* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            min-height: 100vh;
            padding: 10px;
        }

        .container {
            max-width: 800px;
            margin: 0 auto;
            background: white;
            border-radius: 15px;
            box-shadow: 0 20px 40px rgba(0,0,0,0.1);
            overflow: hidden;
        }

        .header {
            background: linear-gradient(135deg, #2c3e50, #3498db);
            color: white;
            padding: 30px;
            text-align: center;
            position: relative;
        }

        .header h1 {
            font-size: 2.5em;
            margin-bottom: 10px;
            font-weight: 300;
        }

        .header p {
            opacity: 0.9;
            font-size: 1.1em;
        }

        .header-buttons {
            position: absolute;
            top: 20px;
            right: 20px;
            display: flex;
            gap: 10px;
        }

        .new-post-btn {
            background: #27ae60;
            color: white;
            border: none;
            padding: 10px 20px;
            border-radius: 25px;
            cursor: pointer;
            font-size: 0.9em;
            font-weight: 500;
            transition: all 0.3s ease;
        }

        .new-post-btn:hover {
            background: #219a52;
            transform: translateY(-2px);
        }
        
        .logout-btn {
            background: #8d42d3;
            color: white;
            border: none;
            padding: 10px 20px;
            border-radius: 25px;
            cursor: pointer;
            font-size: 0.9em;
            font-weight: 500;
            transition: all 0.3s ease;
        }

        .logout-btn:hover {
            background: #e290ec;
            transform: translateY(-2px);
        }
        
        .new-post-form {
            background: #f8f9fa;
            border-radius: 10px;
            padding: 25px;
            margin: 20px 30px;
            border-left: 4px solid #27ae60;
            display: none;
        }

        .new-post-form.visible {
            display: block;
        }

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

        .form-group label {
            display: block;
            margin-bottom: 8px;
            color: #2c3e50;
            font-weight: 500;
        }

        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 12px;
            border: 2px solid #e9ecef;
            border-radius: 8px;
            font-size: 1em;
            font-family: inherit;
            transition: border-color 0.3s ease;
        }

        .form-group input:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: #3498db;
        }

        .form-group textarea {
            min-height: 150px;
            resize: vertical;
        }

        .form-buttons {
            display: flex;
            gap: 10px;
            justify-content: flex-end;
        }

        .cancel-btn, .create-post-btn {
            border: none;
            padding: 10px 20px;
            border-radius: 20px;
            cursor: pointer;
            font-size: 0.9em;
            font-weight: 500;
            transition: all 0.3s ease;
        }

        .cancel-btn {
            background: #95a5a6;
            color: white;
        }

        .cancel-btn:hover {
            background: #7f8c8d;
        }

        .create-post-btn {
            background: #27ae60;
            color: white;
        }

        .create-post-btn:hover {
            background: #219a52;
        }

        .posts-container {
            padding: 30px;
        }

        .post-card {
            background: #f8f9fa;
            border-radius: 10px;
            padding: 25px;
            margin-bottom: 25px;
            border-left: 4px solid #3498db;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .post-card:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
        }

        .post-title {
            color: #2c3e50;
            font-size: 1.4em;
            margin-bottom: 15px;
            font-weight: 600;
        }

        .post-title.editable {
            border: 2px solid #3498db;
            background: #f8ffff;
            padding: 10px;
            border-radius: 5px;
        }

        .post-content {
            color: #000;
            line-height: 1.6;
            margin-bottom: 15px;
            background: white;
            padding: 15px;
            border-radius: 8px;
            border: 1px solid #e9ecef;
            position: relative;
            transition: max-height 0.3s ease;
        }

        .post-content.collapsed {
            max-height: 120px;
            overflow: hidden;
        }

        .post-content.collapsed::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 40px;
            background: linear-gradient(transparent, white);
        }

        .post-content.editable {
            border: 2px solid #3498db;
            background: #f8ffff;
        }

        .button-group {
            display: flex;
            gap: 10px;
            margin-top: 10px;
            flex-wrap: wrap;
        }

