/* Meu Chimarrão — Erva-Mate Encyclopedia */

/* --- Custom Properties --- */
:root {
  --c-primary: #1B5E20;
  --c-secondary: #2E7D32;
  --c-accent: #4CAF50;
  --c-dark: #0D2818;
  --c-light: #F1F8E9;
  --c-white: #FAFFFE;
  --c-text: #1A1A1A;
  --c-text-muted: #555;
  --c-border: #C8E6C9;
  --c-surface: #fff;
  --c-code-bg: #E8F5E9;
  --c-shadow: rgba(27,94,32,.12);
  --ff: system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --ff-mono: ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,monospace;
  --fs-base: 1rem;
  --lh: 1.6;
  --radius: .5rem;
  --radius-lg: 1rem;
  --transition: .2s ease;
  --max-w: 1200px;
  --header-h: 64px;
}

/* ---------- Dark Mode ---------- */
@media(prefers-color-scheme:dark){
  :root{
    --c-surface: #122A1C;
    --c-white: #0D2818;
    --c-text: #E8F5E9;
    --c-text-muted: #A5D6A7;
    --c-border: #1B5E20;
    --c-code-bg: #0D2818;
    --c-shadow: rgba(0,0,0,.3);
    --c-light: #132E1E;
  }
}

/* ---------- Reset / Base ---------- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:100%;scroll-behavior:smooth;-webkit-text-size-adjust:100%;scroll-padding-top:calc(var(--header-h) + 1rem)}
body{font-family:var(--ff);font-size:var(--fs-base);line-height:var(--lh);color:var(--c-text);background:var(--c-white);-webkit-font-smoothing:antialiased}
img,picture,video,svg{display:block;max-width:100%}
a{color:var(--c-secondary);text-decoration:none;transition:color var(--transition)}
a:hover,a:focus-visible{color:var(--c-accent)}
ul,ol{list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:3px solid var(--c-accent);outline-offset:2px}

/* ---------- Utilities ---------- */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}
.container{width:min(var(--max-w),100% - 2rem);margin-inline:auto}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:100;background:var(--c-primary);color:#fff;height:var(--header-h);display:flex;align-items:center;box-shadow:0 2px 8px var(--c-shadow)}
.site-header .container{display:flex;align-items:center;justify-content:space-between;width:100%}
.site-logo{font-size:1.25rem;font-weight:700;color:#fff;letter-spacing:.02em;display:flex;align-items:center;gap:.5rem}
.site-logo:hover{color:var(--c-light)}
.site-logo img{height:36px;width:auto}

/* ---------- Navigation ---------- */
.nav-menu{display:flex;align-items:center;gap:.25rem}
.nav-menu a{color:rgba(255,255,255,.9);padding:.625rem .875rem;border-radius:var(--radius);min-height:44px;min-width:44px;display:inline-flex;align-items:center;transition:background var(--transition),color var(--transition)}
.nav-menu a:hover,.nav-menu a:focus-visible,.nav-menu a[aria-current="page"]{background:rgba(255,255,255,.15);color:#fff}
.nav-toggle{display:none;background:none;border:none;color:#fff;cursor:pointer;min-height:44px;min-width:44px;align-items:center;justify-content:center;border-radius:var(--radius)}
.nav-toggle span{display:block;width:22px;height:2px;background:#fff;position:relative;transition:transform var(--transition)}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:100%;height:2px;background:#fff;transition:transform var(--transition)}
.nav-toggle span::before{top:-7px}
.nav-toggle span::after{top:7px}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{transform:rotate(45deg) translate(5px,5px)}
.nav-toggle[aria-expanded="true"] span::after{transform:rotate(-45deg) translate(5px,-5px)}

/* ---------- Breadcrumbs ---------- */
.breadcrumbs{padding:.75rem 0;font-size:.875rem;color:var(--c-text-muted)}
.breadcrumbs ol{display:flex;flex-wrap:wrap;gap:.25rem;align-items:center}
.breadcrumbs li+li::before{content:"/";margin-right:.25rem;color:var(--c-border)}
.breadcrumbs a{color:var(--c-secondary)}
.breadcrumbs [aria-current]{color:var(--c-text);font-weight:500}

