:root {
            --bg-color: #ffffff;
            --text-main: #1d1d1f;
            --text-muted: #86868b;
            --input-bg: #f5f5f7;
            --accent-blue: #0071e3;
            --accent-blue-hover: #0077ed;
            --error-red: #ff3b30;
            --success-green: #34c759;
            --border-grey: #c1c1c5;
        }

        body {
            font-family: 'Poppins', -apple-system, BlinkMacSystemFont, sans-serif;
            background-color: var(--bg-color);
            color: var(--text-main);
            margin: 0;
            padding: 60px 20px;
            display: flex;
            justify-content: center;
        }

        .form-container {
            width: 100%;
            max-width: 540px;
        }

        h2 {
            font-size: 32px;
            font-weight: 600;
            letter-spacing: -0.5px;
            margin-top: 0;
            margin-bottom: 40px;
        }

        .form-group {
            margin-bottom: 28px;
        }

        label {
            display: block;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-muted);
            margin-bottom: 8px;
        }

        input[type="text"],
        input[type="email"],
        input[type="date"],
        input[type="number"],
        select,
        textarea {
            width: 100%;
            padding: 16px;
            font-family: 'Poppins', sans-serif;
            font-size: 16px;
            background-color: var(--input-bg);
            border: 1px solid var(--border-grey);
            border-radius: 14px;
            box-sizing: border-box;
            transition: all 0.2s ease;
            color: var(--text-main);
        }

        select {
            appearance: none;
            background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2386868b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
            background-repeat: no-repeat;
            background-position: right 16px center;
            background-size: 16px;
            cursor: pointer;
        }

        textarea {
            resize: vertical;
            height: 100px;
        }

        input:focus, select:focus, textarea:focus {
            outline: none;
            background-color: var(--bg-color);
            border-color: var(--accent-blue);
            box-shadow: 0 0 0 4px rgba(0, 113, 227, 0.15);
        }

        .date-input-group {
            display: flex;
            gap: 12px;
            margin-bottom: 16px;
        }

        button {
            font-family: 'Poppins', sans-serif;
            background-color: var(--accent-blue);
            color: white;
            border: none;
            padding: 14px 24px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 500;
            cursor: pointer;
            transition: background-color 0.2s ease, transform 0.1s ease;
        }

        button:hover {
            background-color: var(--accent-blue-hover);
        }

        button:active {
            transform: scale(0.98);
        }

        .add-btn {
            flex-shrink: 0;
            padding: 14px 28px;
        }

        .dates-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .date-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 16px;
            background-color: var(--input-bg);
            border-radius: 14px;
        }

        .date-item span {
            font-size: 15px;
            font-weight: 500;
        }

        .remove-btn {
            background-color: transparent;
            color: var(--error-red);
            padding: 6px 12px;
            font-size: 13px;
        }

        .remove-btn:hover {
            background-color: rgba(255, 59, 48, 0.1);
        }

        .total-hours {
            font-size: 18px;
            font-weight: 600;
            text-align: right;
            margin-top: 16px;
            color: var(--accent-blue);
        }

        .radio-group {
            display: flex;
            gap: 24px;
            margin-top: 12px;
        }

        .radio-group label {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--text-main);
            cursor: pointer;
        }

        input[type="radio"], input[type="checkbox"] {
            accent-color: var(--accent-blue);
            width: 18px;
            height: 18px;
            cursor: pointer;
        }

        .hidden {
            display: none !important;
        }

        .checkbox-group {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            margin-bottom: 32px;
        }

        .checkbox-group label {
            font-weight: 400;
            font-size: 14px;
            line-height: 1.5;
            color: var(--text-main);
            margin: 0;
            cursor: pointer;
        }

        .submit-btn {
            width: 100%;
            font-size: 16px;
            padding: 18px;
        }

        .submit-btn:disabled {
            background-color: #a1c6ea;
            cursor: not-allowed;
            transform: none;
        }

        .status-message {
            margin-top: 20px;
            text-align: center;
            font-weight: 500;
            font-size: 15px;
        }