/*
Theme Name: Song Việt
Theme URI: https://songviet.example
Author: Song Việt
Author URI: https://songviet.example
Description: Giao diện tuỳ chỉnh cho Công ty TNHH Phát triển Song Việt — Chuyên khảo sát xây dựng — khảo sát địa chất công trình, khảo sát địa hình và thí nghiệm đất, cung cấp số liệu chính xác phục vụ thiết kế và thi công cho công trình dân dụng, công nghiệp tại TP. Hồ Chí Minh và các tỉnh lân cận.
Version: 1.0
Requires at least: 6.0
Requires PHP: 7.4
Text Domain: songviet
*/


/* ============================================================
   SONG VIỆT — TOKENS
   ============================================================ */
:root{
  --navy-950:#081C2B;
  --navy-800:#0C2E44;
  --navy-700:#123A54;
  --blue-600:#0868A0;
  --blue-500:#0183CB;
  --blue-100:#E5F3FA;
  --red-600:#D61A21;
  --red-700:#AE1017;
  --ink-900:#16232C;
  --steel-600:#5C6B78;
  --steel-300:#AEBAC4;
  --line:#DCE3E8;
  --paper:#F6F8F9;
  --white:#FFFFFF;
  --r-sm:3px;
  --r-md:6px;
  --shadow-pop: 0 12px 32px -8px rgba(8,28,43,.35);
  --font-head:'Oswald', 'Arial Narrow', sans-serif;
  --font-body:'Be Vietnam Pro','Segoe UI',Roboto,sans-serif;
  --container:1180px;
}

/* ============================================================
   RESET / BASE
   ============================================================ */
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--ink-900);
  background:var(--paper);
  line-height:1.6;
  font-size:16px;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{list-style:none;margin:0;padding:0;}
h1,h2,h3,h4{font-family:var(--font-head);font-weight:600;line-height:1.15;margin:0 0 .5em;color:var(--navy-950);}
p{margin:0 0 1em;}
button{font-family:inherit;cursor:pointer;}
input,textarea,select{font-family:inherit;font-size:1rem;}
.container{max-width:var(--container);margin-inline:auto;padding-inline:20px;}
section{padding:56px 0;}
:focus-visible{outline:3px solid var(--blue-500);outline-offset:2px;}
.skip-link{position:absolute;left:-999px;top:0;background:var(--navy-950);color:#fff;padding:12px 18px;z-index:200;border-radius:0 0 var(--r-md) 0;}
.skip-link:focus{left:0;}
@media (prefers-reduced-motion:reduce){ html{scroll-behavior:auto;} *{animation-duration:.001ms !important;transition-duration:.001ms !important;} }

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 24px;border-radius:var(--r-sm);font-weight:600;font-size:.98rem;border:1px solid transparent;line-height:1;white-space:nowrap;transition:background-color .15s ease, border-color .15s ease, color .15s ease;}
.btn-primary{background:var(--red-600);color:#fff;}
.btn-primary:hover{background:var(--red-700);}
.btn-outline{background:transparent;border-color:rgba(255,255,255,.5);color:#fff;}
.btn-outline:hover{background:rgba(255,255,255,.12);}
.btn-call{background:var(--blue-500);color:#fff;}
.btn-call:hover{background:var(--blue-600);}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--navy-950);padding:11px 18px;}
.btn-ghost:hover{border-color:var(--blue-500);color:var(--blue-600);}
.btn-block{width:100%;}
.btn-sm{padding:7px 12px;font-size:.85rem;}
.btn[disabled]{opacity:.45;cursor:not-allowed;}

/* ============================================================
   HEADER
   ============================================================ */
.topbar{background:var(--navy-950);color:#cfe4f0;font-size:.85rem;}
.topbar-inner{display:flex;justify-content:space-between;align-items:center;padding:8px 20px;gap:16px;flex-wrap:wrap;}
.topbar-contact{display:flex;gap:20px;}
.topbar-contact a:hover{color:#fff;}
.topbar-address{color:#9fb7c6;}
@media (max-width:760px){ .topbar{display:none;} }

.site-header{position:sticky;top:0;z-index:100;background:#fff;border-bottom:1px solid var(--line);}
.mainbar-inner{display:flex;align-items:center;gap:20px;padding-block:10px;}
.brand{display:flex;align-items:center;gap:12px;margin-right:auto;}
.brand-logo{width:48px;height:auto;flex-shrink:0;}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text strong{font-family:var(--font-head);font-size:1.2rem;letter-spacing:.02em;color:var(--navy-950);}
.brand-text small{font-size:.66rem;color:var(--steel-600);font-weight:600;letter-spacing:.03em;}