/* ---------- Hero ---------- */
.hero{background:linear-gradient(135deg,var(--c-dark) 0%,var(--c-primary) 60%,var(--c-secondary) 100%);color:#fff;padding:4rem 1rem;text-align:center}
.hero h1{font-size:clamp(2rem,5vw,3.25rem);font-weight:800;margin-bottom:.75rem;letter-spacing:-.02em}
.hero p{font-size:clamp(1rem,2.5vw,1.25rem);max-width:640px;margin-inline:auto;opacity:.9;margin-bottom:2rem}
.hero-stats{display:flex;flex-wrap:wrap;justify-content:center;gap:2rem 3rem}
.hero-stat{text-align:center}
.hero-stat strong{display:block;font-size:clamp(1.75rem,4vw,2.5rem);font-weight:800;color:var(--c-accent)}
.hero-stat span{font-size:.875rem;opacity:.85;text-transform:uppercase;letter-spacing:.06em}

/* ---------- Cards Grid ---------- */
.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.5rem;padding:1.5rem 0}
.card{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius-lg);overflow:hidden;transition:transform var(--transition),box-shadow var(--transition)}
.card:hover{transform:translateY(-4px);box-shadow:0 8px 24px var(--c-shadow)}
.card img{width:100%;height:200px;object-fit:cover}
.card-body{padding:1.25rem}
.card-body h3{font-size:1.125rem;margin-bottom:.5rem;color:var(--c-primary)}
.card-body p{font-size:.9375rem;color:var(--c-text-muted)}
.card-footer{padding:.75rem 1.25rem;border-top:1px solid var(--c-border);display:flex;align-items:center;justify-content:space-between;font-size:.8125rem;color:var(--c-text-muted)}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.625rem 1.25rem;border:2px solid transparent;border-radius:var(--radius);font-weight:600;font-size:.9375rem;cursor:pointer;min-height:44px;min-width:44px;transition:background var(--transition),color var(--transition),transform var(--transition),box-shadow var(--transition);text-align:center}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--c-primary);color:#fff;border-color:var(--c-primary)}
.btn-primary:hover{background:var(--c-secondary);border-color:var(--c-secondary);color:#fff}
.btn-secondary{background:transparent;color:var(--c-primary);border-color:var(--c-primary)}
.btn-secondary:hover{background:var(--c-primary);color:#fff}

/* ---------- Table of Contents ---------- */
.toc{background:var(--c-light);border:1px solid var(--c-border);border-radius:var(--radius-lg);padding:1.25rem 1.5rem;margin-bottom:2rem}
.toc h2,.toc summary{font-size:1rem;font-weight:700;margin-bottom:.75rem;color:var(--c-primary)}
.toc ol{counter-reset:toc;padding-left:1rem}
.toc li{counter-increment:toc;margin-bottom:.375rem}
.toc li::before{content:counters(toc,".") ". ";color:var(--c-accent);font-weight:600}
.toc a{color:var(--c-text)}
.toc a:hover{color:var(--c-accent)}

