/* ═══════════════════════════════════════════════════════════ THEMES */
[data-theme="github"]{--bg:#0d1117;--bg-card:#161b22;--bg-input:#1f2428;--border:#30363d;--text:#e6edf3;--muted:#8b949e;--green:#3fb950;--accent:#58a6ff;--warn:#d29922;--glow:rgba(63,185,80,.2);--accent-glow:rgba(88,166,255,.18);--scanline:rgba(255,255,255,.012);--tag-bg:rgba(88,166,255,.1);--tag-border:rgba(88,166,255,.25);--tag-color:#58a6ff}
[data-theme="hacker"]{--bg:#000;--bg-card:#0a0a0a;--bg-input:#111;--border:#00ff41;--text:#00ff41;--muted:#007a1f;--green:#00ff41;--accent:#00ff41;--warn:#ff0;--glow:rgba(0,255,65,.35);--accent-glow:rgba(0,255,65,.3);--scanline:rgba(0,255,65,.025);--tag-bg:rgba(0,255,65,.08);--tag-border:rgba(0,255,65,.3);--tag-color:#00ff41}
[data-theme="retro"]{--bg:#1a0a00;--bg-card:#2a1200;--bg-input:#331800;--border:#ff6a00;--text:#ffcc88;--muted:#a05020;--green:#ff6a00;--accent:#ffaa00;--warn:#ff0;--glow:rgba(255,106,0,.3);--accent-glow:rgba(255,170,0,.2);--scanline:rgba(255,100,0,.03);--tag-bg:rgba(255,106,0,.1);--tag-border:rgba(255,106,0,.3);--tag-color:#ffaa00}
[data-theme="matrix"]{--bg:#000800;--bg-card:#001200;--bg-input:#001a00;--border:#00cc00;--text:#00ff00;--muted:#006600;--green:#00ff00;--accent:#00ff88;--warn:#ccff00;--glow:rgba(0,255,0,.35);--accent-glow:rgba(0,255,136,.25);--scanline:rgba(0,255,0,.022);--tag-bg:rgba(0,255,0,.07);--tag-border:rgba(0,255,0,.25);--tag-color:#00ff88}

/* ═══════════════════════════════════════════════════════════ BASE */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
body{background:var(--bg);font-family:'JetBrains Mono','Fira Code','Courier New',monospace;color:var(--text);min-height:100vh;transition:background .4s,color .4s}
.scanlines{position:fixed;inset:0;pointer-events:none;z-index:9999;background:repeating-linear-gradient(to bottom,transparent 0,transparent 3px,var(--scanline) 3px,var(--scanline) 4px)}

/* ═══════════════════════════════════════════════════════════ TOPBAR */
.topbar{position:sticky;top:0;z-index:100;background:linear-gradient(90deg,#12171e,#161d28);border-bottom:1px solid var(--border);padding:10px 20px;display:flex;align-items:center;justify-content:space-between;backdrop-filter:blur(8px)}
.topbar-left{display:flex;align-items:center;gap:12px}
.topbar-right{display:flex;align-items:center;gap:10px}
.topbar-title{color:var(--muted);font-size:.82rem;letter-spacing:.04em}
.terminal-dots{display:flex;gap:6px}
.dot{width:12px;height:12px;border-radius:50%}
.dot-red{background:#ff5f56;box-shadow:0 0 5px rgba(255,95,86,.5)}
.dot-yellow{background:#ffbd2e;box-shadow:0 0 5px rgba(255,189,46,.4)}
.dot-green{background:#27c93f;box-shadow:0 0 5px rgba(39,201,63,.4)}
.hdr-btn{background:var(--bg-input);border:1px solid var(--border);color:var(--muted);font-family:inherit;font-size:.75rem;padding:4px 10px;border-radius:4px;cursor:pointer;transition:all .2s}
.hdr-btn:hover{border-color:var(--green);color:var(--green);box-shadow:0 0 8px var(--glow)}
.mode-toggle{position:relative;display:flex;align-items:center;background:var(--bg-input);border:1px solid var(--border);border-radius:20px;padding:3px;cursor:pointer;overflow:hidden}
.mode-opt{position:relative;z-index:1;padding:4px 12px;border-radius:16px;font-size:.75rem;color:var(--muted);transition:color .25s;white-space:nowrap;cursor:pointer;display:flex;align-items:center;gap:5px;user-select:none}
.mode-slider{position:absolute;top:3px;bottom:3px;left:3px;border-radius:14px;background:linear-gradient(135deg,var(--green),var(--accent));box-shadow:0 0 10px var(--glow);transition:transform .3s cubic-bezier(.4,0,.2,1),width .3s;z-index:0}
[data-mode="terminal"] .mode-opt[data-m="terminal"]{color:#000;font-weight:700}
[data-mode="visual"]   .mode-opt[data-m="visual"]  {color:#000;font-weight:700}

