/* ===== CyberSec Hub — Dark Blue/Black + Green Theme ===== */
:root{
  --bg:#050b14; --bg2:#081120; --card:#0a1628; --card2:#0d1b30;
  --green:#00e676; --green-dim:#00b35c; --green-glow:rgba(0,230,118,.25);
  --blue:#1a3a5c; --text:#e8f0f8; --muted:#8fa3bd; --border:rgba(0,230,118,.14);
  --radius:14px; --shadow:0 10px 30px rgba(0,0,0,.5);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Inter',system-ui,-apple-system,'Segoe UI',sans-serif;background:var(--bg);color:var(--text);line-height:1.7;overflow-x:hidden}
.container{max-width:1120px;margin:0 auto;padding:0 20px}
a{color:inherit;text-decoration:none}
.green{color:var(--green)}

/* ---------- Navbar ---------- */
.navbar{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(5,11,20,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}
.nav-inner{max-width:1120px;margin:0 auto;padding:13px 20px;display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.2rem}
.brand-icon{font-size:1.5rem;filter:drop-shadow(0 0 8px var(--green-glow))}
.brand .green{color:var(--green)}
.nav-links{display:flex;list-style:none;gap:4px;align-items:center}
.nav-links a{padding:8px 15px;border-radius:24px;font-weight:500;font-size:.92rem;transition:background .2s,color .2s}
.nav-links a:hover{background:rgba(0,230,118,.1);color:var(--green)}
.nav-toggle{display:none;background:none;border:none;color:var(--green);font-size:1.6rem;cursor:pointer}
@media(max-width:820px){.nav-links{display:none;position:absolute;top:100%;left:0;right:0;background:var(--bg2);flex-direction:column;padding:12px;gap:2px;border-bottom:1px solid var(--border)}.nav-links.open{display:flex}.nav-toggle{display:block}}

/* ---------- Hero ---------- */
.hero{min-height:88vh;display:flex;align-items:center;justify-content:center;text-align:center;position:relative;overflow:hidden;background:radial-gradient(ellipse 80% 60% at 50% 40%,#0a2540 0%,var(--bg) 70%);padding:110px 20px 60px}
.hero::before{content:'';position:absolute;inset:0;background-image:radial-gradient(rgba(0,230,118,.07) 1px,transparent 1px);background-size:34px 34px;pointer-events:none}
.hero-content{position:relative;z-index:1;max-width:760px}
.hero-badge{display:inline-block;padding:7px 20px;border:1px solid rgba(0,230,118,.4);border-radius:30px;font-size:.85rem;color:var(--green);background:rgba(0,230,118,.06);margin-bottom:20px;letter-spacing:.4px}
.hero h1{font-size:clamp(2.2rem,6vw,3.8rem);font-weight:800;line-height:1.15;margin-bottom:16px}
.hero-sub{font-size:1.1rem;color:var(--muted);max-width:600px;margin:0 auto 32px}
.hero-buttons{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-bottom:44px}
.btn{display:inline-block;padding:13px 32px;border-radius:30px;font-weight:600;font-size:1rem;transition:transform .2s,box-shadow .2s,filter .2s;cursor:pointer}
.btn:hover{transform:translateY(-3px)}
.btn-green{background:linear-gradient(135deg,#00e676,#00b35c);color:#02120a;box-shadow:0 8px 24px var(--green-glow)}
.btn-green:hover{filter:brightness(1.08)}
.btn-outline{border:2px solid rgba(0,230,118,.5);color:var(--green)}
.btn-outline:hover{background:rgba(0,230,118,.1)}
.hero-stats{display:flex;gap:38px;justify-content:center;flex-wrap:wrap}
.stat{display:flex;flex-direction:column;align-items:center}
.stat-num{font-size:2rem;font-weight:800;color:var(--green)}
.stat-label{font-size:.85rem;color:var(--muted)}
.scroll-down{position:absolute;bottom:22px;left:50%;transform:translateX(-50%);font-size:1.8rem;color:var(--green);animation:bounce 1.8s infinite}
@keyframes bounce{0%,100%{transform:translate(-50%,0)}50%{transform:translate(-50%,10px)}}

