:root{--bg-primary:#f8fafc;--bg-secondary:#ffffff;--bg-tertiary:#f1f5f9;--bg-card:rgba(255, 255, 255, 0.9);--bg-card-hover:#ffffff;--bg-glass:rgba(255, 255, 255, 0.9);--bg-glass-hover:#ffffff;--text-primary:#0f172a;--text-secondary:#475569;--text-muted:#64748b;--accent-primary:#6366f1;--accent-secondary:#818cf8;--accent-gradient:linear-gradient(135deg, #6366f1, #818cf8, #f472b6);--accent-gradient-2:linear-gradient(135deg, #00cec9, #6c5ce7);--accent-glow:rgba(99, 102, 241, 0.3);--success:#00b894;--warning:#fdcb6e;--danger:#e17055;--info:#74b9ff;--border-color:#e2e8f0;--border-active:rgba(99, 102, 241, 0.5);--gender-male-text:#1d4ed8;--gender-female-text:#be185d;--gender-male-border:rgba(37,99,235,0.4);--gender-female-border:rgba(219,39,119,0.4);--font-family:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:24px;--radius-full:50px;--shadow-sm:0 2px 8px rgba(0, 0, 0, 0.05);--shadow-md:0 4px 20px rgba(0, 0, 0, 0.08);--shadow-lg:0 8px 40px rgba(0, 0, 0, 0.12);--shadow-glow:0 0 30px var(--accent-glow);--transition-fast:0.15s ease;--transition-normal:0.3s ease;--transition-slow:0.5s ease}[data-theme=dark]{--bg-primary:#0a0a1a;--bg-secondary:#111128;--bg-tertiary:#1a1a3e;--bg-card:rgba(26, 26, 62, 0.6);--bg-card-hover:rgba(35, 35, 80, 0.8);--bg-glass:rgba(255, 255, 255, 0.05);--bg-glass-hover:rgba(255, 255, 255, 0.08);--text-primary:#f0f0ff;--text-secondary:#a0a0cc;--text-muted:#6a6a99;--accent-primary:#6c5ce7;--accent-secondary:#a29bfe;--accent-gradient:linear-gradient(135deg, #6c5ce7, #a29bfe, #fd79a8);--accent-glow:rgba(108, 92, 231, 0.4);--border-color:rgba(255, 255, 255, 0.08);--border-active:rgba(108, 92, 231, 0.5);--shadow-sm:0 2px 8px rgba(0, 0, 0, 0.3);--shadow-md:0 4px 20px rgba(0, 0, 0, 0.4);--shadow-lg:0 8px 40px rgba(0, 0, 0, 0.5);--gender-male-text:#93c5fd;--gender-female-text:#f9a8d4;--gender-male-border:rgba(59,130,246,0.4);--gender-female-border:rgba(236,72,153,0.4)}[data-theme=ocean]{--bg-primary:#0f172a;--bg-secondary:#1e293b;--bg-tertiary:#334155;--bg-card:rgba(30, 41, 59, 0.8);--bg-card-hover:rgba(51, 65, 85, 0.9);--bg-glass:rgba(255, 255, 255, 0.05);--bg-glass-hover:rgba(255, 255, 255, 0.08);--accent-primary:#0ea5e9;--accent-secondary:#38bdf8;--accent-gradient:linear-gradient(135deg, #0ea5e9, #38bdf8);--accent-glow:rgba(14, 165, 233, 0.4)}[data-theme=forest]{--bg-primary:#064e3b;--bg-secondary:#065f46;--bg-tertiary:#047857;--bg-card:rgba(6, 95, 70, 0.6);--bg-card-hover:rgba(4, 120, 87, 0.8);--bg-glass:rgba(255, 255, 255, 0.05);--accent-primary:#10b981;--accent-secondary:#34d399;--accent-gradient:linear-gradient(135deg, #10b981, #34d399);--accent-glow:rgba(16, 185, 129, 0.4)}[data-theme=sunset]{--bg-primary:#450a0a;--bg-secondary:#7f1d1d;--bg-tertiary:#991b1b;--bg-card:rgba(127, 29, 29, 0.6);--bg-card-hover:rgba(153, 27, 27, 0.8);--accent-primary:#f97316;--accent-secondary:#fb923c;--accent-gradient:linear-gradient(135deg, #f97316, #fb923c, #f43f5e);--accent-glow:rgba(249, 115, 22, 0.4)}[data-theme=neon]{--bg-primary:#2e1065;--bg-secondary:#4c1d95;--bg-tertiary:#5b21b6;--bg-card:rgba(76, 29, 149, 0.6);--bg-card-hover:rgba(91, 33, 182, 0.8);--accent-primary:#d946ef;--accent-secondary:#e879f9;--accent-gradient:linear-gradient(135deg, #d946ef, #e879f9, #38bdf8);--accent-glow:rgba(217, 70, 239, 0.6)}[data-theme=rose]{--bg-primary:#4c0519;--bg-secondary:#881337;--bg-tertiary:#9f1239;--bg-card:rgba(136, 19, 55, 0.6);--bg-card-hover:rgba(159, 18, 57, 0.8);--accent-primary:#f43f5e;--accent-secondary:#fb7185;--accent-gradient:linear-gradient(135deg, #f43f5e, #fb7185);--accent-glow:rgba(244, 63, 94, 