/* ============================================================
   MobileZone / AgentLab — Editorial magazine theme
   tech site: light editorial · ai site: dark indigo (via data-theme)
   ============================================================ */
:root {
  --primary: #2456e6;
  --secondary: #7c3aed;
  --accent: #f59f00;
  --radius: 14px;
  --radius-sm: 10px;
  --font: 'Rubik', 'Heebo', system-ui, -apple-system, sans-serif;
  --serif: 'Frank Ruhl Libre', Georgia, serif;
  --mono: 'JetBrains Mono', 'Rubik', monospace;
}

/* ---------- Theme: LIGHT (default, tech site) ---------- */
body[data-theme="light"] {
  --bg: #fafbfd;
  --bg2: #ffffff;
  --bg3: #f2f4f9;
  --card: #ffffff;
  --card-hover: #ffffff;
  --border: #e4e8f1;
  --border-strong: #cdd4e2;
  --text: #1a2030;
  --heading: #10141f;
  --muted: #66708a;
  --primary-contrast: #ffffff;
  --shadow-card: 0 1px 2px rgba(16, 24, 40, .05), 0 10px 28px rgba(16, 24, 40, .07);
  --shadow-card-hover: 0 2px 4px rgba(16, 24, 40, .06), 0 18px 44px rgba(16, 24, 40, .13);
}

/* ---------- Theme: DARK (ai site) ---------- */
body[data-theme="dark"] {
  --bg: #0f1424;
  --bg2: #151b30;
  --bg3: #1a2138;
  --card: #171e35;
  --card-hover: #1b2340;
  --border: #262f4d;
  --border-strong: #33406a;
  --text: #e7ebf7;
  --heading: #f5f7ff;
  --muted: #97a0bd;
  --primary-contrast: #0b1020;
  --shadow-card: 0 1px 2px rgba(0, 0, 0, .25), 0 14px 34px rgba(0, 0, 0, .28);
  --shadow-card-hover: 0 2px 6px rgba(0, 0, 0, .3), 0 22px 52px rgba(0, 0, 0, .4);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.8;
  overflow-x: hidden;
  min-height: 100vh;
  font-size: 16.5px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; }
a { color: var(--primary); text-decoration: none; transition: color .18s; }
a:hover { color: var(--accent); }
h1, h2, h3, h4 { color: var(--heading); }
::selection { background: var(--primary); color: var(--primary-contrast); }

::-webkit-scrollbar { width: 11px; height: 11px; }
::-webkit-scrollbar-track { background: var(--bg3); }
::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 8px; border: 2px solid var(--bg3); }
::-webkit-scrollbar-thumb:hover { background: var(--primary); }

/* legacy ambience elements — kept in markup, rendered subtle or hidden */
.bg-grid, .scanlines { display: none; }
.bg-glow {
  position: fixed; z-index: -1; border-radius: 50%; filter: blur(120px); pointer-events: none; opacity: .10;
}
body[data-theme="light"] .bg-glow { opacity: .07; }
.bg-glow-a { width: 44vw; height: 44vw; background: var(--secondary); top: -16vw; inset-inline-start: -12vw; }
.bg-glow-b { width: 38vw; height: 38vw; background: var(--primary); bottom: -14vw; inset-inline-end: -10vw; }
.reading-progress {
  position: fixed; top: 0; inset-inline-start: 0; height: 3px; width: 0;
  background: var(--primary); z-index: 200;
}

.container { max-width: 1200px; margin-inline: auto; padding-inline: 22px; }
.narrow { max-width: 800px; }

/* ---------- Top strip ---------- */
.topstrip {
  background: var(--heading); color: rgba(255, 255, 255, .92);
  font-size: .78rem; letter-spacing: .3px;
}
.topstrip .container { display: flex; justify-content: space-between; gap: 16px; padding-block: 7px; flex-wrap: wrap; }
.topstrip b { color: #fff; }
.topstrip .ts-right { opacity: .85; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: color-mix(in srgb, var(--bg2) 88%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav { display: flex; align-items: center; gap: 22px; padding-block: 15px; }
.brand { display: flex; align-items: center; gap: 11px; }
.brand-mark { display: grid; place-items: center; width: 42px; height: 42px; border-radius: 12px; background: var(--heading); }
.brand-mark :is(svg, img) { width: 26px; height: 26px; }
.brand-text { font-size: 1.42rem; font-weight: 800; letter-spacing: -.3px; color: var(--heading); white-space: nowrap; font-family: var(--serif); }
.brand-text.big { font-size: 1.6rem; }