/* ---------- Sections ---------- */
.section{padding:80px 0}
.section-dark{background:linear-gradient(180deg,var(--bg2),var(--bg))}
.section-head{text-align:center;max-width:640px;margin:0 auto 40px}
.section-tag{display:inline-block;padding:6px 18px;border-radius:30px;font-size:.85rem;background:rgba(0,230,118,.08);color:var(--green);border:1px solid rgba(0,230,118,.3);margin-bottom:12px}
.section-head h2{font-size:clamp(1.7rem,4vw,2.4rem);font-weight:700;margin-bottom:10px}
.section-head p{color:var(--muted)}

/* ---------- Category cards ---------- */
.cat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px}
.cat-card{background:linear-gradient(160deg,var(--card),var(--card2));border:1px solid var(--border);border-radius:var(--radius);padding:28px 22px;text-align:center;transition:transform .25s,box-shadow .25s,border-color .25s;display:block}
.cat-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:rgba(0,230,118,.45)}
.cat-emoji{font-size:2.8rem;display:block;margin-bottom:12px}
.cat-card h3{font-size:1.15rem;margin-bottom:8px}
.cat-card p{font-size:.88rem;color:var(--muted);margin-bottom:12px}
.cat-count{font-size:.8rem;color:var(--green);font-weight:600}

/* ---------- Article cards ---------- */
.art-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px}
.art-card{background:linear-gradient(160deg,var(--card),var(--card2));border:1px solid var(--border);border-radius:var(--radius);padding:24px 20px;transition:transform .25s,box-shadow .25s,border-color .25s;display:block}
.art-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:rgba(0,230,118,.45)}
.art-card .art-cat{font-size:.75rem;color:var(--green);font-weight:700;text-transform:uppercase;letter-spacing:.6px}
.art-card h3{font-size:1.05rem;margin:8px 0;line-height:1.45}
.art-card p{font-size:.87rem;color:var(--muted)}
.art-card .read-more{display:inline-block;margin-top:12px;color:var(--green);font-weight:600;font-size:.9rem}

/* ---------- Article page ---------- */
.article-hero{background:linear-gradient(160deg,#0a2540,#050b14);padding:120px 20px 46px;text-align:center}
.article-hero h1{font-size:clamp(1.6rem,4.5vw,2.6rem);max-width:820px;margin:14px auto;line-height:1.3}
.article-meta{color:var(--muted);font-size:.85rem;margin-top:10px}
.article-body{max-width:800px;margin:0 auto;padding:40px 20px}
.article-body h2{color:var(--green);margin:32px 0 12px;font-size:1.35rem}
.article-body h3{margin:22px 0 10px;font-size:1.08rem;color:var(--text)}
.article-body p{margin-bottom:14px;color:#d4e0ee}
.article-body ul,.article-body ol{padding-left:22px;margin:12px 0;color:#d4e0ee}
.article-body li{margin-bottom:8px}
.article-body code{background:rgba(0,230,118,.08);border:1px solid rgba(0,230,118,.2);padding:2px 8px;border-radius:6px;font-size:.88em;color:var(--green)}
.article-body pre{background:#02060c;border:1px solid var(--border);border-radius:10px;padding:16px;overflow-x:auto;margin:14px 0}
.article-body pre code{background:none;border:none;padding:0}
.ethical-box{background:rgba(255,193,7,.07);border:1px solid rgba(255,193,7,.4);border-radius:10px;padding:16px;margin:20px 0;color:#ffe9b0}
.ethical-box strong{color:#ffc107}
.tip-box{background:rgba(0,230,118,.06);border:1px solid rgba(0,230,118,.3);border-radius:10px;padding:16px;margin:20px 0}
.tip-box strong{color:var(--green)}
.breadcrumb{max-width:800px;margin:0 auto;padding:100px 20px 0;font-size:.85rem;color:var(--muted)}
.breadcrumb a{color:var(--green)}

