/* ============================================================
   USA Content Sites - Production Design System v3
   Dark Mode Toggle + Mobile-First + Performance + SEO 100
   Scalable for 1000+ articles, 1000+ concurrent users
   ============================================================ */

/* Load fonts non-blocking — preconnect in HTML, swap here */
@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: url('https://fonts.gstatic.com/s/inter/v18/UcCO3FwrK3iLTeHuS_nVMrMxCp50SjIw2boKoduKmMEVuLyfAZ9hiA.woff2') format('woff2');
}
@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 600;
    font-display: swap;
    src: url('https://fonts.gstatic.com/s/inter/v18/UcCO3FwrK3iLTeHuS_nVMrMxCp50SjIw2boKoduKmMEVuGKYAZ9hiA.woff2') format('woff2');
}
@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 700;
    font-display: swap;
    src: url('https://fonts.gstatic.com/s/inter/v18/UcCO3FwrK3iLTeHuS_nVMrMxCp50SjIw2boKoduKmMEVuFuYAZ9hiA.woff2') format('woff2');
}
@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 800;
    font-display: swap;
    src: url('https://fonts.gstatic.com/s/inter/v18/UcCO3FwrK3iLTeHuS_nVMrMxCp50SjIw2boKoduKmMEVuDOYAZ9hiA.woff2') format('woff2');
}
@font-face {
    font-family: 'Merriweather';
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: url('https://fonts.gstatic.com/s/merriweather/v30/u-440qyriQwlOrhSvowK_l5-fCZM.woff2') format('woff2');
}
@font-face {
    font-family: 'Merriweather';
    font-style: normal;
    font-weight: 700;
    font-display: swap;
    src: url('https://fonts.gstatic.com/s/merriweather/v30/u-4n0qyriQwlOrhSvowK_l52xwNZWMf6.woff2') format('woff2');
}
@font-face {
    font-family: 'Merriweather';
    font-style: italic;
    font-weight: 400;
    font-display: swap;
    src: url('https://fonts.gstatic.com/s/merriweather/v30/u-4l0qyriQwlOrhSvowK_l5-eSZJ.woff2') format('woff2');
}

/* ============================================================
   CSS CUSTOM PROPERTIES - Light Theme (Default)
   ============================================================ */
:root {
    --primary: #2563eb; --primary-dark: #1d4ed8; --primary-light: #dbeafe;
    --accent: #f59e0b; --accent-dark: #d97706;
    --text: #1e293b; --text-light: #64748b; --text-muted: #94a3b8;
    --bg: #ffffff; --bg-light: #f8fafc; --bg-warm: #fffbeb;
    --border: #e2e8f0; --border-light: #f1f5f9;
    --success: #10b981;
    --card-bg: #ffffff; --header-bg: rgba(255,255,255,0.92); --code-bg: #f1f5f9;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07),0 2px 4px -2px rgba(0,0,0,0.05);
    --shadow-lg: 0 10px 25px -5px rgba(0,0,0,0.1),0 8px 10px -6px rgba(0,0,0,0.04);
    --radius: 12px; --radius-lg: 16px; --max-width: 1400px;
    --transition: 0.25s cubic-bezier(.4,0,.2,1);
    --img-brightness: 1;
    --tip-bg: #ecfdf5; --tip-border: #10b981; --tip-text: #065f46;
    --example-bg: #dbeafe; --example-border: #2563eb; --example-text: #1e3a5f;
    --takeaway-bg: #fef3c7; --takeaway-border: #f59e0b; --takeaway-text: #78350f;
    --quote-bg: #fffbeb; --quote-border: #f59e0b; --quote-text: #92400e;
    --table-header-bg: #2563eb; --table-header-text: #fff;
    --table-even: #f8fafc; --table-hover: #dbeafe;
}

/* ============================================================
   DARK THEME (via data-theme attribute)
   ============================================================ */
[data-theme="dark"] {
    --primary: #60a5fa; --primary-dark: #93c5fd; --primary-light: #1e3a5f;
    --text: #e2e8f0; --text-light: #94a3b8; --text-muted: #64748b;
    --bg: #0f172a; --bg-light: #1e293b; --bg-warm: #1c1917;
    --border: #334155; --border-light: #1e293b;
    --card-bg: #1e293b; --header-bg: rgba(15,23,42,0.95); --code-bg: #1e293b;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.3); --shadow-md: 0 4px 6px rgba(0,0,0,0.3);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.4);
    --img-brightness: 0.88;
    --tip-bg: #064e3b; --tip-border: #10b981; --tip-text: #6ee7b7;
    --example-bg: #1e3a5f; --example-border: #60a5fa; --example-text: #93c5fd;
    --takeaway-bg: #451a03; --takeaway-border: #f59e0b; --takeaway-text: #fcd34d;
    --quote-bg: #1c1917; --quote-border: #f59e0b; --quote-text: #fbbf24;
    --table-header-bg: #1d4ed8; --table-header-text: #e2e8f0;
    --table-even: rgba(255,255,255,0.03); --table-hover: rgba(255,255,255,0.06);
}
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --primary: #60a5fa; --primary-dark: #93c5fd; --primary-light: #1e3a5f;
        --text: #e2e8f0; --text-light: #94a3b8; --text-muted: #64748b;
        --bg: #0f172a; --bg-light: #1e293b; --bg-warm: #1c1917;
        --border: #334155; --border-light: #1e293b;
        --card-bg: #1e293b; --header-bg: rgba(15,23,42,0.95); --code-bg: #1e293b;
        --shadow-sm: 0 1px 2px rgba(0,0,0,0.3); --shadow-md: 0 4px 6px rgba(0,0,0,0.3);
        --shadow-lg: 0 10px 25px rgba(0,0,0,0.4);
        --img-brightness: 0.88;
        --tip-bg: #064e3b; --tip-border: #10b981; --tip-text: #6ee7b7;
        --example-bg: #1e3a5f; --example-border: #60a5fa; --example-text: #93c5fd;
        --takeaway-bg: #451a03; --takeaway-border: #f59e0b; --takeaway-text: #fcd34d;
        --quote-bg: #1c1917; --quote-border: #f59e0b; --quote-text: #fbbf24;
        --table-header-bg: #1d4ed8; --table-header-text: #e2e8f0;
        --table-even: rgba(255,255,255,0.03); --table-hover: rgba(255,255,255,0.06);
    }
}

/* ============================================================
   RESET & BASE
   ============================================================ */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;color:var(--text);background:var(--bg-light);line-height:1.75;font-size:16px;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;height:auto;display:block;filter:brightness(var(--img-brightness))}
a{color:var(--primary);text-decoration:none;transition:color var(--transition)}
a:hover{color:var(--primary-dark)}
.container{max-width:var(--max-width);margin:0 auto;padding:0 20px}
.skip-link{position:absolute;top:-100%;left:16px;z-index:99999;background:var(--primary);color:#fff;padding:10px 20px;border-radius:0 0 8px 8px;font-weight:600;font-size:.9rem}
.skip-link:focus{top:0;color:#fff}

/* ============================================================
   NAVBAR v32 — CSS Grid 3-zone, bulletproof one-line layout
   Research: Medium · TechCrunch · The Verge · Substack
   ============================================================ */

/* Bar */
.platform-bar{position:sticky;top:0;z-index:9999;background:rgba(6,8,18,.97);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid rgba(99,102,241,.14)}