.nav-links { display: flex; align-items: center; gap: 4px; list-style: none; margin-inline-start: auto; }
.nav-links > li > a { display: block; padding: 9px 15px; border-radius: 9px; color: var(--text); font-weight: 500; font-size: .95rem; }
.nav-links > li > a:hover { color: var(--primary); background: var(--bg3); }
.nav-search { font-size: .86rem !important; border: 1px solid var(--border) !important; color: var(--muted) !important; }
.lang-switch {
  font-size: .82rem; font-weight: 600; padding: 8px 16px; cursor: pointer;
  color: var(--primary); background: transparent; border: 1.5px solid var(--primary); border-radius: 999px;
  transition: all .18s; font-family: var(--font);
}
.lang-switch:hover { background: var(--primary); color: var(--primary-contrast); }

.nav-toggle { display: none; flex-direction: column; gap: 5.5px; background: none; border: 0; cursor: pointer; padding: 8px; margin-inline-start: auto; }
.nav-toggle span { width: 26px; height: 2.5px; background: var(--heading); border-radius: 2px; transition: .25s; }
.nav-toggle.open span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

.nav-drop { position: relative; }
.drop-menu {
  position: absolute; top: calc(100% + 8px); inset-inline-start: 0; min-width: 220px; list-style: none;
  background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 8px;
  opacity: 0; visibility: hidden; transform: translateY(8px); transition: .2s;
  box-shadow: var(--shadow-card); z-index: 20;
}
.nav-drop:hover .drop-menu, .nav-drop.open-drop .drop-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.drop-menu a { display: block; padding: 9px 12px; border-radius: 8px; font-size: .9rem; color: var(--text); }
.drop-menu a:hover { background: var(--bg3); color: var(--primary); }
.drop-menu a::before { content: '• '; color: var(--cat, var(--primary)); }
.caret { display: inline-block; width: 7px; height: 7px; border-inline-end: 2px solid currentColor; border-bottom: 2px solid currentColor; transform: rotate(45deg) translateY(-2px); margin-inline-start: 6px; }

/* ---------- Hero ---------- */
.hero { position: relative; padding: 84px 0 64px; overflow: hidden; }
.hero-inner { text-align: center; position: relative; z-index: 1; max-width: 860px; margin-inline: auto; }
.hero-badge {
  display: inline-block; font-size: .78rem; font-weight: 600; letter-spacing: 2.5px; color: var(--primary);
  text-transform: uppercase; margin-bottom: 24px; position: relative; padding-bottom: 10px;
}
.hero-badge::after { content: ''; position: absolute; bottom: 0; inset-inline-start: 50%; transform: translateX(50%); width: 44px; height: 3px; border-radius: 3px; background: var(--accent); }
.hero-title {
  font-family: var(--serif); font-size: clamp(2.4rem, 5.5vw, 4rem); font-weight: 900; line-height: 1.18; letter-spacing: -.5px;
  color: var(--heading); text-wrap: balance;
}
.hero-title .hero-title-accent, .hero-title[data-text] { /* no special fx */ }
.hero-sub { margin: 22px auto 0; color: var(--muted); font-size: 1.15rem; max-width: 680px; }
.hero-cta { display: flex; gap: 14px; justify-content: center; margin-top: 34px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: clamp(28px, 7vw, 96px); justify-content: center; margin-top: 56px; flex-wrap: wrap; }
.stat b { display: block; font-size: clamp(1.7rem, 3.2vw, 2.4rem); font-weight: 800; color: var(--heading); font-family: var(--serif); }
.stat span { color: var(--muted); font-size: .82rem; letter-spacing: 1.5px; text-transform: uppercase; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block; font-family: var(--font); font-weight: 600; font-size: .95rem; cursor: pointer;
  padding: 12px 26px; border-radius: 10px; border: 1.5px solid transparent; transition: all .18s; line-height: 1.2;
}
.btn-lg { padding: 15px 32px; font-size: 1.02rem; }
.btn-sm { padding: 8px 16px; font-size: .85rem; border-radius: 8px; }
.btn-glow { background: var(--primary); color: var(--primary-contrast) !important; }
.btn-glow:hover { background: var(--heading); color: var(--bg2) !important; transform: translateY(-1px); }
.btn-ghost { background: transparent; color: var(--text) !important; border-color: var(--border-strong); }
.btn-ghost:hover { border-color: var(--primary); color: var(--primary) !important; transform: translateY(-1px); }

