/*
Theme Name: Khánh Nhôm
Theme URI: https://mainhomxep.com
Author: Khánh Nhôm
Description: Giao diện cho website mái nhôm xếp tự động Khánh Nhôm (Nghệ An – Hà Tĩnh). Nội dung trang chủ sửa trực tiếp trong trình soạn thảo, thông tin liên hệ sửa tại Giao diện > Tùy biến.
Version: 1.0.1
Requires at least: 6.0
Requires PHP: 7.4
License: GPL-2.0-or-later
Text Domain: khanh-nhom
*/
:root{
  --navy:#0b1734; --ink:#1a304c; --gold:#d4af37; --gold-d:#735608; --pale:#fddea2; --beige:#eae2d2;
  --white:#fff; --muted:#5a6678; --radius:10px; --maxw:1180px;
  --red:#d92d20; --zalo:#0068ff; --fb:#1877f2;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:78px}
body{margin:0;font-family:"Montserrat",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;color:var(--ink);background:var(--white);line-height:1.7;font-size:16px;-webkit-text-size-adjust:100%}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
h1,h2,h3{line-height:1.25;margin:0 0 .6em}
p{margin:0 0 1em}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}
section{padding:76px 0}
:focus-visible{outline:3px solid var(--gold);outline-offset:3px;border-radius:4px}

/* Section themes */
.s-navy{background:var(--navy);color:#e8ecf5}
.s-beige{background:var(--beige)}
.s-white{background:var(--white)}
.title{font-size:clamp(1.5rem,3.4vw,2.6rem);font-weight:700;text-transform:uppercase;text-align:center;letter-spacing:.01em;margin-bottom:.5em}
.s-navy .title{color:var(--pale)}
.s-beige .title,.s-white .title{color:var(--ink)}
.eyebrow{display:block;text-align:center;font-size:.78rem;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--gold-d);margin-bottom:.7rem}
.s-navy .eyebrow{color:var(--gold)}
.sub{text-align:center;max-width:780px;margin:0 auto 2.2rem;color:inherit;opacity:.92}
.s-navy .sub{color:#cdd5e6}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5em;padding:.9em 1.6em;border-radius:8px;font-weight:700;font-size:.9rem;letter-spacing:.04em;text-transform:uppercase;text-decoration:none;border:0;cursor:pointer;font-family:inherit;transition:transform .15s,background .15s,color .15s}
.btn:hover{transform:translateY(-2px)}
.btn svg{width:1.2em;height:1.2em;flex:none}
.btn-gold{background:var(--gold);color:#000}
.btn-gold:hover{background:#e3c04f}
.btn-navy{background:var(--navy);color:#fff}
.btn-navy:hover{background:#16295a}
.btn-line{background:transparent;color:#fff;box-shadow:inset 0 0 0 2px rgba(255,255,255,.55)}
.btn-line:hover{box-shadow:inset 0 0 0 2px var(--gold);color:var(--gold)}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}

/* Header */
header.site{position:sticky;top:0;z-index:60;background:#fff;box-shadow:0 1px 0 #e6e9f0}
.bar{display:flex;align-items:center;justify-content:space-between;height:70px;gap:16px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--navy);font-weight:800;letter-spacing:.02em;font-size:1.1rem;text-transform:uppercase}
.logo svg{width:38px;height:38px}
.logo small{display:block;font-size:.6rem;font-weight:600;letter-spacing:.14em;color:var(--gold-d)}
nav.main ul{display:flex;gap:18px;list-style:none;margin:0;padding:0}
nav.main a{text-decoration:none;font-size:.78rem;font-weight:600;letter-spacing:.05em;text-transform:uppercase;color:var(--ink);padding:6px 0;border-bottom:2px solid transparent}
nav.main a:hover{color:var(--gold-d);border-bottom-color:var(--gold)}
.menu-btn{display:none;background:none;border:1px solid #cfd6e4;border-radius:8px;width:42px;height:42px;cursor:pointer;color:var(--navy)}
.menu-btn svg{width:22px;height:22px;margin:auto}

/* Hero */
.hero{position:relative;min-height:calc(100vh - 70px);min-height:calc(100svh - 70px);display:grid;place-items:center;padding:60px 20px;color:var(--ink);overflow:hidden}
.hero>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero-card{position:relative;max-width:780px;width:100%;background:rgba(255,255,255,.86);border-radius:15px;padding:46px 40px;text-align:center;box-shadow:0 20px 50px rgba(0,0,0,.25)}
.hero-card .eyebrow{margin-bottom:.9rem}
.hero-card h1{font-size:clamp(1.7rem,4.4vw,3rem);font-weight:800;text-transform:uppercase;color:var(--ink);margin-bottom:.4em}
.hero-card p{font-size:1.05rem;max-width:600px;margin:0 auto 1.6rem}