/* ═══════════════════════════════════════════════════════════ MOBILE BAR */
.mobile-bar{display:none;width:100%;max-width:940px;background:var(--bg-card);border:1px solid var(--border);border-top:none;border-radius:0 0 8px 8px;padding:8px 10px;gap:6px;flex-wrap:wrap;justify-content:center}
.mob-btn{background:var(--bg-input);border:1px solid var(--border);color:var(--green);font-family:inherit;font-size:.75rem;padding:5px 11px;border-radius:4px;cursor:pointer;transition:all .15s}
.mob-btn:hover{background:var(--glow);border-color:var(--green)}

/* ═══════════════════════════════════════════════════════════ TERMINAL VIEW */
#terminal-view{display:flex;flex-direction:column;align-items:center;padding:20px 16px 80px}
.terminal-window{width:100%;max-width:940px;background:var(--bg-card);border:1px solid var(--border);border-radius:8px;box-shadow:0 20px 60px rgba(0,0,0,.6),0 0 60px var(--glow);animation:fadeUp .4s ease}
@keyframes fadeUp{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
.terminal-body{padding:14px 0 10px;overflow-y:auto;overflow-x:hidden;max-height:calc(100vh - 120px);scrollbar-width:thin;scrollbar-color:var(--border) transparent}
.terminal-body::-webkit-scrollbar{width:5px}
.terminal-body::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}

/* Nmap */
.nmap-block{font-size:.78rem;color:var(--muted);padding:10px 20px 6px;line-height:1.75;border-bottom:1px solid var(--border);margin-bottom:8px}
.nmap-block .nmap-cmd{color:var(--green);margin-bottom:5px}
.port-open{color:#3fb950}.port-info{color:var(--accent)}.nmap-done{color:var(--green);margin-top:4px}
.nmap-line{opacity:0;animation:fadeRow .18s forwards}
@keyframes fadeRow{from{opacity:0;transform:translateX(-5px)}to{opacity:1;transform:translateX(0)}}

/* Prompt / input */
.command-line{display:flex;align-items:center;gap:8px;padding:3px 20px;font-size:.9rem}
.prompt{color:var(--green);font-weight:700;text-shadow:0 0 8px var(--glow);flex-shrink:0}
.cmd-text{color:var(--text)}
.input-wrap{display:flex;align-items:center;flex:1;min-width:0}
#terminal-input{flex:0 1 auto;width:2px;min-width:2px;background:none;border:none;outline:none;color:var(--green);font-family:inherit;font-size:.9rem;caret-color:transparent}
#terminal-input::placeholder{color:var(--muted);opacity:.4;font-size:.82rem}
.blink-cursor{color:var(--green);animation:blink 1s step-end infinite;text-shadow:0 0 6px var(--glow);pointer-events:none;flex-shrink:0}
@keyframes blink{0%,100%{opacity:1}50%{opacity:0}}

