/*
Theme Name: SFAI - KMF
Theme URI: https://sfai-vn.com
Author: SFAI - KMF
Description: Custom theme for SFAI – KMF Auditing Company. Kiểm toán – Tư vấn – Giải pháp.
Version: 1.0.0
Requires at least: 5.8
Tested up to: 6.6
Requires PHP: 7.4
License: GNU General Public License v2 or later
Text Domain: sfai-kmf
*/

/* ============ Variables & reset ============ */
:root{
  --purple-900:#241043;
  --purple-800:#2d1751;
  --purple-700:#3a1f66;
  --purple-600:#4a2a80;
  --purple-500:#5d3a99;
  --gold:#f2a30f;
  --gold-2:#f7b733;
  --ink:#20242e;
  --muted:#6b7280;
  --line:#e7e7ef;
  --bg:#ffffff;
  --bg-soft:#f6f6fb;
  --container:1180px;
  --radius:10px;
  --shadow:0 18px 40px rgba(36,16,67,.10);
  --font:"Inter","Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);font-size:16.5px;line-height:1.7;letter-spacing:-.003em;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0 0 .5em;line-height:1.2;font-weight:800}
p{margin:0 0 1em}
.container{max-width:var(--container);margin:0 auto;padding:0 20px}
.btn{display:inline-flex;align-items:center;gap:10px;padding:14px 26px;border-radius:8px;font-weight:700;font-size:14px;letter-spacing:.3px;cursor:pointer;border:2px solid transparent;transition:.25s}
.btn-primary{background:var(--purple-700);color:#fff}
.btn-primary:hover{background:var(--purple-600)}
.btn-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-outline:hover{background:#fff;color:var(--purple-800)}
.btn-arrow svg{width:16px;height:16px}
.section{padding:84px 0}
.eyebrow{display:inline-flex;align-items:center;gap:12px;color:var(--gold);font-weight:800;font-size:13px;letter-spacing:2px;text-transform:uppercase;margin-bottom:14px}
.eyebrow::before{content:"";width:32px;height:2px;background:var(--gold)}
.eyebrow.center{justify-content:center}
.eyebrow.center::after{content:"";width:32px;height:2px;background:var(--gold)}

/* ============ Header ============ */
.site-header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:26px;height:104px}
.brand{display:flex;align-items:center;gap:14px;font-weight:900}
.brand .logo-sfai{display:flex;align-items:center;gap:8px;font-size:22px;color:var(--purple-800);letter-spacing:.5px}
.brand .logo-sfai .dot{width:30px;height:30px;border-radius:50%;background:linear-gradient(135deg,var(--purple-600),var(--purple-800));display:inline-block}
.brand .sep{width:1px;height:30px;background:var(--line)}
.brand .logo-kmf{display:flex;align-items:center;gap:4px;font-size:22px;color:#111;font-weight:900}
.brand .logo-kmf .chev{color:var(--gold)}
.brand-sfai{display:inline-flex;align-items:flex-start;gap:2px;font-size:21px;font-weight:900;color:var(--purple-800);letter-spacing:.5px}
.brand-sfai sup{font-size:9px;font-weight:700;color:#8a8f9c;letter-spacing:1.5px;top:-.2em}
.logo-kmf-img{height:30px;width:auto;display:block}
.logo-sfai-img{height:44px;width:auto;display:block}
.logo-combined{height:80px;width:auto;display:block}
.brand{gap:16px}
.main-nav{margin-left:8px}
.main-nav ul{list-style:none;display:flex;gap:30px;margin:0;padding:0}
.main-nav a{font-weight:700;font-size:14.5px;letter-spacing:.4px;text-transform:uppercase;color:#33384a;padding:8px 0;position:relative}
.main-nav a:hover,.main-nav .current-menu-item>a,.main-nav .active>a{color:var(--purple-700)}
.main-nav a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--gold);transition:.25s}
.main-nav a:hover::after,.main-nav .current-menu-item>a::after,.main-nav .active>a::after{width:100%}
.header-cta{margin-left:auto;display:flex;align-items:center;gap:14px}
.pill{border:1px solid var(--line);border-radius:8px;padding:9px 14px;display:flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:#444;cursor:pointer;transition:.2s}
.pill:hover{border-color:var(--purple-600);color:var(--purple-700)}
.lang{font-weight:700;font-size:13px;color:#444;display:flex;align-items:center;gap:6px}
.header-cta .btn{padding:11px 20px}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;flex-direction:column;gap:5px;padding:8px}
.nav-toggle span{width:24px;height:2px;background:var(--purple-800);display:block}

