/*
Theme Name: Salah Structural
Theme URI: https://salahstructural.com
Description: Structural Engineering Blog — Arabic
Author: Abdulrahman Salah
Version: 3.0
Text Domain: salah-structural
*/

@import url('https://fonts.googleapis.com/css2?family=Cairo:wght@400;500;600;700;900&display=swap');

/* ── Variables ── */
:root {
  --blue:         #2563eb;
  --blue-dark:    #1d4ed8;
  --blue-light:   #dbeafe;
  --navy:         #1e3a5f;
  --navy-deep:    #0f1f38;
  --text:         #111827;
  --text-muted:   #6b7280;
  --border:       #e5e7eb;
  --bg:           #ffffff;
  --bg-soft:      #f9fafb;
  --radius:       10px;
  --shadow:       0 2px 12px rgba(0,0,0,0.08);
  --shadow-hover: 0 8px 30px rgba(37,99,235,0.15);
  --font:         'Cairo', 'Segoe UI', sans-serif;
}

/* ── Reset ── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);font-size:16px;line-height:1.7;color:var(--text);background:var(--bg);direction:rtl}
*{font-family:var(--font)}
img{max-width:100%;height:auto;display:block}
a{color:var(--blue);text-decoration:none;transition:color .2s}
a:hover{color:var(--blue-dark)}
.container{max-width:1100px;margin:0 auto;padding:0 20px}

/* ══════════════════════════════════════
   HEADER — Logo + 3 nav items
   ══════════════════════════════════════ */
.site-header{background:#fff;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100;box-shadow:0 1px 8px rgba(0,0,0,.06)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.site-logo{font-size:20px;font-weight:700;color:var(--navy);letter-spacing:-.3px}
.site-logo span{color:var(--blue)}
.site-nav{display:flex;gap:6px;align-items:center}
.site-nav a{color:var(--text-muted);font-size:14px;font-weight:600;padding:8px 16px;border-radius:8px;transition:all .2s}
.site-nav a:hover,.site-nav a.active{color:var(--blue);background:var(--blue-light)}
/* Home icon button */
.nav-home{display:flex;align-items:center;justify-content:center;width:38px;height:38px;padding:0 !important;border-radius:8px}
.nav-home:hover,.nav-home.active{background:var(--blue-light)}
.nav-home.active svg{stroke:var(--blue)}
/* Contact CTA */
.nav-cta{background:var(--blue) !important;color:#fff !important;padding:8px 18px !important}
.nav-cta:hover{background:var(--blue-dark) !important}
.menu-toggle{display:none;background:none;border:none;cursor:pointer;padding:8px;color:var(--text)}

/* ══════════════════════════════════════
   HERO
   ══════════════════════════════════════ */
.hero{position:relative;background:linear-gradient(135deg,var(--navy-deep) 0%,var(--navy) 55%,#1e40af 100%);color:#fff;padding:80px 0 72px;text-align:center;overflow:hidden;background-size:cover;background-position:center}
.hero-overlay{position:absolute;inset:0;background:var(--navy-deep);pointer-events:none}
.hero-pattern{position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:48px 48px}
.hero-content{position:relative;z-index:1;max-width:680px;margin:0 auto}
.hero h1{font-size:clamp(26px,5vw,50px);font-weight:900;line-height:1.2;margin-bottom:16px;text-shadow:0 2px 12px rgba(0,0,0,.25)}
.hero p{font-size:17px;opacity:.85;max-width:560px;margin:0 auto}

/* ══════════════════════════════════════
   FEATURE CARDS — Articles & Tools
   ══════════════════════════════════════ */
.feature-cards-section{padding:0;margin-top:-2px}
.feature-cards{display:grid;grid-template-columns:1fr 1fr;gap:0}

.feature-card{display:block;text-decoration:none;transition:all .3s;position:relative;overflow:hidden}
.feature-card-inner{display:flex;align-items:center;gap:24px;padding:44px 48px;min-height:180px;position:relative;z-index:1}

.feature-card-articles{background:linear-gradient(135deg,#1e40af,#2563eb)}
.feature-card-tools   {background:linear-gradient(135deg,#0d9488,#059669)}

.feature-card::before{content:'';position:absolute;inset:0;background:rgba(0,0,0,0);transition:background .3s;z-index:0}
.feature-card:hover::before{background:rgba(0,0,0,.08)}

