* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }

        body {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            min-height: 100vh;
            padding: 20px;
            position: relative;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
        }

        header {
            text-align: center;
            color: white;
            margin-bottom: 30px;
            padding: 20px;
        }

        h1 {
            font-size: 2.5rem;
            margin-bottom: 10px;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }

        .subtitle {
            font-size: 1.2rem;
            opacity: 0.9;
        }

        .app-container {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
        }

        @media (min-width: 768px) {
            .app-container {
                grid-template-columns: 1fr 2fr;
            }
        }

        .form-section {
            background: white;
            border-radius: 15px;
            padding: 25px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.2);
        }

        .schedule-section {
            background: white;
            border-radius: 15px;
            padding: 25px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.2);
            min-height: 500px;
        }

        h2 {
            color: #333;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #f0f0f0;
        }

        .form-group {
            margin-bottom: 20px;
        }

        label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: #555;
        }

        input, select, textarea {
            width: 100%;
            padding: 12px;
            border: 2px solid #e0e0e0;
            border-radius: 8px;
            font-size: 16px;
            transition: border-color 0.3s;
        }

        input:focus, select:focus, textarea:focus {
            border-color: #667eea;
            outline: none;
        }

        button {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            border: none;
            padding: 14px 20px;
            border-radius: 8px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: transform 0.2s, box-shadow 0.2s;
            width: 100%;
        }

        button:hover {
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(0,0,0,0.2);
        }

        .schedule-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 15px;
        }

        .schedule-card {
            background: #f8f9fa;
            border-left: 5px solid #667eea;
            border-radius: 8px;
            padding: 15px;
            box-shadow: 0 3px 10px rgba(0,0,0,0.1);
            transition: transform 0.2s;
        }

        .schedule-card:hover {
            transform: translateY(-3px);
        }

        .subject {
            font-weight: 700;
            font-size: 1.2rem;
            color: #333;
            margin-bottom: 5px;
        }

        .time {
            color: #666;
            font-size: 0.9rem;
            margin-bottom: 8px;
        }

        .topic {
            color: #777;
            font-size: 0.95rem;
            margin-bottom: 10px;
        }

        .priority {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
        }

        .priority-high {
            background: #ffebee;
            color: #d32f2f;
        }

        .priority-medium {
            background: #fff3e0;
            color: #f57c00;
        }

        .priority-low {
            background: #e8f5e8;
            color: #388e3c;
        }

        .empty-state {
            text-align: center;
            padding: 40px;
            color: #777;
        }

        .empty-state i {
            font-size: 50px;
            margin-bottom: 15px;
            opacity: 0.5;
        }

        .day-filter {
            display: flex;
            gap: 10px;
            margin-bottom: 20px;
            flex-wrap: wrap;
        }

        .day-btn {
            padding: 8px 15px;
            background: #f0f0f0;
            border: none;
            border-radius: 20px;
            cursor: pointer;
            transition: all 0.3s;
        }

        .day-btn.active {
            background: #667eea;
            color: white;
        }

        /* Made with love section */
        .creator-section {
            text-align: center;
            margin-top: 40px;
            padding: 20px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 15px;
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.2);
        }

        .creator-heart {
            color: #ff4757;
            font-size: 1.5rem;
            animation: heartbeat 1.5s ease-in-out infinite;
        }

        .creator-text {
            color: white;
            font-size: 1.1rem;
            margin: 10px 0;
        }

        .creator-name {
            color: #ffd700;
            font-weight: bold;
            font-size: 1.3rem;
            text-shadow: 0 0 10px rgba(255, 215, 0, 0.5);
        }

        .creator-subtext {
            color: rgba(255, 255, 255, 0.8);
            font-size: 0.9rem;
            font-style: italic;
        }

        @keyframes heartbeat {
            0% { transform: scale(1); }
            25% { transform: scale(1.1); }
            50% { transform: scale(1); }
            75% { transform: scale(1.1); }
            100% { transform: scale(1); }
        }

        /* Floating hearts animation */
        .floating-hearts {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
            z-index: -1;
        }

        .heart {
            position: absolute;
            color: rgba(255, 255, 255, 0.3);
            font-size: 20px;
            animation: float 6s ease-in-out infinite;
        }

        @keyframes float {
            0% {
                transform: translateY(100vh) rotate(0deg);
                opacity: 0;
            }
            10% {
                opacity: 1;
            }
            90% {
                opacity: 1;
            }
            100% {
                transform: translateY(-100px) rotate(360deg);
                opacity: 0;
            }
        }

        @media (max-width: 480px) {
            h1 {
                font-size: 2rem;
            }
            
            .form-section, .schedule-section {
                padding: 15px;
            }
            
            .schedule-grid {
                grid-template-columns: 1fr;
            }

            .creator-text {
                font-size: 1rem;
            }

            .creator-name {
                font-size: 1.1rem;
            }
        }