0.4)}*,::after,::before{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth;font-size:16px}body{font-family:var(--font-family);background:var(--bg-primary);color:var(--text-primary);line-height:1.6;overflow-x:hidden;min-height:100vh;min-height:100dvh}a{color:var(--accent-secondary);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--accent-primary)}img{max-width:100%;display:block}.bg-animation{position:fixed;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:0;overflow:hidden}.bg-orb{position:absolute;border-radius:50%;filter:blur(80px);opacity:.3;animation:20s ease-in-out infinite floatOrb}.bg-orb-1{width:400px;height:400px;background:var(--accent-primary);top:-100px;right:-100px;animation-delay:0s}.bg-orb-2{width:300px;height:300px;background:#fd79a8;bottom:-50px;left:-50px;animation-delay:-7s}.bg-orb-3{width:250px;height:250px;background:#00cec9;top:50%;left:50%;animation-delay:-14s}@keyframes floatOrb{0%,100%{transform:translate(0,0) scale(1)}25%{transform:translate(50px,-80px) scale(1.1)}50%{transform:translate(-30px,60px) scale(.9)}75%{transform:translate(40px,40px) scale(1.05)}}.container{max-width:1200px;margin:0 auto;padding:0 20px}.navbar{position:fixed;top:0;left:0;right:0;z-index:9999;padding:15px 0;background:var(--bg-glass);backdrop-filter:blur(20px);border-bottom:1px solid var(--border-color);transition:all var(--transition-normal)}.nav-container{max-width:1200px;margin:0 auto;padding:0 20px;display:flex;align-items:center;justify-content:space-between}.nav-logo{display:flex;align-items:center;gap:8px;text-decoration:none;color:var(--text-primary)}.logo-icon{font-size:28px}.logo-text{font-size:22px;font-weight:800;letter-spacing:-.5px}.logo-highlight{background:var(--accent-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.nav-links{display:flex;align-items:center;gap:24px}.nav-link{color:var(--text-secondary);font-weight:500;font-size:14px;transition:color var(--transition-fast)}.nav-link:hover{color:var(--text-primary)}.nav-mobile-toggle{display:none;flex-direction:column;gap:5px;background:0 0;border:none;cursor:pointer;padding:5px;z-index:10001}.nav-mobile-toggle span{width:24px;height:2px;background:var(--text-primary);border-radius:2px;transition:all var(--transition-fast)}.mobile-nav{display:none;position:fixed;top:0;left:0;right:0;bottom:0;z-index:10000;background:var(--bg-glass);backdrop-filter:blur(20px);padding:80px 20px 20px;flex-direction:column;gap:12px;border-bottom:1px solid var(--border-color);transform:translateX(100%);opacity:0;transition:all var(--transition-normal);pointer-events:none}.mobile-nav.active{display:flex;transform:translateX(0);opacity:1;pointer-events:auto}.mobile-nav-link{color:var(--text-secondary);padding:10px;font-weight:500}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 24px;border:none;border-radius:var(--radius-full);font-family:var(--font-family);font-weight:600;font-size:14px;cursor:pointer;transition:all var(--transition-normal);text-decoration:none;white-space:nowrap}.btn-primary{background:var(--accent-gradient);color:#fff;box-shadow:0 4px 15px var(--accent-glow)}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 25px var(--accent-glow)}.btn-outline{background:0 0;color:var(--text-primary);border:1px solid var(--border-color)}.btn-outline:hover{background:var(--bg-glass-hover);border-color:var(--accent-primary)}.btn-sm{padding:8px 18px;font-size:13px}.btn-lg{padding:14px 32px;font-size:16px}.btn-block{width:100%}.btn-glow{position:relative;overflow:hidden}.btn-glow::before{content:'';position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.2),transparent);animation:3s infinite shimmer}@keyframes