/* Stats */
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin:2rem 0}
.stat{background:#fff;color:var(--ink);border-radius:var(--radius);padding:26px 18px;text-align:center;border-bottom:4px solid var(--gold)}
.stat b{display:block;font-size:1.25rem;font-weight:800;text-transform:uppercase;color:var(--navy);line-height:1.3}
.stat span{display:block;font-size:.88rem;color:var(--muted);margin-top:.4rem}
.cta-box{background:#122757;border:1px solid #27407a;border-radius:var(--radius);padding:30px;text-align:center;max-width:780px;margin:0 auto}
.cta-box h3{color:var(--pale);text-transform:uppercase;font-size:1.15rem;margin-bottom:.4em}
.cta-box p{margin-bottom:1.2rem;color:#cdd5e6}

/* Spec table */
.spec{width:100%;max-width:920px;margin:1.6rem auto 0;border-collapse:separate;border-spacing:0 6px;font-size:.95rem}
.spec th{background:var(--navy);color:#fff;text-align:left;font-weight:700;padding:14px 18px;width:30%;border-radius:8px 0 0 8px;vertical-align:top}
.spec td{background:#fff;padding:14px 18px;border-radius:0 8px 8px 0;vertical-align:top}
.spec a{color:var(--navy);font-weight:700}

/* Cards */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card-use{background:#122757;border:1px solid #27407a;border-radius:var(--radius);padding:24px 22px}
.card-use svg{width:36px;height:36px;color:var(--gold);margin-bottom:12px}
.card-use h3{color:var(--pale);font-size:1rem;text-transform:uppercase;margin-bottom:.4em}
.card-use p{font-size:.92rem;margin:0;color:#cdd5e6}

/* Feature split */
.feat-split{display:grid;grid-template-columns:.9fr 1.1fr;gap:40px;align-items:start}
.checks{list-style:none;padding:0;margin:0 0 1.4rem}
.checks li{display:flex;gap:12px;padding:12px 0;border-bottom:1px dashed rgba(26,48,76,.25)}
.checks svg{flex:none;width:22px;height:22px;color:var(--gold-d);margin-top:3px}
.photo-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.photo-grid img{width:100%;aspect-ratio:1/1;object-fit:cover;border-radius:8px;cursor:zoom-in}

/* Design block */
.design{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.design img{border-radius:var(--radius);width:100%;aspect-ratio:4/3;object-fit:cover}

/* Product lines */
.products{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.prod{background:#fff;color:var(--ink);border-radius:var(--radius);overflow:hidden;box-shadow:0 10px 30px rgba(0,0,0,.25);display:flex;flex-direction:column}
.prod img{width:100%;aspect-ratio:16/10;object-fit:cover}
.prod .b{padding:26px;display:flex;flex-direction:column;flex:1}
.prod h3{text-transform:uppercase;color:var(--navy);font-size:1.12rem}
.prod p{color:var(--muted)}
.prod ul{padding-left:1.1em;margin:.4rem 0 1.4rem}
.prod li{margin-bottom:.3em}
.prod .btn{margin-top:auto;align-self:flex-start}
.badge{display:inline-block;background:var(--gold);color:#000;font-size:.7rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;padding:.3em .9em;border-radius:999px;margin-bottom:.8rem;align-self:flex-start}