/* ---------- Sections ---------- */
.section { padding: 44px 0 14px; }
.section-head { display: flex; align-items: center; gap: 18px; margin-bottom: 30px; }
.section-title { font-family: var(--serif); font-size: clamp(1.5rem, 3vw, 2.1rem); font-weight: 800; white-space: nowrap; }
.section-title.small { font-size: 1.45rem; }
.sec-num { font-size: .72rem; font-weight: 700; color: var(--accent); letter-spacing: 2px; vertical-align: super; font-family: var(--font); }
.sec-line { flex: 1; height: 1px; background: var(--border); }
.section-sub { color: var(--muted); margin: -16px 0 26px; }

/* ---------- Cards ---------- */
.grid { display: grid; gap: 24px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.post-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden;
  display: flex; flex-direction: column; box-shadow: var(--shadow-card);
  transition: transform .22s, box-shadow .22s, border-color .22s;
}
.post-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); border-color: var(--border-strong); }
.card-cover { position: relative; display: block; aspect-ratio: 16/9; overflow: hidden; background: var(--bg3); }
.card-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .45s; }
.post-card:hover .card-cover img { transform: scale(1.04); }
.card-cat {
  position: absolute; top: 12px; inset-inline-start: 12px; font-size: .72rem; font-weight: 700; letter-spacing: .4px;
  padding: 5px 12px; border-radius: 999px; color: #fff;
  background: color-mix(in srgb, var(--cat, var(--primary)) 82%, #000 18%);
}
.card-featured {
  position: absolute; top: 12px; inset-inline-end: 12px; font-size: .72rem; font-weight: 700; padding: 5px 12px;
  border-radius: 999px; background: var(--heading); color: var(--bg2);
}
.card-body { padding: 20px 22px 18px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.card-title { font-size: 1.14rem; font-weight: 700; line-height: 1.45; font-family: var(--serif); }
.card-title a { color: var(--heading); }
.card-title a:hover { color: var(--primary); }
.card-excerpt { color: var(--muted); font-size: .9rem; flex: 1; line-height: 1.7; }
.card-meta { display: flex; gap: 8px; align-items: center; font-size: .76rem; color: var(--muted); }
.meta-dot { opacity: .5; }

/* ---------- Category tiles ---------- */
.cat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.cat-tile {
  display: flex; flex-direction: column; align-items: center; gap: 10px; text-align: center; padding: 28px 14px 22px;
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); color: var(--text);
  position: relative; overflow: hidden; transition: .2s; box-shadow: var(--shadow-card);
}
.cat-tile::before { content: ''; position: absolute; top: 0; inset-inline: 0; height: 3px; background: var(--cat, var(--primary)); opacity: .9; }
.cat-tile:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); }
.cat-icon { width: 54px; height: 54px; padding: 11px; border-radius: 50%; border: 1px solid var(--border); background: var(--bg3); }
.cat-name { font-weight: 700; color: var(--heading); }
.cat-count { font-size: .74rem; color: var(--muted); }