/* Cards */
.terminal-card,.project-card,.contact-card{background:rgba(0,0,0,.22);border:1px solid var(--border);border-radius:6px;padding:18px 20px;margin:8px 20px;transition:box-shadow .25s}
.terminal-card{border-left:3px solid var(--green)}.project-card{border-left:3px solid var(--accent)}.contact-card{border-left:3px solid #3fb950}
.terminal-card:hover{box-shadow:0 0 18px var(--glow)}.project-card:hover{box-shadow:0 0 14px var(--accent-glow)}
.highlight{color:var(--green);font-size:1.15rem;font-weight:700;display:block;margin-bottom:8px;text-shadow:0 0 14px var(--glow)}
.project-card h2{color:var(--accent);font-size:1.05rem;margin-bottom:10px}.contact-card h2{color:#3fb950;font-size:1.05rem;margin-bottom:10px}
.tags{display:flex;flex-wrap:wrap;gap:6px;margin:8px 0}
.tag{background:var(--tag-bg);color:var(--tag-color);border:1px solid var(--tag-border);padding:2px 8px;border-radius:3px;font-size:.72rem}
.section{margin-top:12px;padding-top:12px;border-top:1px solid var(--border)}
.section h3{color:var(--accent);font-size:.82rem;margin-bottom:8px;letter-spacing:.05em}
.section p{color:var(--text);font-size:.83rem;line-height:1.75}
.section p .hl{color:var(--green)}.dim{color:var(--muted);font-size:.78rem}.indent{padding-left:14px}
.description p{color:var(--muted);font-size:.85rem;line-height:1.7;margin-bottom:3px}.description p strong{color:var(--text)}
.project-card ul,.response ul{margin:10px 0;padding:0;list-style:none}
.project-card ul li,.response ul li{color:var(--muted);font-size:.83rem;line-height:1.75;padding-left:16px;position:relative}
.project-card ul li::before,.response ul li::before{content:"▸";color:var(--green);position:absolute;left:0}
.project-links,.contact-links{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.project-links a,.contact-link{color:var(--green);text-decoration:none;padding:5px 13px;border:1px solid rgba(255,255,255,.1);border-radius:4px;background:rgba(255,255,255,.03);font-size:.8rem;display:flex;align-items:center;gap:7px;transition:all .2s}
.project-links a:hover,.contact-link:hover{border-color:var(--green);background:var(--glow);transform:translateY(-2px);box-shadow:0 4px 14px var(--glow)}
.directory-list{padding:5px 20px 10px;display:flex;flex-wrap:wrap;gap:14px}
.directory{color:var(--accent);font-weight:700;font-size:.88rem}.file{color:var(--text);font-size:.88rem}
.command-hint{margin-top:12px;padding-top:10px;border-top:1px solid var(--border);color:var(--muted);font-size:.8rem;line-height:1.7}
.cmd{background:var(--bg-input);color:var(--green);padding:1px 6px;border-radius:3px;border:1px solid var(--border);font-size:.78rem}
.iframe-container{margin:12px 0 4px}.iframe-container iframe{display:block;width:327px;height:84px;border:none;border-radius:4px}
.cert-image{width:360px;max-width:100%;height:auto;margin:12px 0;display:block;border:1px solid var(--border);border-radius:5px}
#suggestions{padding:2px 20px 4px;color:var(--muted);font-size:.78rem;display:flex;flex-wrap:wrap;gap:10px}
.response{font-size:.85rem}.response>p{padding:4px 20px;color:var(--muted)}
.help-table{padding:8px 20px}.help-row{display:flex;gap:16px;padding:4px 0;font-size:.82rem;line-height:1.7;border-bottom:1px solid rgba(255,255,255,.04)}.help-row:last-child{border-bottom:none}.help-cmd{color:var(--green);min-width:165px;flex-shrink:0}.help-desc{color:var(--muted)}
.tree-output{padding:6px 20px;font-size:.82rem;line-height:1.9}.tree-dir{color:var(--accent);font-weight:700}.tree-file{color:var(--muted)}
.grep-match{padding:3px 20px;font-size:.82rem}.grep-file{color:var(--accent)}.grep-text{color:var(--muted)}.grep-hl{color:var(--warn);font-weight:700;background:rgba(210,153,34,.12);padding:0 2px;border-radius:2px}
.matrix-rain{font-size:.75rem;color:var(--green);padding:8px 20px;line-height:1.5;opacity:.85}
.easter-card{padding:10px 20px;border-left:3px solid var(--warn);margin:6px 20px;background:rgba(255,255,255,.02);border-radius:4px}.easter-card p{color:var(--muted);font-size:.83rem;line-height:1.7}
.dl-btn{display:inline-flex;align-items:center;gap:8px;background:var(--glow);border:1px solid var(--green);color:var(--green);font-family:inherit;font-size:.83rem;padding:7px 18px;border-radius:4px;cursor:pointer;text-decoration:none;transition:all .2s}
.dl-btn:hover{box-shadow:0 0 14px var(--glow);transform:translateY(-2px)}
.download-bar{padding:8px 20px;display:flex;gap:12px;align-items:center;flex-wrap:wrap}.download-bar span{color:var(--muted);font-size:.78rem}
.slide-in{animation:slideIn .22s ease forwards}
@keyframes slideIn{from{opacity:0;transform:translateY(7px)}to{opacity:1;transform:translateY(0)}}