/* Animated top accent line */
.nav-accent-line{height:2px;background:linear-gradient(90deg,#2563eb,#7c3aed,#ec4899,#2563eb);background-size:300% auto;animation:accentFlow 6s linear infinite}
@keyframes accentFlow{to{background-position:300% center}}

/* Inner — CSS Grid, never wraps or overflows */
.platform-bar-inner{max-width:1400px;margin:0 auto;padding:0 24px;height:62px;display:grid;grid-template-columns:auto 1fr auto auto;align-items:center;gap:0}

/* ── ZONE 1: Logo ── */
.platform-home{display:flex;align-items:center;gap:9px;text-decoration:none;flex-shrink:0;margin-right:28px;transition:opacity .2s}
.platform-home:hover{opacity:.82}
.nav-logo-mark{width:32px;height:32px;border-radius:9px;flex-shrink:0;background:linear-gradient(135deg,#2563eb,#7c3aed);display:flex;align-items:center;justify-content:center;box-shadow:0 2px 12px rgba(124,58,237,.35)}
.nav-logo-star{color:#fff;font-size:.9rem;font-weight:700}
.nav-logo-text{display:flex;align-items:baseline;white-space:nowrap}
.nav-logo-usa{font-size:.9rem;font-weight:900;color:#fff;letter-spacing:-.02em}
.nav-logo-sep{color:rgba(148,163,184,.25);margin:0 2px;font-weight:300;font-size:.8rem}
.nav-logo-content{font-size:.9rem;font-weight:800;background:linear-gradient(90deg,#60a5fa,#a78bfa);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}

/* ── ZONE 2: Nav links ── */
.platform-links{display:flex;align-items:center;gap:2px}
.nav-link{color:#94a3b8;text-decoration:none;font-size:.84rem;font-weight:600;padding:7px 13px;border-radius:8px;white-space:nowrap;position:relative;transition:color .18s,background .18s}
.nav-link:hover{color:#f1f5f9;background:rgba(255,255,255,.06)}
.nav-link.nav-active{color:#60a5fa}
.nav-link::after{content:'';position:absolute;bottom:4px;left:13px;height:2px;width:0;background:#60a5fa;border-radius:2px;transition:width .22s}
.nav-link:hover::after,.nav-link.nav-active::after{width:calc(100% - 26px)}
.rl-badge{display:inline-flex;align-items:center;justify-content:center;min-width:16px;height:16px;padding:0 4px;background:#2563eb;color:#fff;border-radius:8px;font-size:.65rem;font-weight:700;margin-left:3px;display:none}

/* ── ZONE 3: Right actions ── */
.nav-right{display:flex;align-items:center;gap:6px;margin-left:16px}

/* Icon buttons (search + theme) */
.nav-icon-btn{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);color:#94a3b8;cursor:pointer;width:34px;height:34px;padding:0;border-radius:8px;font-size:.9rem;display:flex;align-items:center;justify-content:center;transition:all .2s;flex-shrink:0}
.nav-icon-btn:hover{border-color:rgba(255,255,255,.25);color:#e2e8f0;background:rgba(255,255,255,.1)}
.nav-icon-btn svg{stroke:currentColor;flex-shrink:0}

/* Search dropdown (Medium-style expand panel) */
.nav-search-wrap{position:relative}
.nav-search-dropdown{display:none;position:absolute;right:0;top:calc(100% + 10px);background:rgba(10,12,22,.99);border:1px solid rgba(99,102,241,.35);border-radius:12px;box-shadow:0 8px 32px rgba(0,0,0,.65),0 0 0 1px rgba(99,102,241,.1);width:300px;z-index:10000;overflow:hidden;animation:dropIn .18s ease}
.nav-search-dropdown.open{display:block}
@keyframes dropIn{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}
.nav-search-dropdown form{display:flex;align-items:center;gap:10px;padding:13px 16px}
.nav-search-dropdown svg{color:#475569;flex-shrink:0;stroke:currentColor}
.nav-search-input{background:none;border:none;color:#f1f5f9;font-size:.92rem;width:100%;outline:none}
.nav-search-input::placeholder{color:#475569}

/* Divider */
.nav-divider{width:1px;height:20px;background:rgba(255,255,255,.1);margin:0 4px;flex-shrink:0}

/* Auth buttons */
.nav-btn{display:inline-flex;align-items:center;gap:4px;padding:0 15px;height:34px;border-radius:8px;font-size:.82rem;font-weight:700;text-decoration:none;transition:all .2s;white-space:nowrap;flex-shrink:0}
.nav-btn-ghost{color:#64748b;background:transparent;border:1px solid transparent}
.nav-btn-ghost:hover{color:#94a3b8;background:rgba(255,255,255,.06)}
.nav-btn-outline{color:#94a3b8;border:1px solid rgba(255,255,255,.14);background:transparent}
.nav-btn-outline:hover{color:#e2e8f0;border-color:rgba(255,255,255,.28)}
.nav-btn-filled{color:#fff;background:linear-gradient(135deg,#2563eb,#7c3aed);border:1px solid transparent;box-shadow:0 2px 12px rgba(37,99,235,.3)}
.nav-btn-filled:hover{box-shadow:0 4px 20px rgba(37,99,235,.5);transform:translateY(-1px)}

/* ── ZONE 4: Hamburger (mobile only, hidden on desktop) ── */
.menu-toggle{display:none;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);border-radius:8px;width:36px;height:36px;padding:0;cursor:pointer;flex-direction:column;justify-content:center;align-items:center;gap:5px;flex-shrink:0;margin-left:10px;transition:border-color .2s}
.menu-toggle:hover{border-color:rgba(255,255,255,.25)}
.ham-line{display:block;width:18px;height:2px;background:#94a3b8;border-radius:2px;transition:all .25s}
.menu-toggle.open .ham-line:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-toggle.open .ham-line:nth-child(2){opacity:0;transform:scaleX(0)}
.menu-toggle.open .ham-line:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* Mobile dropdown */
.mobile-menu{display:none;background:rgba(6,8,18,.98);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);border-bottom:1px solid rgba(99,102,241,.15);padding:16px}
.mobile-menu.open{display:block;animation:slideDown .22s ease}
@keyframes slideDown{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}
.mobile-search-row{margin-bottom:12px}
.mobile-search-row form{display:flex;align-items:center;gap:10px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);border-radius:10px;padding:10px 14px}
.mobile-search-row svg{color:#475569;stroke:currentColor;flex-shrink:0}
.mobile-search-row input{background:none;border:none;color:#f1f5f9;font-size:.9rem;width:100%;outline:none}
.mobile-search-row input::placeholder{color:#475569}
.mobile-nav-links{display:grid;grid-template-columns:1fr 1fr;gap:6px;margin-bottom:12px}
.mobile-nav-links .nav-link{padding:11px 14px;font-size:.88rem;background:rgba(255,255,255,.04);border-radius:8px;text-align:center}
.mobile-nav-links .nav-link::after{display:none}
.mobile-auth-row{display:flex;gap:8px}

/* ── Responsive breakpoints ── */
@media(max-width:900px){
    .platform-links{display:none}
    .menu-toggle{display:flex}
    .platform-bar-inner{grid-template-columns:auto 1fr auto auto}
}
@media(max-width:540px){
    .platform-bar-inner{height:54px;padding:0 14px}
    .nav-logo-content{display:none}
    .nav-right .nav-btn,.nav-divider{display:none}
}

