* {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
        font-family: Inter, "Segoe UI", Arial, sans-serif;
    }

    body {
        min-height: 100vh;
        display: flex;
        justify-content: center;
        align-items: center;
        background: #ffffff;
        padding: 24px;
        color: #1e293b;
    }

    .register-container {
        width: 100%;
        max-width: 560px;
        padding: 32px;
        background: #ffffff;
        border: 1px solid #e2e8f0;
        border-radius: 20px;
        box-shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
        animation: cardEntrance 0.8s ease;
        transition: transform 0.25s ease, box-shadow 0.25s ease;
    }

    .register-container:hover {
        transform: translateY(-2px);
        border-color: #EC9422; /* clean yellow border */
        box-shadow: 0 0 6px rgba(250, 204, 21, 0.3); /* outer glow only */
    }

    .header {
        text-align: center;
        margin-bottom: 24px;
    }

    .header h1 {
        font-size: 30px;
        font-weight: 700;
        color: #0f172a;
        margin-bottom: 8px;
    }

    .header p {
        font-size: 14px;
        color: #64748b;
    }

    form {
        display: grid;
        gap: 16px;
    }

    .grid-2 {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 16px;
    }

    .register-form-group {
        display: flex;
        flex-direction: column;
        gap: 6px;
    }

    .register-form-group label {
        font-size: 14px;
        font-weight: 600;
        color: #334155;
    }

    .register-form-group input,
    .register-form-group select {
        width: 100%;
        padding: 14px 16px;
        border: 1px solid #cbd5e1;
        border-radius: 12px;
        font-size: 15px;
        background: #f8fafc;
        color: #0f172a;
        outline: none;
        transition: all 0.2s ease;
    }

    .register-form-group input:focus,
    .register-form-group select:focus {
        border-color: #EC9422;
        background: #ffffff;
        box-shadow: 
            0 0 0 3px rgba(250, 204, 21, 0.25),
            0 0 10px rgba(250, 204, 21, 0.4);
        transform: translateY(-1px);
    }

    .password-wrapper {
        position: relative;
    }

    .password-wrapper button {
        position: absolute;
        top: 50%;
        right: 12px;
        transform: translateY(-50%);
        border: none;
        background: transparent;
        color: #2563eb;
        font-size: 13px;
        font-weight: 600;
        cursor: pointer;
    }

    .hint {
        font-size: 12px;
        color: #64748b;
        margin-top: -4px;
    }

    .register-btn {
        width: 100%;
        padding: 14px 18px;
        font-size: 15px;
        font-weight: 700;
        border: 2px solid #000;
        border-radius: 12px;
        background: #ffffff; /* white */
        color: #000;
        cursor: pointer;
        transition: all 0.25s ease;
    }

    .register-btn:hover {
        background: #dc2626; /* red */
        color: #ffffff;
        border-color: #dc2626;
        box-shadow: 0 8px 20px rgba(220, 38, 38, 0.35);
        transform: translateY(-1px);
    }

    .register-form-footer {
        text-align: center;
        margin-top: 18px;
        font-size: 14px;
        color: #64748b;
    }

    .register-form-footer a {
        color: #2563eb;
        text-decoration: none;
        font-weight: 600;
    }

    .register-form-footer a:hover {
        text-decoration: underline;
    }

    .register-container {
        position: relative;
        border: 2px solid transparent;
    }

    .message {
        display: none;
        padding: 12px 14px;
        border-radius: 10px;
        font-size: 14px;
        margin-bottom: 14px;
    }

    .message.success {
        display: block;
        background: #ecfdf5;
        color: #166534;
        border: 1px solid #bbf7d0;
    }

    .message.error {
        display: block;
        background: #fef2f2;
        color: #991b1b;
        border: 1px solid #fecaca;
    }

    .field-error {
        font-size: 12px;
        color: #dc2626;
    }

    .input-error {
        border-color: #dc2626 !important;
        background: #fff !important;
    }

    @keyframes cardEntrance {
        from {
            opacity: 0;
            transform: translateY(18px) scale(0.98);
        }
        to {
            opacity: 1;
            transform: translateY(0) scale(1);
        }
    }

    @media (max-width: 640px) {
        .register-container {
            padding: 24px;
            border-radius: 16px;
        }

        .grid-2 {
            grid-template-columns: 1fr;
        }

        .header h1 {
            font-size: 24px;
        }
    }