.feature-card-icon{font-size:52px;flex-shrink:0;line-height:1}
.feature-card-text h2{font-size:clamp(18px,2.5vw,24px);font-weight:900;color:#fff;margin-bottom:8px}
.feature-card-text p{font-size:14px;color:rgba(255,255,255,.8);line-height:1.6;max-width:340px}
.feature-card-count{display:flex;align-items:baseline;gap:6px;margin-top:14px}
.count-num{font-size:32px;font-weight:900;color:#fff;line-height:1}
.count-label{font-size:13px;color:rgba(255,255,255,.75);font-weight:600}
.feature-card-arrow{font-size:28px;color:rgba(255,255,255,.5);margin-right:auto;transition:transform .3s;flex-shrink:0}
.feature-card:hover .feature-card-arrow{transform:translateX(-6px);color:#fff}

/* ══════════════════════════════════════
   SECTIONS
   ══════════════════════════════════════ */
.section{padding:64px 0}
.section-alt{background:var(--bg-soft)}
.section-title{font-size:24px;font-weight:800;color:var(--navy);margin-bottom:6px}
.section-subtitle{font-size:14px;color:var(--text-muted)}
.section-header{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:28px;gap:12px}
.section-header .view-all{font-size:13px;font-weight:700;color:var(--blue);white-space:nowrap}

/* ══════════════════════════════════════
   BUTTONS
   ══════════════════════════════════════ */
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 24px;border-radius:8px;font-size:15px;font-weight:700;font-family:var(--font);cursor:pointer;border:2px solid transparent;transition:all .2s}
.btn-blue{background:var(--blue);color:#fff}
.btn-blue:hover{background:var(--blue-dark);color:#fff}
.btn-outline{border-color:rgba(255,255,255,.5);color:#fff}
.btn-outline:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff}

/* ══════════════════════════════════════
   ARTICLE CARDS
   ══════════════════════════════════════ */
.articles-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:24px}
.article-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:all .25s;display:flex;flex-direction:column}
.article-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px);border-color:var(--blue-light)}
.article-card-img{aspect-ratio:16/9;overflow:hidden;background:var(--bg-soft)}
.article-card-img img{width:100%;height:100%;object-fit:cover;transition:transform .3s}
.article-card:hover .article-card-img img{transform:scale(1.04)}
.article-card-img-placeholder{aspect-ratio:16/9;background:linear-gradient(135deg,var(--navy),#1e40af);display:flex;align-items:center;justify-content:center;font-size:48px}
.article-card-body{padding:20px;flex:1;display:flex;flex-direction:column}
.article-meta{display:flex;align-items:center;gap:8px;margin-bottom:10px;flex-wrap:wrap}
.tag{font-size:11px;font-weight:700;padding:3px 10px;border-radius:20px;background:var(--blue-light);color:var(--blue);text-decoration:none;transition:all .2s}
.tag:hover{background:var(--blue);color:#fff}
.article-date{font-size:12px;color:var(--text-muted);margin-right:auto}
.article-card h3{font-size:16px;font-weight:700;color:var(--text);margin-bottom:10px;line-height:1.5}
.article-card h3 a{color:var(--text)}
.article-card h3 a:hover{color:var(--blue)}
.article-card p{font-size:14px;color:var(--text-muted);line-height:1.6;flex:1}
.article-tags-row{display:flex;flex-wrap:wrap;gap:4px;margin-top:8px}
.article-tag-pill{font-size:11px;font-weight:600;padding:2px 9px;border-radius:20px;background:#f3f4f6;color:#374151;text-decoration:none;transition:all .2s;display:inline-block}
.article-tag-pill:hover{background:var(--blue);color:#fff}
.article-card-footer{margin-top:16px;padding-top:14px;border-top:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}
.read-more{font-size:13px;font-weight:700;color:var(--blue)}
.read-time{font-size:12px;color:var(--text-muted)}

