/*
Theme Name: Kakobuy Spreadsheet
Theme URI: https://sheetcn.com/
Author: SheetCN
Author URI: https://sheetcn.com/
Description: A light, colorful, SEO-focused one-page theme for Kakobuy Spreadsheet content. Includes category dropdown, Guide dropdown, 8 product category cards, a 1500-word homepage buying guide, 6 auto-created Guide articles with internal links, Schema.org JSON-LD, Open Graph and canonical tags.
Version: 1.0.0
Requires at least: 5.8
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: kakobuy
Tags: one-column, custom-menu, featured-images, blog, e-commerce
*/

:root{
  --bg:#fbfaff;
  --ink:#1f2340;
  --ink-soft:#4d5375;
  --muted:#7a809c;
  --line:#e8e6f5;
  --card:#ffffff;
  --coral:#ff6f61;
  --pink:#ff8fb8;
  --violet:#7c5cff;
  --sky:#4cb8ff;
  --mint:#21c7a8;
  --sun:#ffc94d;
  --radius:18px;
  --shadow:0 10px 30px rgba(76,64,160,.10);
  --shadow-lg:0 18px 50px rgba(76,64,160,.18);
  --wrap:1180px;
  --font:"Poppins","Segoe UI",system-ui,-apple-system,Roboto,Helvetica,Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font);font-size:17px;line-height:1.75;color:var(--ink);
  background:
    radial-gradient(900px 500px at 0% 0%,#ffe9f1 0%,transparent 60%),
    radial-gradient(800px 500px at 100% 10%,#e6f4ff 0%,transparent 60%),
    radial-gradient(900px 600px at 50% 100%,#eafff7 0%,transparent 60%),
    var(--bg);
  background-attachment:fixed;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--violet);text-decoration:none;transition:color .2s}
a:hover{color:var(--coral)}
h1,h2,h3,h4{line-height:1.25;color:var(--ink);margin:0 0 .6em;font-weight:700}
h1{font-size:clamp(2rem,4.6vw,3.4rem);letter-spacing:-.02em}
h2{font-size:clamp(1.5rem,3vw,2.2rem);letter-spacing:-.01em}
h3{font-size:1.25rem}
p{margin:0 0 1.1em}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px}
.screen-reader-text{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(1px,1px,1px,1px)}
.skip-link:focus{position:fixed;top:10px;left:10px;z-index:999;background:#fff;padding:10px 16px;border-radius:8px;clip:auto;width:auto;height:auto}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:.5em;padding:.85em 1.6em;border-radius:999px;font-weight:600;font-size:1rem;line-height:1.2;border:0;cursor:pointer;transition:transform .2s,box-shadow .2s,background .2s;white-space:nowrap}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:linear-gradient(135deg,var(--coral),var(--pink));color:#fff;box-shadow:0 8px 22px rgba(255,111,97,.35)}
.btn-primary:hover{color:#fff;box-shadow:0 12px 28px rgba(255,111,97,.45)}
.btn-violet{background:linear-gradient(135deg,var(--violet),var(--sky));color:#fff;box-shadow:0 8px 22px rgba(124,92,255,.32)}
.btn-violet:hover{color:#fff}
.btn-ghost{background:#fff;color:var(--ink);border:2px solid var(--line)}
.btn-ghost:hover{border-color:var(--violet);color:var(--violet)}
.btn-sm{padding:.6em 1.15em;font-size:.9rem}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.82);backdrop-filter:saturate(180%) blur(14px);-webkit-backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:72px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.2rem;color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand-mark{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;color:#fff;font-weight:800;background:conic-gradient(from 200deg,var(--coral),var(--sun),var(--mint),var(--sky),var(--violet),var(--coral))}
.brand small{display:block;font-size:.7rem;font-weight:500;color:var(--muted);letter-spacing:.04em}
.main-nav ul{list-style:none;margin:0;padding:0}
.main-nav>ul{display:flex;align-items:center;gap:6px}
.main-nav li{position:relative}
.main-nav>ul>li>a,.main-nav>ul>li>button{display:flex;align-items:center;gap:6px;padding:10px 14px;border-radius:12px;color:var(--ink);font-weight:600;font-size:.95rem;background:none;border:0;cursor:pointer;font-family:inherit}
.main-nav>ul>li>a:hover,.main-nav>ul>li>button:hover,.main-nav li.open>button{background:#f3f0ff;color:var(--violet)}
.caret{width:9px;height:9px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg) translateY(-3px);transition:transform .2s}
.main-nav li.open .caret,.main-nav li.has-drop:hover .caret{transform:rotate(225deg) translateY(-1px)}
.dropdown{position:absolute;top:calc(100% + 6px);left:0;min-width:270px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow-lg);padding:8px;opacity:0;visibility:hidden;transform:translateY(8px);transition:.2s}
.main-nav li.has-drop:hover>.dropdown,.main-nav li.open>.dropdown{opacity:1;visibility:visible;transform:none}
.dropdown a{display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:10px;color:var(--ink-soft);font-size:.93rem;line-height:1.35}
.dropdown a:hover{background:#fff4f2;color:var(--coral)}
.dropdown .dot{width:8px;height:8px;border-radius:50%;flex:none}
.header-cta{display:flex;gap:10px}
.nav-toggle{display:none;background:#f3f0ff;border:0;border-radius:12px;width:44px;height:44px;cursor:pointer}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{display:block;width:20px;height:2px;background:var(--ink);margin:auto;position:relative;transition:.2s}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0}
.nav-toggle span::before{top:-6px}.nav-toggle span::after{top:6px}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:80px 0 90px}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center 30%;z-index:-2}
.hero::before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(100deg,rgba(255,255,255,.96) 0%,rgba(255,247,251,.9) 42%,rgba(255,240,248,.35) 70%,rgba(230,244,255,.15) 100%)}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:.85rem;font-weight:600;color:var(--violet);box-shadow:var(--shadow);margin-bottom:18px}
.eyebrow i{width:8px;height:8px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 4px rgba(33,199,168,.2)}
.hero h1 span{background:linear-gradient(90deg,var(--coral),var(--violet) 60%,var(--sky));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{font-size:1.15rem;color:var(--ink-soft);max-width:580px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:26px 0 22px}
.cat-select-box{display:flex;flex-wrap:wrap;align-items:center;gap:10px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:10px 10px 10px 18px;box-shadow:var(--shadow);max-width:560px}
.cat-select-box label{font-weight:600;font-size:.92rem;color:var(--ink-soft)}
.cat-select{flex:1;min-width:180px;appearance:none;-webkit-appearance:none;font:inherit;font-size:.95rem;padding:.7em 2.4em .7em 1em;border-radius:12px;border:1px solid var(--line);background:#faf9ff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%237c5cff' stroke-width='2' fill='none'/%3E%3C/svg%3E") no-repeat right 14px center;color:var(--ink);cursor:pointer}
.hero-stats{display:flex;gap:28px;margin-top:26px;flex-wrap:wrap}
.hero-stats b{display:block;font-size:1.6rem;color:var(--ink)}
.hero-stats span{font-size:.85rem;color:var(--muted)}
.hero-card{background:rgba(255,255,255,.88);border:1px solid rgba(255,255,255,.9);border-radius:24px;padding:26px;box-shadow:var(--shadow-lg);backdrop-filter:blur(8px)}
.hero-card h2{font-size:1.2rem;margin-bottom:14px}
.hero-card ol{margin:0;padding:0;list-style:none;counter-reset:s}
.hero-card li{counter-increment:s;display:flex;gap:12px;align-items:flex-start;padding:10px 0;border-bottom:1px dashed var(--line);font-size:.95rem;color:var(--ink-soft)}
.hero-card li:last-child{border:0}
.hero-card li::before{content:counter(s);flex:none;width:28px;height:28px;border-radius:9px;display:grid;place-items:center;font-weight:700;font-size:.85rem;color:#fff;background:linear-gradient(135deg,var(--violet),var(--sky))}
.hero-card li:nth-child(2)::before{background:linear-gradient(135deg,var(--coral),var(--pink))}
.hero-card li:nth-child(3)::before{background:linear-gradient(135deg,var(--mint),var(--sky))}
.hero-card li:nth-child(4)::before{background:linear-gradient(135deg,var(--sun),var(--coral))}

