/* ===== RESET & BASE ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;line-height:1.7;color:#2d3748;background:#fff}
img{max-width:100%;height:auto;display:block}
a{color:#2b6cb0;text-decoration:none;transition:color .2s}
a:hover{color:#e67e22}
ul,ol{list-style:none}

/* ===== CSS VARIABLES ===== */
:root{
  --primary:#1a365d;
  --primary-light:#2b6cb0;
  --accent:#e67e22;
  --accent-dark:#d35400;
  --text:#2d3748;
  --text-light:#718096;
  --bg-light:#f7fafc;
  --bg-gray:#edf2f7;
  --white:#fff;
  --shadow:0 2px 8px rgba(0,0,0,.08);
  --shadow-lg:0 8px 30px rgba(0,0,0,.12);
  --radius:8px;
  --max-w:1200px;
}

/* ===== SALE BANNER ===== */
.sale-banner{
  background:linear-gradient(135deg,var(--accent),var(--accent-dark));
  color:#fff;
  text-align:center;
  padding:10px 20px;
  font-size:15px;
  font-weight:600;
  position:sticky;
  top:0;
  z-index:1000;
  display:flex;
  align-items:center;
  justify-content:center;
  gap:15px;
  flex-wrap:wrap;
}
.sale-banner span{letter-spacing:.5px}
.sale-banner form{display:inline}
.sale-banner button{
  background:#fff;
  color:var(--accent-dark);
  border:none;
  padding:6px 20px;
  border-radius:30px;
  font-weight:700;
  font-size:14px;
  cursor:pointer;
  transition:transform .2s,box-shadow .2s;
}
.sale-banner button:hover{
  transform:scale(1.05);
  box-shadow:0 4px 12px rgba(0,0,0,.2);
}

/* ===== HEADER / NAV ===== */
.site-header{
  background:var(--white);
  box-shadow:var(--shadow);
  position:sticky;
  top:42px;
  z-index:999;
}
.nav-container{
  max-width:var(--max-w);
  margin:0 auto;
  padding:0 20px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:65px;
}
.logo{
  font-size:22px;
  font-weight:800;
  color:var(--primary);
  letter-spacing:-.5px;
}
.logo em{font-style:normal;color:var(--accent)}
.nav-toggle{
  display:none;
  background:none;
  border:none;
  font-size:26px;
  cursor:pointer;
  color:var(--primary);
  padding:5px;
}
.nav-menu{display:flex;gap:30px;align-items:center}
.nav-menu a{
  color:var(--text);
  font-weight:500;
  font-size:15px;
  position:relative;
  padding:5px 0;
}
.nav-menu a::after{
  content:'';
  position:absolute;
  bottom:0;left:0;
  width:0;height:2px;
  background:var(--accent);
  transition:width .3s;
}
.nav-menu a:hover::after,
.nav-menu a.active::after{width:100%}
.nav-menu a:hover{color:var(--primary)}

/* ===== HERO ===== */
.hero{
  position:relative;
  min-height:500px;
  display:flex;
  align-items:center;
  overflow:hidden;
}
.hero-bg{
  position:absolute;
  inset:0;
  z-index:0;
}
.hero-bg img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.hero-overlay{
  position:absolute;
  inset:0;
  background:linear-gradient(135deg,rgba(26,54,93,.85),rgba(43,108,176,.6));
  z-index:1;
}
.hero-content{
  position:relative;
  z-index:2;
  max-width:var(--max-w);
  margin:0 auto;
  padding:60px 20px;
  color:#fff;
}
.hero h1{
  font-size:clamp(28px,5vw,48px);
  font-weight:800;
  line-height:1.2;
  margin-bottom:16px;
}
.hero p{
  font-size:clamp(16px,2.5vw,20px);
  max-width:600px;
  opacity:.9;
  margin-bottom:30px;
}
.btn{
  display:inline-block;
  padding:12px 30px;
  border-radius:30px;
  font-weight:700;
  font-size:15px;
  transition:transform .2s,box-shadow .2s;
}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{
  background:var(--accent-dark);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:var(--shadow-lg);
}
.btn-outline{
  border:2px solid #fff;
  color:#fff;
  margin-left:12px;
}
.btn-outline:hover{
  background:#fff;
  color:var(--primary);
}

