/* ═══════════════════════════════════════════
   OpenSecTools — Gradient Mix Theme
   ═══════════════════════════════════════════ */

:root {
  --bg:        #06080d;
  --bg2:       #0c1018;
  --surface:   #111827;
  --surface2:  #1a2235;
  --border:    rgba(255,255,255,0.06);
  --border2:   rgba(255,255,255,0.10);
  --text:      #e2e8f0;
  --text2:     #8892a4;
  --text3:     #4a5568;
  --accent:    #a855f7;
  --accent-h:  #9333ea;
  --cyan:      #06b6d4;
  --rose:      #f43f5e;
  --green:     #10b981;
  --amber:     #f59e0b;
  --red:       #ef4444;
  --blue:      #3b82f6;
  --grad:      linear-gradient(135deg, #06b6d4, #a855f7, #f43f5e);
  --grad-subtle: linear-gradient(135deg, rgba(6,182,212,0.15), rgba(168,85,247,0.15), rgba(244,63,94,0.15));
  --font: 'Inter', -apple-system, sans-serif;
  --mono: 'JetBrains Mono', monospace;
  --r: 12px;
  --r-sm: 8px;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg);color:var(--text);
  font-family:var(--font);font-size:14px;line-height:1.5;
  min-height:100vh;-webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{text-decoration:none;color:inherit}
img{display:block}

/* ── BACKGROUND EFFECTS ──────────────────── */
body::before {
  content:'';
  position:fixed;top:0;left:0;right:0;bottom:0;
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(168,85,247,0.07) 0%, transparent 50%),
    radial-gradient(ellipse 50% 40% at 85% 50%, rgba(6,182,212,0.05) 0%, transparent 50%),
    radial-gradient(ellipse 50% 40% at 15% 70%, rgba(244,63,94,0.04) 0%, transparent 50%);
  pointer-events:none;z-index:0;
}

/* Dot grid pattern */
body::after {
  content:'';
  position:fixed;top:0;left:0;right:0;bottom:0;
  background-image:radial-gradient(rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size:24px 24px;
  pointer-events:none;z-index:0;
}

/* ── HEADER ─────────────────────────────── */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(6,8,13,0.85);
  backdrop-filter:blur(16px) saturate(180%);
  border-bottom:1px solid var(--border);
}
.header-inner{
  max-width:1280px;margin:0 auto;padding:0 24px;
  height:56px;display:flex;align-items:center;justify-content:space-between;
}
.logo{
  display:flex;align-items:center;gap:10px;
  font-weight:700;font-size:17px;letter-spacing:-0.03em;color:#fff;
}
.logo svg{color:var(--accent);flex-shrink:0;filter:drop-shadow(0 0 8px rgba(168,85,247,0.4))}
.header-nav{display:flex;align-items:center;gap:2px}
.nav-item{
  display:flex;align-items:center;gap:6px;
  padding:7px 14px;border-radius:var(--r-sm);
  font-size:13px;font-weight:500;color:var(--text2);
  transition:all 0.2s ease;
}
.nav-item:hover{background:rgba(255,255,255,0.04);color:var(--text)}
.nav-item.active{
  background:var(--accent);color:#fff;
  box-shadow:0 0 20px rgba(168,85,247,0.3);
}

/* ── HERO ──────────────────────────────── */
.hero {
  position:relative;
  text-align:center;
  padding:64px 24px 48px;
  overflow:hidden;
}
.hero::before {
  content:'';
  position:absolute;top:-120px;left:50%;transform:translateX(-50%);
  width:700px;height:400px;
  background:
    radial-gradient(ellipse 40% 60% at 30% 50%, rgba(6,182,212,0.1) 0%, transparent 70%),
    radial-gradient(ellipse 40% 60% at 50% 40%, rgba(168,85,247,0.1) 0%, transparent 70%),
    radial-gradient(ellipse 40% 60% at 70% 50%, rgba(244,63,94,0.08) 0%, transparent 70%);
  pointer-events:none;
  animation:heroPulse 6s ease-in-out infinite alternate;
}
@keyframes heroPulse {
  from { opacity:0.6;transform:translateX(-50%) scale(1) }
  to { opacity:1;transform:translateX(-50%) scale(1.1) }
}

