/* =========================================================
   Khang Tran IPS — main.css
   Clone phong cách hunghuynh.vn (xanh navy, chữ trắng, nhấn vàng + nút đỏ)
   Đổi màu nhanh: sửa các biến trong :root bên dưới.
   ========================================================= */

:root{
  --navy:        #0a1f44;   /* nền chính */
  --navy-2:      #0d264f;   /* nền section phụ */
  --navy-3:      #081a3a;   /* nền đậm (footer dưới) */
  --gold:        #e6b94d;   /* nhấn vàng (sứ mệnh) */
  --red:         #d8352c;   /* nút XEM THÊM */
  --red-dark:    #b62920;
  --white:       #ffffff;
  --muted:       #c4cfe3;   /* chữ phụ */
  --line:        rgba(255,255,255,.14);
  --card:        #0f2a57;
  --maxw:        1180px;
  --radius:      6px;
  --font-head:   'Oswald', 'Be Vietnam Pro', sans-serif;
  --font-body:   'Be Vietnam Pro', system-ui, sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-body);
  background:var(--navy);
  color:var(--white);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.wrap-narrow{max-width:820px;margin:0 auto;padding:0 24px}

/* ===== Hiệu ứng reveal ===== */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* =========================================================
   HEADER / NAV
   ========================================================= */
.site-header{
  position:sticky;top:0;z-index:50;
  background:var(--navy);
  border-bottom:1px solid var(--line);
  transition:background .3s ease, box-shadow .3s ease;
}
.site-header.scrolled{background:rgba(8,20,44,.92);backdrop-filter:blur(8px);box-shadow:0 6px 24px rgba(0,0,0,.35)}
.nav-row{display:flex;align-items:center;gap:22px;min-height:74px}

.brand{font-family:var(--font-head);font-weight:700;font-size:1.55rem;letter-spacing:.5px;font-style:italic;white-space:nowrap}
.brand .brand-main{color:var(--white)}
.brand .brand-tld{color:var(--gold)}
.brand .custom-logo{max-height:46px;width:auto}

.nav-search{flex:1;max-width:360px;display:flex;align-items:center;border-bottom:1px solid var(--line)}
.nav-search input{
  flex:1;background:transparent;border:0;color:var(--white);
  font-family:var(--font-body);font-size:.95rem;padding:8px 6px;outline:none;
}
.nav-search input::placeholder{color:var(--muted)}
.nav-search button{background:transparent;border:0;color:var(--muted);cursor:pointer;font-size:1rem;padding:6px}

.nav-menu{display:flex;align-items:center;gap:26px;margin-left:auto}
.nav-menu a{
  font-family:var(--font-head);font-weight:500;text-transform:uppercase;
  font-size:.92rem;letter-spacing:.6px;color:var(--white);padding:6px 0;
  position:relative;transition:color .2s ease;
}
.nav-menu a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--gold);transition:width .25s ease}
.nav-menu a:hover{color:var(--gold)}
.nav-menu a:hover::after{width:100%}

.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px;margin-left:auto}
.nav-toggle span{width:26px;height:2px;background:var(--white);transition:.3s}

/* =========================================================
   HERO
   ========================================================= */
.hero{
  position:relative;min-height:88vh;display:flex;align-items:center;justify-content:center;
  background-size:cover;background-position:center;text-align:center;overflow:hidden;
}
.hero-overlay{
  position:absolute;inset:0;
  background:
    linear-gradient(180deg, rgba(8,20,44,.55) 0%, rgba(8,20,44,.45) 45%, rgba(10,31,68,.96) 100%),
    rgba(8,20,44,.35);
}
.hero-inner{position:relative;z-index:2;padding:60px 24px}
.hero-name{
  font-family:var(--font-head);font-weight:700;letter-spacing:6px;
  font-size:clamp(2.6rem,8vw,5.2rem);margin:0;text-transform:uppercase;
  text-shadow:0 4px 30px rgba(0,0,0,.5);
}
.hero-tagline{
  margin:18px auto 0;max-width:780px;color:var(--muted);
  font-size:clamp(.95rem,1.6vw,1.15rem);letter-spacing:1px;text-transform:uppercase;font-weight:500;
}
.hero-dots{position:absolute;right:26px;top:50%;transform:translateY(-50%);z-index:3;display:flex;flex-direction:column;gap:14px}
.hero-dots span{width:11px;height:11px;border-radius:50%;background:rgba(255,255,255,.4)}
.hero-dots span:first-child{background:var(--gold)}

