/*
Theme Name: AmazingUX
Theme URI: https://amazingux.vn/
Author: AmazingUX
Description: Theme riêng cho AmazingUX — công cụ bảng màu và kiến thức UX/UI.
Version: 1.0
Requires PHP: 8.0
Text Domain: amazingux
*/

:root{
  --c-bg:#f7f7fb;
  --c-surface:#ffffff;
  --c-text:#1e1b2e;
  --c-text-muted:#5e5a72;
  --c-border:#e4e1f0;
  --c-primary:#6d28d9;
  --c-primary-dark:#4c1d95;
  --c-accent:#0ea5e9;
  --c-chip-bg:#f1edfb;
  --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}
code,.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}

.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}

.site-footer{background:var(--c-primary-dark);color:#e9e3fb}
.site-footer .wrap{padding:36px 20px 28px;display:flex;flex-wrap:wrap;gap:24px;justify-content:space-between}
.site-footer a{color:#cabdf5}
.site-footer small{color:#a899dd}
.footer-links{list-style:none;display:flex;gap:18px;flex-wrap:wrap;margin:0;padding:0}

.hero{padding:40px 0 10px}
.hero h1{font-size:clamp(26px,3.8vw,40px);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{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius);padding:22px;margin-bottom:28px}
.tool__row{display:flex;flex-wrap:wrap;gap:14px;align-items:flex-end;margin-bottom:16px}
.tool__field label{display:block;font-size:13px;font-weight:700;color:var(--c-text-muted);margin-bottom:6px}
.tool__field input[type=text]{padding:10px 12px;border:1px solid var(--c-border);border-radius:9px;font-size:15px;font-family:ui-monospace,monospace;width:140px}
.tool__field input[type=color]{width:52px;height:42px;border:1px solid var(--c-border);border-radius:9px;padding:2px;cursor:pointer}
.codes{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px;margin-bottom:10px}
.code-chip{background:var(--c-chip-bg);border:1px solid var(--c-border);border-radius:10px;padding:10px 12px;display:flex;justify-content:space-between;align-items:center;gap:8px;cursor:pointer}
.code-chip span{font-family:ui-monospace,monospace;font-size:14px}
.code-chip small{color:var(--c-text-muted);font-size:11px;text-transform:uppercase;letter-spacing:.04em}
.contrast-box{display:flex;gap:10px;align-items:center;padding:12px;border-radius:10px;border:1px solid var(--c-border);margin-top:6px}
.contrast-badge{font-weight:800;padding:4px 10px;border-radius:999px;font-size:13px}
.contrast-badge.pass{background:#dcfce7;color:#166534}
.contrast-badge.fail{background:#fee2e2;color:#991b1b}

.pgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px;margin-bottom:10px}
.pal{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius);overflow:hidden}
.pal__swatches{display:flex;height:70px}
.pal__swatches span{flex:1}
.pal__meta{padding:12px 14px;display:flex;justify-content:space-between;align-items:center}
.pal__name{font-weight:700;font-size:14px}
.pal__tag{font-size:11px;font-weight:700;padding:3px 9px;border-radius:999px;background:var(--c-chip-bg);color:var(--c-primary-dark)}

.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}

.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{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}
}