/* ══════════════════════════════════════
   TOOLS GRID
   ══════════════════════════════════════ */
.tools-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:20px}
.tool-card{background:#fff;border:1px solid var(--border);border-radius:16px;padding:24px 16px;text-align:center;transition:all .25s;display:block;text-decoration:none;color:var(--text)}
.tool-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px);border-color:var(--blue);color:var(--text)}
.tool-card-placeholder{opacity:.65;cursor:default;pointer-events:none}
.tool-icon{width:64px;height:64px;border-radius:16px;display:flex;align-items:center;justify-content:center;margin:0 auto 14px;font-size:28px;flex-shrink:0}
.tool-icon-blue   {background:linear-gradient(135deg,#2563eb,#3b82f6)}
.tool-icon-green  {background:linear-gradient(135deg,#059669,#10b981)}
.tool-icon-purple {background:linear-gradient(135deg,#7c3aed,#8b5cf6)}
.tool-icon-orange {background:linear-gradient(135deg,#d97706,#f59e0b)}
.tool-icon-red    {background:linear-gradient(135deg,#dc2626,#ef4444)}
.tool-icon-teal   {background:linear-gradient(135deg,#0d9488,#14b8a6)}
.tool-icon-gold   {background:linear-gradient(135deg,#b45309,#f59e0b)}
.tool-icon-slate  {background:linear-gradient(135deg,#374151,#6b7280)}
.tool-card h3{font-size:14px;font-weight:700;margin-bottom:6px;line-height:1.4}
.tool-card p{font-size:12px;color:var(--text-muted);line-height:1.5}
.tool-badge{display:inline-block;margin-top:10px;font-size:10px;font-weight:700;padding:2px 8px;border-radius:4px}
.badge-free{background:#f0fdf4;color:#15803d}
.badge-new{background:#eff6ff;color:#1d4ed8}
.tool-ref-pill{display:inline-block;font-size:10px;font-weight:600;color:var(--text-muted);background:#f3f4f6;border:1px solid var(--border);padding:2px 8px;border-radius:20px;margin:4px auto 2px}

/* ══════════════════════════════════════
   PAGE HEADER
   ══════════════════════════════════════ */
.page-header{background:var(--bg-soft);padding:48px 0;border-bottom:1px solid var(--border)}
.page-header h1{font-size:30px;font-weight:900;color:var(--navy);margin-bottom:6px}
.page-header p{color:var(--text-muted);font-size:15px}

/* ══════════════════════════════════════
   FILTER / TAGS
   ══════════════════════════════════════ */
.filter-bar{display:flex;gap:8px;flex-wrap:wrap;padding:20px 0;border-bottom:1px solid var(--border);margin-bottom:24px}
.filter-btn{padding:7px 16px;border-radius:20px;font-size:13px;font-weight:600;font-family:var(--font);border:1.5px solid var(--border);background:#fff;color:var(--text-muted);cursor:pointer;transition:all .2s;text-decoration:none;display:inline-flex;align-items:center;gap:4px}
.filter-btn:hover,.filter-btn.active{background:var(--blue);border-color:var(--blue);color:#fff}
.filter-count{background:rgba(0,0,0,.08);border-radius:20px;padding:1px 6px;font-size:10px;margin-right:4px}
.filter-btn.active .filter-count{background:rgba(255,255,255,.3)}
.tags-cloud-bar{display:flex;flex-wrap:wrap;gap:6px;align-items:center;padding:14px 0 20px;border-bottom:1px solid var(--border);margin-bottom:28px}
.tags-cloud-label{font-size:12px;font-weight:700;color:var(--text-muted);white-space:nowrap}

/* ══════════════════════════════════════
   ARTICLE CONTENT (single.php)
   ══════════════════════════════════════ */
.article-content{font-size:17px;line-height:2;color:#1f2937}
.article-content h2{font-size:22px;font-weight:800;color:var(--navy);margin:36px 0 14px;padding-bottom:8px;border-bottom:2px solid var(--blue-light)}
.article-content h3{font-size:18px;font-weight:700;color:var(--navy);margin:26px 0 10px}
.article-content h4{font-size:16px;font-weight:700;color:var(--navy);margin:20px 0 8px}
.article-content p{margin-bottom:18px}
.article-content ul,.article-content ol{padding-right:24px;margin-bottom:18px}
.article-content li{margin-bottom:8px}
/* Inline code — light */
.article-content code{background:#eef2ff;color:#3730a3;padding:2px 7px;border-radius:5px;font-size:14px;direction:ltr;display:inline-block;font-family:'Courier New',monospace;border:1px solid #c7d2fe}
/* Code blocks — dark */
.article-content pre{background:#1e293b;color:#e2e8f0;padding:22px;border-radius:10px;overflow-x:auto;direction:ltr;margin:24px 0;font-size:14px}
.article-content pre code{background:none;color:inherit;border:none;padding:0}
/* MathJax — clean, no background */
.article-content mjx-container{color:var(--text) !important}
.article-content mjx-container[display="true"]{display:block;overflow-x:auto;padding:16px 0;margin:20px 0;text-align:center}
.article-content mjx-container *,.article-content .MathJax{background:transparent !important}
.article-content blockquote{border-right:4px solid var(--blue);padding:14px 20px;background:var(--blue-light);border-radius:0 10px 10px 0;margin:24px 0;color:#1e40af}
.article-content table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px}
.article-content th{background:var(--navy);color:#fff;padding:10px 14px;text-align:right}
.article-content td{padding:10px 14px;border-bottom:1px solid var(--border)}
.article-content tr:nth-child(even) td{background:var(--bg-soft)}
.article-content img{border-radius:10px;margin:24px auto;box-shadow:var(--shadow)}
.article-content a{color:var(--blue);text-decoration:underline}

