/*
Theme Name: AI and Tech Info
Description: Custom SaaS-style theme for AI and Tech Info, built from scratch.
Version: 2.0
Author: AI and Tech Info
*/

/* ============================================
   DESIGN TOKENS — "Instrument Panel" system
   ============================================ */
:root{
  --ink: #0E1116;
  --ink-2: #161B22;
  --ink-line: #262C36;
  --paper: #F6F5F1;
  --surface: #ffffff;
  --paper-line: #E3E1DA;
  --text: #12151B;
  --text-muted: #5B6172;
  --text-on-ink: #E9EAEC;
  --text-muted-on-ink: #8B909C;
  --signal-blue: #2547FF;
  --signal-amber: #FFB020;
  --signal-green: #2FAE64;
  --radius: 10px;
  --font-display: 'Fraunces', serif;
  --font-body: 'IBM Plex Sans', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
  --maxw: 1140px;
}

*{ box-sizing: border-box; }
body{
  margin:0;
  font-family: var(--font-body);
  color: var(--text);
  background: var(--paper);
  line-height: 1.6;
}
h1,h2,h3,h4,h5,h6{
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0 0 0.5em;
  color: var(--text);
}
a{ color: var(--signal-blue); text-decoration: none; }
a:hover{ color: var(--text); }
img{ max-width:100%; height:auto; display:block; }
.container{ max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

.mono-label{
  font-family: var(--font-mono); font-size:11.5px; letter-spacing:.08em;
  text-transform: uppercase; color: var(--text-muted);
}

/* ============================================
   HEADER — instrument strip
   ============================================ */
.site-header{
  background: var(--ink);
  border-bottom: 1px solid var(--ink-line);
  position: sticky; top:0; z-index: 100;
  background-image: radial-gradient(rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 14px 14px;
}
.site-header .container{
  display:flex; align-items:center; justify-content:space-between;
  padding-top:16px; padding-bottom:16px;
}
.site-branding{ display:flex; align-items:center; gap:10px; }
.site-branding img{ height:34px; width:auto; border-radius:6px; }
.site-title{
  font-family: var(--font-mono); font-weight:600; font-size:14px;
  letter-spacing:.02em; color: var(--text-on-ink); margin:0;
  display:flex; align-items:center; gap:8px;
}
.site-title::before{
  content:''; width:7px; height:7px; border-radius:50%;
  background: var(--signal-green);
  box-shadow: 0 0 0 3px rgba(47,174,100,0.18);
}
.site-title a{ color: var(--text-on-ink); }

.primary-nav ul{ list-style:none; display:flex; gap:30px; margin:0; padding:0; }
.primary-nav a{
  font-family: var(--font-mono); color: var(--text-muted-on-ink);
  font-weight:500; font-size:12.5px; letter-spacing:.04em; text-transform:uppercase;
}
.primary-nav a:hover{ color: var(--signal-amber); }

.menu-toggle{
  display:none; background:none; border:1px solid var(--ink-line);
  color: var(--text-on-ink); border-radius:6px; padding:8px 10px; cursor:pointer;
  align-items:center; justify-content:center;
}

.nav-backdrop{
  position:fixed; inset:0; background:rgba(0,0,0,0.55);
  opacity:0; pointer-events:none; transition:opacity .25s ease; z-index:150;
}
.nav-backdrop.open{ opacity:1; pointer-events:auto; }

@media (max-width: 860px){
  .primary-nav{
    position:fixed; top:0; right:0; height:100vh; width:min(300px, 82vw);
    background: var(--ink-2); border-left:1px solid var(--ink-line);
    transform:translateX(100%); transition:transform .28s ease; z-index:200;
    padding:22px 24px; overflow-y:auto; display:block;
  }
  .primary-nav.open{ transform:translateX(0); }
  .nav-drawer-head{
    display:flex; align-items:center; justify-content:space-between;
    margin-bottom:20px; padding-bottom:16px; border-bottom:1px solid var(--ink-line);
  }
  .nav-drawer-head span{ font-family:var(--font-mono); font-size:11px; letter-spacing:.08em; text-transform:uppercase; color:var(--text-muted-on-ink); }
  .nav-close{
    background:none; border:1px solid var(--ink-line); color:var(--text-on-ink);
    border-radius:6px; width:30px; height:30px; cursor:pointer; font-size:16px;
    display:flex; align-items:center; justify-content:center;
  }
  .primary-nav ul{ flex-direction:column; gap:0; padding:0; }
  .primary-nav a{ display:block; padding:15px 2px; border-bottom:1px solid var(--ink-line); font-size:13px; }
  .menu-toggle{ display:inline-block; }
  .site-header .container{ flex-wrap:wrap; }
}

