/* ================================================================
   Netrolix Academy - DESIGN SYSTEM v1.0
   ================================================================ */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800;900&family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* -- TOKENS -- */
:root {
  --primary:        #0066cc;
  --primary-bright: #00aaff;
  --primary-glow:   rgba(0,170,255,0.15);
  --accent:         #00e5ff;
  --success:        #4cae4f;
  --success-bright: #00ff88;
  --warning:        #ff8c00;
  --danger:         #ef4444;
  --purple:         #a855f7;
  --gold:           #f0c040;

  --bg-root:    #050b14;
  --bg-dark:    #080d18;
  --bg-surface: #0d1525;
  --bg-card:    #111827;
  --bg-hover:   #151f30;
  --bg-border:  rgba(255,255,255,0.07);
  --bg-input:   rgba(255,255,255,0.05);

  --text-main:  #e2e8f0;
  --text-dim:   #64748b;
  --text-muted: rgba(255,255,255,0.3);

  --shadow-sm:   0 4px 12px rgba(0,0,0,0.3);
  --shadow-md:   0 8px 24px rgba(0,0,0,0.4);
  --shadow-lg:   0 20px 48px rgba(0,0,0,0.5);
  --shadow-glow: 0 0 30px rgba(0,170,255,0.15);
  --shadow-card: 0 2px 12px rgba(0,0,0,0.4), 0 0 1px rgba(255,255,255,0.05);

  --r-xs: 6px; --r-sm: 10px; --r-md: 14px;
  --r-lg: 20px; --r-xl: 28px; --r-full: 9999px;

  --ease: all 0.22s ease;
  --ease-md: all 0.35s ease;

  --nav-h: 68px;
  --sidebar-w: 260px;
}

/* -- RESET -- */
*,*::before,*::after { box-sizing:border-box; margin:0; padding:0; }
html { scroll-behavior:smooth; font-size:16px; }
body { font-family:'Inter',sans-serif; background:var(--bg-dark) !important; color:var(--text-main) !important; line-height:1.65; min-height:100vh; -webkit-font-smoothing:antialiased; }
a { color:inherit; text-decoration:none; }
img { max-width:100%; display:block; }
button { cursor:pointer; font-family:'Inter',sans-serif; }
input,select,textarea { font-family:'Inter',sans-serif; }
h1,h2,h3,h4,h5,h6 { font-family:'Outfit',sans-serif; line-height:1.2; color:#fff; }
code,pre,kbd { font-family:'JetBrains Mono',monospace; }
ul { list-style:none; }

/* -- LAYOUT -- */
.container { max-width:1180px; margin:0 auto; padding:0 24px; }
.container-lg { max-width:1400px; margin:0 auto; padding:0 28px; }
.container-sm { max-width:760px; margin:0 auto; padding:0 24px; }

.grid-2 { display:grid; grid-template-columns:1fr 1fr; gap:24px; }
.grid-3 { display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
.grid-4 { display:grid; grid-template-columns:repeat(4,1fr); gap:20px; }
.flex { display:flex; }
.flex-center { display:flex; align-items:center; justify-content:center; }
.flex-between { display:flex; align-items:center; justify-content:space-between; }
.gap-8 { gap:8px; } .gap-12 { gap:12px; } .gap-16 { gap:16px; } .gap-24 { gap:24px; }

/* -- TYPOGRAPHY -- */
.text-xs   { font-size:11px; } .text-sm  { font-size:13px; } .text-base { font-size:15px; }
.text-lg   { font-size:18px; } .text-xl  { font-size:22px; } .text-2xl  { font-size:28px; }
.text-3xl  { font-size:36px; } .text-4xl { font-size:48px; } .text-5xl  { font-size:60px; }
.fw-400 { font-weight:400; } .fw-500 { font-weight:500; } .fw-600 { font-weight:600; }
.fw-700 { font-weight:700; } .fw-800 { font-weight:800; } .fw-900 { font-weight:900; }
.text-center { text-align:center; } .text-muted { color:var(--text-dim); }
.text-primary { color:var(--primary-bright); } .text-success { color:var(--success); }
.text-warning { color:var(--warning); } .text-danger { color:var(--danger); }
.font-mono { font-family:'JetBrains Mono',monospace; }
.gradient-text {
  background:linear-gradient(90deg,#00aaff,#00e5ff,#4cae4f);
  -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text;
}
.gradient-text-blue {
  background:linear-gradient(90deg,#0066cc,#00aaff,#00e5ff);
  -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text;
}