/* ============================================================
   READING PROGRESS BAR
   ============================================================ */
.reading-progress{position:fixed;top:0;left:0;width:0%;height:3px;background:linear-gradient(90deg,var(--primary),var(--accent));z-index:10000;transition:width .1s linear}

/* ============================================================
   HERO HEADER
   ============================================================ */
.site-header{
    position:relative;
    background:#080d1a;
    padding:54px 0 42px;
    text-align:center;
    overflow:hidden;
    border-bottom:1px solid rgba(99,102,241,.18);
}
/* Dot-grid overlay */
.site-header::before{
    content:'';
    position:absolute;inset:0;
    background-image:radial-gradient(rgba(148,163,184,.08) 1px,transparent 1px);
    background-size:26px 26px;
    pointer-events:none;z-index:0;
}
/* Animated glowing orbs */
.hero-glow{position:absolute;border-radius:50%;filter:blur(72px);pointer-events:none;z-index:0}
.hero-glow-1{width:520px;height:320px;background:rgba(99,102,241,.2);top:-130px;left:-120px;animation:hgFloat 10s ease-in-out infinite}
.hero-glow-2{width:420px;height:280px;background:rgba(37,99,235,.16);bottom:-120px;right:-80px;animation:hgFloat 13s ease-in-out infinite reverse}
.hero-glow-3{width:280px;height:220px;background:rgba(139,92,246,.14);top:50%;left:50%;transform:translate(-50%,-50%)}
@keyframes hgFloat{0%,100%{transform:translate(0,0)}50%{transform:translate(28px,-18px)}}

/* Inner content wrapper */
.hero-inner{position:relative;z-index:2;display:flex;flex-direction:column;align-items:center;gap:16px}

/* Badge */
.hero-badge{
    display:inline-flex;align-items:center;gap:7px;
    background:rgba(37,99,235,.1);
    border:1px solid rgba(99,102,241,.32);
    color:#93c5fd;font-size:.72rem;font-weight:700;
    letter-spacing:.1em;text-transform:uppercase;
    padding:5px 18px;border-radius:100px;
    backdrop-filter:blur(8px);
}

/* Brand name */
.hero-logo{margin:0;line-height:1;letter-spacing:-.04em}
.hero-logo a{text-decoration:none;display:block}
.hero-logo-line1{
    display:block;
    font-size:clamp(2.4rem,5.5vw,4rem);
    font-weight:900;
    color:#fff;
    letter-spacing:-.04em;
    line-height:1;
}
.hero-logo-line1 .grad{
    background:linear-gradient(100deg,#60a5fa 0%,#a78bfa 45%,#f472b6 100%);
    -webkit-background-clip:text;-webkit-text-fill-color:transparent;
    background-clip:text;
    background-size:200% auto;
    animation:gradShift 5s linear infinite;
}
@keyframes gradShift{0%{background-position:0% center}100%{background-position:200% center}}
.hero-logo-line2{
    display:block;
    font-size:clamp(.75rem,1.8vw,1.05rem);
    font-weight:700;color:rgba(148,163,184,.7);
    letter-spacing:.28em;text-transform:uppercase;
    margin-top:4px;
}

/* Tagline */
.hero-tagline{
    font-size:clamp(.88rem,1.8vw,1.05rem);
    color:#94a3b8;letter-spacing:.06em;
    margin:0;line-height:1.6;
}

/* Stats strip */
.hero-stats{
    display:inline-flex;flex-direction:row;align-items:center;
    background:rgba(255,255,255,.04);
    border:1px solid rgba(255,255,255,.08);
    border-radius:18px;padding:13px 0;
    backdrop-filter:blur(10px);
    gap:0;margin-top:4px;
}
.hero-stat{display:flex;flex-direction:column;align-items:center;padding:0 28px;flex-shrink:0}
.hero-stat-num{font-size:1.5rem;font-weight:800;color:#fff;line-height:1;display:block}
.hero-stat-label{font-size:.66rem;font-weight:600;color:#475569;text-transform:uppercase;letter-spacing:.09em;margin-top:4px;display:block}
.hero-stat-div{width:1px;height:40px;background:rgba(255,255,255,.1);flex-shrink:0;display:block}

/* Publication pill links */
.hero-pubs{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin-top:2px}
.hero-pub-pill{
    display:inline-flex;align-items:center;gap:5px;
    padding:5px 15px;border-radius:100px;
    font-size:.75rem;font-weight:600;
    background:rgba(255,255,255,.05);
    border:1px solid rgba(255,255,255,.09);
    color:#cbd5e1;text-decoration:none;
    transition:background .2s,border-color .2s,color .2s;
}
.hero-pub-pill:hover{background:rgba(37,99,235,.2);border-color:rgba(99,102,241,.4);color:#93c5fd}

/* Scroll hint */
.hero-scroll{
    display:flex;flex-direction:column;align-items:center;gap:5px;
    font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;
    color:rgba(100,116,139,.7);margin-top:4px;
}
.hero-scroll-dot{
    width:5px;height:5px;border-radius:50%;background:rgba(99,102,241,.5);
    animation:scrollPulse 1.8s ease-in-out infinite;
}
@keyframes scrollPulse{0%,100%{opacity:.3;transform:scale(1)}50%{opacity:1;transform:scale(1.4)}}

/* Responsive */
@media(max-width:640px){
    .site-header{padding:38px 0 30px}
    .hero-stats{padding:10px 0}
    .hero-stat{padding:0 16px}
    .hero-stat-num{font-size:1.15rem}
    .hero-pubs{gap:6px}
    .hero-pub-pill{font-size:.7rem;padding:4px 11px}
}

/* Keep old selectors working (used elsewhere) */
.logo{font-size:1.5rem;font-weight:800;color:var(--primary);text-decoration:none;letter-spacing:-0.02em}
a.logo:hover{color:var(--primary-dark)}
.tagline{color:var(--text-light);font-size:.82rem;margin-top:3px}

/* ============================================================
   HERO IMAGE
   ============================================================ */
.hero-image{width:100%;max-height:480px;overflow:hidden;border-radius:0 0 var(--radius-lg) var(--radius-lg);position:relative}
.hero-image img{width:100%;height:100%;object-fit:cover;min-height:240px;max-height:480px}
.hero-image .image-credit{position:absolute;bottom:8px;right:12px;background:rgba(0,0,0,0.55);color:#fff;font-size:.7rem;padding:3px 8px;border-radius:4px;backdrop-filter:blur(4px)}
.hero-image .image-credit a{color:#ddd}
.hero-image .image-credit a:hover{color:#fff}

/* ============================================================
   MAIN LAYOUT
   ============================================================ */
main.container{display:grid;grid-template-columns:1fr 280px;gap:36px;padding-top:28px;padding-bottom:48px}
main.container.full-width{grid-template-columns:1fr}
main.container:has(.article-full){grid-template-columns:1fr;max-width:900px}
.article-full,.related-articles,.newsletter-box,.share-bar,.share-buttons{grid-column:1/-1}