/* ============================================
   BUTTONS — control-switch style, not pill-gradient
   ============================================ */
.btn{
  display:inline-flex; align-items:center; gap:8px;
  background: var(--ink); color: var(--text-on-ink) !important;
  border:1px solid var(--ink); border-radius: 6px; font-weight:600; font-size:14px;
  padding:12px 22px; cursor:pointer; transition: transform .12s ease, background .15s ease;
  font-family: var(--font-body);
}
.btn:hover{ background: var(--signal-blue); border-color: var(--signal-blue); transform: translateY(-1px); }
.btn.outline{
  background:transparent; color: var(--text-muted) !important;
  border:1px solid var(--paper-line); cursor:default;
}
.btn.outline:hover{ transform:none; background:transparent; }

/* ============================================
   HERO
   ============================================ */
.hero{
  background: var(--ink); color: var(--text-on-ink);
  padding: 76px 0 0; text-align:left;
  background-image: radial-gradient(rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 16px 16px;
}
.hero-inner{ max-width: 720px; }
.hero .mono-label{ color: var(--text-muted-on-ink); margin-bottom:20px; display:block; }
.hero h1{
  font-size: clamp(34px, 5.4vw, 56px); margin: 0 0 22px; color: var(--text-on-ink);
  line-height:1.05;
}
.hero h1 em{ font-style:italic; color: var(--signal-amber); }
.hero p{
  color: var(--text-muted-on-ink); max-width:520px; margin:0 0 34px; font-size:16.5px;
}

/* Signature element: status strip */
.status-strip{
  border-top: 1px solid var(--ink-line);
  margin-top: 56px;
  display:flex; overflow-x:auto;
}
.status-item{
  flex: 1; min-width:220px; padding: 16px 20px; border-right: 1px solid var(--ink-line);
  font-family: var(--font-mono); font-size:12px;
}
.status-item:last-child{ border-right:none; }
.status-item .name{ color: var(--text-muted-on-ink); letter-spacing:.04em; text-transform:uppercase; font-size:11px; }
.status-item .state{ display:flex; align-items:center; gap:7px; margin-top:6px; color: var(--text-on-ink); font-size:13px; }
.status-item .dot{ width:6px; height:6px; border-radius:50%; }
.status-item .dot.on{ background: var(--signal-green); box-shadow: 0 0 0 3px rgba(47,174,100,0.18); }
.status-item .dot.build{ background: var(--signal-amber); box-shadow: 0 0 0 3px rgba(255,176,32,0.18); }

/* ============================================
   TOOL GRID — spec-plate cards
   ============================================ */
.section{ padding: 64px 0; }
.section-head{ margin-bottom: 32px; max-width:560px; }
.section-head .mono-label{ margin-bottom:10px; display:block; }
.section-head h2{ font-size: 28px; margin-bottom:8px; }
.section-head p{ color: var(--text-muted); margin:0; font-size:15px; }

.tool-grid{ display:grid; grid-template-columns: repeat(3,1fr); gap:1px; background: var(--paper-line); border:1px solid var(--paper-line); }
@media (max-width:900px){ .tool-grid{ grid-template-columns: repeat(2,1fr); } }
@media (max-width:620px){ .tool-grid{ grid-template-columns: 1fr; } }
.tool-card{
  background:var(--surface); padding:26px; text-align:left; position:relative;
}
.tool-card .plate-id{
  font-family: var(--font-mono); font-size:11px; color: var(--text-muted);
  display:flex; align-items:center; gap:7px; margin-bottom:18px; letter-spacing:.04em;
}
.tool-card .plate-id .dot{ width:6px;height:6px;border-radius:50%; }
.tool-card .plate-id .dot.on{ background:var(--signal-green); }
.tool-card .plate-id .dot.build{ background:var(--signal-amber); }
.tool-icon{
  width:44px; height:44px; border-radius:8px; background: var(--paper);
  border:1px solid var(--paper-line); color: var(--text);
  display:flex; align-items:center; justify-content:center; margin-bottom:16px;
}
.tool-card h3{ font-size:19px; margin-bottom:8px; font-weight:600; }
.tool-card p{ color: var(--text-muted); font-size:14px; margin-bottom:22px; line-height:1.55; }
.tool-card.disabled .tool-icon{ opacity:.5; }
.tool-card.disabled h3{ color: var(--text-muted); }

/* ============================================
   VALUE PROP
   ============================================ */
.value-grid{ display:grid; grid-template-columns: repeat(3,1fr); gap:0; border-top:1px solid var(--paper-line); }
@media (max-width:700px){ .value-grid{ grid-template-columns:1fr; } }
.value-card{ padding: 26px 24px 26px 0; border-right:1px solid var(--paper-line); }
.value-card:last-child{ border-right:none; }
@media (max-width:700px){ .value-card{ border-right:none; border-bottom:1px solid var(--paper-line); padding:22px 0; } }
.value-card .mono-label{ margin-bottom:10px; display:block; }
.value-card h3{ font-size:17px; margin-bottom:8px; }
.value-card p{ color: var(--text-muted); font-size:14px; margin:0; }

