/* Level-Up Operations theme styles. Design: Level-Up Industrial Cobalt */

/* ---------- Fonts (self-hosted) ---------- */
@font-face{font-family:'Archivo';font-style:normal;font-weight:700;font-display:swap;src:url('../fonts/archivo-700.woff2') format('woff2')}
@font-face{font-family:'Archivo';font-style:normal;font-weight:800;font-display:swap;src:url('../fonts/archivo-800.woff2') format('woff2')}
@font-face{font-family:'Barlow';font-style:normal;font-weight:400;font-display:swap;src:url('../fonts/barlow-400.woff2') format('woff2')}
@font-face{font-family:'Barlow';font-style:italic;font-weight:400;font-display:swap;src:url('../fonts/barlow-400-italic.woff2') format('woff2')}
@font-face{font-family:'Barlow';font-style:normal;font-weight:600;font-display:swap;src:url('../fonts/barlow-600.woff2') format('woff2')}

/* ---------- Tokens ---------- */
:root{
  --bg:#F4F6FA;
  --surface:#FFFFFF;
  --ink:#0E1420;
  --ink-soft:#3C475C;
  --accent:#1D5BDF;
  --accent-deep:#1546AC;
  --dark:#0A0F1E;
  --dark-surface:#131B2E;
  --steel:#8CA3C7;
  --line:#E2E8F4;
  --line-dark:rgba(140,163,199,.18);
  --font-display:'Archivo',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --font-body:'Barlow',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --radius-sm:6px;
  --radius-md:12px;
  --container:1200px;
  --space-1:8px; --space-2:20px; --space-3:48px; --space-4:96px;
}

/* ---------- Base ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font-body);font-size:17px;line-height:1.65;font-weight:400}
img{max-width:100%;height:auto;display:block}
:where(h1,h2,h3,h4,h5,h6){font-family:var(--font-display);font-weight:800;line-height:1.1;margin:0 0 .5em;letter-spacing:-0.01em}
h1{font-size:clamp(2.1rem,4.5vw,3.4rem)}
h2{font-size:clamp(1.7rem,3vw,2.4rem)}
h3{font-size:clamp(1.25rem,2vw,1.5rem);font-weight:700}
h4{font-size:1.1rem;font-weight:700}
p{margin:0 0 1.2em}
a{color:var(--accent);text-decoration:none}
a:hover{color:var(--accent-deep);text-decoration:underline}
ul,ol{padding-left:1.3em}
blockquote{margin:1.6em 0;padding:.6em 0 .6em 1.4em;border-left:3px solid var(--accent);font-style:italic;color:var(--ink-soft)}
code,pre{font-family:ui-monospace,'SF Mono',Menlo,Consolas,monospace;font-size:.92em;background:#EAEFF7;border-radius:var(--radius-sm)}
code{padding:.15em .4em}
pre{padding:1em;overflow-x:auto}
hr{border:0;border-top:1px solid var(--line);margin:2.5em 0}
table{border-collapse:collapse;width:100%;margin:1.5em 0}
th,td{border:1px solid var(--line);padding:.6em .8em;text-align:left}
th{background:#EAEFF7;font-family:var(--font-body);font-weight:600}

.screen-reader-text{position:absolute!important;clip:rect(1px,1px,1px,1px);clip-path:inset(50%);width:1px;height:1px;overflow:hidden;word-wrap:normal!important}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--accent);color:#fff;padding:.6em 1.2em;z-index:9999}
.skip-link:focus{left:0}

.container{max-width:var(--container);margin:0 auto;padding:0 24px}

/* ---------- Buttons ---------- */
.btn{display:inline-block;font-family:var(--font-body);font-weight:600;font-size:1rem;line-height:1;padding:15px 28px;border-radius:var(--radius-sm);border:1.5px solid transparent;cursor:pointer;transition:background-color .15s ease,color .15s ease,border-color .15s ease;text-decoration:none}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-deep);color:#fff}
.btn-outline{background:transparent;color:var(--accent);border-color:var(--accent)}
.btn-outline:hover{background:var(--accent);color:#fff}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.35)}
.btn-outline-light:hover{border-color:#fff;color:#fff;background:rgba(255,255,255,.08)}