/* ===== SECTIONS ===== */
.section{padding:70px 20px}
.section-alt{background:var(--bg-light)}
.container{max-width:var(--max-w);margin:0 auto}
.section-title{
  font-size:clamp(24px,4vw,36px);
  font-weight:800;
  color:var(--primary);
  text-align:center;
  margin-bottom:12px;
}
.section-subtitle{
  text-align:center;
  color:var(--text-light);
  font-size:17px;
  max-width:600px;
  margin:0 auto 40px;
}

/* ===== CARDS GRID ===== */
.cards{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
  gap:30px;
}
.card{
  background:var(--white);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow);
  transition:transform .3s,box-shadow .3s;
}
.card:hover{
  transform:translateY(-5px);
  box-shadow:var(--shadow-lg);
}
.card-img{
  aspect-ratio:4/3;
  overflow:hidden;
}
.card-img img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .4s;
}
.card:hover .card-img img{transform:scale(1.05)}
.card-body{padding:24px}
.card-body h3{
  font-size:20px;
  color:var(--primary);
  margin-bottom:10px;
  font-weight:700;
}
.card-body p{
  color:var(--text-light);
  font-size:15px;
  margin-bottom:15px;
}
.card-link{
  color:var(--accent);
  font-weight:600;
  font-size:14px;
}
.card-link:hover{color:var(--accent-dark)}

/* ===== FEATURE ROW ===== */
.feature-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:50px;
  align-items:center;
  margin-bottom:60px;
}
.feature-row:last-child{margin-bottom:0}
.feature-row.reverse{direction:rtl}
.feature-row.reverse>*{direction:ltr}
.feature-img{border-radius:var(--radius);overflow:hidden}
.feature-img img{
  width:100%;
  height:auto;
  object-fit:cover;
  border-radius:var(--radius);
}
.feature-text h2{
  font-size:28px;
  color:var(--primary);
  margin-bottom:14px;
  font-weight:700;
}
.feature-text p{
  color:var(--text-light);
  margin-bottom:16px;
  font-size:16px;
}
.feature-list{margin-top:10px}
.feature-list li{
  padding:6px 0 6px 28px;
  position:relative;
  color:var(--text);
  font-size:15px;
}
.feature-list li::before{
  content:'\2713';
  position:absolute;
  left:0;
  color:var(--accent);
  font-weight:700;
}

/* ===== PANORAMA BANNER ===== */
.panorama{
  position:relative;
  height:300px;
  overflow:hidden;
}
.panorama img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.panorama-overlay{
  position:absolute;
  inset:0;
  background:linear-gradient(to bottom,rgba(26,54,93,.7),rgba(26,54,93,.4));
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  color:#fff;
  padding:20px;
}
.panorama-overlay h2{
  font-size:clamp(22px,4vw,34px);
  font-weight:700;
}

/* ===== BLOG LIST ===== */
.blog-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(320px,1fr));
  gap:30px;
}
.blog-card{
  background:var(--white);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow);
  transition:transform .3s,box-shadow .3s;
}
.blog-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-lg);
}
.blog-card .card-img{aspect-ratio:16/9}
.blog-card .card-body{padding:24px}
.blog-meta{
  display:flex;
  gap:15px;
  font-size:13px;
  color:var(--text-light);
  margin-bottom:10px;
}
.blog-card h3{
  font-size:20px;
  color:var(--primary);
  margin-bottom:10px;
  line-height:1.4;
}
.blog-card h3 a{color:inherit}
.blog-card h3 a:hover{color:var(--accent)}

