/*
Theme Name: PhysicsZ
Theme URI: https://physicsfundamentalsz.com
Author: Physics Fundamentals
Description: Premium physics-education theme — dark-navy editorial design with interactive games, calculators and an in-depth article library. Built to mirror the look and depth of physicsfundamentals.org.
Version: 2.0.0
Requires at least: 6.0
Requires PHP: 8.0
Text Domain: physicsz
*/

/* ============================================================
   Design tokens — mirrors physicsfundamentals.org
   ============================================================ */
:root{
  --bg:#0b1221;          /* page background (theme-color) */
  --bg-2:#0f172a;        /* slate-900 panels */
  --bg-3:#111c36;        /* deep navy cards */
  --bg-4:#1a2744;        /* raised navy */
  --panel:#0f1a30;
  --line:rgba(148,163,184,.14);
  --line-2:rgba(148,163,184,.22);

  --text:#f1f5f9;        /* slate-100 */
  --text-2:#cbd5e1;      /* slate-300 */
  --muted:#94a3b8;       /* slate-400 */
  --faint:#64748b;       /* slate-500 */

  --blue:#3b82f6;
  --blue-600:#2563eb;
  --blue-400:#60a5fa;
  --blue-900:#1e3a8a;
  --amber:#f59e0b;
  --green:#22c55e;
  --violet:#8b5cf6;

  --grad:linear-gradient(120deg,#60a5fa,#3b82f6 55%,#2563eb);
  --grad-amber:linear-gradient(120deg,#fbbf24,#f59e0b);

  --serif:"Instrument Serif",Georgia,"Times New Roman",serif;
  --sans:"DM Sans",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;

  --maxw:1180px;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 24px 60px -28px rgba(2,6,23,.85);
  --shadow-blue:0 18px 50px -20px rgba(37,99,235,.45);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:
    radial-gradient(1100px 600px at 78% -8%,rgba(37,99,235,.16),transparent 60%),
    radial-gradient(900px 500px at 5% 0%,rgba(139,92,246,.10),transparent 55%),
    var(--bg);
  color:var(--text);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
::selection{background:rgba(59,130,246,.32)}

h1,h2,h3,h4{font-family:var(--serif);font-weight:400;line-height:1.08;letter-spacing:.2px;color:#fff;margin:0 0 .5em}
h1{font-size:clamp(2.6rem,6vw,4.6rem)}
h2{font-size:clamp(2rem,4vw,3.1rem)}
h3{font-size:1.5rem}
p{margin:0 0 1rem}
.mono{font-family:var(--mono)}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:96px 0;position:relative}
.section.tight{padding:64px 0}
.center{text-align:center;margin:0 auto}
.lead{font-size:1.18rem;color:var(--text-2)}
.eyebrow{display:inline-block;font-family:var(--mono);font-size:.74rem;letter-spacing:.22em;text-transform:uppercase;color:var(--blue-400);margin-bottom:14px}
.muted{color:var(--muted)}

/* ============ Buttons ============ */
.btn{display:inline-flex;align-items:center;gap:.5rem;font-family:var(--sans);font-weight:600;font-size:.98rem;
  padding:.78rem 1.4rem;border-radius:999px;border:1px solid transparent;cursor:pointer;transition:.18s ease;white-space:nowrap}
.btn svg{width:16px;height:16px}
.btn-primary{background:var(--blue-600);color:#fff;box-shadow:var(--shadow-blue)}
.btn-primary:hover{background:var(--blue);transform:translateY(-2px)}
.btn-ghost{background:rgba(148,163,184,.06);border-color:var(--line-2);color:var(--text)}
.btn-ghost:hover{background:rgba(148,163,184,.12);border-color:var(--blue-400);color:#fff}
.btn-amber{background:var(--grad-amber);color:#1a1206}
.btn-amber:hover{transform:translateY(-2px)}
.btn-sm{padding:.55rem 1rem;font-size:.86rem}