/* ============================================================
   ARTICLE CONTENT
   ============================================================ */
.article-content{max-width:100%;background:var(--card-bg);border-radius:var(--radius-lg);padding:36px 44px;box-shadow:var(--shadow-sm);border:1px solid var(--border-light)}
.article-header h1{font-family:'Merriweather',Georgia,serif;font-size:2.05rem;line-height:1.3;margin-bottom:14px;color:var(--text);letter-spacing:-0.02em;font-weight:700}
.article-meta{display:flex;align-items:center;gap:12px;color:var(--text-light);font-size:.82rem;margin-bottom:24px;padding-bottom:18px;border-bottom:1px solid var(--border);flex-wrap:wrap}
.article-meta time{display:flex;align-items:center;gap:4px}
.article-meta .read-time,.article-meta .word-count{background:var(--bg-light);padding:3px 10px;border-radius:20px;font-size:.78rem;font-weight:500}
.article-body{font-family:'Merriweather',Georgia,serif;font-size:1.13rem;line-height:1.92;color:var(--text-light)}
.article-body h2{font-family:'Inter',sans-serif;font-size:1.45rem;font-weight:700;margin:52px 0 18px;color:var(--text);padding-bottom:8px;border-bottom:3px solid var(--primary-light);position:relative}
.article-body h2::before{content:'';position:absolute;bottom:-3px;left:0;width:50px;height:3px;background:var(--primary);border-radius:2px}
.article-body h3{font-family:'Inter',sans-serif;font-size:1.2rem;font-weight:600;margin:36px 0 12px;color:var(--text)}
.article-body p{margin-bottom:22px}
.article-body > p:first-of-type{font-size:1.15em;color:var(--text);line-height:1.85}
.article-body ul,.article-body ol{margin:12px 0 20px 20px;padding-left:8px}
.article-body li{margin-bottom:8px;padding-left:4px}
.article-body li::marker{color:var(--primary);font-weight:600}
.article-body strong{color:var(--text);font-weight:700}
.article-body a{color:var(--primary);text-decoration:underline;text-decoration-color:var(--primary-light);text-underline-offset:3px}
.article-body a:hover{color:var(--primary-dark);text-decoration-color:var(--primary)}
.article-body code{background:var(--code-bg);padding:2px 6px;border-radius:4px;font-size:.88em}
.article-body pre{background:var(--code-bg);padding:16px 20px;border-radius:var(--radius);overflow-x:auto;margin:16px 0;border:1px solid var(--border)}
.article-body pre code{background:none;padding:0}
.article-body .article-image{margin:24px -8px;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-md)}
.article-body .article-image img{width:100%;height:auto;min-height:200px;object-fit:cover;transition:transform .4s ease}
.article-body .article-image:hover img{transform:scale(1.02)}
.article-body .article-image figcaption,.article-body .image-caption{font-family:'Inter',sans-serif;font-size:.78rem;color:var(--text-muted);text-align:center;padding:8px 12px;background:var(--bg-light);font-style:italic}
.article-body blockquote{margin:28px 0;padding:20px 26px 20px 24px;background:var(--quote-bg);border-left:5px solid var(--quote-border);border-radius:0 var(--radius) var(--radius) 0;font-style:italic;color:var(--quote-text);font-size:1.08em;line-height:1.75;position:relative}
.article-body blockquote::before{content:'\201C';position:absolute;top:-8px;left:14px;font-size:3.5rem;color:var(--quote-border);opacity:.35;font-family:Georgia,serif;line-height:1}
.article-body blockquote strong{color:inherit}
.article-body .tip-box,.article-body .example-box,.article-body .key-takeaway{margin:22px 0;padding:18px 22px;border-radius:var(--radius);font-family:'Inter',sans-serif;font-size:.92rem;line-height:1.65}
.article-body .tip-box{background:var(--tip-bg);border-left:4px solid var(--tip-border);color:var(--tip-text)}
.article-body .example-box{background:var(--example-bg);border-left:4px solid var(--example-border);color:var(--example-text)}
.article-body .key-takeaway{background:var(--takeaway-bg);border-left:4px solid var(--takeaway-border);color:var(--takeaway-text)}
.article-body table{width:100%;border-collapse:collapse;margin:18px 0;font-family:'Inter',sans-serif;font-size:.88rem;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm)}
.article-body th{background:var(--table-header-bg);color:var(--table-header-text);padding:10px 14px;text-align:left;font-weight:600}
.article-body td{padding:9px 14px;border-bottom:1px solid var(--border)}
.article-body tr:nth-child(even){background:var(--table-even)}
.article-body tr:hover{background:var(--table-hover)}

/* ============================================================
   ARTICLE CARDS (Index Page)
   ============================================================ */
.articles-list h2{font-family:'Inter',sans-serif;font-size:1.4rem;font-weight:700;margin-bottom:24px;padding-bottom:10px;border-bottom:3px solid var(--primary-light);position:relative}
.articles-list h2::after{content:'';position:absolute;bottom:-3px;left:0;width:50px;height:3px;background:var(--primary);border-radius:2px}
.articles-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(320px,100%),1fr));gap:20px;max-width:100%}
.article-card{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;transition:transform var(--transition),box-shadow var(--transition);display:flex;flex-direction:column;contain:layout style}
.article-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.article-card .card-image{width:100%;height:190px;overflow:hidden}
.article-card .card-image img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.article-card:hover .card-image img{transform:scale(1.05)}
.card-body{padding:18px 20px 20px;flex:1;display:flex;flex-direction:column}
.article-card h3{font-family:'Inter',sans-serif;font-size:1.1rem;font-weight:700;margin-bottom:6px;line-height:1.4}
.article-card h3 a{color:var(--text);text-decoration:none}
.article-card h3 a:hover{color:var(--primary)}
.article-card .article-meta{border:none;padding-bottom:0;margin-bottom:8px;font-size:.78rem}
.article-excerpt,.card-excerpt{color:var(--text-light);margin:6px 0 14px;font-size:.88rem;line-height:1.6;flex:1;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.read-more{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-weight:600;font-size:.88rem}
.read-more::after{content:'\2192'}
.read-more:hover{gap:10px}

/* ============================================================
   SIDEBAR
   ============================================================ */
.sidebar{position:sticky;top:70px;align-self:start}
.sidebar-section{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);padding:20px;margin-bottom:16px;box-shadow:var(--shadow-sm)}
.sidebar-section h3{font-size:.95rem;font-weight:700;margin-bottom:10px}
.sidebar-section p{font-size:.88rem;color:var(--text-light);line-height:1.6}
.tag-list{list-style:none;display:flex;flex-wrap:wrap;gap:6px}
.tag{background:var(--primary-light);color:var(--primary);padding:4px 12px;border-radius:20px;font-size:.75rem;font-weight:500;transition:all var(--transition);cursor:default}
.tag:hover{background:var(--primary);color:#fff}

/* ============================================================
   ADS
   ============================================================ */
.ad-container{text-align:center;margin:18px auto;max-width:var(--max-width);padding:0 20px}
.ad-in-article{margin:28px 0;padding:18px 0;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}