        .expand-btn, .edit-btn, .submit-btn, .delete-btn {
            border: none;
            padding: 8px 16px;
            border-radius: 20px;
            cursor: pointer;
            font-size: 0.9em;
            font-weight: 500;
            transition: all 0.3s ease;
        }

        .expand-btn {
            background: #3498db;
            color: white;
        }

        .expand-btn:hover {
            background: #2980b9;
            transform: translateY(-1px);
        }

        .edit-btn {
            background: #f39c12;
            color: white;
        }

        .edit-btn:hover {
            background: #e67e22;
            transform: translateY(-1px);
        }

        .delete-btn {
            background: #e74c3c;
            color: white;
        }

        .delete-btn:hover {
            background: #c0392b;
            transform: translateY(-1px);
        }

        .submit-btn {
            background: #27ae60;
            color: white;
            display: none;
        }

        .submit-btn:hover {
            background: #219a52;
            transform: translateY(-1px);
        }

        .submit-btn.visible {
            display: inline-block;
        }

        .post-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 15px;
            padding-top: 15px;
            border-top: 1px solid #e9ecef;
        }

        .time-badge {
            background: #e3f2fd;
            color: #1976d2;
            padding: 8px 15px;
            border-radius: 20px;
            font-size: 0.9em;
            font-weight: 500;
        }

        .event-time {
            background: #f3e5f5;
            color: #7b1fa2;
        }

        .empty-state {
            text-align: center;
            padding: 60px 40px;
            color: #666;
        }

        .empty-state h3 {
            margin-bottom: 10px;
            color: #2c3e50;
        }

        /* Login Form Styles */
        .login-form {
            max-width: 400px;
            margin: 0 auto;
            padding: 40px 30px;
            background: white;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
        }

        .login-form h2 {
            text-align: center;
            margin-bottom: 30px;
            color: #2c3e50;
            font-weight: 400;
        }

        .login-form .form-group {
            margin-bottom: 25px;
        }

        .login-form label {
            display: block;
            margin-bottom: 8px;
            color: #2c3e50;
            font-weight: 500;
        }

        .login-form input {
            width: 100%;
            padding: 12px 15px;
            border: 2px solid #e9ecef;
            border-radius: 8px;
            font-size: 1em;
            transition: border-color 0.3s ease;
        }

        .login-form input:focus {
            outline: none;
            border-color: #3498db;
        }

        .login-btn {
            width: 100%;
            background: #3498db;
            color: white;
            border: none;
            padding: 12px;
            border-radius: 8px;
            font-size: 1em;
            font-weight: 500;
            cursor: pointer;
            transition: background 0.3s ease;
        }

        .login-btn:hover {
            background: #2980b9;
        }

        @media (min-width: 1024px) {
            .container {
                max-width: 1000px;
            }
            .post-content {
                font-size: 1.2em;
            }            
        }
        
        @media (max-width: 768px) {
            .header-buttons {
                position: static;
                justify-content: center;
                margin-top: 15px;
            }
        }
        
        @media (max-width: 600px) {
            body {
                padding: 5px;
            }
            
            .container {
                margin: 5px;
                border-radius: 10px;
            }
            
            .header {
                padding: 20px 15px;
            }
            
            .header h1 {
                font-size: 1.8em;
            }
            
            .header-buttons {
                flex-direction: column;
                gap: 10px;
                width: 100%;
            }
            
            .new-post-btn, .logout-btn {
                width: 100%;
                text-align: center;
            }
            
            .new-post-form {
                margin: 15px;
            }
            
            .posts-container {
                padding: 15px;
            }
            
            .post-card {
                padding: 20px 15px;
            }
            
            .post-meta {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            
            .time-badge {
                padding: 6px 12px;
                font-size: 0.85em;
            }

            .button-group {
                flex-direction: column;
                align-items: flex-start;
            }

            .expand-btn, .edit-btn, .submit-btn, .delete-btn {
                width: 100%;
                text-align: center;
            }
            
            .login-form {
                padding: 30px 20px;
                margin: 20px;
            }
        }