/* ══════════════════════════════════════
   TOOL PAGE
   ══════════════════════════════════════ */
.tool-page-header{background:var(--bg-soft);padding:32px 0;border-bottom:1px solid var(--border)}
.tool-breadcrumb{font-size:13px;color:var(--text-muted);margin-bottom:16px;display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.tool-breadcrumb a{color:var(--blue)}
.bc-sep{color:#d1d5db}
.tool-header-inner{display:flex;align-items:flex-start;gap:18px}
.tool-header-info h1{font-size:clamp(20px,3.5vw,28px);font-weight:900;color:var(--navy);margin:10px 0 6px}
.tool-header-excerpt{color:var(--text-muted);font-size:14px;line-height:1.7;max-width:680px}
.tool-header-meta{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:8px}
.tool-diff-badge{font-size:11px;font-weight:700;padding:3px 10px;border-radius:20px}
.diff-beginner{background:#f0fdf4;color:#15803d;border:1px solid #bbf7d0}
.diff-medium{background:#fefce8;color:#854d0e;border:1px solid #fef08a}
.diff-advanced{background:#fff1f2;color:#be123c;border:1px solid #fecdd3}
.diff-professional{background:#1e293b;color:#e2e8f0;border:1px solid #334155}
.tool-version-pill{font-size:11px;color:#6b7280;background:#f3f4f6;padding:3px 8px;border-radius:20px}
.tool-tech-pill{font-size:11px;font-weight:700;padding:3px 10px;border-radius:20px;background:#eff6ff;color:#1d4ed8}
.tool-container{background:#fff;border:1px solid var(--border);border-radius:14px;overflow:hidden;margin-bottom:32px;box-shadow:var(--shadow)}
.tool-iframe-toolbar{display:flex;align-items:center;justify-content:space-between;padding:10px 16px;background:var(--bg-soft);border-bottom:1px solid var(--border)}
.tool-iframe-title{font-size:13px;font-weight:700;color:var(--navy)}
.tool-open-new{font-size:12px;color:var(--blue);font-weight:600}
.tool-container iframe{display:block;width:100%;border:none}
.tool-coming-soon{text-align:center;padding:80px 20px;background:linear-gradient(135deg,#f8faff,#eff6ff);border-radius:14px;margin-bottom:32px;border:1px solid var(--blue-light)}
.tool-coming-soon h3{font-size:22px;color:var(--navy);margin-bottom:10px}
.tool-not-configured{text-align:center;padding:48px 20px;background:var(--bg-soft);border-radius:14px;margin-bottom:32px;border:2px dashed var(--border)}
.tool-not-configured h3{font-size:18px;color:var(--navy);margin-bottom:8px}
.tool-description{max-width:760px;margin:0 auto 36px;padding:28px 32px;background:var(--bg-soft);border-radius:14px;border:1px solid var(--border)}
.tool-description h2{font-size:17px;font-weight:800;color:var(--navy);margin-bottom:16px}
.tool-tags-section{margin:0 auto 36px;max-width:760px;display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.tags-label{font-size:13px;color:var(--text-muted);font-weight:600}
.related-section{margin-top:48px;padding-top:36px;border-top:1px solid var(--border)}