/* =========================================================
   DẢI KẾT NỐI
   ========================================================= */
.connect-band{background:linear-gradient(180deg,var(--navy) 0%,var(--navy-2) 100%);padding:54px 0;text-align:center}
.connect-band h2{
  font-family:var(--font-head);font-weight:600;text-transform:uppercase;letter-spacing:2px;
  font-size:clamp(1.4rem,3.4vw,2.1rem);margin:0;
}

/* =========================================================
   GIỚI THIỆU
   ========================================================= */
.about{background:var(--navy-2);padding:30px 0 80px}
.about-grid{display:grid;grid-template-columns:380px 1fr;gap:54px;align-items:center}
.about-photo img{
  width:100%;border-radius:8px;box-shadow:0 20px 50px rgba(0,0,0,.45);
  aspect-ratio:3/4;object-fit:cover;background:#0c1f44;
}
.about-role{font-family:var(--font-head);font-weight:700;text-transform:uppercase;font-size:clamp(1.3rem,2.6vw,1.7rem);margin:0 0 6px}
.about-name{font-family:var(--font-head);font-weight:600;font-size:1.25rem;color:var(--gold);margin:0 0 22px}
.about-list{list-style:none;margin:0;padding:0}
.about-list li{position:relative;padding:0 0 14px 26px;color:var(--muted);font-size:1.02rem}
.about-list li::before{content:"";position:absolute;left:4px;top:11px;width:8px;height:8px;border-radius:50%;background:var(--gold)}
.about-list li:last-child{padding-bottom:0}

/* =========================================================
   SỨ MỆNH
   ========================================================= */
.mission{background:var(--navy);padding:78px 0;text-align:center;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.mission-title{font-family:var(--font-head);font-weight:600;letter-spacing:2px;text-transform:uppercase;font-size:1.15rem;color:var(--white);margin:0 0 26px}
.mission-quote{
  max-width:980px;margin:0 auto;color:var(--gold);
  font-family:var(--font-head);font-weight:600;text-transform:uppercase;
  font-size:clamp(1.2rem,2.8vw,1.9rem);line-height:1.45;letter-spacing:.5px;
}

/* =========================================================
   BLOG
   ========================================================= */
.blog{background:var(--navy-2);padding:74px 0}
.section-head{
  text-align:center;font-family:var(--font-head);font-weight:700;text-transform:uppercase;
  letter-spacing:2px;font-size:clamp(1.5rem,3.4vw,2.1rem);margin:0 0 46px;
}
.blog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}
.blog-card{background:var(--card);border-radius:8px;overflow:hidden;border:1px solid var(--line);transition:transform .3s ease,box-shadow .3s ease}
.blog-card:hover{transform:translateY(-6px);box-shadow:0 18px 40px rgba(0,0,0,.4)}
.blog-cover{position:relative;display:block;aspect-ratio:16/10;background:#0a1c3e;overflow:hidden}
.blog-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.blog-card:hover .blog-cover img{transform:scale(1.06)}
.blog-date{
  position:absolute;top:14px;left:14px;background:var(--navy);border:1px solid var(--gold);
  border-radius:4px;padding:5px 9px;text-align:center;line-height:1;font-family:var(--font-head);
}
.blog-date strong{display:block;font-size:1.15rem;color:var(--white)}
.blog-date em{font-style:normal;font-size:.72rem;color:var(--gold);text-transform:uppercase}
.blog-body{padding:18px 20px 24px}
.blog-body h3{font-family:var(--font-head);font-weight:600;font-size:1.08rem;line-height:1.35;margin:0 0 10px}
.blog-body h3 a:hover{color:var(--gold)}
.blog-body p{margin:0;color:var(--muted);font-size:.95rem}