shimmer{100%{left:100%}}.hero{position:relative;z-index:1;min-height:100vh;display:flex;align-items:center;justify-content:center;padding:100px 20px 60px}.hero-content{max-width:680px;text-align:center}.hero-badge{display:inline-block;padding:8px 20px;background:var(--bg-glass);border:1px solid var(--border-color);border-radius:var(--radius-full);font-size:13px;font-weight:500;color:var(--text-secondary);margin-bottom:24px;backdrop-filter:blur(10px)}.hero-title{font-size:clamp(2.5rem, 6vw, 4rem);font-weight:900;line-height:1.15;margin-bottom:20px;letter-spacing:-1px}.gradient-text{background:var(--accent-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.gradient-text-2{background:var(--accent-gradient-2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hero-subtitle{font-size:18px;color:var(--text-secondary);margin-bottom:40px;line-height:1.7}.quick-join-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-xl);padding:32px;backdrop-filter:blur(20px);margin-bottom:40px;text-align:left}.quick-join-title{font-size:18px;font-weight:700;margin-bottom:20px;text-align:center}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:16px}.form-group{display:flex;flex-direction:column;gap:6px}.form-group label{font-size:12px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px}.form-group input,.form-group select{padding:12px 16px;background:var(--bg-glass);border:1px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-primary);font-family:var(--font-family);font-size:14px;transition:all var(--transition-fast);outline:0}.form-group input:focus,.form-group select:focus{border-color:var(--accent-primary);box-shadow:0 0 0 3px var(--accent-glow)}.form-group input::placeholder{color:var(--text-muted)}.form-group select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23a0a0cc' d='M6 8L1 3h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;padding-right:36px}.form-group select option{background:var(--bg-secondary);color:var(--text-primary)}.quick-join-note{text-align:center;font-size:12px;color:var(--text-muted);margin-top:12px}.captcha-row{display:flex;align-items:center;gap:12px;margin-bottom:16px;padding:14px 16px;background:rgba(108,92,231,.08);border:1px solid rgba(108,92,231,.2);border-radius:var(--radius-md)}.captcha-challenge{flex:1;display:flex;flex-direction:column;gap:4px}.captcha-label{font-size:11px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px}.captcha-question{display:flex;align-items:center;gap:8px}.captcha-question span{font-size:20px;font-weight:800;font-family:'Courier New',monospace;color:var(--accent-secondary);letter-spacing:2px;text-shadow:0 0 8px var(--accent-glow);user-select:none}.captcha-refresh{background:0 0;border:none;font-size:16px;cursor:pointer;padding:4px;border-radius:50%;transition:all var(--transition-fast);line-height:1}.captcha-refresh:hover{transform:rotate(180deg)}.captcha-input{width:80px;padding:10px 14px!important;text-align:center;font-size:18px!important;font-weight:700!important;font-family:'Courier New',monospace!important;background:var(--bg-glass)!important;border:1px solid var(--border-color)!important;border-radius:var(--radius-md)!important;color:var(--text-primary)!important;outline:0}.captcha-input:focus{border-color:var(--accent-primary)!important;box-shadow:0 0 0 3px var(--accent-glow)!important}.hero-stats{display:flex;align-items:center;justify-content:center;gap:30px}.stat{display:flex;flex-direction:column;align-items:center}.stat-number{font-size:28px;font-weight:800;background:var(--accent-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.stat-label{font-size:12px;color:var(--text-muted);font-weight:500}.stat-divider{width:1px;height:40px;background:var(--border-color)}.rooms-section{position:relative;z-index:1;padding:80px 