:root{--primary-color: #4990e2;--secondary-color: #5a8edb;--accent-color: #7cb5f9;--dark-bg: #0f172a;--medium-bg: #1e293b;--light-bg: #ffffff;--bg-color: #0f172a;--card-bg: rgba(30, 41, 59, .95);--text-primary: #ffffff;--text-secondary: #cbd5e1;--text-muted: #94a3b8;--border-color: rgba(73, 144, 226, .3);--success-color: #10b981;--error-color: #ef4444;--warning-color: #f59e0b;--gradient-primary: linear-gradient(135deg, #4990e2 0%, #5a8edb 100%);--gradient-secondary: linear-gradient(135deg, #4990e2 0%, #7cb5f9 100%);--gradient-accent: linear-gradient(135deg, #4990e2 0%, #a1c4fd 100%);--shadow-sm: 0 2px 8px rgba(0, 0, 0, .2);--shadow-md: 0 4px 16px rgba(0, 0, 0, .3);--shadow-lg: 0 8px 32px rgba(0, 0, 0, .4);--shadow-glow: 0 0 20px rgba(73, 144, 226, .3);--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-full: 50px;--transition-fast: .2s ease;--transition-normal: .3s ease;--transition-slow: .5s ease}body.light-mode{--bg-color: #ffffff;--dark-bg: #f8fafc;--medium-bg: #f1f5f9;--text-primary: #1e293b;--text-secondary: #475569;--text-muted: #64748b;--card-bg: rgba(255, 255, 255, .95);--border-color: rgba(73, 144, 226, .3);--shadow-sm: 0 2px 8px rgba(0, 0, 0, .1);--shadow-md: 0 4px 16px rgba(0, 0, 0, .15);--shadow-lg: 0 8px 32px rgba(0, 0, 0, .2)}*{margin:0;padding:0;box-sizing:border-box}input::placeholder,textarea::placeholder{color:var(--text-muted);opacity:1;transition:color var(--transition-normal)}body.light-mode input::placeholder,body.light-mode textarea::placeholder{color:var(--text-muted)}body input::placeholder,body textarea::placeholder{color:var(--text-muted)}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;color:var(--text-primary);background-color:var(--bg-color);line-height:1.6;overflow-x:hidden;transition:background-color var(--transition-normal),color var(--transition-normal)}main{margin-top:100px;transition:margin-top var(--transition-normal)}@media (max-width: 768px){main{margin-top:60px}}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:#1e293b80;border-radius:4px}::-webkit-scrollbar-thumb{background:var(--primary-color);border-radius:4px;transition:background var(--transition-normal)}::-webkit-scrollbar-thumb:hover{background:var(--secondary-color)}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace;background:#4990e21a;padding:2px 6px;border-radius:4px;color:var(--accent-color)}.tech-gradient{background:#4990e2;position:relative;overflow:hidden}.tech-gradient:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:radial-gradient(circle at 20% 50%,rgba(255,255,255,.2) 0%,transparent 50%),radial-gradient(circle at 80% 20%,rgba(255,255,255,.2) 0%,transparent 50%),radial-gradient(circle at 40% 80%,rgba(255,255,255,.1) 0%,transparent 50%);animation:gradientShift 15s ease infinite}.card{background:var(--card-bg);border:1px solid var(--border-color);border-radius:var(--radius-md);box-shadow:var(--shadow-md);padding:25px;transition:all var(--transition-normal);position:relative;overflow:hidden}.card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg),var(--shadow-glow);border-color:var(--primary-color)}.btn{display:inline-block;padding:12px 24px;border:none;border-radius:var(--radius-full);cursor:pointer;font-size:16px;font-weight:600;text-decoration:none;text-align:center;transition:all var(--transition-normal);position:relative;overflow:hidden;z-index:1}.btn:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.2),transparent);transition:left var(--transition-slow);z-index:-1}.btn:hover:before{left:100%}.btn-primary{background:var(--gradient-primary);color:#fff;box-shadow:var(--shadow-sm)}.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}.btn-secondary{background:transparent;color:var(--text-primary);border:2px solid var(--border-color)}.btn-secondary:hover{border-color:var(--primary-color);box-shadow:var(--shadow-glow);background:#667eea1a}.btn-outline{background:transparent;color:var(--primary-color);border:2px solid var(--primary-color)}.btn-outline:hover{background:var(--primary-color);color:var(--text-primary);box-shadow:var(--shadow-md)}.navbar{background:#0f172af2;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);box-shadow:var(--shadow-md);position:sticky;top:0;z-index:1000;transition:all var(--transition-normal)}body.light-mode .navbar{background:#fffffff2;box-shadow:var(--shadow-md)}.navbar.scrolled{box-shadow:var(--shadow-lg);padding:10px 0}.footer{background:#0f172afa;color:var(--text-secondary);padding:60px 0 30px;border-top:1px solid var(--border-color);position:relative;overflow:hidden}body.light-mode .footer{background:#fffffffa}.footer:before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:var(--gradient-primary)}.admin-layout{min-height:100vh;background:var(--dark-bg);color:var(--text-primary)}.admin-header{background:var(--card-bg);padding:0 24px;box-shadow:var(--shadow-md);border-bottom:1px solid var(--border-color)}.admin-sidebar{background:var(--card-bg);box-shadow:var(--shadow-md);border-right:1px solid var(--border-color)}.form-group{margin-bottom:20px}.form-label{display:block;margin-bottom:8px;color:var(--text-primary);font-weight:600;font-size:14px}.form-input{width:100%;padding:12px 16px;border:1px solid var(--border-color);border-radius:var(--radius-sm);background:#0f172a99;color:var(--text-primary);font-size:16px;transition:all var(--transition-fast)}.form-input:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #4990e21a;background:#0f172acc}.form-input::placeholder{color:var(--text-muted)}.form-textarea{width:100%;padding:12px 16px;border:1px solid var(--border-color);border-radius:var(--radius-sm);background:#0f172a99;color:var(--text-primary);font-size:16px;resize:vertical;min-height:120px;transition:all var(--transition-fast)}.form-textarea:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #4990e21a;background:#0f172acc}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeInLeft{0%{opacity:0;transform:translate(-30px)}to{opacity:1;transform:translate(0)}}@keyframes fadeInRight{0%{opacity:0;transform:translate(30px)}to{opacity:1;transform:translate(0)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.7}}@keyframes gradientShift{0%,to{transform:translate(0) translateY(0)}33%{transform:translate(-20px) translateY(10px)}66%{transform:translate(20px) translateY(-10px)}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-20px)}}@keyframes rotate{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.animate-fadeIn{animation:fadeIn .6s ease-out forwards}.animate-fadeInUp{animation:fadeInUp .6s ease-out forwards}.animate-fadeInLeft{animation:fadeInLeft .6s ease-out forwards}.animate-fadeInRight{animation:fadeInRight .6s ease-out forwards}.animate-pulse{animation:pulse 2s infinite}.animate-float{animation:float 6s ease-in-out infinite}.animate-rotate{animation:rotate 20s linear infinite}.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:30px}@media (max-width: 1024px){.card-grid{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:25px}}@media (max-width: 768px){:root{--radius-lg: 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0;position:relative}.divider:before{content:"";position:absolute;top:0;left:50%;transform:translate(-50%);width:60px;height:3px;background:var(--gradient-primary);border-radius:2px}.text-gradient{background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.text-center{text-align:center}.text-left{text-align:left}.text-right{text-align:right}.font-bold{font-weight:700}.font-semibold{font-weight:600}.font-medium{font-weight:500}.mt-1{margin-top:4px}.mt-2{margin-top:8px}.mt-3{margin-top:12px}.mt-4{margin-top:16px}.mt-5{margin-top:20px}.mt-6{margin-top:24px}.mt-8{margin-top:32px}.mt-10{margin-top:40px}.mb-1{margin-bottom:4px}.mb-2{margin-bottom:8px}.mb-3{margin-bottom:12px}.mb-4{margin-bottom:16px}.mb-5{margin-bottom:20px}.mb-6{margin-bottom:24px}.mb-8{margin-bottom:32px}.mb-10{margin-bottom:40px}.mx-auto{margin-left:auto;margin-right:auto}.max-w-sm{max-width:320px}.max-w-md{max-width:480px}.max-w-lg{max-width:640px}.max-w-xl{max-width:800px}.max-w-2xl{max-width:960px}.max-w-3xl{max-width:1120px}.max-w-full{max-width:100%}.hidden{display:none}.block{display:block}.inline-block{display:inline-block}.flex{display:flex}.grid{display:grid}.flex-center{display:flex;align-items:center;justify-content:center}.flex-between{display:flex;align-items:center;justify-content:space-between}.flex-column{display:flex;flex-direction:column}.relative{position:relative}.absolute{position:absolute}.fixed{position:fixed}.sticky{position:sticky}.z-0{z-index:0}.z-10{z-index:10}.z-20{z-index:20}.z-50{z-index:50}.z-100{z-index:100}.z-500{z-index:500}.z-1000{z-index:1000}