.nav{display:flex;gap:26px;}
.nav a{font-weight:600;font-size:.95rem;color:var(--navy-950);padding:6px 0;border-bottom:2px solid transparent;}
.nav a:hover{border-color:var(--blue-500);color:var(--blue-600);}

.header-actions{display:flex;align-items:center;gap:10px;}
.hamburger{display:none;width:40px;height:40px;border:1px solid var(--line);background:#fff;border-radius:var(--r-sm);position:relative;}
.hamburger span,.hamburger span::before,.hamburger span::after{content:"";position:absolute;left:9px;right:9px;height:2px;background:var(--navy-950);transition:transform .2s ease, opacity .2s ease;}
.hamburger span{top:19px;}
.hamburger span::before{top:-7px;}
.hamburger span::after{top:7px;}
body.nav-open .hamburger span{background:transparent;}
body.nav-open .hamburger span::before{transform:translateY(7px) rotate(45deg);}
body.nav-open .hamburger span::after{transform:translateY(-7px) rotate(-45deg);}

@media (max-width:900px){
  .nav{position:fixed;inset:65px 0 0 0;background:#fff;flex-direction:column;gap:0;padding:8px 20px 24px;transform:translateY(-8px);opacity:0;pointer-events:none;transition:opacity .18s ease, transform .18s ease;border-bottom:1px solid var(--line);max-height:calc(100vh - 65px);overflow:auto;}
  .nav a{padding:14px 4px;border-bottom:1px solid var(--line);width:100%;}
  body.nav-open .nav{opacity:1;pointer-events:auto;transform:translateY(0);}
  .hamburger{display:block;}
  .btn-call{display:none;}
}

/* ============================================================
   HERO
   ============================================================ */
.hero{
  position:relative;
  background:
    repeating-linear-gradient(0deg, rgba(255,255,255,.05) 0 1px, transparent 1px 42px),
    repeating-linear-gradient(90deg, rgba(255,255,255,.05) 0 1px, transparent 1px 42px),
    radial-gradient(1100px 480px at 85% -10%, rgba(1,131,203,.35), transparent 60%),
    linear-gradient(160deg, var(--navy-950) 20%, var(--navy-800) 100%);
  color:#fff;
  padding:64px 0 72px;
  overflow:hidden;
}
.hero-grid{display:grid;gap:40px;position:relative;z-index:1;}
.hero-kicker{color:#8FD1F2;font-weight:600;letter-spacing:.02em;margin-bottom:14px;font-size:1rem;}
.hero h1{color:#fff;font-size:clamp(2.1rem,5.5vw,3.4rem);max-width:14ch;}
.hero-desc{color:#C9DBE6;max-width:52ch;font-size:1.05rem;}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px;}

.hero-panel{background:rgba(8,28,43,.55);border:1px solid rgba(255,255,255,.18);border-radius:var(--r-md);backdrop-filter:blur(2px);padding:22px;}
.hero-panel-head{font-family:var(--font-head);text-transform:uppercase;letter-spacing:.06em;font-size:.85rem;color:#8FD1F2;border-bottom:1px solid rgba(255,255,255,.18);padding-bottom:14px;margin-bottom:16px;}
.stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:0;}
.stat{padding:16px 14px;border-right:1px solid rgba(255,255,255,.14);border-bottom:1px solid rgba(255,255,255,.14);}
.stat:nth-child(2n){border-right:none;}
.stat:nth-last-child(-n+2){border-bottom:none;}
.stat-num{font-family:var(--font-head);font-size:2.1rem;color:#fff;}
.stat-suffix{font-family:var(--font-head);font-size:1.4rem;color:#8FD1F2;}
.stat-label{display:block;color:#A9C4D4;font-size:.8rem;margin-top:2px;}

@media (min-width:860px){
  .hero-grid{grid-template-columns:1.15fr .85fr;align-items:center;}
}

/* ============================================================
   SECTION HEADS
   ============================================================ */
.section-head{max-width:640px;margin-bottom:36px;}
.section-head h2{font-size:clamp(1.6rem,3.4vw,2.2rem);}
.section-lead{color:var(--steel-600);font-size:1.05rem;margin:0;}
.section-rule{width:64px;height:3px;background:var(--red-600);margin-bottom:18px;}