/* ---------- Article / Prose ---------- */
.prose{max-width:72ch;margin-inline:auto}
.prose>*+*{margin-top:1.25rem}
.prose h1{font-size:2rem;font-weight:800;letter-spacing:-.02em;color:var(--c-primary)}
.prose h2{font-size:1.5rem;font-weight:700;color:var(--c-primary);padding-bottom:.5rem;border-bottom:2px solid var(--c-border)}
.prose h3{font-size:1.25rem;font-weight:700;color:var(--c-secondary)}
.prose h4{font-size:1.0625rem;font-weight:600;color:var(--c-secondary)}
.prose p{color:var(--c-text)}
.prose ul,.prose ol{padding-left:1.5rem}
.prose ul{list-style:disc}
.prose ol{list-style:decimal}
.prose li+li{margin-top:.375rem}
.prose strong{font-weight:700}
.prose code{font-family:var(--ff-mono);font-size:.875em;background:var(--c-code-bg);padding:.15em .35em;border-radius:.25rem}
.prose pre{background:var(--c-dark);color:#E8F5E9;padding:1.25rem 1.5rem;border-radius:var(--radius);overflow-x:auto;font-size:.875rem;line-height:1.7}
.prose pre code{background:none;padding:0;color:inherit}
.prose blockquote{border-left:4px solid var(--c-accent);padding:.75rem 1.25rem;background:var(--c-light);border-radius:0 var(--radius) var(--radius) 0;color:var(--c-text-muted);font-style:italic}
.prose table{width:100%;border-collapse:collapse;font-size:.9375rem}
.prose thead{background:var(--c-primary);color:#fff}
.prose th,.prose td{padding:.625rem .875rem;text-align:left;border:1px solid var(--c-border)}
.prose tbody tr:nth-child(even){background:var(--c-light)}
.prose img{border-radius:var(--radius);margin-block:1rem}

/* ---------- Badges / Tags ---------- */
.badge{display:inline-flex;align-items:center;padding:.25rem .625rem;font-size:.75rem;font-weight:600;border-radius:9999px;line-height:1.4;letter-spacing:.02em;white-space:nowrap}
.badge-green{background:#C8E6C9;color:#1B5E20}
.badge-dark{background:var(--c-dark);color:#A5D6A7}
.badge-outline{background:transparent;border:1.5px solid var(--c-secondary);color:var(--c-secondary)}
.tag-list{display:flex;flex-wrap:wrap;gap:.5rem}

/* ---------- FAQ Accordion ---------- */
.faq-list{max-width:72ch;margin-inline:auto}
.faq-item{border-bottom:1px solid var(--c-border)}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;padding:1rem 0;font-weight:600;cursor:pointer;min-height:44px;list-style:none;color:var(--c-text);transition:color var(--transition)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:1.25rem;color:var(--c-accent);transition:transform var(--transition);flex-shrink:0;margin-left:1rem}
.faq-item[open] summary::after{content:"\2212"}
.faq-item summary:hover{color:var(--c-accent)}
.faq-item .faq-body{padding:0 0 1.25rem;color:var(--c-text-muted);line-height:var(--lh)}

/* ---------- Glossary Grid ---------- */
.glossary-nav{display:flex;flex-wrap:wrap;gap:.375rem;margin-bottom:1.5rem}
.glossary-nav a{min-width:44px;min-height:44px;display:inline-flex;align-items:center;justify-content:center;border-radius:var(--radius);font-weight:700;color:var(--c-primary);border:1px solid var(--c-border);transition:background var(--transition),color var(--transition)}
.glossary-nav a:hover,.glossary-nav a:focus-visible{background:var(--c-primary);color:#fff}
.glossary-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1rem}
.glossary-card{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius);padding:1rem 1.25rem;transition:box-shadow var(--transition)}
.glossary-card:hover{box-shadow:0 4px 16px var(--c-shadow)}
.glossary-card dt{font-weight:700;color:var(--c-primary);margin-bottom:.25rem}
.glossary-card dd{font-size:.9375rem;color:var(--c-text-muted)}

/* ---------- Search Page ---------- */
.search-form{display:flex;gap:.5rem;max-width:640px;margin:0 auto 2rem}
.search-input{flex:1;padding:.625rem 1rem;border:2px solid var(--c-border);border-radius:var(--radius);font-size:1rem;min-height:44px;background:var(--c-surface);transition:border-color var(--transition)}
.search-input:focus{border-color:var(--c-accent);outline:none}
.search-results{max-width:720px;margin-inline:auto}
.search-result{padding:1.25rem 0;border-bottom:1px solid var(--c-border)}
.search-result h3{font-size:1.125rem;margin-bottom:.25rem}
.search-result h3 a{color:var(--c-primary)}
.search-result h3 a:hover{color:var(--c-accent)}
.search-result p{font-size:.9375rem;color:var(--c-text-muted)}
.search-result mark{background:#FFF9C4;color:var(--c-text);padding:.05em .15em;border-radius:.15rem}
.search-meta{font-size:.8125rem;color:var(--c-text-muted);margin-bottom:1.5rem}