0}.section-title{font-size:clamp(1.8rem, 4vw, 2.5rem);font-weight:800;text-align:center;margin-bottom:12px}.section-subtitle{text-align:center;color:var(--text-secondary);margin-bottom:40px}.room-tabs{display:flex;justify-content:center;gap:8px;margin-bottom:32px;flex-wrap:wrap}.room-tab{padding:10px 20px;border:1px solid var(--border-color);border-radius:var(--radius-full);background:0 0;color:var(--text-secondary);font-family:var(--font-family);font-size:13px;font-weight:600;cursor:pointer;transition:all var(--transition-fast)}.room-tab:hover{background:var(--bg-glass-hover);color:var(--text-primary)}.room-tab.active{background:var(--accent-gradient);color:#fff;border-color:transparent}.room-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}.room-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:24px;cursor:pointer;transition:all var(--transition-normal);backdrop-filter:blur(10px);position:relative;overflow:hidden}.room-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:var(--accent-gradient);opacity:0;transition:opacity var(--transition-normal)}.room-card:hover{background:var(--bg-card-hover);border-color:var(--border-active);transform:translateY(-4px);box-shadow:var(--shadow-md)}.room-card:hover::before{opacity:1}.room-card-header{display:flex;align-items:center;gap:12px;margin-bottom:10px}.room-icon{font-size:28px;width:48px;height:48px;display:flex;align-items:center;justify-content:center;background:var(--bg-glass);border-radius:var(--radius-md)}.room-name{font-size:16px;font-weight:700}.room-description{font-size:13px;color:var(--text-muted);margin-bottom:12px}.room-meta{display:flex;align-items:center;justify-content:space-between}.room-users-count{font-size:12px;color:var(--success);font-weight:600;display:flex;align-items:center;gap:4px}.room-users-count::before{content:'';width:6px;height:6px;background:var(--success);border-radius:50%;animation:2s infinite pulse}@keyframes pulse{0%,100%{opacity:1}50%{opacity:.3}}.room-category-badge{font-size:11px;padding:3px 10px;border-radius:var(--radius-full);background:var(--bg-glass);color:var(--text-muted);text-transform:capitalize}.features-section{position:relative;z-index:1;padding:80px 0}.features-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:20px}.feature-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:32px;transition:all var(--transition-normal)}.feature-card:hover{transform:translateY(-4px);border-color:var(--border-active);box-shadow:var(--shadow-md)}.feature-icon{font-size:36px;margin-bottom:16px}.feature-card h3{font-size:18px;font-weight:700;margin-bottom:8px}.feature-card p{font-size:14px;color:var(--text-secondary);line-height:1.6}.footer{position:relative;z-index:1;padding:60px 0 20px;border-top:1px solid var(--border-color)}.footer-content{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;margin-bottom:40px}.footer-desc{color:var(--text-muted);font-size:14px;margin-top:12px}.footer-links-group h4{font-size:14px;font-weight:700;margin-bottom:16px;color:var(--text-secondary)}.footer-links-group a{display:block;color:var(--text-muted);font-size:14px;margin-bottom:8px;transition:color var(--transition-fast)}.footer-links-group a:hover{color:var(--text-primary)}.footer-bottom{text-align:center;padding-top:20px;border-top:1px solid var(--border-color)}.footer-bottom p{font-size:12px;color:var(--text-muted)}.modal-overlay{display:none;position:fixed;top:0;left:0;right:0;bottom:0;z-index:2000;background:rgba(0,0,0,.7);backdrop-filter:blur(8px);justify-content:center;align-items:center;padding:20px}.modal-overlay.active{display:flex}.modal{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-xl);padding:36px;max-width:440px;width:100%;position:relative;animation:.3s