/* Glass section */
.glass-cols{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.g-card{border-radius:var(--radius);padding:28px 26px}
.g-card h3{text-transform:uppercase;font-size:1rem;margin-bottom:.8rem}
.g-card ul{margin:0;padding:0;list-style:none}
.g-card li{position:relative;padding:8px 0 8px 28px}
.g-card li::before{position:absolute;left:0;top:8px;font-weight:800}
.g-bad{background:var(--beige);color:var(--ink)}
.g-bad li::before{content:"–";color:var(--gold-d)}
.g-good{background:var(--navy);color:#e8ecf5}
.g-good h3{color:var(--pale)}
.g-good li::before{content:"✓";color:var(--gold)}
.persona{margin-top:34px;text-align:center}
.persona h3,.worry-title{text-transform:uppercase;font-size:1.05rem;color:var(--ink)}
.persona p{max-width:820px;margin:1rem auto 0;color:var(--muted)}
.tags2{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;list-style:none;padding:0;margin:0}
.tags2 li{background:var(--beige);border-radius:999px;padding:.4em 1.1em;font-size:.88rem;font-weight:600}
.worry-title{text-align:center;margin-top:2.4rem}
.worries{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:1rem}
.worry{border:1px solid #dfe4ee;border-left:4px solid var(--gold);border-radius:var(--radius);padding:18px 20px;background:#fff}
.worry b{display:block;color:var(--navy);margin-bottom:.3em}
.worry p{margin:0;font-size:.92rem;color:var(--muted)}
.pgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:26px}
.pgrid figure{margin:0;border-radius:var(--radius);overflow:hidden;aspect-ratio:4/3;cursor:zoom-in;background:#cfc7b5}
.pgrid img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.pgrid figure:hover img{transform:scale(1.05)}

/* Warranty + Price */
.warranty{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:2rem}
.w-card{background:var(--navy);color:#cdd5e6;border-radius:var(--radius);padding:28px 22px;text-align:center;border-bottom:4px solid var(--gold)}
.w-card b{display:block;font-size:2rem;font-weight:800;color:var(--pale);line-height:1.1;margin-bottom:.4rem}
.w-card h3{color:#fff;text-transform:uppercase;font-size:1rem;margin-bottom:.4em}
.w-card p{margin:0;font-size:.92rem}
.price{text-align:center}
.price .big{font-size:clamp(1.6rem,4vw,2.6rem);font-weight:800;color:var(--navy);text-transform:uppercase;margin-bottom:.3em}
.price .big em{font-style:normal;color:var(--gold-d)}
.price .box{background:var(--navy);color:#fff;border-radius:var(--radius);max-width:640px;margin:1.6rem auto 0;padding:28px;text-align:left}
.price .box li{padding:6px 0;list-style:none;display:flex;gap:10px}
.price .box svg{flex:none;width:20px;height:20px;color:var(--gold);margin-top:3px}
.price .box ul{margin:0 0 1.4rem;padding:0}

/* Form */
.form-wrap{max-width:900px;margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:start}
.form-wrap h3{color:var(--pale);text-transform:uppercase}
.form-wrap .checks li{border-bottom-color:rgba(255,255,255,.2)}
.form-wrap .checks svg{color:var(--gold)}
form.lead{background:#fff;color:var(--ink);border-radius:var(--radius);padding:26px;display:grid;gap:14px}
form.lead label{font-size:.78rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em}
form.lead input,form.lead select,form.lead textarea{width:100%;margin-top:6px;padding:12px 14px;border:1px solid #c6cedd;border-radius:8px;font:inherit;color:var(--ink);background:#fff}
form.lead input:focus,form.lead select:focus,form.lead textarea:focus{border-color:var(--gold-d);outline:2px solid var(--gold)}
form.lead .hp{position:absolute;left:-9999px}
.form-msg{font-size:.9rem;min-height:1.2em;margin:0}
.form-msg.ok{color:#0a7a3c;font-weight:600}
.form-msg.err{color:#b42318;font-weight:600}

/* Reasons */
.reasons{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.reason{background:#122757;border:1px solid #27407a;border-radius:var(--radius);padding:28px 24px}
.reason .n{display:grid;place-items:center;width:46px;height:46px;border-radius:50%;background:var(--gold);color:#000;font-weight:800;font-size:1.2rem;margin-bottom:14px}
.reason h3{color:var(--pale);text-transform:uppercase;font-size:1rem}
.reason p{margin:0;color:#cdd5e6;font-size:.93rem}

/* About */
.about{max-width:860px;margin:0 auto;text-align:center}
.about p{color:#cdd5e6}

/* Gallery */
.gal{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.gal figure{margin:0;position:relative;border-radius:var(--radius);overflow:hidden;cursor:zoom-in;aspect-ratio:4/5;background:#cfc7b5}
.gal img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.gal figure:hover img{transform:scale(1.05)}
.gal figcaption{position:absolute;left:0;right:0;bottom:0;padding:30px 12px 10px;color:#fff;font-size:.8rem;background:linear-gradient(transparent,rgba(11,23,52,.88))}
.gal figcaption b{display:block}
.gal .more{display:none}
.gal.open .more{display:block}
dialog#lb{border:0;padding:0;background:transparent;max-width:min(94vw,1100px);width:100%;overflow:visible}
dialog#lb::backdrop{background:rgba(5,10,25,.9)}
dialog#lb img{max-height:84vh;width:auto;margin:0 auto;border-radius:10px;max-width:100%}
dialog#lb p{color:#fff;text-align:center;margin:12px 0 0;font-size:.95rem}
dialog#lb button{position:absolute;top:-8px;right:0;background:#fff;border:0;border-radius:50%;width:38px;height:38px;font-size:22px;cursor:pointer;line-height:1}