.hero-badge {
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 14px;
  border:1px solid rgba(168,85,247,0.25);
  border-radius:100px;
  background:rgba(168,85,247,0.06);
  font-size:11px;font-weight:600;letter-spacing:0.06em;
  color:var(--accent);text-transform:uppercase;
  margin-bottom:20px;
  animation:fadeDown 0.5s ease-out both;
}
.hero-badge .pulse-dot {
  width:6px;height:6px;border-radius:50%;
  background:var(--green);
  animation:pulseDot 2s ease-in-out infinite;
}
@keyframes pulseDot {
  0%,100% { opacity:1;transform:scale(1) }
  50% { opacity:0.5;transform:scale(0.7) }
}
@keyframes fadeDown {
  from { opacity:0;transform:translateY(-10px) }
  to { opacity:1;transform:translateY(0) }
}

.hero h1 {
  font-size:clamp(28px, 5vw, 44px);
  font-weight:800;letter-spacing:-0.04em;
  color:#fff;line-height:1.15;
  margin-bottom:12px;
  animation:fadeDown 0.6s 0.1s ease-out both;
}
.hero h1 .gradient-text {
  background:linear-gradient(135deg, #06b6d4 0%, #a855f7 40%, #f43f5e 80%, #06b6d4 100%);
  background-size:300% auto;
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
  animation:shimmer 5s linear infinite;
}
@keyframes shimmer {
  to { background-position:300% center }
}

.hero p {
  font-size:15px;color:var(--text2);
  max-width:480px;margin:0 auto;line-height:1.6;
  animation:fadeDown 0.6s 0.2s ease-out both;
}

.hero-stats {
  display:flex;align-items:center;justify-content:center;gap:32px;
  margin-top:28px;
  animation:fadeDown 0.6s 0.3s ease-out both;
}
.hero-stat {
  display:flex;flex-direction:column;align-items:center;gap:2px;
}
.hero-stat-value {
  font-size:22px;font-weight:800;
  font-family:var(--mono);
  background:linear-gradient(135deg, #06b6d4, #a855f7);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
  letter-spacing:-0.02em;
}
.hero-stat-label {
  font-size:11px;color:var(--text3);
  text-transform:uppercase;letter-spacing:0.08em;
}

/* ── MAIN ───────────────────────────────── */
.main{max-width:1280px;margin:0 auto;padding:0 24px 80px;position:relative;z-index:1}

/* ── TOOLBAR ────────────────────────────── */
.toolbar{
  background:rgba(12,16,24,0.6);
  backdrop-filter:blur(12px);
  border:1px solid var(--border);
  border-radius:var(--r);
  padding:14px 18px;
  display:flex;align-items:center;gap:16px;
  margin-bottom:20px;
  flex-wrap:wrap;
}
.search-wrap{
  flex:1;min-width:200px;
  display:flex;align-items:center;gap:10px;
  background:rgba(255,255,255,0.03);
  border:1px solid var(--border2);
  border-radius:var(--r-sm);
  padding:9px 14px;
  transition:border-color 0.2s, box-shadow 0.2s;
}
.search-wrap:focus-within {
  border-color:rgba(168,85,247,0.4);
  box-shadow:0 0 0 3px rgba(168,85,247,0.08);
}
.search-icon{color:var(--text3);flex-shrink:0}
.search-input{
  flex:1;background:none;border:none;outline:none;
  color:var(--text);font-family:var(--font);font-size:13px;
}
.search-input::placeholder{color:var(--text3)}

.sort-group{display:flex;align-items:center;gap:8px;flex-shrink:0}
.sort-label{font-size:12px;color:var(--text3);margin-right:2px}
.sort-btn{
  display:flex;align-items:center;gap:5px;
  padding:7px 14px;border-radius:var(--r-sm);
  border:1px solid var(--border2);
  background:transparent;color:var(--text2);
  font-family:var(--font);font-size:12px;font-weight:500;
  cursor:pointer;transition:all 0.2s ease;
}
.sort-btn:hover{border-color:rgba(168,85,247,0.3);color:var(--accent)}
.sort-btn.active{
  background:var(--accent);border-color:var(--accent);color:#fff;
  box-shadow:0 0 16px rgba(168,85,247,0.25);
}