/* Huy hiệu GHIM trên thẻ bài được đưa lên đầu */
.pin-badge{
  position:absolute;top:14px;right:14px;background:var(--gold);color:var(--navy);
  font-family:var(--font-head);font-weight:700;font-size:.72rem;letter-spacing:.5px;
  padding:5px 10px;border-radius:4px;text-transform:uppercase;box-shadow:0 4px 12px rgba(0,0,0,.32);
}
.blog-card.is-pinned{border-color:var(--gold)}

/* =========================================================
   NGƯỜI TÔI NGƯỠNG MỘ (tái dùng bố cục .blog)
   ========================================================= */
.admire{background:var(--navy)}
.admire-sub{text-align:center;color:var(--muted);max-width:680px;margin:-34px auto 42px;font-size:1rem}
.admire-link{
  display:inline-block;margin-top:14px;color:var(--gold);font-family:var(--font-head);
  font-weight:600;font-size:.92rem;letter-spacing:.4px;border-bottom:1px solid transparent;
  transition:border-color .2s ease;
}
.admire-link:hover{border-color:var(--gold)}
.admire-cta{text-align:center;margin:34px 0 8px}

.blog-more{text-align:center;margin-top:48px}
.btn-more{
  display:inline-block;background:var(--red);color:var(--white);
  font-family:var(--font-head);font-weight:600;text-transform:uppercase;letter-spacing:1px;
  padding:14px 38px;border-radius:4px;transition:background .25s ease,transform .2s ease;
}
.btn-more:hover{background:var(--red-dark);transform:translateY(-2px)}

/* =========================================================
   VÀ CÒN NHIỀU HƠN NỮA
   ========================================================= */
.more-band{
  background:linear-gradient(180deg,var(--navy-2) 0%,var(--navy-3) 100%);
  padding:80px 0;text-align:center;
}
.more-band h2{font-family:var(--font-head);font-weight:600;font-size:clamp(1.4rem,3vw,2rem);margin:0;letter-spacing:1px}

/* =========================================================
   FOOTER
   ========================================================= */
.site-footer{background:var(--navy-3);padding:64px 0 0;border-top:1px solid var(--line)}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr .9fr;gap:46px}
.footer-logo{font-size:1.7rem;margin-bottom:14px}
.footer-brand h4,.footer-contact h4{font-family:var(--font-head);font-weight:600;text-transform:uppercase;letter-spacing:1px;font-size:1.02rem;margin:0 0 16px}
.footer-bio{list-style:none;margin:0;padding:0}
.footer-bio li{position:relative;padding:0 0 10px 18px;color:var(--muted);font-size:.92rem}
.footer-bio li::before{content:"•";position:absolute;left:0;color:var(--gold)}
.footer-contact p{margin:0 0 14px;color:var(--muted);font-size:.95rem}
.footer-contact a:hover{color:var(--gold)}
.footer-contact .ic{display:inline-block;width:24px}

.footer-socials{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}
.soc{
  display:inline-flex;align-items:center;justify-content:center;
  padding:9px 14px;border-radius:30px;font-size:.85rem;font-weight:600;
  background:rgba(255,255,255,.08);border:1px solid var(--line);transition:transform .2s ease,background .2s ease;
}
.soc:hover{transform:translateY(-2px)}
.soc-tt:hover{background:#000}
.soc-yt:hover{background:#ff0000}
.soc-fb:hover{background:#1877f2}
.soc-za:hover{background:#0068ff}

.fb-card{background:#fff;color:#1c1e21;border-radius:8px;padding:16px;max-width:300px}
.fb-head{font-weight:600;font-size:.95rem;margin-bottom:12px}
.fb-follow{display:inline-block;background:#1877f2;color:#fff;font-size:.85rem;font-weight:600;padding:7px 14px;border-radius:5px}

.footer-bottom{margin-top:54px;border-top:1px solid var(--line);padding:20px 0}
.footer-bottom span{color:var(--muted);font-size:.85rem}

