, 1rem + 1.2vw, 1.9rem); line-height: 1.6; color: var(--color-warm-cream); margin: 18px 0 0; }
.hero__lead { font-family: var(--font-sans); font-size: 19px; line-height: 1.65; color: color-mix(in srgb, var(--color-off-white) 78%, transparent); max-width: 56ch; margin: 28px 0 0; }
.hero__actions { display: flex; gap: 14px; flex-wrap: wrap; margin: 36px 0 0; }
.hero__meta { display: flex; gap: 56px; margin-top: 64px; flex-wrap: wrap; }
.hero__meta div { display: flex; flex-direction: column; gap: 4px; }
.hero__meta strong { font-family: var(--font-heading); font-size: 40px; font-weight: 700; color: var(--color-warm-cream); line-height: 1; font-feature-settings: 'tnum' 1, 'lnum' 1; }
.hero__meta span { font-family: var(--font-sans); font-size: 13px; color: color-mix(in srgb, var(--color-off-white) 64%, transparent); }

/* ---- Positioning ---- */
.positioning__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; margin-top: var(--space-12); }
.positioning__item { display: flex; flex-direction: column; gap: 10px; }
.positioning__bar { width: 36px; height: 3px; background: var(--accent); border-radius: 2px; }
.positioning__item h3 { font-family: var(--font-heading); font-size: 22px; font-weight: 600; letter-spacing: -0.01em; color: var(--text-primary); margin: 6px 0 0; }
.positioning__item p { font-size: 15px; line-height: 1.65; color: var(--text-secondary); margin: 0; }

/* ---- Services ---- */
.services__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: var(--space-12); }

/* ---- Diagnosis ---- */
.diagnosis__head { display: grid; grid-template-columns: 1.3fr 1fr; gap: 40px; align-items: end; }
.diagnosis__cta h3 { font-family: var(--font-heading); font-size: 21px; font-weight: 600; color: var(--color-warm-cream); margin: 0 0 8px; }
.diagnosis__cta p { font-size: 14px; line-height: 1.6; color: color-mix(in srgb, var(--color-warm-cream) 82%, transparent); margin: 0 0 18px; }
.diagnosis__list { margin-top: var(--space-12); border-top: 1px solid var(--border-subtle); }

/* ---- Process ---- */
.process__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: var(--space-12); }
.process__grid > *:nth-child(5), .process__grid > *:nth-child(6), .process__grid > *:nth-child(7) { grid-row: 2; }

/* ---- Cases ---- */
.cases__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: var(--space-12); }

/* ---- Footer ---- */
.footer { background: var(--color-navy-900, #021530); padding: var(--space-16) 0 var(--space-8); }
.footer__top { max-width: var(--container-max); margin: 0 auto; padding: 0 32px; display: grid; grid-template-columns: 1fr 2.6fr; gap: 56px; }
.footer__logo { height: var(--logo-h-lg); width: auto; justify-self: start; align-self: start; margin-bottom: 18px; }
.footer__tag { font-size: 15px; line-height: 1.65; color: color-mix(in srgb, var(--color-off-white) 70%, transparent); max-width: 40ch; margin: 0 0 24px; }
.footer__cols { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.footer__col h4 { font-family: var(--font-sans); font-size: 12px; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--color-warm-cream); margin: 0 0 16px; }
.footer__col ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 11px; }
.footer__col li { font-size: 14px; color: color-mix(in srgb, var(--color-off-white) 72%, transparent); }
.footer__col a { color: inherit; text-decoration: none; transition: color var(--dur-fast, 140ms) var(--ease-out, ease); }
.footer__col a:hover { color: var(--color-warm-cream); }
.footer__base { max-width: var(--container-max); margin: var(--space-12) auto 0; padding: 24px 32px 0; border-top: 1px solid color-mix(in srgb, #fff 10%, transparent); display: flex; justify-content: space-between; font-size: 13px; color: color-mix(in srgb, var(--color-off-white) 55%, transparent); }
.footer__base-links { display: flex; gap: 20px; }
.footer__base-links a { color: inherit; text-decoration: none; }
.footer__base-links a:hover { color: var(--color-warm-cream); }

/* ---- Hero chat box (Cửa 02 inline) ---- */
.hero__chat { margin: 36px 0 0; max-width: 620px; background: color-mix(in srgb, #fff 7%, transparent); border: 1px solid color-mix(in srgb, #fff 16%, transparent); border-radius: var(--radius-lg); padding: 18px 20px; backdrop-filter: blur(8px); }
.hero__chat-label { display: flex; align-items: center; gap: 9px; font-size: 13px; color: var(--color-warm-cream); font-weight: 600; }
.hero__chat-label i { width: 8px; height: 8px; border-radius: 50%; background: var(--color-signal-red); display: inline-block; }
.hero__chat-input { display: flex; align-items: center; gap: 12px; margin-top: 12px; background: color-mix(in srgb, var(--color-deep-navy) 60%, #000); border: 1px solid color-mix(in srgb, #fff 14%, transparent); border-radius: var(--radius-md); padding: 12px 14px; }
.hero__chat-input input { flex: 1; background: none; border: none; outline: none; color: var(--color-off-white); font-family: var(--font-sans); font-size: 15px; }
.hero__chat-input input::placeholder { color: color-mix(in srgb, var(--color-off-white) 50%, transparent); }
.hero__chat-hint { font-size: 11.5px; color: color-mix(in srgb, var(--color-off-white) 52%, transparent); margin-top: 9px; }
.hero__founder-note { margin-top: 28px; font-size: 14px; line-height: 1.6; color: color-mix(in srgb, var(--color-off-white) 70%, transparent); max-width: 52ch; padding-left: 14px; border-left: 2px solid var(--accent); }

/* ---- Doors (3 cửa) ---- */
.doors { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: var(--space-12); }
.door { display: flex; flex-direction: column; gap: 12px; background: var(--surface-card); border: 1px solid var(--border-subtle); border-radius: var(--radius-lg); padding: 28px; text-decoration: none; transition: transform var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out), border-color var(--dur-base) var(--ease-out); }
.door:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: transparent; }
.door__num { font-family: var(--font-display); font-weight: 700; font-size: 30px; color: var(--accent); line-height: 1; }
.door__title { font-family: var(--font-heading); font-size: 22px; font-weight: 600; color: var(--text-primary); margin: 0; }
.door__title em { font-style: normal; color: var(--text-brand); }
.door__desc { font-size: 14px; line-height: 1.6; color: var(--text-secondary); margin: 0; flex: 1; }
.door__foot { display: flex; align-items: center; justify-content: space-between; font-size: 13px; font-weight: 600; color: var(--text-secondary); padding-top: 12px; border-top: 1px solid var(--hairline); }
.door__foot .door__go { color: var(--text-accent); }