modalSlideIn;overflow:hidden;box-sizing:border-box}.modal .form-row{display:flex;gap:12px}.modal .form-row .form-group{flex:1;min-width:0}.modal .form-row input{width:100%;box-sizing:border-box}@keyframes modalSlideIn{from{opacity:0;transform:translateY(20px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}.modal-close{position:absolute;top:16px;right:20px;background:0 0;border:none;color:var(--text-muted);font-size:24px;cursor:pointer;transition:color var(--transition-fast)}.modal-close:hover{color:var(--text-primary)}.modal-title{font-size:24px;font-weight:800;margin-bottom:8px}.modal-subtitle{font-size:14px;color:var(--text-muted);margin-bottom:24px}.modal-footer-text{text-align:center;font-size:13px;color:var(--text-muted);margin-top:20px}.modal-footer-text a{color:var(--accent-secondary);font-weight:600}.toast-container{top:80px;display:flex;flex-direction:column}.toast{border-radius:var(--radius-md);font-size:14px;animation:.3s toastSlide;backdrop-filter:blur(10px);border:1px solid var(--border-color);max-width:350px}.toast-success{background:rgba(0,184,148,.2);color:var(--success);border-color:rgba(0,184,148,.3)}.toast-error{background:rgba(225,112,85,.2);color:var(--danger);border-color:rgba(225,112,85,.3)}@keyframes toastSlide{from{opacity:0;transform:translateX(100px)}to{opacity:1;transform:translateX(0)}}@media (max-width:768px){.nav-links{display:none!important}.nav-mobile-toggle{display:flex}.form-row{grid-template-columns:1fr}.hero{padding:80px 20px 40px}.hero-title{font-size:2rem}.hero-subtitle{font-size:15px}.quick-join-card{padding:24px 20px}.hero-stats{gap:20px}.stat-number{font-size:22px}.features-grid,.room-grid{grid-template-columns:1fr}.footer-content{grid-template-columns:1fr;gap:24px}}@media (max-width:480px){.hero-title{font-size:1.7rem}.room-tabs{gap:4px}.room-tab{padding:8px 14px;font-size:12px}}     .faq-section{padding:80px 0;position:relative;z-index:2}.faq-accordion{margin-top:40px;display:flex;flex-direction:column;gap:15px}.faq-item{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);overflow:hidden;transition:.3s}.faq-item:hover{border-color:var(--accent-primary);box-shadow:0 4px 15px rgba(108,92,231,.1)}.faq-item.active{border-color:var(--accent-primary);box-shadow:0 4px 15px rgba(108,92,231,.15)}.faq-question{width:100%;display:flex;justify-content:space-between;align-items:center;padding:20px 24px;background:0 0;border:none;color:var(--text-primary);font-family:var(--font-family);font-size:1.1rem;font-weight:600;text-align:left;cursor:pointer;transition:color .3s}.faq-question:hover{color:var(--accent-primary)}.faq-icon{font-size:1.5rem;color:var(--accent-secondary);font-weight:400;transition:transform .3s}.faq-item.active .faq-icon{transform:rotate(180deg)}.faq-answer{max-height:0;overflow:hidden;transition:max-height .4s,padding .4s;background:rgba(0,0,0,.1)}.faq-item.active .faq-answer{max-height:200px;padding:0 24px 24px}.faq-answer p{color:var(--text-secondary);line-height:1.6;font-size:.95rem;margin:0}.toast-container{position:fixed;bottom:20px;right:20px;z-index:9999;display:flex;flex-direction:column;gap:10px}.toast{padding:12px 24px;background:var(--bg-card);color:var(--text-primary);border-left:4px solid var(--accent-primary);border-radius:var(--radius-sm);box-shadow:var(--shadow-lg);font-weight:500;backdrop-filter:blur(10px);transform:translateX(0);opacity:1;transition:all var(--transition-normal)}.toast-error{border-left-color:var(--danger)}.toast-success{border-left-color:var(--success)}