/* ══════════════════════════════════════
   SINGLE ARTICLE
   ══════════════════════════════════════ */
.reading-progress{position:fixed;top:0;left:0;z-index:200;height:3px;background:var(--blue);width:0%;transition:width .1s linear}
.article-page-header{background:var(--bg-soft);padding:36px 0 28px;border-bottom:1px solid var(--border)}
.article-page-title{font-size:clamp(22px,4.5vw,36px);font-weight:900;color:var(--navy);margin:14px 0;line-height:1.3}
.article-page-meta{display:flex;flex-wrap:wrap;gap:16px;color:var(--text-muted);font-size:13px;margin-bottom:12px}
.article-header-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}
.article-featured-img{border-radius:14px;overflow:hidden;aspect-ratio:16/9;background:var(--bg-soft);box-shadow:var(--shadow)}
.article-tags-footer{margin-top:36px;padding:20px;background:var(--bg-soft);border-radius:10px;display:flex;align-items:center;flex-wrap:wrap;gap:10px}
.tags-footer-label{font-size:13px;color:var(--text-muted);font-weight:700}
.article-share{margin-top:24px;padding:20px;background:#fff;border:1px solid var(--border);border-radius:10px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.share-label{font-size:13px;font-weight:700;color:var(--text-muted)}
.share-btn{padding:7px 14px;border-radius:8px;font-size:13px;font-weight:700;cursor:pointer;border:none;text-decoration:none;display:inline-block;font-family:var(--font)}
.share-twitter{background:#000;color:#fff}
.share-whatsapp{background:#25d366;color:#fff}
.share-linkedin{background:#0a66c2;color:#fff}
.share-copy{background:var(--bg-soft);color:var(--text);border:1px solid var(--border)!important}
.article-nav{display:flex;gap:16px;margin-top:36px;padding-top:24px;border-top:1px solid var(--border)}
.article-nav-card{flex:1;padding:18px;border:1px solid var(--border);border-radius:12px;text-decoration:none;color:var(--text);transition:all .2s}
.article-nav-card:hover{border-color:var(--blue);box-shadow:var(--shadow-hover);color:var(--text)}
.article-nav-label{font-size:12px;color:var(--text-muted);margin-bottom:6px}
.article-nav-title{font-size:14px;font-weight:700;line-height:1.5}
.article-nav-prev{text-align:left}
.related-articles{margin-top:40px}
.related-title{font-size:18px;font-weight:800;color:var(--navy);margin-bottom:16px}
.related-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px}
.related-card{display:flex;flex-direction:column;border:1px solid var(--border);border-radius:10px;overflow:hidden;text-decoration:none;color:var(--text);transition:all .2s}
.related-card:hover{box-shadow:var(--shadow-hover);border-color:var(--blue);transform:translateY(-2px)}
.related-card-img{aspect-ratio:16/9;overflow:hidden;background:var(--bg-soft)}
.related-card-img img{width:100%;height:100%;object-fit:cover}
.related-card-body{padding:14px}
.related-card-title{font-size:14px;font-weight:700;line-height:1.5;margin-bottom:6px}
.related-card-date{font-size:12px;color:var(--text-muted)}

/* ══════════════════════════════════════
   EMPTY STATE / PAGINATION
   ══════════════════════════════════════ */
.empty-state{text-align:center;padding:60px 20px}
.empty-icon{font-size:56px;margin-bottom:14px}
.empty-state h3{font-size:20px;color:var(--navy);margin-bottom:8px}
.pagination-wrap{display:flex;justify-content:center;margin-top:48px}
.pagination-wrap .page-numbers{display:flex;gap:8px;list-style:none;padding:0;margin:0;flex-wrap:wrap;justify-content:center}
.pagination-wrap .page-numbers li a,.pagination-wrap .page-numbers li span{padding:8px 16px;border:1px solid var(--border);border-radius:8px;font-size:14px;font-weight:600;color:var(--text);text-decoration:none;transition:all .2s;display:block}
.pagination-wrap .page-numbers li .current{background:var(--blue);color:#fff;border-color:var(--blue)}
.pagination-wrap .page-numbers li a:hover{border-color:var(--blue);color:var(--blue)}

/* ══════════════════════════════════════
   FOOTER
   ══════════════════════════════════════ */
.site-footer{background:var(--navy);color:rgba(255,255,255,.8);padding:48px 0 24px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-brand .site-logo{color:#fff;margin-bottom:12px;display:block}
.footer-brand p{font-size:14px;opacity:.7;line-height:1.7}
.footer-col h4{color:#fff;font-size:14px;font-weight:700;margin-bottom:16px}
.footer-col ul{list-style:none}
.footer-col ul li{margin-bottom:8px}
.footer-col ul li a{font-size:14px;color:rgba(255,255,255,.65);transition:color .2s}
.footer-col ul li a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:20px;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.5)}

/* ══════════════════════════════════════
   RESPONSIVE
   ══════════════════════════════════════ */
@media(max-width:768px){
  .feature-cards{grid-template-columns:1fr}
  .feature-card-inner{padding:32px 24px;min-height:auto}
  .site-nav{display:none}
  .site-nav.open{display:flex;flex-direction:column;position:absolute;top:64px;left:0;right:0;background:#fff;padding:12px;border-bottom:1px solid var(--border);box-shadow:var(--shadow);gap:4px;z-index:99}
  .menu-toggle{display:block}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .section-header{flex-direction:column;align-items:flex-start;gap:8px}
  .tools-grid{grid-template-columns:repeat(2,1fr)}
  .articles-grid{grid-template-columns:1fr}
  .article-nav{flex-direction:column}
}
@media(max-width:480px){
  .tools-grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .hero{padding:52px 0}
  .section{padding:44px 0}
  .footer-bottom{flex-direction:column;gap:8px;text-align:center}
}