/* ============ Header ============ */
.site-header{position:sticky;top:0;z-index:60;backdrop-filter:blur(14px);
  background:rgba(11,18,33,.72);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:22px;height:70px}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--serif);font-size:1.45rem;color:#fff;letter-spacing:.3px}
.brand .mark{width:34px;height:34px;border-radius:9px;background:var(--grad);display:grid;place-items:center;box-shadow:var(--shadow-blue)}
.brand .mark svg{width:20px;height:20px;color:#fff}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-links a{font-size:.95rem;color:var(--text-2);padding:.5rem .7rem;border-radius:8px;transition:.15s}
.nav-links a:hover{color:#fff;background:rgba(148,163,184,.08)}
.nav-links a.cta{margin-left:8px}
.nav-toggle{display:none;margin-left:auto;background:none;border:1px solid var(--line-2);border-radius:9px;padding:8px;color:#fff;cursor:pointer}
.nav-toggle svg{width:22px;height:22px}
@media(max-width:940px){
  .nav-links{position:fixed;inset:70px 0 auto 0;flex-direction:column;align-items:stretch;gap:2px;
    background:rgba(11,18,33,.98);border-bottom:1px solid var(--line);padding:14px 20px 22px;margin:0;
    transform:translateY(-130%);transition:.25s;z-index:55}
  .nav-links.open{transform:translateY(0)}
  .nav-links a{padding:.85rem .6rem;border-radius:10px}
  .nav-links a.cta{margin-top:8px;text-align:center;justify-content:center}
  .nav-toggle{display:inline-flex}
}

/* ============ Hero ============ */
.hero{position:relative;padding:120px 0 90px;overflow:hidden}
.hero canvas{position:absolute;inset:0;width:100%;height:100%;z-index:0;opacity:.7}
.hero-inner{position:relative;z-index:2;max-width:880px;margin:0 auto;text-align:center}
.hero .badge{display:inline-flex;align-items:center;gap:8px;font-size:.82rem;color:var(--text-2);
  background:rgba(148,163,184,.08);border:1px solid var(--line-2);padding:.4rem .9rem;border-radius:999px;margin-bottom:26px}
.hero .badge .dot{width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 12px var(--green)}
.hero h1{margin-bottom:.35em}
.hero p.sub{font-size:1.22rem;color:var(--text-2);max-width:680px;margin:0 auto 30px}
.hero-cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.hero-stats{display:flex;gap:42px;justify-content:center;flex-wrap:wrap;margin-top:54px}
.hero-stats .s{text-align:center}
.hero-stats .n{font-family:var(--serif);font-size:2.4rem;color:#fff;line-height:1}
.hero-stats .l{font-size:.8rem;color:var(--muted);text-transform:uppercase;letter-spacing:.12em;margin-top:6px}

/* ============ Cards / grids ============ */
.glass{background:linear-gradient(180deg,rgba(255,255,255,.035),rgba(255,255,255,.012));
  border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.grid{display:grid;gap:22px}
.g-2{grid-template-columns:repeat(2,1fr)}
.g-3{grid-template-columns:repeat(3,1fr)}
.g-4{grid-template-columns:repeat(4,1fr)}
@media(max-width:900px){.g-3,.g-4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.g-2,.g-3,.g-4{grid-template-columns:1fr}}

.card{padding:26px;transition:.2s}
.card:hover{transform:translateY(-4px);border-color:var(--line-2)}
.card .ic{width:48px;height:48px;border-radius:12px;display:grid;place-items:center;margin-bottom:16px;
  background:rgba(59,130,246,.12);color:var(--blue-400);border:1px solid rgba(59,130,246,.2)}
.card .ic svg{width:24px;height:24px}
.card h3{margin-bottom:.4em;color:#fff}
.card p{color:var(--muted);font-size:.97rem;margin:0}
.card .more{display:inline-flex;align-items:center;gap:6px;margin-top:16px;color:var(--blue-400);font-weight:600;font-size:.92rem}
.card .more svg{width:15px;height:15px;transition:.15s}
.card:hover .more svg{transform:translateX(3px)}
.tag{display:inline-block;font-family:var(--mono);font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;
  padding:.25rem .6rem;border-radius:6px;background:rgba(59,130,246,.14);color:var(--blue-400);border:1px solid rgba(59,130,246,.18)}
.tag.amber{background:rgba(245,158,11,.14);color:var(--amber);border-color:rgba(245,158,11,.2)}
.tag.green{background:rgba(34,197,94,.14);color:var(--green);border-color:rgba(34,197,94,.2)}
.tag.violet{background:rgba(139,92,246,.14);color:var(--violet);border-color:rgba(139,92,246,.2)}

