@import"https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap";:root{--bg-color: #0f172a;--panel-bg: rgba(30, 41, 59, .6);--text-primary: #f8fafc;--text-secondary: #94a3b8;--accent: #3b82f6;--accent-hover: #60a5fa;--danger: #ef4444;--danger-hover: #f87171;--border: rgba(255, 255, 255, .1);--glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, .37);--glass-blur: blur(12px);--primary-gradient: linear-gradient(135deg, #3b82f6, #8b5cf6);--accent-glow: 0 0 20px rgba(59, 130, 246, .5)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Inter,sans-serif;color:var(--text-primary);min-height:100vh;background:linear-gradient(-45deg,#0f172a,#1e1b4b,#312e81,#0f172a);background-size:400% 400%;animation:gradientBG 15s ease infinite;background-attachment:fixed;display:flex;flex-direction:column;padding-top:env(safe-area-inset-top);padding-bottom:env(safe-area-inset-bottom)}@keyframes gradientBG{0%{background-position:0% 50%}50%{background-position:100% 50%}to{background-position:0% 50%}}.glass{background:var(--panel-bg);backdrop-filter:var(--glass-blur);-webkit-backdrop-filter:var(--glass-blur);border:1px solid var(--border);box-shadow:var(--glass-shadow);border-radius:16px}.container{width:90%;max-width:1000px;margin:0 auto;padding:2rem 0}h1,h2,h3{font-weight:600;letter-spacing:-.025em}h1{font-size:2.5rem;background:linear-gradient(to right,#60a5fa,#a855f7);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:2rem;text-align:center}p{color:var(--text-secondary);line-height:1.6}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.75rem 1.5rem;background-color:var(--accent);color:#fff;border:none;border-radius:8px;font-size:1rem;font-weight:500;cursor:pointer;transition:all .3s ease;font-family:Inter,sans-serif}.btn:hover{background-color:var(--accent-hover);transform:translateY(-2px);box-shadow:0 4px 12px #3b82f666}.btn-danger{background-color:var(--danger);padding:.5rem 1rem;font-size:.875rem}.btn-danger:hover{background-color:var(--danger-hover);box-shadow:0 4px 12px #ef444466}.form-group{display:flex;flex-direction:column;gap:.5rem;margin-bottom:1.5rem}.form-group label{font-size:.875rem;color:var(--text-secondary);font-weight:500}.form-control{padding:.75rem 1rem;background:#0f172a99;border:1px solid var(--border);border-radius:8px;color:#fff;font-size:1rem;font-family:Inter,sans-serif;transition:border-color .3s ease,box-shadow .3s ease}.form-control:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px #3b82f633}.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1.5rem;margin-top:2rem}.exercise-card{padding:1.5rem;display:flex;flex-direction:column;gap:1rem;transition:transform .3s ease}.exercise-card:hover{transform:translateY(-8px) scale(1.02);border-color:var(--accent);box-shadow:var(--accent-glow)}.exercise-card h3{font-size:1.25rem;color:var(--text-primary)}.auth-wrapper{min-height:100vh;display:flex;align-items:center;justify-content:center}.login-card{padding:3rem 2rem;width:100%;max-width:400px;text-align:center}.login-card h2{margin-bottom:.5rem}.login-card p{margin-bottom:2rem}.loading-wrapper{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1rem}.spinner{width:40px;height:40px;border:4px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}.fade-in{animation:fadeIn .5s ease-out forwards}.skeleton{background:linear-gradient(90deg,var(--panel-bg) 25%,rgba(255,255,255,.05) 50%,var(--panel-bg) 75%);background-size:200% 100%;animation:shimmer 1.5s infinite;border-radius:8px}.dashboard-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:3rem;padding-bottom:1.5rem;border-bottom:1px solid var(--border)}.dashboard-header .actions{display:flex;gap:1rem}