/* ═══════════════════════════════════════════════════════════ GUIDE GRID */
.guide-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:9px;margin-top:6px}
.guide-card{background:rgba(255,255,255,.02);border:1px solid var(--border);border-radius:6px;padding:11px 13px;display:flex;gap:11px;cursor:pointer;transition:all .2s ease;align-items:flex-start;user-select:none}
.guide-card:hover{border-color:var(--green);background:var(--glow);transform:translateY(-2px);box-shadow:0 4px 14px var(--glow)}
.guide-card:hover .guide-icon{color:var(--green)}
.guide-icon{color:var(--accent);font-size:.95rem;flex-shrink:0;margin-top:3px;width:16px;text-align:center;transition:color .2s}
.guide-body{display:flex;flex-direction:column;gap:2px;min-width:0}
.guide-label{color:var(--text);font-size:.81rem;font-weight:700}
.guide-cmd{margin:1px 0}
.guide-desc{color:var(--muted);font-size:.74rem;line-height:1.5}

/* ═══════════════════════════════════════════════════════════ VISUAL MODE */
#visual-view{max-width:1100px;margin:0 auto;padding:0 20px 60px;animation:fadeUp .35s ease}
.v-hero{padding:48px 0 32px;border-bottom:1px solid var(--border)}
.v-hero-inner{display:flex;align-items:center;gap:32px;flex-wrap:wrap}
.v-avatar{width:90px;height:90px;border-radius:50%;background:linear-gradient(135deg,var(--green),var(--accent));display:flex;align-items:center;justify-content:center;font-size:1.8rem;font-weight:700;color:#000;flex-shrink:0;box-shadow:0 0 30px var(--glow);letter-spacing:-.02em}
.v-hero-text h1{font-size:2rem;font-weight:700;color:var(--text);margin-bottom:6px}
.v-subtitle{color:var(--muted);font-size:.9rem;margin-bottom:14px}
.v-tags{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:18px}
.v-tag{background:var(--tag-bg);color:var(--tag-color);border:1px solid var(--tag-border);padding:3px 10px;border-radius:20px;font-size:.75rem;transition:all .2s}
.v-tag:hover{box-shadow:0 0 10px var(--accent-glow)}
.v-links{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.v-link{width:38px;height:38px;border-radius:8px;background:var(--bg-card);border:1px solid var(--border);color:var(--muted);font-size:1rem;display:flex;align-items:center;justify-content:center;text-decoration:none;transition:all .2s}
.v-link:hover{border-color:var(--green);color:var(--green);box-shadow:0 0 12px var(--glow);transform:translateY(-2px)}
.v-link-dl{width:auto;padding:0 14px;gap:7px;color:var(--green);border-color:var(--green);background:var(--glow);font-size:.82rem}
.v-nav{display:flex;gap:0;border-bottom:1px solid var(--border);overflow-x:auto;scrollbar-width:none}
.v-nav::-webkit-scrollbar{display:none}
.v-tab{background:none;border:none;border-bottom:2px solid transparent;color:var(--muted);font-family:inherit;font-size:.85rem;padding:14px 22px;cursor:pointer;white-space:nowrap;transition:all .2s;margin-bottom:-1px}
.v-tab:hover{color:var(--text)}.v-tab.active{color:var(--green);border-bottom-color:var(--green)}
.v-section{display:none;padding:32px 0}.v-section.active{display:block;animation:fadeUp .3s ease}
.v-about-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.v-card{background:var(--bg-card);border:1px solid var(--border);border-radius:8px;padding:20px;transition:box-shadow .2s,border-color .2s}
.v-card:hover{border-color:var(--green);box-shadow:0 0 20px var(--glow)}
.v-card-title{font-size:.72rem;font-weight:700;color:var(--green);letter-spacing:.1em;text-transform:uppercase;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.v-card-title i{font-size:.85rem}
.v-card p{color:var(--muted);font-size:.83rem;line-height:1.75;margin-bottom:4px}.v-card p strong{color:var(--text)}.v-card p .hl{color:var(--green)}.v-card p .dim{color:var(--muted);font-size:.76rem}
.v-skill-bar{margin-bottom:10px}.v-skill-label{display:flex;justify-content:space-between;font-size:.78rem;color:var(--muted);margin-bottom:4px}.v-skill-label span{color:var(--green)}
.v-bar-track{background:var(--border);border-radius:4px;height:5px;overflow:hidden}.v-bar-fill{height:100%;border-radius:4px;background:linear-gradient(90deg,var(--green),var(--accent));transition:width 1s ease}