/* ============ Section headings ============ */
.sec-head{max-width:680px;margin:0 auto 52px;text-align:center}
.sec-head p{color:var(--muted)}

/* ============ Topic / category cards ============ */
.topic-card .ic{background:var(--grad);color:#fff;border:none}
.cat-card{display:flex;flex-direction:column;padding:26px}
.cat-card .row{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.cat-card .live{font-family:var(--mono);font-size:.66rem;letter-spacing:.1em;color:var(--green);
  display:inline-flex;align-items:center;gap:6px}
.cat-card .live .dot{width:7px;height:7px;border-radius:50%;background:var(--green);box-shadow:0 0 8px var(--green)}

/* ============ Article cards ============ */
.article-card{display:flex;flex-direction:column;overflow:hidden;padding:0}
.article-card .thumb{aspect-ratio:16/9;position:relative;display:block;background:linear-gradient(135deg,#16233f,#0d1729);overflow:hidden}
.article-card .thumb img{width:100%;height:100%;object-fit:cover}
.article-card .thumb .tag{position:absolute;top:12px;left:12px}
.article-card .body{padding:22px;display:flex;flex-direction:column;flex:1}
.article-card .meta{display:flex;align-items:center;gap:10px;font-size:.8rem;color:var(--faint);margin-bottom:10px}
.article-card h3{font-size:1.28rem;margin-bottom:.4em}
.article-card h3 a:hover{color:var(--blue-400)}
.article-card p{color:var(--muted);font-size:.95rem;flex:1}
.article-card .byline{display:flex;align-items:center;gap:9px;margin-top:16px;padding-top:14px;border-top:1px solid var(--line)}
.article-card .byline img,.byline .av{width:30px;height:30px;border-radius:50%;object-fit:cover;background:var(--bg-4)}
.article-card .byline .nm{font-size:.84rem;color:var(--text-2)}

/* ============ Feature list (why) ============ */
.feature .ic{background:rgba(245,158,11,.12);color:var(--amber);border-color:rgba(245,158,11,.2)}

/* ============ CTA band ============ */
.cta-band{background:linear-gradient(120deg,#10213f,#0c1730);border:1px solid var(--line-2);
  border-radius:24px;padding:60px 48px;text-align:center;position:relative;overflow:hidden;box-shadow:var(--shadow)}
.cta-band:before{content:"";position:absolute;inset:0;background:radial-gradient(600px 200px at 50% 0%,rgba(59,130,246,.22),transparent 70%)}
.cta-band>*{position:relative;z-index:1}
.cta-band h2{margin-bottom:.4em}
.cta-band p{color:var(--text-2);max-width:560px;margin:0 auto 26px}

/* ============ Signup form ============ */
.signup{display:flex;gap:10px;max-width:460px;margin:0 auto;flex-wrap:wrap}
.signup input{flex:1;min-width:200px;background:rgba(2,6,23,.5);border:1px solid var(--line-2);color:#fff;
  padding:.85rem 1.1rem;border-radius:999px;font-family:var(--sans);font-size:.95rem;outline:none}
.signup input:focus{border-color:var(--blue)}
.signup .note{flex-basis:100%;font-size:.82rem;color:var(--faint);margin-top:8px}

/* ============ FAQ ============ */
.faq{max-width:780px;margin:0 auto}
.faq details{border:1px solid var(--line);border-radius:12px;background:rgba(255,255,255,.02);margin-bottom:12px;padding:0 20px}
.faq summary{cursor:pointer;list-style:none;padding:18px 0;font-weight:600;color:#fff;display:flex;justify-content:space-between;align-items:center;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary .pm{flex:none;width:22px;height:22px;border:1px solid var(--line-2);border-radius:6px;display:grid;place-items:center;color:var(--blue-400);transition:.2s}
.faq details[open] summary .pm{transform:rotate(45deg)}
.faq p{color:var(--text-2);padding:0 0 18px;margin:0}