/* ============================================================
   ABOUT
   ============================================================ */
.about{background:#fff;}
.about-grid{display:grid;gap:40px;align-items:center;}
.about-media svg{width:100%;height:auto;}
.check-list{margin-top:18px;}
.check-list li{display:flex;gap:12px;padding:9px 0;border-bottom:1px dashed var(--line);}
.check-list li:last-child{border-bottom:none;}
.check-list svg{flex-shrink:0;color:var(--blue-500);margin-top:3px;}
@media (min-width:900px){ .about-grid{grid-template-columns:.85fr 1.15fr;} }

/* ============================================================
   SERVICES
   ============================================================ */
.service-grid{display:grid;gap:20px;grid-template-columns:1fr;}
@media (min-width:640px){ .service-grid{grid-template-columns:1fr 1fr;} }
@media (min-width:980px){ .service-grid{grid-template-columns:repeat(3,1fr);} }
.service-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:26px 22px;transition:border-color .15s ease;}
.service-card:hover{border-color:var(--blue-500);}
.service-card::before,.service-card::after{content:"";position:absolute;width:14px;height:14px;border:2px solid transparent;transition:border-color .15s ease;}
.service-card::before{top:-1px;left:-1px;border-top-color:var(--blue-500);border-left-color:var(--blue-500);}
.service-card::after{bottom:-1px;right:-1px;border-bottom-color:var(--blue-500);border-right-color:var(--blue-500);}
.service-card:hover::before,.service-card:hover::after{border-color:var(--blue-500);}
.service-icon{width:46px;height:46px;color:var(--blue-500);margin-bottom:16px;}
.service-card h3{font-size:1.15rem;margin-bottom:8px;}
.service-card p{color:var(--steel-600);font-size:.95rem;margin-bottom:0;}
.service-card.featured{background:var(--blue-100);border-color:var(--blue-500);}
.service-card.featured::before,.service-card.featured::after{border-color:var(--blue-500);}
.service-badge{position:absolute;top:14px;right:14px;background:var(--red-600);color:#fff;font-size:.68rem;font-weight:700;letter-spacing:.02em;padding:4px 10px;border-radius:20px;}

/* ============================================================
   PROCESS
   ============================================================ */
.process{background:var(--navy-950);color:#fff;}
.process .section-lead{color:#A9C4D4;}
.process h2{color:#fff;}
.process-list{display:grid;gap:18px;grid-template-columns:1fr;counter-reset:step;}
@media (min-width:760px){ .process-list{grid-template-columns:repeat(3,1fr);} }
@media (min-width:1080px){ .process-list{grid-template-columns:repeat(6,1fr);} }
.process-list li{counter-increment:step;border-top:2px solid var(--blue-500);padding-top:14px;}
.process-list li::before{content:counter(step,decimal-leading-zero);display:block;font-family:var(--font-head);font-size:1.6rem;color:#8FD1F2;margin-bottom:6px;}
.process-list h4{color:#fff;font-size:1rem;margin-bottom:6px;}
.process-list p{color:#A9C4D4;font-size:.88rem;margin:0;}

/* ============================================================
   PROJECTS
   ============================================================ */
.projects{background:#fff;}
.project-grid{display:grid;gap:22px;grid-template-columns:1fr;}
@media (min-width:640px){ .project-grid{grid-template-columns:1fr 1fr;} }
@media (min-width:980px){ .project-grid{grid-template-columns:repeat(3,1fr);} }
.project-card{border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;background:#fff;}
.project-media{aspect-ratio:4/3;position:relative;overflow:hidden;}
.project-media svg{width:100%;height:100%;}
.project-tag{position:absolute;top:12px;left:12px;background:rgba(8,28,43,.82);color:#fff;font-size:.72rem;font-weight:600;padding:4px 10px;border-radius:20px;letter-spacing:.02em;}
.project-body{padding:16px 18px 18px;}
.project-body h3{font-size:1.05rem;margin-bottom:4px;}
.project-body p{color:var(--steel-600);font-size:.88rem;margin:0;}