/* ---- Client logos ---- */
.clients { padding: var(--space-12) 0; border-top: 1px solid var(--border-subtle); border-bottom: 1px solid var(--border-subtle); }
.clients__label { text-align: center; font-size: 11px; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--text-secondary); margin: 0 0 24px; }
.clients__row { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 28px 56px; }
.clients__logo { width: auto; max-width: 152px; object-fit: contain; filter: grayscale(1); opacity: 0.6; transition: filter var(--dur-base) var(--ease-out), opacity var(--dur-base) var(--ease-out); }
.clients__logo:hover { filter: grayscale(0); opacity: 1; }
@media (prefers-reduced-motion: reduce) { .clients__logo { transition: none; } }

/* ---- Service groups (4 nhóm) ---- */
.groups__grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; margin-top: var(--space-12); }
.group { display: grid; grid-template-columns: auto 1fr; gap: 22px; align-items: start; background: var(--surface-card); border: 1px solid var(--border-subtle); border-radius: var(--radius-lg); padding: 28px; transition: border-color var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out); }
.group:hover { box-shadow: var(--shadow-md); border-color: color-mix(in srgb, var(--color-bordeaux) 24%, var(--border-subtle)); }
.group__stat { font-family: var(--font-display); font-weight: 700; font-size: 38px; line-height: 1; color: var(--color-bordeaux); }
.group__title { font-family: var(--font-heading); font-size: 20px; font-weight: 600; color: var(--text-primary); margin: 0 0 8px; }
.group__desc { font-size: 14px; line-height: 1.6; color: var(--text-secondary); margin: 0 0 10px; }
.group__codes { font-family: var(--font-mono); font-size: 11.5px; letter-spacing: 0.04em; color: var(--text-accent); }

/* ---- Reasons (3 lý do) ---- */
.reasons__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; margin-top: var(--space-12); }
.reason { position: relative; }
.reason__num { font-family: var(--font-display); font-weight: 700; font-size: 52px; line-height: 1; color: color-mix(in srgb, var(--color-bordeaux) 22%, transparent); }
.reason__title { font-family: var(--font-heading); font-size: 22px; font-weight: 600; letter-spacing: -0.01em; color: var(--text-primary); margin: 10px 0 8px; }
.reason__title em { font-style: normal; color: var(--text-brand); }
.reason__desc { font-size: 14.5px; line-height: 1.65; color: var(--text-secondary); margin: 0; }

/* ---- Self case (Brand OS) ---- */
.selfcase { display: grid; grid-template-columns: 1.4fr 1fr; gap: 48px; align-items: center; }
.selfcase__stats { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.selfcase__stat strong { display: block; font-family: var(--font-display); font-weight: 700; font-size: 44px; line-height: 1; color: var(--color-warm-cream); }
.selfcase__stat span { font-size: 13px; color: color-mix(in srgb, var(--color-off-white) 64%, transparent); margin-top: 6px; display: block; }

/* ---- FAQ ---- */
.faq { max-width: 820px; margin-top: var(--space-12); }

/* ---- Shared: skip-link, breadcrumb, content/editorial template ---- */
.sv-skip { position: absolute; left: -9999px; top: 0; z-index: 1000; background: var(--color-bordeaux); color: var(--color-warm-cream); padding: 10px 16px; border-radius: 0 0 var(--radius-sm) 0; font-family: var(--font-sans); font-size: 14px; font-weight: 600; }
.sv-skip:focus { left: 0; }
.sv-crumb { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; font-family: var(--font-sans); font-size: 13px; color: var(--text-secondary); margin-bottom: var(--space-8); }
.sv-crumb a { color: var(--text-secondary); text-decoration: none; }
.sv-crumb a:hover { color: var(--text-brand); }
.sv-crumb [aria-current="page"] { color: var(--text-primary); font-weight: 600; }
.sv-crumb__sep { opacity: 0.5; }

.content { max-width: 760px; margin-inline: auto; }
.content__h2 { margin: var(--space-12) 0 var(--space-4); }
.content__h2:first-child { margin-top: 0; }
.content__p { font-size: 17px; line-height: 1.75; color: var(--text-primary); margin: 0 0 var(--space-4); }
.content__list { font-size: 16px; line-height: 1.7; color: var(--text-primary); margin: 0 0 var(--space-4); padding-left: 22px; display: flex; flex-direction: column; gap: 8px; }
.content__callout { background: var(--surface-paper); border: 1px solid var(--hairline); border-left: 3px solid var(--accent); border-radius: var(--radius-md); padding: 18px 20px; margin: 0 0 var(--space-6); }
.content__callout strong { display: block; font-family: var(--font-heading); font-size: 16px; font-weight: 600; color: var(--text-primary); margin-bottom: 6px; }
.content__callout p { font-size: 14.5px; line-height: 1.6; color: var(--text-secondary); margin: 0; }
.content__callout--good { border-left-color: var(--color-success); }
.sn-services { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 28px 0 0; }
.sn-service { display: flex; gap: 14px; align-items: flex-start; background: var(--surface-card); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); padding: 16px 18px; text-decoration: none; color: inherit; transition: border-color var(--dur-base) var(--ease-out); }
.sn-service:hover { border-color: var(--color-bordeaux); }
.sn-service__code { font-family: var(--font-display); font-weight: 700; font-size: 18px; color: var(--accent); flex: none; line-height: 1.2; }
.sn-service strong { font-family: var(--font-heading); font-size: 15px; font-weight: 600; color: var(--text-primary); }
.sn-service p { font-size: 13px; line-height: 1.5; color: var(--text-secondary); margin: 4px 0 0; }
@media (max-width: 640px) { .sn-services { grid-template-columns: 1fr; } }
.content__quote { margin: var(--space-8) 0; }
.content__cta { margin-top: var(--space-16); padding-top: var(--space-12); border-top: 1px solid var(--border-subtle); text-align: center; }
.content__cta-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-top: var(--space-6); }