.v-thm{margin-top:14px}.v-thm iframe{border:none;border-radius:4px;width:327px;height:84px;max-width:100%}
.v-project-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:18px}
.v-proj-card{background:var(--bg-card);border:1px solid var(--border);border-left:3px solid var(--accent);border-radius:8px;padding:20px;display:flex;flex-direction:column;gap:10px;transition:all .25s}
.v-proj-card:hover{border-color:var(--accent);box-shadow:0 0 20px var(--accent-glow);transform:translateY(-3px)}
.v-proj-title{color:var(--accent);font-size:.95rem;font-weight:700}
.v-proj-desc{color:var(--muted);font-size:.8rem;line-height:1.65;flex:1}
.v-proj-tags{display:flex;flex-wrap:wrap;gap:5px}.v-proj-tag{background:var(--tag-bg);color:var(--tag-color);border:1px solid var(--tag-border);padding:2px 7px;border-radius:3px;font-size:.68rem}
.v-proj-links{display:flex;gap:8px;flex-wrap:wrap}
.v-proj-link{color:var(--green);text-decoration:none;font-size:.78rem;border:1px solid var(--border);padding:4px 10px;border-radius:4px;display:flex;align-items:center;gap:6px;transition:all .2s}
.v-proj-link:hover{border-color:var(--green);background:var(--glow)}
.v-timeline{position:relative;padding-left:24px}
.v-timeline::before{content:'';position:absolute;left:6px;top:0;bottom:0;width:1px;background:var(--border)}
.v-tl-item{position:relative;margin-bottom:28px}
.v-tl-item::before{content:'';position:absolute;left:-21px;top:5px;width:10px;height:10px;border-radius:50%;background:var(--green);box-shadow:0 0 8px var(--glow)}
.v-tl-header{display:flex;justify-content:space-between;align-items:flex-start;gap:8px;flex-wrap:wrap;margin-bottom:6px}
.v-tl-role{color:var(--text);font-size:.9rem;font-weight:700}.v-tl-period{color:var(--green);font-size:.75rem;white-space:nowrap}
.v-tl-org{color:var(--muted);font-size:.8rem;margin-bottom:8px}
.v-tl-tags{display:flex;flex-wrap:wrap;gap:5px;margin-bottom:8px}.v-tl-tag{background:var(--tag-bg);color:var(--tag-color);border:1px solid var(--tag-border);padding:2px 7px;border-radius:3px;font-size:.68rem}
.v-tl-points{list-style:none;padding:0}.v-tl-points li{color:var(--muted);font-size:.8rem;line-height:1.7;padding-left:14px;position:relative}.v-tl-points li::before{content:'▸';color:var(--green);position:absolute;left:0}
.v-cert-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px}
.v-cert-card{background:var(--bg-card);border:1px solid var(--border);border-left:3px solid var(--green);border-radius:8px;padding:18px;display:flex;flex-direction:column;gap:8px;transition:all .2s}
.v-cert-card:hover{box-shadow:0 0 16px var(--glow);transform:translateY(-2px)}
.v-cert-title{color:var(--green);font-size:.88rem;font-weight:700}.v-cert-org{color:var(--muted);font-size:.78rem}.v-cert-date{color:var(--accent);font-size:.72rem}
.v-contact-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:14px}
.v-contact-item{background:var(--bg-card);border:1px solid var(--border);border-radius:8px;padding:18px;display:flex;flex-direction:column;align-items:center;gap:10px;text-decoration:none;transition:all .25s;color:var(--muted)}
.v-contact-item:hover{border-color:var(--green);color:var(--green);box-shadow:0 0 16px var(--glow);transform:translateY(-3px)}
.v-contact-item i{font-size:1.6rem}.v-contact-label{font-size:.8rem;font-weight:700}.v-contact-value{font-size:.72rem;color:var(--muted);text-align:center;word-break:break-all}
.v-main{padding:0 0 40px}

/* ═══════════════════════════════════════════════════════════ RESPONSIVE */
@media(max-width:700px){
    body{padding-bottom:60px}
    #terminal-view{padding:10px 0 80px}
    .terminal-window{border-radius:0}
    .mobile-bar{display:flex}
    .v-about-grid{grid-template-columns:1fr}
    .topbar{padding:8px 12px}
    .mode-opt{padding:4px 8px;font-size:.7rem}
    .v-hero-inner{gap:20px}
    .v-hero-text h1{font-size:1.5rem}
    .v-tl-item::before{left:-19px}
    .guide-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:400px){.guide-grid{grid-template-columns:1fr}}