/* ── CATEGORY FILTER ────────────────────── */
.filter-scroll{
  display:flex;flex-wrap:wrap;gap:8px;
  margin-bottom:28px;
}
.cat-btn{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 14px;
  border-radius:100px;
  border:1px solid var(--border2);
  background:rgba(255,255,255,0.02);
  color:var(--text2);
  font-family:var(--font);font-size:12px;font-weight:500;
  cursor:pointer;transition:all 0.2s ease;white-space:nowrap;
}
.cat-btn .cat-icon{font-size:13px;line-height:1}
.cat-btn .cat-count{
  font-family:var(--mono);font-size:10px;font-weight:600;
  background:rgba(255,255,255,0.06);
  padding:1px 6px;border-radius:100px;
  color:var(--text3);
  transition:all 0.2s;
}
.cat-btn.cat-all{font-weight:700;letter-spacing:0.02em}
.cat-btn:hover{border-color:rgba(168,85,247,0.3);color:var(--accent);background:rgba(168,85,247,0.04)}
.cat-btn:hover .cat-count{background:rgba(168,85,247,0.12);color:var(--accent)}
.cat-btn.active{
  background:var(--accent);border-color:var(--accent);color:#fff;
  box-shadow:0 0 16px rgba(168,85,247,0.2);
}
.cat-btn.active .cat-count{background:rgba(255,255,255,0.2);color:#fff}
/* Category-specific active colors */
.cat-btn[data-color="--rose"].active{background:var(--rose);border-color:var(--rose);box-shadow:0 0 16px rgba(244,63,94,0.2)}
.cat-btn[data-color="--cyan"].active{background:var(--cyan);border-color:var(--cyan);box-shadow:0 0 16px rgba(6,182,212,0.2)}
.cat-btn[data-color="--amber"].active{background:var(--amber);border-color:var(--amber);box-shadow:0 0 16px rgba(245,158,11,0.2);color:#000}
.cat-btn[data-color="--amber"].active .cat-count{color:#000;background:rgba(0,0,0,0.15)}
.cat-btn[data-color="--green"].active{background:var(--green);border-color:var(--green);box-shadow:0 0 16px rgba(16,185,129,0.2)}

/* ── GRID ───────────────────────────────── */
.projects-grid{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(320px,1fr));
  gap:20px;
}
.grid-loading{
  grid-column:1/-1;text-align:center;
  padding:80px;color:var(--text3);
  font-size:13px;
}

/* ── PROJECT CARD ────────────────────────── */
.pcard{
  display:flex;flex-direction:column;
  background:rgba(12,16,24,0.7);
  backdrop-filter:blur(8px);
  border:1px solid var(--border);
  border-radius:var(--r);
  overflow:hidden;
  cursor:pointer;
  transition:all 0.3s cubic-bezier(0.4,0,0.2,1);
  animation:fadeUp 0.4s both ease-out;
  position:relative;
}
.pcard::before {
  content:'';
  position:absolute;inset:-1px;
  border-radius:var(--r);
  padding:1px;
  background:linear-gradient(135deg, transparent 0%, transparent 100%);
  -webkit-mask:linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask:linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite:xor;
  mask-composite:exclude;
  transition:background 0.3s ease;
  pointer-events:none;
  z-index:1;
}

@keyframes fadeUp{
  from{opacity:0;transform:translateY(16px)}
  to{opacity:1;transform:translateY(0)}
}
.pcard:hover{
  border-color:rgba(168,85,247,0.15);
  box-shadow:
    0 8px 40px rgba(0,0,0,0.4),
    0 0 30px rgba(168,85,247,0.05),
    0 0 60px rgba(6,182,212,0.03);
  transform:translateY(-3px);
}
.pcard:hover::before {
  background:linear-gradient(135deg, rgba(6,182,212,0.4) 0%, rgba(168,85,247,0.3) 40%, rgba(244,63,94,0.3) 100%);
}

/* Body */
.pcard-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:12px;flex:1}

