.gradient-text,.main-header{background:var(--primary-gradient)}.card-modern,.main-header{box-shadow:var(--card-shadow)}:root{--primary-gradient:linear-gradient(135deg, #667eea 0%, #764ba2 100%);--secondary-gradient:linear-gradient(135deg, #f093fb 0%, #f5576c 100%);--success-gradient:linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);--warning-gradient:linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);--dark-gradient:linear-gradient(135deg, #434343 0%, #000000 100%);--light-bg:#f8f9ff;--card-shadow:0 10px 30px rgba(0,0,0,0.1);--hover-shadow:0 20px 40px rgba(0,0,0,0.15)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,sans-serif;background-color:var(--light-bg);color:#2c3e50;line-height:1.6;min-height:100vh;display:flex;flex-direction:column}.main-header{color:#fff;padding:1rem 0;position:sticky;top:0;z-index:1000}.navbar-brand{font-size:1.5rem;font-weight:700;color:#fff!important;text-decoration:none}.navbar-nav .nav-link{color:rgba(255,255,255,.9)!important;font-weight:500;margin:0 10px;transition:.3s;text-decoration:none}.navbar-nav .nav-link:hover{color:#fff!important;transform:translateY(-2px)}.main-content{flex:1}.main-footer{background:#2c3e50;color:#fff;padding:2rem 0;margin-top:auto}.main-footer a{color:#ecf0f1;text-decoration:none;transition:color .3s}.main-footer a:hover{color:#3498db}.gradient-text{-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.card-modern{border:none;border-radius:15px;transition:.3s}.card-modern:hover{transform:translateY(-5px);box-shadow:var(--hover-shadow)}.btn-gradient{background:var(--primary-gradient);border:none;color:#fff;padding:12px 30px;border-radius:25px;font-weight:600;transition:.3s}.btn-gradient:hover{transform:translateY(-2px);box-shadow:0 10px 20px rgba(102,126,234,.3);color:#fff}