/* ---------- Sections ---------- */
.section{padding:70px 0}
.section-head{text-align:center;max-width:720px;margin:0 auto 40px}
.section-head p{color:var(--ink-soft)}
.tag{display:inline-block;font-size:.8rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--coral);margin-bottom:8px}

/* Category grid */
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.cat-card{position:relative;display:block;border-radius:var(--radius);overflow:hidden;background:var(--card);box-shadow:var(--shadow);transition:transform .25s,box-shadow .25s;color:var(--ink)}
.cat-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);color:var(--ink)}
.cat-card figure{margin:0;aspect-ratio:4/3.4;overflow:hidden;position:relative}
.cat-card img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.cat-card:hover img{transform:scale(1.07)}
.cat-card figure::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 55%,rgba(31,35,64,.25))}
.cat-body{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:14px 16px}
.cat-body h3{margin:0;font-size:1.05rem}
.cat-body small{display:block;color:var(--muted);font-size:.8rem;font-weight:500}
.cat-arrow{flex:none;width:34px;height:34px;border-radius:50%;display:grid;place-items:center;color:#fff;font-weight:700;transition:transform .2s}
.cat-card:hover .cat-arrow{transform:rotate(-45deg)}
.c1 .cat-arrow,.dot.c1{background:var(--coral)}.c2 .cat-arrow,.dot.c2{background:var(--violet)}
.c3 .cat-arrow,.dot.c3{background:var(--sky)}.c4 .cat-arrow,.dot.c4{background:var(--mint)}
.c5 .cat-arrow,.dot.c5{background:var(--sun)}.c6 .cat-arrow,.dot.c6{background:var(--pink)}
.c7 .cat-arrow,.dot.c7{background:#9b7bff}.c8 .cat-arrow,.dot.c8{background:#ff9f43}