/* ---- Case detail (T4) ---- */
.cd-meta { display: flex; flex-wrap: wrap; gap: 40px; margin-top: 40px; }
.cd-meta div { display: flex; flex-direction: column; gap: 4px; }
.cd-meta span { font-size: 12px; color: color-mix(in srgb, var(--color-off-white) 60%, transparent); }
.cd-meta strong { font-family: var(--font-heading); font-size: 18px; font-weight: 600; color: var(--color-warm-cream); }
.cd-grid { display: grid; grid-template-columns: 1fr 320px; gap: 48px; align-items: start; }
.cd-block { margin-bottom: var(--space-12); }
.cd-block:last-child { margin-bottom: 0; }
.cd-block h2 { margin: 0 0 var(--space-4); }
.cd-approach { display: flex; flex-direction: column; gap: 16px; }
.cd-approach__item { display: grid; grid-template-columns: auto 1fr; gap: 24px; align-items: start; }
.cd-approach__n { font-family: var(--font-display); font-weight: 700; font-size: clamp(46px, 5vw, 62px); color: var(--accent); line-height: 0.82; letter-spacing: -0.01em; font-variant-numeric: tabular-nums; min-width: 1.5em; }
.cd-approach__item strong { font-family: var(--font-heading); font-size: 20px; font-weight: 600; color: var(--text-primary); line-height: 1.3; display: block; padding-top: 6px; }
.cd-approach__item p { font-size: 14.5px; line-height: 1.6; color: var(--text-secondary); margin: 4px 0 0; }
.cd-aside { position: sticky; top: 88px; display: flex; flex-direction: column; gap: 20px; background: var(--surface-paper); border: 1px solid var(--hairline); border-radius: var(--radius-lg); padding: 24px; }
.cd-results { display: flex; flex-direction: column; gap: 14px; }
.cd-result { display: flex; flex-direction: column; gap: 2px; padding-bottom: 14px; border-bottom: 1px solid var(--hairline); }
.cd-result:last-child { border-bottom: none; padding-bottom: 0; }
.cd-result strong { font-family: var(--font-display); font-weight: 700; font-size: 28px; color: var(--color-bordeaux); line-height: 1; }
.cd-result span { font-size: 13px; color: var(--text-secondary); }
.cd-deliver ul { list-style: none; margin: 8px 0 0; padding: 0; display: flex; flex-direction: column; gap: 9px; }
.cd-deliver li { font-size: 13.5px; color: var(--text-primary); padding-left: 18px; position: relative; }
.cd-deliver li::before { content: ""; position: absolute; left: 0; top: 8px; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
/* Case aside v2 — hồ sơ dự án chuyên nghiệp (cửa chuyển đổi) */
.cd-aside--pro { gap: 0; background: var(--surface-card); padding: 28px; box-shadow: 0 1px 2px rgba(3, 29, 68, 0.05); }
.cd-aside__grp { padding: 20px 0; }
.cd-aside__grp + .cd-aside__grp { border-top: 1px solid var(--hairline); }
.cd-aside__grp:first-child { padding-top: 4px; }
.cd-aside__lbl { font-family: var(--font-heading); font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.12em; color: var(--text-secondary); margin: 0 0 14px; }
.cd-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.cd-tags a { font-size: 13px; line-height: 1.25; color: var(--text-primary); background: var(--surface-paper); border: 1px solid var(--hairline); border-radius: var(--radius-sm); padding: 7px 12px; text-decoration: none; transition: border-color var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out); }
.cd-tags a:hover { border-color: var(--accent); color: var(--color-bordeaux); }
.cd-deliv { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 12px; }
.cd-deliv li { font-size: 14px; color: var(--text-primary); line-height: 1.45; padding-left: 24px; position: relative; }
.cd-deliv li::before { content: ""; position: absolute; left: 4px; top: 2px; width: 6px; height: 11px; border: solid var(--accent); border-width: 0 1.8px 1.8px 0; transform: rotate(42deg); }
.cd-spec { display: flex; flex-direction: column; gap: 12px; }
.cd-spec__row { display: grid; grid-template-columns: 76px 1fr; gap: 12px; align-items: baseline; }
.cd-spec__k { font-family: var(--font-heading); font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-secondary); }
.cd-spec__v { font-size: 14px; color: var(--text-primary); line-height: 1.45; }
.cd-aside__note { font-size: 14px; line-height: 1.65; color: var(--text-secondary); margin: 0; padding: 20px 0 18px; border-top: 1px solid var(--hairline); }
/* Case liên thông — nút giao dịch vụ / góc nhìn / cẩm nang */
.cd-links { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; margin-top: 32px; }
.cd-links__col h3 { font-family: var(--font-heading); font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.12em; color: var(--text-secondary); margin: 0 0 4px; }
.cd-links__col ul { list-style: none; margin: 0; padding: 0; }
.cd-links__col a { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; padding: 13px 0; border-bottom: 1px solid var(--hairline); font-size: 15px; line-height: 1.4; color: var(--text-primary); text-decoration: none; transition: color var(--dur-fast) var(--ease-out); }
.cd-links__col a:hover { color: var(--color-bordeaux); }
.cd-links__col a::after { content: "→"; color: var(--accent); opacity: 0; transform: translateX(-4px); transition: opacity var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out); }
.cd-links__col a:hover::after { opacity: 1; transform: translateX(0); }
@media (max-width: 720px) { .cd-links { grid-template-columns: 1fr; gap: 8px; } }
/* Case dải tin cậy — neo dự án vào bề dày Sinh Vũ (17 năm / 300+ / 16 ngành) */
.cd-trust { display: flex; flex-direction: column; align-items: center; text-align: center; gap: 20px; border-block: 1px solid var(--hairline); padding-block: 40px; }
.cd-trust__lead { font-family: var(--font-heading); font-size: clamp(20px, 2.4vw, 26px); font-weight: 600; color: var(--text-primary); margin: 0; line-height: 1.3; }
.cd-trust__stats { display: flex; flex-wrap: wrap; justify-content: center; gap: 24px 56px; }
.cd-trust__item { display: flex; flex-direction: column; align-items: center; gap: 6px; }
.cd-trust__val { display: inline-flex; align-items: baseline; }
.cd-trust__num { font-family: var(--font-display); font-weight: 700; font-size: clamp(42px, 5vw, 58px); color: var(--color-bordeaux); line-height: 1; letter-spacing: -0.01em; font-variant-numeric: tabular-nums; }
.cd-trust__plus { font-family: var(--font-display); font-weight: 700; font-size: clamp(24px, 3vw, 32px); color: var(--color-bordeaux); line-height: 1; }
.cd-trust__lbl { font-size: 12.5px; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.1em; }
.cd-trust__note { font-size: 15px; color: var(--text-secondary); max-width: 560px; margin: 0; line-height: 1.6; }
.cd-aside__ladder { display: block; text-align: center; margin-top: 12px; font-size: 14px; color: var(--text-secondary); text-decoration: none; transition: color var(--dur-fast) var(--ease-out); }
.cd-aside__ladder:hover { color: var(--color-bordeaux); }
/* Backlink ngược: dịch vụ/ngành -> dự án thật (chip case) */
.case-back { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.case-back a { display: inline-flex; align-items: center; gap: 10px; padding: 14px 18px; border: 1px solid var(--hairline); border-radius: var(--radius-md); background: var(--surface-card); color: var(--text-primary); text-decoration: none; font-size: 15px; font-weight: 500; line-height: 1.35; transition: border-color var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out); }
.case-back a:hover { border-color: var(--accent); color: var(--color-bordeaux); }
.case-back a::after { content: "→"; color: var(--accent); }
/* Case Tầng 2 — ô lắng nghe (khách tự soi chiếu bài toán, panel navy) */
.cd-listen { background: var(--color-deep-navy); border-radius: var(--radius-xl); padding: clamp(32px, 5vw, 60px); }
.cd-listen__eyebrow { display: inline-block; text-transform: uppercase; letter-spacing: 0.14em; font-size: 12px; font-weight: 600; color: var(--color-warm-cream); }
.cd-listen__title { font-family: var(--font-heading); font-weight: 600; font-size: clamp(26px, 3.4vw, 38px); color: var(--color-off-white); margin: 12px 0 0; line-height: 1.22; }
.cd-listen__title em { color: var(--color-warm-cream); font-style: normal; font-weight: inherit; }
.cd-listen__lead { color: color-mix(in srgb, var(--color-off-white) 76%, transparent); font-size: 16px; line-height: 1.65; margin: 14px 0 0; max-width: 560px; }
/* Desktop: 2 cột (lời mời trái · ô nhập phải) để cân bằng, hết trống nửa phải. Mobile: stack dọc. */
@media (min-width: 721px) { .cd-listen { display: grid; grid-template-columns: minmax(0, 1fr) minmax(340px, 440px); gap: clamp(32px, 4vw, 64px); align-items: center; } .cd-listen .hero__chat { margin-top: 0; } }
.cd-hero-media { aspect-ratio: 16 / 7; border-radius: var(--radius-lg); overflow: hidden; background: linear-gradient(140deg, var(--color-deep-navy), var(--color-studio-blue)); display: grid; place-items: center; border: 1px solid var(--border-subtle); }
.cd-hero-media img { width: 100%; height: 100%; object-fit: cover; display: block; }
.cd-hero-media__ph { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.06em; color: color-mix(in srgb, var(--color-warm-cream) 70%, transparent); }
.cd-approach__body { display: flex; flex-direction: column; gap: 6px; }
.cd-approach__img { aspect-ratio: 16 / 8; border-radius: var(--radius-md); overflow: hidden; background: var(--surface-paper); border: 1px solid var(--hairline); display: grid; place-items: center; margin-top: 6px; }
.cd-approach__img img { width: 100%; height: 100%; object-fit: cover; display: block; }
.cd-approach__img span { font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.06em; color: var(--text-secondary); }
/* Biến thể ảnh LOGO/artwork phẳng: contain (không cắt) + nền trắng + đệm. Ảnh cảnh/mockup giữ cover. */
.cd-approach__img--contain { aspect-ratio: 3 / 2; background: var(--surface-card); padding: clamp(20px, 4vw, 40px); }
.cd-approach__img--contain img { object-fit: contain; }
/* Board nhận diện full 3:2 — KHÔNG crop (rule: giữ ảnh nguồn 1536×1024, board giàu thông tin hiện đủ). */
.cd-hero-media--3x2 { aspect-ratio: 3 / 2; }
.cd-approach__img--full { aspect-ratio: 3 / 2; background: var(--surface-paper); }
.cd-approach__img--full img { object-fit: contain; }
/* Thư viện nhận diện — lưới thumb ảnh full, chạm phóng to (dùng lightbox case). Không cắt board. */
.cd-gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.cd-gallery__item { position: relative; aspect-ratio: 3 / 2; border-radius: var(--radius-md); overflow: hidden; border: 1px solid var(--hairline); background: var(--surface-paper); display: block; }
.cd-gallery__item img { width: 100%; height: 100%; object-fit: contain; display: block; transition: transform var(--dur-base) var(--ease-out); }
.cd-gallery__item:hover img { transform: scale(1.03); }
@media (max-width: 720px) { .cd-gallery { grid-template-columns: repeat(2, 1fr); gap: 12px; } }
/* Mô hình SVIA — kiến trúc trí tuệ 3 lớp (nhạc trưởng · đội ngũ · động cơ trí tuệ) + 4 giá trị khách. */
.cd-model { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 32px; }
.cd-pillar { border: 1px solid var(--border-subtle); border-radius: var(--radius-lg); padding: clamp(20px, 3vw, 28px); background: var(--surface-card); display: flex; flex-direction: column; gap: 10px; }
.cd-pillar__role { font-family: var(--font-sans); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--text-accent); font-weight: 600; }
.cd-pillar__name { font-family: var(--font-heading); font-weight: 600; font-size: 22px; letter-spacing: -0.01em; color: var(--text-primary); margin: 0; }
.cd-pillar p { font-size: 15px; line-height: 1.7; color: var(--text-secondary); margin: 0; }
.cd-model__close { margin-top: 40px; padding-top: 32px; border-top: 1px solid var(--hairline); display: grid; gap: 28px; }
.cd-model__stmt { font-family: var(--font-heading); font-weight: 600; font-size: clamp(19px, 2.3vw, 26px); line-height: 1.42; letter-spacing: -0.01em; color: var(--text-primary); max-width: 46ch; margin: 0; }
.cd-model__stmt em { color: var(--text-brand); font-style: normal; }
.cd-model__values { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.cd-model__val { display: flex; flex-direction: column; gap: 5px; }
.cd-model__val::before { content: ""; display: block; width: 26px; height: 2px; background: var(--accent); margin-bottom: 10px; }
.cd-model__val strong { font-family: var(--font-heading); font-weight: 600; font-size: 15.5px; color: var(--text-primary); }
.cd-model__val span { font-size: 13px; line-height: 1.55; color: var(--text-secondary); }
.cd-model__cta { justify-self: start; font-family: var(--font-sans); font-weight: 600; font-size: 15px; color: var(--text-brand); text-decoration: none; display: inline-flex; align-items: center; }
.cd-model__cta:hover .sv-btn__arrow { transform: translateX(3px); }
@media (max-width: 980px) { .cd-model { grid-template-columns: 1fr; } .cd-model__values { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .cd-model__values { grid-template-columns: 1fr; } }
.cd-result__ba { display: flex; align-items: center; gap: 9px; }
.cd-result__before { font-family: var(--font-display); font-weight: 700; font-size: 19px; color: var(--text-secondary); line-height: 1; }
.cd-result__after { font-family: var(--font-display); font-weight: 700; font-size: 28px; color: var(--color-bordeaux); line-height: 1; }
.cd-result__l { font-size: 12.5px; color: var(--text-secondary); margin-top: 4px; }
@media (max-width: 980px) { .cd-grid { grid-template-columns: 1fr; } .cd-aside { position: static; } }