/* ---------- Tools ---------- */
.tool-tile {
  display: flex; flex-direction: column; gap: 8px; padding: 22px; border: 1px solid var(--border);
  border-radius: var(--radius-sm); background: var(--card); color: var(--text); transition: .2s; box-shadow: var(--shadow-card);
}
.tool-tile:hover { border-color: var(--primary); transform: translateY(-3px); box-shadow: var(--shadow-card-hover); }
.tool-icon { width: 46px; height: 46px; display: inline-grid; place-items: center; padding: 9px; color: var(--primary); border: 1px solid var(--border); border-radius: 11px; background: var(--bg3); }
.tool-icon.big { width: 64px; height: 64px; padding: 13px; }
.tool-icon svg { width: 100%; height: 100%; }
.tool-name { font-weight: 700; color: var(--heading); }
.tool-desc { color: var(--muted); font-size: .8rem; }
.tool-card { padding: 26px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--card); display: flex; flex-direction: column; gap: 12px; box-shadow: var(--shadow-card); }
.tool-card-head { display: flex; align-items: center; gap: 14px; }
.tool-card-head h3 { font-size: 1.15rem; font-family: var(--serif); }
.tool-hero { text-align: center; padding: 52px 0 10px; }
.tool-hero h1 { font-size: clamp(1.7rem, 4vw, 2.5rem); margin: 16px 0 8px; font-family: var(--serif); }
.tool-hero p { color: var(--muted); max-width: 620px; margin-inline: auto; }
.tool-embed-wrap { max-width: 840px; margin-inline: auto; }

.tool-embed {
  margin: 38px 0; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden;
  background: var(--card); box-shadow: var(--shadow-card);
}
.tool-embed-head { display: flex; align-items: center; gap: 14px; padding: 16px 20px; border-bottom: 1px solid var(--border); background: var(--bg3); }
.tool-embed-head b { display: block; font-size: 1.02rem; color: var(--heading); }
.tool-embed-head span { display: block; color: var(--muted); font-size: .8rem; }
.tool-body { padding: 22px; display: flex; flex-direction: column; gap: 14px; }
.tool-body label { display: flex; flex-direction: column; gap: 7px; font-size: .85rem; font-weight: 600; color: var(--text); }
.tool-body input, .tool-body select, .tool-body textarea {
  font-family: var(--font); font-size: .95rem; color: var(--text); background: var(--bg2);
  border: 1px solid var(--border-strong); border-radius: 9px; padding: 10px 13px; outline: none; width: 100%;
}
body[data-theme="dark"] .tool-body input, body[data-theme="dark"] .tool-body select, body[data-theme="dark"] .tool-body textarea { background: var(--bg); }
.tool-body input:focus, .tool-body select:focus, .tool-body textarea:focus { border-color: var(--primary); }
.tool-body textarea { resize: vertical; font-family: var(--mono); font-size: .82rem; direction: ltr; text-align: left; }
.tc-grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.tc-grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.tc-row { display: flex; align-items: end; gap: 12px; flex-wrap: wrap; }
.tc-row label { flex: 1; min-width: 200px; }
.tc-vs { font-weight: 800; color: var(--accent); padding-bottom: 12px; }
.btn-row { display: flex; gap: 10px; flex-wrap: wrap; }
.tool-result { display: none; }
.tool-result.show { display: block; animation: fadeIn .3s; padding: 18px; border-radius: 10px; background: var(--bg3); border: 1px solid var(--border); }
.tr-big { font-size: 1.6rem; font-weight: 800; color: var(--primary); margin-bottom: 6px; font-family: var(--serif); }
.tr-ok { color: #12a670; }
body[data-theme="dark"] .tr-ok { color: #34d399; }
.tr-err { color: #d64560; }
body[data-theme="dark"] .tr-err { color: #f8718d; }
.tr-note { color: var(--muted); font-size: .78rem; margin-top: 8px; }
.tr-line { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 10px 12px; border: 1px solid var(--border); border-radius: 8px; margin-bottom: 8px; background: var(--card); }
.tr-line.best { border-color: var(--tr-ok-c, #12a670); box-shadow: 0 0 0 1px rgba(18, 166, 112, .25); }
.tr-badge { color: #12a670; font-size: .75rem; font-weight: 700; }
body[data-theme="dark"] .tr-badge { color: #34d399; }
.tr-bar { height: 10px; background: var(--bg2); border: 1px solid var(--border); border-radius: 999px; overflow: hidden; margin-top: 10px; }
.tr-bar span { display: block; height: 100%; background: var(--primary); transition: width .5s; }
.tr-pre {
  font-family: var(--mono); font-size: .78rem; line-height: 1.7; white-space: pre-wrap; word-break: break-word;
  background: var(--bg3); border: 1px solid var(--border); border-radius: 10px; padding: 16px; direction: ltr; text-align: left;
  max-height: 420px; overflow: auto; margin-bottom: 10px;
}
.cmp-table { width: 100%; border-collapse: collapse; font-size: .84rem; }
.cmp-table th, .cmp-table td { padding: 9px 11px; border-bottom: 1px solid var(--border); text-align: start; }
.cmp-table thead th { color: var(--primary); font-size: .74rem; text-transform: uppercase; letter-spacing: 1px; }
.cmp-table tbody tr:hover { background: var(--bg3); }
.regex-hl { font-family: var(--mono); font-size: .82rem; direction: ltr; text-align: left; background: var(--bg3); padding: 14px; border-radius: 10px; border: 1px solid var(--border); }
.regex-hl mark { background: color-mix(in srgb, var(--accent) 35%, transparent); color: inherit; padding: 1px 3px; border-radius: 3px; }
.quiz-wrap { display: flex; flex-direction: column; gap: 16px; }
.quiz-q b { font-size: .95rem; color: var(--heading); }
.quiz-opts { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; margin-top: 10px; }
.quiz-opt { font-size: .85rem; padding: 10px 14px; cursor: pointer; color: var(--text); background: var(--bg2); border: 1px solid var(--border-strong); border-radius: 9px; transition: .16s; text-align: start; font-family: var(--font); }
.quiz-opt:hover { border-color: var(--primary); }
.quiz-opt.sel { border-color: #12a670; background: color-mix(in srgb, #12a670 8%, var(--bg2)); }
.mm-table { overflow-x: auto; }