/* ============================================================
   TESTIMONIALS
   ============================================================ */
.testimonials{background:var(--blue-100);}
.testimonial-grid{display:grid;gap:20px;grid-template-columns:1fr;}
@media (min-width:860px){ .testimonial-grid{grid-template-columns:repeat(3,1fr);} }
.testimonial-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:24px;position:relative;}
.testimonial-quote{color:var(--ink-900);font-size:.98rem;margin-bottom:16px;}
.testimonial-name{font-weight:700;font-size:.92rem;}
.testimonial-role{color:var(--steel-600);font-size:.82rem;}

/* ============================================================
   NEWS
   ============================================================ */
.news{background:#fff;}
.news-grid{display:grid;gap:22px;grid-template-columns:1fr;}
@media (min-width:640px){ .news-grid{grid-template-columns:1fr 1fr;} }
@media (min-width:980px){ .news-grid{grid-template-columns:repeat(3,1fr);} }
.news-card{border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;padding:0 0 20px;display:flex;flex-direction:column;gap:10px;background:#fff;}
.news-thumb{aspect-ratio:16/10;overflow:hidden;background:var(--blue-100);}
.news-thumb img{width:100%;height:100%;object-fit:cover;display:block;}
.news-card > .news-cat,.news-card > h3,.news-card > .news-excerpt,.news-card > .news-full,.news-card > .news-meta,.news-card > .news-readmore{margin-inline:20px;}
.news-card > .news-cat{margin-top:20px;}
.news-cat{align-self:flex-start;font-size:.72rem;font-weight:700;color:var(--blue-600);background:var(--blue-100);padding:4px 10px;border-radius:20px;}
.news-card h3{font-size:1.08rem;margin:0;}
.news-excerpt{color:var(--steel-600);font-size:.92rem;margin:0;}
.news-full{color:var(--ink-900);font-size:.92rem;display:none;margin:0;}
.news-full p{margin:0 0 .8em;}
.news-full img{max-width:100%;height:auto;border-radius:var(--r-sm);margin:.4em 0;}
.news-card.expanded .news-full{display:block;}
.news-card.expanded .news-excerpt{display:none;}
.news-meta{color:var(--steel-300);font-size:.78rem;margin-top:auto;}
.news-readmore{align-self:flex-start;background:none;border:none;padding:0;color:var(--blue-600);font-weight:700;font-size:.88rem;}
.news-readmore:hover{text-decoration:underline;}
.news-empty{border:1px dashed var(--line);border-radius:var(--r-md);padding:36px;text-align:center;color:var(--steel-600);}

/* ============================================================
   CTA BANNER
   ============================================================ */
.cta-banner{background:var(--red-600);color:#fff;}
.cta-inner{display:flex;flex-wrap:wrap;gap:20px;align-items:center;justify-content:space-between;}
.cta-inner h2{color:#fff;margin-bottom:4px;}
.cta-inner p{color:#FBD9DA;margin:0;}
.cta-banner .btn-primary{background:#fff;color:var(--red-600);}
.cta-banner .btn-primary:hover{background:#FBEBEB;}

/* ============================================================
   CONTACT
   ============================================================ */
.contact{background:var(--paper);}
.contact-grid{display:grid;gap:36px;grid-template-columns:1fr;}
@media (min-width:900px){ .contact-grid{grid-template-columns:1fr 1fr;} }
.info-list li{padding:10px 0;border-bottom:1px solid var(--line);font-size:.96rem;}
.info-list a:hover{color:var(--blue-600);}
.map-wrap{margin-top:18px;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;aspect-ratio:16/10;}
.map-wrap iframe{width:100%;height:100%;border:0;}

.contact-form{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:26px;}
.contact-form h3{margin-bottom:16px;}
.contact-form label{display:block;font-size:.88rem;font-weight:600;margin-bottom:14px;color:var(--navy-950);}
.contact-form input,.contact-form textarea{width:100%;margin-top:6px;padding:11px 12px;border:1px solid var(--line);border-radius:var(--r-sm);font-size:.96rem;background:#fff;color:var(--ink-900);}
.contact-form input:focus,.contact-form textarea:focus{border-color:var(--blue-500);}
.form-note{font-size:.8rem;color:var(--steel-600);margin-top:12px;margin-bottom:0;}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer{background:var(--navy-950);color:#A9C4D4;}
.footer-grid{display:grid;gap:32px;grid-template-columns:1fr;padding-block:48px 32px;}
@media (min-width:760px){ .footer-grid{grid-template-columns:1.3fr 1fr 1fr 1.1fr;} }
.footer-logo{width:44px;margin-bottom:12px;}
.footer-brand p{margin:0 0 4px;font-size:.9rem;}
.footer-col h4{color:#fff;font-size:.95rem;margin-bottom:14px;}
.footer-col a,.footer-col p{display:block;font-size:.9rem;margin-bottom:10px;color:#A9C4D4;}
.footer-col a:hover{color:#fff;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding-block:18px;}
.footer-bottom p{margin:0;font-size:.82rem;color:#6E8898;text-align:center;}