/* -- SECTION -- */
.section { padding:80px 0; }
.section-sm { padding:48px 0; }
.section-lg { padding:100px 0; }
.section-header { text-align:center; margin-bottom:56px; }
.section-header h2 { font-size:2.4rem; margin-bottom:14px; }
.section-header p { font-size:1.05rem; color:var(--text-dim); max-width:580px; margin:0 auto; }

/* -- BADGE -- */
.badge {
  display:inline-flex; align-items:center; gap:6px;
  font-size:11px; font-weight:700; letter-spacing:1.5px; text-transform:uppercase;
  padding:5px 14px; border-radius:var(--r-full); border:1px solid;
}
.badge-blue   { background:rgba(0,170,255,0.1); border-color:rgba(0,170,255,0.3); color:#00aaff; }
.badge-green  { background:rgba(76,174,79,0.1);  border-color:rgba(76,174,79,0.3);  color:#4cae4f; }
.badge-orange { background:rgba(255,140,0,0.1);  border-color:rgba(255,140,0,0.3);  color:#ff8c00; }
.badge-red    { background:rgba(239,68,68,0.1);  border-color:rgba(239,68,68,0.3);  color:#ef4444; }
.badge-purple { background:rgba(168,85,247,0.1); border-color:rgba(168,85,247,0.3); color:#a855f7; }
.badge-gold   { background:rgba(240,192,64,0.1); border-color:rgba(240,192,64,0.3); color:#f0c040; }
.badge-gray   { background:rgba(255,255,255,0.06); border-color:rgba(255,255,255,0.12); color:var(--text-dim); }
.badge-dot::before { content:''; display:inline-block; width:7px; height:7px; border-radius:50%; background:currentColor; animation:pulseDot 1.5s ease infinite; }
@keyframes pulseDot { 0%,100%{opacity:1} 50%{opacity:0.4} }
.badge-live { background:rgba(0,255,136,0.1); border-color:rgba(0,255,136,0.3); color:#00ff88; }
.badge-live::before { content:''; display:inline-block; width:7px; height:7px; border-radius:50%; background:#00ff88; animation:pulseDot 1.5s ease infinite; }

/* -- BUTTONS -- */
.btn {
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  font-family:'Outfit',sans-serif; font-weight:700; font-size:14px; letter-spacing:0.3px;
  padding:12px 26px; border-radius:var(--r-sm); border:none;
  transition:var(--ease); white-space:nowrap; cursor:pointer; position:relative; overflow:hidden;
}
.btn::after { content:''; position:absolute; inset:0; background:rgba(255,255,255,0); transition:var(--ease); }
.btn:hover::after { background:rgba(255,255,255,0.06); }
.btn:active { transform:scale(0.97); }

.btn-primary { background:linear-gradient(135deg,var(--primary),var(--primary-bright)); color:#fff; box-shadow:0 4px 20px rgba(0,102,204,0.4); }
.btn-primary:hover { box-shadow:0 8px 28px rgba(0,102,204,0.55); transform:translateY(-2px); }
.btn-accent { background:linear-gradient(135deg,#00aaff,#00e5ff); color:#05080f; box-shadow:0 4px 20px rgba(0,229,255,0.3); }
.btn-accent:hover { box-shadow:0 8px 28px rgba(0,229,255,0.45); transform:translateY(-2px); }
.btn-success { background:linear-gradient(135deg,#3a9e40,#4cae4f); color:#fff; box-shadow:0 4px 16px rgba(76,174,79,0.3); }
.btn-success:hover { box-shadow:0 8px 24px rgba(76,174,79,0.45); transform:translateY(-2px); }
.btn-outline { background:transparent; border:1px solid rgba(255,255,255,0.15); color:var(--text-main); }
.btn-outline:hover { border-color:var(--primary-bright); color:var(--primary-bright); }
.btn-outline-blue { background:transparent; border:1px solid rgba(0,170,255,0.4); color:#00aaff; }
.btn-outline-blue:hover { background:rgba(0,170,255,0.1); }
.btn-ghost { background:rgba(255,255,255,0.05); border:1px solid var(--bg-border); color:var(--text-dim); }
.btn-ghost:hover { background:rgba(255,255,255,0.09); color:var(--text-main); }
.btn-danger { background:linear-gradient(135deg,#c0392b,#ef4444); color:#fff; }
.btn-sm { font-size:12px; padding:8px 18px; border-radius:var(--r-xs); }
.btn-lg { font-size:16px; padding:15px 36px; border-radius:var(--r-md); }
.btn-icon { padding:10px; border-radius:var(--r-sm); }
.btn-block { width:100%; }