/* ---------- Footer ---------- */
.site-footer{background:var(--c-dark);color:rgba(255,255,255,.8);padding:3.5rem 1rem 1.5rem;margin-top:4rem}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:2rem;max-width:var(--max-w);margin-inline:auto;padding-bottom:2.5rem;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-grid h4{color:#fff;font-size:.9375rem;margin-bottom:1rem;letter-spacing:.03em;text-transform:uppercase;font-weight:700}
.footer-grid a{color:rgba(255,255,255,.7);display:block;padding:.3rem 0;min-height:44px;display:flex;align-items:center;transition:color var(--transition)}
.footer-grid a:hover{color:var(--c-accent)}
.footer-grid p{font-size:.875rem;line-height:1.7;color:rgba(255,255,255,.6)}
.footer-bottom{text-align:center;padding-top:1.5rem;font-size:.8125rem;color:rgba(255,255,255,.45);max-width:var(--max-w);margin-inline:auto}

/* ---------- Scroll-to-Top ---------- */
.scroll-top{position:fixed;bottom:1.5rem;right:1.5rem;min-width:44px;min-height:44px;border-radius:50%;background:var(--c-primary);color:#fff;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 12px var(--c-shadow);opacity:0;pointer-events:none;transition:opacity var(--transition),transform var(--transition);z-index:90}
.scroll-top.visible{opacity:1;pointer-events:auto}
.scroll-top:hover{background:var(--c-secondary);transform:translateY(-2px)}
.scroll-top svg{width:20px;height:20px}

/* ---------- Main Content ---------- */
main{min-height:60vh;padding:2rem 1rem}

/* ---------- Section Spacing ---------- */
.section{padding:3rem 0}
.section-title{font-size:clamp(1.5rem,3vw,2rem);font-weight:800;text-align:center;color:var(--c-primary);margin-bottom:.5rem}
.section-subtitle{text-align:center;color:var(--c-text-muted);max-width:560px;margin:0 auto 2rem;font-size:1.0625rem}

/* ========================================================================
   Responsive Breakpoints
   ======================================================================== */

/* 320px — small phones */
@media(max-width:374px){
  :root{--fs-base:.9375rem}
  .hero{padding:2.5rem .75rem}
  .hero-stats{gap:1rem 1.5rem}
  .footer-grid{grid-template-columns:1fr}
}

/* 375px — standard phones */
@media(max-width:767px){
  .nav-toggle{display:inline-flex}
  .nav-menu{position:fixed;top:var(--header-h);left:0;right:0;background:var(--c-primary);flex-direction:column;padding:1rem;gap:0;transform:translateY(-110%);transition:transform .3s ease;box-shadow:0 4px 12px var(--c-shadow);z-index:99}
  .nav-menu.open{transform:translateY(0)}
  .nav-menu a{width:100%;justify-content:flex-start;padding:.75rem 1rem;border-radius:var(--radius)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:1.5rem}
  .hero-stats{gap:1.25rem 2rem}
}

/* 768px — tablets */
@media(min-width:768px){
  main{padding:2.5rem 1.5rem}
  .hero{padding:5rem 2rem}
}

/* 1024px — small desktop */
@media(min-width:1024px){
  .card-grid{gap:2rem}
  .hero{padding:6rem 2rem}
}

/* 1440px — large desktop */
@media(min-width:1440px){
  :root{--max-w:1320px}
  .hero{padding:7rem 2rem}
}

/* ---------- Print ---------- */
@media print{
  .site-header,.site-footer,.scroll-top,.nav-toggle,.breadcrumbs{display:none}
  body{color:#000;background:#fff}
  main{padding:0}
  .prose pre{white-space:pre-wrap;border:1px solid #ccc}
}