/* ---------- Header ---------- */
.site-header{background:var(--dark);border-bottom:1px solid var(--line-dark);position:sticky;top:0;z-index:200}
.site-header .container{display:flex;align-items:center;justify-content:space-between;min-height:72px;gap:24px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none}
.brand:hover{text-decoration:none}
.brand img{width:46px;height:46px}
.brand-name{font-family:var(--font-display);font-weight:800;font-size:1.02rem;color:#fff;line-height:1.15;letter-spacing:.01em}
.brand-name span{color:var(--steel);display:block;font-family:var(--font-body);font-weight:600;font-size:.72rem;text-transform:uppercase;letter-spacing:.08em}
.main-nav ul{list-style:none;margin:0;padding:0;display:flex;gap:6px;align-items:center}
.main-nav a{display:block;color:#D4DDEC;font-weight:600;font-size:.98rem;padding:10px 14px;border-radius:var(--radius-sm)}
.main-nav a:hover{color:#fff;text-decoration:none;background:rgba(255,255,255,.06)}
.main-nav .current-menu-item > a,.main-nav .current_page_item > a,.main-nav .current-menu-ancestor > a{color:#fff;box-shadow:inset 0 -2px 0 var(--accent)}
.nav-toggle{display:none;background:none;border:1.5px solid rgba(255,255,255,.35);border-radius:var(--radius-sm);color:#fff;padding:9px 12px;font-family:var(--font-body);font-weight:600;font-size:.9rem;cursor:pointer}

/* ---------- Dark sections ---------- */
.band-dark{background:var(--dark);color:#E8EDF6}
.band-dark h1,.band-dark h2,.band-dark h3{color:#fff}
.band-dark p{color:#C3CEE0}
.band-dark a:not(.btn){color:#9DBCF5}

/* ---------- Hero ---------- */
.hero{background:var(--dark);background-image:radial-gradient(ellipse 900px 500px at 78% 40%,rgba(29,91,223,.22),transparent 60%);color:#E8EDF6;overflow:hidden}
.hero .container{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:48px;align-items:center;padding-top:64px;padding-bottom:64px}
.hero-eyebrow{font-family:var(--font-body);font-weight:600;font-size:.85rem;text-transform:uppercase;letter-spacing:.08em;color:var(--steel);margin:0 0 14px}
.hero h1{color:#fff;margin-bottom:18px}
.hero h1 em{font-style:normal;color:#5B8DF2}
.hero-sub{font-size:1.18rem;line-height:1.55;color:#C3CEE0;max-width:34em;margin-bottom:28px}
.hero-ctas{display:flex;gap:14px;flex-wrap:wrap}
.hero-book{position:relative}
.hero-book img{width:100%;max-width:460px;margin:0 auto;filter:drop-shadow(0 24px 48px rgba(4,8,18,.55))}

/* ---------- Sections ---------- */
.section{padding:var(--space-4) 0}
.section-tight{padding:var(--space-3) 0}
.section-head{max-width:44em;margin-bottom:40px}
.section-head p{color:var(--ink-soft);font-size:1.08rem}
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split-wide-left{grid-template-columns:7fr 5fr}
.split-wide-right{grid-template-columns:5fr 7fr}

/* ---------- Cards ---------- */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);overflow:hidden}
.card-body{padding:26px 28px}

.post-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:24px}
.post-card{display:flex;flex-direction:column;transition:border-color .15s ease}
.post-card:hover{border-color:var(--accent)}
.post-card .cat{font-size:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--accent);margin-bottom:10px}
.post-card h3{margin-bottom:10px;font-size:1.25rem}
.post-card h3 a{color:var(--ink)}
.post-card h3 a:hover{color:var(--accent);text-decoration:none}
.post-card p{color:var(--ink-soft);font-size:.98rem;margin-bottom:14px}
.post-card .meta{margin-top:auto;color:var(--ink-soft);font-size:.86rem}

.book-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:28px}
.book-card{text-align:left}
.book-card .cover{background:var(--dark-surface);padding:28px;display:flex;justify-content:center}
.book-card .cover img{max-height:280px;width:auto}
.book-card .num{font-size:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-soft)}
.book-card h3 a{color:var(--ink)}
.book-card h3 a:hover{color:var(--accent);text-decoration:none}
.badge{display:inline-block;font-size:.78rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;padding:4px 10px;border-radius:var(--radius-sm)}
.badge-available{background:#E3F2E8;color:#166B34}
.badge-coming{background:#EAEFF7;color:var(--ink-soft)}

