:root{--button-bg: #ff113d;--primary-red: #ff4d6d;--secondary-pink: #ff85a1;--white: #ffffff;--light-gray: #f5f5f5;--dark-gray: #2c2c2c;--card-bg: #ffffff;--card-border: #ffd6dc;--shadow-color: rgba(255,77,109,.3)}header{background:linear-gradient(135deg,#ff4d6d,#ff8fab);color:#fff;padding:18px 40px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;box-shadow:0 4px 12px #00000026}header img{width:70px;height:auto}.header-nav{display:flex;gap:20px}.nav-link{text-decoration:none;color:#fff;font-weight:500;background:#ffffff26;padding:8px 14px;border-radius:20px;display:flex;align-items:center;gap:6px;transition:all .3s ease}.nav-link:hover{background:#fff;color:#ff4d6d;transform:translateY(-2px)}.nav-icon{font-size:14px}header h1{width:100%;text-align:center;margin-top:10px;font-size:28px;font-weight:700}header p{width:100%;text-align:center;font-size:14px;opacity:.95}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}body{font-family:Orbitron,sans-serif;background-color:var(--white);color:var(--dark-gray);line-height:1.6;transition:all .3s ease-in-out}header{background:linear-gradient(135deg,var(--primary-red),var(--secondary-pink));color:var(--white);text-align:center;padding:3rem 1rem;box-shadow:0 0 25px var(--shadow-color);animation:glow 3s infinite alternate}.Dash{align-items:end}@keyframes glow{0%{box-shadow:0 0 15px var(--secondary-pink)}to{box-shadow:0 0 30px var(--primary-red)}}header h1{font-size:3rem;margin:.5rem;text-shadow:1px 1px 3px rgba(0,0,0,.2)}header p{font-size:1.2rem;opacity:.9}.course-name{padding:2rem;text-align:center;display:flex;flex-wrap:wrap;justify-content:space-around;gap:1.5rem}h2{font-size:xx-large;color:var(--primary-red);display:flex;justify-content:center}.course-box{background:var(--card-bg);border:2px solid var(--card-border);padding:1.5rem;margin:1.5rem auto;max-width:300px;border-radius:12px;color:var(--dark-gray);position:relative;transition:transform .3s,border .3s;animation:borderpulse 4s infinite;box-shadow:0 4px 15px var(--shadow-color)}@keyframes borderpulse{0%{border-color:var(--secondary-pink)}33%{border-color:var(--primary-red)}66%{border-color:#ffc2d1}to{border-color:var(--secondary-pink)}}.course-box:hover{transform:scale(1.03);box-shadow:0 6px 20px var(--shadow-color)}.course-box h3{color:var(--primary-red)}.course-box a{text-decoration:none;color:var(--white);background:linear-gradient(135deg,var(--primary-red),var(--secondary-pink));display:flex;flex-direction:column;margin-top:1rem;border-radius:8px;transition:.3s;box-shadow:0 0 10px var(--shadow-color);padding:.5rem;justify-content:center}.course-box a:hover{transform:scale(1.05);background:linear-gradient(135deg,#ff6b81,#ff99ac)}.goal{background:var(--white);padding:2rem;text-align:center;border-top:2px dashed var(--primary-red);border-bottom:2px dashed var(--secondary-pink)}.goal h2{margin-bottom:1rem;color:var(--primary-red)}.goal ul{list-style:none}.goal li{margin:.5rem 0;font-size:1rem;color:var(--dark-gray)}footer{background:#fff0f3;text-align:center;padding:1rem;color:#444;font-size:.9rem;border-top:1px solid var(--card-border)}footer a{color:var(--primary-red);text-decoration:none;transition:color .3s}footer a:hover{color:var(--secondary-pink)}.progress-container{display:flex;justify-content:center;align-items:center;min-height:100vh;background-color:var(--dark-gray)}.progress-card{background:var(--card-bg);padding:2rem;border-radius:1.5rem;width:400px;text-align:center;box-shadow:0 8px 25px var(--shadow-color);border:2px solid var(--card-border);display:flex;flex-direction:column;gap:1rem;transition:transform .3s,box-shadow .3s}.progress-card:hover{transform:scale(1.03);box-shadow:0 10px 30px var(--shadow-color)}.progress-card h2{font-size:2rem;font-weight:700;color:var(--primary-red);margin-bottom:.5rem}.progress-card p{font-size:1.1rem;color:var(--secondary-pink);margin:.3rem 0}.progress-card p span{font-weight:700;color:var(--white)}.progress-bar-bg{width:100%;height:1rem;background-color:var(--secondary-pink);border-radius:999px;margin-top:1rem;overflow:hidden}.progress-bar-fill{height:100%;background-color:var(--primary-red);border-radius:999px;width:0%;transition:width .5s ease-in-out}.progress-card .motivation{margin-top:.5rem;font-style:italic;color:var(--secondary-pink)}.progress-message{color:var(--primary-red);text-align:center;font-size:1.1rem}.lesson{padding:20px;font-family:Segoe UI,sans-serif;line-height:1.6}.lesson ul{margin-left:20px}.lesson pre{font-size:14px;overflow-x:auto;background:var(--white);padding:1em;border-radius:8px;color:var(--primary-red)}.login-container{display:flex;justify-content:center;align-items:center;min-height:100vh;background:linear-gradient(135deg,#fff5f7,#ffd6dc)}.login-form{background:var(--card-bg);padding:2rem 2.5rem;border-radius:12px;box-shadow:0 8px 20px var(--shadow-color);display:flex;flex-direction:column;gap:1rem;width:320px;transition:transform .3s ease,box-shadow .3s ease}.login-form:hover{transform:scale(1.05);box-shadow:0 10px 25px var(--shadow-color)}button{background-color:var(--primary-red);border:none;color:var(--white);padding:10px 15px;margin:5px;cursor:pointer;border-radius:10px;transition:.3s}button:hover{background-color:#c9184a}button:disabled{background-color:gray;cursor:not-allowed}.Html-compiler{background:var(--card-bg);color:var(--dark-gray);padding:1.5rem;border-radius:1.5rem;box-shadow:0 0 20px var(--shadow-color);font-family:Courier New,monospace}textarea{background-color:var(--white);color:var(--dark-gray);border:2px solid var(--secondary-pink);width:100%;height:160px;padding:1rem;border-radius:.8rem;resize:vertical;outline:none}textarea::placeholder{color:#ff99ac}.output{background-color:var(--card-bg);border:2px solid var(--secondary-pink);margin-top:1.5rem;padding:1rem;border-radius:1rem}.output h3{color:var(--primary-red)}.dashboard{min-height:100vh;padding:3rem 2rem;display:flex;flex-direction:column;align-items:center;color:var(--dark-gray)}.dashboard-header{width:100%;max-width:800px;display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem;padding:1rem 2rem;border-radius:12px;background:linear-gradient(135deg,var(--primary-red),var(--secondary-pink));color:var(--white)}.dashboard-card{background:var(--card-bg);border:2px solid var(--card-border);border-radius:15px;padding:2rem;max-width:600px;width:100%;text-align:left;animation:borderpulse 4s infinite}.dashboard-card p{font-size:1.1rem;margin:.8rem 0}.dashboard-card strong{color:var(--primary-red)}.certificate-page{min-height:100vh;background:var(--light-gray);padding:40px;display:flex;justify-content:center}.certificate-wrapper{width:100%;max-width:1000px}.input-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:24px}input,select{padding:12px;border-radius:12px;border:1px solid var(--card-border);background:var(--white)}.generate-btn{background:var(--button-bg);color:var(--white);border:none;border-radius:12px;cursor:pointer;font-weight:600}.error-box{background:#ffe4e7;color:var(--primary-red);padding:10px;border-radius:10px;margin-bottom:20px}.certificate-card{position:relative;border-radius:20px;overflow:hidden;border:2px solid var(--card-border);box-shadow:0 0 30px var(--shadow-color);min-height:650px}.certificate-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.9}.certificate-content{position:relative;padding:40px;text-align:center;background:#ffffffd9}.badge-wrapper{position:absolute;top:-40px;left:50%;transform:translate(-50%)}.badge-circle{width:100px;height:100px;border-radius:50%;background:linear-gradient(135deg,var(--primary-red),var(--secondary-pink));box-shadow:0 0 40px var(--shadow-color)}.certificate-title{font-size:2.6rem;margin-top:50px}.certificate-title span{color:var(--primary-red)}.student-name{font-size:2rem;margin:20px 0;color:var(--primary-red)}.course-name{color:var(--secondary-pink)}.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:40px}.stat-box{background:var(--white);border:1px solid var(--card-border);border-radius:12px;padding:20px}.certificate-footer{display:grid;grid-template-columns:1fr 1fr 1fr;margin-top:40px;gap:16px}.feedback-box{background:var(--white);padding:12px;border-radius:10px;border:1px solid var(--card-border)}.powered strong{display:block;color:var(--primary-red)}.signature{text-align:right}.sign-line{height:2px;background:var(--primary-red);margin-bottom:6px}.action-buttons{margin-top:20px;display:flex;gap:16px}.action-buttons button{background:var(--primary-red);color:var(--white);border:none;padding:12px 20px;border-radius:10px;cursor:pointer}