/* ===== Nút lên đầu trang ===== */
.to-top{
  position:fixed;right:22px;bottom:22px;z-index:60;width:46px;height:46px;border-radius:50%;
  background:var(--red);color:#fff;border:0;font-size:1.2rem;cursor:pointer;opacity:0;pointer-events:none;
  transition:opacity .3s ease,transform .2s ease;box-shadow:0 8px 20px rgba(0,0,0,.4);
}
.to-top.show{opacity:1;pointer-events:auto}
.to-top:hover{transform:translateY(-3px)}

/* =========================================================
   BÀI VIẾT / ARCHIVE
   ========================================================= */
.single-post{padding:60px 0 80px;background:var(--navy)}
.single-head{margin-bottom:26px}
.single-meta{color:var(--gold);font-family:var(--font-head);text-transform:uppercase;letter-spacing:1px;font-size:.85rem;margin-bottom:12px}
.single-cat{color:var(--gold)}
.single-head h1{font-family:var(--font-head);font-weight:700;font-size:clamp(1.8rem,4vw,2.7rem);line-height:1.2;margin:0}
.single-thumb{margin:0 0 30px;border-radius:8px;overflow:hidden}
.single-content{font-size:1.08rem;color:#e7edf8}
.single-content p{margin:0 0 20px}
.single-content h2{font-family:var(--font-head);font-weight:600;font-size:1.6rem;margin:36px 0 14px;color:var(--white)}
.single-content h3{font-family:var(--font-head);font-weight:600;font-size:1.3rem;margin:28px 0 12px;color:var(--gold)}
.single-content ul,.single-content ol{margin:0 0 20px;padding-left:24px}
.single-content li{margin-bottom:8px;color:#d8e1f2}
.single-content blockquote{margin:24px 0;padding:14px 22px;border-left:4px solid var(--gold);background:rgba(255,255,255,.05);color:var(--muted);font-style:italic}
.single-content a{color:var(--gold);text-decoration:underline}
.single-content img{border-radius:8px;margin:18px 0}
.single-foot{margin-top:40px;padding-top:24px;border-top:1px solid var(--line)}

.archive-page{padding-top:60px}
.no-post{color:var(--muted);text-align:center;grid-column:1/-1}
.pagination{display:flex;justify-content:center;gap:8px;margin-top:46px;flex-wrap:wrap}
.pagination .page-numbers{padding:8px 14px;border:1px solid var(--line);border-radius:4px;color:var(--white);font-family:var(--font-head)}
.pagination .current{background:var(--gold);color:var(--navy);border-color:var(--gold)}
.pagination a:hover{border-color:var(--gold);color:var(--gold)}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width:980px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .footer-fb{grid-column:1/-1}
}
@media (max-width:880px){
  .nav-search{display:none}
  .nav-toggle{display:flex}
  .nav-menu{
    position:absolute;top:74px;left:0;right:0;flex-direction:column;align-items:flex-start;gap:0;
    background:var(--navy);border-bottom:1px solid var(--line);
    max-height:0;overflow:hidden;transition:max-height .35s ease;margin-left:0;
  }
  .nav-menu.open{max-height:420px}
  .nav-menu a{width:100%;padding:14px 24px;border-top:1px solid var(--line)}
  .nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav-toggle.open span:nth-child(2){opacity:0}
  .nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

  .about-grid{grid-template-columns:1fr;gap:32px}
  .about-photo{max-width:340px;margin:0 auto}
  .blog-grid{grid-template-columns:1fr 1fr;gap:22px}
  .hero{min-height:78vh}
  .hero-dots{display:none}
}
@media (max-width:560px){
  .blog-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .nav-row{min-height:64px}
  .nav-menu{top:64px}
}

/* =========================================================
   TRANG BLOG — danh sách bài (trái) + thanh bên (phải)
   Bố cục 2 cột giống hunghuynh.vn/blog, giữ tông navy của theme.
   ========================================================= */
.blog-listing{background:var(--navy-2);padding:60px 0 80px}
.blog-layout{display:grid;grid-template-columns:1fr 320px;gap:44px;align-items:start}