/* ============================================================
   FLOATING ACTIONS
   ============================================================ */
.fab-stack{position:fixed;right:18px;bottom:18px;display:flex;flex-direction:column;gap:12px;z-index:90;}
.fab{width:54px;height:54px;border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-pop);color:#fff;font-weight:700;}
.fab-call{background:var(--blue-500);animation:pulse 2.4s infinite;}
.fab-zalo{background:#fff;color:#0068FF;border:2px solid #0068FF;font-size:.9rem;}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(1,131,203,.5),var(--shadow-pop);}70%{box-shadow:0 0 0 14px rgba(1,131,203,0),var(--shadow-pop);}100%{box-shadow:0 0 0 0 rgba(1,131,203,0),var(--shadow-pop);}}

/* Toast */
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);background:var(--navy-950);color:#fff;padding:13px 22px;border-radius:var(--r-sm);font-size:.9rem;z-index:300;box-shadow:var(--shadow-pop);}
.toast[hidden]{display:none;}


/* ============================================================
   BỔ SUNG CHO WORDPRESS (Loop, trang bài viết đơn, ảnh căn lề)
   ============================================================ */
.news-card h3 a{color:inherit;}
.news-card h3 a:hover{color:var(--blue-600);}
.news-readmore{display:inline-block;}

.single-hero{background:var(--navy-950);color:#fff;padding:48px 0 36px;}
.single-hero .container{max-width:760px;}
.single-cat{display:inline-block;font-size:.75rem;font-weight:700;color:#8FD1F2;background:rgba(255,255,255,.1);padding:4px 12px;border-radius:20px;margin-bottom:14px;}
.single-hero h1{color:#fff;font-size:clamp(1.6rem,4vw,2.3rem);max-width:22ch;}
.single-meta{color:#A9C4D4;font-size:.9rem;margin-top:10px;}

.single-content-wrap{max-width:760px;margin-inline:auto;padding:40px 20px 64px;}
.single-thumb{margin-bottom:28px;border-radius:var(--r-md);overflow:hidden;}
.single-thumb img{width:100%;height:auto;display:block;}
.entry-content{font-size:1.02rem;color:var(--ink-900);}
.entry-content p{margin:0 0 1.1em;}
.entry-content img{max-width:100%;height:auto;border-radius:var(--r-sm);margin:.6em 0;}
.entry-content h2,.entry-content h3{margin-top:1.4em;}
.entry-content ul,.entry-content ol{margin:0 0 1.1em;padding-left:1.4em;}
.entry-content a{color:var(--blue-600);text-decoration:underline;}
.single-back{display:inline-block;margin-top:8px;font-weight:600;color:var(--blue-600);}
.single-back:hover{text-decoration:underline;}

.alignleft{float:left;margin:.4em 1.2em 1em 0;}
.alignright{float:right;margin:.4em 0 1em 1.2em;}
.aligncenter{display:block;margin:1em auto;}
.wp-caption{max-width:100%;}
.wp-caption-text{color:var(--steel-600);font-size:.85rem;text-align:center;margin-top:6px;}

.archive-grid{display:grid;gap:22px;grid-template-columns:1fr;max-width:var(--container);margin:0 auto;padding:48px 20px;}
@media (min-width:640px){ .archive-grid{grid-template-columns:1fr 1fr;} }
@media (min-width:980px){ .archive-grid{grid-template-columns:repeat(3,1fr);} }

.posts-pagination{display:flex;justify-content:center;gap:16px;padding:0 20px 60px;max-width:var(--container);margin:0 auto;}
.posts-pagination a,.posts-pagination span{padding:9px 16px;border:1px solid var(--line);border-radius:var(--r-sm);font-weight:600;font-size:.9rem;}
.posts-pagination a:hover{border-color:var(--blue-500);color:var(--blue-600);}