/* ============ Hero ============ */
.hero{position:relative;color:#fff;background:linear-gradient(115deg,rgba(28,12,52,.94) 0%,rgba(40,20,75,.82) 45%,rgba(40,20,75,.35) 100%),#241043 center/cover no-repeat;min-height:560px;display:flex;align-items:center}
.hero.has-bg{background-image:linear-gradient(115deg,rgba(28,12,52,.94) 0%,rgba(40,20,75,.80) 45%,rgba(40,20,75,.30) 100%),var(--hero-img)}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:30px;align-items:center;width:100%;padding:60px 0}
.hero .eyebrow{color:var(--gold)}
.hero h1{font-size:50px;line-height:1.08;letter-spacing:.5px;text-transform:uppercase}
.hero p{max-width:560px;color:rgba(255,255,255,.85);font-size:16px}
.hero-actions{display:flex;gap:16px;margin-top:26px;flex-wrap:wrap}
.hero-video{display:flex;flex-direction:column;align-items:center;gap:14px;justify-self:center}
.play{width:88px;height:88px;border-radius:50%;background:rgba(255,255,255,.16);backdrop-filter:blur(2px);display:flex;align-items:center;justify-content:center;border:2px solid rgba(255,255,255,.5);cursor:pointer;transition:.25s}
.play:hover{background:rgba(255,255,255,.28);transform:scale(1.05)}
.play svg{width:30px;height:30px;fill:#fff;margin-left:5px}
.hero-video span{font-size:14px;letter-spacing:.5px;color:rgba(255,255,255,.9)}

/* ============ Scroll reveal — fadeInUp (giống santafe-associates.com) ============ */
.reveal{opacity:0;transform:translateY(48px);transition:opacity .9s cubic-bezier(.22,.61,.36,1),transform .9s cubic-bezier(.22,.61,.36,1);will-change:opacity,transform}
.reveal.in{opacity:1;transform:none}
.service-grid .reveal,.features .reveal,.stats-grid .reveal{transition-delay:var(--d,0s)}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1!important;transform:none!important;transition:none!important}}

/* ============ Hover grow (giống animation-grow của santafe) ============ */
.service-card{transition:transform .35s ease,box-shadow .35s ease}
.service-card:hover{transform:translateY(-8px);box-shadow:0 26px 50px rgba(36,16,67,.18)}
.feature .ic{transition:transform .35s ease,border-color .35s ease,color .35s ease}
.feature:hover .ic{transform:translateY(-5px);border-color:var(--gold);color:var(--gold)}
.client-logo{transition:transform .3s ease,filter .25s ease,opacity .25s ease,color .25s ease}
.client-logo:hover{transform:scale(1.12)}
.stat .num{transition:transform .3s ease;transform-origin:left}
.stat:hover .num{transform:scale(1.07)}

/* ============ About / features ============ */
.about-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:54px;align-items:center}
.about h2{font-size:34px;color:var(--purple-800);text-transform:uppercase}
.about p{color:var(--muted)}
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.feature{text-align:center}
.feature .ic{width:78px;height:78px;margin:0 auto 16px;border:2px solid var(--line);border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--purple-700)}
.feature .ic svg{width:34px;height:34px}
.feature h4{font-size:15px;letter-spacing:.5px;color:var(--purple-800);text-transform:uppercase}
.feature p{font-size:14px;color:var(--muted);margin:0}

/* ============ Services ============ */
.services{background:var(--bg-soft)}
.section-head{text-align:center;max-width:720px;margin:0 auto 50px}
.section-head h2{font-size:32px;color:var(--purple-800);text-transform:uppercase}
.section-head p{color:var(--muted)}
.service-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.service-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column}
.service-card .thumb{height:165px;background:linear-gradient(135deg,var(--purple-500),var(--purple-800));background-size:cover;background-position:center top;position:relative}
.service-card .body{background:linear-gradient(180deg,var(--purple-700),var(--purple-800));color:#fff;padding:42px 22px 26px;position:relative;flex:1;text-align:center}
.service-card .badge{position:absolute;top:-28px;left:50%;transform:translateX(-50%);width:56px;height:56px;border-radius:50%;background:#fff;display:flex;align-items:center;justify-content:center;color:var(--purple-700);box-shadow:0 8px 18px rgba(0,0,0,.18)}
.service-card .badge svg{width:26px;height:26px}
.service-card h3{font-size:16px;text-transform:uppercase;letter-spacing:.4px}
.service-card p{font-size:13.5px;color:rgba(255,255,255,.82)}
.service-card .more{display:inline-flex;align-items:center;gap:8px;color:var(--gold-2);font-weight:700;font-size:13px;letter-spacing:.5px;text-transform:uppercase;margin-top:8px}
.service-card .more svg{width:16px;height:16px}