/* -- CARDS -- */
.card {
  background:var(--bg-card); border:1px solid var(--bg-border);
  border-radius:var(--r-lg); overflow:hidden;
  box-shadow:var(--shadow-card); transition:var(--ease-md);
}
.card:hover { border-color:rgba(0,170,255,0.2); box-shadow:var(--shadow-md), 0 0 20px rgba(0,170,255,0.06); }
.card-body { padding:28px; }
.card-elevate:hover { transform:translateY(-5px); box-shadow:var(--shadow-lg), 0 0 25px rgba(0,170,255,0.1); }

/* -- FORM ELEMENTS -- */
.form-group { display:flex; flex-direction:column; gap:6px; }
.form-label { font-size:12px; font-weight:700; letter-spacing:1px; text-transform:uppercase; color:var(--text-dim); }
.form-control {
  background:var(--bg-input); border:1px solid rgba(255,255,255,0.1);
  border-radius:var(--r-sm); padding:12px 16px;
  color:var(--text-main); font-size:14px; font-family:'Inter',sans-serif;
  transition:var(--ease); outline:none; width:100%;
}
.form-control::placeholder { color:rgba(255,255,255,0.2); }
.form-control:focus { border-color:var(--primary-bright); box-shadow:0 0 0 3px rgba(0,170,255,0.12); }
.form-control.error { border-color:var(--danger); box-shadow:0 0 0 3px rgba(239,68,68,0.12); }
.form-control.success { border-color:var(--success); box-shadow:0 0 0 3px rgba(76,174,79,0.12); }
.form-error { font-size:12px; color:var(--danger); margin-top:2px; }
.form-select { appearance:none; cursor:pointer; }

/* -- NAV -- */
.navbar {
  position:fixed; top:0; left:0; right:0; z-index:1000;
  height:var(--nav-h); background:rgba(8,13,24,0.92);
  backdrop-filter:blur(20px); -webkit-backdrop-filter:blur(20px);
  border-bottom:1px solid var(--bg-border);
  transition:var(--ease);
}
.navbar.scrolled { background:rgba(8,13,24,0.98); border-bottom-color:rgba(0,170,255,0.12); }
.navbar.app-nav { position:sticky; background:var(--bg-surface); backdrop-filter:none; }
.nav-inner { height:100%; display:flex; align-items:center; justify-content:space-between; }
.nav-logo { display:flex; align-items:baseline; gap:2px; text-decoration:none; }
.nav-logo .logo-n { font-family:'Outfit',sans-serif; font-weight:900; font-size:1.5rem; color:#00aaff; }
.nav-logo .logo-t { font-family:'Outfit',sans-serif; font-weight:900; font-size:1.5rem; color:#4cae4f; }
.nav-logo .logo-sub { font-size:9px; font-weight:700; letter-spacing:2.5px; color:rgba(255,255,255,0.35); margin-left:6px; text-transform:uppercase; align-self:center; }
.nav-links { display:flex; align-items:center; gap:4px; }
.nav-links a { font-size:14px; font-weight:500; color:var(--text-dim); padding:7px 14px; border-radius:var(--r-sm); transition:var(--ease); }
.nav-links a:hover, .nav-links a.active { color:#fff; background:rgba(255,255,255,0.06); }
.nav-links a.nav-active { color:var(--primary-bright); }
.nav-actions { display:flex; align-items:center; gap:10px; }
.nav-avatar { width:36px; height:36px; border-radius:50%; background:linear-gradient(135deg,var(--primary),var(--primary-bright)); display:flex; align-items:center; justify-content:center; font-weight:700; font-size:14px; color:#fff; cursor:pointer; border:2px solid rgba(0,170,255,0.3); }