@keyframes fadeIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; } }

/* ---------- Newsletter ---------- */
.newsletter { padding: 56px 0 66px; }
.nl-inner {
  border: 1px solid var(--border); border-radius: var(--radius); padding: 44px 36px; text-align: center;
  background: var(--card); position: relative; overflow: hidden; box-shadow: var(--shadow-card);
}
.nl-inner::before { content: ''; position: absolute; top: 0; inset-inline: 0; height: 4px; background: linear-gradient(90deg, var(--primary), var(--accent)); }
.nl-text h3 { font-size: 1.6rem; font-weight: 800; font-family: var(--serif); }
.nl-text p { color: var(--muted); margin-top: 8px; }
.nl-form { display: flex; gap: 10px; justify-content: center; max-width: 470px; margin: 24px auto 10px; }
.nl-form input {
  flex: 1; font-family: var(--font); background: var(--bg2); border: 1px solid var(--border-strong); color: var(--text);
  border-radius: 10px; padding: 12px 16px; outline: none;
}
body[data-theme="dark"] .nl-form input { background: var(--bg); }
.nl-form input:focus { border-color: var(--primary); }
.nl-note { font-size: .74rem; color: var(--muted); }
.nl-msg { margin-top: 10px; font-weight: 600; }
.nl-msg.ok { color: #12a670; }
.nl-msg.err { color: #d64560; }
body[data-theme="dark"] .nl-msg.ok { color: #34d399; }
body[data-theme="dark"] .nl-msg.err { color: #f8718d; }
.nl-side .nl-inner { padding: 26px; }