/* Header: avatar + repo name + category */
.pcard-header{
  display:flex;align-items:center;gap:10px;
}
.pcard-avatar{
  width:36px;height:36px;border-radius:10px;
  border:1.5px solid var(--border2);
  flex-shrink:0;
}
.pcard-header-info{
  display:flex;flex-direction:column;gap:1px;flex:1;min-width:0;
}
.pcard-repo{
  font-family:var(--mono);font-size:13px;font-weight:600;
  color:#fff;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.pcard-date{font-size:11px;color:var(--text3)}
.pcard-bookmark{
  background:none;border:none;cursor:pointer;
  color:var(--text3);padding:4px;border-radius:4px;
  transition:all 0.2s;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
}
.pcard-bookmark:hover{color:var(--accent)}
.pcard-bookmark.saved{color:var(--amber)}
.pcard-cat-badge{
  font-size:10px;font-weight:600;letter-spacing:0.04em;
  padding:4px 10px;border-radius:100px;
  background:rgba(168,85,247,0.1);
  border:1px solid rgba(168,85,247,0.2);
  color:rgba(196,167,255,0.9);
  white-space:nowrap;flex-shrink:0;
}

.pcard-title{
  font-size:14px;font-weight:500;
  color:var(--text2);line-height:1.5;
  letter-spacing:-0.01em;
}

/* Tags */
.pcard-tags{display:flex;flex-wrap:wrap;gap:6px}
.pcard-tag{
  font-family:var(--mono);font-size:10px;
  color:var(--text3);
  background:rgba(255,255,255,0.03);
  border:1px solid var(--border);
  border-radius:4px;padding:2px 8px;
}

.pcard-divider{
  height:1px;
  background:linear-gradient(90deg, transparent, var(--border2), transparent);
}

/* Footer: stats + view */
.pcard-footer{
  display:flex;align-items:center;justify-content:space-between;
}
.pcard-stats{
  display:flex;align-items:center;gap:14px;
}
.pstat{
  display:flex;align-items:center;gap:5px;
  font-family:var(--mono);font-size:11px;color:var(--text2);
}
.pstat svg{color:var(--amber)}
.pstat-lang{
  background:linear-gradient(135deg, rgba(6,182,212,0.08), rgba(168,85,247,0.08));
  border:1px solid rgba(168,85,247,0.12);
  border-radius:6px;padding:3px 10px;
  font-size:10px;color:rgba(196,167,255,0.8);
  font-weight:500;
}
.pcard-learn{
  font-size:12px;font-weight:600;
  background:linear-gradient(135deg, var(--cyan), var(--accent));
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
  white-space:nowrap;flex-shrink:0;
  transition:all 0.2s ease;
}
.pcard:hover .pcard-learn {
  letter-spacing:0.02em;
}

/* ── EMPTY STATE ─────────────────────────── */
.empty-state{
  text-align:center;padding:80px 0;
  color:var(--text3);font-size:14px;
}
.hidden{display:none!important}

/* ── FOOTER ─────────────────────────────── */
.site-footer{
  border-top:1px solid var(--border);
  padding:24px;
  position:relative;z-index:1;
}
.footer-inner{
  max-width:1280px;margin:0 auto;
  display:flex;justify-content:space-between;align-items:center;
  font-size:12px;color:var(--text3);
}
.footer-link{
  color:var(--accent);transition:all 0.2s;
  padding:4px 12px;border-radius:var(--r-sm);
  border:1px solid transparent;
}
.footer-link:hover{border-color:rgba(168,85,247,0.2);background:rgba(168,85,247,0.04)}

/* ── DETAIL PAGE ─────────────────────────── */
.detail-wrap{max-width:860px;margin:0 auto;padding:32px 20px 80px}

.detail-back{
  display:inline-flex;align-items:center;gap:7px;
  font-size:13px;color:var(--text2);margin-bottom:28px;
  transition:color 0.15s;
}
.detail-back:hover{color:var(--accent)}

.detail-og{
  width:100%;aspect-ratio:2/1;
  object-fit:cover;border-radius:var(--r);
  border:1px solid var(--border);
  margin-bottom:28px;
}