/* FAQ */
.faq{max-width:860px;margin:0 auto}
.faq details{background:#fff;border:1px solid #dfe4ee;border-radius:var(--radius);margin-bottom:12px;padding:0 20px}
.faq summary{cursor:pointer;font-weight:700;padding:18px 0;list-style:none;display:flex;justify-content:space-between;gap:16px;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:1.6rem;color:var(--gold-d);line-height:1;flex:none}
.faq details[open] summary::after{content:"–"}
.faq p{color:var(--muted);padding-bottom:18px;margin:0}

/* Contact */
.contact{display:grid;grid-template-columns:1fr 1fr;gap:34px}
.contact ul{list-style:none;padding:0;margin:1rem 0 1.4rem}
.contact li{display:flex;gap:12px;padding:8px 0}
.contact svg{flex:none;width:22px;height:22px;color:var(--gold);margin-top:3px}
.contact a{text-decoration:none}
.map{border-radius:var(--radius);overflow:hidden;min-height:320px;background:#122757}
.map iframe{width:100%;height:100%;min-height:320px;border:0}

/* Footer */
footer{background:#07102a;color:#aab4cb;font-size:.88rem;padding:46px 0 26px}
.fcols{display:grid;grid-template-columns:1.2fr 1fr 1.2fr;gap:30px}
footer h4{color:var(--pale);text-transform:uppercase;font-size:.85rem;letter-spacing:.06em;margin:0 0 .8rem}
footer ul{list-style:none;padding:0;margin:0}
footer li{padding:3px 0}
footer a{text-decoration:none}
footer a:hover{color:var(--gold)}
.copy{border-top:1px solid #1d2c55;margin-top:30px;padding-top:18px;text-align:center;font-size:.8rem}

/* Floating buttons */
.float{position:fixed;right:14px;bottom:18px;z-index:70;display:grid;gap:10px}
.float a,.float button{width:48px;height:48px;border-radius:50%;display:grid;place-items:center;color:#fff;border:0;cursor:pointer;box-shadow:0 4px 14px rgba(0,0,0,.3);text-decoration:none;font-weight:800;font-size:.8rem;font-family:inherit}
.float svg{width:24px;height:24px}
.f-call{background:var(--red);animation:ring 2.4s infinite}
.f-zalo{background:var(--zalo)}
.f-fb{background:var(--fb)}
.f-top{background:#fff;color:var(--navy)!important;opacity:0;pointer-events:none;transition:opacity .2s}
.f-top.show{opacity:1;pointer-events:auto}
@keyframes ring{0%,100%{box-shadow:0 0 0 0 rgba(217,45,32,.55)}60%{box-shadow:0 0 0 14px rgba(217,45,32,0)}}

nav.main a{white-space:nowrap}
@media (max-width:1140px){
  nav.main{display:none;position:absolute;top:70px;left:0;right:0;background:#fff;border-bottom:1px solid #e6e9f0;padding:6px 20px 16px;box-shadow:0 12px 24px rgba(0,0,0,.08)}
  nav.main.open{display:block}
  nav.main ul{flex-direction:column;gap:0}
  nav.main a{display:block;padding:14px 0;border-bottom:1px solid #eef0f5}
  .menu-btn{display:grid}
}
@media (max-width:1000px){
  section{padding:56px 0}
  .grid3{grid-template-columns:repeat(2,1fr)}
  .reasons{grid-template-columns:1fr 1fr}
  .gal{grid-template-columns:repeat(2,1fr)}
  .feat-split,.design,.products,.form-wrap,.contact,.fcols,.glass-cols{grid-template-columns:1fr}
  .pgrid{grid-template-columns:repeat(2,1fr)}
  .worries{grid-template-columns:1fr}
  nav.main{display:none;position:absolute;top:70px;left:0;right:0;background:#fff;border-bottom:1px solid #e6e9f0;padding:6px 20px 16px;box-shadow:0 12px 24px rgba(0,0,0,.08)}
  nav.main.open{display:block}
  nav.main ul{flex-direction:column;gap:0}
  nav.main a{display:block;padding:14px 0;border-bottom:1px solid #eef0f5}
  .menu-btn{display:grid}
}
@media (max-width:640px){
  body{font-size:15px}
  .hero-card{padding:30px 20px}
  .stats{grid-template-columns:1fr}
  .grid3,.reasons,.warranty{grid-template-columns:1fr}
  .gal{gap:8px}
  .gal figcaption{font-size:.7rem;padding:22px 8px 8px}
  .spec th{width:38%;padding:12px}
  .spec td{padding:12px}
  .float{right:10px;bottom:12px}
  .float a,.float button{width:44px;height:44px}
  footer{padding-bottom:30px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important;scroll-behavior:auto!important}}