/* -- SIDEBAR LAYOUT -- */
.app-layout { display:flex; min-height:calc(100vh - var(--nav-h)); padding-top:var(--nav-h); }
.sidebar {
  width:var(--sidebar-w); flex-shrink:0;
  background:var(--bg-surface); border-right:1px solid var(--bg-border);
  position:sticky; top:var(--nav-h); height:calc(100vh - var(--nav-h));
  overflow-y:auto; padding:24px 16px;
  display:flex; flex-direction:column; gap:4px;
}
.sidebar-section-label { font-size:10px; font-weight:700; letter-spacing:2px; text-transform:uppercase; color:rgba(255,255,255,0.28); padding:14px 12px 6px; }
.sidebar-link {
  display:flex; align-items:center; gap:10px; padding:10px 12px; border-radius:var(--r-sm);
  color:var(--text-dim); font-size:14px; font-weight:500; transition:var(--ease);
  text-decoration:none;
}
.sidebar-link:hover { background:rgba(255,255,255,0.05); color:var(--text-main); }
.sidebar-link.active { background:rgba(0,170,255,0.1); color:#00aaff; border:1px solid rgba(0,170,255,0.2); }
.sidebar-link .sl-icon { font-size:18px; min-width:22px; text-align:center; }
.sidebar-link .sl-badge { margin-left:auto; font-size:10px; font-weight:700; padding:2px 8px; border-radius:var(--r-full); background:rgba(0,255,136,0.12); color:#00ff88; border:1px solid rgba(0,255,136,0.2); }
.app-main { flex:1; padding:32px; min-width:0; }

/* -- PROGRESS -- */
.progress-wrap { display:flex; flex-direction:column; gap:6px; }
.progress-bar-bg { height:6px; background:rgba(255,255,255,0.06); border-radius:var(--r-full); overflow:hidden; }
.progress-bar-fill { height:100%; border-radius:var(--r-full); background:linear-gradient(90deg,#0066cc,#00e5ff); transition:width 0.6s ease; }
.progress-bar-fill.green  { background:linear-gradient(90deg,#3a9e40,#4cae4f); }
.progress-bar-fill.purple { background:linear-gradient(90deg,#7c3aed,#a855f7); }
.progress-bar-fill.gold   { background:linear-gradient(90deg,#b8860b,#f0c040); }
.progress-bar-lg { height:10px; }
.progress-bar-sm { height:4px; }

/* -- STAT CARDS -- */
.stat-card { background:var(--bg-card); border:1px solid var(--bg-border); border-radius:var(--r-md); padding:22px 24px; }
.stat-card .stat-label { font-size:12px; font-weight:700; letter-spacing:1px; text-transform:uppercase; color:var(--text-dim); margin-bottom:8px; }
.stat-card .stat-val { font-family:'Outfit',sans-serif; font-size:2.2rem; font-weight:800; color:#fff; line-height:1; }
.stat-card .stat-sub { font-size:12px; color:var(--text-dim); margin-top:6px; }
.stat-card .stat-icon { font-size:28px; opacity:0.8; }

/* -- TABS -- */
.tabs { display:flex; gap:4px; background:rgba(255,255,255,0.04); border-radius:var(--r-md); padding:4px; border:1px solid var(--bg-border); width:fit-content; }
.tab-btn { font-size:13px; font-weight:600; padding:8px 20px; border-radius:var(--r-sm); border:none; background:transparent; color:var(--text-dim); transition:var(--ease); cursor:pointer; }
.tab-btn.active { background:linear-gradient(135deg,var(--primary),var(--primary-bright)); color:#fff; box-shadow:0 2px 12px rgba(0,102,204,0.3); }
.tab-btn:hover:not(.active) { color:var(--text-main); background:rgba(255,255,255,0.05); }