/* ---------- Blog / article ---------- */
.archive-header{padding:56px 0 8px}
.archive-header p{color:var(--ink-soft);max-width:44em;font-size:1.08rem}
.article-main{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);padding:clamp(24px,5vw,64px);max-width:860px;margin:0 auto}
.article-main .entry-meta{color:var(--ink-soft);font-size:.92rem;margin-bottom:24px}
.article-main .entry-meta a{color:var(--accent)}
.entry-content{max-width:66ch}
.entry-content h2{margin-top:1.6em}
.entry-content h3{margin-top:1.4em}
.entry-content img{border-radius:var(--radius-md);margin:1.5em 0}
.entry-content li{margin-bottom:.4em}
.post-nav{display:flex;justify-content:space-between;gap:20px;max-width:860px;margin:32px auto 0}

.pagination{display:flex;gap:8px;justify-content:center;margin-top:48px}
.pagination .page-numbers{display:inline-block;padding:9px 15px;border:1px solid var(--line);border-radius:var(--radius-sm);color:var(--ink);font-weight:600;background:var(--surface)}
.pagination .page-numbers.current{background:var(--accent);border-color:var(--accent);color:#fff}
.pagination a.page-numbers:hover{border-color:var(--accent);text-decoration:none}

.category-pills{display:flex;flex-wrap:wrap;gap:10px;margin:20px 0 36px}
.category-pills a,.category-pills button{font-family:var(--font-body);font-weight:600;font-size:.9rem;padding:8px 16px;border-radius:var(--radius-sm);border:1px solid var(--line);background:var(--surface);color:var(--ink-soft);cursor:pointer;text-decoration:none}
.category-pills a:hover,.category-pills button:hover{border-color:var(--accent);color:var(--accent)}
.category-pills .active{background:var(--accent);border-color:var(--accent);color:#fff}

/* ---------- Videos ---------- */
.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:24px}
.video-card .frame{position:relative;aspect-ratio:16/9;background:var(--dark-surface)}
.video-card iframe,.video-card .frame img{position:absolute;inset:0;width:100%;height:100%;border:0;object-fit:cover}
.video-card .yt-facade{position:absolute;inset:0;width:100%;height:100%;border:0;background:none;padding:0;cursor:pointer}
.video-card .yt-facade::after{content:'';position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:64px;height:44px;background:var(--accent);border-radius:10px;opacity:.94}
.video-card .yt-facade::before{content:'';position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);border-style:solid;border-width:9px 0 9px 15px;border-color:transparent transparent transparent #fff;z-index:1}
.video-card h3{font-size:1.06rem;margin:0}
.video-card .topic{font-size:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--accent);margin-bottom:8px}

/* ---------- Book single ---------- */
.book-hero{background:var(--dark);background-image:radial-gradient(ellipse 800px 460px at 22% 45%,rgba(29,91,223,.2),transparent 60%)}
.book-hero .container{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:56px;align-items:center;padding-top:64px;padding-bottom:64px}
.book-hero img{max-width:440px;width:100%;filter:drop-shadow(0 24px 48px rgba(4,8,18,.55))}
.book-hero .series-label{font-weight:600;font-size:.85rem;text-transform:uppercase;letter-spacing:.08em;color:var(--steel);margin-bottom:14px}
.book-hero h1{margin-bottom:8px}
.book-hero .subtitle{font-size:1.25rem;color:#C3CEE0;margin-bottom:24px;line-height:1.45}

/* ---------- Newsletter ---------- */
.newsletter-band{background:var(--dark);background-image:radial-gradient(ellipse 700px 400px at 85% 60%,rgba(29,91,223,.18),transparent 65%)}
.newsletter-band .container{padding-top:72px;padding-bottom:72px;display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:48px;align-items:center}
.newsletter-form{display:flex;gap:12px;flex-wrap:wrap}
.newsletter-form input[type=email]{flex:1 1 240px;padding:14px 16px;font-family:var(--font-body);font-size:1rem;border:1px solid var(--line-dark);border-radius:var(--radius-sm);background:var(--dark-surface);color:#fff}
.newsletter-form input[type=email]::placeholder{color:var(--steel)}
.newsletter-form input[type=email]:focus{outline:2px solid var(--accent);outline-offset:1px}
.form-note{font-size:.86rem;color:var(--steel);margin-top:12px;margin-bottom:0}
.hp-field{position:absolute;left:-9999px;opacity:0}