/* ===== ARTICLE ===== */
.article-header{
  text-align:center;
  padding:50px 20px 30px;
  background:var(--bg-light);
}
.article-header h1{
  font-size:clamp(26px,4vw,40px);
  color:var(--primary);
  font-weight:800;
  max-width:800px;
  margin:0 auto 12px;
  line-height:1.3;
}
.article-meta{
  color:var(--text-light);
  font-size:14px;
}
.article-hero{
  max-width:900px;
  margin:0 auto;
  padding:0 20px;
}
.article-hero img{
  width:100%;
  border-radius:var(--radius);
  margin-top:30px;
}
.article-content{
  max-width:780px;
  margin:0 auto;
  padding:40px 20px 60px;
}
.article-content h2{
  font-size:26px;
  color:var(--primary);
  margin:40px 0 16px;
  font-weight:700;
}
.article-content h3{
  font-size:20px;
  color:var(--primary-light);
  margin:30px 0 12px;
  font-weight:600;
}
.article-content p{
  margin-bottom:18px;
  font-size:16.5px;
  color:var(--text);
}
.article-content ul,.article-content ol{
  margin:0 0 18px 24px;
  list-style:disc;
}
.article-content ol{list-style:decimal}
.article-content li{
  margin-bottom:8px;
  font-size:16px;
  color:var(--text);
}
.article-content blockquote{
  border-left:4px solid var(--accent);
  padding:16px 24px;
  margin:24px 0;
  background:var(--bg-light);
  border-radius:0 var(--radius) var(--radius) 0;
  font-style:italic;
  color:var(--text-light);
}

/* ===== BREADCRUMBS ===== */
.breadcrumbs{
  padding:14px 20px;
  background:var(--bg-gray);
  font-size:13px;
}
.breadcrumbs .container{
  display:flex;
  gap:8px;
  flex-wrap:wrap;
}
.breadcrumbs a{color:var(--primary-light)}
.breadcrumbs span{color:var(--text-light)}

/* ===== CONTACT ===== */
.contact-info{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
  gap:30px;
  margin-top:40px;
}
.contact-card{
  background:var(--white);
  padding:30px;
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  text-align:center;
}
.contact-icon{
  font-size:36px;
  margin-bottom:14px;
}
.contact-card h3{
  font-size:18px;
  color:var(--primary);
  margin-bottom:8px;
}
.contact-card p,.contact-card a{
  color:var(--text-light);
  font-size:15px;
}

/* ===== FOOTER ===== */
.site-footer{
  background:var(--primary);
  color:rgba(255,255,255,.8);
  padding:50px 20px 20px;
}
.footer-grid{
  max-width:var(--max-w);
  margin:0 auto;
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
  gap:30px;
  margin-bottom:30px;
}
.footer-col h4{
  color:#fff;
  font-size:16px;
  margin-bottom:16px;
  font-weight:700;
}
.footer-col p{font-size:14px;line-height:1.6}
.footer-col a{
  color:rgba(255,255,255,.7);
  font-size:14px;
  display:block;
  padding:4px 0;
  transition:color .2s;
}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{
  max-width:var(--max-w);
  margin:0 auto;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.15);
  text-align:center;
  font-size:13px;
}

/* ===== DISCLAIMER ===== */
.disclaimer{
  font-size:12px;
  color:#888;
  text-align:center;
  padding:10px 0;
  border-top:1px solid #eee;
  margin-top:20px;
}

/* ===== CTA SECTION ===== */
.cta-section{
  background:linear-gradient(135deg,var(--primary),var(--primary-light));
  color:#fff;
  text-align:center;
  padding:60px 20px;
}
.cta-section h2{
  font-size:clamp(24px,4vw,34px);
  font-weight:700;
  margin-bottom:14px;
}
.cta-section p{
  opacity:.85;
  max-width:500px;
  margin:0 auto 25px;
  font-size:17px;
}

/* ===== RESPONSIVE ===== */
@media(max-width:768px){
  .nav-toggle{display:block}
  .nav-menu{
    display:none;
    position:absolute;
    top:65px;left:0;right:0;
    background:var(--white);
    flex-direction:column;
    padding:20px;
    gap:15px;
    box-shadow:var(--shadow-lg);
  }
  .nav-menu.open{display:flex}
  .hero{min-height:400px}
  .feature-row{grid-template-columns:1fr;gap:30px}
  .feature-row.reverse{direction:ltr}
  .panorama{height:200px}
  .blog-grid{grid-template-columns:1fr}
  .sale-banner{font-size:13px;padding:8px 12px;gap:8px}
  .sale-banner button{padding:5px 14px;font-size:13px}
  .site-header{top:38px}
}
@media(max-width:480px){
  .hero-content{padding:40px 16px}
  .section{padding:50px 16px}
  .btn{padding:10px 22px;font-size:14px}
  .btn-outline{margin-left:0;margin-top:10px}
  .hero .btn-group{display:flex;flex-direction:column;gap:10px}
}