/* -- MODALS -- */
.modal-overlay { display:none; position:fixed; inset:0; background:rgba(0,0,0,0.8); z-index:9000; align-items:center; justify-content:center; padding:24px; }
.modal-overlay.show { display:flex; animation:fadeIn 0.2s ease; }
.modal { background:var(--bg-surface); border:1px solid rgba(0,170,255,0.15); border-radius:var(--r-xl); padding:36px; max-width:520px; width:100%; box-shadow:var(--shadow-lg), 0 0 40px rgba(0,0,0,0.5); animation:slideUp 0.3s ease; }
.modal-header { display:flex; justify-content:space-between; align-items:center; margin-bottom:24px; }
.modal-title { font-size:1.4rem; font-weight:800; color:#fff; }
.modal-close { background:none; border:none; color:var(--text-dim); font-size:20px; cursor:pointer; transition:var(--ease); padding:4px; border-radius:var(--r-sm); }
.modal-close:hover { color:var(--danger); background:rgba(239,68,68,0.08); }

/* -- TABLES -- */
.table-wrap { overflow-x:auto; border-radius:var(--r-md); border:1px solid var(--bg-border); }
table { width:100%; border-collapse:collapse; }
thead th { background:rgba(255,255,255,0.04); padding:12px 16px; font-size:11px; font-weight:700; letter-spacing:1.5px; text-transform:uppercase; color:var(--text-dim); text-align:left; border-bottom:1px solid var(--bg-border); white-space:nowrap; }
tbody td { padding:14px 16px; font-size:14px; color:var(--text-main); border-bottom:1px solid rgba(255,255,255,0.04); vertical-align:middle; }
tbody tr:last-child td { border-bottom:none; }
tbody tr:hover td { background:rgba(255,255,255,0.02); }

/* -- ALERTS -- */
.alert { display:flex; align-items:flex-start; gap:12px; padding:14px 18px; border-radius:var(--r-md); border:1px solid; font-size:14px; }
.alert-info    { background:rgba(0,170,255,0.07);  border-color:rgba(0,170,255,0.25);  color:#93c5fd; }
.alert-success { background:rgba(76,174,79,0.07);  border-color:rgba(76,174,79,0.25);  color:#86efac; }
.alert-warning { background:rgba(255,140,0,0.07);  border-color:rgba(255,140,0,0.25);  color:#fdba74; }
.alert-danger  { background:rgba(239,68,68,0.07);  border-color:rgba(239,68,68,0.25);  color:#fca5a5; }

/* -- CHIP/TAGS -- */
.chip { display:inline-flex; align-items:center; gap:5px; font-size:11px; font-weight:600; padding:3px 10px; border-radius:var(--r-full); background:rgba(255,255,255,0.06); border:1px solid rgba(255,255,255,0.1); color:var(--text-dim); font-family:'JetBrains Mono',monospace; }

/* -- TOOLTIP -- */
[data-tip] { position:relative; cursor:help; }
[data-tip]::after { content:attr(data-tip); position:absolute; bottom:calc(100%+8px); left:50%; transform:translateX(-50%); background:#1e293b; color:#e2e8f0; font-size:12px; padding:6px 10px; border-radius:var(--r-sm); white-space:nowrap; pointer-events:none; opacity:0; transition:var(--ease); z-index:100; border:1px solid rgba(255,255,255,0.1); }
[data-tip]:hover::after { opacity:1; }

/* -- DIVIDER -- */
.divider { height:1px; background:var(--bg-border); margin:24px 0; }
.divider-text { display:flex; align-items:center; gap:16px; color:var(--text-dim); font-size:13px; margin:20px 0; }
.divider-text::before,.divider-text::after { content:''; flex:1; height:1px; background:var(--bg-border); }