/* Features */
.features{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.feature{background:#fff;border-radius:var(--radius);padding:24px;border:1px solid var(--line)}
.feature .ico{width:48px;height:48px;border-radius:14px;display:grid;place-items:center;font-size:1.4rem;margin-bottom:14px}
.feature h3{font-size:1.05rem}
.feature p{font-size:.93rem;color:var(--ink-soft);margin:0}
.ico.a{background:#fff0ee}.ico.b{background:#f0ecff}.ico.c{background:#e9f7ff}.ico.d{background:#e6fbf5}

/* Guide cards */
.guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.guide-card{display:flex;flex-direction:column;background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .25s,box-shadow .25s}
.guide-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.guide-card .thumb{aspect-ratio:16/9;overflow:hidden}
.guide-card .thumb img{width:100%;height:100%;object-fit:cover}
.guide-card .body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1}
.guide-card .meta{font-size:.78rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--mint);margin-bottom:6px}
.guide-card h3{font-size:1.1rem;margin-bottom:8px}
.guide-card h3 a{color:var(--ink)}
.guide-card h3 a:hover{color:var(--violet)}
.guide-card p{font-size:.93rem;color:var(--ink-soft);flex:1}
.read-more{font-weight:700;font-size:.92rem}

/* Article (home + single) */
.article-layout{display:grid;grid-template-columns:260px 1fr;gap:40px;align-items:start}
.toc{position:sticky;top:96px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.toc strong{display:block;margin-bottom:10px}
.toc ol{margin:0;padding-left:18px;font-size:.9rem}
.toc li{margin:6px 0}
.toc a{color:var(--ink-soft)}
.toc a:hover{color:var(--coral)}
.prose{background:#fff;border-radius:24px;padding:44px 48px;box-shadow:var(--shadow);min-width:0}
.prose h2{margin-top:1.6em;font-size:1.6rem;scroll-margin-top:96px}
.prose h2:first-child{margin-top:0}
.prose h3{margin-top:1.4em}
.prose ul,.prose ol{padding-left:1.3em;margin:0 0 1.2em}
.prose li{margin:.35em 0}
.prose blockquote{margin:1.4em 0;padding:16px 22px;border-left:4px solid var(--violet);background:#f7f5ff;border-radius:0 14px 14px 0;color:var(--ink-soft)}
.prose table{width:100%;border-collapse:collapse;margin:1.2em 0;font-size:.95rem;display:block;overflow-x:auto}
.prose th,.prose td{padding:10px 12px;border:1px solid var(--line);text-align:left}
.prose th{background:#f7f5ff}
.prose .callout{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;padding:20px 24px;border-radius:18px;background:linear-gradient(120deg,#fff1f5,#eef6ff);margin:1.6em 0}
.prose .callout p{margin:0;font-weight:600}
.prose a:not(.btn){text-decoration:underline;text-decoration-color:rgba(124,92,255,.35);text-underline-offset:3px}

/* FAQ */
.faq{max-width:860px;margin:0 auto}
.faq details{background:#fff;border:1px solid var(--line);border-radius:16px;padding:4px 22px;margin-bottom:12px}
.faq summary{cursor:pointer;font-weight:600;padding:14px 0;list-style:none;display:flex;justify-content:space-between;gap:10px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:1.4rem;line-height:1;color:var(--violet)}
.faq details[open] summary::after{content:"–"}
.faq details p{color:var(--ink-soft);margin-bottom:16px}

/* CTA band */
.cta-band{border-radius:28px;padding:50px;text-align:center;background:linear-gradient(120deg,#ffe3ec 0%,#efe8ff 45%,#dff3ff 100%);position:relative;overflow:hidden}
.cta-band h2{margin-bottom:10px}
.cta-band p{color:var(--ink-soft);max-width:620px;margin:0 auto 22px}
.cta-band .hero-actions{justify-content:center;margin:0}

