:root{
  --color-primary:#1bac91;
  --color-primary-dark:#21413c;
  --color-primary-light:#22d8b6;
  --color-text:#444444;
  --color-bg-light:#f2f9f8;
  --color-black:#000000;
  --font-body:'Open Sans', sans-serif;
  --font-heading:'Raleway', sans-serif;
}
*{box-sizing:border-box;}
body{margin:0;font-family:var(--font-body);color:var(--color-text);line-height:1.7;-webkit-font-smoothing:antialiased;}
img{max-width:100%;}
a{color:var(--color-primary);text-decoration:underline dotted;text-underline-offset:2px;}
a:hover{color:var(--color-primary-light);}
h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);color:var(--color-primary-dark);margin:0 0 .6em;}
.container{max-width:1200px;margin:0 auto;padding:0 20px;}
.container--narrow{max-width:820px;}

/* ---- header ---- */
.site-header{background:#fff;border-bottom:1px solid #eee;position:relative;z-index:10;}
.header-inner{max-width:1200px;margin:0 auto;padding:14px 20px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;}
.site-logo{display:flex;align-items:center;}
.site-logo img{height:64px;width:auto;}
.main-nav{display:flex;gap:1.75rem;list-style:none;margin:0;padding:0;}
.main-nav__item{list-style:none;}
.main-nav__link{font-family:var(--font-heading);font-size:14px;font-weight:600;letter-spacing:1px;text-transform:uppercase;color:var(--color-primary-dark);text-decoration:none;padding:4px 0;border-bottom:2px solid transparent;}
.main-nav__link:hover,.main-nav__link.active{color:var(--color-primary);border-bottom-color:var(--color-primary);}
.nav-toggle{display:none;}
.nav-burger{display:none;}

@media (max-width:768px){
  .nav-burger{display:flex;flex-direction:column;gap:5px;cursor:pointer;order:2;padding:8px;}
  .nav-burger span{width:24px;height:2px;background:var(--color-primary-dark);display:block;}
  .main-nav{flex-basis:100%;order:3;flex-direction:column;gap:0;max-height:0;overflow:hidden;transition:max-height .3s ease;}
  .nav-toggle:checked ~ .main-nav{max-height:400px;}
  .main-nav__item{border-top:1px solid #eee;}
  .main-nav__link{display:block;padding:12px 0;}
}

/* ---- hero ---- */
.hero{position:relative;min-height:70vh;display:flex;align-items:center;overflow:hidden;}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0;}
.hero-overlay{position:absolute;inset:0;background:rgba(0,0,0,.45);z-index:1;}
.hero-content{position:relative;z-index:2;padding:60px 20px;}
.hero-content h1{color:#fff;font-size:48px;font-weight:700;line-height:1.2;max-width:760px;margin-bottom:.4em;}
.hero-baseline{color:rgba(255,255,255,.8);font-size:22px;font-family:var(--font-heading);max-width:640px;margin:0;}
@media (max-width:768px){
  .hero{min-height:50vh;}
  .hero-content h1{font-size:28px;}
  .hero-baseline{font-size:17px;}
}

/* ---- intro / content ---- */
.intro-section{background:var(--color-bg-light);padding:60px 0;}
.intro-content h2{font-size:28px;font-weight:600;color:var(--color-primary-dark);margin-top:1.4em;}
.intro-content h2:first-child{margin-top:0;}
.intro-content p{font-size:16px;line-height:1.8;}
.intro-content ul,.intro-content ol{font-size:16px;line-height:1.8;}

/* ---- showcase / cards ---- */
.articles-section{padding:60px 0;}
.section-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:32px;}
.section-head h2{margin:0;}
.articles-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
@media (max-width:900px){.articles-grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width:600px){.articles-grid{grid-template-columns:1fr;}}
.post-card{background:#fff;border-radius:4px;box-shadow:0 0 6px 1px rgba(33,65,60,.12);overflow:hidden;transition:box-shadow .2s ease;}
.post-card:hover{box-shadow:0 0 14px 2px rgba(33,65,60,.2);}
.post-card__link{color:inherit;text-decoration:none;display:block;}
.post-card__img{width:100%;height:190px;object-fit:cover;display:block;}
.post-card__body{padding:20px;}
.post-card__meta{font-size:12px;color:var(--color-primary);text-transform:uppercase;letter-spacing:1px;margin-bottom:8px;}
.post-card__title{font-size:19px;line-height:1.3;margin-bottom:10px;color:var(--color-primary-dark);}
.post-card__excerpt{font-size:14px;color:var(--color-text);margin:0;}

/* ---- pagination ---- */
.pagination{display:flex;gap:8px;justify-content:center;margin-top:40px;list-style:none;padding:0;}
.pagination a,.pagination span{display:inline-flex;min-width:36px;height:36px;align-items:center;justify-content:center;border-radius:4px;color:var(--color-primary-dark);text-decoration:none;font-weight:600;}
.pagination .active{background:var(--color-primary);color:#fff;}

/* ---- post detail ---- */
.list-hero,.post-hero{background:var(--color-bg-light);padding:50px 0 30px;}
.list-hero h1,.post-hero h1{font-size:34px;margin-top:.4em;}
.post-meta{color:#777;font-size:13px;display:flex;gap:16px;text-transform:uppercase;letter-spacing:.5px;flex-wrap:wrap;}
.post-body{padding:50px 0;}
.post-body__img{width:100%;height:auto;border-radius:4px;margin-bottom:32px;display:block;}
.post-content h2{font-size:26px;margin-top:1.6em;}
.post-content p{font-size:16px;line-height:1.85;}
.related-section{background:var(--color-bg-light);padding:60px 0;}

/* ---- footer ---- */
.site-footer{background:var(--color-black);color:#fff;padding:26px 0;font-size:14px;}
.site-footer a{color:#fff;}