/* ============ Footer ============ */
.site-footer{border-top:1px solid var(--line);background:rgba(8,13,24,.6);margin-top:40px}
.footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding:64px 0 48px}
.footer-brand .brand{margin-bottom:14px}
.footer-brand p{color:var(--muted);font-size:.95rem;max-width:320px}
.socials{display:flex;gap:10px;margin-top:18px}
.socials a{width:38px;height:38px;border-radius:10px;border:1px solid var(--line-2);display:grid;place-items:center;color:var(--muted);transition:.15s}
.socials a:hover{color:#fff;border-color:var(--blue-400);background:rgba(59,130,246,.1)}
.socials svg{width:18px;height:18px}
.footer-col h4{font-family:var(--sans);font-weight:700;font-size:.82rem;letter-spacing:.12em;text-transform:uppercase;color:var(--text);margin-bottom:16px}
.footer-col a{display:block;color:var(--muted);font-size:.93rem;padding:5px 0;transition:.15s}
.footer-col a:hover{color:var(--blue-400)}
.footer-bottom{border-top:1px solid var(--line);padding:22px 0;display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;color:var(--faint);font-size:.86rem}
@media(max-width:820px){.footer-top{grid-template-columns:1fr 1fr;gap:30px}}
@media(max-width:520px){.footer-top{grid-template-columns:1fr}}

/* ============ Page hero (interior) ============ */
.page-hero{padding:72px 0 36px;text-align:center;position:relative}
.page-hero .eyebrow{margin-bottom:16px}
.page-hero h1{margin-bottom:.3em}
.page-hero p{color:var(--text-2);max-width:640px;margin:0 auto;font-size:1.12rem}
.breadcrumb{font-size:.84rem;color:var(--faint);margin-bottom:18px}
.breadcrumb a:hover{color:var(--blue-400)}
.breadcrumb span{margin:0 8px;opacity:.5}

/* ============ Reveal animation ============ */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}
.reveal[data-delay="1"]{transition-delay:.07s}.reveal[data-delay="2"]{transition-delay:.14s}
.reveal[data-delay="3"]{transition-delay:.21s}.reveal[data-delay="4"]{transition-delay:.28s}
.reveal[data-delay="5"]{transition-delay:.35s}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

/* ============ Games & calculators index ============ */
.tool-card{padding:24px;display:flex;flex-direction:column;height:100%}
.tool-card .top{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.tool-card .ic{width:46px;height:46px;border-radius:12px;display:grid;place-items:center;
  background:rgba(59,130,246,.12);color:var(--blue-400);border:1px solid rgba(59,130,246,.2)}
.tool-card .ic svg{width:24px;height:24px}
.diff{font-family:var(--mono);font-size:.68rem;letter-spacing:.08em;text-transform:uppercase;padding:.2rem .5rem;border-radius:5px}
.diff.easy{background:rgba(34,197,94,.14);color:var(--green)}
.diff.medium{background:rgba(245,158,11,.14);color:var(--amber)}
.diff.hard{background:rgba(244,63,94,.16);color:#fb7185}
.tool-card h3{font-size:1.25rem;margin-bottom:.35em}
.tool-card p{color:var(--muted);font-size:.93rem;flex:1;margin-bottom:16px}

/* ============ Game canvas shell ============ */
.game-shell{display:grid;grid-template-columns:1fr 300px;gap:22px;align-items:start}
@media(max-width:880px){.game-shell{grid-template-columns:1fr}}
.game-stage{position:relative;background:#070d1a;border:1px solid var(--line-2);border-radius:16px;overflow:hidden}
.game-stage canvas{display:block;width:100%;height:auto;touch-action:none}
.game-hud{position:absolute;top:12px;left:12px;right:12px;display:flex;justify-content:space-between;
  font-family:var(--mono);font-size:.82rem;color:var(--text-2);pointer-events:none;text-shadow:0 1px 4px #000}
.game-msg{position:absolute;inset:0;display:none;place-items:center;text-align:center;
  background:rgba(7,13,26,.82);backdrop-filter:blur(3px);z-index:5;padding:24px}
.game-msg.show{display:grid}
.game-msg h3{font-size:2rem}
.game-panel{padding:22px}
.game-panel h4{font-family:var(--sans);font-weight:700;font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin:0 0 14px}
.ctrl{margin-bottom:18px}
.ctrl label{display:flex;justify-content:space-between;font-size:.9rem;color:var(--text-2);margin-bottom:7px}
.ctrl label b{font-family:var(--mono);color:var(--blue-400);font-weight:500}
.ctrl input[type=range]{width:100%;accent-color:var(--blue)}
.btn-row{display:flex;gap:10px;flex-wrap:wrap}
.game-foot{margin-top:22px}