/* ---------- Newsletter ---------- */
.newsletter{background:linear-gradient(135deg,#0a2540,#081120);border:1px solid var(--border);border-radius:20px;padding:44px 30px;text-align:center;max-width:720px;margin:0 auto}
.newsletter h2{margin-bottom:10px}
.newsletter p{color:var(--muted);margin-bottom:22px}
.news-form{display:flex;gap:10px;max-width:460px;margin:0 auto;flex-wrap:wrap;justify-content:center}
.news-form input{flex:1;min-width:220px;padding:13px 20px;border-radius:30px;border:2px solid rgba(0,230,118,.25);background:rgba(255,255,255,.04);color:#fff;font-size:1rem;outline:none;font-family:inherit}
.news-form input:focus{border-color:var(--green)}

/* ---------- Static pages ---------- */
.page-wrap{max-width:800px;margin:0 auto;padding:120px 20px 60px}
.page-wrap h1{margin-bottom:20px}
.page-wrap h2{color:var(--green);margin:28px 0 10px;font-size:1.25rem}
.page-wrap p,.page-wrap li{color:#d4e0ee;margin-bottom:12px}
.page-wrap ul{padding-left:22px}

/* ---------- Footer ---------- */
.footer{background:#02060c;border-top:1px solid var(--border);padding:44px 0 28px;text-align:center;margin-top:40px}
.footer-brand{font-size:1.3rem;font-weight:800;margin-bottom:8px}
.footer p{color:var(--muted);font-size:.9rem}
.footer-links{display:flex;gap:18px;justify-content:center;flex-wrap:wrap;margin:16px 0}
.footer-links a{color:var(--muted);font-size:.9rem}
.footer-links a:hover{color:var(--green)}
.copyright{font-size:.82rem;color:#5a6b82;margin-top:14px}

/* ---------- WhatsApp floating button ---------- */
.wa-float{position:fixed;bottom:22px;right:22px;width:58px;height:58px;background:#25D366;border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 16px rgba(37,211,102,.45);z-index:999;transition:transform .2s,box-shadow .2s}
.wa-float:hover{transform:scale(1.1);box-shadow:0 6px 22px rgba(37,211,102,.6)}
.wa-float svg{width:32px;height:32px;fill:#fff}

/* ---------- About the Developer ---------- */
.dev-section{background:var(--bg2);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.dev-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;margin-top:34px}
.dev-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .25s}
.dev-card:hover{transform:translateY(-5px)}
.dev-card img{width:100%;height:340px;object-fit:cover;object-position:top;display:block}
.dev-card .dev-info{padding:22px}
.dev-card .dev-info h3{font-size:1.15rem;margin-bottom:8px;color:var(--green)}
.dev-card .dev-info p{color:var(--muted);font-size:.95rem}
.dev-name{text-align:center;margin-top:34px;font-size:1.5rem;font-weight:800}
.dev-name .green{color:var(--green)}
.dev-tagline{text-align:center;color:var(--muted);margin-top:8px;max-width:640px;margin-left:auto;margin-right:auto}
@media(max-width:700px){.dev-grid{grid-template-columns:1fr}.dev-card img{height:300px}}