/* Single */
.page-hero{padding:46px 0 30px}
.breadcrumbs{font-size:.88rem;color:var(--muted);margin-bottom:14px}
.breadcrumbs a{color:var(--muted)}
.breadcrumbs a:hover{color:var(--violet)}
.page-hero h1{font-size:clamp(1.8rem,3.6vw,2.7rem)}
.post-meta{display:flex;flex-wrap:wrap;gap:14px;color:var(--muted);font-size:.9rem}
.single-cover{border-radius:24px;overflow:hidden;margin-bottom:30px;box-shadow:var(--shadow);aspect-ratio:21/9}
.single-cover img{width:100%;height:100%;object-fit:cover}
.single-layout{display:grid;grid-template-columns:1fr 300px;gap:36px;align-items:start;padding-bottom:70px}
.sidebar{position:sticky;top:96px;display:grid;gap:20px}
.widget{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.widget h3{font-size:1rem;margin-bottom:12px}
.widget ul{list-style:none;margin:0;padding:0}
.widget li{padding:8px 0;border-bottom:1px dashed var(--line);font-size:.92rem;line-height:1.4}
.widget li:last-child{border:0}
.widget .btn{width:100%;justify-content:center;margin-top:8px}
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:30px}
.post-nav a{display:block;background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px 18px;font-weight:600;color:var(--ink);font-size:.95rem}
.post-nav small{display:block;color:var(--muted);font-weight:500}
.archive-list{padding-bottom:70px}
.single-layout>*,.article-layout>*,.hero-grid>*{min-width:0}
.prose{overflow-wrap:break-word}
.widget .cat-select-box{padding:10px;box-shadow:none}
.widget .cat-select{min-width:0;width:100%}
.pagination{display:flex;justify-content:center;gap:8px;margin-top:30px}
.pagination .page-numbers{padding:8px 14px;border-radius:10px;background:#fff;border:1px solid var(--line)}
.pagination .current{background:var(--violet);color:#fff}

/* Footer */
.site-footer{margin-top:40px;background:#1f2340;color:#c9cbe0;padding:56px 0 26px;font-size:.93rem}
.site-footer a{color:#e6e7f5}
.site-footer a:hover{color:var(--sun)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:30px}
.site-footer h4{color:#fff;font-size:1rem;margin-bottom:14px}
.site-footer ul{list-style:none;margin:0;padding:0}
.site-footer li{margin:7px 0}
.site-footer .brand{color:#fff;margin-bottom:12px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:36px;padding-top:20px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;font-size:.85rem;color:#9a9db8}

/* WP core */
.alignleft{float:left;margin:0 1.5em 1em 0}.alignright{float:right;margin:0 0 1em 1.5em}.aligncenter{margin:0 auto 1em}
.wp-caption-text{font-size:.85rem;color:var(--muted)}

/* ---------- Responsive ---------- */
@media (max-width:1080px){
  .header-cta .btn-ghost{display:none}
  .cat-grid{grid-template-columns:repeat(3,1fr)}
  .features{grid-template-columns:repeat(2,1fr)}
  .article-layout{grid-template-columns:1fr}
  .toc{position:static}
  .single-layout{grid-template-columns:1fr}
  .sidebar{position:static}
}
@media (max-width:900px){
  .nav-toggle{display:block}
  .main-nav{position:fixed;inset:72px 0 auto 0;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--shadow-lg);max-height:calc(100vh - 72px);overflow:auto;display:none;padding:12px 16px 20px}
  .main-nav.is-open{display:block}
  .main-nav>ul{flex-direction:column;align-items:stretch}
  .main-nav>ul>li>a,.main-nav>ul>li>button{width:100%;justify-content:space-between}
  .dropdown{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:0;display:none;padding:0 0 6px 10px}
  .main-nav li.open>.dropdown{display:block}
  .main-nav li.has-drop:hover>.dropdown{display:none}
  .main-nav li.has-drop.open:hover>.dropdown{display:block}
  .header-cta{display:none}
  .main-nav .mobile-cta{display:flex;gap:10px;flex-wrap:wrap;margin-top:12px}
  .hero{padding:50px 0 60px}
  .hero::before{background:linear-gradient(180deg,rgba(255,255,255,.93),rgba(255,247,251,.88))}
  .hero-grid{grid-template-columns:1fr}
  .guide-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (min-width:901px){.main-nav .mobile-cta{display:none}}
@media (max-width:640px){
  body{font-size:16px}
  .wrap{padding:0 16px}
  .section{padding:50px 0}
  .cat-grid{grid-template-columns:repeat(2,1fr);gap:14px}
  .cat-body{padding:10px 12px}
  .cat-body h3{font-size:.95rem}
  .cat-arrow{width:28px;height:28px}
  .features,.guide-grid{grid-template-columns:1fr}
  .prose{padding:26px 20px;border-radius:18px}
  .cta-band{padding:34px 20px}
  .footer-grid{grid-template-columns:1fr}
  .post-nav{grid-template-columns:1fr}
  .hero-actions .btn{flex:1;justify-content:center}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}