/* ============ Stats ============ */
.stats{background:linear-gradient(120deg,var(--purple-900),var(--purple-700));color:#fff;padding:54px 0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{display:flex;align-items:center;gap:18px;padding:8px 26px;border-left:1px solid rgba(255,255,255,.12)}
.stat:first-child{border-left:0}
.stat .ic{color:rgba(255,255,255,.85)}
.stat .ic svg{width:42px;height:42px}
.stat .num{font-size:38px;font-weight:900;color:var(--gold-2);line-height:1}
.stat .lab{font-weight:800;text-transform:uppercase;font-size:14px;letter-spacing:.5px;margin-top:4px}
.stat .sub{font-size:12.5px;color:rgba(255,255,255,.7)}

/* ============ Clients ============ */
.clients{padding:64px 0;overflow:hidden}
.clients h2{text-align:center;font-size:26px;color:var(--purple-800);text-transform:uppercase;margin-bottom:36px}
.marquee{position:relative;width:100%;overflow:hidden;padding:14px 0;-webkit-mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent);mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent)}
.marquee-track{display:flex;align-items:center;gap:70px;width:max-content;animation:marquee 32s linear infinite}
.marquee:hover .marquee-track{animation-play-state:paused}
.marquee-item{display:flex;align-items:center;justify-content:center;height:58px;flex:0 0 auto}
.marquee-item img{max-height:58px;width:auto;object-fit:contain;filter:grayscale(1);opacity:.62;transition:transform .3s ease,filter .3s ease,opacity .3s ease}
.marquee-item img:hover{filter:none;opacity:1;transform:scale(1.08)}
.marquee-item .txt{font-weight:800;color:#9aa0ad;font-size:22px;letter-spacing:.5px;white-space:nowrap;transition:color .3s ease,transform .3s ease}
.marquee-item .txt:hover{color:var(--purple-700);transform:scale(1.08)}
@keyframes marquee{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ============ Footer ============ */
.site-footer{background:linear-gradient(160deg,var(--purple-800),var(--purple-900));color:rgba(255,255,255,.78);padding:60px 0 0}
.footer-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:40px}
.footer-col h4{color:#fff;font-size:15px;text-transform:uppercase;letter-spacing:.6px;margin-bottom:20px;position:relative;padding-bottom:12px}
.footer-col h4::after{content:"";position:absolute;left:0;bottom:0;width:36px;height:2px;background:var(--gold)}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:11px}
.footer-col a:hover{color:var(--gold-2)}
.footer-contact li{display:flex;gap:12px;margin-bottom:13px;font-size:14.5px}
.footer-contact svg{width:18px;height:18px;flex:0 0 auto;color:var(--gold-2);margin-top:3px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:48px;padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px}
.footer-bottom a:hover{color:#fff}
.footer-social{display:flex;gap:10px}
.footer-social a{width:34px;height:34px;border-radius:50%;background:rgba(255,255,255,.1);display:flex;align-items:center;justify-content:center}
.footer-social a:hover{background:var(--gold)}
.footer-social svg{width:16px;height:16px;fill:#fff}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:900;color:#fff;font-size:20px}

/* ============ Generic page ============ */
.page-hero{background:linear-gradient(120deg,var(--purple-900),var(--purple-700));color:#fff;padding:70px 0;text-align:center}
.page-hero h1{font-size:38px;text-transform:uppercase}
.page-hero .crumb{color:rgba(255,255,255,.7);font-size:14px}
.page-body{padding:70px 0}
.page-body h2{color:var(--purple-800)}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.contact-card{background:var(--bg-soft);border-radius:12px;padding:30px}
.contact-card li{display:flex;gap:14px;margin-bottom:18px}
.contact-card svg{width:20px;height:20px;color:var(--purple-700);flex:0 0 auto;margin-top:3px}

/* ============ Why choose (homepage) ============ */
.why{background:var(--bg-soft)}
.why-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:20px;margin-top:42px}
.why-item{background:#fff;border-radius:12px;padding:28px 18px;text-align:center;box-shadow:var(--shadow);transition:transform .35s ease}
.why-item:hover{transform:translateY(-8px)}
.why-item .ic{width:62px;height:62px;margin:0 auto 16px;border-radius:16px;background:linear-gradient(135deg,var(--purple-600),var(--purple-800));display:flex;align-items:center;justify-content:center;color:#fff}
.why-item .ic svg{width:28px;height:28px}
.why-item h4{font-size:15px;color:var(--purple-800);margin:0;line-height:1.35}