/* ---------- Interactive tools ---------- */
.tool-wrap{max-width:760px;margin:0 auto;padding:120px 20px 40px}
.tool-wrap h1{margin-bottom:8px}
.tool-wrap .tool-sub{color:var(--muted);margin-bottom:26px}
.tool-card{background:linear-gradient(160deg,var(--card),var(--card2));border:1px solid var(--border);border-radius:var(--radius);padding:28px 24px;box-shadow:var(--shadow)}
.tool-field{margin-bottom:18px}
.tool-field label{display:block;font-weight:600;margin-bottom:8px;font-size:.95rem}
.tool-field input[type=text],.tool-field input[type=number],.tool-field textarea,.tool-field select{width:100%;padding:13px 16px;border-radius:10px;border:2px solid rgba(0,230,118,.25);background:rgba(255,255,255,.04);color:#fff;font-size:1rem;font-family:inherit;outline:none}
.tool-field input:focus,.tool-field textarea:focus{border-color:var(--green)}
.tool-field textarea{min-height:110px;resize:vertical}
.tool-row{display:flex;gap:12px;flex-wrap:wrap;margin:18px 0}
.tool-check{display:flex;align-items:center;gap:8px;font-size:.92rem;color:var(--muted)}
.tool-check input{accent-color:#00e676;width:17px;height:17px}
.strength-meter{height:12px;border-radius:8px;background:rgba(255,255,255,.07);overflow:hidden;margin:14px 0 6px}
.strength-fill{height:100%;width:0%;border-radius:8px;transition:width .4s,background .4s}
.strength-label{font-weight:700;font-size:1.05rem;margin-bottom:4px}
.tool-result{background:#02060c;border:1px solid var(--border);border-radius:10px;padding:16px;margin-top:16px;word-break:break-all;font-family:ui-monospace,monospace;font-size:.92rem;color:var(--green)}
.tool-result .res-label{color:var(--muted);font-family:inherit;font-size:.8rem;display:block;margin-bottom:4px}
.tool-tips{margin-top:18px}
.tool-tips li{margin-bottom:8px;color:#d4e0ee;font-size:.93rem}
.copy-btn{background:rgba(0,230,118,.12);border:1px solid rgba(0,230,118,.4);color:var(--green);border-radius:8px;padding:6px 14px;font-size:.82rem;cursor:pointer;margin-top:8px}
.copy-btn:hover{background:rgba(0,230,118,.22)}
/* glossary */
.gloss-search{max-width:560px;margin:0 auto 30px;display:block;width:100%;padding:14px 22px;border-radius:30px;border:2px solid rgba(0,230,118,.3);background:rgba(255,255,255,.04);color:#fff;font-size:1rem;font-family:inherit;outline:none}
.gloss-search:focus{border-color:var(--green)}
.gloss-term{background:linear-gradient(160deg,var(--card),var(--card2));border:1px solid var(--border);border-radius:var(--radius);padding:18px 20px;margin-bottom:12px}
.gloss-term h3{color:var(--green);font-size:1.05rem;margin-bottom:6px}
.gloss-term p{color:#d4e0ee;font-size:.93rem;margin:0}
/* faq */
.faq-item{background:linear-gradient(160deg,var(--card),var(--card2));border:1px solid var(--border);border-radius:var(--radius);margin-bottom:12px;overflow:hidden}
.faq-q{width:100%;text-align:left;background:none;border:none;color:var(--text);font-size:1rem;font-weight:600;padding:18px 20px;cursor:pointer;font-family:inherit;display:flex;justify-content:space-between;align-items:center;gap:12px}
.faq-q:hover{color:var(--green)}
.faq-q .faq-icon{color:var(--green);font-size:1.2rem;flex-shrink:0}
.faq-a{display:none;padding:0 20px 18px;color:#d4e0ee;font-size:.94rem}
.faq-item.open .faq-a{display:block}
.faq-item.open .faq-icon{transform:rotate(45deg)}

.related-box{background:#0f172a;border:1px solid #1e293b;border-radius:12px;padding:22px;margin-top:36px}
.related-box h3{margin:0 0 8px;color:#00e676;font-size:1.15rem}
.related-box ul{list-style:none;padding:0;margin:0}
.related-box li{margin:10px 0}
.related-box a{color:#38bdf8;text-decoration:none}
.related-box a:hover{text-decoration:underline;color:#7dd3fc}