/* ============================================================
   FOOTER — Premium Glassmorphic Design
   ============================================================ */
.site-footer{position:relative;overflow:hidden;margin-top:60px;padding:0;border:none;background:transparent}
.site-footer::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,#0f172a 0%,#1e293b 40%,#0f172a 70%,#1a1a2e 100%);z-index:0}
.site-footer::after{content:'';position:absolute;top:-120px;left:-120px;width:350px;height:350px;background:radial-gradient(circle,rgba(37,99,235,.15) 0%,transparent 70%);border-radius:50%;z-index:1;animation:footerGlow1 8s ease-in-out infinite}
@keyframes footerGlow1{0%,100%{transform:translate(0,0) scale(1);opacity:.6}50%{transform:translate(40px,30px) scale(1.2);opacity:1}}
@keyframes footerGlow2{0%,100%{transform:translate(0,0) scale(1);opacity:.5}50%{transform:translate(-30px,-20px) scale(1.15);opacity:.9}}
@keyframes footerGlow3{0%,100%{transform:translate(0,0) scale(1);opacity:.4}50%{transform:translate(20px,-15px) scale(1.1);opacity:.7}}
.footer-glow-2{position:absolute;bottom:-80px;right:-60px;width:300px;height:300px;background:radial-gradient(circle,rgba(139,92,246,.12) 0%,transparent 70%);border-radius:50%;z-index:1;animation:footerGlow2 10s ease-in-out infinite}
.footer-glow-3{position:absolute;top:50%;left:50%;width:250px;height:250px;background:radial-gradient(circle,rgba(245,158,11,.08) 0%,transparent 70%);border-radius:50%;z-index:1;transform:translate(-50%,-50%);animation:footerGlow3 12s ease-in-out infinite}
.footer-top-wave{position:relative;z-index:2;margin-bottom:-2px}
.footer-top-wave svg{display:block;width:100%;height:60px}
.footer-inner{position:relative;z-index:2;padding:50px 0 0}
.footer-brand{display:flex;align-items:center;gap:14px;margin-bottom:28px}
.footer-brand-icon{width:52px;height:52px;border-radius:14px;background:linear-gradient(135deg,#2563eb,#7c3aed);display:flex;align-items:center;justify-content:center;font-size:1.5rem;box-shadow:0 4px 20px rgba(37,99,235,.3);flex-shrink:0}
.footer-brand-text h3{font-size:1.2rem;font-weight:800;color:#fff;margin:0 0 2px;letter-spacing:-.02em}
.footer-brand-text p{font-size:.8rem;color:#94a3b8;margin:0;line-height:1.3}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 0.8fr 1.2fr;gap:40px;margin-bottom:0;padding:0 0 40px}
.footer-section h3{font-size:.82rem;font-weight:700;text-transform:uppercase;letter-spacing:.12em;margin-bottom:18px;color:#94a3b8;position:relative;padding-bottom:10px}
.footer-section h3::after{content:'';position:absolute;bottom:0;left:0;width:28px;height:2px;background:linear-gradient(90deg,#2563eb,#7c3aed);border-radius:2px}
.footer-section p{color:#94a3b8;font-size:.85rem;line-height:1.7}
.footer-section ul{list-style:none;padding:0;margin:0}
.footer-section ul li{margin-bottom:0}
.footer-section ul li a{color:#cbd5e1;text-decoration:none;font-size:.85rem;transition:all .25s;display:flex;align-items:center;gap:8px;padding:5px 0;border-radius:6px}
.footer-section ul li a::before{content:'';width:0;height:2px;background:linear-gradient(90deg,#2563eb,#7c3aed);border-radius:2px;transition:width .3s ease}
.footer-section ul li a:hover{color:#fff;padding-left:4px}
.footer-section ul li a:hover::before{width:14px}
.footer-social-grid{display:flex;gap:10px;margin-top:8px;flex-wrap:wrap}
.footer-social-grid a{width:40px;height:40px;display:flex;align-items:center;justify-content:center;border-radius:10px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.08);color:#cbd5e1;font-size:1.1rem;text-decoration:none;transition:all .3s cubic-bezier(.4,0,.2,1);backdrop-filter:blur(8px)}
.footer-social-grid a:hover{background:linear-gradient(135deg,#2563eb,#7c3aed);border-color:transparent;color:#fff;transform:translateY(-3px);box-shadow:0 6px 20px rgba(37,99,235,.3)}
.footer-newsletter{margin-top:4px}
.footer-newsletter p{font-size:.82rem;color:#94a3b8;margin-bottom:12px;line-height:1.5}
.footer-newsletter form{display:flex;gap:0;position:relative}
.footer-newsletter input[type="email"]{flex:1;padding:11px 16px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);border-radius:10px 0 0 10px;color:#e2e8f0;font-size:.85rem;outline:none;transition:all .3s;backdrop-filter:blur(8px);min-width:0}
.footer-newsletter input[type="email"]::placeholder{color:#64748b}
.footer-newsletter input[type="email"]:focus{border-color:#2563eb;background:rgba(255,255,255,.1);box-shadow:0 0 0 3px rgba(37,99,235,.15)}
.footer-newsletter button{padding:11px 22px;background:linear-gradient(135deg,#2563eb,#7c3aed);color:#fff;border:none;border-radius:0 10px 10px 0;font-size:.82rem;font-weight:600;cursor:pointer;transition:all .3s;white-space:nowrap;letter-spacing:.02em}
.footer-newsletter button:hover{background:linear-gradient(135deg,#1d4ed8,#6d28d9);box-shadow:0 4px 15px rgba(37,99,235,.3)}
.footer-divider{height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.08) 20%,rgba(255,255,255,.08) 80%,transparent);margin:0;border:none;position:relative;z-index:2}
.footer-bottom{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;padding:20px 0 24px;flex-wrap:wrap;gap:12px}
.footer-bottom-left{display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.copyright{text-align:left;color:#64748b;font-size:.8rem;padding:0;border:none;margin:0}
.copyright a{color:#94a3b8;text-decoration:none;transition:color .25s}
.copyright a:hover{color:#60a5fa}
.footer-bottom-links{display:flex;gap:6px}
.footer-bottom-links a{color:#64748b;font-size:.78rem;text-decoration:none;padding:4px 10px;border-radius:6px;transition:all .25s}
.footer-bottom-links a:hover{color:#e2e8f0;background:rgba(255,255,255,.06)}
.footer-bottom-right{display:flex;align-items:center;gap:8px;color:#64748b;font-size:.78rem}
.footer-status-dot{width:7px;height:7px;border-radius:50%;background:#10b981;box-shadow:0 0 8px rgba(16,185,129,.5);animation:statusPulse 2s ease-in-out infinite}
@keyframes statusPulse{0%,100%{box-shadow:0 0 8px rgba(16,185,129,.5)}50%{box-shadow:0 0 16px rgba(16,185,129,.8)}}
.site-footer nav{margin-top:10px;display:flex;justify-content:center;flex-wrap:wrap;gap:4px}
.site-footer nav a{color:var(--text-light);padding:5px 12px;border-radius:20px;font-size:.82rem;font-weight:500;transition:all var(--transition)}
.site-footer nav a:hover{background:var(--primary-light);color:var(--primary)}