/* -- AVATAR -- */
.avatar { border-radius:50%; object-fit:cover; }
.avatar-sm { width:32px; height:32px; }
.avatar-md { width:44px; height:44px; }
.avatar-lg { width:64px; height:64px; }
.avatar-xl { width:96px; height:96px; }
.avatar-placeholder { display:flex; align-items:center; justify-content:center; font-weight:700; color:#fff; background:linear-gradient(135deg,var(--primary),var(--primary-bright)); }

/* -- SKELETON LOADER -- */
.skeleton { background:linear-gradient(90deg,rgba(255,255,255,0.04) 25%,rgba(255,255,255,0.08) 50%,rgba(255,255,255,0.04) 75%); background-size:200%; animation:shimmer 1.5s infinite; border-radius:var(--r-sm); }
@keyframes shimmer { from{background-position:200% 0} to{background-position:-200% 0} }

/* -- ANIMATIONS -- */
@keyframes fadeIn    { from{opacity:0} to{opacity:1} }
@keyframes fadeSlideUp { from{opacity:0;transform:translateY(20px)} to{opacity:1;transform:translateY(0)} }
@keyframes slideUp   { from{opacity:0;transform:translateY(30px)} to{opacity:1;transform:translateY(0)} }
@keyframes scaleIn   { from{opacity:0;transform:scale(0.9)} to{opacity:1;transform:scale(1)} }
@keyframes float     { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-10px)} }
@keyframes glowPulse { 0%,100%{box-shadow:0 0 20px rgba(0,170,255,0.2)} 50%{box-shadow:0 0 40px rgba(0,170,255,0.4)} }
.anim-fade    { animation:fadeIn 0.4s ease; }
.anim-slideup { animation:fadeSlideUp 0.5s ease; }
.anim-scale   { animation:scaleIn 0.3s ease; }
.anim-float   { animation:float 4s ease-in-out infinite; }

/* -- SCROLLBAR -- */
::-webkit-scrollbar { width:6px; height:6px; }
::-webkit-scrollbar-track { background:transparent; }
::-webkit-scrollbar-thumb { background:rgba(255,255,255,0.12); border-radius:10px; }
::-webkit-scrollbar-thumb:hover { background:rgba(255,255,255,0.2); }

/* -- UTILITY -- */
.mt-4 { margin-top:4px; } .mt-8 { margin-top:8px; } .mt-12 { margin-top:12px; }
.mt-16 { margin-top:16px; } .mt-24 { margin-top:24px; } .mt-32 { margin-top:32px; }
.mt-40 { margin-top:40px; } .mt-48 { margin-top:48px; }
.mb-8 { margin-bottom:8px; } .mb-16 { margin-bottom:16px; } .mb-24 { margin-bottom:24px; }
.mb-32 { margin-bottom:32px; } .mb-48 { margin-bottom:48px; }
.p-16 { padding:16px; } .p-24 { padding:24px; } .p-32 { padding:32px; }
.rounded { border-radius:var(--r-md); } .rounded-full { border-radius:var(--r-full); }
.hidden { display:none !important; }
.visible { display:block !important; }
.flex-1 { flex:1; } .min-w-0 { min-width:0; }
.opacity-50 { opacity:0.5; } .opacity-30 { opacity:0.3; }
.cursor-pointer { cursor:pointer; } .select-none { user-select:none; }
.overflow-hidden { overflow:hidden; } .overflow-auto { overflow:auto; }
.truncate { overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.relative { position:relative; } .absolute { position:absolute; }
.w-full { width:100%; } .h-full { height:100%; }

/* -- HERO GRADIENT BG -- */
.hero-bg {
  background: var(--bg-dark);
  position:relative; overflow:hidden;
}
.hero-bg::before {
  content:''; position:absolute; inset:0; pointer-events:none;
  background:
    radial-gradient(ellipse at 15% 40%, rgba(0,102,204,0.14) 0%, transparent 55%),
    radial-gradient(ellipse at 85% 20%, rgba(0,229,255,0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 80%, rgba(76,174,79,0.07) 0%, transparent 50%);
}