/* --- Cột trái: danh sách bài --- */
.blog-main{min-width:0}
.blog-listing-title{
  font-family:var(--font-head);font-weight:700;text-transform:uppercase;letter-spacing:1px;
  font-size:clamp(1.4rem,3vw,2rem);margin:0 0 30px;padding-bottom:16px;border-bottom:1px solid var(--line);
}
.post-row{
  display:grid;grid-template-columns:300px 1fr;gap:26px;align-items:center;
  padding-bottom:34px;margin-bottom:34px;border-bottom:1px solid var(--line);
}
.post-row:last-of-type{border-bottom:0}
.post-thumb{
  position:relative;display:block;aspect-ratio:16/10;border-radius:8px;overflow:hidden;
  background:#0a1c3e;border:1px solid var(--line);
}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.post-row:hover .post-thumb img{transform:scale(1.06)}
.post-info{text-align:center}
.post-info h2{font-family:var(--font-head);font-weight:600;font-size:1.3rem;line-height:1.35;margin:0 0 12px}
.post-info h2 a:hover{color:var(--gold)}
.post-info p{margin:0 0 14px;color:var(--muted);font-size:.97rem}
.post-readmore{color:var(--gold);font-weight:600;font-size:.92rem}
.post-readmore:hover{text-decoration:underline}
.no-post{color:var(--muted);padding:30px 0}

/* --- Cột phải: thanh bên --- */
.blog-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:30px}
.side-search{display:flex;border-radius:6px;overflow:hidden;background:var(--card);border:1px solid var(--line)}
.side-search input{
  flex:1;min-width:0;background:transparent;border:0;color:var(--white);
  padding:12px 14px;font-family:var(--font-body);font-size:.95rem;
}
.side-search input::placeholder{color:var(--muted)}
.side-search input:focus{outline:none}
.side-search button{border:0;background:var(--gold);color:var(--navy);padding:0 16px;cursor:pointer;font-size:1rem}
.side-search button:hover{background:#d9a838}
.side-widget{background:var(--card);border:1px solid var(--line);border-radius:8px;padding:20px}
.side-title{
  font-family:var(--font-head);font-weight:700;text-transform:uppercase;letter-spacing:1px;
  font-size:1.05rem;margin:0 0 18px;padding-bottom:12px;border-bottom:2px solid var(--gold);
}
.side-posts{list-style:none;margin:0;padding:0}
.side-post{display:flex;gap:12px;align-items:center;padding:12px 0;border-bottom:1px solid var(--line)}
.side-post:last-child{border-bottom:0;padding-bottom:0}
.side-post:first-child{padding-top:0}
.side-thumb{flex:0 0 64px;width:64px;height:64px;border-radius:6px;overflow:hidden;background:#0a1c3e;display:block}
.side-thumb img{width:100%;height:100%;object-fit:cover}
.side-thumb-ph{
  width:100%;height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;
  line-height:1;font-family:var(--font-head);border:1px solid var(--gold);border-radius:6px;
}
.side-thumb-ph strong{font-size:1.05rem;color:var(--white)}
.side-thumb-ph em{font-style:normal;font-size:.62rem;color:var(--gold);text-transform:uppercase}
.side-link{font-family:var(--font-head);font-weight:500;font-size:.95rem;line-height:1.35;color:var(--white)}
.side-link:hover{color:var(--gold)}

/* --- Phân trang dạng nút tròn (giống hunghuynh.vn) --- */
.blog-listing .pagination{margin-top:54px}
.pagination .nav-links{display:flex;justify-content:center;gap:10px;flex-wrap:wrap}
.pagination .page-numbers{
  display:inline-flex;align-items:center;justify-content:center;min-width:46px;height:46px;
  padding:0 8px;border-radius:50%;border:1px solid var(--line);color:var(--white);
  font-family:var(--font-head);font-size:1rem;line-height:1;
}
.pagination .page-numbers.current{background:var(--gold);color:var(--navy);border-color:var(--gold)}
.pagination a.page-numbers:hover{border-color:var(--gold);color:var(--gold)}
.pagination .page-numbers.dots{border-color:transparent}

@media (max-width:900px){
  .blog-layout{grid-template-columns:1fr;gap:48px}
  .blog-side{position:static}
}
@media (max-width:560px){
  .post-row{grid-template-columns:1fr;gap:16px}
  .post-thumb{max-width:360px;margin:0 auto;width:100%}
}