/* ============ Calculator ============ */
.calc-wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:24px;align-items:start}
@media(max-width:880px){.calc-wrap{grid-template-columns:1fr}}
.calc-panel{padding:26px}
.field{margin-bottom:18px}
.field label{display:block;font-size:.92rem;color:var(--text-2);margin-bottom:7px;font-weight:500}
.field .in{display:flex;border:1px solid var(--line-2);border-radius:10px;overflow:hidden;background:rgba(2,6,23,.5)}
.field input,.field select{flex:1;background:transparent;border:none;color:#fff;padding:.7rem .85rem;font-family:var(--mono);font-size:.98rem;outline:none;width:100%}
.field select{font-family:var(--sans)}
.field .unit{flex:none;display:grid;place-items:center;padding:0 .85rem;color:var(--muted);background:rgba(148,163,184,.06);border-left:1px solid var(--line-2);font-family:var(--mono);font-size:.85rem}
.field input:focus{outline:none}
.field .in:focus-within{border-color:var(--blue)}
.results{padding:26px;position:sticky;top:90px}
.result-row{display:flex;justify-content:space-between;align-items:baseline;padding:14px 0;border-bottom:1px solid var(--line)}
.result-row:last-child{border-bottom:none}
.result-row .k{color:var(--muted);font-size:.92rem}
.result-row .v{font-family:var(--mono);font-size:1.25rem;color:var(--blue-400);font-weight:500}
.result-row.primary .v{color:#fff;font-size:1.6rem}
.formula-box{background:rgba(2,6,23,.5);border:1px solid var(--line);border-radius:12px;padding:18px 20px;margin:18px 0;
  font-family:var(--mono);font-size:1.02rem;color:var(--text);overflow-x:auto}
.formula-box .lbl{font-family:var(--sans);font-size:.74rem;letter-spacing:.1em;text-transform:uppercase;color:var(--faint);margin-bottom:8px}

/* ============ Article (single) ============ */
.article-head{max-width:760px;margin:0 auto;padding:64px 0 26px;text-align:center}
.article-head .meta{display:flex;gap:14px;justify-content:center;align-items:center;flex-wrap:wrap;color:var(--faint);font-size:.9rem;margin-top:20px}
.article-head .meta .au{display:flex;align-items:center;gap:8px;color:var(--text-2)}
.article-head .meta .au img,.article-head .meta .au .av{width:30px;height:30px;border-radius:50%;background:var(--bg-4)}
.article-cover{max-width:980px;margin:8px auto 0;padding:0 24px}
.article-cover img{width:100%;border-radius:16px;border:1px solid var(--line)}
.prose{max-width:760px;margin:0 auto;padding:40px 24px 20px;font-size:1.12rem;line-height:1.85;color:var(--text-2)}
.prose h2{font-size:2rem;margin:1.8em 0 .5em;color:#fff}
.prose h3{font-size:1.4rem;margin:1.4em 0 .4em;color:#fff;font-family:var(--serif)}
.prose p{margin:0 0 1.2em}
.prose a{color:var(--blue-400);text-decoration:underline;text-underline-offset:3px}
.prose ul,.prose ol{margin:0 0 1.2em;padding-left:1.3em}
.prose li{margin:.4em 0}
.prose strong{color:var(--text)}
.prose code{font-family:var(--mono);background:rgba(2,6,23,.6);padding:.12em .4em;border-radius:5px;font-size:.92em;color:var(--blue-400)}
.prose blockquote{margin:1.5em 0;padding:16px 22px;border-left:3px solid var(--blue);background:rgba(59,130,246,.07);border-radius:0 10px 10px 0;color:var(--text)}
.prose .callout{background:rgba(245,158,11,.08);border:1px solid rgba(245,158,11,.22);border-radius:12px;padding:18px 22px;margin:1.6em 0}
.prose .callout .h{font-weight:700;color:var(--amber);margin-bottom:6px;display:flex;align-items:center;gap:8px}
.prose .formula{font-family:var(--mono);background:rgba(2,6,23,.5);border:1px solid var(--line);border-radius:12px;
  padding:20px;text-align:center;font-size:1.15rem;color:#fff;margin:1.5em 0;overflow-x:auto}
.prose table{width:100%;border-collapse:collapse;margin:1.5em 0;font-size:.96rem}
.prose th,.prose td{border:1px solid var(--line-2);padding:10px 14px;text-align:left}
.prose th{background:rgba(59,130,246,.1);color:#fff;font-family:var(--sans)}
.author-box{max-width:760px;margin:36px auto;padding:26px;display:flex;gap:18px;align-items:flex-start}
.author-box img,.author-box .av{width:64px;height:64px;border-radius:50%;flex:none;background:var(--bg-4)}
.author-box h4{font-family:var(--sans);font-weight:700;color:#fff;margin:0 0 4px}
.author-box p{color:var(--muted);font-size:.94rem;margin:0 0 10px}
.related{max-width:980px;margin:0 auto;padding:20px 24px 0}