/* -- LAB CARD -- */
.lab-card { background:var(--bg-card); border:1px solid var(--bg-border); border-radius:var(--r-lg); overflow:hidden; transition:var(--ease-md); display:flex; flex-direction:column; }
.lab-card:hover { transform:translateY(-6px); border-color:rgba(0,170,255,0.3); box-shadow:var(--shadow-lg), 0 0 25px rgba(0,170,255,0.1); }
.lab-card-banner { height:6px; background:linear-gradient(90deg,var(--primary),var(--primary-bright)); }
.lab-card-banner.green  { background:linear-gradient(90deg,#3a9e40,#4cae4f); }
.lab-card-banner.purple { background:linear-gradient(90deg,#7c3aed,#a855f7); }
.lab-card-banner.orange { background:linear-gradient(90deg,#d97706,#fb923c); }
.lab-card-banner.gold   { background:linear-gradient(90deg,#b45309,#f59e0b); }
.lab-card-body { padding:24px; flex:1; display:flex; flex-direction:column; }
.lab-card-icon { font-size:36px; line-height:1; margin-bottom:14px; }
.lab-card h3 { font-size:1.1rem; margin-bottom:8px; }
.lab-card p { font-size:13.5px; color:var(--text-dim); flex:1; line-height:1.65; }
.lab-card-footer { padding:16px 24px; border-top:1px solid var(--bg-border); display:flex; align-items:center; justify-content:space-between; }
.lab-card-locked { opacity:0.55; pointer-events:none; }
.lab-card-locked .lab-card-banner { background:linear-gradient(90deg,#374151,#4b5563); }

/* -- PATH CARD -- */
.path-card { background:var(--bg-card); border:1px solid var(--bg-border); border-radius:var(--r-lg); padding:28px; transition:var(--ease-md); }
.path-card:hover { border-color:rgba(0,170,255,0.25); transform:translateY(-4px); box-shadow:var(--shadow-md); }
.path-card-header { display:flex; align-items:flex-start; justify-content:space-between; margin-bottom:16px; }
.path-icon { font-size:40px; }

/* -- PRICING CARD -- */
.pricing-card { background:var(--bg-card); border:1px solid var(--bg-border); border-radius:var(--r-xl); padding:36px 30px; transition:var(--ease-md); position:relative; overflow:hidden; }
.pricing-card.featured { border-color:rgba(0,170,255,0.4); background:linear-gradient(145deg,rgba(0,102,204,0.08),rgba(0,229,255,0.04)); box-shadow:var(--shadow-glow); }
.pricing-card.featured::before { content:'MOST POPULAR'; position:absolute; top:18px; right:-28px; background:linear-gradient(135deg,var(--primary),var(--primary-bright)); font-size:10px; font-weight:800; letter-spacing:1.5px; color:#fff; padding:4px 40px; transform:rotate(45deg); }
.pricing-price { font-family:'Outfit',sans-serif; font-size:3rem; font-weight:900; color:#fff; line-height:1; }
.pricing-price sup { font-size:1.3rem; font-weight:700; vertical-align:top; margin-top:8px; display:inline-block; }
.pricing-price .per { font-size:1rem; font-weight:400; color:var(--text-dim); }
.pricing-feature { display:flex; align-items:center; gap:10px; font-size:14px; color:var(--text-dim); padding:8px 0; border-bottom:1px solid rgba(255,255,255,0.04); }
.pricing-feature:last-child { border-bottom:none; }
.pricing-feature .icon { color:var(--success); font-size:14px; flex-shrink:0; }
.pricing-feature .icon.no { color:var(--text-muted); }

/* -- ACHIEVEMENT BADGE -- */
.achievement { display:flex; flex-direction:column; align-items:center; gap:6px; text-align:center; padding:16px; border-radius:var(--r-md); border:1px solid var(--bg-border); background:var(--bg-card); transition:var(--ease); }
.achievement.earned { border-color:rgba(240,192,64,0.35); background:rgba(240,192,64,0.06); box-shadow:0 0 20px rgba(240,192,64,0.1); }
.achievement.locked { filter:grayscale(1); opacity:0.4; }
.achievement-icon { font-size:36px; }
.achievement-name { font-size:12px; font-weight:700; color:#fff; }
.achievement-desc { font-size:11px; color:var(--text-dim); }