/* ══════════════════════════════════════
   NEWSLETTER SECTION
   ══════════════════════════════════════ */
.newsletter-section {
  background: var(--bg-soft);
  border-top: 1px solid var(--border);
  padding: 64px 0;
}
.newsletter-box {
  max-width: 560px;
  margin: 0 auto;
  text-align: center;
}
.newsletter-content h2 {
  font-size: 32px;
  font-weight: 900;
  color: var(--blue);
  margin-bottom: 12px;
}
.newsletter-content p {
  font-size: 15px;
  color: var(--text-muted);
  margin-bottom: 32px;
  line-height: 1.7;
}
.newsletter-form {
  display: flex;
  flex-direction: column;
  gap: 0;
  text-align: right;
}
.nl-label {
  display: block;
  font-size: 12px;
  font-weight: 700;
  color: var(--text-muted);
  margin-bottom: 6px;
  letter-spacing: .5px;
}
.nl-field-wrap { margin-bottom: 12px; }
.nl-input {
  width: 100%;
  padding: 14px 16px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-size: 15px;
  font-family: var(--font);
  color: var(--text);
  background: #fff;
  outline: none;
  transition: border-color .2s;
  direction: ltr;
  text-align: left;
}
.nl-input:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(37,99,235,.1); }
.nl-input-error { border-color: #ef4444; }
.nl-btn {
  width: 100%;
  padding: 14px 24px;
  background: var(--blue);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 700;
  font-family: var(--font);
  cursor: pointer;
  transition: background .2s;
}
.nl-btn:hover { background: var(--blue-dark); }
.nl-success {
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  color: #15803d;
  padding: 16px 20px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
}

/* ══════════════════════════════════════
   PAGE HEADER — full blue gradient (v3)
   ══════════════════════════════════════ */
.page-header {
  background: linear-gradient(135deg, var(--navy-deep) 0%, var(--navy) 55%, #1e40af 100%);
  color: #fff;
  padding: 56px 0;
  border-bottom: none;
  position: relative;
  overflow: hidden;
}
.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}
.page-header .container { position: relative; z-index: 1; }
.page-header h1 { font-size: 34px; font-weight: 900; color: #fff; margin-bottom: 10px; }
.page-header p  { color: rgba(255,255,255,.82); font-size: 16px; }

/* Also apply to tool-page-header */
.tool-page-header {
  background: linear-gradient(135deg, var(--navy-deep) 0%, var(--navy) 55%, #1e40af 100%);
  padding: 36px 0;
  border-bottom: none;
  position: relative;
  overflow: hidden;
}
.tool-page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}
.tool-page-header .container { position: relative; z-index: 1; }
.tool-breadcrumb { color: rgba(255,255,255,.6); }
.tool-breadcrumb a { color: rgba(255,255,255,.85); }
.tool-breadcrumb a:hover { color: #fff; }
.bc-sep { color: rgba(255,255,255,.35); }
.tool-header-info h1 { color: #fff; }
.tool-header-excerpt { color: rgba(255,255,255,.78); }
.tool-diff-badge.diff-beginner { background:rgba(255,255,255,.15); color:#fff; border-color:rgba(255,255,255,.25); }
.tool-diff-badge.diff-medium   { background:rgba(255,255,255,.15); color:#fff; border-color:rgba(255,255,255,.25); }
.tool-diff-badge.diff-advanced { background:rgba(255,255,255,.15); color:#fff; border-color:rgba(255,255,255,.25); }
.tool-version-pill { background:rgba(255,255,255,.15); color:rgba(255,255,255,.85); }
.tool-ref-pill     { background:rgba(255,255,255,.12); color:rgba(255,255,255,.8); border-color:rgba(255,255,255,.2); }
.tool-badge.badge-free { background:rgba(255,255,255,.18); color:#fff; }

/* article page header too */
.article-page-header {
  background: linear-gradient(135deg, var(--navy-deep) 0%, var(--navy) 55%, #1e40af 100%);
  padding: 40px 0 32px;
  border-bottom: none;
  position: relative;
  overflow: hidden;
}
.article-page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}
.article-page-header .container { position: relative; z-index: 1; }
.article-page-title  { color: #fff; }
.article-page-meta   { color: rgba(255,255,255,.7); }
.article-page-meta a { color: rgba(255,255,255,.85); }
.article-page-header .tag  { background:rgba(255,255,255,.18); color:#fff; border:1px solid rgba(255,255,255,.25); }
.article-page-header .tool-breadcrumb { color:rgba(255,255,255,.6); }
.article-page-header .tool-breadcrumb a { color:rgba(255,255,255,.85); }
.article-page-header .article-tag-pill { background:rgba(255,255,255,.15); color:#fff; border:1px solid rgba(255,255,255,.2); }