/* ============ Blog index / archive ============ */
.blog-layout{display:grid;grid-template-columns:1fr 290px;gap:40px;align-items:start}
@media(max-width:900px){.blog-layout{grid-template-columns:1fr}}
.cat-pills{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-bottom:40px}
.cat-pills a{font-size:.88rem;padding:.5rem 1rem;border-radius:999px;border:1px solid var(--line-2);color:var(--text-2);transition:.15s}
.cat-pills a:hover,.cat-pills a.active{background:var(--blue-600);border-color:var(--blue-600);color:#fff}
.sidebar .widget{padding:22px;margin-bottom:22px}
.sidebar h4{font-family:var(--sans);font-weight:700;font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin:0 0 14px}
.sidebar a{display:block;color:var(--text-2);font-size:.92rem;padding:6px 0;border-bottom:1px solid var(--line)}
.sidebar a:last-child{border-bottom:none}
.sidebar a:hover{color:var(--blue-400)}

/* pagination */
.pagination{display:flex;gap:8px;justify-content:center;margin-top:46px;flex-wrap:wrap}
.pagination .page-numbers{padding:.5rem .9rem;border-radius:9px;border:1px solid var(--line-2);color:var(--text-2)}
.pagination .current{background:var(--blue-600);border-color:var(--blue-600);color:#fff}
.pagination a.page-numbers:hover{border-color:var(--blue-400);color:#fff}

/* contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:start}
@media(max-width:760px){.contact-grid{grid-template-columns:1fr}}
.form-field{margin-bottom:16px}
.form-field label{display:block;font-size:.9rem;color:var(--text-2);margin-bottom:6px}
.form-field input,.form-field textarea{width:100%;background:rgba(2,6,23,.5);border:1px solid var(--line-2);color:#fff;
  padding:.8rem 1rem;border-radius:10px;font-family:var(--sans);font-size:.97rem;outline:none}
.form-field input:focus,.form-field textarea:focus{border-color:var(--blue)}
.form-field textarea{min-height:140px;resize:vertical}

/* roadmap */
.timeline{max-width:760px;margin:0 auto;position:relative;padding-left:30px}
.timeline:before{content:"";position:absolute;left:7px;top:6px;bottom:6px;width:2px;background:var(--line-2)}
.tl-item{position:relative;margin-bottom:34px}
.tl-item:before{content:"";position:absolute;left:-30px;top:5px;width:16px;height:16px;border-radius:50%;
  background:var(--bg);border:3px solid var(--blue)}
.tl-item.done:before{background:var(--green);border-color:var(--green)}
.tl-item .ph{font-family:var(--mono);font-size:.78rem;color:var(--blue-400);letter-spacing:.08em}
.tl-item h3{margin:.2em 0 .3em}
.tl-item p{color:var(--muted);margin:0}

hr.div{border:none;border-top:1px solid var(--line);margin:0}