/* -- LEADERBOARD -- */
.lb-row { display:flex; align-items:center; gap:14px; padding:12px 16px; border-radius:var(--r-md); transition:var(--ease); }
.lb-row:hover { background:rgba(255,255,255,0.03); }
.lb-row.top { background:rgba(240,192,64,0.05); border:1px solid rgba(240,192,64,0.15); }
.lb-rank { font-family:'JetBrains Mono',monospace; font-size:16px; font-weight:700; color:var(--text-dim); min-width:30px; }
.lb-rank.gold   { color:#f0c040; } .lb-rank.silver { color:#94a3b8; } .lb-rank.bronze { color:#b87333; }
.lb-score { font-family:'Outfit',sans-serif; font-weight:800; color:var(--primary-bright); margin-left:auto; }

/* -- NOTIFICATION -- */
.toast-container { position:fixed; bottom:24px; right:24px; z-index:9999; display:flex; flex-direction:column; gap:10px; pointer-events:none; }
.toast { background:var(--bg-surface); border:1px solid; border-radius:var(--r-md); padding:14px 18px; font-size:14px; display:flex; align-items:center; gap:10px; box-shadow:var(--shadow-lg); pointer-events:all; animation:slideInRight 0.3s ease; min-width:280px; max-width:380px; }
.toast.success { border-color:rgba(76,174,79,0.4);  background:rgba(76,174,79,0.08);  color:#86efac; }
.toast.info    { border-color:rgba(0,170,255,0.4);  background:rgba(0,170,255,0.08);  color:#93c5fd; }
.toast.warning { border-color:rgba(255,140,0,0.4);  background:rgba(255,140,0,0.08);  color:#fdba74; }
.toast.error   { border-color:rgba(239,68,68,0.4);  background:rgba(239,68,68,0.08);  color:#fca5a5; }
@keyframes slideInRight { from{opacity:0;transform:translateX(30px)} to{opacity:1;transform:translateX(0)} }

/* -- FOOTER -- */
.footer { background:var(--bg-surface); border-top:1px solid var(--bg-border); padding:64px 0 32px; }
.footer-grid { display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:48px; }
.footer-col h4 { font-size:13px; font-weight:700; letter-spacing:1.5px; text-transform:uppercase; color:var(--text-dim); margin-bottom:16px; }
.footer-col p { font-size:14px; color:var(--text-dim); line-height:1.7; }
.footer-col ul { display:flex; flex-direction:column; gap:8px; }
.footer-col ul a { font-size:14px; color:var(--text-dim); transition:var(--ease); }
.footer-col ul a:hover { color:#fff; padding-left:4px; }
.footer-bottom { margin-top:48px; padding-top:24px; border-top:1px solid var(--bg-border); display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:12px; }
.footer-bottom p { font-size:13px; color:var(--text-dim); }

/* -- RESPONSIVE -- */
@media (max-width:1024px) {
  .grid-4 { grid-template-columns:repeat(2,1fr); }
  .footer-grid { grid-template-columns:1fr 1fr; gap:32px; }
}
@media (max-width:768px) {
  .container { padding:0 16px; }
  .section { padding:60px 0; }
  .grid-2,.grid-3 { grid-template-columns:1fr; }
  .grid-4 { grid-template-columns:1fr; }
  .app-layout { flex-direction:column; }
  .sidebar { width:100%; height:auto; position:relative; flex-direction:row; flex-wrap:wrap; padding:12px; }
  .app-main { padding:20px 16px; }
  .section-header h2 { font-size:1.8rem; }
  .text-5xl { font-size:36px; } .text-4xl { font-size:30px; } .text-3xl { font-size:24px; }
  .footer-grid { grid-template-columns:1fr; gap:24px; }
  .footer-bottom { flex-direction:column; text-align:center; }
  .tabs { flex-wrap:wrap; }
}
@media (max-width:480px) {
  .btn { padding:10px 20px; font-size:13px; }
  .btn-lg { padding:12px 24px; font-size:14px; }
}