:root{--bg-color: #050505;--surface-color: rgba(255, 255, 255, .03);--border-color: rgba(255, 255, 255, .08);--primary-color: #3b82f6;--primary-glow: rgba(59, 130, 246, .4);--secondary-color: #10b981;--accent-action: #f97316;--text-primary: #f8fafc;--text-secondary: #94a3b8;--glass-bg: rgba(15, 23, 42, .6);--font-main: "Inter", system-ui, -apple-system, sans-serif}*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}body{background-color:var(--bg-color);color:var(--text-primary);font-family:var(--font-main);min-height:100vh;overflow-x:hidden;line-height:1.5}.bg-glow{position:fixed;width:500px;height:500px;background:radial-gradient(circle,var(--primary-glow) 0%,transparent 70%);filter:blur(80px);z-index:-1;opacity:.4;pointer-events:none}.glow-top{top:-100px;right:-100px}.glow-bottom{bottom:-100px;left:-100px}.glass-card{background:var(--surface-color);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--border-color);border-radius:28px;padding:1rem;transition:all .4s cubic-bezier(.4,0,.2,1)}.glass-card:hover{border-color:#ffffff26;background:#ffffff0d}.btn-premium{background:var(--primary-color);color:#0a0a0a;border:none;padding:1.2rem 2.5rem;border-radius:16px;font-weight:700;font-size:1rem;cursor:pointer;box-shadow:0 10px 30px var(--primary-glow);transition:all .3s ease;display:flex;align-items:center;justify-content:center;gap:.8rem;text-transform:uppercase;letter-spacing:1px}.btn-premium:hover{transform:translateY(-2px);filter:brightness(1.1);box-shadow:0 15px 40px var(--primary-glow)}.btn-premium:active{transform:translateY(0) scale(.98)}.timer-display{font-size:6rem;font-weight:900;text-align:center;margin:1.5rem 0;color:#fff;text-shadow:0 0 20px rgba(255,255,255,.2);font-variant-numeric:tabular-nums;letter-spacing:-2px;line-height:1;transition:all .3s ease}.timer-active{color:var(--secondary-color);text-shadow:0 0 30px var(--secondary-color),0 0 60px rgba(16,185,129,.4);animation:pulseGlow 1s infinite alternate}@keyframes pulseGlow{0%{transform:scale(1);filter:brightness(1)}to{transform:scale(1.05);filter:brightness(1.3)}}.progress-pill{background:#10b9811a;border:1px solid rgba(16,185,129,.2);color:var(--secondary-color);padding:.5rem 1.2rem;border-radius:50px;font-size:.85rem;font-weight:700}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000e6;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);z-index:1000;display:flex;align-items:center;justify-content:center;padding:1rem}.modal-content{max-width:650px;width:100%;max-height:85vh;overflow-y:auto;padding:0;position:relative;animation:modalIn .3s cubic-bezier(.16,1,.3,1)}@keyframes modalIn{0%{opacity:0;transform:scale(.95) translateY(20px)}to{opacity:1;transform:scale(1) translateY(0)}}.modal-media{background:#000;width:100%;aspect-ratio:16 / 9;display:flex;align-items:center;justify-content:center;position:relative}.modal-media img,.modal-media video{width:100%;height:100%;object-fit:contain}.modal-header{padding:1.5rem;text-align:center;border-bottom:1px solid var(--border-color)}.modal-timer-container{margin:1rem 0;display:flex;flex-direction:column;align-items:center;gap:.5rem}.placeholder-media{text-align:center;color:#444;font-family:monospace}.exercise-metrics{display:flex;gap:1rem;justify-content:center;padding:1.5rem;flex-wrap:wrap}.metric-pill{flex:0 1 120px;background:#ffffff08;padding:.6rem;border-radius:12px;text-align:center;border:1px solid rgba(255,255,255,.05)}.metric-pill .label{display:block;font-size:.65rem;color:var(--text-secondary);text-transform:uppercase;margin-bottom:.3rem}.metric-pill .val{font-size:1.1rem;font-weight:800;color:var(--primary-color)}.close-btn{background:#0006;border:none;color:#fff;font-size:2rem;line-height:1;cursor:pointer;opacity:.8;transition:.2s;position:absolute;top:1rem;right:1rem;z-index:9999;border-radius:50%;width:40px;height:40px;display:flex;align-items:center;justify-content:center;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.close-btn:hover{opacity:1;transform:rotate(90deg)}.exercise-card{transition:.2s;cursor:pointer}.exercise-card:hover{transform:translate(5px);background:#ffffff14;border-color:var(--primary-color)}.badge{background:var(--primary-color);color:#fff;padding:.4rem .8rem;border-radius:20px;font-size:.75rem;font-weight:800}@keyframes fadeInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.animate-up{animation:fadeInUp .8s cubic-bezier(.2,.8,.2,1) forwards}.container{max-width:800px;margin:0 auto;padding:2rem;min-height:100vh;position:relative;z-index:1}.auth-container{display:flex;flex-direction:column;justify-content:center;align-items:center;min-height:100vh;width:100%}::-webkit-scrollbar{width:8px;height:4px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:10px}::-webkit-scrollbar-thumb:hover{background:#fff3}@media (max-width: 1024px){.container{padding:1.2rem}.glass-card{padding:1.2rem;border-radius:20px}.timer-display{font-size:4rem}.btn-premium{padding:1rem 1.8rem;font-size:.95rem;border-radius:14px}h1{font-size:2rem!important}}@media (max-width: 768px){.container{padding:1rem}.glass-card{padding:1rem;border-radius:16px}.timer-display{font-size:3.5rem}.btn-premium{padding:.9rem 1.5rem;font-size:.9rem;border-radius:12px}h1{font-size:1.8rem!important}}@media (max-width: 480px){.container{padding:.5rem}.glass-card{padding:.8rem;border-radius:12px}.timer-display{font-size:3rem}.btn-premium{padding:.8rem 1.2rem;font-size:.85rem;border-radius:10px}h1{font-size:1.6rem!important}.nav-container{margin-bottom:1.5rem!important}.nav-button{min-width:0!important;padding:.6rem .1rem!important}}input[type=password],input[type=text]{background:#ffffff08;border:1px solid var(--border-color);padding:1.2rem;border-radius:16px;color:#fff;font-size:1.1rem;width:100%;text-align:center;outline:none;transition:all .3s ease}input[type=password]:focus,input[type=text]:focus{border-color:var(--primary-color);background:#ffffff0f;box-shadow:0 0 15px var(--primary-glow)}.hide-scrollbar::-webkit-scrollbar{display:none}.hide-scrollbar{-ms-overflow-style:none;scrollbar-width:none}body,html{-webkit-touch-callout:none;-webkit-user-select:none;-khtml-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none}input,textarea{-webkit-user-select:text!important;-khtml-user-select:text!important;-moz-user-select:text!important;-ms-user-select:text!important;user-select:text!important}@media print{body{display:none!important}}@keyframes dermacleanPulse{0%{box-shadow:0 0 #4a5d4e66;transform:scale(1)}70%{box-shadow:0 0 0 8px #4a5d4e00;transform:scale(1.05)}to{box-shadow:0 0 #4a5d4e00;transform:scale(1)}}.dermaclean-pulse{animation:dermacleanPulse 2s infinite ease-in-out}