/* ---- Service detail (T1) ---- */
.sd-value { max-width: 760px; margin-inline: auto; }
.sd-two { display: grid; grid-template-columns: 1fr 1.4fr; gap: 48px; align-items: start; }
.sd-deliver { list-style: none; margin: var(--space-8) 0 0; padding: 0; display: flex; flex-direction: column; gap: 12px; }
.sd-deliver li { font-size: 15.5px; color: var(--text-primary); padding-left: 26px; position: relative; }
.sd-deliver li::before { content: ""; position: absolute; left: 0; top: 7px; width: 14px; height: 8px; border-left: 2px solid var(--accent); border-bottom: 2px solid var(--accent); transform: rotate(-45deg); }
.sd-tiers { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: var(--space-8); }
.sd-tier { position: relative; background: var(--surface-card); border: 1px solid var(--border-subtle); border-radius: var(--radius-lg); padding: 22px 20px; }
.sd-tier--featured { border-color: var(--color-bordeaux); box-shadow: var(--shadow-md); }
.sd-tier__flag { position: absolute; top: -10px; left: 20px; font-family: var(--font-sans); font-size: 11px; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; background: var(--color-bordeaux); color: var(--color-warm-cream); border-radius: var(--radius-pill); padding: 3px 11px; }
.sd-tier__name { font-family: var(--font-heading); font-size: 18px; font-weight: 600; color: var(--text-primary); }
.sd-tier__who { font-size: 12.5px; color: var(--text-secondary); margin-top: 3px; }
.sd-tier__from { font-family: var(--font-display); font-weight: 700; font-size: 22px; color: var(--color-bordeaux); margin: 14px 0; }
.sd-tier ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.sd-tier li { font-size: 13px; color: var(--text-primary); padding-left: 16px; position: relative; }
.sd-tier li::before { content: ""; position: absolute; left: 0; top: 7px; width: 5px; height: 5px; border-radius: 50%; background: var(--accent); }
@media (max-width: 980px) { .sd-two { grid-template-columns: 1fr; } .sd-tiers { grid-template-columns: 1fr; } }