/* ============ Service detail pages ============ */
.page-hero.has-img{background-size:cover;background-position:center;position:relative}
.svc-detail{display:grid;grid-template-columns:1fr 330px;gap:48px;align-items:start}
.svc-main .lead{font-size:18.5px;color:var(--ink);font-weight:500;line-height:1.75;margin-bottom:8px;padding:22px 26px;background:var(--bg-soft);border-radius:14px;border-left:4px solid var(--gold)}
.svc-block{margin-top:34px}
.svc-block h2{font-size:22px;color:var(--purple-800);margin:0 0 18px;text-transform:none;position:relative;padding-left:42px;display:flex;align-items:center;min-height:34px}
.svc-block h2 .hic{position:absolute;left:0;top:0;width:34px;height:34px;border-radius:9px;background:linear-gradient(135deg,var(--purple-600),var(--purple-800));display:flex;align-items:center;justify-content:center;color:#fff}
.svc-block h2 .hic svg{width:18px;height:18px}
.svc-main .check-list{grid-template-columns:repeat(2,1fr);gap:14px 28px}
.check-list{list-style:none;margin:0 0 8px;padding:0;display:grid;gap:13px}
.check-list li{position:relative;padding-left:36px;color:#42485a;font-size:15.5px;line-height:1.6}
.check-list li::before{content:"";position:absolute;left:0;top:1px;width:23px;height:23px;border-radius:50%;background:linear-gradient(135deg,var(--purple-600),var(--purple-800))}
.check-list li::after{content:"";position:absolute;left:7.5px;top:8px;width:8px;height:4px;border-left:2px solid #fff;border-bottom:2px solid #fff;transform:rotate(-45deg)}
.svc-cta{margin-top:38px;background:linear-gradient(120deg,var(--purple-800),var(--purple-700));color:#fff;border-radius:14px;padding:30px 32px;display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap}
.svc-cta h3{color:#fff;margin:0;font-size:21px}
.svc-cta p{margin:5px 0 0;color:rgba(255,255,255,.82);font-size:14px}
.svc-side{position:sticky;top:124px;display:flex;flex-direction:column;gap:22px}
.svc-img{width:100%;height:200px;border-radius:14px;background-size:cover;background-position:center;box-shadow:var(--shadow)}
.svc-nav{background:var(--bg-soft);border-radius:14px;padding:10px}
.svc-nav h4{font-size:14px;color:var(--purple-800);text-transform:uppercase;letter-spacing:.6px;padding:14px 16px 10px;margin:0}
.svc-nav a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:13px 16px;border-radius:9px;font-weight:600;font-size:14.5px;color:#3a3f4f;transition:.2s}
.svc-nav a svg{width:15px;height:15px;flex:0 0 auto;opacity:.6}
.svc-nav a:hover,.svc-nav a.active{background:linear-gradient(120deg,var(--purple-700),var(--purple-800));color:#fff}
.svc-nav a:hover svg,.svc-nav a.active svg{opacity:1}
.contact-box{background:linear-gradient(160deg,var(--purple-800),var(--purple-900));color:#fff;border-radius:14px;padding:24px}
.contact-box h4{color:#fff;font-size:16px;margin:0 0 14px}
.contact-box p{margin:0 0 10px;font-size:14px;color:rgba(255,255,255,.85);display:flex;gap:10px}
.contact-box p svg{width:17px;height:17px;flex:0 0 auto;color:var(--gold-2)}
.contact-box a{color:var(--gold-2);font-weight:700}

/* ============ Responsive ============ */
@media(max-width:1024px){
  .hero h1{font-size:40px}
  .service-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .stat{border-left:0}
}
@media(max-width:860px){
  .main-nav,.header-cta .pill,.header-cta .lang{display:none}
  .nav-toggle{display:flex}
  .header-cta{margin-left:auto}
  .main-nav.open{display:block;position:absolute;top:104px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:14px 20px}
  .main-nav.open ul{flex-direction:column;gap:6px}
  .hero-grid,.about-grid,.features,.contact-grid,.svc-detail{grid-template-columns:1fr}
  .svc-side{position:static}
  .svc-main .check-list{grid-template-columns:1fr}
  .why-grid{grid-template-columns:repeat(2,1fr)}
  .hero-video{display:none}
  .hero h1{font-size:34px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .section{padding:56px 0}
}
@media(max-width:560px){
  .service-grid,.footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;text-align:center}
}