/* ---------- Forms (light) ---------- */
.form-grid{display:grid;gap:18px;max-width:640px}
.form-grid label{font-weight:600;font-size:.95rem;display:block;margin-bottom:6px}
.form-grid input[type=text],.form-grid input[type=email],.form-grid textarea{width:100%;padding:13px 15px;font-family:var(--font-body);font-size:1rem;border:1px solid #C6D2E6;border-radius:var(--radius-sm);background:var(--surface);color:var(--ink)}
.form-grid input:focus,.form-grid textarea:focus{outline:2px solid var(--accent);outline-offset:1px}
.notice-ok{background:#E3F2E8;color:#166B34;border:1px solid #BCE0C9;border-radius:var(--radius-sm);padding:14px 18px;margin-bottom:24px;font-weight:600}
.notice-err{background:#FBE9E7;color:#8C2A1C;border:1px solid #F0C4BC;border-radius:var(--radius-sm);padding:14px 18px;margin-bottom:24px;font-weight:600}

/* ---------- About ---------- */
.about-hero .container{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:56px;align-items:center;padding-top:64px;padding-bottom:64px}
.about-photo{border-radius:var(--radius-md);overflow:hidden;background:var(--dark-surface);max-width:420px}
.credentials{display:grid;grid-template-columns:1fr 1fr;gap:2px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius-md);overflow:hidden;margin-top:8px}
.credentials div{background:var(--surface);padding:20px 22px}
.credentials strong{font-family:var(--font-display);font-weight:700;display:block;margin-bottom:4px}
.credentials span{color:var(--ink-soft);font-size:.95rem}

/* ---------- Footer ---------- */
.site-footer{background:var(--dark);color:var(--steel);border-top:1px solid var(--line-dark);margin-top:0}
.site-footer .container{padding-top:56px;padding-bottom:32px}
.footer-cols{display:grid;grid-template-columns:5fr 3fr 4fr;gap:48px;padding-bottom:40px;border-bottom:1px solid var(--line-dark)}
.site-footer h4{color:#fff;font-size:.95rem;margin-bottom:16px}
.site-footer ul{list-style:none;margin:0;padding:0}
.site-footer li{margin-bottom:10px}
.site-footer a{color:var(--steel)}
.site-footer a:hover{color:#fff}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand img{width:42px;height:42px}
.footer-brand .brand-name{font-size:.95rem}
.footer-about{font-size:.95rem;line-height:1.6;max-width:32em}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:24px;font-size:.88rem}

/* ---------- Reveal (subtle, degrades to visible) ---------- */
html.js .reveal{opacity:0;transform:translateY(14px);transition:opacity .5s ease,transform .5s ease}
html.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){html.js .reveal{opacity:1;transform:none;transition:none}}

/* ---------- Responsive ---------- */
@media (max-width:960px){
  .hero .container,.book-hero .container,.about-hero .container,.newsletter-band .container{grid-template-columns:1fr;gap:36px}
  .book-hero .container{padding-top:48px;padding-bottom:48px}
  .hero-book{order:-1}
  .hero-book img{max-width:320px}
  .book-hero img{max-width:320px;margin:0 auto}
  .split,.split-wide-left,.split-wide-right{grid-template-columns:1fr;gap:36px}
  .footer-cols{grid-template-columns:1fr;gap:32px}
  .section{padding:64px 0}
}
@media (max-width:820px){
  .nav-toggle{display:block}
  .main-nav{display:none;position:absolute;top:100%;left:0;right:0;background:var(--dark);border-bottom:1px solid var(--line-dark);padding:12px 24px 20px}
  .main-nav.open{display:block}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:2px}
  .main-nav a{padding:12px 10px;font-size:1.05rem}
  .credentials{grid-template-columns:1fr}
}
@media (max-width:560px){
  body{font-size:16px}
  .hero .container{padding-top:44px;padding-bottom:44px}
  .btn{width:100%;text-align:center}
  .hero-ctas{flex-direction:column}
}