/* T1 depth slots: intro, evidence, deliverable cards, phase output */
.sd-intro { max-width: 760px; margin-inline: auto; margin-top: var(--space-8); display: flex; flex-direction: column; gap: 16px; }
.sd-intro__context { font-size: 16px; line-height: 1.7; color: var(--text-secondary); margin: 0; }
.sd-intro__solution { font-size: 17px; line-height: 1.7; color: var(--text-primary); font-weight: 500; margin: 0; padding-left: 18px; border-left: 2px solid var(--accent); }
.sd-evidence { display: grid; grid-template-columns: 1.4fr 1fr; gap: 48px; align-items: center; }
.sd-evidence__insight { margin: 0; }
.sd-evidence__stats { display: flex; flex-direction: column; gap: 18px; }
.sd-stat__v { font-size: 40px; line-height: 1; color: var(--color-bordeaux); }
.sd-stat__l { font-size: 13px; color: var(--text-secondary); margin-top: 4px; }
.sd-deliver-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: var(--space-12); }
.sd-deliver-card { background: var(--surface-card); border: 1px solid var(--border-subtle); border-radius: var(--radius-lg); overflow: hidden; display: flex; flex-direction: column; }
.sd-deliver-card__img { aspect-ratio: 4 / 3; background: linear-gradient(140deg, var(--color-deep-navy), var(--color-studio-blue)); display: grid; place-items: center; }
.sd-deliver-card__img img { width: 100%; height: 100%; object-fit: cover; display: block; }
.sd-deliver-card__ph { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.06em; color: color-mix(in srgb, var(--color-warm-cream) 70%, transparent); }
.sd-deliver-card__body { padding: 18px 20px; display: flex; flex-direction: column; gap: 5px; }
.sd-deliver-card__name { font-family: var(--font-heading); font-size: 17px; font-weight: 600; color: var(--text-primary); }
.sd-deliver-card__fmt { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.04em; color: var(--text-accent); }
.sd-deliver-card__benefit { font-size: 13.5px; line-height: 1.55; color: var(--text-secondary); margin: 6px 0 0; }
.sd-tiers--full { grid-template-columns: repeat(3, 1fr); margin-top: var(--space-12); }
.sd-phase__out { display: block; font-size: 12.5px; color: var(--text-accent); margin-top: 6px; font-weight: 500; }
@media (max-width: 980px) {
  .sd-evidence { grid-template-columns: 1fr; gap: 28px; }
  .sd-evidence__stats { flex-direction: row; flex-wrap: wrap; gap: 28px; }
  .sd-deliver-grid, .sd-tiers--full { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) { .sd-deliver-grid, .sd-tiers--full { grid-template-columns: 1fr; } }

/* ---- Brief dialog form ---- */
.brief-form { display: flex; flex-direction: column; gap: 18px; }
.brief-form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* ---- Sub-page: service directions / industry grid / about ---- */
.svc-dir { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: var(--space-12); }
.svc-dir__item { display: flex; flex-direction: column; gap: 10px; background: var(--surface-card); border: 1px solid var(--border-subtle); border-radius: var(--radius-lg); padding: 24px; transition: transform var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out), border-color var(--dur-base) var(--ease-out); }
.svc-dir__item:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: color-mix(in srgb, var(--color-bordeaux) 24%, var(--border-subtle)); }
.svc-dir__n { font-family: var(--font-display); font-weight: 700; font-size: 24px; color: var(--accent); line-height: 1; }
.svc-dir__t { font-family: var(--font-heading); font-size: 18px; font-weight: 600; color: var(--text-primary); margin: 0; }
.svc-dir__d { font-size: 13.5px; line-height: 1.55; color: var(--text-secondary); margin: 0; flex: 1; }
.svc-dir__codes { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.04em; color: var(--text-accent); }