/* ══════════════════════════════════════
   NEWSLETTER — redesigned beautiful
   ══════════════════════════════════════ */
.newsletter-section {
  background: linear-gradient(160deg, #f0f7ff 0%, #e8f0fe 50%, #f5f0ff 100%);
  border-top: 1px solid #dbeafe;
  padding: 80px 0;
}
.newsletter-box {
  max-width: 520px;
  margin: 0 auto;
  text-align: center;
}
.newsletter-icon {
  width: 64px; height: 64px;
  background: linear-gradient(135deg, var(--blue), #7c3aed);
  border-radius: 20px;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 24px;
  font-size: 28px;
  box-shadow: 0 8px 24px rgba(37,99,235,.3);
}
.newsletter-content h2 {
  font-size: 34px;
  font-weight: 900;
  background: linear-gradient(135deg, var(--blue), #7c3aed);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 12px;
}
.newsletter-content p {
  font-size: 15px;
  color: var(--text-muted);
  margin-bottom: 36px;
  line-height: 1.7;
}
.newsletter-form { text-align: right; }
.nl-label {
  display: block;
  font-size: 12px;
  font-weight: 700;
  color: var(--text-muted);
  margin-bottom: 8px;
  letter-spacing: .6px;
  text-align: right;
}
.nl-field-wrap { margin-bottom: 12px; }
.nl-input {
  width: 100%;
  padding: 15px 18px;
  border: 2px solid #dbeafe;
  border-radius: 10px;
  font-size: 15px;
  font-family: var(--font);
  color: var(--text);
  background: #fff;
  outline: none;
  transition: border-color .2s, box-shadow .2s;
  direction: ltr;
  text-align: left;
  box-shadow: 0 1px 4px rgba(37,99,235,.08);
}
.nl-input:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 4px rgba(37,99,235,.12);
}
.nl-input-error { border-color: #ef4444; }
.nl-btn {
  width: 100%;
  padding: 15px 24px;
  background: linear-gradient(135deg, var(--blue), #4f46e5);
  color: #fff;
  border: none;
  border-radius: 10px;
  font-size: 16px;
  font-weight: 700;
  font-family: var(--font);
  cursor: pointer;
  transition: opacity .2s, transform .15s;
  box-shadow: 0 4px 16px rgba(37,99,235,.35);
  letter-spacing: .3px;
}
.nl-btn:hover { opacity: .92; transform: translateY(-1px); }
.nl-btn:active { transform: translateY(0); }
.nl-note {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
}
.nl-success {
  background: linear-gradient(135deg, #f0fdf4, #dcfce7);
  border: 2px solid #bbf7d0;
  color: #15803d;
  padding: 20px 24px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 700;
  text-align: center;
}

/* ══════════════════════════════════════
   SOCIAL SHARE BAR
   ══════════════════════════════════════ */
.share-bar {
  margin: 40px 0;
  padding: 24px 28px;
  background: linear-gradient(135deg, #f8faff, #eff6ff);
  border: 1px solid #dbeafe;
  border-radius: 14px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.share-bar-label {
  font-size: 14px;
  font-weight: 800;
  color: var(--navy);
  margin-left: 6px;
  white-space: nowrap;
}
.share-bar-btns { display: flex; flex-wrap: wrap; gap: 8px; flex: 1; }

.share-icon-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 16px;
  border-radius: 10px;
  font-size: 13px;
  font-weight: 700;
  font-family: var(--font);
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: transform .15s, opacity .2s;
  white-space: nowrap;
}
.share-icon-btn:hover { transform: translateY(-2px); opacity: .9; }
.share-icon-btn svg { flex-shrink: 0; }

.sib-whatsapp { background: #25d366; color: #fff; }
.sib-twitter  { background: #000;    color: #fff; }
.sib-linkedin { background: #0a66c2; color: #fff; }
.sib-facebook { background: #1877f2; color: #fff; }
.sib-copy     { background: #fff; color: var(--navy); border: 1.5px solid var(--border); }
.sib-copy:hover { border-color: var(--blue); color: var(--blue); }

@media(max-width:600px) {
  .share-bar { flex-direction: column; align-items: flex-start; }
  .share-icon-btn { font-size: 12px; padding: 8px 12px; }
}

