/*
Theme Name: AquaBird
Theme URI: https://aquabird.com.vn/
Author: AquaBird
Description: Theme riêng cho AquaBird — wiki tra cứu cá cảnh và chim cảnh.
Version: 1.0
Requires PHP: 8.0
Text Domain: aquabird
*/

:root{
  --c-bg:#f6fafb;
  --c-surface:#ffffff;
  --c-text:#13262b;
  --c-text-muted:#5b7278;
  --c-border:#e2eef0;
  --c-primary:#0e7490;
  --c-primary-dark:#0b4a57;
  --c-accent:#d97706;
  --c-chip-bg:#eef7f9;
  --radius:14px;
  --maxw:1120px;
  font-size:16px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--c-bg);
  color:var(--c-text);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  line-height:1.65;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--c-primary);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}

/* header */
.site-header{background:var(--c-surface);border-bottom:1px solid var(--c-border);position:sticky;top:0;z-index:20}
.site-header__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 0}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;color:var(--c-text)}
.brand img{width:36px;height:36px;border-radius:9px}
.brand span{color:var(--c-primary)}
.main-nav ul{list-style:none;display:flex;gap:22px;margin:0;padding:0;flex-wrap:wrap}
.main-nav a{color:var(--c-text);font-weight:600;font-size:15px}
.main-nav a:hover{color:var(--c-primary);text-decoration:none}

/* footer */
.site-footer{background:var(--c-primary-dark);color:#e8f4f6;margin-top:60px}
.site-footer .wrap{padding:36px 20px 28px;display:flex;flex-wrap:wrap;gap:24px;justify-content:space-between}
.site-footer a{color:#bfe6ec}
.site-footer small{color:#9cc4cb}
.footer-links{list-style:none;display:flex;gap:18px;flex-wrap:wrap;margin:0;padding:0}

/* hero */
.hero{padding:40px 0 10px}
.hero h1{font-size:clamp(28px,4vw,42px);margin:0 0 14px;font-weight:900;letter-spacing:-.01em}
.hero__lede{font-size:18px;color:var(--c-text-muted);max-width:760px;margin:0 0 26px}

/* tool */
.tool{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius);padding:20px;margin-bottom:34px}
.tool__row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:14px}
.tool__search{flex:1 1 220px;padding:11px 14px;border:1px solid var(--c-border);border-radius:10px;font-size:15px}
.chipgroup{display:flex;flex-wrap:wrap;gap:8px}
.chip{border:1px solid var(--c-border);background:var(--c-chip-bg);color:var(--c-text);border-radius:999px;padding:7px 14px;font-size:14px;font-weight:600;cursor:pointer}
.chip[aria-pressed="true"]{background:var(--c-primary);border-color:var(--c-primary);color:#fff}
.tool__meta{color:var(--c-text-muted);font-size:14px;margin-top:4px}

/* grid */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px;margin-bottom:10px}
.card{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius);padding:16px;display:flex;flex-direction:column;gap:6px}
.card__icon{width:40px;height:40px;color:var(--c-primary)}
.card__name{font-weight:800;font-size:16px;margin:4px 0 0}
.card__sci{font-style:italic;color:var(--c-text-muted);font-size:13px}
.card__tags{display:flex;gap:6px;flex-wrap:wrap;margin:6px 0}
.tag{font-size:12px;font-weight:700;padding:3px 9px;border-radius:999px;background:var(--c-chip-bg);color:var(--c-primary-dark)}
.tag--kho{background:#fef2f2;color:#b91c1c}
.tag--trungbinh{background:#fffbeb;color:#92400e}
.tag--de{background:#ecfdf5;color:#065f46}
.card__note{font-size:13px;color:var(--c-text-muted)}
.card__size{font-size:13px;color:var(--c-text)}
.empty-state{padding:30px;text-align:center;color:var(--c-text-muted);display:none}

/* sections */
.section{padding:30px 0}
.section h2{font-size:24px;margin:0 0 14px}
.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}
.feature-card{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius);padding:20px}
.feature-card h3{margin:0 0 8px;font-size:17px}
.feature-card p{margin:0;color:var(--c-text-muted);font-size:14px}

/* page content */
.page-content{padding:36px 0 50px}
.page-content h1{font-size:clamp(26px,3.6vw,36px);margin:0 0 14px}
.page-content img{border-radius:var(--radius)}
.page-content table{width:100%;border-collapse:collapse;margin:16px 0}
.page-content th,.page-content td{border:1px solid var(--c-border);padding:9px 12px;text-align:left;font-size:14px}
.page-content th{background:var(--c-chip-bg)}

@media (max-width:640px){
  .main-nav ul{gap:12px;font-size:14px}
  .site-header__inner{flex-direction:column;align-items:flex-start}
}