.tier { border-top: 1px solid var(--border-subtle); padding: 24px 0; display: grid; grid-template-columns: 200px 1fr; gap: 32px; }
.tier__label { font-family: var(--font-heading); font-size: 17px; font-weight: 600; color: var(--text-brand); }
.tier__label span { display: block; font-family: var(--font-mono); font-size: 11px; color: var(--text-secondary); margin-top: 4px; font-weight: 400; }
.tier__items { display: flex; flex-wrap: wrap; gap: 10px; }
.tier__svc { font-size: 13px; color: var(--text-primary); background: var(--surface-paper); border: 1px solid var(--hairline); border-radius: var(--radius-pill); padding: 7px 14px; }
.tier__svc b { color: var(--text-accent); font-family: var(--font-mono); font-size: 11px; margin-right: 6px; }

.ind-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: var(--space-12); }
.sectors-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: var(--space-12); }
.ind { background: var(--surface-card); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); padding: 18px 20px; transition: border-color var(--dur-base) var(--ease-out); }
.ind:hover { border-color: var(--color-bordeaux); }
.ind__name { font-family: var(--font-heading); font-size: 16px; font-weight: 600; color: var(--text-primary); }
.ind__niches { font-size: 12px; color: var(--text-secondary); margin-top: 4px; }

.about-lead { max-width: 760px; }
.about-lead p { font-size: 18px; line-height: 1.7; color: var(--text-primary); }
.about-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; margin-top: var(--space-12); }

@media (max-width: 980px) {
  .svc-dir, .ind-grid { grid-template-columns: 1fr 1fr; }
  .tier { grid-template-columns: 1fr; gap: 14px; }
  .about-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) { .svc-dir, .ind-grid { grid-template-columns: 1fr; } }

@media (max-width: 980px) {
  .services__grid, .cases__grid, .positioning__grid { grid-template-columns: 1fr 1fr; }
  .sectors-grid { grid-template-columns: 1fr 1fr; }
  .process__grid { grid-template-columns: 1fr 1fr; }
  .process__grid > * { grid-row: auto !important; }
  .diagnosis__head, .footer__top { grid-template-columns: 1fr; }
  .footer__cols { grid-template-columns: repeat(2, 1fr); }
  .nav__links { display: none; }
}
@media (max-width: 640px) {
  .services__grid, .cases__grid, .positioning__grid, .process__grid, .footer__cols, .brief-form__row { grid-template-columns: 1fr; }
  .sectors-grid { grid-template-columns: 1fr; }
}
/* === Premium service hero split + value/proof (Khoai 2026-06-30) === */
.hero__inner--split { display: grid; grid-template-columns: 1.3fr 0.72fr; gap: 64px; align-items: stretch; padding: 92px 32px 84px; }
.hero__inner--split .hero__main { min-width: 0; align-self: center; }
.hero__inner--split .hero__lead { max-width: 48ch; }
.hero__facts { display: flex; flex-direction: column; justify-content: center; padding: 14px 32px; border: 1px solid color-mix(in srgb, var(--color-off-white) 20%, transparent); border-radius: 20px; background: color-mix(in srgb, var(--color-off-white) 5%, transparent); }
.hero__facts-img { width: 100%; height: 100%; object-fit: cover; border-radius: 14px; display: block; }
.hero__fact { padding: 22px 0; border-bottom: 1px solid color-mix(in srgb, var(--color-off-white) 13%, transparent); }
.hero__fact:last-child { border-bottom: none; }
.hero__fact-v { font-size: 36px; line-height: 1.05; color: var(--color-warm-cream); }
.hero__fact-l { font-size: 14px; margin-top: 6px; color: color-mix(in srgb, var(--color-off-white) 68%, transparent); }
@media (max-width: 900px) { .hero__inner--split { grid-template-columns: 1fr; gap: 28px; padding: 72px 24px 52px; } }

.sd-vproof { display: grid; grid-template-columns: 1.5fr 1fr; gap: 56px; align-items: start; margin-top: 28px; }
.sd-vproof__main { min-width: 0; }
.sd-vproof__insight { margin: 28px 0 0; padding: 0 0 0 20px; border-left: 3px solid var(--accent); font-size: 20px; line-height: 1.5; color: var(--text-primary); font-style: normal; }
.sd-vproof__stats { display: flex; flex-direction: column; gap: 22px; padding: 32px; background: var(--surface-paper); border: 1px solid var(--hairline); border-radius: 20px; position: sticky; top: 96px; }
@media (max-width: 900px) { .sd-vproof { grid-template-columns: 1fr; gap: 32px; } .sd-vproof__stats { position: static; } }
/* === Portfolio + clients/partners trust modules (Khoai 2026-06-30) === */
.section { padding: clamp(60px, 6.2vw, 84px) 0; }
.sd-portfolio { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: var(--space-12); }
.pf-card { border: 1px solid var(--border-subtle); border-radius: 16px; overflow: hidden; background: var(--surface-card); transition: transform 240ms ease, box-shadow 240ms ease; }
.pf-card:hover { transform: translateY(-3px); box-shadow: 0 10px 28px -12px rgba(3,29,68,0.20); border-color: var(--border-strong); }
.pf-card__img { aspect-ratio: 4 / 3; background: linear-gradient(135deg, var(--color-deep-navy), var(--color-studio-blue)); display: flex; align-items: center; justify-content: center; }
.pf-card__img img { width: 100%; height: 100%; object-fit: cover; }
.pf-card__ph { font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase; color: color-mix(in srgb, var(--color-off-white) 52%, transparent); }
.pf-card__body { padding: 20px 22px 24px; }
.pf-card__svc { display: inline-block; font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-brand); font-weight: 600; }
.pf-card__title { font-family: var(--font-heading); font-weight: 600; font-size: 21px; color: var(--text-primary); margin-top: 8px; line-height: 1.2; }
.pf-card__client { font-size: 14px; color: var(--text-secondary); margin-top: 4px; }
.pf-card__result { font-size: 14px; color: var(--text-accent); font-weight: 600; margin-top: 14px; }
@media (max-width: 900px) { .sd-portfolio { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) { .sd-portfolio { grid-template-columns: 1fr; } }