/* ============================================================
   INLINE SHARE BAR  (below article body)
   ============================================================ */
.share-bar{margin:2rem 0;padding:1rem 1.5rem;background:var(--bg-light);border-radius:var(--radius);border:1px solid var(--border);display:flex;align-items:center;flex-wrap:wrap;gap:10px}
.share-bar-label{font-size:.72rem;font-weight:700;letter-spacing:.07em;text-transform:uppercase;color:var(--text-muted);white-space:nowrap;flex-shrink:0}
.share-bar-sep{width:1px;height:18px;background:var(--border);flex-shrink:0}
.share-bar-btns{display:flex;align-items:center;flex-wrap:wrap;gap:7px}
.share-pill{display:inline-flex;align-items:center;gap:5px;padding:6px 14px;border-radius:100px;font-size:.78rem;font-weight:600;line-height:1;text-decoration:none;color:#fff!important;border:none;cursor:pointer;transition:transform .18s,box-shadow .18s,background .18s;font-family:'Inter',sans-serif}
.share-pill svg{flex-shrink:0}
.share-pill:hover{transform:translateY(-2px);box-shadow:0 4px 14px rgba(0,0,0,.2)}
.share-pill:active{transform:translateY(0);box-shadow:none}
.sp-tw{background:#000}
.sp-fb{background:#1877f2}
.sp-li{background:#0a66c2}
.sp-wa{background:#25d366}
.sp-cp{background:var(--text-light);color:#fff!important}
.sp-cp.copied{background:var(--success)}
/* legacy aliases kept so grid-column rule still matches */
.share-buttons{display:contents}

/* ============================================================
   RELATED ARTICLES
   ============================================================ */
.related-articles{margin-top:36px;padding-top:28px;border-top:2px solid var(--primary-light)}
.related-articles h2{font-family:'Inter',sans-serif;font-size:1.2rem;font-weight:700;margin-bottom:16px;border-bottom:none;padding-bottom:0}
.related-articles h2::before{display:none}
.related-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.related-card{display:block;background:var(--bg-light);border:1px solid var(--border);border-radius:var(--radius);padding:16px 18px;text-decoration:none;transition:all var(--transition)}
.related-card:hover{box-shadow:var(--shadow-md);border-color:var(--primary);transform:translateY(-2px)}
.related-card h3{font-size:.9rem;color:var(--text);margin-bottom:6px;line-height:1.4;font-weight:600}
.related-card .read-time{color:var(--text-muted);font-size:.75rem}

/* ============================================================
   BACK TO TOP
   ============================================================ */
.back-to-top{position:fixed;bottom:20px;right:20px;width:42px;height:42px;background:var(--primary);color:#fff;border:none;border-radius:50%;cursor:pointer;font-size:1.1rem;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-lg);opacity:0;visibility:hidden;transition:all var(--transition);z-index:90}
.back-to-top.visible{opacity:1;visibility:visible}
.back-to-top:hover{background:var(--primary-dark);transform:translateY(-3px)}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media(max-width:768px){
    main.container{grid-template-columns:1fr;padding-top:18px;gap:20px}
    .sidebar{position:static}
    .article-content{padding:22px 20px;border-radius:var(--radius)}
    .article-header h1{font-size:1.55rem}
    .article-body{font-size:1.04rem;line-height:1.85}
    .article-body h2{font-size:1.3rem;margin-top:36px}
    .article-body h3{font-size:1.1rem}
    .hero-image{border-radius:0;max-height:280px}
    .hero-image img{min-height:180px;max-height:280px}
    .related-grid{grid-template-columns:1fr}
    .share-bar{gap:8px;padding:14px 16px}
    .share-pill{padding:6px 11px;font-size:.74rem}
    .articles-grid{grid-template-columns:1fr;gap:16px}
    .article-card .card-image{height:170px}
    .footer-grid{grid-template-columns:repeat(2,1fr);gap:24px 16px;font-size:.8rem}
    .footer-bottom{flex-direction:column;text-align:center;gap:8px}
    .footer-bottom-left{justify-content:center}
}
@media(max-width:480px){
    body{font-size:15px}
    .site-header{padding:32px 0 24px}
    .hero-logo-line1{font-size:2rem}
    .hero-badge{font-size:.65rem}
    .tagline{font-size:.75rem}
    .article-content{padding:16px 14px}
    .article-header h1{font-size:1.35rem}
    .article-body{font-size:.97rem}
    .article-body h2{font-size:1.18rem}
    .article-body h3{font-size:1.05rem}
    .article-body .tip-box,.article-body .example-box,.article-body .key-takeaway{padding:14px 16px;font-size:.85rem}
    .article-body blockquote{padding:14px 16px}
    .share-btn{padding:7px 10px;font-size:.75rem}
    .card-body{padding:14px 16px 16px}
    .article-card h3{font-size:1rem}
    .back-to-top{width:38px;height:38px;bottom:14px;right:14px}
}
@media(max-width:360px){
    .container{padding:0 12px}
    .article-content{padding:14px 12px}
    .article-header h1{font-size:1.15rem}
    .share-btn{padding:6px 8px;font-size:.72rem}
}
@media print{
    .ad-container,.sidebar,.site-header,.site-footer,.platform-bar,.share-buttons,.back-to-top,.reading-progress,.hero-image,.theme-toggle,.menu-toggle{display:none!important}
    body{font-size:11pt;background:#fff;color:#000}
    .article-content{box-shadow:none;border:none;padding:0}
}
@media(prefers-reduced-motion:reduce){
    *,*::before,*::after{transition-duration:.01ms!important;animation-duration:.01ms!important}
    html{scroll-behavior:auto}
}

/* ============================================================
   FAQ SECTION (SEO: Google "People Also Ask")
   ============================================================ */
.faq-section{margin:32px 0;padding:24px;background:var(--bg-light);border-radius:var(--radius-lg);border:1px solid var(--border)}
.faq-heading{font-family:'Inter',sans-serif;font-size:1.25rem;font-weight:700;margin-bottom:16px;border-bottom:none;padding-bottom:0;color:var(--text)}
.faq-heading::before{display:none}
.faq-item{border:1px solid var(--border);border-radius:var(--radius);margin-bottom:8px;overflow:hidden;background:var(--card-bg);transition:box-shadow var(--transition)}
.faq-item:hover{box-shadow:var(--shadow-sm)}
.faq-question{display:flex;justify-content:space-between;align-items:center;width:100%;padding:14px 18px;background:none;border:none;cursor:pointer;font-family:'Inter',sans-serif;font-size:.92rem;font-weight:600;color:var(--text);text-align:left;line-height:1.4;gap:12px}
.faq-question:hover{color:var(--primary)}
.faq-icon{font-size:1.2rem;font-weight:700;color:var(--primary);transition:transform .3s ease;flex-shrink:0}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .35s ease,padding .35s ease}
.faq-item.open .faq-answer{max-height:500px;padding:0 18px 16px}
.faq-answer p{font-size:.9rem;line-height:1.7;color:var(--text-light);margin:0}

/* ============================================================
   NEWSLETTER SIGNUP
   ============================================================ */
.newsletter-signup{margin:28px 0;padding:28px 24px;background:linear-gradient(135deg,var(--primary-light),var(--bg-warm));border-radius:var(--radius-lg);border:2px solid var(--primary);text-align:center}
.newsletter-signup h3{font-family:'Inter',sans-serif;font-size:1.15rem;font-weight:700;margin-bottom:6px;color:var(--text)}
.newsletter-signup p{font-size:.88rem;color:var(--text-light);margin-bottom:14px}
.newsletter-form{display:flex;gap:8px;max-width:440px;margin:0 auto}
.newsletter-form input[type="email"]{flex:1;padding:10px 16px;border:1px solid var(--border);border-radius:8px;font-size:.9rem;background:var(--card-bg);color:var(--text);outline:none;transition:border-color var(--transition)}
.newsletter-form input[type="email"]:focus{border-color:var(--primary)}
.newsletter-form button{padding:10px 22px;background:var(--primary);color:#fff;border:none;border-radius:8px;font-weight:700;font-size:.88rem;cursor:pointer;transition:all var(--transition);white-space:nowrap}
.newsletter-form button:hover{background:var(--primary-dark);transform:translateY(-1px)}
.newsletter-note{display:block;margin-top:8px;font-size:.75rem;color:var(--text-muted)}
@media(max-width:480px){
    .newsletter-form{flex-direction:column}
    .newsletter-form button{width:100%}
}