/* ===== Bổ sung cho WordPress ===== */
.pt0{padding-top:0}
.faq{margin-top:2rem}
.screen-reader-text{border:0;clip:rect(1px,1px,1px,1px);clip-path:inset(50%);height:1px;margin:-1px;overflow:hidden;padding:0;position:absolute;width:1px;word-wrap:normal!important}
body.admin-bar header.site{top:32px}
@media (max-width:782px){body.admin-bar header.site{top:46px}}
.wp-block-details summary{margin:0}
.wp-block-group.wrap{max-width:var(--maxw)}

/* Trang trong, bài viết, tin tức */
.page-head{background:var(--navy);color:#fff;padding:54px 0 46px;text-align:center}
.page-head h1{font-size:clamp(1.6rem,3.6vw,2.4rem);text-transform:uppercase;color:var(--pale);margin:0}
.page-head p{margin:.6rem 0 0;color:#cdd5e6}
.knm-main{padding:56px 0 80px}
.posts{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{background:#fff;border:1px solid #dfe4ee;border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column}
.post-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.post-card .b{padding:20px;display:flex;flex-direction:column;flex:1}
.post-card h2{font-size:1.1rem;margin:0 0 .5em}
.post-card h2 a{text-decoration:none;color:var(--navy)}
.post-card h2 a:hover{color:var(--gold-d)}
.post-card .meta{font-size:.8rem;color:var(--muted);margin-bottom:.5rem}
.post-card p{color:var(--muted);font-size:.93rem}
.post-card .more-link{margin-top:auto;font-weight:700;color:var(--gold-d);text-decoration:none;font-size:.82rem;text-transform:uppercase;letter-spacing:.05em}
.navigation.pagination{margin-top:2.4rem;text-align:center}
.navigation.pagination .nav-links{display:flex;gap:8px;justify-content:center;flex-wrap:wrap}
.navigation.pagination a,.navigation.pagination span{display:inline-block;padding:.5em 1em;border:1px solid #dfe4ee;border-radius:8px;text-decoration:none;font-weight:600}
.navigation.pagination .current{background:var(--navy);color:#fff;border-color:var(--navy)}
.entry{max-width:780px;margin:0 auto}
.entry-thumb{margin-bottom:1.6rem}
.entry-thumb img{width:100%;border-radius:var(--radius)}
.entry-content{font-size:1.02rem}
.entry-content h2{font-size:1.5rem;color:var(--navy);margin-top:1.8em}
.entry-content h3{font-size:1.2rem;color:var(--navy);margin-top:1.5em}
.entry-content a{color:var(--gold-d);font-weight:600}
.entry-content ul,.entry-content ol{padding-left:1.3em;margin:0 0 1em}
.entry-content li{margin-bottom:.3em}
.entry-content img{border-radius:var(--radius)}
.entry-content figure{margin:1.4em 0}
.entry-content figcaption{font-size:.85rem;color:var(--muted);text-align:center;margin-top:.4em}
.entry-content table{width:100%;border-collapse:collapse;margin:1.2em 0;font-size:.95rem}
.entry-content th,.entry-content td{border:1px solid #dfe4ee;padding:10px 12px;text-align:left}
.entry-content th{background:var(--beige)}
.entry-content blockquote{border-left:4px solid var(--gold);margin:1.4em 0;padding:.4em 1.2em;background:var(--beige);border-radius:0 var(--radius) var(--radius) 0}
.cta-post{margin-top:2.8rem;background:var(--navy);border-color:var(--navy)}
@media (max-width:1000px){.posts{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.posts{grid-template-columns:1fr}.knm-main{padding:40px 0 60px}}