.sd-trustbar { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: var(--space-8); padding: 30px 0; border-top: 1px solid var(--hairline); border-bottom: 1px solid var(--hairline); }
.sd-trust { text-align: center; }
.sd-trust__v { font-size: 42px; color: var(--text-brand); line-height: 1; }
.sd-trust__l { font-size: 14px; color: var(--text-secondary); margin-top: 8px; }
.sd-logos { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: var(--space-12); }
.sd-logo { aspect-ratio: 5 / 2; border: 1px solid var(--border-subtle); border-radius: 12px; display: flex; align-items: center; justify-content: center; background: var(--surface-card); }
.sd-logo img { max-width: 72%; max-height: 56%; object-fit: contain; filter: grayscale(1); opacity: 0.7; }
.sd-logo__ph { font-family: var(--font-heading); font-weight: 600; font-size: 15px; color: var(--text-secondary); letter-spacing: 0.02em; }
@media (max-width: 700px) { .sd-logos { grid-template-columns: repeat(2, 1fr); } .sd-trustbar { grid-template-columns: 1fr; gap: 14px; padding: 22px 0; } }


/* ── Sector editorial index (nganh listing) — 2026-07-01 ── */
.sec-index { margin-top: var(--space-12); border-top: 1px solid var(--border-strong); }
.sec-row {
  display: grid; grid-template-columns: 56px 1fr auto 24px; align-items: center; gap: 28px;
  padding: 26px 14px; border-bottom: 1px solid var(--hairline);
  text-decoration: none; color: inherit; position: relative;
  transition: background var(--dur-base) var(--ease-out), padding-left var(--dur-base) var(--ease-out);
}
.sec-row::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 2px;
  background: var(--brand); transform: scaleY(0); transform-origin: top;
  transition: transform var(--dur-base) var(--ease-out);
}
.sec-row:hover { background: var(--surface-paper); padding-left: 22px; }
.sec-row:hover::before { transform: scaleY(1); }
.sec-row:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; }
.sec-row__idx {
  font-family: var(--font-mono); font-size: 14px; font-weight: 500;
  color: var(--text-secondary); letter-spacing: 0.06em; align-self: start; padding-top: 8px;
  transition: color var(--dur-base) var(--ease-out);
}
.sec-row:hover .sec-row__idx { color: var(--brand); }
.sec-row__body { min-width: 0; }
.sec-row__name {
  font-family: var(--font-heading); font-weight: 600;
  font-size: clamp(1.4rem, 1rem + 1.5vw, 2rem); line-height: 1.12;
  color: var(--color-deep-navy); margin: 0; letter-spacing: -0.01em;
  transition: color var(--dur-base) var(--ease-out);
}
.sec-row:hover .sec-row__name { color: var(--brand); }
.sec-row__preview { font-size: 13.5px; line-height: 1.5; color: var(--text-secondary); margin: 8px 0 0; }
.sec-row__dot { color: var(--border-strong); margin: 0 7px; }
.sec-row__meta { text-align: right; white-space: nowrap; align-self: center; }
.sec-row__count { font-family: var(--font-heading); font-weight: 600; font-size: 22px; color: var(--color-deep-navy); font-variant-numeric: tabular-nums; }
.sec-row__count-l { font-size: 11px; letter-spacing: var(--tracking-caps); text-transform: uppercase; color: var(--text-secondary); margin-left: 7px; }
.sec-row__arrow { font-size: 20px; color: var(--text-secondary); transition: color var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out); }
.sec-row:hover .sec-row__arrow { color: var(--brand); transform: translateX(4px); }
@media (max-width: 720px) {
  .sec-row { grid-template-columns: 32px 1fr auto; gap: 14px; padding: 20px 4px; }
  .sec-row:hover { padding-left: 8px; }
  .sec-row__preview { display: none; }
  .sec-row__arrow { display: none; }
  .sec-row__idx { padding-top: 4px; }
}
@media (prefers-reduced-motion: reduce) { .sec-row, .sec-row::before, .sec-row__arrow, .sec-row__name, .sec-row__idx { transition-duration: 0.001ms; } }


/* ── svc-dir: bọc ServiceCard thành link, cao đều (2026-07-01) ── */
.svc-dir__link { display: block; text-decoration: none; color: inherit; }
.svc-dir__link .sv-svc { height: 100%; }


/* ── tier-block: 17 dịch vụ theo nhóm dạng ServiceCard grid (2026-07-01) ── */
.tier-block { margin-bottom: 44px; }
.tier-block__head { display: flex; align-items: baseline; gap: 12px; padding-bottom: 14px; margin-bottom: 20px; border-bottom: 1px solid var(--hairline); }
.tier-block__label { font-family: var(--font-heading); font-weight: 600; font-size: 20px; color: var(--color-deep-navy); }
.tier-block__en { font-family: var(--font-mono); font-size: 11px; letter-spacing: var(--tracking-caps); text-transform: uppercase; color: var(--text-secondary); }
.tier-svc-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
@media (max-width: 1100px) { .tier-svc-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .tier-svc-grid { grid-template-columns: 1fr; } }

/* ===== MOBILE NAV DRAWER + RESPONSIVE POLISH · DS v6 (2026-07-02) ===== */
/* Fluid horizontal padding (was fixed 32px) so content never cramps < 360px */
.container { padding-inline: clamp(16px, 4.5vw, 32px); }
.hero__inner { padding-left: clamp(16px, 4.5vw, 32px); padding-right: clamp(16px, 4.5vw, 32px); }

/* Hamburger button — hidden on desktop, shown when nav links collapse */
.nav__burger { display: none; align-items: center; justify-content: center; width: 44px; height: 44px; margin-left: 6px; padding: 0; border: none; background: transparent; color: var(--color-warm-cream); cursor: pointer; border-radius: var(--radius-sm); flex: none; }
.nav__burger svg { width: 24px; height: 24px; }

