/*
Theme Name: PreQuake Knowledge Center
Theme URI: https://prequake.ai/resources/
Author: PreQuake
Description: Lightweight custom theme for the PreQuake Knowledge Center. Matches the main site's brand system exactly — Space Grotesk / IBM Plex Sans / IBM Plex Mono, same color tokens, same nav and footer structure.
Version: 1.0
Requires at least: 6.0
Requires PHP: 7.4
*/

:root{
  --ink:#14181B; --paper:#EEF1EF; --card:#FFFFFF;
  --primary:#16323A; --primary-deep:#0E2227; --primary-tint:#E7EEEC; --primary-line:#C9DAD6;
  --amber:#D9720C; --amber-tint:#FBEEE0;
  --red:#B23A2E; --graphite:#6B7480; --line:#DDE2DF;
  --display:'Space Grotesk',sans-serif; --body:'IBM Plex Sans',sans-serif; --mono:'IBM Plex Mono',monospace;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--body);color:var(--ink);background:var(--paper);font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none} img{max-width:100%}
.wrap{max-width:1140px;margin:0 auto;padding:0 24px}
.mono{font-family:var(--mono)}
.eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.13em;text-transform:uppercase;color:var(--primary);display:block;margin-bottom:14px}
h1,h2,h3{font-family:var(--display);line-height:1.15;letter-spacing:-.01em;font-weight:600}
h1{font-size:clamp(30px,4.2vw,46px);max-width:20ch}
h2{font-size:clamp(24px,3vw,32px);max-width:22ch}
h3{font-size:19px}
.lede{font-size:18px;color:#3d4448;max-width:60ch;margin-top:14px}
.section{padding:64px 0;border-top:1px solid var(--line)}
.btn{display:inline-block;font-family:var(--display);font-weight:600;font-size:15.5px;padding:14px 26px;border-radius:3px;text-decoration:none;transition:transform .15s ease}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-deep);transform:translateY(-1px)}

/* Nav */
nav{position:sticky;top:0;background:rgba(238,241,239,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);z-index:50}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:68px}
.logo{font-family:var(--display);font-weight:700;font-size:19px;display:flex;align-items:center;gap:9px;color:var(--ink)}
.logo-sub{font-family:var(--mono);font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--graphite);font-weight:400}
.nav-links{display:flex;gap:24px;align-items:center;font-size:14.5px}
.nav-links a{color:#3d4448}
.nav-links a:hover{color:var(--primary)}
.nav-cta{font-family:var(--display);font-weight:600;color:var(--primary) !important}
@media(max-width:860px){.nav-links a:not(.nav-cta):not(.nav-home){display:none}}

/* Knowledge Center grid */
.kc-hero{padding-bottom:32px}
.kc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:12px}
@media(max-width:860px){.kc-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.kc-grid{grid-template-columns:1fr}}
.kc-tile{display:block;background:var(--card);border:1px solid var(--line);border-radius:10px;padding:26px;transition:border-color .15s ease,transform .15s ease}
.kc-tile:hover{border-color:var(--primary-line);transform:translateY(-2px)}
.kc-tile h3{margin-bottom:8px}
.kc-tile p{color:var(--graphite);font-size:14.5px;margin-bottom:16px}
.kc-tile .kc-count{font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:var(--primary)}
.kc-tile-soon{opacity:.55;cursor:default}
.kc-tile-soon:hover{transform:none;border-color:var(--line)}
.kc-tile-soon .kc-count{color:var(--graphite)}

/* Post lists */
.kc-list{display:flex;flex-direction:column}
.kc-row{display:flex;justify-content:space-between;align-items:baseline;gap:16px;padding:18px 0;border-bottom:1px solid var(--line)}
.kc-row:hover .kc-row-title{color:var(--primary)}
.kc-row-cat{font-size:11px;color:var(--amber);text-transform:uppercase;letter-spacing:.06em;min-width:90px}
.kc-row-title{font-family:var(--display);font-weight:600;font-size:16.5px;flex:1}
.kc-row-date{font-size:12.5px;color:var(--graphite);white-space:nowrap}
.kc-pagination{margin-top:28px;font-family:var(--mono);font-size:13px}
.kc-pagination a{color:var(--primary);margin-right:14px}

/* Single article */
.kc-article h1{margin-top:6px}
.kc-meta{color:var(--graphite);font-size:13px;margin-top:10px;margin-bottom:36px}
.kc-content{font-size:17px;color:#2b3033}
.kc-content h2{margin-top:40px;margin-bottom:14px;font-size:24px;color:var(--primary)}
.kc-content h3{margin-top:28px;margin-bottom:10px}
.kc-content p{margin-bottom:18px}
.kc-content ul,.kc-content ol{margin:0 0 18px 22px}
.kc-content li{margin-bottom:8px}
.kc-content blockquote{border-left:3px solid var(--amber);padding-left:18px;color:var(--graphite);font-style:italic;margin:24px 0}
.kc-content strong{color:var(--ink)}
.kc-content img{border-radius:8px;margin:20px 0}
.kc-cta-block{margin-top:56px;padding:36px;background:var(--primary-tint);border:1px solid var(--primary-line);border-radius:10px}
.kc-cta-block h3{color:var(--primary);margin-bottom:8px}
.kc-cta-block p{color:#3d4448;margin-bottom:20px;max-width:56ch}

/* Footer */
footer{border-top:1px solid var(--line)}
.foot{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;padding:32px 0;font-size:14px;color:var(--graphite)}
.foot a{text-decoration:none}
.newsletter-strip{border-top:1px solid var(--line);padding:24px 0}
.newsletter-form{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:14px;color:var(--graphite)}
.newsletter-form input{flex:1;min-width:200px;padding:10px 14px;border:1px solid var(--line);border-radius:4px;font-family:var(--body);background:#fff}
.newsletter-form button{font-family:var(--display);font-weight:600;background:var(--primary);color:#fff;border:none;padding:10px 20px;border-radius:4px;cursor:pointer}
.newsletter-form button:hover{background:var(--primary-deep)}