/* ══════════════════════════════════════
   NEWSLETTER — final clean version
   ══════════════════════════════════════ */
.newsletter-section {
  background: linear-gradient(160deg,#f0f7ff 0%,#e8f0fe 50%,#f5f0ff 100%) !important;
  border-top: 1px solid #dbeafe;
  padding: 80px 20px !important;
}
.newsletter-box {
  max-width: 500px;
  margin: 0 auto !important;
  text-align: center !important;
}
.newsletter-icon {
  width: 68px; height: 68px;
  background: linear-gradient(135deg,#2563eb,#7c3aed);
  border-radius: 20px;
  display: flex !important; align-items: center; justify-content: center;
  margin: 0 auto 24px !important;
  font-size: 30px;
  box-shadow: 0 8px 24px rgba(37,99,235,.3);
}
.newsletter-content h2 {
  font-size: 36px !important;
  font-weight: 900 !important;
  background: linear-gradient(135deg,#2563eb,#7c3aed);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 12px !important;
  line-height: 1.2;
}
.newsletter-content p {
  font-size: 15px !important;
  color: #6b7280 !important;
  margin-bottom: 36px !important;
  line-height: 1.7;
}
.newsletter-form { text-align: right !important; }
.nl-label {
  display: block;
  font-size: 11px !important;
  font-weight: 700;
  color: #6b7280;
  margin-bottom: 8px;
  letter-spacing: .8px;
  text-transform: uppercase;
}
.nl-field-wrap { margin-bottom: 12px; }
.nl-input {
  width: 100% !important;
  padding: 15px 18px !important;
  border: 2px solid #dbeafe !important;
  border-radius: 10px !important;
  font-size: 15px !important;
  font-family: var(--font);
  color: #111827;
  background: #fff !important;
  outline: none;
  transition: border-color .2s, box-shadow .2s;
  direction: ltr;
  text-align: left;
}
.nl-input:focus {
  border-color: #2563eb !important;
  box-shadow: 0 0 0 4px rgba(37,99,235,.12) !important;
}
.nl-input-error { border-color: #ef4444 !important; }
.nl-btn {
  width: 100% !important;
  padding: 15px 24px !important;
  background: linear-gradient(135deg,#2563eb,#4f46e5) !important;
  color: #fff !important;
  border: none !important;
  border-radius: 10px !important;
  font-size: 16px !important;
  font-weight: 700;
  font-family: var(--font);
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(37,99,235,.35);
  letter-spacing: .3px;
}
.nl-btn:hover { opacity: .9; }
.nl-note {
  font-size: 12px !important;
  color: #9ca3af !important;
  margin-top: 12px !important;
  text-align: center !important;
  display: block;
}
.nl-success {
  background: linear-gradient(135deg,#f0fdf4,#dcfce7) !important;
  border: 2px solid #bbf7d0 !important;
  color: #15803d !important;
  padding: 20px !important;
  border-radius: 12px !important;
  font-size: 15px;
  font-weight: 700;
  text-align: center;
}

/* ══════════════════════════════════════
   SHARE BAR — final clean version
   ══════════════════════════════════════ */
.share-bar {
  margin: 36px 0 !important;
  padding: 20px 24px !important;
  background: linear-gradient(135deg,#f8faff,#eff6ff) !important;
  border: 1px solid #dbeafe !important;
  border-radius: 14px !important;
  display: flex !important;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.share-bar-label {
  font-size: 14px; font-weight: 800; color: #1e3a5f; white-space: nowrap;
}
.share-bar-btns { display: flex; flex-wrap: wrap; gap: 8px; flex: 1; }
.share-icon-btn {
  display: inline-flex !important;
  align-items: center;
  gap: 6px;
  padding: 9px 15px !important;
  border-radius: 9px !important;
  font-size: 13px !important;
  font-weight: 700;
  font-family: var(--font);
  cursor: pointer;
  text-decoration: none !important;
  transition: transform .15s, opacity .2s;
  white-space: nowrap;
  border: none;
  line-height: 1;
}
.share-icon-btn:hover { transform: translateY(-2px); opacity: .88; }
.sib-whatsapp { background: #25d366 !important; color: #fff !important; }
.sib-twitter  { background: #000    !important; color: #fff !important; }
.sib-linkedin { background: #0a66c2 !important; color: #fff !important; }
.sib-facebook { background: #1877f2 !important; color: #fff !important; }
.sib-copy     { background: #fff    !important; color: #1e3a5f !important; border: 1.5px solid #e5e7eb !important; }
.sib-copy:hover { border-color: #2563eb !important; color: #2563eb !important; }

@media(max-width:600px){
  .share-bar { flex-direction: column; align-items: flex-start; }
  .share-icon-btn { font-size: 12px !important; padding: 8px 12px !important; }
}