/* Drawer (DS Drawer pattern: slide-in from right, scrim, min(360px,86vw)) */
.nav-drawer { position: fixed; inset: 0; z-index: var(--z-modal, 1100); visibility: hidden; overflow: hidden; }
.nav-drawer[data-open] { visibility: visible; }
.nav-drawer__scrim { position: absolute; inset: 0; background: color-mix(in srgb, var(--color-deep-navy) 64%, transparent); opacity: 0; transition: opacity var(--dur-base, 240ms) var(--ease-out, ease); }
.nav-drawer[data-open] .nav-drawer__scrim { opacity: 1; }
.nav-drawer__panel { position: absolute; top: 0; right: 0; height: 100%; width: min(360px, 86vw); background: var(--color-deep-navy); border-left: 1px solid color-mix(in srgb, #ffffff 10%, transparent); display: flex; flex-direction: column; padding: 18px 22px calc(24px + env(safe-area-inset-bottom, 0px)); transform: translateX(100%); transition: transform var(--dur-base, 240ms) var(--ease-out, ease); overflow-y: auto; -webkit-overflow-scrolling: touch; }
.nav-drawer[data-open] .nav-drawer__panel { transform: translateX(0); }
.nav-drawer__head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.nav-drawer__brand { font-family: var(--font-heading); font-weight: 600; font-size: 1.1rem; color: var(--color-warm-cream); letter-spacing: 0.01em; }
.nav-drawer__close { width: 44px; height: 44px; display: inline-flex; align-items: center; justify-content: center; margin-right: -8px; padding: 0; border: none; background: transparent; color: var(--color-warm-cream); cursor: pointer; border-radius: var(--radius-sm); }
.nav-drawer__close svg { width: 22px; height: 22px; }
.nav-drawer__links { display: flex; flex-direction: column; }
.nav-drawer__links a { display: flex; align-items: center; min-height: 52px; font-family: var(--font-heading); font-weight: 600; font-size: 1.2rem; color: var(--color-off-white); text-decoration: none; border-bottom: 1px solid color-mix(in srgb, #ffffff 8%, transparent); transition: color var(--dur-fast, 140ms) var(--ease-out, ease); }
.nav-drawer__links a:hover, .nav-drawer__links a:active { color: var(--color-warm-cream); }
.nav-drawer__cta { margin-top: 22px; }

@media (max-width: 980px) {
  .nav__burger { display: inline-flex; }
  .nav__actions > .sv-btn { display: none; }   /* header CTA moves into drawer */
}
@media (min-width: 981px) {
  .nav-drawer { display: none; }
}
@media (max-width: 600px) {
  .hero__inner { padding-left: 20px !important; padding-right: 20px !important; }
}


/* Mobile grid safety-net: force card grids to 1 column <=640px, beating inline grid-template-columns */
@media (max-width: 640px) {
  .groups__grid, .doors, .reasons__grid, .cases__grid, .about-grid,
  .services__grid, .positioning__grid, .process__grid, .svc-dir,
  .sd-portfolio, .sd-deliver-grid, .ind-grid, .sectors-grid { grid-template-columns: 1fr !important; }
  .selfcase__stats { grid-template-columns: 1fr 1fr; }
}

/* ── Thẻ dự án .sv-case v2: dựng lại có tôn ti (ảnh sạch → ngành → TÊN → tóm tắt → chuyên môn → CTA) ── */
.sv-case .sv-case__veil {
  background: linear-gradient(to top, color-mix(in srgb, var(--color-deep-navy) 62%, transparent) 0%,
              color-mix(in srgb, var(--color-deep-navy) 8%, transparent) 34%, transparent 60%); }
.sv-case .sv-case__tier {
  position: absolute; left: 16px; bottom: 13px; z-index: 2;
  font-family: var(--font-mono); font-size: 11px; font-weight: 600; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--color-warm-cream); opacity: 0.9; }
.sv-case .sv-case__body {
  padding: 22px 22px 20px; gap: 0; }
.sv-case .sv-case__eyebrow {
  font-family: var(--font-sans); font-size: 10.5px; font-weight: 600; letter-spacing: 0.15em;
  text-transform: uppercase; color: var(--text-secondary); margin: 0 0 9px; display: block; }
.sv-case .sv-case__title {
  font-family: var(--font-heading); font-size: 22px; font-weight: 600; letter-spacing: -0.01em;
  line-height: 1.14; color: var(--text-primary); margin: 0; text-wrap: balance; }
.sv-case .sv-case__summary {
  font-family: var(--font-sans); font-size: 13.5px; line-height: 1.6; color: var(--text-secondary);
  margin: 10px 0 0; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.sv-case .sv-case__svc {
  font-family: var(--font-sans); font-size: 12px; letter-spacing: 0.01em; color: var(--text-secondary);
  margin: 12px 0 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; opacity: 0.85; }
.sv-case .sv-case__foot {
  margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--hairline);
  display: flex; align-items: center; justify-content: space-between; }
.sv-case .sv-case__cta {
  font-family: var(--font-sans); font-size: 13px; font-weight: 600; color: var(--text-primary);
  display: inline-flex; align-items: center; gap: 7px; }
.sv-case:hover .sv-case__cta { color: var(--text-brand); }

/* ═══ FIX VĂNG NGANG MOBILE · nút CTA dài + khối Brand OS (Khoai 2026-07-11) ═══ */
/* Nút chữ dài (vd "Nhận chẩn đoán cho thương hiệu của Anh / Chị") đang để white-space:nowrap
   nên không xuống dòng, đẩy cả trang rộng hơn màn hình → cả bài văng ngang. Chặn ở đây.
   Selector "body .sv-btn" (đặc hiệu 0,1,1) thắng khối .sv-btn inline nạp sau, khỏi cần !important. */
@media (max-width: 640px) {
  body .sv-btn { max-width: 100%; white-space: normal; }
  .sv-btn__inner { flex-wrap: wrap; justify-content: center; }
  /* CTA chính trong bài viết và cuối trang: cho tràn hàng, vùng chạm rộng, canh giữa */
  .art-apply .sv-btn,
  .art-cta .sv-btn,
  .content__cta-actions .sv-btn { width: 100%; text-align: center; }
  /* Chữ dài + mũi tên chảy inline, canh giữa (thắng display:inline-flex đặt cứng trên span).
     Nhờ vậy mũi tên bám cuối câu, không rớt xuống một dòng riêng lệch trái. */
  .art-apply .sv-btn .sv-btn__inner,
  .art-cta .sv-btn .sv-btn__inner,
  .content__cta-actions .sv-btn .sv-btn__inner { display: inline !important; }
  .art-apply .sv-btn .sv-btn__arrow,
  .art-cta .sv-btn .sv-btn__arrow,
  .content__cta-actions .sv-btn .sv-btn__arrow { margin-left: 8px; }
}
/* Khối "self case" (Brand OS) mặc định 2 cột, chưa có mốc mobile nên chen chật và tràn ở 360px.
   Xếp dọc dưới 720px để chữ và số dùng đủ bề rộng. */
@media (max-width: 720px) {
  .selfcase { grid-template-columns: 1fr; gap: 32px; }
}