/* ============================================
   POST GRID (blog, if used)
   ============================================ */
.post-grid{ display:grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background:var(--paper-line); border:1px solid var(--paper-line); }
@media (max-width: 900px){ .post-grid{ grid-template-columns: repeat(2,1fr); } }
@media (max-width: 620px){ .post-grid{ grid-template-columns: 1fr; } }
.post-card{ background:var(--surface); overflow:hidden; }
.post-card .thumb{ aspect-ratio: 16/10; background: var(--paper); overflow:hidden; }
.post-card .thumb img{ width:100%; height:100%; object-fit:cover; }
.post-card .body{ padding: 20px 22px 24px; }
.post-card .tag{
  font-family: var(--font-mono); color: var(--text-muted);
  font-size:11px; text-transform:uppercase; letter-spacing:.05em; margin-bottom:12px; display:block;
}
.post-card h3{ font-size:17px; margin-bottom:8px; line-height:1.35; font-weight:600; }
.post-card h3 a{ color: var(--text); }
.post-card h3 a:hover{ color: var(--signal-blue); }
.post-card .excerpt{ color: var(--text-muted); font-size:14px; margin-bottom:0; }
.post-card .meta{ font-family: var(--font-mono); display:flex; gap:14px; color: var(--text-muted); font-size:11.5px; margin-top:14px; }

/* ============================================
   SINGLE POST / PAGE
   ============================================ */
.entry-header{ padding: 50px 0 24px; background: var(--ink); color: var(--text-on-ink); }
.entry-header .tag{
  font-family: var(--font-mono); color: var(--signal-amber);
  font-size:11.5px; text-transform:uppercase; letter-spacing:.06em; margin-bottom:18px; display:block;
}
.entry-header h1{ font-size: clamp(26px,4vw,38px); max-width:760px; color: var(--text-on-ink); }
.entry-meta{ font-family: var(--font-mono); color: var(--text-muted-on-ink); font-size:12px; display:flex; gap:18px; flex-wrap:wrap; margin-top:16px; }

.entry-content{
  max-width: 720px; margin: 0 auto; padding: 44px 20px 70px; font-size:16.5px;
}
.entry-content p{ margin: 0 0 1.3em; }
.entry-content h2{ font-size:24px; margin-top:1.6em; }
.entry-content h3{ font-size:20px; margin-top:1.4em; }
.entry-content img{ border-radius: var(--radius); margin: 1.5em 0; }
.entry-content a{ text-decoration: underline; }
.entry-content blockquote{
  border-left:2px solid var(--signal-blue); margin:1.6em 0; padding: 4px 0 4px 20px;
  color: var(--text-muted); font-style:italic;
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer{
  background: var(--ink); color: var(--text-muted-on-ink); padding: 56px 0 30px;
  background-image: radial-gradient(rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 14px 14px;
}
.footer-grid{ display:grid; grid-template-columns: 2fr 1fr 1fr; gap:32px; margin-bottom:40px; }
@media (max-width: 700px){ .footer-grid{ grid-template-columns: 1fr; } }
.site-footer h4{
  font-family: var(--font-mono); color: var(--text-on-ink); font-size:12px;
  text-transform:uppercase; letter-spacing:.07em; margin-bottom:16px;
}
.footer-widget ul{ list-style:none; margin:0; padding:0; }
.footer-widget li{ margin-bottom:11px; }
.footer-widget a{ color: var(--text-muted-on-ink); font-size:14px; }
.footer-widget a:hover{ color: var(--signal-amber); }
.footer-bottom{
  border-top:1px solid var(--ink-line); padding-top:22px; font-family: var(--font-mono);
  font-size:11.5px; text-align:center; color: var(--text-muted-on-ink); letter-spacing:.03em;
}

/* ============================================
   AD SLOTS
   ============================================ */
.ad-slot{
  max-width: var(--maxw); margin: 30px auto; padding: 0 20px;
  display:flex; align-items:center; justify-content:center; min-height:1px;
}
.ad-slot:empty{ display:none; }

/* ============================================
   PAGINATION
   ============================================ */
.pagination{ display:flex; gap:10px; justify-content:center; margin-top:40px; font-family: var(--font-mono); }
.pagination a, .pagination span{
  padding:8px 14px; border:1px solid var(--paper-line); border-radius:6px; font-size:13px; color: var(--text);
}
.pagination .current{ background: var(--ink); color: var(--text-on-ink); border-color: var(--ink); font-weight:600; }

@media (max-width: 768px){
  .entry-title{ font-size: 1.6rem !important; }
}