.detail-badges{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.dbadge{
  font-size:11px;font-weight:600;letter-spacing:0.06em;
  padding:4px 12px;border-radius:100px;
  border:1px solid var(--border2);color:var(--text2);
}
.dbadge-cat{background:rgba(168,85,247,0.12);border-color:rgba(168,85,247,0.3);color:#c4a7ff}
.dbadge-stars{background:rgba(245,158,11,0.08);border-color:rgba(245,158,11,0.2);color:var(--amber)}
.dbadge-lang{background:var(--surface);color:var(--text3)}

.detail-title{
  font-size:clamp(24px,4vw,36px);font-weight:800;
  letter-spacing:-0.03em;color:#fff;margin-bottom:8px;line-height:1.2;
}
.detail-byline{font-size:13px;color:var(--text3);margin-bottom:20px;font-family:var(--mono)}

.detail-desc{font-size:15px;line-height:1.75;color:var(--text2);margin-bottom:32px}

.detail-github-btn{
  display:inline-flex;align-items:center;gap:10px;
  background:var(--accent);color:#fff;
  font-size:13px;font-weight:600;
  padding:10px 22px;border-radius:var(--r-sm);
  transition:all 0.2s ease;
  margin-bottom:40px;
  box-shadow:0 0 20px rgba(168,85,247,0.2);
}
.detail-github-btn:hover{background:var(--accent-h);transform:translateY(-1px);box-shadow:0 0 30px rgba(168,85,247,0.3)}

.section-title{
  font-size:16px;font-weight:700;letter-spacing:-0.01em;
  color:#fff;margin-bottom:14px;
}

.code-block{
  background:var(--bg2);border:1px solid var(--border2);
  border-radius:var(--r);overflow:hidden;margin-bottom:32px;
}
.code-top{
  display:flex;justify-content:space-between;align-items:center;
  padding:10px 16px;background:var(--surface);border-bottom:1px solid var(--border);
}
.code-lang-label{font-family:var(--mono);font-size:11px;color:var(--cyan);text-transform:uppercase;letter-spacing:0.08em}
.code-copy-btn{
  font-family:var(--mono);font-size:11px;color:var(--text3);
  background:none;border:1px solid var(--border2);border-radius:4px;
  padding:3px 10px;cursor:pointer;transition:all 0.15s;
}
.code-copy-btn:hover{color:var(--accent);border-color:var(--accent)}
.code-block pre{
  padding:20px;overflow-x:auto;
  font-family:var(--mono);font-size:12.5px;line-height:1.7;
  color:#c9d1d9;tab-size:2;
}

.tags-wrap{display:flex;flex-wrap:wrap;gap:8px}
.tag-item{
  font-family:var(--mono);font-size:12px;
  color:var(--text2);background:var(--surface);
  border:1px solid var(--border2);border-radius:var(--r-sm);
  padding:5px 14px;
  transition:all 0.2s;
}
.tag-item:hover{border-color:rgba(168,85,247,0.3);color:var(--accent)}

/* ── RESPONSIVE ─────────────────────────── */
@media(max-width:640px){
  .sort-group{display:none}
  .projects-grid{grid-template-columns:1fr}
  .header-nav .nav-item span{display:none}
  .footer-inner{flex-direction:column;gap:8px;text-align:center}
  .hero{padding:40px 20px 32px}
  .hero h1{font-size:24px}
  .hero-stats{gap:20px}
  .hero-stat-value{font-size:18px}
}

/* ── BREADCRUMB ─────────────────────────────── */
.breadcrumb-nav{
  background:var(--bg2);
  border-bottom:1px solid var(--border);
}
.breadcrumb-inner{
  max-width:860px;margin:0 auto;padding:10px 20px;
}
.breadcrumb{
  display:flex;align-items:center;gap:8px;
  list-style:none;
  font-size:12px;color:var(--text3);
}
.breadcrumb a{color:var(--text3);transition:color 0.15s}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb li[aria-current="page"]{color:var(--text2)}

/* ── SCROLLBAR ──────────────────────────── */
::-webkit-scrollbar{width:6px;height:6px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:rgba(255,255,255,0.08);border-radius:3px}
::-webkit-scrollbar-thumb:hover{background:rgba(255,255,255,0.14)}

/* ── SELECTION ──────────────────────────── */
::selection{background:rgba(168,85,247,0.3);color:#fff}