/* ---------- Single post ---------- */
.single-wrap { padding: 30px 22px 60px; }
.breadcrumbs { font-size: .8rem; color: var(--muted); display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 26px; }
.crumb-here { color: var(--text); }
.single-grid { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 48px; align-items: start; }
.post-cat-chip {
  display: inline-block; font-size: .75rem; font-weight: 700; padding: 6px 14px; border-radius: 999px; margin-bottom: 16px;
  color: #fff; background: color-mix(in srgb, var(--cat, var(--primary)) 82%, #000 18%);
}
.post-title { font-family: var(--serif); font-size: clamp(1.8rem, 4.2vw, 2.8rem); font-weight: 900; line-height: 1.25; text-wrap: balance; margin-bottom: 16px; }
.post-meta { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; color: var(--muted); font-size: .82rem; }
.pm-sep { opacity: .4; }
.post-cover { margin: 28px 0; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); box-shadow: var(--shadow-card); }
.post-content { font-size: 1.07rem; }
.post-content > p { margin-bottom: 22px; }
.post-content h2 {
  font-family: var(--serif); font-size: 1.6rem; font-weight: 800; margin: 46px 0 16px; position: relative;
  padding-bottom: 12px; border-bottom: 1px solid var(--border); text-wrap: balance;
}
.post-content h3 { font-size: 1.22rem; font-weight: 700; margin: 30px 0 12px; color: var(--heading); }
.post-content h4 { font-size: 1.05rem; margin: 24px 0 10px; color: var(--heading); }
.post-content ul, .post-content ol { margin: 0 0 22px; padding-inline-start: 26px; }
.post-content li { margin-bottom: 9px; }
.post-content li::marker { color: var(--primary); font-weight: 700; }
.post-content strong { color: var(--heading); }
.post-content table { width: 100%; border-collapse: collapse; margin: 26px 0; font-size: .9rem; border: 1px solid var(--border); border-radius: 12px; overflow: hidden; }
.post-content th { background: var(--bg3); color: var(--heading); font-size: .78rem; text-transform: uppercase; letter-spacing: .6px; }
.post-content th, .post-content td { padding: 11px 14px; border-bottom: 1px solid var(--border); text-align: start; }
.post-content tbody tr:last-child td { border-bottom: 0; }
.post-content tbody tr:hover { background: var(--bg3); }
.post-content pre {
  background: var(--bg3); border: 1px solid var(--border); border-radius: 12px; padding: 18px 20px; overflow-x: auto;
  direction: ltr; text-align: left; margin: 26px 0;
}
.post-content code { font-family: var(--mono); font-size: .85em; color: var(--primary); background: var(--bg3); padding: 2px 7px; border-radius: 6px; }
.post-content pre code { color: var(--text); background: none; padding: 0; font-size: .84rem; line-height: 1.75; }
.post-content blockquote {
  border-inline-start: 3px solid var(--accent); padding: 14px 22px; margin: 26px 0; border-radius: 8px;
  background: var(--bg3); color: var(--muted); font-style: italic;
}
.post-content .faq { margin: 44px 0 30px; padding-top: 30px; border-top: 2px solid var(--border); }
.post-content .faq-item { border: 1px solid var(--border); border-radius: 12px; padding: 16px 20px; margin-bottom: 12px; background: var(--card); transition: border-color .2s; }
.post-content .faq-item:hover { border-color: var(--border-strong); }
.post-content .faq-item h3 { font-size: 1.06rem !important; margin: 0 !important; border: none !important; padding: 0 !important; font-family: var(--font); }
.faq-item p { margin: 8px 0 0; color: var(--muted); font-size: .95rem; }

.post-tags { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin: 36px 0; }
.tags-label { color: var(--muted); font-size: .85rem; }
.tag-chip { font-size: .78rem; font-weight: 600; padding: 5px 13px; border-radius: 999px; border: 1px solid var(--border-strong); color: var(--muted); }
.tag-chip:hover { border-color: var(--primary); color: var(--primary); }

.share-row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; padding: 22px 0; border-block: 1px solid var(--border); }
.share-label { font-weight: 700; font-size: .9rem; color: var(--heading); }
.share-btn { font-size: .8rem; font-weight: 600; padding: 8px 16px; border-radius: 999px; border: 1px solid var(--border-strong); color: var(--text); transition: .18s; }
.sh-wa { border-color: #1faa53; color: #1faa53; }
.sh-wa:hover { background: #1faa53; color: #fff; }
.sh-tg { border-color: #1e8cc8; color: #1e8cc8; }
.sh-tg:hover { background: #1e8cc8; color: #fff; }
.sh-x, .sh-fb, .sh-copy { border-color: var(--border-strong); }
.sh-x:hover, .sh-fb:hover, .sh-copy:hover { border-color: var(--primary); color: var(--primary); }