/* ============================================================
   LOAD MORE PAGINATION
   ============================================================ */
.articles-count{font-size:.82rem;color:var(--text-muted);margin:-16px 0 18px;font-weight:500}
.load-more-container{text-align:center;padding:32px 0 8px;grid-column:1/-1}
.load-more-btn{display:inline-flex;align-items:center;gap:8px;padding:14px 36px;background:var(--primary);color:#fff;border:none;border-radius:var(--radius);cursor:pointer;font-family:'Inter',sans-serif;font-size:.95rem;font-weight:700;transition:all var(--transition);box-shadow:var(--shadow-md)}
.load-more-btn:hover:not(:disabled){background:var(--primary-dark);transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.load-more-btn:disabled{opacity:.6;cursor:wait}
.load-more-count{font-weight:400;font-size:.82rem;opacity:.85}

/* Pagination */
.pagination{display:flex;align-items:center;justify-content:center;gap:6px;padding:32px 0 8px;grid-column:1/-1;flex-wrap:wrap}
.pagination a,.pagination span{display:inline-flex;align-items:center;justify-content:center;min-width:42px;height:42px;padding:0 14px;border-radius:var(--radius);font-family:'Inter',sans-serif;font-size:.9rem;font-weight:600;transition:all var(--transition);text-decoration:none;user-select:none}
.pagination .page-num{background:var(--card-bg);color:var(--text);border:2px solid var(--border);cursor:pointer}
.pagination .page-num:hover{background:var(--primary);color:#fff;border-color:var(--primary);transform:translateY(-2px);box-shadow:var(--shadow-md)}
.pagination .page-current{background:var(--primary);color:#fff;border:2px solid var(--primary);box-shadow:var(--shadow-md);cursor:default}
.pagination .page-prev,.pagination .page-next{background:var(--card-bg);color:var(--primary);border:2px solid var(--border);cursor:pointer;gap:6px;font-weight:700}
.pagination .page-prev:hover,.pagination .page-next:hover{background:var(--primary);color:#fff;border-color:var(--primary);transform:translateY(-2px);box-shadow:var(--shadow-md)}
.pagination .page-dots{color:var(--text-muted);border:none;background:none;min-width:32px;cursor:default;letter-spacing:2px}
.pagination .page-info{color:var(--text-muted);font-size:.8rem;font-weight:500;border:none;background:none;width:100%;margin-top:8px}
@media(max-width:480px){.pagination a,.pagination span{min-width:36px;height:36px;padding:0 10px;font-size:.82rem}.pagination{gap:4px}}

/* ============================================================
   PERFORMANCE: CONTAIN & WILL-CHANGE
   ============================================================ */
.article-card{contain:layout style paint}
.site-header{contain:layout style}
.platform-bar{contain:style}
.sidebar{contain:layout style}
.article-body img{content-visibility:auto;contain-intrinsic-size:800px 450px}

/* GPU-accelerated transforms for smooth hover */
.article-card,.share-btn,.back-to-top,.load-more-btn{will-change:transform}

/* ============================================================
   TABLE OF CONTENTS
   ============================================================ */
.toc-container{margin:1.5rem 0;padding:1.25rem 1.5rem;background:var(--bg-light);border:1px solid var(--border);border-radius:var(--radius);border-left:4px solid var(--primary)}
.toc-header{display:flex;justify-content:space-between;align-items:center;cursor:pointer;user-select:none}
.toc-list{margin:.75rem 0 0;padding-left:1.25rem;list-style-type:decimal}
.toc-list li{margin-bottom:2px}
.toc-list.collapsed{display:none}
.toc-list a:hover{text-decoration:underline}

/* ============================================================
   COMMENTS
   ============================================================ */
.comments-section{max-width:800px}
.comment-form input:focus,.comment-form textarea:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 3px var(--primary-light)}
.comment-item{transition:background var(--transition)}
.comment-item:hover{background:var(--bg-light)}

/* ============================================================
   BOOKMARK BUTTON
   ============================================================ */
.bookmark-btn:hover{border-color:var(--primary)!important;color:var(--primary)!important}

/* ============================================================
   READING LIST NAV
   ============================================================ */
.reading-list-nav{position:relative}
.rl-count{font-size:.65rem;background:var(--primary);color:#fff;border-radius:50%;min-width:16px;height:16px;display:inline-flex;align-items:center;justify-content:center;font-weight:700;vertical-align:top;margin-left:2px}
.rl-count:empty{display:none}

/* ============================================================
   GOOGLE TRANSLATE WIDGET - Style Override
   ============================================================ */
#google_translate_element{display:inline-flex;align-items:center;vertical-align:middle}
#google_translate_element .skiptranslate{display:inline-flex!important;align-items:center}
#google_translate_element .goog-te-gadget{font-size:0!important;margin:0;display:inline-flex;align-items:center}
#google_translate_element .goog-te-gadget>span{display:none!important}
#google_translate_element select.goog-te-combo{padding:5px 28px 5px 10px;border-radius:8px;border:1px solid var(--border);background:var(--card-bg);color:var(--text);font-size:.82rem;line-height:1.2;cursor:pointer;min-width:130px;height:32px;appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748b' d='M2 4l4 4 4-4'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 8px center;transition:border-color .2s,box-shadow .2s;outline:none}
#google_translate_element select.goog-te-combo:hover{border-color:var(--primary)}
#google_translate_element select.goog-te-combo:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-light)}
.translate-bar{margin:1rem 0;padding:8px 16px;background:var(--bg-light);border-radius:var(--radius);border:1px solid var(--border);display:inline-flex;align-items:center;gap:10px;font-size:.85rem;line-height:32px;color:var(--text-light)}

/* ============================================================
   TEXT-TO-SPEECH PLAYER
   ============================================================ */
.tts-player{margin:0 0 1.2rem;padding:12px 16px;background:var(--bg-light);border-radius:var(--radius);border:1px solid var(--border);display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.tts-btn{width:44px;height:44px;border-radius:50%;border:2px solid var(--primary);background:var(--primary);color:#fff;font-size:1.2rem;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:transform .15s,box-shadow .2s;flex-shrink:0;padding:0;line-height:1}
.tts-btn:hover{transform:scale(1.08);box-shadow:0 2px 10px rgba(99,102,241,.35)}
.tts-btn:active{transform:scale(.96)}
.tts-info{flex:1;min-width:140px}
.tts-label{font-size:.85rem;font-weight:600;color:var(--text);margin-bottom:4px}
.tts-progress-bar{height:4px;background:var(--border);border-radius:4px;overflow:hidden;margin-bottom:3px}
.tts-progress-fill{height:100%;width:0;background:var(--primary);border-radius:4px;transition:width .3s}
.tts-meta{font-size:.72rem;color:var(--text-light)}
.tts-controls{display:flex;align-items:center;gap:6px;flex-shrink:0}
.tts-ctrl{background:none;border:1px solid var(--border);border-radius:6px;padding:4px 8px;font-size:.85rem;cursor:pointer;color:var(--text);transition:border-color .2s,background .2s}
.tts-ctrl:hover{border-color:var(--primary);background:var(--primary-light)}
.tts-speed{padding:3px 6px;border-radius:6px;border:1px solid var(--border);background:var(--card-bg);color:var(--text);font-size:.78rem;cursor:pointer}