.author-box { display: flex; gap: 16px; align-items: center; padding: 22px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--card); margin: 32px 0; }
.author-avatar {
  width: 56px; height: 56px; border-radius: 50%; display: grid; place-items: center; flex-shrink: 0;
  font-size: 1.4rem; font-weight: 800; color: var(--primary-contrast); background: var(--primary);
}
.author-box b { color: var(--heading); }
.author-box p { color: var(--muted); font-size: .86rem; margin-top: 4px; }
.related { margin-top: 28px; }

/* Sidebar */
.single-side { position: sticky; top: 96px; display: flex; flex-direction: column; gap: 20px; }
.toc-box { border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--card); padding: 20px; box-shadow: var(--shadow-card); }
.toc-box h4 { font-size: .78rem; letter-spacing: 2px; color: var(--primary); margin-bottom: 12px; text-transform: uppercase; }
.toc-box ol { padding-inline-start: 18px; font-size: .84rem; }
.toc-box li { margin-bottom: 8px; }
.toc-box a { color: var(--muted); }
.toc-box a:hover, .toc-box a.active { color: var(--primary); font-weight: 600; }
.side-tool-cta { border: 1px solid var(--border); border-top: 3px solid var(--primary); border-radius: var(--radius-sm); padding: 20px; text-align: center; background: var(--card); box-shadow: var(--shadow-card); }
.side-tool-cta b { display: block; margin-bottom: 6px; color: var(--heading); }
.side-tool-cta p { color: var(--muted); font-size: .8rem; margin-bottom: 12px; }
.side-popular { border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--card); padding: 20px; box-shadow: var(--shadow-card); }
.side-popular h4 { font-size: .78rem; letter-spacing: 2px; color: var(--primary); margin-bottom: 12px; text-transform: uppercase; }
.pop-item { display: flex; gap: 12px; align-items: baseline; padding: 9px 0; border-bottom: 1px dashed var(--border); color: var(--text); font-size: .84rem; line-height: 1.5; }
.pop-item:last-child { border-bottom: 0; }
.pop-item:hover { color: var(--primary); }
.pop-num { font-weight: 800; color: var(--primary); font-size: .95rem; }

/* ---------- Category / search ---------- */
.cat-hero {
  text-align: center; padding: 48px 24px; border: 1px solid var(--border); border-radius: var(--radius);
  margin-bottom: 34px; background: var(--card); box-shadow: var(--shadow-card); position: relative; overflow: hidden;
}
.cat-hero::before { content: ''; position: absolute; top: 0; inset-inline: 0; height: 4px; background: var(--cat, var(--primary)); }
.cat-hero .cat-icon { margin-inline: auto; }
.cat-hero h1 { font-size: clamp(1.7rem, 4vw, 2.5rem); margin: 14px 0 8px; font-family: var(--serif); }
.cat-hero p { color: var(--muted); max-width: 620px; margin-inline: auto; }
.cat-hero-count { display: inline-block; margin-top: 14px; font-size: .8rem; color: var(--primary); border: 1px solid var(--border-strong); padding: 5px 14px; border-radius: 999px; }
.tag-hash { color: var(--accent); }
.empty-note { color: var(--muted); text-align: center; padding: 40px 0; font-size: 1.05rem; }

/* ---------- Pagination ---------- */
.pagination { display: flex; gap: 8px; justify-content: center; align-items: center; margin: 44px 0; flex-wrap: wrap; }
.page-link { font-size: .85rem; padding: 9px 16px; border: 1px solid var(--border-strong); border-radius: 9px; color: var(--text); }
.page-link:hover { border-color: var(--primary); color: var(--primary); }
.page-link.active { background: var(--primary); color: var(--primary-contrast); border-color: var(--primary); font-weight: 700; }
.page-link.disabled { opacity: .35; pointer-events: none; }
.page-dots { color: var(--muted); }

/* ---------- Pages / contact ---------- */
.page-title { font-family: var(--serif); font-size: clamp(1.9rem, 4vw, 2.7rem); font-weight: 900; margin: 46px 0 26px; }
.contact-form { display: flex; flex-direction: column; gap: 16px; max-width: 560px; margin-top: 30px; }
.contact-form label { display: flex; flex-direction: column; gap: 7px; font-weight: 600; font-size: .92rem; }
.contact-form input, .contact-form textarea { font-family: var(--font); background: var(--card); border: 1px solid var(--border-strong); border-radius: 10px; padding: 12px 15px; color: var(--text); outline: none; }
.contact-form input:focus, .contact-form textarea:focus { border-color: var(--primary); }

/* ---------- 404 ---------- */
.center-404 { text-align: center; padding: 90px 22px; }
.err-code { font-family: var(--serif); font-size: clamp(5rem, 18vw, 10rem); font-weight: 900; line-height: 1; color: var(--primary); opacity: .9; }
.err-flush { display: inline-block; color: var(--accent); }
.center-404 h1 { margin: 10px 0 8px; font-family: var(--serif); }
.center-404 p { color: var(--muted); margin-bottom: 28px; }

/* ---------- Footer ---------- */
.site-footer { margin-top: 50px; border-top: 1px solid var(--border); background: var(--bg2); }
.footer-grid { display: grid; grid-template-columns: 2.2fr 1fr 1fr 1fr; gap: 34px; padding: 56px 22px 34px; }
.footer-col h4 { font-size: .78rem; letter-spacing: 2.5px; color: var(--heading); margin-bottom: 16px; text-transform: uppercase; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 9px; }
.footer-col a { color: var(--muted); font-size: .88rem; }
.footer-col a:hover { color: var(--primary); }
.footer-about p { color: var(--muted); font-size: .88rem; margin-top: 12px; max-width: 340px; }
.socials { display: flex; gap: 10px; margin-top: 16px; }
.socials a { width: 38px; height: 38px; display: grid; place-items: center; border: 1px solid var(--border-strong); border-radius: 10px; color: var(--muted); }
.socials a:hover { color: var(--primary); border-color: var(--primary); }
.footer-bottom { border-top: 1px solid var(--border); padding: 18px 0; }
.footer-bottom .container { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; color: var(--muted); font-size: .8rem; }

/* ---------- Reveal animation (subtle) ---------- */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity .5s ease, transform .5s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .cat-grid { grid-template-columns: repeat(3, 1fr); }
  .single-grid { grid-template-columns: 1fr; }
  .single-side { position: static; }
}
@media (max-width: 860px) {
  .nav-toggle { display: flex; }
  .nav-links { display: none; position: absolute; top: 100%; inset-inline: 0; flex-direction: column; align-items: stretch; background: var(--bg2); border-bottom: 1px solid var(--border); padding: 14px 20px 20px; gap: 4px; box-shadow: var(--shadow-card); }
  .nav-links.open { display: flex; }
  .drop-menu { position: static; opacity: 1; visibility: visible; transform: none; border: 0; background: transparent; box-shadow: none; padding: 0 16px; }
  .lang-switch { margin-inline-start: 0; }
  .nav { flex-wrap: wrap; }
  .lang-switch { order: 5; }
  .hero { padding: 56px 0 50px; }
  .topstrip .ts-right { display: none; }
}
@media (max-width: 640px) {
  .grid-3, .grid-4, .grid-2 { grid-template-columns: 1fr; }
  .cat-grid { grid-template-columns: repeat(2, 1fr); }
  .tc-grid2, .tc-grid3 { grid-template-columns: 1fr; }
  .quiz-opts { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .nl-form { flex-direction: column; }
  .hero-stats { gap: 28px; }
  .post-title { font-size: 1.55rem; }
  .tr-big { font-size: 1.35rem; }
}