.goog-te-banner-frame{display:none!important}
.goog-te-menu-frame{z-index:100000001!important}
body{top:0!important;position:static!important}
body>.skiptranslate{display:none!important}
#goog-gt-tt{display:none!important}
.goog-te-balloon-frame{display:none!important}
div#goog-gt-{display:none!important}

/* ============================================================
   MOBILE IMPROVEMENTS v34 — Viewer-First Fixes
   Tested: 320px · 360px · 375px · 390px · 412px · 768px
   ============================================================ */

/* Article cover image (used in article.html) */
.article-cover{margin:0 -44px 28px;border-radius:var(--radius-lg);overflow:hidden}
.article-cover img{width:100%;max-height:500px;object-fit:cover;display:block}
@media(max-width:768px){
    .article-cover{margin:0 -20px 20px;border-radius:0}
    .article-cover img{max-height:280px}
}
@media(max-width:480px){
    .article-cover img{max-height:220px}
}

/* Article tags */
.article-tags{display:flex;flex-wrap:wrap;gap:6px;margin:1.5rem 0}
.article-tags .tag-link{font-size:.78rem}

/* Article subtitle */
.article-subtitle{font-size:1.15rem;color:var(--text-light);line-height:1.65;margin-bottom:1rem;font-style:italic}
@media(max-width:480px){.article-subtitle{font-size:1rem}}

/* Article meta — hide verbose items on tiny screens */
@media(max-width:480px){
    .article-meta .word-count{display:none}
}
@media(max-width:360px){
    .article-meta .views-count{display:none}
    .article-meta .read-time{display:none}
}

/* Tables — horizontal scroll on mobile (prevents page overflow) */
@media(max-width:768px){
    .article-body table{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch;max-width:100%}
}

/* TTS player — stack controls on small screens */
@media(max-width:480px){
    .tts-player{flex-wrap:wrap;gap:8px}
    .tts-info{min-width:100%;order:2}
    .tts-btn{order:1}
    .tts-controls{order:3;width:100%;justify-content:space-between}
    .tts-speed{flex:1;max-width:80px}
}

/* Footer newsletter form — stack on mobile */
@media(max-width:540px){
    .footer-newsletter form{flex-direction:column;gap:8px}
    .footer-newsletter input[type="email"]{border-radius:10px;min-width:0;width:100%}
    .footer-newsletter button{border-radius:10px;padding:12px}
}

/* Footer grid — 1 column on tiny screens */
@media(max-width:420px){
    .footer-grid{grid-template-columns:1fr!important}
    .footer-brand{flex-direction:column;align-items:flex-start;gap:8px}
}

/* Touch targets — minimum 44×44px for all interactive elements */
.rating-stars{min-height:44px;align-items:center}
.rating-stars .star{font-size:1.5rem;min-width:36px;text-align:center;cursor:pointer}
.faq-question{min-height:48px}
.bm-btn{min-height:36px;min-width:36px}
.bookmark-btn{min-height:36px}
.tts-btn{min-width:44px;min-height:44px}
.tts-ctrl{min-height:34px;min-width:34px;display:inline-flex;align-items:center;justify-content:center}

/* Article card image — consistent height on all phones */
@media(max-width:480px){
    .article-card .card-image{height:185px}
    .card-body{padding:12px 14px 14px}
}

/* Comment form — full-width inputs on mobile */
@media(max-width:480px){
    .comment-form input,.comment-form textarea{font-size:16px!important} /* prevent iOS zoom */
}

/* Search input — prevent iOS zoom on focus */
input[type="search"],input[type="email"],input[type="text"],textarea,select{font-size:16px}
@media(min-width:481px){
    input[type="search"],input[type="email"],input[type="text"],textarea,select{font-size:inherit}
}

/* Sidebar newsletter input — prevent iOS zoom */
.sidebar-section input[type="email"]{font-size:16px}

/* Category rail — better touch on mobile */
@media(max-width:480px){
    .category-rail{gap:7px;padding-bottom:8px}
    .cat-chip{padding:7px 14px;font-size:.8rem}
}

/* Back-to-top — higher on mobile to avoid browser chrome */
@media(max-width:480px){
    .back-to-top{bottom:70px;right:14px;width:40px;height:40px}
}

/* Share buttons row — full-width on small phones */
@media(max-width:360px){
    .share-btn{flex:1;justify-content:center}
}

/* Newsletter form in article — stack on mobile */
@media(max-width:480px){
    .newsletter-box form{flex-direction:column!important;align-items:stretch!important}
    .newsletter-box input[type="email"]{width:100%!important}
    .newsletter-box button{width:100%!important}
}

/* Pagination — compact on tiny screens */
@media(max-width:360px){
    .pagination a,.pagination span{min-width:32px;height:32px;padding:0 6px;font-size:.78rem}
}

/* Related grid — always 1 col on mobile */
@media(max-width:640px){
    .related-grid{grid-template-columns:1fr}
}

/* Reading progress bar — thicker on mobile for visibility */
@media(max-width:768px){
    .reading-progress{height:4px}
}

/* Mobile menu nav links — better tap size */
@media(max-width:900px){
    .mobile-nav-links .nav-link{padding:13px 14px;font-size:.9rem}
    .mobile-auth-row .nav-btn{height:42px;font-size:.88rem}
}

/* Prevent horizontal overflow site-wide */
html,body{overflow-x:hidden;max-width:100vw}
.container{overflow-x:hidden}

/* Article meta print button — hide on mobile */
@media(max-width:480px){.print-btn{display:none}}

/* ============================================================
   LARGE SCREEN / FULL-WIDTH UTILISATION
   1400px → wider sidebar + larger gaps
   1600px → expand max-width + 4-column grids
   1920px+ → ultra-wide cap at 1800px
   ============================================================ */

/* 1400px+ — wider sidebar, larger gap */
@media(min-width:1400px){
    main.container{grid-template-columns:1fr 320px;gap:48px}
    .container{padding:0 32px}
    .platform-bar-inner{padding:0 32px}
    .footer-inner .container{padding:0 32px}
}

/* 1600px+ — expand overall max-width, 4-col article grids */
@media(min-width:1600px){
    :root{--max-width:1600px}
    main.container{grid-template-columns:1fr 360px;gap:56px}
    .container{padding:0 40px}
    .platform-bar-inner{max-width:1600px;padding:0 40px}
    .articles-grid{grid-template-columns:repeat(auto-fill,minmax(340px,1fr))}
    .hero-stat{padding:0 36px}
    .footer-grid{gap:48px 32px}
    main.container:has(.article-full){max-width:960px}
    .related-grid{grid-template-columns:repeat(3,1fr)}
}

/* 1920px+ — ultra-wide, cap max-width at 1800px */
@media(min-width:1920px){
    :root{--max-width:1800px}
    .platform-bar-inner{max-width:1800px}
    main.container{grid-template-columns:1fr 400px;gap:64px}
    .articles-grid{grid-template-columns:repeat(4,1fr)}
    .featured-grid{grid-template-columns:2fr 1fr 1fr 1fr}
    main.container:has(.article-full){max-width:1000px}
}